Merge branch 'master' into no-cursor-trail-vis

.github/workflows/_diffcalc_processor.yml

@@ -0,0 +1,228 @@
+name: "🔒diffcalc (do not use)"
+
+on:
+  workflow_call:
+    inputs:
+      id:
+        type: string
+      head-sha:
+        type: string
+      pr-url:
+        type: string
+      pr-text:
+        type: string
+      dispatch-inputs:
+        type: string
+    outputs:
+      target:
+        description: The comparison target.
+        value: ${{ jobs.generator.outputs.target }}
+      sheet:
+        description: The comparison spreadsheet.
+        value: ${{ jobs.generator.outputs.sheet }}
+    secrets:
+      DIFFCALC_GOOGLE_CREDENTIALS:
+        required: true
+
+env:
+  GENERATOR_DIR: ${{ github.workspace }}/${{ inputs.id }}
+  GENERATOR_ENV: ${{ github.workspace }}/${{ inputs.id }}/.env
+
+defaults:
+  run:
+    shell: bash -euo pipefail {0}
+
+jobs:
+  generator:
+    name: Run
+    runs-on: self-hosted
+    timeout-minutes: 720
+
+    outputs:
+      target: ${{ steps.run.outputs.target }}
+      sheet: ${{ steps.run.outputs.sheet }}
+
+    steps:
+      - name: Checkout diffcalc-sheet-generator
+        uses: actions/checkout@v4
+        with:
+          path: ${{ inputs.id }}
+          repository: 'smoogipoo/diffcalc-sheet-generator'
+
+      - name: Add base environment
+        env:
+          GOOGLE_CREDS_FILE: ${{ github.workspace }}/${{ inputs.id }}/google-credentials.json
+          VARS_JSON: ${{ (vars != null && toJSON(vars)) || '' }}
+        run: |
+          # Required by diffcalc-sheet-generator
+          cp '${{ env.GENERATOR_DIR }}/.env.sample' "${{ env.GENERATOR_ENV }}"
+
+          # Add Google credentials
+          echo '${{ secrets.DIFFCALC_GOOGLE_CREDENTIALS }}' | base64 -d > "${{ env.GOOGLE_CREDS_FILE }}"
+
+          # Add repository variables
+          echo "${VARS_JSON}" | jq -c '. | to_entries | .[]' | while read -r line; do
+              opt=$(jq -r '.key' <<< ${line})
+              val=$(jq -r '.value' <<< ${line})
+
+              if [[ "${opt}" =~ ^DIFFCALC_ ]]; then
+                optNoPrefix=$(echo "${opt}" | cut -d '_' -f2-)
+                sed -i "s;^${optNoPrefix}=.*$;${optNoPrefix}=${val};" "${{ env.GENERATOR_ENV }}"
+              fi
+          done
+
+      - name: Add HEAD environment
+        run: |
+          sed -i "s;^OSU_A=.*$;OSU_A=${{ inputs.head-sha }};" "${{ env.GENERATOR_ENV }}"
+
+      - name: Add pull-request environment
+        if: ${{ inputs.pr-url != '' }}
+        run: |
+          sed -i "s;^OSU_B=.*$;OSU_B=${{ inputs.pr-url }};" "${{ env.GENERATOR_ENV }}"
+
+      - name: Add comment environment
+        if: ${{ inputs.pr-text != '' }}
+        env:
+          PR_TEXT: ${{ inputs.pr-text }}
+        run: |
+          # Add comment environment
+          echo "${PR_TEXT}" | sed -r 's/\r$//' | { grep -E '^\w+=' || true; } | while read -r line; do
+              opt=$(echo "${line}" | cut -d '=' -f1)
+              sed -i "s;^${opt}=.*$;${line};" "${{ env.GENERATOR_ENV }}"
+          done
+
+      - name: Add dispatch environment
+        if: ${{ inputs.dispatch-inputs != '' }}
+        env:
+          DISPATCH_INPUTS_JSON: ${{ inputs.dispatch-inputs }}
+        run: |
+          function get_input() {
+            echo "${DISPATCH_INPUTS_JSON}" | jq -r ".\"$1\""
+          }
+
+          osu_a=$(get_input 'osu-a')
+          osu_b=$(get_input 'osu-b')
+          ruleset=$(get_input 'ruleset')
+          generators=$(get_input 'generators')
+          difficulty_calculator_a=$(get_input 'difficulty-calculator-a')
+          difficulty_calculator_b=$(get_input 'difficulty-calculator-b')
+          score_processor_a=$(get_input 'score-processor-a')
+          score_processor_b=$(get_input 'score-processor-b')
+          converts=$(get_input 'converts')
+          ranked_only=$(get_input 'ranked-only')
+
+          sed -i "s;^OSU_B=.*$;OSU_B=${osu_b};" "${{ env.GENERATOR_ENV }}"
+          sed -i "s/^RULESET=.*$/RULESET=${ruleset}/" "${{ env.GENERATOR_ENV }}"
+          sed -i "s/^GENERATORS=.*$/GENERATORS=${generators}/" "${{ env.GENERATOR_ENV }}"
+
+          if [[ "${osu_a}" != 'latest' ]]; then
+              sed -i "s;^OSU_A=.*$;OSU_A=${osu_a};" "${{ env.GENERATOR_ENV }}"
+          fi
+
+          if [[ "${difficulty_calculator_a}" != 'latest' ]]; then
+              sed -i "s;^DIFFICULTY_CALCULATOR_A=.*$;DIFFICULTY_CALCULATOR_A=${difficulty_calculator_a};" "${{ env.GENERATOR_ENV }}"
+          fi
+
+          if [[ "${difficulty_calculator_b}" != 'latest' ]]; then
+              sed -i "s;^DIFFICULTY_CALCULATOR_B=.*$;DIFFICULTY_CALCULATOR_B=${difficulty_calculator_b};" "${{ env.GENERATOR_ENV }}"
+          fi
+
+          if [[ "${score_processor_a}" != 'latest' ]]; then
+              sed -i "s;^SCORE_PROCESSOR_A=.*$;SCORE_PROCESSOR_A=${score_processor_a};" "${{ env.GENERATOR_ENV }}"
+          fi
+
+          if [[ "${score_processor_b}" != 'latest' ]]; then
+              sed -i "s;^SCORE_PROCESSOR_B=.*$;SCORE_PROCESSOR_B=${score_processor_b};" "${{ env.GENERATOR_ENV }}"
+          fi
+
+          if [[ "${converts}" == 'true' ]]; then
+              sed -i 's/^NO_CONVERTS=.*$/NO_CONVERTS=0/' "${{ env.GENERATOR_ENV }}"
+          else
+              sed -i 's/^NO_CONVERTS=.*$/NO_CONVERTS=1/' "${{ env.GENERATOR_ENV }}"
+          fi
+
+          if [[ "${ranked_only}" == 'true' ]]; then
+              sed -i 's/^RANKED_ONLY=.*$/RANKED_ONLY=1/' "${{ env.GENERATOR_ENV }}"
+          else
+              sed -i 's/^RANKED_ONLY=.*$/RANKED_ONLY=0/' "${{ env.GENERATOR_ENV }}"
+          fi
+
+      - name: Query latest scores
+        id: query-scores
+        run: |
+          ruleset=$(cat ${{ env.GENERATOR_ENV }} | grep -E '^RULESET=' | cut -d '=' -f2-)
+          performance_data_name=$(curl -s "https://data.ppy.sh/" | grep "performance_${ruleset}_top_1000\b" | tail -1 | awk -F "'" '{print $2}' | sed 's/\.tar\.bz2//g')
+
+          echo "TARGET_DIR=${{ env.GENERATOR_DIR }}/sql/${ruleset}" >> "${GITHUB_OUTPUT}"
+          echo "DATA_NAME=${performance_data_name}" >> "${GITHUB_OUTPUT}"
+          echo "DATA_PKG=${performance_data_name}.tar.bz2" >> "${GITHUB_OUTPUT}"
+
+      - name: Restore score cache
+        id: restore-score-cache
+        uses: maxnowack/local-cache@720e69c948191660a90aa1cf6a42fc4d2dacdf30 # v2
+        with:
+          path: ${{ steps.query-scores.outputs.DATA_PKG }}
+          key: ${{ steps.query-scores.outputs.DATA_NAME }}
+
+      - name: Download scores
+        if: steps.restore-score-cache.outputs.cache-hit != 'true'
+        run: |
+          wget -q -O "${{ steps.query-scores.outputs.DATA_PKG }}" "https://data.ppy.sh/${{ steps.query-scores.outputs.DATA_PKG }}"
+
+      - name: Extract scores
+        run: |
+          tar -I lbzip2 -xf "${{ steps.query-scores.outputs.DATA_PKG }}"
+          rm -r "${{ steps.query-scores.outputs.TARGET_DIR }}"
+          mv "${{ steps.query-scores.outputs.DATA_NAME }}" "${{ steps.query-scores.outputs.TARGET_DIR }}"
+
+      - name: Query latest beatmaps
+        id: query-beatmaps
+        run: |
+          beatmaps_data_name=$(curl -s "https://data.ppy.sh/" | grep "osu_files" | tail -1 | awk -F "'" '{print $2}' | sed 's/\.tar\.bz2//g')
+
+          echo "TARGET_DIR=${{ env.GENERATOR_DIR }}/beatmaps" >> "${GITHUB_OUTPUT}"
+          echo "DATA_NAME=${beatmaps_data_name}" >> "${GITHUB_OUTPUT}"
+          echo "DATA_PKG=${beatmaps_data_name}.tar.bz2" >> "${GITHUB_OUTPUT}"
+
+      - name: Restore beatmap cache
+        id: restore-beatmap-cache
+        uses: maxnowack/local-cache@720e69c948191660a90aa1cf6a42fc4d2dacdf30 # v2
+        with:
+          path: ${{ steps.query-beatmaps.outputs.DATA_PKG }}
+          key: ${{ steps.query-beatmaps.outputs.DATA_NAME }}
+
+      - name: Download beatmap
+        if: steps.restore-beatmap-cache.outputs.cache-hit != 'true'
+        run: |
+          wget -q -O "${{ steps.query-beatmaps.outputs.DATA_PKG }}" "https://data.ppy.sh/${{ steps.query-beatmaps.outputs.DATA_PKG }}"
+
+      - name: Extract beatmap
+        run: |
+          tar -I lbzip2 -xf "${{ steps.query-beatmaps.outputs.DATA_PKG }}"
+          rm -r "${{ steps.query-beatmaps.outputs.TARGET_DIR }}"
+          mv "${{ steps.query-beatmaps.outputs.DATA_NAME }}" "${{ steps.query-beatmaps.outputs.TARGET_DIR }}"
+
+      - name: Run
+        id: run
+        run: |
+          # Add the GitHub token. This needs to be done here because it's unique per-job.
+          sed -i 's/^GH_TOKEN=.*$/GH_TOKEN=${{ github.token }}/' "${{ env.GENERATOR_ENV }}"
+
+          cd "${{ env.GENERATOR_DIR }}"
+
+          docker compose up --build --detach
+          docker compose logs --follow &
+          docker compose wait generator
+
+          link=$(docker compose logs --tail 10 generator | grep 'http' | sed -E 's/^.*(http.*)$/\1/')
+          target=$(cat "${{ env.GENERATOR_ENV }}" | grep -E '^OSU_B=' | cut -d '=' -f2-)
+
+          echo "target=${target}" >> "${GITHUB_OUTPUT}"
+          echo "sheet=${link}" >> "${GITHUB_OUTPUT}"
+
+      - name: Shutdown
+        if: ${{ always() }}
+        run: |
+          cd "${{ env.GENERATOR_DIR }}"
+          docker compose down --volumes
+          rm -rf "${{ env.GENERATOR_DIR }}"

.github/workflows/ci.yml

@@ -88,7 +88,7 @@ jobs:
       # Attempt to upload results even if test fails.
       # https://docs.github.com/en/actions/reference/context-and-expression-syntax-for-github-actions#always
       - name: Upload Test Results
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: ${{ always() }}
         with:
           name: osu-test-results-${{matrix.os.prettyname}}-${{matrix.threadingMode}}

.github/workflows/diffcalc.yml

@@ -103,26 +103,11 @@ permissions:
 env:
   EXECUTION_ID: execution-${{ github.run_id }}-${{ github.run_number }}-${{ github.run_attempt }}
 
+defaults:
+  run:
+    shell: bash -euo pipefail {0}
+
 jobs:
-  master-environment:
-    name: Save master environment
-    runs-on: ubuntu-latest
-    outputs:
-      HEAD: ${{ steps.get-head.outputs.HEAD }}
-    steps:
-      - name: Checkout osu
-        uses: actions/checkout@v4
-        with:
-          ref: master
-          sparse-checkout: |
-            README.md
-
-      - name: Get HEAD ref
-        id: get-head
-        run: |
-          ref=$(git log -1 --format='%H')
-          echo "HEAD=https://github.com/${{ github.repository }}/commit/${ref}" >> "${GITHUB_OUTPUT}"
-
   check-permissions:
     name: Check permissions
     runs-on: ubuntu-latest
@@ -138,9 +123,23 @@ jobs:
           done
           exit 1
 
+  run-diffcalc:
+    name: Run spreadsheet generator
+    needs: check-permissions
+    uses: ./.github/workflows/_diffcalc_processor.yml
+    with:
+      # Can't reference env... Why GitHub, WHY?
+      id: execution-${{ github.run_id }}-${{ github.run_number }}-${{ github.run_attempt }}
+      head-sha: https://github.com/${{ github.repository }}/commit/${{ github.event.pull_request.head.sha || github.sha }}
+      pr-url: ${{ github.event.issue.pull_request.html_url || '' }}
+      pr-text: ${{ github.event.comment.body || '' }}
+      dispatch-inputs: ${{ (github.event.type == 'workflow_dispatch' && toJSON(inputs)) || '' }}
+    secrets:
+      DIFFCALC_GOOGLE_CREDENTIALS: ${{ secrets.DIFFCALC_GOOGLE_CREDENTIALS }}
+
   create-comment:
     name: Create PR comment
-    needs: [ master-environment, check-permissions ]
+    needs: check-permissions
     runs-on: ubuntu-latest
     if: ${{ github.event_name == 'issue_comment' && github.event.issue.pull_request }}
     steps:
@@ -153,249 +152,34 @@ jobs:
 
             *This comment will update on completion*
 
-  directory:
-    name: Prepare directory
-    needs: check-permissions
-    runs-on: self-hosted
-    outputs:
-      GENERATOR_DIR: ${{ steps.set-outputs.outputs.GENERATOR_DIR }}
-      GENERATOR_ENV: ${{ steps.set-outputs.outputs.GENERATOR_ENV }}
-      GOOGLE_CREDS_FILE: ${{ steps.set-outputs.outputs.GOOGLE_CREDS_FILE }}
-    steps:
-      - name: Checkout diffcalc-sheet-generator
-        uses: actions/checkout@v4
-        with:
-          path: ${{ env.EXECUTION_ID }}
-          repository: 'smoogipoo/diffcalc-sheet-generator'
-
-      - name: Set outputs
-        id: set-outputs
-        run: |
-          echo "GENERATOR_DIR=${{ github.workspace }}/${{ env.EXECUTION_ID }}" >> "${GITHUB_OUTPUT}"
-          echo "GENERATOR_ENV=${{ github.workspace }}/${{ env.EXECUTION_ID }}/.env" >> "${GITHUB_OUTPUT}"
-          echo "GOOGLE_CREDS_FILE=${{ github.workspace }}/${{ env.EXECUTION_ID }}/google-credentials.json" >> "${GITHUB_OUTPUT}"
-
-  environment:
-    name: Setup environment
-    needs: [ master-environment, directory ]
-    runs-on: self-hosted
-    env:
-      VARS_JSON: ${{ toJSON(vars) }}
-    steps:
-      - name: Add base environment
-        run: |
-          # Required by diffcalc-sheet-generator
-          cp '${{ needs.directory.outputs.GENERATOR_DIR }}/.env.sample' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-
-          # Add Google credentials
-          echo '${{ secrets.DIFFCALC_GOOGLE_CREDENTIALS }}' | base64 -d > "${{ needs.directory.outputs.GOOGLE_CREDS_FILE }}"
-
-          # Add repository variables
-          echo "${VARS_JSON}" | jq -c '. | to_entries | .[]' | while read -r line; do
-              opt=$(jq -r '.key' <<< ${line})
-              val=$(jq -r '.value' <<< ${line})
-
-              if [[ "${opt}" =~ ^DIFFCALC_ ]]; then
-                optNoPrefix=$(echo "${opt}" | cut -d '_' -f2-)
-                sed -i "s;^${optNoPrefix}=.*$;${optNoPrefix}=${val};" "${{ needs.directory.outputs.GENERATOR_ENV }}"
-              fi
-          done
-
-      - name: Add master environment
-        run: |
-          sed -i "s;^OSU_A=.*$;OSU_A=${{ needs.master-environment.outputs.HEAD }};" "${{ needs.directory.outputs.GENERATOR_ENV }}"
-
-      - name: Add pull-request environment
-        if: ${{ github.event_name == 'issue_comment' && github.event.issue.pull_request }}
-        run: |
-          sed -i "s;^OSU_B=.*$;OSU_B=${{ github.event.issue.pull_request.html_url }};" "${{ needs.directory.outputs.GENERATOR_ENV }}"
-
-      - name: Add comment environment
-        if: ${{ github.event_name == 'issue_comment' }}
-        env:
-          COMMENT_BODY: ${{ github.event.comment.body }}
-        run: |
-          # Add comment environment
-          echo "$COMMENT_BODY" | sed -r 's/\r$//' | grep -E '^\w+=' | while read -r line; do
-              opt=$(echo "${line}" | cut -d '=' -f1)
-              sed -i "s;^${opt}=.*$;${line};" "${{ needs.directory.outputs.GENERATOR_ENV }}"
-          done
-
-      - name: Add dispatch environment
-        if: ${{ github.event_name == 'workflow_dispatch' }}
-        run: |
-          sed -i 's;^OSU_B=.*$;OSU_B=${{ inputs.osu-b }};' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-          sed -i 's/^RULESET=.*$/RULESET=${{ inputs.ruleset }}/' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-          sed -i 's/^GENERATORS=.*$/GENERATORS=${{ inputs.generators }}/' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-
-          if [[ '${{ inputs.osu-a }}' != 'latest' ]]; then
-              sed -i 's;^OSU_A=.*$;OSU_A=${{ inputs.osu-a }};' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-          fi
-
-          if [[ '${{ inputs.difficulty-calculator-a }}' != 'latest' ]]; then
-              sed -i 's;^DIFFICULTY_CALCULATOR_A=.*$;DIFFICULTY_CALCULATOR_A=${{ inputs.difficulty-calculator-a }};' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-          fi
-
-          if [[ '${{ inputs.difficulty-calculator-b }}' != 'latest' ]]; then
-              sed -i 's;^DIFFICULTY_CALCULATOR_B=.*$;DIFFICULTY_CALCULATOR_B=${{ inputs.difficulty-calculator-b }};' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-          fi
-
-          if [[ '${{ inputs.score-processor-a }}' != 'latest' ]]; then
-              sed -i 's;^SCORE_PROCESSOR_A=.*$;SCORE_PROCESSOR_A=${{ inputs.score-processor-a }};' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-          fi
-
-          if [[ '${{ inputs.score-processor-b }}' != 'latest' ]]; then
-              sed -i 's;^SCORE_PROCESSOR_B=.*$;SCORE_PROCESSOR_B=${{ inputs.score-processor-b }};' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-          fi
-
-          if [[ '${{ inputs.converts }}' == 'true' ]]; then
-              sed -i 's/^NO_CONVERTS=.*$/NO_CONVERTS=0/' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-          else
-              sed -i 's/^NO_CONVERTS=.*$/NO_CONVERTS=1/' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-          fi
-
-          if [[ '${{ inputs.ranked-only }}' == 'true' ]]; then
-              sed -i 's/^RANKED_ONLY=.*$/RANKED_ONLY=1/' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-          else
-              sed -i 's/^RANKED_ONLY=.*$/RANKED_ONLY=0/' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-          fi
-
-  scores:
-    name: Setup scores
-    needs: [ directory, environment ]
-    runs-on: self-hosted
-    steps:
-      - name: Query latest data
-        id: query
-        run: |
-          ruleset=$(cat ${{ needs.directory.outputs.GENERATOR_ENV }} | grep -E '^RULESET=' | cut -d '=' -f2-)
-          performance_data_name=$(curl -s "https://data.ppy.sh/" | grep "performance_${ruleset}_top_1000\b" | tail -1 | awk -F "'" '{print $2}' | sed 's/\.tar\.bz2//g')
-
-          echo "TARGET_DIR=${{ needs.directory.outputs.GENERATOR_DIR }}/sql/${ruleset}" >> "${GITHUB_OUTPUT}"
-          echo "DATA_NAME=${performance_data_name}" >> "${GITHUB_OUTPUT}"
-          echo "DATA_PKG=${performance_data_name}.tar.bz2" >> "${GITHUB_OUTPUT}"
-
-      - name: Restore cache
-        id: restore-cache
-        uses: maxnowack/local-cache@720e69c948191660a90aa1cf6a42fc4d2dacdf30 # v2
-        with:
-          path: ${{ steps.query.outputs.DATA_PKG }}
-          key: ${{ steps.query.outputs.DATA_NAME }}
-
-      - name: Download
-        if: steps.restore-cache.outputs.cache-hit != 'true'
-        run: |
-          wget -q -O "${{ steps.query.outputs.DATA_PKG }}" "https://data.ppy.sh/${{ steps.query.outputs.DATA_PKG }}"
-
-      - name: Extract
-        run: |
-          tar -I lbzip2 -xf "${{ steps.query.outputs.DATA_PKG }}"
-          rm -r "${{ steps.query.outputs.TARGET_DIR }}"
-          mv "${{ steps.query.outputs.DATA_NAME }}" "${{ steps.query.outputs.TARGET_DIR }}"
-
-  beatmaps:
-    name: Setup beatmaps
-    needs: directory
-    runs-on: self-hosted
-    steps:
-      - name: Query latest data
-        id: query
-        run: |
-          beatmaps_data_name=$(curl -s "https://data.ppy.sh/" | grep "osu_files" | tail -1 | awk -F "'" '{print $2}' | sed 's/\.tar\.bz2//g')
-
-          echo "TARGET_DIR=${{ needs.directory.outputs.GENERATOR_DIR }}/beatmaps" >> "${GITHUB_OUTPUT}"
-          echo "DATA_NAME=${beatmaps_data_name}" >> "${GITHUB_OUTPUT}"
-          echo "DATA_PKG=${beatmaps_data_name}.tar.bz2" >> "${GITHUB_OUTPUT}"
-
-      - name: Restore cache
-        id: restore-cache
-        uses: maxnowack/local-cache@720e69c948191660a90aa1cf6a42fc4d2dacdf30 # v2
-        with:
-          path: ${{ steps.query.outputs.DATA_PKG }}
-          key: ${{ steps.query.outputs.DATA_NAME }}
-
-      - name: Download
-        if: steps.restore-cache.outputs.cache-hit != 'true'
-        run: |
-          wget -q -O "${{ steps.query.outputs.DATA_PKG }}" "https://data.ppy.sh/${{ steps.query.outputs.DATA_PKG }}"
-
-      - name: Extract
-        run: |
-          tar -I lbzip2 -xf "${{ steps.query.outputs.DATA_PKG }}"
-          rm -r "${{ steps.query.outputs.TARGET_DIR }}"
-          mv "${{ steps.query.outputs.DATA_NAME }}" "${{ steps.query.outputs.TARGET_DIR }}"
-
-  generator:
-    name: Run generator
-    needs: [ directory, environment, scores, beatmaps ]
-    runs-on: self-hosted
-    timeout-minutes: 720
-    outputs:
-      TARGET: ${{ steps.run.outputs.TARGET }}
-      SPREADSHEET_LINK: ${{ steps.run.outputs.SPREADSHEET_LINK }}
-    steps:
-      - name: Run
-        id: run
-        run: |
-          # Add the GitHub token. This needs to be done here because it's unique per-job.
-          sed -i 's/^GH_TOKEN=.*$/GH_TOKEN=${{ github.token }}/' "${{ needs.directory.outputs.GENERATOR_ENV }}"
-
-          cd "${{ needs.directory.outputs.GENERATOR_DIR }}"
-
-          docker compose up --build --detach
-          docker compose logs --follow &
-          docker compose wait generator
-
-          link=$(docker compose logs --tail 10 generator | grep 'http' | sed -E 's/^.*(http.*)$/\1/')
-          target=$(cat "${{ needs.directory.outputs.GENERATOR_ENV }}" | grep -E '^OSU_B=' | cut -d '=' -f2-)
-
-          echo "TARGET=${target}" >> "${GITHUB_OUTPUT}"
-          echo "SPREADSHEET_LINK=${link}" >> "${GITHUB_OUTPUT}"
-
-      - name: Shutdown
-        if: ${{ always() }}
-        run: |
-          cd "${{ needs.directory.outputs.GENERATOR_DIR }}"
-          docker compose down --volumes
-
   output-cli:
-    name: Output info
-    needs: generator
+    name: Info
+    needs: run-diffcalc
     runs-on: ubuntu-latest
     steps:
       - name: Output info
         run: |
-          echo "Target: ${{ needs.generator.outputs.TARGET }}"
-          echo "Spreadsheet: ${{ needs.generator.outputs.SPREADSHEET_LINK }}"
-
-  cleanup:
-    name: Cleanup
-    needs: [ directory, generator ]
-    if: ${{ always() && needs.directory.result == 'success' }}
-    runs-on: self-hosted
-    steps:
-      - name: Cleanup
-        run: |
-          rm -rf "${{ needs.directory.outputs.GENERATOR_DIR }}"
+          echo "Target: ${{ needs.run-diffcalc.outputs.target }}"
+          echo "Spreadsheet: ${{ needs.run-diffcalc.outputs.sheet }}"
 
   update-comment:
     name: Update PR comment
-    needs: [ create-comment, generator ]
+    needs: [ create-comment, run-diffcalc ]
     runs-on: ubuntu-latest
     if: ${{ always() && needs.create-comment.result == 'success' }}
     steps:
       - name: Update comment on success
-        if: ${{ needs.generator.result == 'success' }}
+        if: ${{ needs.run-diffcalc.result == 'success' }}
         uses: thollander/actions-comment-pull-request@fabd468d3a1a0b97feee5f6b9e499eab0dd903f6 # v2.5.0
         with:
           comment_tag: ${{ env.EXECUTION_ID }}
           mode: recreate
           message: |
-            Target: ${{ needs.generator.outputs.TARGET }}
-            Spreadsheet: ${{ needs.generator.outputs.SPREADSHEET_LINK }}
+            Target: ${{ needs.run-diffcalc.outputs.target }}
+            Spreadsheet: ${{ needs.run-diffcalc.outputs.sheet }}
 
       - name: Update comment on failure
-        if: ${{ needs.generator.result == 'failure' }}
+        if: ${{ needs.run-diffcalc.result == 'failure' }}
         uses: thollander/actions-comment-pull-request@fabd468d3a1a0b97feee5f6b9e499eab0dd903f6 # v2.5.0
         with:
           comment_tag: ${{ env.EXECUTION_ID }}
@@ -404,7 +188,7 @@ jobs:
             Difficulty calculation failed: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
 
       - name: Update comment on cancellation
-        if: ${{ needs.generator.result == 'cancelled' }}
+        if: ${{ needs.run-diffcalc.result == 'cancelled' }}
         uses: thollander/actions-comment-pull-request@fabd468d3a1a0b97feee5f6b9e499eab0dd903f6 # v2.5.0
         with:
           comment_tag: ${{ env.EXECUTION_ID }}

.github/workflows/report-nunit.yml

@@ -5,33 +5,40 @@
 name: Annotate CI run with test results
 on:
   workflow_run:
-    workflows: ["Continuous Integration"]
+    workflows: [ "Continuous Integration" ]
     types:
       - completed
-permissions: {}
+
+permissions:
+  contents: read
+  actions: read
+  checks: write
+
 jobs:
   annotate:
-    permissions:
-      checks: write # to create checks (dorny/test-reporter)
-
     name: Annotate CI run with test results
     runs-on: ubuntu-latest
     if: ${{ github.event.workflow_run.conclusion != 'cancelled' }}
-    strategy:
-       fail-fast: false
-       matrix:
-          os:
-            - { prettyname: Windows }
-            - { prettyname: macOS }
-            - { prettyname: Linux }
-          threadingMode: ['SingleThread', 'MultiThreaded']
     timeout-minutes: 5
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ github.event.workflow_run.repository.full_name }}
+          ref: ${{ github.event.workflow_run.head_sha }}
+
+      - name: Download results
+        uses: actions/download-artifact@v4
+        with:
+          pattern: osu-test-results-*
+          merge-multiple: true
+          run-id: ${{ github.event.workflow_run.id }}
+          github-token: ${{ github.token }}
+
       - name: Annotate CI run with test results
         uses: dorny/test-reporter@v1.8.0
         with:
-          artifact: osu-test-results-${{matrix.os.prettyname}}-${{matrix.threadingMode}}
-          name: Test Results (${{matrix.os.prettyname}}, ${{matrix.threadingMode}})
+          name: Results
           path: "*.trx"
           reporter: dotnet-trx
           list-suites: 'failed'

osu.Desktop/NVAPI.cs

@@ -141,12 +141,12 @@ namespace osu.Desktop
 
                 // Make sure that this is a laptop.
                 IntPtr[] gpus = new IntPtr[64];
-                if (checkError(EnumPhysicalGPUs(gpus, out int gpuCount)))
+                if (checkError(EnumPhysicalGPUs(gpus, out int gpuCount), nameof(EnumPhysicalGPUs)))
                     return false;
 
                 for (int i = 0; i < gpuCount; i++)
                 {
-                    if (checkError(GetSystemType(gpus[i], out var type)))
+                    if (checkError(GetSystemType(gpus[i], out var type), nameof(GetSystemType)))
                         return false;
 
                     if (type == NvSystemType.LAPTOP)
@@ -182,7 +182,7 @@ namespace osu.Desktop
 
                 bool success = setSetting(NvSettingID.OGL_THREAD_CONTROL_ID, (uint)value);
 
-                Logger.Log(success ? $"Threaded optimizations set to \"{value}\"!" : "Threaded optimizations set failed!");
+                Logger.Log(success ? $"[NVAPI] Threaded optimizations set to \"{value}\"!" : "[NVAPI] Threaded optimizations set failed!");
             }
         }
 
@@ -205,7 +205,7 @@ namespace osu.Desktop
 
             uint numApps = profile.NumOfApps;
 
-            if (checkError(EnumApplications(sessionHandle, profileHandle, 0, ref numApps, applications)))
+            if (checkError(EnumApplications(sessionHandle, profileHandle, 0, ref numApps, applications), nameof(EnumApplications)))
                 return false;
 
             for (uint i = 0; i < numApps; i++)
@@ -236,10 +236,10 @@ namespace osu.Desktop
 
             isApplicationSpecific = true;
 
-            if (checkError(FindApplicationByName(sessionHandle, osu_filename, out profileHandle, ref application)))
+            if (checkError(FindApplicationByName(sessionHandle, osu_filename, out profileHandle, ref application), nameof(FindApplicationByName)))
             {
                 isApplicationSpecific = false;
-                if (checkError(GetCurrentGlobalProfile(sessionHandle, out profileHandle)))
+                if (checkError(GetCurrentGlobalProfile(sessionHandle, out profileHandle), nameof(GetCurrentGlobalProfile)))
                     return false;
             }
 
@@ -258,12 +258,10 @@ namespace osu.Desktop
                 Version = NvProfile.Stride,
                 IsPredefined = 0,
                 ProfileName = PROFILE_NAME,
-                GPUSupport = new uint[32]
+                GpuSupport = NvDrsGpuSupport.Geforce
             };
 
-            newProfile.GPUSupport[0] = 1;
-
-            if (checkError(CreateProfile(sessionHandle, ref newProfile, out profileHandle)))
+            if (checkError(CreateProfile(sessionHandle, ref newProfile, out profileHandle), nameof(CreateProfile)))
                 return false;
 
             return true;
@@ -284,7 +282,7 @@ namespace osu.Desktop
                 SettingID = settingId
             };
 
-            if (checkError(GetSetting(sessionHandle, profileHandle, settingId, ref setting)))
+            if (checkError(GetSetting(sessionHandle, profileHandle, settingId, ref setting), nameof(GetSetting)))
                 return false;
 
             return true;
@@ -313,7 +311,7 @@ namespace osu.Desktop
             };
 
             // Set the thread state
-            if (checkError(SetSetting(sessionHandle, profileHandle, ref newSetting)))
+            if (checkError(SetSetting(sessionHandle, profileHandle, ref newSetting), nameof(SetSetting)))
                 return false;
 
             // Get the profile (needed to check app count)
@@ -321,7 +319,7 @@ namespace osu.Desktop
             {
                 Version = NvProfile.Stride
             };
-            if (checkError(GetProfileInfo(sessionHandle, profileHandle, ref profile)))
+            if (checkError(GetProfileInfo(sessionHandle, profileHandle, ref profile), nameof(GetProfileInfo)))
                 return false;
 
             if (!containsApplication(profileHandle, profile, out application))
@@ -332,12 +330,12 @@ namespace osu.Desktop
                 application.AppName = osu_filename;
                 application.UserFriendlyName = APPLICATION_NAME;
 
-                if (checkError(CreateApplication(sessionHandle, profileHandle, ref application)))
+                if (checkError(CreateApplication(sessionHandle, profileHandle, ref application), nameof(CreateApplication)))
                     return false;
             }
 
             // Save!
-            return !checkError(SaveSettings(sessionHandle));
+            return !checkError(SaveSettings(sessionHandle), nameof(SaveSettings));
         }
 
         /// <summary>
@@ -346,20 +344,25 @@ namespace osu.Desktop
         /// <returns>If the operation succeeded.</returns>
         private static bool createSession()
         {
-            if (checkError(CreateSession(out sessionHandle)))
+            if (checkError(CreateSession(out sessionHandle), nameof(CreateSession)))
                 return false;
 
             // Load settings into session
-            if (checkError(LoadSettings(sessionHandle)))
+            if (checkError(LoadSettings(sessionHandle), nameof(LoadSettings)))
                 return false;
 
             return true;
         }
 
-        private static bool checkError(NvStatus status)
+        private static bool checkError(NvStatus status, string caller)
         {
             Status = status;
-            return status != NvStatus.OK;
+
+            bool hasError = status != NvStatus.OK;
+            if (hasError)
+                Logger.Log($"[NVAPI] {caller} call failed with status code {status}");
+
+            return hasError;
         }
 
         static NVAPI()
@@ -458,9 +461,7 @@ namespace osu.Desktop
         [MarshalAs(UnmanagedType.ByValTStr, SizeConst = NVAPI.UNICODE_STRING_MAX)]
         public string ProfileName;
 
-        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
-        public uint[] GPUSupport;
-
+        public NvDrsGpuSupport GpuSupport;
         public uint IsPredefined;
         public uint NumOfApps;
         public uint NumOfSettings;
@@ -606,6 +607,7 @@ namespace osu.Desktop
         SYNC_NOT_ACTIVE = -194, // The requested action cannot be performed without Sync being enabled.
         SYNC_MASTER_NOT_FOUND = -195, // The requested action cannot be performed without Sync Master being enabled.
         INVALID_SYNC_TOPOLOGY = -196, // Invalid displays passed in the NV_GSYNC_DISPLAY pointer.
+
         ECID_SIGN_ALGO_UNSUPPORTED = -197, // The specified signing algorithm is not supported. Either an incorrect value was entered or the current installed driver/hardware does not support the input value.
         ECID_KEY_VERIFICATION_FAILED = -198, // The encrypted public key verification has failed.
         FIRMWARE_OUT_OF_DATE = -199, // The device's firmware is out of date.
@@ -744,4 +746,12 @@ namespace osu.Desktop
         OGL_THREAD_CONTROL_NUM_VALUES = 2,
         OGL_THREAD_CONTROL_DEFAULT = 0
     }
+
+    [Flags]
+    internal enum NvDrsGpuSupport : uint
+    {
+        Geforce = 1 << 0,
+        Quadro = 1 << 1,
+        Nvs = 1 << 2
+    }
 }

osu.Desktop/osu.Desktop.csproj

@@ -26,7 +26,7 @@
   <ItemGroup Label="Package References">
     <PackageReference Include="System.IO.Packaging" Version="8.0.1" />
     <PackageReference Include="DiscordRichPresence" Version="1.2.1.24" />
-    <PackageReference Include="Velopack" Version="0.0.630-g9c52e40" />
+    <PackageReference Include="Velopack" Version="0.0.869" />
   </ItemGroup>
   <ItemGroup Label="Resources">
     <EmbeddedResource Include="lazer.ico" />

osu.Game.Rulesets.Mania/Difficulty/Skills/Strain.cs

@@ -5,6 +5,7 @@ using System;
 using osu.Framework.Utils;
 using osu.Game.Rulesets.Difficulty.Preprocessing;
 using osu.Game.Rulesets.Difficulty.Skills;
+using osu.Game.Rulesets.Difficulty.Utils;
 using osu.Game.Rulesets.Mania.Difficulty.Preprocessing;
 using osu.Game.Rulesets.Mods;
 
@@ -73,7 +74,7 @@ namespace osu.Game.Rulesets.Mania.Difficulty.Skills
             // 0.0 +--------+-+---------------> Release Difference / ms
             //         release_threshold
             if (isOverlapping)
-                holdAddition = 1 / (1 + Math.Exp(0.27 * (release_threshold - closestEndTime)));
+                holdAddition = DifficultyCalculationUtils.Logistic(x: closestEndTime, multiplier: 0.27, midpointOffset: release_threshold);
 
             // Decay and increase individualStrains in own column
             individualStrains[column] = applyDecay(individualStrains[column], startTime - startTimes[column], individual_decay_base);

osu.Game.Rulesets.Mania/Edit/ManiaHitObjectComposer.cs

@@ -92,7 +92,7 @@ namespace osu.Game.Rulesets.Mania.Edit
             base.Update();
 
             if (screenWithTimeline?.TimelineArea.Timeline != null)
-                drawableRuleset.TimelineTimeRange = EditorClock.TrackLength / screenWithTimeline.TimelineArea.Timeline.CurrentZoom / 2;
+                drawableRuleset.TimelineTimeRange = EditorClock.TrackLength / screenWithTimeline.TimelineArea.Timeline.CurrentZoom.Value / 2;
         }
     }
 }

osu.Game.Rulesets.Mania/Skinning/Legacy/LegacyStageBackground.cs

@@ -54,7 +54,8 @@ namespace osu.Game.Rulesets.Mania.Skinning.Legacy
                 },
                 columnBackgrounds = new ColumnFlow<Drawable>(stageDefinition)
                 {
-                    RelativeSizeAxes = Axes.Y
+                    RelativeSizeAxes = Axes.Y,
+                    Masking = false,
                 },
                 new HitTargetInsetContainer
                 {
@@ -126,8 +127,8 @@ namespace osu.Game.Rulesets.Mania.Skinning.Legacy
                             },
                             new Container
                             {
+                                X = isLastColumn ? -0.16f : 0,
                                 Anchor = Anchor.TopRight,
-                                Origin = Anchor.TopRight,
                                 RelativeSizeAxes = Axes.Y,
                                 Width = rightLineWidth,
                                 Scale = new Vector2(0.740f, 1),

osu.Game.Rulesets.Mania/UI/ColumnFlow.cs

@@ -28,6 +28,12 @@ namespace osu.Game.Rulesets.Mania.UI
         private readonly FillFlowContainer<Container<TContent>> columns;
         private readonly StageDefinition stageDefinition;
 
+        public new bool Masking
+        {
+            get => base.Masking;
+            set => base.Masking = value;
+        }
+
         public ColumnFlow(StageDefinition stageDefinition)
         {
             this.stageDefinition = stageDefinition;

osu.Game.Rulesets.Osu.Tests/Editor/TestSceneSliderDrawing.cs

@@ -8,6 +8,7 @@ using osu.Framework.Graphics.Containers;
 using osu.Framework.Input;
 using osu.Framework.Testing;
 using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders;
 using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.UI;
 using osu.Game.Screens.Edit.Components.RadioButtons;
@@ -24,38 +25,57 @@ namespace osu.Game.Rulesets.Osu.Tests.Editor
         protected override IBeatmap CreateBeatmap(RulesetInfo ruleset) => new TestBeatmap(ruleset, false);
 
         [Test]
-        public void TestTouchInputAfterTouchingComposeArea()
+        public void TestTouchInputPlaceHitCircleDirectly()
         {
             AddStep("tap circle", () => tap(this.ChildrenOfType<EditorRadioButton>().Single(b => b.Button.Label == "HitCircle")));
 
-            // this input is just for interacting with compose area
-            AddStep("tap playfield", () => tap(this.ChildrenOfType<Playfield>().Single()));
-
-            AddStep("move current time", () => InputManager.Key(Key.Right));
-
-            AddStep("tap to place circle", () => tap(this.ChildrenOfType<Playfield>().Single().ToScreenSpace(new Vector2(10, 10))));
+            AddStep("tap to place circle", () => tap(this.ChildrenOfType<Playfield>().Single()));
             AddAssert("circle placed correctly", () =>
             {
                 var circle = (HitCircle)EditorBeatmap.HitObjects.Single(h => h.StartTime == EditorClock.CurrentTimeAccurate);
                 Assert.Multiple(() =>
                 {
-                    Assert.That(circle.Position.X, Is.EqualTo(10f).Within(0.01f));
-                    Assert.That(circle.Position.Y, Is.EqualTo(10f).Within(0.01f));
+                    Assert.That(circle.Position.X, Is.EqualTo(256f).Within(0.01f));
+                    Assert.That(circle.Position.Y, Is.EqualTo(192f).Within(0.01f));
                 });
 
                 return true;
             });
+        }
 
-            AddStep("tap slider", () => tap(this.ChildrenOfType<EditorRadioButton>().Single(b => b.Button.Label == "Slider")));
+        [Test]
+        public void TestTouchInputPlaceCircleAfterTouchingComposeArea()
+        {
+            AddStep("tap circle", () => tap(this.ChildrenOfType<EditorRadioButton>().Single(b => b.Button.Label == "HitCircle")));
 
-            // this input is just for interacting with compose area
             AddStep("tap playfield", () => tap(this.ChildrenOfType<Playfield>().Single()));
+            AddAssert("circle placed", () => EditorBeatmap.HitObjects.Single(h => h.StartTime == EditorClock.CurrentTimeAccurate) is HitCircle);
 
-            AddStep("move current time", () => InputManager.Key(Key.Right));
+            AddStep("move forward", () => InputManager.Key(Key.Right));
+
+            AddStep("tap to place circle", () => tap(this.ChildrenOfType<Playfield>().Single()));
+            AddAssert("circle placed correctly", () =>
+            {
+                var circle = (HitCircle)EditorBeatmap.HitObjects.Single(h => h.StartTime == EditorClock.CurrentTimeAccurate);
+                Assert.Multiple(() =>
+                {
+                    Assert.That(circle.Position.X, Is.EqualTo(256f).Within(0.01f));
+                    Assert.That(circle.Position.Y, Is.EqualTo(192f).Within(0.01f));
+                });
+
+                return true;
+            });
+        }
+
+        [Test]
+        public void TestTouchInputPlaceSliderDirectly()
+        {
+            AddStep("tap slider", () => tap(this.ChildrenOfType<EditorRadioButton>().Single(b => b.Button.Label == "Slider")));
 
             AddStep("hold to draw slider", () => InputManager.BeginTouch(new Touch(TouchSource.Touch1, this.ChildrenOfType<Playfield>().Single().ToScreenSpace(new Vector2(50, 20)))));
             AddStep("drag to draw", () => InputManager.MoveTouchTo(new Touch(TouchSource.Touch1, this.ChildrenOfType<Playfield>().Single().ToScreenSpace(new Vector2(200, 50)))));
             AddAssert("selection not initiated", () => this.ChildrenOfType<DragBox>().All(d => d.State == Visibility.Hidden));
+            AddAssert("blueprint visible", () => this.ChildrenOfType<SliderPlacementBlueprint>().Single().Alpha > 0);
             AddStep("end", () => InputManager.EndTouch(new Touch(TouchSource.Touch1, InputManager.CurrentState.Touch.GetTouchPosition(TouchSource.Touch1)!.Value)));
             AddAssert("slider placed correctly", () =>
             {
@@ -76,12 +96,55 @@ namespace osu.Game.Rulesets.Osu.Tests.Editor
             });
         }
 
-        private void tap(Drawable drawable) => tap(drawable.ScreenSpaceDrawQuad.Centre);
+        [Test]
+        public void TestTouchInputPlaceSliderAfterTouchingComposeArea()
+        {
+            AddStep("tap slider", () => tap(this.ChildrenOfType<EditorRadioButton>().Single(b => b.Button.Label == "Slider")));
+
+            AddStep("tap playfield", () => tap(this.ChildrenOfType<Playfield>().Single()));
+            AddStep("tap and hold another spot", () => hold(this.ChildrenOfType<Playfield>().Single(), new Vector2(50, 0)));
+            AddUntilStep("wait for slider placement", () => EditorBeatmap.HitObjects.SingleOrDefault(h => h.StartTime == EditorClock.CurrentTimeAccurate) is Slider);
+            AddStep("end", () => InputManager.EndTouch(new Touch(TouchSource.Touch1, InputManager.CurrentState.Touch.GetTouchPosition(TouchSource.Touch1)!.Value)));
+
+            AddStep("move forward", () => InputManager.Key(Key.Right));
+
+            AddStep("hold to draw slider", () => InputManager.BeginTouch(new Touch(TouchSource.Touch1, this.ChildrenOfType<Playfield>().Single().ToScreenSpace(new Vector2(50, 20)))));
+            AddStep("drag to draw", () => InputManager.MoveTouchTo(new Touch(TouchSource.Touch1, this.ChildrenOfType<Playfield>().Single().ToScreenSpace(new Vector2(200, 50)))));
+            AddAssert("selection not initiated", () => this.ChildrenOfType<DragBox>().All(d => d.State == Visibility.Hidden));
+            AddAssert("blueprint visible", () => this.ChildrenOfType<SliderPlacementBlueprint>().Single().IsPresent);
+            AddStep("end", () => InputManager.EndTouch(new Touch(TouchSource.Touch1, InputManager.CurrentState.Touch.GetTouchPosition(TouchSource.Touch1)!.Value)));
+            AddAssert("slider placed correctly", () =>
+            {
+                var slider = (Slider)EditorBeatmap.HitObjects.Single(h => h.StartTime == EditorClock.CurrentTimeAccurate);
+                Assert.Multiple(() =>
+                {
+                    Assert.That(slider.Position.X, Is.EqualTo(50f).Within(0.01f));
+                    Assert.That(slider.Position.Y, Is.EqualTo(20f).Within(0.01f));
+                    Assert.That(slider.Path.ControlPoints.Count, Is.EqualTo(2));
+                    Assert.That(slider.Path.ControlPoints[0].Position, Is.EqualTo(Vector2.Zero));
+
+                    // the final position may be slightly off from the mouse position when drawing, account for that.
+                    Assert.That(slider.Path.ControlPoints[1].Position.X, Is.EqualTo(150).Within(5));
+                    Assert.That(slider.Path.ControlPoints[1].Position.Y, Is.EqualTo(30).Within(5));
+                });
+
+                return true;
+            });
+        }
+
+        private void tap(Drawable drawable, Vector2 offset = default) => tap(drawable.ToScreenSpace(drawable.LayoutRectangle.Centre + offset));
 
         private void tap(Vector2 position)
         {
-            InputManager.BeginTouch(new Touch(TouchSource.Touch1, position));
+            hold(position);
             InputManager.EndTouch(new Touch(TouchSource.Touch1, position));
         }
+
+        private void hold(Drawable drawable, Vector2 offset = default) => hold(drawable.ToScreenSpace(drawable.LayoutRectangle.Centre + offset));
+
+        private void hold(Vector2 position)
+        {
+            InputManager.BeginTouch(new Touch(TouchSource.Touch1, position));
+        }
     }
 }

osu.Game.Rulesets.Osu/Difficulty/Evaluators/AimEvaluator.cs

@@ -3,6 +3,7 @@
 
 using System;
 using osu.Game.Rulesets.Difficulty.Preprocessing;
+using osu.Game.Rulesets.Difficulty.Utils;
 using osu.Game.Rulesets.Osu.Difficulty.Preprocessing;
 using osu.Game.Rulesets.Osu.Objects;
 
@@ -33,6 +34,9 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Evaluators
             var osuLastObj = (OsuDifficultyHitObject)current.Previous(0);
             var osuLastLastObj = (OsuDifficultyHitObject)current.Previous(1);
 
+            const int radius = OsuDifficultyHitObject.NORMALISED_RADIUS;
+            const int diameter = OsuDifficultyHitObject.NORMALISED_DIAMETER;
+
             // Calculate the velocity to the current hitobject, which starts with a base distance / time assuming the last object is a hitcircle.
             double currVelocity = osuCurrObj.LazyJumpDistance / osuCurrObj.StrainTime;
 
@@ -77,14 +81,14 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Evaluators
                     wideAngleBonus = calcWideAngleBonus(currAngle);
                     acuteAngleBonus = calcAcuteAngleBonus(currAngle);
 
-                    if (osuCurrObj.StrainTime > 100) // Only buff deltaTime exceeding 300 bpm 1/2.
+                    if (DifficultyCalculationUtils.MillisecondsToBPM(osuCurrObj.StrainTime, 2) < 300) // Only buff deltaTime exceeding 300 bpm 1/2.
                         acuteAngleBonus = 0;
                     else
                     {
                         acuteAngleBonus *= calcAcuteAngleBonus(lastAngle) // Multiply by previous angle, we don't want to buff unless this is a wiggle type pattern.
-                                           * Math.Min(angleBonus, 125 / osuCurrObj.StrainTime) // The maximum velocity we buff is equal to 125 / strainTime
+                                           * Math.Min(angleBonus, diameter * 1.25 / osuCurrObj.StrainTime) // The maximum velocity we buff is equal to 125 / strainTime
                                            * Math.Pow(Math.Sin(Math.PI / 2 * Math.Min(1, (100 - osuCurrObj.StrainTime) / 25)), 2) // scale buff from 150 bpm 1/4 to 200 bpm 1/4
-                                           * Math.Pow(Math.Sin(Math.PI / 2 * (Math.Clamp(osuCurrObj.LazyJumpDistance, 50, 100) - 50) / 50), 2); // Buff distance exceeding 50 (radius) up to 100 (diameter).
+                                           * Math.Pow(Math.Sin(Math.PI / 2 * (Math.Clamp(osuCurrObj.LazyJumpDistance, radius, diameter) - radius) / radius), 2); // Buff distance exceeding radius up to diameter.
                     }
 
                     // Penalize wide angles if they're repeated, reducing the penalty as the lastAngle gets more acute.
@@ -104,7 +108,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Evaluators
                 double distRatio = Math.Pow(Math.Sin(Math.PI / 2 * Math.Abs(prevVelocity - currVelocity) / Math.Max(prevVelocity, currVelocity)), 2);
 
                 // Reward for % distance up to 125 / strainTime for overlaps where velocity is still changing.
-                double overlapVelocityBuff = Math.Min(125 / Math.Min(osuCurrObj.StrainTime, osuLastObj.StrainTime), Math.Abs(prevVelocity - currVelocity));
+                double overlapVelocityBuff = Math.Min(diameter * 1.25 / Math.Min(osuCurrObj.StrainTime, osuLastObj.StrainTime), Math.Abs(prevVelocity - currVelocity));
 
                 velocityChangeBonus = overlapVelocityBuff * distRatio;
 

osu.Game.Rulesets.Osu/Difficulty/Evaluators/RhythmEvaluator.cs

@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using osu.Game.Rulesets.Difficulty.Preprocessing;
+using osu.Game.Rulesets.Difficulty.Utils;
 using osu.Game.Rulesets.Osu.Difficulty.Preprocessing;
 using osu.Game.Rulesets.Osu.Objects;
 
@@ -120,7 +121,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Evaluators
                                 islandCount.Count++;
 
                             // repeated island (ex: triplet -> triplet)
-                            double power = logistic(island.Delta, 2.75, 0.24, 14);
+                            double power = DifficultyCalculationUtils.Logistic(island.Delta, maxValue: 2.75, multiplier: 0.24, midpointOffset: 58.33);
                             effectiveRatio *= Math.Min(3.0 / islandCount.Count, Math.Pow(1.0 / islandCount.Count, power));
 
                             islandCounts[countIndex] = (islandCount.Island, islandCount.Count);
@@ -172,8 +173,6 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Evaluators
             return Math.Sqrt(4 + rhythmComplexitySum * rhythm_overall_multiplier) / 2.0; // produces multiplier that can be applied to strain. range [1, infinity) (not really though)
         }
 
-        private static double logistic(double x, double maxValue, double multiplier, double offset) => (maxValue / (1 + Math.Pow(Math.E, offset - (multiplier * x))));
-
         private class Island : IEquatable<Island>
         {
             private readonly double deltaDifferenceEpsilon;

osu.Game.Rulesets.Osu/Difficulty/Evaluators/SpeedEvaluator.cs

@@ -3,6 +3,7 @@
 
 using System;
 using osu.Game.Rulesets.Difficulty.Preprocessing;
+using osu.Game.Rulesets.Difficulty.Utils;
 using osu.Game.Rulesets.Osu.Difficulty.Preprocessing;
 using osu.Game.Rulesets.Osu.Objects;
 
@@ -10,8 +11,8 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Evaluators
 {
     public static class SpeedEvaluator
     {
-        private const double single_spacing_threshold = 125; // 1.25 circles distance between centers
-        private const double min_speed_bonus = 75; // ~200BPM
+        private const double single_spacing_threshold = OsuDifficultyHitObject.NORMALISED_DIAMETER * 1.25; // 1.25 circles distance between centers
+        private const double min_speed_bonus = 200; // 200 BPM 1/4th
         private const double speed_balancing_factor = 40;
         private const double distance_multiplier = 0.94;
 
@@ -43,8 +44,8 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Evaluators
             double speedBonus = 0.0;
 
             // Add additional scaling bonus for streams/bursts higher than 200bpm
-            if (strainTime < min_speed_bonus)
-                speedBonus = 0.75 * Math.Pow((min_speed_bonus - strainTime) / speed_balancing_factor, 2);
+            if (DifficultyCalculationUtils.MillisecondsToBPM(strainTime) > min_speed_bonus)
+                speedBonus = 0.75 * Math.Pow((DifficultyCalculationUtils.BPMToMilliseconds(min_speed_bonus) - strainTime) / speed_balancing_factor, 2);
 
             double travelDistance = osuPrevObj?.TravelDistance ?? 0;
             double distance = travelDistance + osuCurrObj.MinimumJumpDistance;

osu.Game.Rulesets.Osu/Difficulty/OsuDifficultyCalculator.cs

@@ -48,8 +48,8 @@ namespace osu.Game.Rulesets.Osu.Difficulty
 
             double sliderFactor = aimRating > 0 ? aimRatingNoSliders / aimRating : 1;
 
-            double aimDifficultyStrainCount = ((OsuStrainSkill)skills[0]).CountDifficultStrains();
-            double speedDifficultyStrainCount = ((OsuStrainSkill)skills[2]).CountDifficultStrains();
+            double aimDifficultyStrainCount = ((OsuStrainSkill)skills[0]).CountTopWeightedStrains();
+            double speedDifficultyStrainCount = ((OsuStrainSkill)skills[2]).CountTopWeightedStrains();
 
             if (mods.Any(m => m is OsuModTouchDevice))
             {

osu.Game.Rulesets.Osu/Difficulty/OsuPerformanceCalculator.cs

@@ -59,6 +59,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty
             countMiss = score.Statistics.GetValueOrDefault(HitResult.Miss);
             countSliderEndsDropped = osuAttributes.SliderCount - score.Statistics.GetValueOrDefault(HitResult.SliderTailHit);
             countSliderTickMiss = score.Statistics.GetValueOrDefault(HitResult.LargeTickMiss);
+            effectiveMissCount = countMiss;
 
             if (osuAttributes.SliderCount > 0)
             {
@@ -179,7 +180,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty
                 {
                     // We add tick misses here since they too mean that the player didn't follow the slider properly
                     // We however aren't adding misses here because missing slider heads has a harsh penalty by itself and doesn't mean that the rest of the slider wasn't followed properly
-                    estimateImproperlyFollowedDifficultSliders = Math.Min(countSliderEndsDropped + countSliderTickMiss, estimateDifficultSliders);
+                    estimateImproperlyFollowedDifficultSliders = Math.Clamp(countSliderEndsDropped + countSliderTickMiss, 0, estimateDifficultSliders);
                 }
 
                 double sliderNerfFactor = (1 - attributes.SliderFactor) * Math.Pow(1 - estimateImproperlyFollowedDifficultSliders / estimateDifficultSliders, 3) + attributes.SliderFactor;

osu.Game.Rulesets.Osu/Difficulty/Preprocessing/OsuDifficultyHitObject.cs

@@ -20,6 +20,8 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
         /// </summary>
         public const int NORMALISED_RADIUS = 50; // Change radius to 50 to make 100 the diameter. Easier for mental maths.
 
+        public const int NORMALISED_DIAMETER = NORMALISED_RADIUS * 2;
+
         public const int MIN_DELTA_TIME = 25;
 
         private const float maximum_slider_radius = NORMALISED_RADIUS * 2.4f;

osu.Game.Rulesets.Osu/Difficulty/Skills/Aim.cs

@@ -34,7 +34,6 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Skills
         {
             currentStrain *= strainDecay(current.DeltaTime);
             currentStrain += AimEvaluator.EvaluateDifficultyOf(current, withSliders) * skillMultiplier;
-            ObjectStrains.Add(currentStrain);
 
             return currentStrain;
         }

osu.Game.Rulesets.Osu/Difficulty/Skills/OsuStrainSkill.cs

@@ -23,7 +23,6 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Skills
         /// </summary>
         protected virtual double ReducedStrainBaseline => 0.75;
 
-        protected List<double> ObjectStrains = new List<double>();
         protected double Difficulty;
 
         protected OsuStrainSkill(Mod[] mods)
@@ -60,20 +59,6 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Skills
             return Difficulty;
         }
 
-        /// <summary>
-        /// Returns the number of strains weighted against the top strain.
-        /// The result is scaled by clock rate as it affects the total number of strains.
-        /// </summary>
-        public double CountDifficultStrains()
-        {
-            if (Difficulty == 0)
-                return 0.0;
-
-            double consistentTopStrain = Difficulty / 10; // What would the top strain be if all strain values were identical
-            // Use a weighted sum of all strains. Constants are arbitrary and give nice values
-            return ObjectStrains.Sum(s => 1.1 / (1 + Math.Exp(-10 * (s / consistentTopStrain - 0.88))));
-        }
-
         public static double DifficultyToPerformance(double difficulty) => Math.Pow(5.0 * Math.Max(1.0, difficulty / 0.0675) - 4.0, 3.0) / 100000.0;
     }
 }

osu.Game.Rulesets.Osu/Difficulty/Skills/Speed.cs

@@ -40,7 +40,6 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Skills
             currentRhythm = RhythmEvaluator.EvaluateDifficultyOf(current);
 
             double totalStrain = currentStrain * currentRhythm;
-            ObjectStrains.Add(totalStrain);
 
             return totalStrain;
         }

osu.Game.Rulesets.Osu/Edit/Blueprints/GridPlacementBlueprint.cs

@@ -2,6 +2,7 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using osu.Framework.Allocation;
+using osu.Framework.Graphics.Containers;
 using osu.Framework.Input.Events;
 using osu.Game.Rulesets.Edit;
 using osuTK;
@@ -31,12 +32,7 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints
         public override void EndPlacement(bool commit)
         {
             if (!commit && PlacementActive != PlacementState.Finished)
-            {
-                gridToolboxGroup.StartPosition.Value = originalOrigin;
-                gridToolboxGroup.Spacing.Value = originalSpacing;
-                if (!gridToolboxGroup.GridLinesRotation.Disabled)
-                    gridToolboxGroup.GridLinesRotation.Value = originalRotation;
-            }
+                resetGridState();
 
             base.EndPlacement(commit);
 
@@ -103,6 +99,9 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints
 
         public override void UpdateTimeAndPosition(SnapResult result)
         {
+            if (State.Value == Visibility.Hidden)
+                return;
+
             var pos = ToLocalSpace(result.ScreenSpacePosition);
 
             if (PlacementActive != PlacementState.Active)
@@ -122,5 +121,19 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints
                 }
             }
         }
+
+        protected override void PopOut()
+        {
+            base.PopOut();
+            resetGridState();
+        }
+
+        private void resetGridState()
+        {
+            gridToolboxGroup.StartPosition.Value = originalOrigin;
+            gridToolboxGroup.Spacing.Value = originalSpacing;
+            if (!gridToolboxGroup.GridLinesRotation.Disabled)
+                gridToolboxGroup.GridLinesRotation.Value = originalRotation;
+        }
     }
 }

osu.Game.Rulesets.Osu/Edit/Blueprints/Sliders/SliderPlacementBlueprint.cs

@@ -156,6 +156,13 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders
             return true;
         }
 
+        // this allows sliders to be drawn outside compose area (after starting from a point within the compose area).
+        public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => base.ReceivePositionalInputAt(screenSpacePos) || PlacementActive == PlacementState.Active;
+
+        // ReceivePositionalInputAtSubTree generally always returns true when masking is disabled, but we don't want that,
+        // otherwise a slider path tooltip will be displayed anywhere in the editor (outside compose area).
+        protected override bool ReceivePositionalInputAtSubTree(Vector2 screenSpacePos) => ReceivePositionalInputAt(screenSpacePos);
+
         private void beginNewSegment(PathControlPoint lastPoint)
         {
             segmentStart = lastPoint;

osu.Game.Rulesets.Taiko/Difficulty/Evaluators/ColourEvaluator.cs

@@ -3,6 +3,7 @@
 
 using System;
 using osu.Game.Rulesets.Difficulty.Preprocessing;
+using osu.Game.Rulesets.Difficulty.Utils;
 using osu.Game.Rulesets.Taiko.Difficulty.Preprocessing;
 using osu.Game.Rulesets.Taiko.Difficulty.Preprocessing.Colour;
 using osu.Game.Rulesets.Taiko.Difficulty.Preprocessing.Colour.Data;
@@ -11,26 +12,12 @@ namespace osu.Game.Rulesets.Taiko.Difficulty.Evaluators
 {
     public class ColourEvaluator
     {
-        /// <summary>
-        /// A sigmoid function. It gives a value between (middle - height/2) and (middle + height/2).
-        /// </summary>
-        /// <param name="val">The input value.</param>
-        /// <param name="center">The center of the sigmoid, where the largest gradient occurs and value is equal to middle.</param>
-        /// <param name="width">The radius of the sigmoid, outside of which values are near the minimum/maximum.</param>
-        /// <param name="middle">The middle of the sigmoid output.</param>
-        /// <param name="height">The height of the sigmoid output. This will be equal to max value - min value.</param>
-        private static double sigmoid(double val, double center, double width, double middle, double height)
-        {
-            double sigmoid = Math.Tanh(Math.E * -(val - center) / width);
-            return sigmoid * (height / 2) + middle;
-        }
-
         /// <summary>
         /// Evaluate the difficulty of the first note of a <see cref="MonoStreak"/>.
         /// </summary>
         public static double EvaluateDifficultyOf(MonoStreak monoStreak)
         {
-            return sigmoid(monoStreak.Index, 2, 2, 0.5, 1) * EvaluateDifficultyOf(monoStreak.Parent) * 0.5;
+            return DifficultyCalculationUtils.Logistic(exponent: Math.E * monoStreak.Index - 2 * Math.E) * EvaluateDifficultyOf(monoStreak.Parent) * 0.5;
         }
 
         /// <summary>
@@ -38,7 +25,7 @@ namespace osu.Game.Rulesets.Taiko.Difficulty.Evaluators
         /// </summary>
         public static double EvaluateDifficultyOf(AlternatingMonoPattern alternatingMonoPattern)
         {
-            return sigmoid(alternatingMonoPattern.Index, 2, 2, 0.5, 1) * EvaluateDifficultyOf(alternatingMonoPattern.Parent);
+            return DifficultyCalculationUtils.Logistic(exponent: Math.E * alternatingMonoPattern.Index - 2 * Math.E) * EvaluateDifficultyOf(alternatingMonoPattern.Parent);
         }
 
         /// <summary>
@@ -46,7 +33,7 @@ namespace osu.Game.Rulesets.Taiko.Difficulty.Evaluators
         /// </summary>
         public static double EvaluateDifficultyOf(RepeatingHitPatterns repeatingHitPattern)
         {
-            return 2 * (1 - sigmoid(repeatingHitPattern.RepetitionInterval, 2, 2, 0.5, 1));
+            return 2 * (1 - DifficultyCalculationUtils.Logistic(exponent: Math.E * repeatingHitPattern.RepetitionInterval - 2 * Math.E));
         }
 
         public static double EvaluateDifficultyOf(DifficultyHitObject hitObject)

osu.Game.Rulesets.Taiko/Edit/TaikoSelectionHandler.cs

@@ -54,17 +54,17 @@ namespace osu.Game.Rulesets.Taiko.Edit
 
         public void SetStrongState(bool state)
         {
-            if (SelectedItems.OfType<Hit>().All(h => h.IsStrong == state))
+            if (SelectedItems.OfType<TaikoStrongableHitObject>().All(h => h.IsStrong == state))
                 return;
 
             EditorBeatmap.PerformOnSelection(h =>
             {
-                if (!(h is Hit taikoHit)) return;
+                if (h is not TaikoStrongableHitObject strongable) return;
 
-                if (taikoHit.IsStrong != state)
+                if (strongable.IsStrong != state)
                 {
-                    taikoHit.IsStrong = state;
-                    EditorBeatmap.Update(taikoHit);
+                    strongable.IsStrong = state;
+                    EditorBeatmap.Update(strongable);
                 }
             });
         }

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableDrumRoll.cs

@@ -31,6 +31,9 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
 
         public override Quad ScreenSpaceDrawQuad => MainPiece.Drawable.ScreenSpaceDrawQuad;
 
+        // done strictly for editor purposes.
+        public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => MainPiece.Drawable.ReceivePositionalInputAt(screenSpacePos);
+
         /// <summary>
         /// Rolling number of tick hits. This increases for hits and decreases for misses.
         /// </summary>
@@ -78,6 +81,7 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
         {
             base.RecreatePieces();
             updateColour();
+            Height = HitObject.IsStrong ? TaikoStrongableHitObject.DEFAULT_STRONG_SIZE : TaikoHitObject.DEFAULT_SIZE;
         }
 
         protected override void OnFree()

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableDrumRollTick.cs

@@ -12,6 +12,7 @@ using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.Taiko.Skinning.Default;
 using osu.Game.Skinning;
+using osuTK;
 
 namespace osu.Game.Rulesets.Taiko.Objects.Drawables
 {
@@ -44,6 +45,12 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
             IsFirstTick.Value = HitObject.FirstTick;
         }
 
+        protected override void RecreatePieces()
+        {
+            base.RecreatePieces();
+            Size = new Vector2(HitObject.IsStrong ? TaikoStrongableHitObject.DEFAULT_STRONG_SIZE : TaikoHitObject.DEFAULT_SIZE);
+        }
+
         protected override void CheckForResult(bool userTriggered, double timeOffset)
         {
             if (!userTriggered)

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableHit.cs

@@ -14,6 +14,7 @@ using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.Scoring;
 using osu.Game.Rulesets.Taiko.Skinning.Default;
 using osu.Game.Skinning;
+using osuTK;
 
 namespace osu.Game.Rulesets.Taiko.Objects.Drawables
 {
@@ -63,6 +64,7 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
         {
             updateActionsFromType();
             base.RecreatePieces();
+            Size = new Vector2(HitObject.IsStrong ? TaikoStrongableHitObject.DEFAULT_STRONG_SIZE : TaikoHitObject.DEFAULT_SIZE);
         }
 
         protected override void OnFree()

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableSwell.cs

@@ -19,6 +19,7 @@ using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Taiko.Skinning.Default;
 using osu.Game.Screens.Play;
 using osu.Game.Skinning;
+using osuTK;
 
 namespace osu.Game.Rulesets.Taiko.Objects.Drawables
 {
@@ -34,6 +35,8 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
         /// </summary>
         private const double ring_appear_offset = 100;
 
+        private Vector2 baseSize;
+
         private readonly Container<DrawableSwellTick> ticks;
         private readonly Container bodyContainer;
         private readonly CircularContainer targetRing;
@@ -141,6 +144,12 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
                 Origin = Anchor.Centre,
             });
 
+        protected override void RecreatePieces()
+        {
+            base.RecreatePieces();
+            Size = baseSize = new Vector2(TaikoHitObject.DEFAULT_SIZE);
+        }
+
         protected override void OnFree()
         {
             base.OnFree();
@@ -269,7 +278,7 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
         {
             base.Update();
 
-            Size = BaseSize * Parent!.RelativeChildSize;
+            Size = baseSize * Parent!.RelativeChildSize;
 
             // Make the swell stop at the hit target
             X = Math.Max(0, X);

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableTaikoHitObject.cs

@@ -130,7 +130,6 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
 
         public new TObject HitObject => (TObject)base.HitObject;
 
-        protected Vector2 BaseSize;
         protected SkinnableDrawable MainPiece;
 
         protected DrawableTaikoHitObject([CanBeNull] TObject hitObject)
@@ -152,8 +151,6 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
 
         protected virtual void RecreatePieces()
         {
-            Size = BaseSize = new Vector2(TaikoHitObject.DEFAULT_SIZE);
-
             if (MainPiece != null)
                 Content.Remove(MainPiece, true);
 

osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableTaikoStrongableHitObject.cs

@@ -8,7 +8,6 @@ using osu.Framework.Bindables;
 using osu.Framework.Graphics.Containers;
 using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Objects.Drawables;
-using osuTK;
 
 namespace osu.Game.Rulesets.Taiko.Objects.Drawables
 {
@@ -44,13 +43,6 @@ namespace osu.Game.Rulesets.Taiko.Objects.Drawables
             isStrong.UnbindEvents();
         }
 
-        protected override void RecreatePieces()
-        {
-            base.RecreatePieces();
-            if (HitObject.IsStrong)
-                Size = BaseSize = new Vector2(TaikoStrongableHitObject.DEFAULT_STRONG_SIZE);
-        }
-
         protected override void AddNestedHitObject(DrawableHitObject hitObject)
         {
             base.AddNestedHitObject(hitObject);

osu.Game.Rulesets.Taiko/Skinning/Legacy/LegacyDrumRoll.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
@@ -9,6 +10,7 @@ using osu.Framework.Graphics.Sprites;
 using osu.Framework.Graphics.Textures;
 using osu.Game.Graphics;
 using osu.Game.Skinning;
+using osuTK;
 using osuTK.Graphics;
 
 namespace osu.Game.Rulesets.Taiko.Skinning.Legacy
@@ -19,13 +21,22 @@ namespace osu.Game.Rulesets.Taiko.Skinning.Legacy
         {
             get
             {
-                var headDrawQuad = headCircle.ScreenSpaceDrawQuad;
-                var tailDrawQuad = tailCircle.ScreenSpaceDrawQuad;
+                // the reason why this calculation is so involved is that the head & tail sprites have different sizes/radii.
+                // therefore naively taking the SSDQs of them and making a quad out of them results in a trapezoid shape and not a box.
+                var headCentre = headCircle.ScreenSpaceDrawQuad.Centre;
+                var tailCentre = (tailCircle.ScreenSpaceDrawQuad.TopLeft + tailCircle.ScreenSpaceDrawQuad.BottomLeft) / 2;
 
-                return new Quad(headDrawQuad.TopLeft, tailDrawQuad.TopRight, headDrawQuad.BottomLeft, tailDrawQuad.BottomRight);
+                float headRadius = headCircle.ScreenSpaceDrawQuad.Height / 2;
+                float tailRadius = tailCircle.ScreenSpaceDrawQuad.Height / 2;
+                float radius = Math.Max(headRadius, tailRadius);
+
+                var rectangle = new RectangleF(headCentre.X, headCentre.Y, tailCentre.X - headCentre.X, 0).Inflate(radius);
+                return new Quad(rectangle.TopLeft, rectangle.TopRight, rectangle.BottomLeft, rectangle.BottomRight);
             }
         }
 
+        public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => ScreenSpaceDrawQuad.Contains(screenSpacePos);
+
         private LegacyCirclePiece headCircle = null!;
 
         private Sprite body = null!;

osu.Game.Tests/Beatmaps/Formats/LegacyBeatmapEncoderTest.cs

@@ -120,11 +120,11 @@ namespace osu.Game.Tests.Beatmaps.Formats
         private void compareBeatmaps((IBeatmap beatmap, TestLegacySkin skin) expected, (IBeatmap beatmap, TestLegacySkin skin) actual)
         {
             // Check all control points that are still considered to be at a global level.
-            Assert.That(expected.beatmap.ControlPointInfo.TimingPoints.Serialize(), Is.EqualTo(actual.beatmap.ControlPointInfo.TimingPoints.Serialize()));
-            Assert.That(expected.beatmap.ControlPointInfo.EffectPoints.Serialize(), Is.EqualTo(actual.beatmap.ControlPointInfo.EffectPoints.Serialize()));
+            Assert.That(actual.beatmap.ControlPointInfo.TimingPoints.Serialize(), Is.EqualTo(expected.beatmap.ControlPointInfo.TimingPoints.Serialize()));
+            Assert.That(actual.beatmap.ControlPointInfo.EffectPoints.Serialize(), Is.EqualTo(expected.beatmap.ControlPointInfo.EffectPoints.Serialize()));
 
             // Check all hitobjects.
-            Assert.That(expected.beatmap.HitObjects.Serialize(), Is.EqualTo(actual.beatmap.HitObjects.Serialize()));
+            Assert.That(actual.beatmap.HitObjects.Serialize(), Is.EqualTo(expected.beatmap.HitObjects.Serialize()));
 
             // Check skin.
             Assert.IsTrue(areComboColoursEqual(expected.skin.Configuration, actual.skin.Configuration));

osu.Game.Tests/Editing/TimingSectionAdjustmentsTest.cs

@@ -0,0 +1,161 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System.Collections.Generic;
+using System.Linq;
+using NUnit.Framework;
+using osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Osu.Objects;
+using osu.Game.Screens.Edit.Timing;
+
+namespace osu.Game.Tests.Editing
+{
+    [TestFixture]
+    public class TimingSectionAdjustmentsTest
+    {
+        [Test]
+        public void TestOffsetAdjustment()
+        {
+            var controlPoints = new ControlPointInfo();
+
+            controlPoints.Add(100, new TimingControlPoint { BeatLength = 100 });
+            controlPoints.Add(50_000, new TimingControlPoint { BeatLength = 200 });
+            controlPoints.Add(100_000, new TimingControlPoint { BeatLength = 50 });
+
+            var beatmap = new Beatmap
+            {
+                ControlPointInfo = controlPoints,
+                HitObjects = new List<HitObject>
+                {
+                    new HitCircle { StartTime = 0 },
+                    new HitCircle { StartTime = 200 },
+                    new HitCircle { StartTime = 49_900 },
+                    new HitCircle { StartTime = 50_000 },
+                    new HitCircle { StartTime = 50_200 },
+                    new HitCircle { StartTime = 99_800 },
+                    new HitCircle { StartTime = 100_000 },
+                    new HitCircle { StartTime = 100_050 },
+                    new HitCircle { StartTime = 100_550 },
+                }
+            };
+
+            moveTimingPoint(beatmap, 100, -50);
+
+            Assert.Multiple(() =>
+            {
+                Assert.That(beatmap.HitObjects[0].StartTime, Is.EqualTo(-50));
+                Assert.That(beatmap.HitObjects[1].StartTime, Is.EqualTo(150));
+                Assert.That(beatmap.HitObjects[2].StartTime, Is.EqualTo(49_850));
+                Assert.That(beatmap.HitObjects[3].StartTime, Is.EqualTo(50_000));
+            });
+
+            moveTimingPoint(beatmap, 50_000, 1_000);
+
+            Assert.Multiple(() =>
+            {
+                Assert.That(beatmap.HitObjects[2].StartTime, Is.EqualTo(49_850));
+                Assert.That(beatmap.HitObjects[3].StartTime, Is.EqualTo(51_000));
+                Assert.That(beatmap.HitObjects[4].StartTime, Is.EqualTo(51_200));
+                Assert.That(beatmap.HitObjects[5].StartTime, Is.EqualTo(100_800));
+                Assert.That(beatmap.HitObjects[6].StartTime, Is.EqualTo(100_000));
+            });
+
+            moveTimingPoint(beatmap, 100_000, 10_000);
+
+            Assert.Multiple(() =>
+            {
+                Assert.That(beatmap.HitObjects[4].StartTime, Is.EqualTo(51_200));
+                Assert.That(beatmap.HitObjects[5].StartTime, Is.EqualTo(110_800));
+                Assert.That(beatmap.HitObjects[6].StartTime, Is.EqualTo(110_000));
+                Assert.That(beatmap.HitObjects[7].StartTime, Is.EqualTo(110_050));
+                Assert.That(beatmap.HitObjects[8].StartTime, Is.EqualTo(110_550));
+            });
+        }
+
+        [Test]
+        public void TestBPMAdjustment()
+        {
+            var controlPoints = new ControlPointInfo();
+
+            controlPoints.Add(100, new TimingControlPoint { BeatLength = 100 });
+            controlPoints.Add(50_000, new TimingControlPoint { BeatLength = 200 });
+            controlPoints.Add(100_000, new TimingControlPoint { BeatLength = 50 });
+
+            var beatmap = new Beatmap
+            {
+                ControlPointInfo = controlPoints,
+                HitObjects = new List<HitObject>
+                {
+                    new HitCircle { StartTime = 0 },
+                    new HitCircle { StartTime = 200 },
+                    new Spinner { StartTime = 500, EndTime = 1000 },
+                    new HitCircle { StartTime = 49_900 },
+                    new HitCircle { StartTime = 50_000 },
+                    new HitCircle { StartTime = 50_200 },
+                    new HitCircle { StartTime = 99_800 },
+                    new HitCircle { StartTime = 100_000 },
+                    new HitCircle { StartTime = 100_050 },
+                    new HitCircle { StartTime = 100_550 },
+                }
+            };
+
+            adjustBeatLength(beatmap, 100, 50);
+
+            Assert.Multiple(() =>
+            {
+                Assert.That(beatmap.HitObjects[0].StartTime, Is.EqualTo(50));
+                Assert.That(beatmap.HitObjects[1].StartTime, Is.EqualTo(150));
+                Assert.That(beatmap.HitObjects[2].StartTime, Is.EqualTo(300));
+                Assert.That(beatmap.HitObjects[2].GetEndTime(), Is.EqualTo(550));
+                Assert.That(beatmap.HitObjects[3].StartTime, Is.EqualTo(25_000));
+                Assert.That(beatmap.HitObjects[4].StartTime, Is.EqualTo(50_000));
+            });
+
+            adjustBeatLength(beatmap, 50_000, 400);
+
+            Assert.Multiple(() =>
+            {
+                Assert.That(beatmap.HitObjects[2].StartTime, Is.EqualTo(300));
+                Assert.That(beatmap.HitObjects[2].GetEndTime(), Is.EqualTo(550));
+                Assert.That(beatmap.HitObjects[3].StartTime, Is.EqualTo(25_000));
+                Assert.That(beatmap.HitObjects[4].StartTime, Is.EqualTo(50_000));
+                Assert.That(beatmap.HitObjects[5].StartTime, Is.EqualTo(50_400));
+                Assert.That(beatmap.HitObjects[6].StartTime, Is.EqualTo(149_600));
+                Assert.That(beatmap.HitObjects[7].StartTime, Is.EqualTo(100_000));
+            });
+
+            adjustBeatLength(beatmap, 100_000, 100);
+
+            Assert.Multiple(() =>
+            {
+                Assert.That(beatmap.HitObjects[5].StartTime, Is.EqualTo(50_400));
+                Assert.That(beatmap.HitObjects[6].StartTime, Is.EqualTo(199_200));
+                Assert.That(beatmap.HitObjects[7].StartTime, Is.EqualTo(100_000));
+                Assert.That(beatmap.HitObjects[8].StartTime, Is.EqualTo(100_100));
+                Assert.That(beatmap.HitObjects[9].StartTime, Is.EqualTo(101_100));
+            });
+        }
+
+        private static void moveTimingPoint(IBeatmap beatmap, double originalTime, double adjustment)
+        {
+            var controlPoints = beatmap.ControlPointInfo;
+            var controlPointGroup = controlPoints.GroupAt(originalTime);
+            var timingPoint = controlPointGroup.ControlPoints.OfType<TimingControlPoint>().Single();
+            controlPoints.RemoveGroup(controlPointGroup);
+            TimingSectionAdjustments.AdjustHitObjectOffset(beatmap, timingPoint, adjustment);
+            controlPoints.Add(originalTime - adjustment, timingPoint);
+        }
+
+        private static void adjustBeatLength(IBeatmap beatmap, double groupTime, double newBeatLength)
+        {
+            var controlPoints = beatmap.ControlPointInfo;
+            var controlPointGroup = controlPoints.GroupAt(groupTime);
+            var timingPoint = controlPointGroup.ControlPoints.OfType<TimingControlPoint>().Single();
+            double oldBeatLength = timingPoint.BeatLength;
+            timingPoint.BeatLength = newBeatLength;
+            TimingSectionAdjustments.SetHitObjectBPM(beatmap, timingPoint, oldBeatLength);
+        }
+    }
+}

osu.Game.Tests/Resources/mania-0-01-sv.osu

@@ -0,0 +1,39 @@
+osu file format v14
+
+[General]
+SampleSet: Normal
+StackLeniency: 0.7
+Mode: 3
+
+[Difficulty]
+HPDrainRate:3
+CircleSize:5
+OverallDifficulty:8
+ApproachRate:8
+SliderMultiplier:3.59999990463257
+SliderTickRate:2
+
+[TimingPoints]
+24,352.941176470588,4,1,1,100,1,0
+6376,-10000,4,1,1,100,0,0
+
+[HitObjects]
+51,192,24,1,0,0:0:0:0:
+153,192,200,1,0,0:0:0:0:
+358,192,376,1,0,0:0:0:0:
+460,192,553,1,0,0:0:0:0:
+460,192,729,128,0,1435:0:0:0:0:
+358,192,906,128,0,1612:0:0:0:0:
+256,192,1082,128,0,1788:0:0:0:0:
+153,192,1259,128,0,1965:0:0:0:0:
+51,192,1435,128,0,2141:0:0:0:0:
+51,192,2318,1,12,0:0:0:0:
+153,192,2318,1,4,0:0:0:0:
+256,192,2318,1,6,0:0:0:0:
+358,192,2318,1,14,0:0:0:0:
+460,192,2318,1,0,0:0:0:0:
+51,192,2494,128,0,2582:0:0:0:0:
+153,192,2494,128,14,2582:0:0:0:0:
+256,192,2494,128,6,2582:0:0:0:0:
+358,192,2494,128,4,2582:0:0:0:0:
+460,192,2494,128,12,2582:0:0:0:0:

osu.Game.Tests/Visual/DailyChallenge/TestSceneDailyChallengeIntro.cs

@@ -38,7 +38,7 @@ namespace osu.Game.Tests.Visual.DailyChallenge
             Add(metadataClient);
 
             // add button to observe for daily challenge changes and perform its logic.
-            Add(new DailyChallengeButton(@"button-default-select", new Color4(102, 68, 204, 255), _ => { }, 0, Key.D));
+            Add(new DailyChallengeButton(@"button-default-select", new Color4(102, 68, 204, 255), (_, _) => { }, 0, Key.D));
         }
 
         [Test]

osu.Game.Tests/Visual/Editing/TestSceneHitObjectComposer.cs

@@ -19,6 +19,7 @@ using osu.Game.Rulesets.Objects.Types;
 using osu.Game.Rulesets.Osu;
 using osu.Game.Rulesets.Osu.Edit;
 using osu.Game.Rulesets.Osu.Objects;
+using osu.Game.Rulesets.UI;
 using osu.Game.Screens.Edit;
 using osu.Game.Screens.Edit.Components.RadioButtons;
 using osu.Game.Screens.Edit.Components.TernaryButtons;
@@ -82,6 +83,45 @@ namespace osu.Game.Tests.Visual.Editing
             });
         }
 
+        [Test]
+        public void TestPlacementOutsideComposeScreen()
+        {
+            AddStep("clear all control points and hitobjects", () =>
+            {
+                editorBeatmap.ControlPointInfo.Clear();
+                editorBeatmap.Clear();
+            });
+
+            AddStep("Add timing point", () => editorBeatmap.ControlPointInfo.Add(0, new TimingControlPoint()));
+            AddStep("select circle", () => hitObjectComposer.ChildrenOfType<EditorRadioButton>().First(d => d.Button.Label == "HitCircle").TriggerClick());
+            AddStep("move mouse to compose", () => InputManager.MoveMouseTo(hitObjectComposer.ChildrenOfType<HitObjectContainer>().Single()));
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            AddAssert("circle placed", () => editorBeatmap.HitObjects.Count == 1);
+
+            AddStep("move mouse outside compose", () => InputManager.MoveMouseTo(hitObjectComposer.ChildrenOfType<HitObjectContainer>().Single().ScreenSpaceDrawQuad.TopLeft - new Vector2(0f, 20f)));
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            AddAssert("no circle placed", () => editorBeatmap.HitObjects.Count == 1);
+        }
+
+        [Test]
+        public void TestDragSliderOutsideComposeScreen()
+        {
+            AddStep("clear all control points and hitobjects", () =>
+            {
+                editorBeatmap.ControlPointInfo.Clear();
+                editorBeatmap.Clear();
+            });
+
+            AddStep("Add timing point", () => editorBeatmap.ControlPointInfo.Add(0, new TimingControlPoint()));
+            AddStep("select slider", () => hitObjectComposer.ChildrenOfType<EditorRadioButton>().First(d => d.Button.Label == "Slider").TriggerClick());
+
+            AddStep("move mouse to compose", () => InputManager.MoveMouseTo(hitObjectComposer.ChildrenOfType<HitObjectContainer>().Single()));
+            AddStep("hold", () => InputManager.PressButton(MouseButton.Left));
+            AddStep("move mouse outside compose", () => InputManager.MoveMouseTo(hitObjectComposer.ChildrenOfType<HitObjectContainer>().Single().ScreenSpaceDrawQuad.TopLeft - new Vector2(0f, 80f)));
+            AddStep("release", () => InputManager.ReleaseButton(MouseButton.Left));
+            AddAssert("slider placed", () => editorBeatmap.HitObjects.Count == 1);
+        }
+
         [Test]
         public void TestPlacementOnlyWorksWithTiming()
         {

osu.Game.Tests/Visual/Gameplay/TestSceneGameplayLeaderboard.cs

@@ -155,7 +155,13 @@ namespace osu.Game.Tests.Visual.Gameplay
                 var api = (DummyAPIAccess)API;
 
                 api.Friends.Clear();
-                api.Friends.Add(friend);
+                api.Friends.Add(new APIRelation
+                {
+                    Mutual = true,
+                    RelationType = RelationType.Friend,
+                    TargetID = friend.OnlineID,
+                    TargetUser = friend
+                });
             });
 
             int playerNumber = 1;

osu.Game.Tests/Visual/Multiplayer/TestSceneMatchStartControl.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 using System.Linq;
 using Moq;
@@ -36,15 +34,18 @@ namespace osu.Game.Tests.Visual.Multiplayer
         private readonly Bindable<BeatmapAvailability> beatmapAvailability = new Bindable<BeatmapAvailability>();
         private readonly Bindable<Room> room = new Bindable<Room>();
 
-        private MultiplayerRoom multiplayerRoom;
-        private MultiplayerRoomUser localUser;
-        private OngoingOperationTracker ongoingOperationTracker;
+        private MultiplayerRoom multiplayerRoom = null!;
+        private MultiplayerRoomUser localUser = null!;
+        private OngoingOperationTracker ongoingOperationTracker = null!;
 
-        private PopoverContainer content;
-        private MatchStartControl control;
+        private PopoverContainer content = null!;
+        private MatchStartControl control = null!;
 
         private OsuButton readyButton => control.ChildrenOfType<OsuButton>().Single();
 
+        [Cached(typeof(IBindable<PlaylistItem>))]
+        private readonly Bindable<PlaylistItem> currentItem = new Bindable<PlaylistItem>();
+
         protected override IReadOnlyDependencyContainer CreateChildDependencies(IReadOnlyDependencyContainer parent) =>
             new CachedModelDependencyContainer<Room>(base.CreateChildDependencies(parent)) { Model = { BindTarget = room } };
 
@@ -112,15 +113,15 @@ namespace osu.Game.Tests.Visual.Multiplayer
 
                 beatmapAvailability.Value = BeatmapAvailability.LocallyAvailable();
 
-                var playlistItem = new PlaylistItem(Beatmap.Value.BeatmapInfo)
+                currentItem.Value = new PlaylistItem(Beatmap.Value.BeatmapInfo)
                 {
                     RulesetID = Beatmap.Value.BeatmapInfo.Ruleset.OnlineID
                 };
 
                 room.Value = new Room
                 {
-                    Playlist = { playlistItem },
-                    CurrentPlaylistItem = { Value = playlistItem }
+                    Playlist = { currentItem.Value },
+                    CurrentPlaylistItem = { BindTarget = currentItem }
                 };
 
                 localUser = new MultiplayerRoomUser(API.LocalUser.Value.Id) { User = API.LocalUser.Value };
@@ -129,7 +130,7 @@ namespace osu.Game.Tests.Visual.Multiplayer
                 {
                     Playlist =
                     {
-                        TestMultiplayerClient.CreateMultiplayerPlaylistItem(playlistItem),
+                        TestMultiplayerClient.CreateMultiplayerPlaylistItem(currentItem.Value),
                     },
                     Users = { localUser },
                     Host = localUser,

osu.Game.Tests/Visual/Multiplayer/TestSceneMultiplayerMatchFooter.cs

@@ -1,15 +1,21 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using osu.Framework.Allocation;
+using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Cursor;
+using osu.Game.Online.Rooms;
 using osu.Game.Screens.OnlinePlay.Multiplayer.Match;
 
 namespace osu.Game.Tests.Visual.Multiplayer
 {
     public partial class TestSceneMultiplayerMatchFooter : MultiplayerTestScene
     {
+        [Cached(typeof(IBindable<PlaylistItem>))]
+        private readonly Bindable<PlaylistItem> currentItem = new Bindable<PlaylistItem>();
+
         public override void SetUpSteps()
         {
             base.SetUpSteps();

osu.Game.Tests/Visual/Multiplayer/TestSceneMultiplayerMatchSongSelect.cs

@@ -6,6 +6,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using JetBrains.Annotations;
 using NUnit.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Audio;
@@ -15,6 +16,7 @@ using osu.Framework.Platform;
 using osu.Framework.Screens;
 using osu.Framework.Testing;
 using osu.Game.Beatmaps;
+using osu.Game.Configuration;
 using osu.Game.Database;
 using osu.Game.Online.Rooms;
 using osu.Game.Overlays.Mods;
@@ -42,6 +44,9 @@ namespace osu.Game.Tests.Visual.Multiplayer
 
         private Live<BeatmapSetInfo> importedBeatmapSet;
 
+        [Resolved]
+        private OsuConfigManager configManager { get; set; }
+
         [BackgroundDependencyLoader]
         private void load(GameHost host, AudioManager audio)
         {
@@ -57,10 +62,8 @@ namespace osu.Game.Tests.Visual.Multiplayer
             Add(detachedBeatmapStore);
         }
 
-        public override void SetUpSteps()
+        private void setUp()
         {
-            base.SetUpSteps();
-
             AddStep("reset", () =>
             {
                 Ruleset.Value = new OsuRuleset().RulesetInfo;
@@ -75,6 +78,8 @@ namespace osu.Game.Tests.Visual.Multiplayer
         [Test]
         public void TestSelectFreeMods()
         {
+            setUp();
+
             AddStep("set some freemods", () => songSelect.FreeMods.Value = new OsuRuleset().GetModsFor(ModType.Fun).ToArray());
             AddStep("set all freemods", () => songSelect.FreeMods.Value = new OsuRuleset().CreateAllMods().ToArray());
             AddStep("set no freemods", () => songSelect.FreeMods.Value = Array.Empty<Mod>());
@@ -85,6 +90,8 @@ namespace osu.Game.Tests.Visual.Multiplayer
         {
             BeatmapInfo selectedBeatmap = null;
 
+            setUp();
+
             AddStep("change ruleset", () => Ruleset.Value = new TaikoRuleset().RulesetInfo);
             AddStep("select beatmap",
                 () => songSelect.Carousel.SelectBeatmap(selectedBeatmap = beatmaps.First(beatmap => beatmap.Ruleset.OnlineID == new TaikoRuleset().LegacyID)));
@@ -107,6 +114,8 @@ namespace osu.Game.Tests.Visual.Multiplayer
         [TestCase(typeof(OsuModHidden), typeof(OsuModTraceable))] // Incompatible.
         public void TestAllowedModDeselectedWhenRequired(Type allowedMod, Type requiredMod)
         {
+            setUp();
+
             AddStep("change ruleset", () => Ruleset.Value = new OsuRuleset().RulesetInfo);
             AddStep($"select {allowedMod.ReadableName()} as allowed", () => songSelect.FreeMods.Value = new[] { (Mod)Activator.CreateInstance(allowedMod) });
             AddStep($"select {requiredMod.ReadableName()} as required", () => songSelect.Mods.Value = new[] { (Mod)Activator.CreateInstance(requiredMod) });
@@ -120,6 +129,30 @@ namespace osu.Game.Tests.Visual.Multiplayer
             assertFreeModNotShown(requiredMod);
         }
 
+        [Test]
+        public void TestChangeRulesetImmediatelyAfterLoadComplete()
+        {
+            AddStep("reset", () =>
+            {
+                configManager.SetValue(OsuSetting.ShowConvertedBeatmaps, false);
+                Beatmap.SetDefault();
+                SelectedMods.SetDefault();
+            });
+
+            AddStep("create song select", () =>
+            {
+                SelectedRoom.Value.Playlist.Single().RulesetID = 2;
+                songSelect = new TestMultiplayerMatchSongSelect(SelectedRoom.Value, SelectedRoom.Value.Playlist.Single());
+                songSelect.OnLoadComplete += _ => Ruleset.Value = new TaikoRuleset().RulesetInfo;
+                LoadScreen(songSelect);
+            });
+            AddUntilStep("wait for present", () => songSelect.IsCurrentScreen() && songSelect.BeatmapSetsLoaded);
+
+            AddStep("confirm selection", () => songSelect.FinaliseSelection());
+            AddAssert("beatmap is taiko", () => Beatmap.Value.BeatmapInfo.Ruleset.OnlineID, () => Is.EqualTo(1));
+            AddAssert("ruleset is taiko", () => Ruleset.Value.OnlineID, () => Is.EqualTo(1));
+        }
+
         private void assertFreeModNotShown(Type type)
         {
             AddAssert($"{type.ReadableName()} not displayed in freemod overlay",
@@ -138,8 +171,8 @@ namespace osu.Game.Tests.Visual.Multiplayer
 
             public new BeatmapCarousel Carousel => base.Carousel;
 
-            public TestMultiplayerMatchSongSelect(Room room)
-                : base(room)
+            public TestMultiplayerMatchSongSelect(Room room, [CanBeNull] PlaylistItem itemToEdit = null)
+                : base(room, itemToEdit)
             {
             }
         }

osu.Game.Tests/Visual/Multiplayer/TestSceneMultiplayerPlaylist.cs

@@ -1,13 +1,12 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 using System.Linq;
 using NUnit.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Audio;
+using osu.Framework.Bindables;
 using osu.Framework.Extensions;
 using osu.Framework.Graphics;
 using osu.Framework.Platform;
@@ -29,10 +28,13 @@ namespace osu.Game.Tests.Visual.Multiplayer
 {
     public partial class TestSceneMultiplayerPlaylist : MultiplayerTestScene
     {
-        private MultiplayerPlaylist list;
-        private BeatmapManager beatmaps;
-        private BeatmapSetInfo importedSet;
-        private BeatmapInfo importedBeatmap;
+        [Cached(typeof(IBindable<PlaylistItem>))]
+        private readonly Bindable<PlaylistItem> currentItem = new Bindable<PlaylistItem>();
+
+        private MultiplayerPlaylist list = null!;
+        private BeatmapManager beatmaps = null!;
+        private BeatmapSetInfo importedSet = null!;
+        private BeatmapInfo importedBeatmap = null!;
 
         [BackgroundDependencyLoader]
         private void load(GameHost host, AudioManager audio)
@@ -198,7 +200,7 @@ namespace osu.Game.Tests.Visual.Multiplayer
             addItemStep();
             addItemStep();
 
-            DrawableRoomPlaylistItem[] drawableItems = null;
+            DrawableRoomPlaylistItem[] drawableItems = null!;
             AddStep("get drawable items", () => drawableItems = this.ChildrenOfType<DrawableRoomPlaylistItem>().ToArray());
 
             // Add 1 item for another user.

osu.Game.Tests/Visual/Multiplayer/TestSceneMultiplayerSpectateButton.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System.Linq;
 using NUnit.Framework;
 using osu.Framework.Allocation;
@@ -28,13 +26,14 @@ namespace osu.Game.Tests.Visual.Multiplayer
 {
     public partial class TestSceneMultiplayerSpectateButton : MultiplayerTestScene
     {
-        private MultiplayerSpectateButton spectateButton;
-        private MatchStartControl startControl;
+        [Cached(typeof(IBindable<PlaylistItem>))]
+        private readonly Bindable<PlaylistItem> currentItem = new Bindable<PlaylistItem>();
 
-        private readonly Bindable<PlaylistItem> selectedItem = new Bindable<PlaylistItem>();
+        private MultiplayerSpectateButton spectateButton = null!;
+        private MatchStartControl startControl = null!;
 
-        private BeatmapSetInfo importedSet;
-        private BeatmapManager beatmaps;
+        private BeatmapSetInfo importedSet = null!;
+        private BeatmapManager beatmaps = null!;
 
         [BackgroundDependencyLoader]
         private void load(GameHost host, AudioManager audio)
@@ -52,14 +51,12 @@ namespace osu.Game.Tests.Visual.Multiplayer
 
             AddStep("create button", () =>
             {
-                AvailabilityTracker.SelectedItem.BindTo(selectedItem);
+                AvailabilityTracker.SelectedItem.BindTo(currentItem);
 
                 importedSet = beatmaps.GetAllUsableBeatmapSets().First();
                 Beatmap.Value = beatmaps.GetWorkingBeatmap(importedSet.Beatmaps.First());
-                selectedItem.Value = new PlaylistItem(Beatmap.Value.BeatmapInfo)
-                {
-                    RulesetID = Beatmap.Value.BeatmapInfo.Ruleset.OnlineID,
-                };
+
+                currentItem.Value = SelectedRoom.Value.Playlist.First();
 
                 Child = new PopoverContainer
                 {

osu.Game.Tests/Visual/Online/TestSceneDashboardOverlay.cs

@@ -30,14 +30,20 @@ namespace osu.Game.Tests.Visual.Online
                 if (supportLevel > 3)
                     supportLevel = 0;
 
-                ((DummyAPIAccess)API).Friends.Add(new APIUser
+                ((DummyAPIAccess)API).Friends.Add(new APIRelation
                 {
-                    Username = @"peppy",
-                    Id = 2,
-                    Colour = "99EB47",
-                    CoverUrl = @"https://osu.ppy.sh/images/headers/profile-covers/c3.jpg",
-                    IsSupporter = supportLevel > 0,
-                    SupportLevel = supportLevel
+                    TargetID = 2,
+                    RelationType = RelationType.Friend,
+                    Mutual = true,
+                    TargetUser = new APIUser
+                    {
+                        Username = @"peppy",
+                        Id = 2,
+                        Colour = "99EB47",
+                        CoverUrl = @"https://osu.ppy.sh/images/headers/profile-covers/c3.jpg",
+                        IsSupporter = supportLevel > 0,
+                        SupportLevel = supportLevel
+                    }
                 });
             }
         }

osu.Game.Tests/Visual/Online/TestSceneUserPanel.cs

@@ -55,21 +55,21 @@ namespace osu.Game.Tests.Visual.Online
                     {
                         Username = @"flyte",
                         Id = 3103765,
-                        CoverUrl = @"https://osu.ppy.sh/images/headers/profile-covers/c6.jpg"
+                        CoverUrl = @"https://assets.ppy.sh/user-cover-presets/1/df28696b58541a9e67f6755918951d542d93bdf1da41720fcca2fd2c1ea8cf51.jpeg",
                     }),
                     new UserBrickPanel(new APIUser
                     {
                         Username = @"peppy",
                         Id = 2,
                         Colour = "99EB47",
-                        CoverUrl = @"https://osu.ppy.sh/images/headers/profile-covers/c3.jpg",
+                        CoverUrl = @"https://assets.ppy.sh/user-profile-covers/8195163/4a8e2ad5a02a2642b631438cfa6c6bd7e2f9db289be881cb27df18331f64144c.jpeg",
                     }),
                     new UserGridPanel(new APIUser
                     {
                         Username = @"flyte",
                         Id = 3103765,
                         CountryCode = CountryCode.JP,
-                        CoverUrl = @"https://osu.ppy.sh/images/headers/profile-covers/c6.jpg",
+                        CoverUrl = @"https://assets.ppy.sh/user-cover-presets/1/df28696b58541a9e67f6755918951d542d93bdf1da41720fcca2fd2c1ea8cf51.jpeg",
                         Status = { Value = UserStatus.Online }
                     }) { Width = 300 },
                     boundPanel1 = new UserGridPanel(new APIUser
@@ -77,7 +77,7 @@ namespace osu.Game.Tests.Visual.Online
                         Username = @"peppy",
                         Id = 2,
                         CountryCode = CountryCode.AU,
-                        CoverUrl = @"https://osu.ppy.sh/images/headers/profile-covers/c3.jpg",
+                        CoverUrl = @"https://assets.ppy.sh/user-profile-covers/8195163/4a8e2ad5a02a2642b631438cfa6c6bd7e2f9db289be881cb27df18331f64144c.jpeg",
                         IsSupporter = true,
                         SupportLevel = 3,
                     }) { Width = 300 },
@@ -95,7 +95,7 @@ namespace osu.Game.Tests.Visual.Online
                         Username = @"flyte",
                         Id = 3103765,
                         CountryCode = CountryCode.JP,
-                        CoverUrl = @"https://osu.ppy.sh/images/headers/profile-covers/c6.jpg",
+                        CoverUrl = @"https://assets.ppy.sh/user-cover-presets/1/df28696b58541a9e67f6755918951d542d93bdf1da41720fcca2fd2c1ea8cf51.jpeg",
                         Statistics = new UserStatistics { GlobalRank = 12345, CountryRank = 1234 }
                     }) { Width = 300 },
                     new UserRankPanel(new APIUser
@@ -104,7 +104,7 @@ namespace osu.Game.Tests.Visual.Online
                         Id = 2,
                         Colour = "99EB47",
                         CountryCode = CountryCode.AU,
-                        CoverUrl = @"https://osu.ppy.sh/images/headers/profile-covers/c3.jpg",
+                        CoverUrl = @"https://assets.ppy.sh/user-profile-covers/8195163/4a8e2ad5a02a2642b631438cfa6c6bd7e2f9db289be881cb27df18331f64144c.jpeg",
                         Statistics = new UserStatistics { GlobalRank = null, CountryRank = null }
                     }) { Width = 300 }
                 }
@@ -168,6 +168,14 @@ namespace osu.Game.Tests.Visual.Online
                     CountryRank = RNG.Next(100000)
                 });
             });
+            AddStep("set statistics to something big", () =>
+            {
+                API.UpdateStatistics(new UserStatistics
+                {
+                    GlobalRank = RNG.Next(1_000_000, 100_000_000),
+                    CountryRank = RNG.Next(1_000_000, 100_000_000)
+                });
+            });
             AddStep("set statistics to empty", () =>
             {
                 API.UpdateStatistics(new UserStatistics());

osu.Game.Tests/Visual/Online/TestSceneUserProfileHeader.cs

@@ -3,15 +3,20 @@
 
 using System;
 using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
 using NUnit.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Testing;
 using osu.Game.Configuration;
 using osu.Game.Graphics.Containers;
+using osu.Game.Online.API;
+using osu.Game.Online.API.Requests;
 using osu.Game.Online.API.Requests.Responses;
 using osu.Game.Overlays;
 using osu.Game.Overlays.Profile;
+using osu.Game.Overlays.Profile.Header.Components;
 using osu.Game.Rulesets.Osu;
 using osu.Game.Users;
 
@@ -22,6 +27,10 @@ namespace osu.Game.Tests.Visual.Online
         [Cached]
         private readonly OverlayColourProvider colourProvider = new OverlayColourProvider(OverlayColourScheme.Green);
 
+        private DummyAPIAccess dummyAPI => (DummyAPIAccess)API;
+
+        private readonly ManualResetEventSlim requestLock = new ManualResetEventSlim();
+
         [Resolved]
         private OsuConfigManager configManager { get; set; } = null!;
 
@@ -400,5 +409,97 @@ namespace osu.Game.Tests.Visual.Online
                 }
             }, new OsuRuleset().RulesetInfo));
         }
+
+        private APIUser nonFriend => new APIUser
+        {
+            Id = 727,
+            Username = "Whatever",
+        };
+
+        [Test]
+        public void TestAddFriend()
+        {
+            AddStep("Setup request", () =>
+            {
+                requestLock.Reset();
+
+                dummyAPI.HandleRequest = request =>
+                {
+                    if (request is not AddFriendRequest req)
+                        return false;
+
+                    if (req.TargetId != nonFriend.OnlineID)
+                        return false;
+
+                    var apiRelation = new APIRelation
+                    {
+                        TargetID = nonFriend.OnlineID,
+                        Mutual = true,
+                        RelationType = RelationType.Friend,
+                        TargetUser = nonFriend
+                    };
+
+                    Task.Run(() =>
+                    {
+                        requestLock.Wait(3000);
+                        dummyAPI.Friends.Add(apiRelation);
+                        req.TriggerSuccess(new AddFriendResponse
+                        {
+                            UserRelation = apiRelation
+                        });
+                    });
+
+                    return true;
+                };
+            });
+            AddStep("clear friend list", () => dummyAPI.Friends.Clear());
+            AddStep("Show non-friend user", () => header.User.Value = new UserProfileData(nonFriend, new OsuRuleset().RulesetInfo));
+            AddStep("Click followers button", () => this.ChildrenOfType<FollowersButton>().First().TriggerClick());
+            AddStep("Complete request", () => requestLock.Set());
+            AddUntilStep("Friend added", () => API.Friends.Any(f => f.TargetID == nonFriend.OnlineID));
+        }
+
+        [Test]
+        public void TestAddFriendNonMutual()
+        {
+            AddStep("Setup request", () =>
+            {
+                requestLock.Reset();
+
+                dummyAPI.HandleRequest = request =>
+                {
+                    if (request is not AddFriendRequest req)
+                        return false;
+
+                    if (req.TargetId != nonFriend.OnlineID)
+                        return false;
+
+                    var apiRelation = new APIRelation
+                    {
+                        TargetID = nonFriend.OnlineID,
+                        Mutual = false,
+                        RelationType = RelationType.Friend,
+                        TargetUser = nonFriend
+                    };
+
+                    Task.Run(() =>
+                    {
+                        requestLock.Wait(3000);
+                        dummyAPI.Friends.Add(apiRelation);
+                        req.TriggerSuccess(new AddFriendResponse
+                        {
+                            UserRelation = apiRelation
+                        });
+                    });
+
+                    return true;
+                };
+            });
+            AddStep("clear friend list", () => dummyAPI.Friends.Clear());
+            AddStep("Show non-friend user", () => header.User.Value = new UserProfileData(nonFriend, new OsuRuleset().RulesetInfo));
+            AddStep("Click followers button", () => this.ChildrenOfType<FollowersButton>().First().TriggerClick());
+            AddStep("Complete request", () => requestLock.Set());
+            AddUntilStep("Friend added", () => API.Friends.Any(f => f.TargetID == nonFriend.OnlineID));
+        }
     }
 }

osu.Game.Tests/Visual/SongSelect/TestSceneBeatmapInfoWedge.cs

@@ -1,12 +1,9 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using JetBrains.Annotations;
 using NUnit.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
@@ -23,7 +20,6 @@ using osu.Game.Rulesets.Catch;
 using osu.Game.Rulesets.Mania;
 using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Objects.Legacy;
-using osu.Game.Rulesets.Objects.Types;
 using osu.Game.Rulesets.Osu;
 using osu.Game.Rulesets.Osu.Mods;
 using osu.Game.Rulesets.Taiko;
@@ -35,15 +31,11 @@ namespace osu.Game.Tests.Visual.SongSelect
     [TestFixture]
     public partial class TestSceneBeatmapInfoWedge : OsuTestScene
     {
-        private RulesetStore rulesets;
-        private TestBeatmapInfoWedge infoWedge;
-        private readonly List<IBeatmap> beatmaps = new List<IBeatmap>();
+        [Resolved]
+        private RulesetStore rulesets { get; set; } = null!;
 
-        [BackgroundDependencyLoader]
-        private void load(RulesetStore rulesets)
-        {
-            this.rulesets = rulesets;
-        }
+        private TestBeatmapInfoWedge infoWedge = null!;
+        private readonly List<IBeatmap> beatmaps = new List<IBeatmap>();
 
         protected override void LoadComplete()
         {
@@ -156,7 +148,7 @@ namespace osu.Game.Tests.Visual.SongSelect
             IBeatmap beatmap = createTestBeatmap(new OsuRuleset().RulesetInfo);
             beatmap.ControlPointInfo.Add(0, new TimingControlPoint { BeatLength = 60 * 1000 / bpm });
 
-            OsuModDoubleTime doubleTime = null;
+            OsuModDoubleTime doubleTime = null!;
 
             selectBeatmap(beatmap);
             checkDisplayedBPM($"{bpm}");
@@ -173,7 +165,7 @@ namespace osu.Game.Tests.Visual.SongSelect
         [TestCase(120, 120.4, null, "120")]
         [TestCase(120, 120.6, "DT", "180-182 (mostly 180)")]
         [TestCase(120, 120.4, "DT", "180")]
-        public void TestVaryingBPM(double commonBpm, double otherBpm, string mod, string expectedDisplay)
+        public void TestVaryingBPM(double commonBpm, double otherBpm, string? mod, string expectedDisplay)
         {
             IBeatmap beatmap = createTestBeatmap(new OsuRuleset().RulesetInfo);
             beatmap.ControlPointInfo.Add(0, new TimingControlPoint { BeatLength = 60 * 1000 / commonBpm });
@@ -203,7 +195,7 @@ namespace osu.Game.Tests.Visual.SongSelect
             double drain = beatmap.CalculateDrainLength();
             beatmap.BeatmapInfo.Length = drain;
 
-            OsuModDoubleTime doubleTime = null;
+            OsuModDoubleTime doubleTime = null!;
 
             selectBeatmap(beatmap);
             checkDisplayedLength(drain);
@@ -221,14 +213,15 @@ namespace osu.Game.Tests.Visual.SongSelect
 
             AddUntilStep($"check map drain ({displayedLength})", () =>
             {
-                var label = infoWedge.DisplayedContent.ChildrenOfType<BeatmapInfoWedge.WedgeInfoText.InfoLabel>().Single(l => l.Statistic.Name == BeatmapsetsStrings.ShowStatsTotalLength(displayedLength));
+                var label = infoWedge.DisplayedContent.ChildrenOfType<BeatmapInfoWedge.WedgeInfoText.InfoLabel>()
+                                     .Single(l => l.Statistic.Name == BeatmapsetsStrings.ShowStatsTotalLength(displayedLength));
                 return label.Statistic.Content == displayedLength.ToString();
             });
         }
 
         private void setRuleset(RulesetInfo rulesetInfo)
         {
-            Container containerBefore = null;
+            Container? containerBefore = null;
 
             AddStep("set ruleset", () =>
             {
@@ -242,9 +235,9 @@ namespace osu.Game.Tests.Visual.SongSelect
             AddUntilStep("wait for async load", () => infoWedge.DisplayedContent != containerBefore);
         }
 
-        private void selectBeatmap([CanBeNull] IBeatmap b)
+        private void selectBeatmap(IBeatmap? b)
         {
-            Container containerBefore = null;
+            Container? containerBefore = null;
 
             AddStep($"select {b?.Metadata.Title ?? "null"} beatmap", () =>
             {
@@ -307,11 +300,6 @@ namespace osu.Game.Tests.Visual.SongSelect
             public new WedgeInfoText Info => base.Info;
         }
 
-        private class TestHitObject : ConvertHitObject, IHasPosition
-        {
-            public float X => 0;
-            public float Y => 0;
-            public Vector2 Position { get; } = Vector2.Zero;
-        }
+        private class TestHitObject : ConvertHitObject;
     }
 }

osu.Game.Tests/Visual/SongSelect/TestSceneBeatmapRecommendations.cs

@@ -10,9 +10,12 @@ using System.Linq;
 using NUnit.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Extensions.IEnumerableExtensions;
+using osu.Framework.Platform;
 using osu.Framework.Testing;
 using osu.Game.Beatmaps;
+using osu.Game.Database;
 using osu.Game.Extensions;
+using osu.Game.Online.API;
 using osu.Game.Rulesets;
 using osu.Game.Rulesets.Catch;
 using osu.Game.Rulesets.Mania;
@@ -191,8 +194,39 @@ namespace osu.Game.Tests.Visual.SongSelect
         {
             AddStep("present beatmap", () => Game.PresentBeatmap(getImport()));
 
-            AddUntilStep("wait for song select", () => Game.ScreenStack.CurrentScreen is Screens.Select.SongSelect);
+            AddUntilStep("wait for song select", () => Game.ScreenStack.CurrentScreen is Screens.Select.SongSelect select && select.BeatmapSetsLoaded);
             AddUntilStep("recommended beatmap displayed", () => Game.Beatmap.Value.BeatmapInfo.MatchesOnlineID(getImport().Beatmaps[expectedDiff - 1]));
         }
+
+        protected override TestOsuGame CreateTestGame() => new NoBeatmapUpdateGame(LocalStorage, API);
+
+        private partial class NoBeatmapUpdateGame : TestOsuGame
+        {
+            public NoBeatmapUpdateGame(Storage storage, IAPIProvider api, string[] args = null)
+                : base(storage, api, args)
+            {
+            }
+
+            protected override IBeatmapUpdater CreateBeatmapUpdater() => new TestBeatmapUpdater();
+
+            private class TestBeatmapUpdater : IBeatmapUpdater
+            {
+                public void Queue(Live<BeatmapSetInfo> beatmapSet, MetadataLookupScope lookupScope = MetadataLookupScope.LocalCacheFirst)
+                {
+                }
+
+                public void Process(BeatmapSetInfo beatmapSet, MetadataLookupScope lookupScope = MetadataLookupScope.LocalCacheFirst)
+                {
+                }
+
+                public void ProcessObjectCounts(BeatmapInfo beatmapInfo, MetadataLookupScope lookupScope = MetadataLookupScope.LocalCacheFirst)
+                {
+                }
+
+                public void Dispose()
+                {
+                }
+            }
+        }
     }
 }

osu.Game.Tests/Visual/SongSelectV2/TestSceneBeatmapInfoWedge.cs

@@ -14,9 +14,7 @@ using osu.Game.Beatmaps;
 using osu.Game.Rulesets;
 using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Objects.Legacy;
-using osu.Game.Rulesets.Objects.Types;
 using osu.Game.Screens.Select;
-using osuTK;
 
 namespace osu.Game.Tests.Visual.SongSelectV2
 {
@@ -209,11 +207,6 @@ namespace osu.Game.Tests.Visual.SongSelectV2
             public new WedgeInfoText? Info => base.Info;
         }
 
-        private class TestHitObject : ConvertHitObject, IHasPosition
-        {
-            public float X => 0;
-            public float Y => 0;
-            public Vector2 Position { get; } = Vector2.Zero;
-        }
+        private class TestHitObject : ConvertHitObject;
     }
 }

osu.Game.Tests/Visual/UserInterface/TestSceneBeatmapAttributeText.cs

@@ -159,6 +159,23 @@ namespace osu.Game.Tests.Visual.UserInterface
             AddUntilStep("check star rating is 2", getText, () => Is.EqualTo("Star Rating: 2.00"));
         }
 
+        [Test]
+        public void TestMaxPp()
+        {
+            AddStep("set test ruleset", () => Ruleset.Value = new TestRuleset().RulesetInfo);
+            AddStep("set max pp attribute", () => text.Attribute.Value = BeatmapAttribute.MaxPP);
+            AddAssert("check max pp is 0", getText, () => Is.EqualTo("Max PP: 0"));
+
+            // Adding mod
+            TestMod mod = null!;
+            AddStep("add mod with pp 1", () => SelectedMods.Value = new[] { mod = new TestMod { Performance = { Value = 1 } } });
+            AddUntilStep("check max pp is 1", getText, () => Is.EqualTo("Max PP: 1"));
+
+            // Changing mod setting
+            AddStep("change mod pp to 2", () => mod.Performance.Value = 2);
+            AddUntilStep("check max pp is 2", getText, () => Is.EqualTo("Max PP: 2"));
+        }
+
         private string getText() => text.ChildrenOfType<SpriteText>().Single().Text.ToString();
 
         private class TestRuleset : Ruleset

osu.Game.Tests/Visual/UserInterface/TestSceneButtonSystem.cs

@@ -110,7 +110,7 @@ namespace osu.Game.Tests.Visual.UserInterface
                         break;
 
                     case Key.Q:
-                        buttons.OnExit = action;
+                        buttons.OnExit = _ => action();
                         break;
 
                     case Key.O:

osu.Game.Tests/Visual/UserInterface/TestSceneMainMenuButton.cs

@@ -30,7 +30,7 @@ namespace osu.Game.Tests.Visual.UserInterface
         public void TestStandardButton()
         {
             AddStep("add button", () => Child = new MainMenuButton(
-                ButtonSystemStrings.Solo, @"button-default-select", OsuIcon.Player, new Color4(102, 68, 204, 255), _ => { }, 0, Key.P)
+                ButtonSystemStrings.Solo, @"button-default-select", OsuIcon.Player, new Color4(102, 68, 204, 255), (_, _) => { }, 0, Key.P)
             {
                 Anchor = Anchor.Centre,
                 Origin = Anchor.Centre,
@@ -87,7 +87,7 @@ namespace osu.Game.Tests.Visual.UserInterface
                         Origin = Anchor.Centre,
                         AutoSizeAxes = Axes.Both,
                         CachedDependencies = [(typeof(INotificationOverlay), notificationOverlay)],
-                        Child = new DailyChallengeButton(@"button-default-select", new Color4(102, 68, 204, 255), _ => { }, 0, Key.D)
+                        Child = new DailyChallengeButton(@"button-default-select", new Color4(102, 68, 204, 255), (_, _) => { }, 0, Key.D)
                         {
                             Anchor = Anchor.Centre,
                             Origin = Anchor.Centre,
@@ -161,7 +161,7 @@ namespace osu.Game.Tests.Visual.UserInterface
                         Origin = Anchor.Centre,
                         AutoSizeAxes = Axes.Both,
                         CachedDependencies = [(typeof(INotificationOverlay), notificationOverlay)],
-                        Child = new DailyChallengeButton(@"button-default-select", new Color4(102, 68, 204, 255), _ => { }, 0, Key.D)
+                        Child = new DailyChallengeButton(@"button-default-select", new Color4(102, 68, 204, 255), (_, _) => { }, 0, Key.D)
                         {
                             Anchor = Anchor.Centre,
                             Origin = Anchor.Centre,

osu.Game/Beatmaps/BeatmapDifficultyCache.cs

@@ -4,12 +4,15 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.IO;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using osu.Framework.Allocation;
+using osu.Framework.Audio.Track;
 using osu.Framework.Bindables;
 using osu.Framework.Extensions;
+using osu.Framework.Graphics.Textures;
 using osu.Framework.Lists;
 using osu.Framework.Logging;
 using osu.Framework.Threading;
@@ -18,7 +21,11 @@ using osu.Game.Database;
 using osu.Game.Rulesets;
 using osu.Game.Rulesets.Difficulty;
 using osu.Game.Rulesets.Mods;
+using osu.Game.Rulesets.Scoring;
 using osu.Game.Rulesets.UI;
+using osu.Game.Scoring;
+using osu.Game.Skinning;
+using osu.Game.Storyboards;
 
 namespace osu.Game.Beatmaps
 {
@@ -237,10 +244,37 @@ namespace osu.Game.Beatmaps
                 var ruleset = rulesetInfo.CreateInstance();
                 Debug.Assert(ruleset != null);
 
-                var calculator = ruleset.CreateDifficultyCalculator(beatmapManager.GetWorkingBeatmap(key.BeatmapInfo));
-                var attributes = calculator.Calculate(key.OrderedMods, cancellationToken);
+                PlayableCachedWorkingBeatmap workingBeatmap = new PlayableCachedWorkingBeatmap(beatmapManager.GetWorkingBeatmap(key.BeatmapInfo));
+                IBeatmap playableBeatmap = workingBeatmap.GetPlayableBeatmap(ruleset.RulesetInfo, key.OrderedMods, cancellationToken);
 
-                return new StarDifficulty(attributes);
+                var difficulty = ruleset.CreateDifficultyCalculator(workingBeatmap).Calculate(key.OrderedMods, cancellationToken);
+                cancellationToken.ThrowIfCancellationRequested();
+
+                var performanceCalculator = ruleset.CreatePerformanceCalculator();
+                if (performanceCalculator == null)
+                    return new StarDifficulty(difficulty, new PerformanceAttributes());
+
+                ScoreProcessor scoreProcessor = ruleset.CreateScoreProcessor();
+                scoreProcessor.Mods.Value = key.OrderedMods;
+                scoreProcessor.ApplyBeatmap(playableBeatmap);
+                cancellationToken.ThrowIfCancellationRequested();
+
+                ScoreInfo perfectScore = new ScoreInfo(key.BeatmapInfo, ruleset.RulesetInfo)
+                {
+                    Passed = true,
+                    Accuracy = 1,
+                    Mods = key.OrderedMods,
+                    MaxCombo = scoreProcessor.MaximumCombo,
+                    Combo = scoreProcessor.MaximumCombo,
+                    TotalScore = scoreProcessor.MaximumTotalScore,
+                    Statistics = scoreProcessor.MaximumStatistics,
+                    MaximumStatistics = scoreProcessor.MaximumStatistics
+                };
+
+                var performance = performanceCalculator.Calculate(perfectScore, difficulty);
+                cancellationToken.ThrowIfCancellationRequested();
+
+                return new StarDifficulty(difficulty, performance);
             }
             catch (OperationCanceledException)
             {
@@ -276,7 +310,6 @@ namespace osu.Game.Beatmaps
         {
             public readonly BeatmapInfo BeatmapInfo;
             public readonly RulesetInfo Ruleset;
-
             public readonly Mod[] OrderedMods;
 
             public DifficultyCacheLookup(BeatmapInfo beatmapInfo, RulesetInfo? ruleset, IEnumerable<Mod>? mods)
@@ -317,5 +350,42 @@ namespace osu.Game.Beatmaps
                 CancellationToken = cancellationToken;
             }
         }
+
+        /// <summary>
+        /// A working beatmap that caches its playable representation.
+        /// This is intended as single-use for when it is guaranteed that the playable beatmap can be reused.
+        /// </summary>
+        private class PlayableCachedWorkingBeatmap : IWorkingBeatmap
+        {
+            private readonly IWorkingBeatmap working;
+            private IBeatmap? playable;
+
+            public PlayableCachedWorkingBeatmap(IWorkingBeatmap working)
+            {
+                this.working = working;
+            }
+
+            public IBeatmap GetPlayableBeatmap(IRulesetInfo ruleset, IReadOnlyList<Mod> mods)
+                => playable ??= working.GetPlayableBeatmap(ruleset, mods);
+
+            public IBeatmap GetPlayableBeatmap(IRulesetInfo ruleset, IReadOnlyList<Mod> mods, CancellationToken cancellationToken)
+                => playable ??= working.GetPlayableBeatmap(ruleset, mods, cancellationToken);
+
+            IBeatmapInfo IWorkingBeatmap.BeatmapInfo => working.BeatmapInfo;
+            bool IWorkingBeatmap.BeatmapLoaded => working.BeatmapLoaded;
+            bool IWorkingBeatmap.TrackLoaded => working.TrackLoaded;
+            IBeatmap IWorkingBeatmap.Beatmap => working.Beatmap;
+            Texture IWorkingBeatmap.GetBackground() => working.GetBackground();
+            Texture IWorkingBeatmap.GetPanelBackground() => working.GetPanelBackground();
+            Waveform IWorkingBeatmap.Waveform => working.Waveform;
+            Storyboard IWorkingBeatmap.Storyboard => working.Storyboard;
+            ISkin IWorkingBeatmap.Skin => working.Skin;
+            Track IWorkingBeatmap.Track => working.Track;
+            Track IWorkingBeatmap.LoadTrack() => working.LoadTrack();
+            Stream IWorkingBeatmap.GetStream(string storagePath) => working.GetStream(storagePath);
+            void IWorkingBeatmap.BeginAsyncLoad() => working.BeginAsyncLoad();
+            void IWorkingBeatmap.CancelAsyncLoad() => working.CancelAsyncLoad();
+            void IWorkingBeatmap.PrepareTrackForPreview(bool looping, double offsetFromPreviewPoint) => working.PrepareTrackForPreview(looping, offsetFromPreviewPoint);
+        }
     }
 }

osu.Game/Beatmaps/BeatmapOnlineChangeIngest.cs

@@ -13,11 +13,11 @@ namespace osu.Game.Beatmaps
     /// </summary>
     public partial class BeatmapOnlineChangeIngest : Component
     {
-        private readonly BeatmapUpdater beatmapUpdater;
+        private readonly IBeatmapUpdater beatmapUpdater;
         private readonly RealmAccess realm;
         private readonly MetadataClient metadataClient;
 
-        public BeatmapOnlineChangeIngest(BeatmapUpdater beatmapUpdater, RealmAccess realm, MetadataClient metadataClient)
+        public BeatmapOnlineChangeIngest(IBeatmapUpdater beatmapUpdater, RealmAccess realm, MetadataClient metadataClient)
         {
             this.beatmapUpdater = beatmapUpdater;
             this.realm = realm;

osu.Game/Beatmaps/BeatmapUpdater.cs

@@ -1,7 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-using System;
 using System.Diagnostics;
 using System.Linq;
 using System.Threading.Tasks;
@@ -15,10 +14,7 @@ using osu.Game.Rulesets.Objects.Types;
 
 namespace osu.Game.Beatmaps
 {
-    /// <summary>
-    /// Handles all processing required to ensure a local beatmap is in a consistent state with any changes.
-    /// </summary>
-    public class BeatmapUpdater : IDisposable
+    public class BeatmapUpdater : IBeatmapUpdater
     {
         private readonly IWorkingBeatmapCache workingBeatmapCache;
 
@@ -38,11 +34,6 @@ namespace osu.Game.Beatmaps
             metadataLookup = new BeatmapUpdaterMetadataLookup(api, storage);
         }
 
-        /// <summary>
-        /// Queue a beatmap for background processing.
-        /// </summary>
-        /// <param name="beatmapSet">The managed beatmap set to update. A transaction will be opened to apply changes.</param>
-        /// <param name="lookupScope">The preferred scope to use for metadata lookup.</param>
         public void Queue(Live<BeatmapSetInfo> beatmapSet, MetadataLookupScope lookupScope = MetadataLookupScope.LocalCacheFirst)
         {
             Logger.Log($"Queueing change for local beatmap {beatmapSet}");
@@ -50,55 +41,56 @@ namespace osu.Game.Beatmaps
                 updateScheduler);
         }
 
-        /// <summary>
-        /// Run all processing on a beatmap immediately.
-        /// </summary>
-        /// <param name="beatmapSet">The managed beatmap set to update. A transaction will be opened to apply changes.</param>
-        /// <param name="lookupScope">The preferred scope to use for metadata lookup.</param>
-        public void Process(BeatmapSetInfo beatmapSet, MetadataLookupScope lookupScope = MetadataLookupScope.LocalCacheFirst) => beatmapSet.Realm!.Write(_ =>
+        public void Process(BeatmapSetInfo beatmapSet, MetadataLookupScope lookupScope = MetadataLookupScope.LocalCacheFirst)
         {
-            // Before we use below, we want to invalidate.
-            workingBeatmapCache.Invalidate(beatmapSet);
-
-            if (lookupScope != MetadataLookupScope.None)
-                metadataLookup.Update(beatmapSet, lookupScope == MetadataLookupScope.OnlineFirst);
-
-            foreach (var beatmap in beatmapSet.Beatmaps)
+            beatmapSet.Realm!.Write(_ =>
             {
-                difficultyCache.Invalidate(beatmap);
+                // Before we use below, we want to invalidate.
+                workingBeatmapCache.Invalidate(beatmapSet);
 
-                var working = workingBeatmapCache.GetWorkingBeatmap(beatmap);
-                var ruleset = working.BeatmapInfo.Ruleset.CreateInstance();
+                if (lookupScope != MetadataLookupScope.None)
+                    metadataLookup.Update(beatmapSet, lookupScope == MetadataLookupScope.OnlineFirst);
 
-                Debug.Assert(ruleset != null);
+                foreach (var beatmap in beatmapSet.Beatmaps)
+                {
+                    difficultyCache.Invalidate(beatmap);
 
-                var calculator = ruleset.CreateDifficultyCalculator(working);
+                    var working = workingBeatmapCache.GetWorkingBeatmap(beatmap);
+                    var ruleset = working.BeatmapInfo.Ruleset.CreateInstance();
 
-                beatmap.StarRating = calculator.Calculate().StarRating;
-                beatmap.Length = working.Beatmap.CalculatePlayableLength();
-                beatmap.BPM = 60000 / working.Beatmap.GetMostCommonBeatLength();
-                beatmap.EndTimeObjectCount = working.Beatmap.HitObjects.Count(h => h is IHasDuration);
-                beatmap.TotalObjectCount = working.Beatmap.HitObjects.Count;
-            }
+                    Debug.Assert(ruleset != null);
 
-            // And invalidate again afterwards as re-fetching the most up-to-date database metadata will be required.
-            workingBeatmapCache.Invalidate(beatmapSet);
-        });
+                    var calculator = ruleset.CreateDifficultyCalculator(working);
 
-        public void ProcessObjectCounts(BeatmapInfo beatmapInfo, MetadataLookupScope lookupScope = MetadataLookupScope.LocalCacheFirst) => beatmapInfo.Realm!.Write(_ =>
+                    beatmap.StarRating = calculator.Calculate().StarRating;
+                    beatmap.Length = working.Beatmap.CalculatePlayableLength();
+                    beatmap.BPM = 60000 / working.Beatmap.GetMostCommonBeatLength();
+                    beatmap.EndTimeObjectCount = working.Beatmap.HitObjects.Count(h => h is IHasDuration);
+                    beatmap.TotalObjectCount = working.Beatmap.HitObjects.Count;
+                }
+
+                // And invalidate again afterwards as re-fetching the most up-to-date database metadata will be required.
+                workingBeatmapCache.Invalidate(beatmapSet);
+            });
+        }
+
+        public void ProcessObjectCounts(BeatmapInfo beatmapInfo, MetadataLookupScope lookupScope = MetadataLookupScope.LocalCacheFirst)
         {
-            // Before we use below, we want to invalidate.
-            workingBeatmapCache.Invalidate(beatmapInfo);
+            beatmapInfo.Realm!.Write(_ =>
+            {
+                // Before we use below, we want to invalidate.
+                workingBeatmapCache.Invalidate(beatmapInfo);
 
-            var working = workingBeatmapCache.GetWorkingBeatmap(beatmapInfo);
-            var beatmap = working.Beatmap;
+                var working = workingBeatmapCache.GetWorkingBeatmap(beatmapInfo);
+                var beatmap = working.Beatmap;
 
-            beatmapInfo.EndTimeObjectCount = beatmap.HitObjects.Count(h => h is IHasDuration);
-            beatmapInfo.TotalObjectCount = beatmap.HitObjects.Count;
+                beatmapInfo.EndTimeObjectCount = beatmap.HitObjects.Count(h => h is IHasDuration);
+                beatmapInfo.TotalObjectCount = beatmap.HitObjects.Count;
 
-            // And invalidate again afterwards as re-fetching the most up-to-date database metadata will be required.
-            workingBeatmapCache.Invalidate(beatmapInfo);
-        });
+                // And invalidate again afterwards as re-fetching the most up-to-date database metadata will be required.
+                workingBeatmapCache.Invalidate(beatmapInfo);
+            });
+        }
 
         #region Implementation of IDisposable
 

osu.Game/Beatmaps/Formats/LegacyBeatmapDecoder.cs

@@ -38,8 +38,7 @@ namespace osu.Game.Beatmaps.Formats
         internal static RulesetStore? RulesetStore;
 
         private Beatmap beatmap = null!;
-
-        private ConvertHitObjectParser? parser;
+        private ConvertHitObjectParser parser = null!;
 
         private LegacySampleBank defaultSampleBank;
         private int defaultSampleVolume = 100;
@@ -80,6 +79,7 @@ namespace osu.Game.Beatmaps.Formats
         {
             this.beatmap = beatmap;
             this.beatmap.BeatmapInfo.BeatmapVersion = FormatVersion;
+            parser = new ConvertHitObjectParser(getOffsetTime(), FormatVersion);
 
             applyLegacyDefaults(this.beatmap.BeatmapInfo);
 
@@ -162,7 +162,8 @@ namespace osu.Game.Beatmaps.Formats
         {
             if (hitObject is IHasRepeats hasRepeats)
             {
-                SampleControlPoint sampleControlPoint = (beatmap.ControlPointInfo as LegacyControlPointInfo)?.SamplePointAt(hitObject.StartTime + CONTROL_POINT_LENIENCY + 1) ?? SampleControlPoint.DEFAULT;
+                SampleControlPoint sampleControlPoint = (beatmap.ControlPointInfo as LegacyControlPointInfo)?.SamplePointAt(hitObject.StartTime + CONTROL_POINT_LENIENCY + 1)
+                                                        ?? SampleControlPoint.DEFAULT;
                 hitObject.Samples = hitObject.Samples.Select(o => sampleControlPoint.ApplyTo(o)).ToList();
 
                 for (int i = 0; i < hasRepeats.NodeSamples.Count; i++)
@@ -175,7 +176,8 @@ namespace osu.Game.Beatmaps.Formats
             }
             else
             {
-                SampleControlPoint sampleControlPoint = (beatmap.ControlPointInfo as LegacyControlPointInfo)?.SamplePointAt(hitObject.GetEndTime() + CONTROL_POINT_LENIENCY) ?? SampleControlPoint.DEFAULT;
+                SampleControlPoint sampleControlPoint = (beatmap.ControlPointInfo as LegacyControlPointInfo)?.SamplePointAt(hitObject.GetEndTime() + CONTROL_POINT_LENIENCY)
+                                                        ?? SampleControlPoint.DEFAULT;
                 hitObject.Samples = hitObject.Samples.Select(o => sampleControlPoint.ApplyTo(o)).ToList();
             }
         }
@@ -263,29 +265,7 @@ namespace osu.Game.Beatmaps.Formats
                     break;
 
                 case @"Mode":
-                    int rulesetID = Parsing.ParseInt(pair.Value);
-
-                    beatmap.BeatmapInfo.Ruleset = RulesetStore?.GetRuleset(rulesetID) ?? throw new ArgumentException("Ruleset is not available locally.");
-
-                    switch (rulesetID)
-                    {
-                        case 0:
-                            parser = new Rulesets.Objects.Legacy.Osu.ConvertHitObjectParser(getOffsetTime(), FormatVersion);
-                            break;
-
-                        case 1:
-                            parser = new Rulesets.Objects.Legacy.Taiko.ConvertHitObjectParser(getOffsetTime(), FormatVersion);
-                            break;
-
-                        case 2:
-                            parser = new Rulesets.Objects.Legacy.Catch.ConvertHitObjectParser(getOffsetTime(), FormatVersion);
-                            break;
-
-                        case 3:
-                            parser = new Rulesets.Objects.Legacy.Mania.ConvertHitObjectParser(getOffsetTime(), FormatVersion);
-                            break;
-                    }
-
+                    beatmap.BeatmapInfo.Ruleset = RulesetStore?.GetRuleset(Parsing.ParseInt(pair.Value)) ?? throw new ArgumentException("Ruleset is not available locally.");
                     break;
 
                 case @"LetterboxInBreaks":
@@ -617,17 +597,10 @@ namespace osu.Game.Beatmaps.Formats
 
         private void handleHitObject(string line)
         {
-            // If the ruleset wasn't specified, assume the osu!standard ruleset.
-            parser ??= new Rulesets.Objects.Legacy.Osu.ConvertHitObjectParser(getOffsetTime(), FormatVersion);
-
             var obj = parser.Parse(line);
+            obj.ApplyDefaults(beatmap.ControlPointInfo, beatmap.Difficulty);
 
-            if (obj != null)
-            {
-                obj.ApplyDefaults(beatmap.ControlPointInfo, beatmap.Difficulty);
-
-                beatmap.HitObjects.Add(obj);
-            }
+            beatmap.HitObjects.Add(obj);
         }
 
         private int getOffsetTime(int time) => time + (ApplyOffsets ? offset : 0);

osu.Game/Beatmaps/Formats/LegacyBeatmapEncoder.cs

@@ -183,7 +183,17 @@ namespace osu.Game.Beatmaps.Formats
             if (scrollSpeedEncodedAsSliderVelocity)
             {
                 foreach (var point in legacyControlPoints.EffectPoints)
-                    legacyControlPoints.Add(point.Time, new DifficultyControlPoint { SliderVelocity = point.ScrollSpeed });
+                {
+                    legacyControlPoints.Add(point.Time, new DifficultyControlPoint
+                    {
+                        SliderVelocityBindable =
+                        {
+                            MinValue = point.ScrollSpeedBindable.MinValue,
+                            MaxValue = point.ScrollSpeedBindable.MaxValue,
+                            Value = point.ScrollSpeedBindable.Value,
+                        }
+                    });
+                }
             }
 
             LegacyControlPointProperties lastControlPointProperties = new LegacyControlPointProperties();

osu.Game/Beatmaps/IBeatmapUpdater.cs

@@ -0,0 +1,35 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System;
+using osu.Game.Database;
+
+namespace osu.Game.Beatmaps
+{
+    /// <summary>
+    /// Handles all processing required to ensure a local beatmap is in a consistent state with any changes.
+    /// </summary>
+    public interface IBeatmapUpdater : IDisposable
+    {
+        /// <summary>
+        /// Queue a beatmap for background processing.
+        /// </summary>
+        /// <param name="beatmapSet">The managed beatmap set to update. A transaction will be opened to apply changes.</param>
+        /// <param name="lookupScope">The preferred scope to use for metadata lookup.</param>
+        void Queue(Live<BeatmapSetInfo> beatmapSet, MetadataLookupScope lookupScope = MetadataLookupScope.LocalCacheFirst);
+
+        /// <summary>
+        /// Run all processing on a beatmap immediately.
+        /// </summary>
+        /// <param name="beatmapSet">The managed beatmap set to update. A transaction will be opened to apply changes.</param>
+        /// <param name="lookupScope">The preferred scope to use for metadata lookup.</param>
+        void Process(BeatmapSetInfo beatmapSet, MetadataLookupScope lookupScope = MetadataLookupScope.LocalCacheFirst);
+
+        /// <summary>
+        /// Runs a subset of processing focused on updating any cached beatmap object counts.
+        /// </summary>
+        /// <param name="beatmapInfo">The managed beatmap to update. A transaction will be opened to apply changes.</param>
+        /// <param name="lookupScope">The preferred scope to use for metadata lookup.</param>
+        void ProcessObjectCounts(BeatmapInfo beatmapInfo, MetadataLookupScope lookupScope = MetadataLookupScope.LocalCacheFirst);
+    }
+}

osu.Game/Beatmaps/Legacy/LegacyHitObjectType.cs

@@ -6,7 +6,7 @@ using System;
 namespace osu.Game.Beatmaps.Legacy
 {
     [Flags]
-    internal enum LegacyHitObjectType
+    public enum LegacyHitObjectType
     {
         Circle = 1,
         Slider = 1 << 1,

osu.Game/Beatmaps/StarDifficulty.cs

@@ -1,9 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
-using JetBrains.Annotations;
 using osu.Framework.Utils;
 using osu.Game.Rulesets.Difficulty;
 
@@ -25,30 +22,34 @@ namespace osu.Game.Beatmaps
         /// The difficulty attributes computed for the given beatmap.
         /// Might not be available if the star difficulty is associated with a beatmap that's not locally available.
         /// </summary>
-        [CanBeNull]
-        public readonly DifficultyAttributes Attributes;
+        public readonly DifficultyAttributes? DifficultyAttributes;
 
         /// <summary>
-        /// Creates a <see cref="StarDifficulty"/> structure based on <see cref="DifficultyAttributes"/> computed
-        /// by a <see cref="DifficultyCalculator"/>.
+        /// The performance attributes computed for a perfect score on the given beatmap.
+        /// Might not be available if the star difficulty is associated with a beatmap that's not locally available.
         /// </summary>
-        public StarDifficulty([NotNull] DifficultyAttributes attributes)
+        public readonly PerformanceAttributes? PerformanceAttributes;
+
+        /// <summary>
+        /// Creates a <see cref="StarDifficulty"/> structure.
+        /// </summary>
+        public StarDifficulty(DifficultyAttributes difficulty, PerformanceAttributes performance)
         {
-            Stars = double.IsFinite(attributes.StarRating) ? attributes.StarRating : 0;
-            MaxCombo = attributes.MaxCombo;
-            Attributes = attributes;
+            Stars = double.IsFinite(difficulty.StarRating) ? difficulty.StarRating : 0;
+            MaxCombo = difficulty.MaxCombo;
+            DifficultyAttributes = difficulty;
+            PerformanceAttributes = performance;
             // Todo: Add more members (BeatmapInfo.DifficultyRating? Attributes? Etc...)
         }
 
         /// <summary>
         /// Creates a <see cref="StarDifficulty"/> structure with a pre-populated star difficulty and max combo
-        /// in scenarios where computing <see cref="DifficultyAttributes"/> is not feasible (i.e. when working with online sources).
+        /// in scenarios where computing <see cref="Rulesets.Difficulty.DifficultyAttributes"/> is not feasible (i.e. when working with online sources).
         /// </summary>
         public StarDifficulty(double starDifficulty, int maxCombo)
         {
             Stars = double.IsFinite(starDifficulty) ? starDifficulty : 0;
             MaxCombo = maxCombo;
-            Attributes = null;
         }
 
         public DifficultyRating DifficultyRating => GetDifficultyRating(Stars);

osu.Game/Configuration/OsuConfigManager.cs

@@ -196,6 +196,7 @@ namespace osu.Game.Configuration
             SetDefault(OsuSetting.EditorShowSpeedChanges, false);
             SetDefault(OsuSetting.EditorScaleOrigin, EditorOrigin.GridCentre);
             SetDefault(OsuSetting.EditorRotationOrigin, EditorOrigin.GridCentre);
+            SetDefault(OsuSetting.EditorAdjustExistingObjectsOnTimingChanges, true);
 
             SetDefault(OsuSetting.HideCountryFlags, false);
 
@@ -207,6 +208,7 @@ namespace osu.Game.Configuration
             SetDefault<UserStatus?>(OsuSetting.UserOnlineStatus, null);
 
             SetDefault(OsuSetting.EditorTimelineShowTimingChanges, true);
+            SetDefault(OsuSetting.EditorTimelineShowBreaks, true);
             SetDefault(OsuSetting.EditorTimelineShowTicks, true);
 
             SetDefault(OsuSetting.EditorContractSidebars, false);
@@ -439,6 +441,8 @@ namespace osu.Game.Configuration
         AlwaysShowHoldForMenuButton,
         EditorContractSidebars,
         EditorScaleOrigin,
-        EditorRotationOrigin
+        EditorRotationOrigin,
+        EditorTimelineShowBreaks,
+        EditorAdjustExistingObjectsOnTimingChanges,
     }
 }

osu.Game/Database/BackgroundDataStoreProcessor.cs

@@ -46,7 +46,7 @@ namespace osu.Game.Database
         private RealmAccess realmAccess { get; set; } = null!;
 
         [Resolved]
-        private BeatmapUpdater beatmapUpdater { get; set; } = null!;
+        private IBeatmapUpdater beatmapUpdater { get; set; } = null!;
 
         [Resolved]
         private IBindable<WorkingBeatmap> gameBeatmap { get; set; } = null!;

osu.Game/Localisation/EditorStrings.cs

@@ -39,6 +39,11 @@ namespace osu.Game.Localisation
         /// </summary>
         public static LocalisableString SetPreviewPointToCurrent => new TranslatableString(getKey(@"set_preview_point_to_current"), @"Set preview point to current time");
 
+        /// <summary>
+        /// "Move already placed objects when changing timing"
+        /// </summary>
+        public static LocalisableString AdjustExistingObjectsOnTimingChanges => new TranslatableString(getKey(@"adjust_existing_objects_on_timing_changes"), @"Move already placed objects when changing timing");
+
         /// <summary>
         /// "For editing (.olz)"
         /// </summary>
@@ -139,6 +144,11 @@ namespace osu.Game.Localisation
         /// </summary>
         public static LocalisableString TimelineShowTimingChanges => new TranslatableString(getKey(@"timeline_show_timing_changes"), @"Show timing changes");
 
+        /// <summary>
+        /// "Show breaks"
+        /// </summary>
+        public static LocalisableString TimelineShowBreaks => new TranslatableString(getKey(@"timeline_show_breaks"), @"Show breaks");
+
         /// <summary>
         /// "Show ticks"
         /// </summary>

osu.Game/Localisation/SkinComponents/BeatmapAttributeTextStrings.cs

@@ -12,23 +12,28 @@ namespace osu.Game.Localisation.SkinComponents
         /// <summary>
         /// "Attribute"
         /// </summary>
-        public static LocalisableString Attribute => new TranslatableString(getKey(@"attribute"), "Attribute");
+        public static LocalisableString Attribute => new TranslatableString(getKey(@"attribute"), @"Attribute");
 
         /// <summary>
         /// "The attribute to be displayed."
         /// </summary>
-        public static LocalisableString AttributeDescription => new TranslatableString(getKey(@"attribute_description"), "The attribute to be displayed.");
+        public static LocalisableString AttributeDescription => new TranslatableString(getKey(@"attribute_description"), @"The attribute to be displayed.");
 
         /// <summary>
         /// "Template"
         /// </summary>
-        public static LocalisableString Template => new TranslatableString(getKey(@"template"), "Template");
+        public static LocalisableString Template => new TranslatableString(getKey(@"template"), @"Template");
 
         /// <summary>
         /// "Supports {{Label}} and {{Value}}, but also including arbitrary attributes like {{StarRating}} (see attribute list for supported values)."
         /// </summary>
         public static LocalisableString TemplateDescription => new TranslatableString(getKey(@"template_description"), @"Supports {{Label}} and {{Value}}, but also including arbitrary attributes like {{StarRating}} (see attribute list for supported values).");
 
-        private static string getKey(string key) => $"{prefix}:{key}";
+        /// <summary>
+        /// "Max PP"
+        /// </summary>
+        public static LocalisableString MaxPP => new TranslatableString(getKey(@"max_pp"), @"Max PP");
+
+        private static string getKey(string key) => $@"{prefix}:{key}";
     }
 }

osu.Game/Online/API/APIAccess.cs

@@ -57,7 +57,7 @@ namespace osu.Game.Online.API
         private string password;
 
         public IBindable<APIUser> LocalUser => localUser;
-        public IBindableList<APIUser> Friends => friends;
+        public IBindableList<APIRelation> Friends => friends;
         public IBindable<UserActivity> Activity => activity;
         public IBindable<UserStatistics> Statistics => statistics;
 
@@ -67,7 +67,7 @@ namespace osu.Game.Online.API
 
         private Bindable<APIUser> localUser { get; } = new Bindable<APIUser>(createGuestUser());
 
-        private BindableList<APIUser> friends { get; } = new BindableList<APIUser>();
+        private BindableList<APIRelation> friends { get; } = new BindableList<APIRelation>();
 
         private Bindable<UserActivity> activity { get; } = new Bindable<UserActivity>();
 
@@ -360,19 +360,7 @@ namespace osu.Game.Online.API
                 }
             }
 
-            var friendsReq = new GetFriendsRequest();
-            friendsReq.Failure += _ => state.Value = APIState.Failing;
-            friendsReq.Success += res =>
-            {
-                friends.Clear();
-                friends.AddRange(res);
-            };
-
-            if (!handleRequest(friendsReq))
-            {
-                state.Value = APIState.Failing;
-                return;
-            }
+            UpdateLocalFriends();
 
             // The Success callback event is fired on the main thread, so we should wait for that to run before proceeding.
             // Without this, we will end up circulating this Connecting loop multiple times and queueing up many web requests
@@ -624,6 +612,22 @@ namespace osu.Game.Online.API
                 localUser.Value.Statistics = newStatistics;
         }
 
+        public void UpdateLocalFriends()
+        {
+            if (!IsLoggedIn)
+                return;
+
+            var friendsReq = new GetFriendsRequest();
+            friendsReq.Failure += _ => state.Value = APIState.Failing;
+            friendsReq.Success += res =>
+            {
+                friends.Clear();
+                friends.AddRange(res);
+            };
+
+            Queue(friendsReq);
+        }
+
         private static APIUser createGuestUser() => new GuestUser();
 
         private void setLocalUser(APIUser user) => Scheduler.Add(() =>

osu.Game/Online/API/DummyAPIAccess.cs

@@ -26,7 +26,7 @@ namespace osu.Game.Online.API
             Id = DUMMY_USER_ID,
         });
 
-        public BindableList<APIUser> Friends { get; } = new BindableList<APIUser>();
+        public BindableList<APIRelation> Friends { get; } = new BindableList<APIRelation>();
 
         public Bindable<UserActivity> Activity { get; } = new Bindable<UserActivity>();
 
@@ -201,6 +201,10 @@ namespace osu.Game.Online.API
                 LocalUser.Value.Statistics = newStatistics;
         }
 
+        public void UpdateLocalFriends()
+        {
+        }
+
         public IHubClientConnector? GetHubConnector(string clientName, string endpoint, bool preferMessagePack) => null;
 
         public IChatClient GetChatClient() => new TestChatClientConnector(this);
@@ -214,7 +218,7 @@ namespace osu.Game.Online.API
         public void SetState(APIState newState) => state.Value = newState;
 
         IBindable<APIUser> IAPIProvider.LocalUser => LocalUser;
-        IBindableList<APIUser> IAPIProvider.Friends => Friends;
+        IBindableList<APIRelation> IAPIProvider.Friends => Friends;
         IBindable<UserActivity> IAPIProvider.Activity => Activity;
         IBindable<UserStatistics?> IAPIProvider.Statistics => Statistics;
 

osu.Game/Online/API/IAPIProvider.cs

@@ -22,7 +22,7 @@ namespace osu.Game.Online.API
         /// <summary>
         /// The user's friends.
         /// </summary>
-        IBindableList<APIUser> Friends { get; }
+        IBindableList<APIRelation> Friends { get; }
 
         /// <summary>
         /// The current user's activity.
@@ -134,6 +134,11 @@ namespace osu.Game.Online.API
         /// </summary>
         void UpdateStatistics(UserStatistics newStatistics);
 
+        /// <summary>
+        /// Update the friends status of the current user.
+        /// </summary>
+        void UpdateLocalFriends();
+
         /// <summary>
         /// Schedule a callback to run on the update thread.
         /// </summary>

osu.Game/Online/API/Requests/AddFriendRequest.cs

@@ -0,0 +1,30 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System.Net.Http;
+using osu.Framework.IO.Network;
+
+namespace osu.Game.Online.API.Requests
+{
+    public class AddFriendRequest : APIRequest<AddFriendResponse>
+    {
+        public readonly int TargetId;
+
+        public AddFriendRequest(int targetId)
+        {
+            TargetId = targetId;
+        }
+
+        protected override WebRequest CreateWebRequest()
+        {
+            var req = base.CreateWebRequest();
+
+            req.Method = HttpMethod.Post;
+            req.AddParameter("target", TargetId.ToString(), RequestParameterType.Query);
+
+            return req;
+        }
+
+        protected override string Target => @"friends";
+    }
+}

osu.Game/Online/API/Requests/AddFriendResponse.cs

@@ -0,0 +1,14 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using Newtonsoft.Json;
+using osu.Game.Online.API.Requests.Responses;
+
+namespace osu.Game.Online.API.Requests
+{
+    public class AddFriendResponse
+    {
+        [JsonProperty("user_relation")]
+        public APIRelation UserRelation = null!;
+    }
+}

osu.Game/Online/API/Requests/DeleteFriendRequest.cs

@@ -0,0 +1,27 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System.Net.Http;
+using osu.Framework.IO.Network;
+
+namespace osu.Game.Online.API.Requests
+{
+    public class DeleteFriendRequest : APIRequest
+    {
+        public readonly int TargetId;
+
+        public DeleteFriendRequest(int targetId)
+        {
+            TargetId = targetId;
+        }
+
+        protected override WebRequest CreateWebRequest()
+        {
+            var req = base.CreateWebRequest();
+            req.Method = HttpMethod.Delete;
+            return req;
+        }
+
+        protected override string Target => $@"friends/{TargetId}";
+    }
+}

osu.Game/Online/API/Requests/GetFriendsRequest.cs

@@ -6,7 +6,7 @@ using osu.Game.Online.API.Requests.Responses;
 
 namespace osu.Game.Online.API.Requests
 {
-    public class GetFriendsRequest : APIRequest<List<APIUser>>
+    public class GetFriendsRequest : APIRequest<List<APIRelation>>
     {
         protected override string Target => @"friends";
     }

osu.Game/Online/API/Requests/Responses/APIRelation.cs

@@ -0,0 +1,30 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+
+namespace osu.Game.Online.API.Requests.Responses
+{
+    public class APIRelation
+    {
+        [JsonProperty("target_id")]
+        public int TargetID { get; set; }
+
+        [JsonProperty("relation_type")]
+        public RelationType RelationType { get; set; }
+
+        [JsonProperty("mutual")]
+        public bool Mutual { get; set; }
+
+        [JsonProperty("target")]
+        public APIUser? TargetUser { get; set; }
+    }
+
+    [JsonConverter(typeof(StringEnumConverter))]
+    public enum RelationType
+    {
+        Friend,
+        Block,
+    }
+}

osu.Game/Online/Multiplayer/MultiplayerClient.cs

@@ -202,7 +202,7 @@ namespace osu.Game.Online.Multiplayer
                     Debug.Assert(joinedRoom.Playlist.Count > 0);
 
                     APIRoom.Playlist.Clear();
-                    APIRoom.Playlist.AddRange(joinedRoom.Playlist.Select(createPlaylistItem));
+                    APIRoom.Playlist.AddRange(joinedRoom.Playlist.Select(item => new PlaylistItem(item)));
                     APIRoom.CurrentPlaylistItem.Value = APIRoom.Playlist.Single(item => item.ID == joinedRoom.Settings.PlaylistItemId);
 
                     // The server will null out the end date upon the host joining the room, but the null value is never communicated to the client.
@@ -734,7 +734,7 @@ namespace osu.Game.Online.Multiplayer
                 Debug.Assert(APIRoom != null);
 
                 Room.Playlist.Add(item);
-                APIRoom.Playlist.Add(createPlaylistItem(item));
+                APIRoom.Playlist.Add(new PlaylistItem(item));
 
                 ItemAdded?.Invoke(item);
                 RoomUpdated?.Invoke();
@@ -780,7 +780,7 @@ namespace osu.Game.Online.Multiplayer
                     int existingIndex = APIRoom.Playlist.IndexOf(APIRoom.Playlist.Single(existing => existing.ID == item.ID));
 
                     APIRoom.Playlist.RemoveAt(existingIndex);
-                    APIRoom.Playlist.Insert(existingIndex, createPlaylistItem(item));
+                    APIRoom.Playlist.Insert(existingIndex, new PlaylistItem(item));
                 }
                 catch (Exception ex)
                 {
@@ -853,18 +853,6 @@ namespace osu.Game.Online.Multiplayer
             RoomUpdated?.Invoke();
         }
 
-        private PlaylistItem createPlaylistItem(MultiplayerPlaylistItem item) => new PlaylistItem(new APIBeatmap { OnlineID = item.BeatmapID, StarRating = item.StarRating })
-        {
-            ID = item.ID,
-            OwnerID = item.OwnerID,
-            RulesetID = item.RulesetID,
-            Expired = item.Expired,
-            PlaylistOrder = item.PlaylistOrder,
-            PlayedAt = item.PlayedAt,
-            RequiredMods = item.RequiredMods.ToArray(),
-            AllowedMods = item.AllowedMods.ToArray()
-        };
-
         /// <summary>
         /// For the provided user ID, update whether the user is included in <see cref="CurrentMatchPlayingUserIds"/>.
         /// </summary>

osu.Game/Online/Multiplayer/MultiplayerRoomExtensions.cs

@@ -0,0 +1,39 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System.Collections.Generic;
+using System.Linq;
+using osu.Game.Online.Rooms;
+
+namespace osu.Game.Online.Multiplayer
+{
+    public static class MultiplayerRoomExtensions
+    {
+        /// <summary>
+        /// Returns all historical/expired items from the <paramref name="room"/>, in the order in which they were played.
+        /// </summary>
+        public static IEnumerable<MultiplayerPlaylistItem> GetHistoricalItems(this MultiplayerRoom room)
+            => room.Playlist.Where(item => item.Expired).OrderBy(item => item.PlayedAt);
+
+        /// <summary>
+        /// Returns all non-expired items from the <paramref name="room"/>, in the order in which they are to be played.
+        /// </summary>
+        public static IEnumerable<MultiplayerPlaylistItem> GetUpcomingItems(this MultiplayerRoom room)
+            => room.Playlist.Where(item => !item.Expired).OrderBy(item => item.PlaylistOrder);
+
+        /// <summary>
+        /// Returns the first non-expired <see cref="MultiplayerPlaylistItem"/> in playlist order from the supplied <paramref name="room"/>,
+        /// or the last-played <see cref="MultiplayerPlaylistItem"/> if all items are expired,
+        /// or <see langword="null"/> if <paramref name="room"/> was empty.
+        /// </summary>
+        public static MultiplayerPlaylistItem? GetCurrentItem(this MultiplayerRoom room)
+        {
+            if (room.Playlist.Count == 0)
+                return null;
+
+            return room.Playlist.All(item => item.Expired)
+                ? GetHistoricalItems(room).Last()
+                : GetUpcomingItems(room).First();
+        }
+    }
+}

osu.Game/OsuGameBase.cs

@@ -198,7 +198,7 @@ namespace osu.Game
         public readonly Bindable<Dictionary<ModType, IReadOnlyList<Mod>>> AvailableMods = new Bindable<Dictionary<ModType, IReadOnlyList<Mod>>>(new Dictionary<ModType, IReadOnlyList<Mod>>());
 
         private BeatmapDifficultyCache difficultyCache;
-        private BeatmapUpdater beatmapUpdater;
+        private IBeatmapUpdater beatmapUpdater;
 
         private UserLookupCache userCache;
         private BeatmapLookupCache beatmapCache;
@@ -324,7 +324,7 @@ namespace osu.Game
             base.Content.Add(difficultyCache);
 
             // TODO: OsuGame or OsuGameBase?
-            dependencies.CacheAs(beatmapUpdater = new BeatmapUpdater(BeatmapManager, difficultyCache, API, Storage));
+            dependencies.CacheAs(beatmapUpdater = CreateBeatmapUpdater());
             dependencies.CacheAs(SpectatorClient = new OnlineSpectatorClient(endpoints));
             dependencies.CacheAs(MultiplayerClient = new OnlineMultiplayerClient(endpoints));
             dependencies.CacheAs(metadataClient = new OnlineMetadataClient(endpoints));
@@ -563,6 +563,8 @@ namespace osu.Game
             }
         }
 
+        protected virtual IBeatmapUpdater CreateBeatmapUpdater() => new BeatmapUpdater(BeatmapManager, difficultyCache, API, Storage);
+
         protected override UserInputManager CreateUserInputManager() => new OsuUserInputManager();
 
         protected virtual BatteryInfo CreateBatteryInfo() => null;

osu.Game/Overlays/Dashboard/Friends/FriendDisplay.cs

@@ -49,7 +49,7 @@ namespace osu.Game.Overlays.Dashboard.Friends
         private LoadingLayer loading;
         private BasicSearchTextBox searchTextBox;
 
-        private readonly IBindableList<APIUser> apiFriends = new BindableList<APIUser>();
+        private readonly IBindableList<APIRelation> apiFriends = new BindableList<APIRelation>();
 
         public FriendDisplay()
         {
@@ -177,7 +177,7 @@ namespace osu.Game.Overlays.Dashboard.Friends
             controlBackground.Colour = colourProvider.Background5;
 
             apiFriends.BindTo(api.Friends);
-            apiFriends.BindCollectionChanged((_, _) => Schedule(() => Users = apiFriends.ToList()), true);
+            apiFriends.BindCollectionChanged((_, _) => Schedule(() => Users = apiFriends.Select(f => f.TargetUser).ToList()), true);
         }
 
         protected override void LoadComplete()

osu.Game/Overlays/Profile/Header/Components/FollowersButton.cs

@@ -1,11 +1,21 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System.Linq;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
+using osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
+using osu.Framework.Input.Events;
 using osu.Framework.Localisation;
+using osu.Game.Graphics;
+using osu.Game.Online.API;
+using osu.Game.Online.API.Requests;
+using osu.Game.Online.API.Requests.Responses;
+using osu.Game.Overlays.Notifications;
 using osu.Game.Resources.Localisation.Web;
+using SharpCompress;
 
 namespace osu.Game.Overlays.Profile.Header.Components
 {
@@ -13,15 +23,201 @@ namespace osu.Game.Overlays.Profile.Header.Components
     {
         public readonly Bindable<UserProfileData?> User = new Bindable<UserProfileData?>();
 
-        public override LocalisableString TooltipText => FriendsStrings.ButtonsDisabled;
+        // Because it is impossible to update the number of friends after the operation,
+        // the number of friends obtained is stored and modified locally.
+        private int followerCount;
+
+        public override LocalisableString TooltipText
+        {
+            get
+            {
+                switch (status.Value)
+                {
+                    case FriendStatus.Self:
+                        return FriendsStrings.ButtonsDisabled;
+
+                    case FriendStatus.None:
+                        return FriendsStrings.ButtonsAdd;
+
+                    case FriendStatus.NotMutual:
+                    case FriendStatus.Mutual:
+                        return FriendsStrings.ButtonsRemove;
+                }
+
+                return FriendsStrings.TitleCompact;
+            }
+        }
 
         protected override IconUsage Icon => FontAwesome.Solid.User;
 
+        private readonly IBindableList<APIRelation> apiFriends = new BindableList<APIRelation>();
+        private readonly IBindable<APIUser> localUser = new Bindable<APIUser>();
+
+        private readonly Bindable<FriendStatus> status = new Bindable<FriendStatus>();
+
+        [Resolved]
+        private OsuColour colour { get; set; } = null!;
+
+        [Resolved]
+        private OverlayColourProvider colourProvider { get; set; } = null!;
+
         [BackgroundDependencyLoader]
-        private void load()
+        private void load(IAPIProvider api, INotificationOverlay? notifications)
         {
-            // todo: when friending/unfriending is implemented, the APIAccess.Friends list should be updated accordingly.
-            User.BindValueChanged(user => SetValue(user.NewValue?.User.FollowerCount ?? 0), true);
+            localUser.BindTo(api.LocalUser);
+
+            status.BindValueChanged(_ =>
+            {
+                updateIcon();
+                updateColor();
+            });
+
+            User.BindValueChanged(u =>
+            {
+                followerCount = u.NewValue?.User.FollowerCount ?? 0;
+                updateStatus();
+            }, true);
+
+            apiFriends.BindTo(api.Friends);
+            apiFriends.BindCollectionChanged((_, _) => Schedule(updateStatus));
+
+            Action += () =>
+            {
+                if (User.Value == null)
+                    return;
+
+                if (status.Value == FriendStatus.Self)
+                    return;
+
+                ShowLoadingLayer();
+
+                APIRequest req = status.Value == FriendStatus.None ? new AddFriendRequest(User.Value.User.OnlineID) : new DeleteFriendRequest(User.Value.User.OnlineID);
+
+                req.Success += () =>
+                {
+                    if (req is AddFriendRequest addedRequest)
+                    {
+                        SetValue(++followerCount);
+                        status.Value = addedRequest.Response?.UserRelation.Mutual == true ? FriendStatus.Mutual : FriendStatus.NotMutual;
+                    }
+                    else
+                    {
+                        SetValue(--followerCount);
+                        status.Value = FriendStatus.None;
+                    }
+
+                    api.UpdateLocalFriends();
+                    HideLoadingLayer();
+                };
+
+                req.Failure += e =>
+                {
+                    notifications?.Post(new SimpleNotification
+                    {
+                        Text = e.Message,
+                        Icon = FontAwesome.Solid.Times,
+                    });
+
+                    HideLoadingLayer();
+                };
+
+                api.Queue(req);
+            };
+        }
+
+        protected override bool OnHover(HoverEvent e)
+        {
+            if (status.Value > FriendStatus.None)
+            {
+                SetIcon(FontAwesome.Solid.UserTimes);
+            }
+
+            return base.OnHover(e);
+        }
+
+        protected override void OnHoverLost(HoverLostEvent e)
+        {
+            base.OnHoverLost(e);
+
+            updateIcon();
+        }
+
+        private void updateStatus()
+        {
+            SetValue(followerCount);
+
+            if (localUser.Value.OnlineID == User.Value?.User.OnlineID)
+            {
+                status.Value = FriendStatus.Self;
+                return;
+            }
+
+            var friend = apiFriends.FirstOrDefault(u => User.Value?.User.OnlineID == u.TargetID);
+
+            if (friend != null)
+            {
+                status.Value = friend.Mutual ? FriendStatus.Mutual : FriendStatus.NotMutual;
+            }
+            else
+            {
+                status.Value = FriendStatus.None;
+            }
+        }
+
+        private void updateIcon()
+        {
+            switch (status.Value)
+            {
+                case FriendStatus.Self:
+                    SetIcon(FontAwesome.Solid.User);
+                    break;
+
+                case FriendStatus.None:
+                    SetIcon(FontAwesome.Solid.UserPlus);
+                    break;
+
+                case FriendStatus.NotMutual:
+                    SetIcon(FontAwesome.Solid.User);
+                    break;
+
+                case FriendStatus.Mutual:
+                    SetIcon(FontAwesome.Solid.UserFriends);
+                    break;
+            }
+        }
+
+        private void updateColor()
+        {
+            // https://github.com/ppy/osu-web/blob/0a5367a4a68a6cdf450eb483251b3cf03b3ac7d2/resources/css/bem/user-action-button.less
+
+            switch (status.Value)
+            {
+                case FriendStatus.Self:
+                case FriendStatus.None:
+                    IdleColour = colourProvider.Background6;
+                    HoverColour = colourProvider.Background5;
+                    break;
+
+                case FriendStatus.NotMutual:
+                    IdleColour = colour.Green.Opacity(0.7f);
+                    HoverColour = IdleColour.Lighten(0.1f);
+                    break;
+
+                case FriendStatus.Mutual:
+                    IdleColour = colour.Pink.Opacity(0.7f);
+                    HoverColour = IdleColour.Lighten(0.1f);
+                    break;
+            }
+
+            EffectTargets.ForEach(d => d.FadeColour(IsHovered ? HoverColour : IdleColour, FADE_DURATION, Easing.OutQuint));
+        }
+
+        private enum FriendStatus
+        {
+            Self,
+            None,
+            NotMutual,
+            Mutual,
         }
     }
 }

osu.Game/Overlays/Profile/Header/Components/ProfileHeaderButton.cs

@@ -7,6 +7,7 @@ using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Game.Graphics.Containers;
+using osu.Game.Graphics.UserInterface;
 
 namespace osu.Game.Overlays.Profile.Header.Components
 {
@@ -14,6 +15,7 @@ namespace osu.Game.Overlays.Profile.Header.Components
     {
         private readonly Box background;
         private readonly Container content;
+        private readonly LoadingLayer loading;
 
         protected override Container<Drawable> Content => content;
 
@@ -40,11 +42,22 @@ namespace osu.Game.Overlays.Profile.Header.Components
                         AutoSizeAxes = Axes.X,
                         RelativeSizeAxes = Axes.Y,
                         Padding = new MarginPadding { Horizontal = 10 },
-                    }
+                    },
+                    loading = new LoadingLayer(true, false)
                 }
             });
         }
 
+        protected void ShowLoadingLayer()
+        {
+            loading.Show();
+        }
+
+        protected void HideLoadingLayer()
+        {
+            loading.Hide();
+        }
+
         [BackgroundDependencyLoader]
         private void load(OverlayColourProvider colourProvider)
         {

osu.Game/Overlays/Profile/Header/Components/ProfileHeaderStatisticsButton.cs

@@ -14,6 +14,7 @@ namespace osu.Game.Overlays.Profile.Header.Components
     public abstract partial class ProfileHeaderStatisticsButton : ProfileHeaderButton
     {
         private readonly OsuSpriteText drawableText;
+        private readonly Container iconContainer;
 
         protected ProfileHeaderStatisticsButton()
         {
@@ -26,13 +27,11 @@ namespace osu.Game.Overlays.Profile.Header.Components
                 Direction = FillDirection.Horizontal,
                 Children = new Drawable[]
                 {
-                    new SpriteIcon
+                    iconContainer = new Container
                     {
                         Anchor = Anchor.CentreLeft,
                         Origin = Anchor.CentreLeft,
-                        Icon = Icon,
-                        FillMode = FillMode.Fit,
-                        Size = new Vector2(50, 14)
+                        AutoSizeAxes = Axes.Both,
                     },
                     drawableText = new OsuSpriteText
                     {
@@ -43,10 +42,24 @@ namespace osu.Game.Overlays.Profile.Header.Components
                     }
                 }
             };
+
+            SetIcon(Icon);
         }
 
         protected abstract IconUsage Icon { get; }
 
+        protected void SetIcon(IconUsage icon)
+        {
+            iconContainer.Child = new SpriteIcon
+            {
+                Anchor = Anchor.CentreLeft,
+                Origin = Anchor.CentreLeft,
+                Icon = icon,
+                FillMode = FillMode.Fit,
+                Size = new Vector2(50, 14)
+            };
+        }
+
         protected void SetValue(int value) => drawableText.Text = value.ToLocalisableString("#,##0");
     }
 }

osu.Game/Overlays/Toolbar/ToolbarRulesetSelector.cs

@@ -122,7 +122,10 @@ namespace osu.Game.Overlays.Toolbar
 
             rulesetSelectionChannel[r.NewValue] = channel;
             channel.Play();
-            musicController?.DuckMomentarily(500, new DuckParameters { DuckDuration = 0 });
+
+            // Longer unduck delay for Mania sample
+            int unduckDelay = r.NewValue.OnlineID == 3 ? 750 : 500;
+            musicController?.DuckMomentarily(unduckDelay, new DuckParameters { DuckDuration = 0 });
         }
 
         public override bool HandleNonPositionalInput => !Current.Disabled && base.HandleNonPositionalInput;

osu.Game/Rulesets/Difficulty/PerformanceBreakdownCalculator.cs

@@ -1,121 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-#nullable disable
-
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading;
-using System.Threading.Tasks;
-using JetBrains.Annotations;
-using osu.Framework.Extensions.ObjectExtensions;
-using osu.Game.Beatmaps;
-using osu.Game.Rulesets.Mods;
-using osu.Game.Rulesets.Objects;
-using osu.Game.Rulesets.Scoring;
-using osu.Game.Scoring;
-
-namespace osu.Game.Rulesets.Difficulty
-{
-    public class PerformanceBreakdownCalculator
-    {
-        private readonly IBeatmap playableBeatmap;
-        private readonly BeatmapDifficultyCache difficultyCache;
-
-        public PerformanceBreakdownCalculator(IBeatmap playableBeatmap, BeatmapDifficultyCache difficultyCache)
-        {
-            this.playableBeatmap = playableBeatmap;
-            this.difficultyCache = difficultyCache;
-        }
-
-        [ItemCanBeNull]
-        public async Task<PerformanceBreakdown> CalculateAsync(ScoreInfo score, CancellationToken cancellationToken = default)
-        {
-            var attributes = await difficultyCache.GetDifficultyAsync(score.BeatmapInfo!, score.Ruleset, score.Mods, cancellationToken).ConfigureAwait(false);
-
-            var performanceCalculator = score.Ruleset.CreateInstance().CreatePerformanceCalculator();
-
-            // Performance calculation requires the beatmap and ruleset to be locally available. If not, return a default value.
-            if (attributes?.Attributes == null || performanceCalculator == null)
-                return null;
-
-            cancellationToken.ThrowIfCancellationRequested();
-
-            PerformanceAttributes[] performanceArray = await Task.WhenAll(
-                // compute actual performance
-                performanceCalculator.CalculateAsync(score, attributes.Value.Attributes, cancellationToken),
-                // compute performance for perfect play
-                getPerfectPerformance(score, cancellationToken)
-            ).ConfigureAwait(false);
-
-            return new PerformanceBreakdown(performanceArray[0] ?? new PerformanceAttributes(), performanceArray[1] ?? new PerformanceAttributes());
-        }
-
-        [ItemCanBeNull]
-        private Task<PerformanceAttributes> getPerfectPerformance(ScoreInfo score, CancellationToken cancellationToken = default)
-        {
-            return Task.Run(async () =>
-            {
-                Ruleset ruleset = score.Ruleset.CreateInstance();
-                ScoreInfo perfectPlay = score.DeepClone();
-                perfectPlay.Accuracy = 1;
-                perfectPlay.Passed = true;
-
-                // calculate max combo
-                // todo: Get max combo from difficulty calculator instead when diffcalc properly supports lazer-first scores
-                perfectPlay.MaxCombo = calculateMaxCombo(playableBeatmap);
-
-                // create statistics assuming all hit objects have perfect hit result
-                var statistics = playableBeatmap.HitObjects
-                                                .SelectMany(getPerfectHitResults)
-                                                .GroupBy(hr => hr, (hr, list) => (hitResult: hr, count: list.Count()))
-                                                .ToDictionary(pair => pair.hitResult, pair => pair.count);
-                perfectPlay.Statistics = statistics;
-                perfectPlay.MaximumStatistics = statistics;
-
-                // calculate total score
-                ScoreProcessor scoreProcessor = ruleset.CreateScoreProcessor();
-                scoreProcessor.Mods.Value = perfectPlay.Mods;
-                scoreProcessor.ApplyBeatmap(playableBeatmap);
-                perfectPlay.TotalScore = scoreProcessor.MaximumTotalScore;
-
-                // compute rank achieved
-                // default to SS, then adjust the rank with mods
-                perfectPlay.Rank = ScoreRank.X;
-
-                foreach (IApplicableToScoreProcessor mod in perfectPlay.Mods.OfType<IApplicableToScoreProcessor>())
-                {
-                    perfectPlay.Rank = mod.AdjustRank(perfectPlay.Rank, 1);
-                }
-
-                // calculate performance for this perfect score
-                var difficulty = await difficultyCache.GetDifficultyAsync(
-                    playableBeatmap.BeatmapInfo,
-                    score.Ruleset,
-                    score.Mods,
-                    cancellationToken
-                ).ConfigureAwait(false);
-
-                var performanceCalculator = ruleset.CreatePerformanceCalculator();
-
-                if (performanceCalculator == null || difficulty == null)
-                    return null;
-
-                return await performanceCalculator.CalculateAsync(perfectPlay, difficulty.Value.Attributes.AsNonNull(), cancellationToken).ConfigureAwait(false);
-            }, cancellationToken);
-        }
-
-        private int calculateMaxCombo(IBeatmap beatmap)
-        {
-            return beatmap.HitObjects.SelectMany(getPerfectHitResults).Count(r => r.AffectsCombo());
-        }
-
-        private IEnumerable<HitResult> getPerfectHitResults(HitObject hitObject)
-        {
-            foreach (HitObject nested in hitObject.NestedHitObjects)
-                yield return nested.Judgement.MaxResult;
-
-            yield return hitObject.Judgement.MaxResult;
-        }
-    }
-}

osu.Game/Rulesets/Difficulty/Skills/StrainSkill.cs

@@ -26,10 +26,10 @@ namespace osu.Game.Rulesets.Difficulty.Skills
         protected virtual int SectionLength => 400;
 
         private double currentSectionPeak; // We also keep track of the peak strain level in the current section.
-
         private double currentSectionEnd;
 
         private readonly List<double> strainPeaks = new List<double>();
+        protected readonly List<double> ObjectStrains = new List<double>(); // Store individual strains
 
         protected StrainSkill(Mod[] mods)
             : base(mods)
@@ -57,7 +57,25 @@ namespace osu.Game.Rulesets.Difficulty.Skills
                 currentSectionEnd += SectionLength;
             }
 
-            currentSectionPeak = Math.Max(StrainValueAt(current), currentSectionPeak);
+            double strain = StrainValueAt(current);
+            currentSectionPeak = Math.Max(strain, currentSectionPeak);
+
+            // Store the strain value for the object
+            ObjectStrains.Add(strain);
+        }
+
+        /// <summary>
+        /// Calculates the number of strains weighted against the top strain.
+        /// The result is scaled by clock rate as it affects the total number of strains.
+        /// </summary>
+        public virtual double CountTopWeightedStrains()
+        {
+            if (ObjectStrains.Count == 0)
+                return 0.0;
+
+            double consistentTopStrain = DifficultyValue() / 10; // What would the top strain be if all strain values were identical
+            // Use a weighted sum of all strains. Constants are arbitrary and give nice values
+            return ObjectStrains.Sum(s => 1.1 / (1 + Math.Exp(-10 * (s / consistentTopStrain - 0.88))));
         }
 
         /// <summary>

osu.Game/Rulesets/Difficulty/Utils/DifficultyCalculationUtils.cs

@@ -0,0 +1,50 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System;
+
+namespace osu.Game.Rulesets.Difficulty.Utils
+{
+    public static class DifficultyCalculationUtils
+    {
+        /// <summary>
+        /// Converts BPM value into milliseconds
+        /// </summary>
+        /// <param name="bpm">Beats per minute</param>
+        /// <param name="delimiter">Which rhythm delimiter to use, default is 1/4</param>
+        /// <returns>BPM conveted to milliseconds</returns>
+        public static double BPMToMilliseconds(double bpm, int delimiter = 4)
+        {
+            return 60000.0 / delimiter / bpm;
+        }
+
+        /// <summary>
+        /// Converts milliseconds value into a BPM value
+        /// </summary>
+        /// <param name="ms">Milliseconds</param>
+        /// <param name="delimiter">Which rhythm delimiter to use, default is 1/4</param>
+        /// <returns>Milliseconds conveted to beats per minute</returns>
+        public static double MillisecondsToBPM(double ms, int delimiter = 4)
+        {
+            return 60000.0 / (ms * delimiter);
+        }
+
+        /// <summary>
+        /// Calculates a S-shaped logistic function (https://en.wikipedia.org/wiki/Logistic_function)
+        /// </summary>
+        /// <param name="x">Value to calculate the function for</param>
+        /// <param name="maxValue">Maximum value returnable by the function</param>
+        /// <param name="multiplier">Growth rate of the function</param>
+        /// <param name="midpointOffset">How much the function midpoint is offset from zero <paramref name="x"/></param>
+        /// <returns>The output of logistic function of <paramref name="x"/></returns>
+        public static double Logistic(double x, double midpointOffset, double multiplier, double maxValue = 1) => maxValue / (1 + Math.Exp(multiplier * (midpointOffset - x)));
+
+        /// <summary>
+        /// Calculates a S-shaped logistic function (https://en.wikipedia.org/wiki/Logistic_function)
+        /// </summary>
+        /// <param name="maxValue">Maximum value returnable by the function</param>
+        /// <param name="exponent">Exponent</param>
+        /// <returns>The output of logistic function</returns>
+        public static double Logistic(double exponent, double maxValue = 1) => maxValue / (1 + Math.Exp(exponent));
+    }
+}

osu.Game/Rulesets/Edit/HitObjectComposer.cs

@@ -537,22 +537,23 @@ namespace osu.Game.Rulesets.Edit
 
         #region IPlacementHandler
 
-        public void BeginPlacement(HitObject hitObject)
+        public void ShowPlacement(HitObject hitObject)
         {
             EditorBeatmap.PlacementObject.Value = hitObject;
         }
 
-        public void EndPlacement(HitObject hitObject, bool commit)
+        public void HidePlacement()
         {
             EditorBeatmap.PlacementObject.Value = null;
+        }
 
-            if (commit)
-            {
-                EditorBeatmap.Add(hitObject);
+        public void CommitPlacement(HitObject hitObject)
+        {
+            EditorBeatmap.PlacementObject.Value = null;
+            EditorBeatmap.Add(hitObject);
 
-                if (autoSeekOnPlacement.Value && EditorClock.CurrentTime < hitObject.StartTime)
-                    EditorClock.SeekSmoothlyTo(hitObject.StartTime);
-            }
+            if (autoSeekOnPlacement.Value && EditorClock.CurrentTime < hitObject.StartTime)
+                EditorClock.SeekSmoothlyTo(hitObject.StartTime);
         }
 
         public void Delete(HitObject hitObject) => EditorBeatmap.Remove(hitObject);

osu.Game/Rulesets/Edit/HitObjectPlacementBlueprint.cs

@@ -5,6 +5,7 @@ using System.Linq;
 using System.Threading;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
+using osu.Framework.Graphics.Containers;
 using osu.Game.Audio;
 using osu.Game.Beatmaps;
 using osu.Game.Beatmaps.ControlPoints;
@@ -63,18 +64,26 @@ namespace osu.Game.Rulesets.Edit
             startTimeBindable.BindValueChanged(_ => ApplyDefaultsToHitObject(), true);
         }
 
+        private bool placementBegun;
+
         protected override void BeginPlacement(bool commitStart = false)
         {
             base.BeginPlacement(commitStart);
 
-            placementHandler.BeginPlacement(HitObject);
+            if (State.Value == Visibility.Visible)
+                placementHandler.ShowPlacement(HitObject);
+
+            placementBegun = true;
         }
 
         public override void EndPlacement(bool commit)
         {
             base.EndPlacement(commit);
 
-            placementHandler.EndPlacement(HitObject, IsValidForPlacement && commit);
+            if (IsValidForPlacement && commit)
+                placementHandler.CommitPlacement(HitObject);
+            else
+                placementHandler.HidePlacement();
         }
 
         /// <summary>
@@ -127,5 +136,19 @@ namespace osu.Game.Rulesets.Edit
         /// refreshing <see cref="Objects.HitObject.NestedHitObjects"/> and parameters for the <see cref="HitObject"/>.
         /// </summary>
         protected void ApplyDefaultsToHitObject() => HitObject.ApplyDefaults(beatmap.ControlPointInfo, beatmap.Difficulty);
+
+        protected override void PopIn()
+        {
+            base.PopIn();
+
+            if (placementBegun)
+                placementHandler.ShowPlacement(HitObject);
+        }
+
+        protected override void PopOut()
+        {
+            base.PopOut();
+            placementHandler.HidePlacement();
+        }
     }
 }

osu.Game/Rulesets/Edit/PlacementBlueprint.cs

@@ -7,7 +7,6 @@ using osu.Framework.Input.Bindings;
 using osu.Framework.Input.Events;
 using osu.Game.Input.Bindings;
 using osu.Game.Rulesets.Objects;
-using osuTK;
 using osuTK.Input;
 
 namespace osu.Game.Rulesets.Edit
@@ -15,7 +14,7 @@ namespace osu.Game.Rulesets.Edit
     /// <summary>
     /// A blueprint which governs the placement of something.
     /// </summary>
-    public abstract partial class PlacementBlueprint : CompositeDrawable, IKeyBindingHandler<GlobalAction>
+    public abstract partial class PlacementBlueprint : VisibilityContainer, IKeyBindingHandler<GlobalAction>
     {
         /// <summary>
         /// Whether the <see cref="HitObject"/> is currently mid-placement, but has not necessarily finished being placed.
@@ -31,12 +30,17 @@ namespace osu.Game.Rulesets.Edit
         /// </remarks>
         protected virtual bool IsValidForPlacement => true;
 
+        // the blueprint should still be considered for input even if it is hidden,
+        // especially when such input is the reason for making the blueprint become visible.
+        public override bool PropagatePositionalInputSubTree => true;
+        public override bool PropagateNonPositionalInputSubTree => true;
+
         protected PlacementBlueprint()
         {
             RelativeSizeAxes = Axes.Both;
 
-            // This is required to allow the blueprint's position to be updated via OnMouseMove/Handle
-            // on the same frame it is made visible via a PlacementState change.
+            // the blueprint should still be considered for input even if it is hidden,
+            // especially when such input is the reason for making the blueprint become visible.
             AlwaysPresent = true;
         }
 
@@ -104,8 +108,6 @@ namespace osu.Game.Rulesets.Edit
         {
         }
 
-        public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => true;
-
         protected override bool Handle(UIEvent e)
         {
             base.Handle(e);
@@ -127,6 +129,9 @@ namespace osu.Game.Rulesets.Edit
             }
         }
 
+        protected override void PopIn() => this.FadeIn();
+        protected override void PopOut() => this.FadeOut();
+
         public enum PlacementState
         {
             Waiting,

osu.Game/Rulesets/Objects/Legacy/Catch/ConvertHit.cs

@@ -1,20 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using osu.Game.Rulesets.Objects.Types;
-using osuTK;
-
-namespace osu.Game.Rulesets.Objects.Legacy.Catch
-{
-    /// <summary>
-    /// Legacy osu!catch Hit-type, used for parsing Beatmaps.
-    /// </summary>
-    internal sealed class ConvertHit : ConvertHitObject, IHasPosition
-    {
-        public float X => Position.X;
-
-        public float Y => Position.Y;
-
-        public Vector2 Position { get; set; }
-    }
-}

osu.Game/Rulesets/Objects/Legacy/Catch/ConvertHitObjectParser.cs

@@ -1,63 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-#nullable disable
-
-using osuTK;
-using osu.Game.Audio;
-using System.Collections.Generic;
-
-namespace osu.Game.Rulesets.Objects.Legacy.Catch
-{
-    /// <summary>
-    /// A HitObjectParser to parse legacy osu!catch Beatmaps.
-    /// </summary>
-    public class ConvertHitObjectParser : Legacy.ConvertHitObjectParser
-    {
-        private ConvertHitObject lastObject;
-
-        public ConvertHitObjectParser(double offset, int formatVersion)
-            : base(offset, formatVersion)
-        {
-        }
-
-        protected override HitObject CreateHit(Vector2 position, bool newCombo, int comboOffset)
-        {
-            return lastObject = new ConvertHit
-            {
-                Position = position,
-                NewCombo = FirstObject || lastObject is ConvertSpinner || newCombo,
-                ComboOffset = newCombo ? comboOffset : 0
-            };
-        }
-
-        protected override HitObject CreateSlider(Vector2 position, bool newCombo, int comboOffset, PathControlPoint[] controlPoints, double? length, int repeatCount,
-                                                  IList<IList<HitSampleInfo>> nodeSamples)
-        {
-            return lastObject = new ConvertSlider
-            {
-                Position = position,
-                NewCombo = FirstObject || lastObject is ConvertSpinner || newCombo,
-                ComboOffset = newCombo ? comboOffset : 0,
-                Path = new SliderPath(controlPoints, length),
-                NodeSamples = nodeSamples,
-                RepeatCount = repeatCount
-            };
-        }
-
-        protected override HitObject CreateSpinner(Vector2 position, bool newCombo, int comboOffset, double duration)
-        {
-            return lastObject = new ConvertSpinner
-            {
-                Duration = duration,
-                NewCombo = newCombo
-                // Spinners cannot have combo offset.
-            };
-        }
-
-        protected override HitObject CreateHold(Vector2 position, bool newCombo, int comboOffset, double duration)
-        {
-            return lastObject = null;
-        }
-    }
-}

osu.Game/Rulesets/Objects/Legacy/Catch/ConvertSlider.cs

@@ -1,20 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using osu.Game.Rulesets.Objects.Types;
-using osuTK;
-
-namespace osu.Game.Rulesets.Objects.Legacy.Catch
-{
-    /// <summary>
-    /// Legacy osu!catch Slider-type, used for parsing Beatmaps.
-    /// </summary>
-    internal sealed class ConvertSlider : Legacy.ConvertSlider, IHasPosition
-    {
-        public float X => Position.X;
-
-        public float Y => Position.Y;
-
-        public Vector2 Position { get; set; }
-    }
-}

osu.Game/Rulesets/Objects/Legacy/ConvertHitCircle.cs

@@ -0,0 +1,13 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+namespace osu.Game.Rulesets.Objects.Legacy
+{
+    /// <summary>
+    /// Legacy "HitCircle" hit object type.
+    /// </summary>
+    /// <remarks>
+    /// Only used for parsing beatmaps and not gameplay.
+    /// </remarks>
+    internal sealed class ConvertHitCircle : ConvertHitObject;
+}

osu.Game/Rulesets/Objects/Legacy/ConvertHitObject.cs

@@ -1,21 +1,34 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using osu.Game.Beatmaps.Legacy;
 using osu.Game.Rulesets.Judgements;
 using osu.Game.Rulesets.Objects.Types;
 using osu.Game.Rulesets.Scoring;
+using osuTK;
 
 namespace osu.Game.Rulesets.Objects.Legacy
 {
     /// <summary>
-    /// A hit object only used for conversion, not actual gameplay.
+    /// Represents a legacy hit object.
     /// </summary>
-    internal abstract class ConvertHitObject : HitObject, IHasCombo
+    /// <remarks>
+    /// Only used for parsing beatmaps and not gameplay.
+    /// </remarks>
+    internal abstract class ConvertHitObject : HitObject, IHasCombo, IHasPosition, IHasLegacyHitObjectType
     {
         public bool NewCombo { get; set; }
 
         public int ComboOffset { get; set; }
 
+        public float X => Position.X;
+
+        public float Y => Position.Y;
+
+        public Vector2 Position { get; set; }
+
+        public LegacyHitObjectType LegacyType { get; set; }
+
         public override Judgement CreateJudgement() => new IgnoreJudgement();
 
         protected override HitWindows CreateHitWindows() => HitWindows.Empty;

osu.Game/Rulesets/Objects/Legacy/ConvertHitObjectParser.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using osuTK;
 using osu.Game.Rulesets.Objects.Types;
 using System;
@@ -11,7 +9,6 @@ using System.IO;
 using osu.Game.Beatmaps.Formats;
 using osu.Game.Audio;
 using System.Linq;
-using JetBrains.Annotations;
 using osu.Framework.Utils;
 using osu.Game.Beatmaps.ControlPoints;
 using osu.Game.Beatmaps.Legacy;
@@ -24,24 +21,32 @@ namespace osu.Game.Rulesets.Objects.Legacy
     /// <summary>
     /// A HitObjectParser to parse legacy Beatmaps.
     /// </summary>
-    public abstract class ConvertHitObjectParser : HitObjectParser
+    public class ConvertHitObjectParser : HitObjectParser
     {
         /// <summary>
         /// The offset to apply to all time values.
         /// </summary>
-        protected readonly double Offset;
+        private readonly double offset;
 
         /// <summary>
         /// The .osu format (beatmap) version.
         /// </summary>
-        protected readonly int FormatVersion;
+        private readonly int formatVersion;
 
-        protected bool FirstObject { get; private set; } = true;
+        /// <summary>
+        /// Whether the current hitobject is the first hitobject in the beatmap.
+        /// </summary>
+        private bool firstObject = true;
 
-        protected ConvertHitObjectParser(double offset, int formatVersion)
+        /// <summary>
+        /// The last parsed hitobject.
+        /// </summary>
+        private ConvertHitObject? lastObject;
+
+        internal ConvertHitObjectParser(double offset, int formatVersion)
         {
-            Offset = offset;
-            FormatVersion = formatVersion;
+            this.offset = offset;
+            this.formatVersion = formatVersion;
         }
 
         public override HitObject Parse(string text)
@@ -49,11 +54,11 @@ namespace osu.Game.Rulesets.Objects.Legacy
             string[] split = text.Split(',');
 
             Vector2 pos =
-                FormatVersion >= LegacyBeatmapEncoder.FIRST_LAZER_VERSION
+                formatVersion >= LegacyBeatmapEncoder.FIRST_LAZER_VERSION
                     ? new Vector2(Parsing.ParseFloat(split[0], Parsing.MAX_COORDINATE_VALUE), Parsing.ParseFloat(split[1], Parsing.MAX_COORDINATE_VALUE))
                     : new Vector2((int)Parsing.ParseFloat(split[0], Parsing.MAX_COORDINATE_VALUE), (int)Parsing.ParseFloat(split[1], Parsing.MAX_COORDINATE_VALUE));
 
-            double startTime = Parsing.ParseDouble(split[2]) + Offset;
+            double startTime = Parsing.ParseDouble(split[2]) + offset;
 
             LegacyHitObjectType type = (LegacyHitObjectType)Parsing.ParseInt(split[3]);
 
@@ -66,11 +71,11 @@ namespace osu.Game.Rulesets.Objects.Legacy
             var soundType = (LegacyHitSoundType)Parsing.ParseInt(split[4]);
             var bankInfo = new SampleBankInfo();
 
-            HitObject result = null;
+            ConvertHitObject? result = null;
 
             if (type.HasFlag(LegacyHitObjectType.Circle))
             {
-                result = CreateHit(pos, combo, comboOffset);
+                result = createHitCircle(pos, combo, comboOffset);
 
                 if (split.Length > 5)
                     readCustomSampleBanks(split[5], bankInfo);
@@ -145,13 +150,13 @@ namespace osu.Game.Rulesets.Objects.Legacy
                 for (int i = 0; i < nodes; i++)
                     nodeSamples.Add(convertSoundType(nodeSoundTypes[i], nodeBankInfos[i]));
 
-                result = CreateSlider(pos, combo, comboOffset, convertPathString(split[5], pos), length, repeatCount, nodeSamples);
+                result = createSlider(pos, combo, comboOffset, convertPathString(split[5], pos), length, repeatCount, nodeSamples);
             }
             else if (type.HasFlag(LegacyHitObjectType.Spinner))
             {
-                double duration = Math.Max(0, Parsing.ParseDouble(split[5]) + Offset - startTime);
+                double duration = Math.Max(0, Parsing.ParseDouble(split[5]) + offset - startTime);
 
-                result = CreateSpinner(new Vector2(512, 384) / 2, combo, comboOffset, duration);
+                result = createSpinner(new Vector2(512, 384) / 2, combo, duration);
 
                 if (split.Length > 6)
                     readCustomSampleBanks(split[6], bankInfo);
@@ -169,18 +174,19 @@ namespace osu.Game.Rulesets.Objects.Legacy
                     readCustomSampleBanks(string.Join(':', ss.Skip(1)), bankInfo);
                 }
 
-                result = CreateHold(pos, combo, comboOffset, endTime + Offset - startTime);
+                result = createHold(pos, endTime + offset - startTime);
             }
 
             if (result == null)
                 throw new InvalidDataException($"Unknown hit object type: {split[3]}");
 
             result.StartTime = startTime;
+            result.LegacyType = type;
 
             if (result.Samples.Count == 0)
                 result.Samples = convertSoundType(soundType, bankInfo);
 
-            FirstObject = false;
+            firstObject = false;
 
             return result;
         }
@@ -200,10 +206,11 @@ namespace osu.Game.Rulesets.Objects.Legacy
             if (!Enum.IsDefined(addBank))
                 addBank = LegacySampleBank.Normal;
 
-            string stringBank = bank.ToString().ToLowerInvariant();
+            string? stringBank = bank.ToString().ToLowerInvariant();
+            string? stringAddBank = addBank.ToString().ToLowerInvariant();
+
             if (stringBank == @"none")
                 stringBank = null;
-            string stringAddBank = addBank.ToString().ToLowerInvariant();
 
             if (stringAddBank == @"none")
             {
@@ -357,7 +364,7 @@ namespace osu.Game.Rulesets.Objects.Legacy
             {
                 int endPointLength = endPoint == null ? 0 : 1;
 
-                if (FormatVersion < LegacyBeatmapEncoder.FIRST_LAZER_VERSION)
+                if (formatVersion < LegacyBeatmapEncoder.FIRST_LAZER_VERSION)
                 {
                     if (vertices.Length + endPointLength != 3)
                         type = PathType.BEZIER;
@@ -393,7 +400,7 @@ namespace osu.Game.Rulesets.Objects.Legacy
                 // Legacy CATMULL sliders don't support multiple segments, so adjacent CATMULL segments should be treated as a single one.
                 // Importantly, this is not applied to the first control point, which may duplicate the slider path's position
                 // resulting in a duplicate (0,0) control point in the resultant list.
-                if (type == PathType.CATMULL && endIndex > 1 && FormatVersion < LegacyBeatmapEncoder.FIRST_LAZER_VERSION)
+                if (type == PathType.CATMULL && endIndex > 1 && formatVersion < LegacyBeatmapEncoder.FIRST_LAZER_VERSION)
                     continue;
 
                 // The last control point of each segment is not allowed to start a new implicit segment.
@@ -442,7 +449,15 @@ namespace osu.Game.Rulesets.Objects.Legacy
         /// <param name="newCombo">Whether the hit object creates a new combo.</param>
         /// <param name="comboOffset">When starting a new combo, the offset of the new combo relative to the current one.</param>
         /// <returns>The hit object.</returns>
-        protected abstract HitObject CreateHit(Vector2 position, bool newCombo, int comboOffset);
+        private ConvertHitObject createHitCircle(Vector2 position, bool newCombo, int comboOffset)
+        {
+            return lastObject = new ConvertHitCircle
+            {
+                Position = position,
+                NewCombo = firstObject || lastObject is ConvertSpinner || newCombo,
+                ComboOffset = newCombo ? comboOffset : 0
+            };
+        }
 
         /// <summary>
         /// Creats a legacy Slider-type hit object.
@@ -455,27 +470,51 @@ namespace osu.Game.Rulesets.Objects.Legacy
         /// <param name="repeatCount">The slider repeat count.</param>
         /// <param name="nodeSamples">The samples to be played when the slider nodes are hit. This includes the head and tail of the slider.</param>
         /// <returns>The hit object.</returns>
-        protected abstract HitObject CreateSlider(Vector2 position, bool newCombo, int comboOffset, PathControlPoint[] controlPoints, double? length, int repeatCount,
-                                                  IList<IList<HitSampleInfo>> nodeSamples);
+        private ConvertHitObject createSlider(Vector2 position, bool newCombo, int comboOffset, PathControlPoint[] controlPoints, double? length, int repeatCount,
+                                              IList<IList<HitSampleInfo>> nodeSamples)
+        {
+            return lastObject = new ConvertSlider
+            {
+                Position = position,
+                NewCombo = firstObject || lastObject is ConvertSpinner || newCombo,
+                ComboOffset = newCombo ? comboOffset : 0,
+                Path = new SliderPath(controlPoints, length),
+                NodeSamples = nodeSamples,
+                RepeatCount = repeatCount
+            };
+        }
 
         /// <summary>
         /// Creates a legacy Spinner-type hit object.
         /// </summary>
         /// <param name="position">The position of the hit object.</param>
         /// <param name="newCombo">Whether the hit object creates a new combo.</param>
-        /// <param name="comboOffset">When starting a new combo, the offset of the new combo relative to the current one.</param>
         /// <param name="duration">The spinner duration.</param>
         /// <returns>The hit object.</returns>
-        protected abstract HitObject CreateSpinner(Vector2 position, bool newCombo, int comboOffset, double duration);
+        private ConvertHitObject createSpinner(Vector2 position, bool newCombo, double duration)
+        {
+            return lastObject = new ConvertSpinner
+            {
+                Position = position,
+                Duration = duration,
+                NewCombo = newCombo
+                // Spinners cannot have combo offset.
+            };
+        }
 
         /// <summary>
         /// Creates a legacy Hold-type hit object.
         /// </summary>
         /// <param name="position">The position of the hit object.</param>
-        /// <param name="newCombo">Whether the hit object creates a new combo.</param>
-        /// <param name="comboOffset">When starting a new combo, the offset of the new combo relative to the current one.</param>
         /// <param name="duration">The hold duration.</param>
-        protected abstract HitObject CreateHold(Vector2 position, bool newCombo, int comboOffset, double duration);
+        private ConvertHitObject createHold(Vector2 position, double duration)
+        {
+            return lastObject = new ConvertHold
+            {
+                Position = position,
+                Duration = duration
+            };
+        }
 
         private List<HitSampleInfo> convertSoundType(LegacyHitSoundType type, SampleBankInfo bankInfo)
         {
@@ -511,21 +550,19 @@ namespace osu.Game.Rulesets.Objects.Legacy
             /// <summary>
             /// An optional overriding filename which causes all bank/sample specifications to be ignored.
             /// </summary>
-            public string Filename;
+            public string? Filename;
 
             /// <summary>
             /// The bank identifier to use for the base ("hitnormal") sample.
             /// Transferred to <see cref="HitSampleInfo.Bank"/> when appropriate.
             /// </summary>
-            [CanBeNull]
-            public string BankForNormal;
+            public string? BankForNormal;
 
             /// <summary>
             /// The bank identifier to use for additions ("hitwhistle", "hitfinish", "hitclap").
             /// Transferred to <see cref="HitSampleInfo.Bank"/> when appropriate.
             /// </summary>
-            [CanBeNull]
-            public string BankForAdditions;
+            public string? BankForAdditions;
 
             /// <summary>
             /// Hit sample volume (0-100).
@@ -548,8 +585,6 @@ namespace osu.Game.Rulesets.Objects.Legacy
             public SampleBankInfo Clone() => (SampleBankInfo)MemberwiseClone();
         }
 
-#nullable enable
-
         public class LegacyHitSampleInfo : HitSampleInfo, IEquatable<LegacyHitSampleInfo>
         {
             public readonly int CustomSampleBank;
@@ -577,13 +612,14 @@ namespace osu.Game.Rulesets.Objects.Legacy
                 IsLayered = isLayered;
             }
 
-            public sealed override HitSampleInfo With(Optional<string> newName = default, Optional<string> newBank = default, Optional<string?> newSuffix = default, Optional<int> newVolume = default, Optional<bool> newEditorAutoBank = default)
+            public sealed override HitSampleInfo With(Optional<string> newName = default, Optional<string> newBank = default, Optional<string?> newSuffix = default, Optional<int> newVolume = default,
+                                                      Optional<bool> newEditorAutoBank = default)
                 => With(newName, newBank, newVolume, newEditorAutoBank);
 
-            public virtual LegacyHitSampleInfo With(Optional<string> newName = default, Optional<string> newBank = default, Optional<int> newVolume = default, Optional<bool> newEditorAutoBank = default,
-                                                    Optional<int> newCustomSampleBank = default,
-                                                    Optional<bool> newIsLayered = default)
-                => new LegacyHitSampleInfo(newName.GetOr(Name), newBank.GetOr(Bank), newVolume.GetOr(Volume), newEditorAutoBank.GetOr(EditorAutoBank), newCustomSampleBank.GetOr(CustomSampleBank), newIsLayered.GetOr(IsLayered));
+            public virtual LegacyHitSampleInfo With(Optional<string> newName = default, Optional<string> newBank = default, Optional<int> newVolume = default,
+                                                    Optional<bool> newEditorAutoBank = default, Optional<int> newCustomSampleBank = default, Optional<bool> newIsLayered = default)
+                => new LegacyHitSampleInfo(newName.GetOr(Name), newBank.GetOr(Bank), newVolume.GetOr(Volume), newEditorAutoBank.GetOr(EditorAutoBank), newCustomSampleBank.GetOr(CustomSampleBank),
+                    newIsLayered.GetOr(IsLayered));
 
             public bool Equals(LegacyHitSampleInfo? other)
                 // The additions to equality checks here are *required* to ensure that pooling works correctly.
@@ -615,9 +651,8 @@ namespace osu.Game.Rulesets.Objects.Legacy
                 Path.ChangeExtension(Filename, null)
             };
 
-            public sealed override LegacyHitSampleInfo With(Optional<string> newName = default, Optional<string> newBank = default, Optional<int> newVolume = default, Optional<bool> newEditorAutoBank = default,
-                                                            Optional<int> newCustomSampleBank = default,
-                                                            Optional<bool> newIsLayered = default)
+            public sealed override LegacyHitSampleInfo With(Optional<string> newName = default, Optional<string> newBank = default, Optional<int> newVolume = default,
+                                                            Optional<bool> newEditorAutoBank = default, Optional<int> newCustomSampleBank = default, Optional<bool> newIsLayered = default)
                 => new FileHitSampleInfo(Filename, newVolume.GetOr(Volume));
 
             public bool Equals(FileHitSampleInfo? other)

osu.Game/Rulesets/Objects/Legacy/ConvertHold.cs

@@ -3,17 +3,18 @@
 
 using osu.Game.Rulesets.Objects.Types;
 
-namespace osu.Game.Rulesets.Objects.Legacy.Catch
+namespace osu.Game.Rulesets.Objects.Legacy
 {
     /// <summary>
-    /// Legacy osu!catch Spinner-type, used for parsing Beatmaps.
+    /// Legacy "Hold" hit object type. Generally only valid in the mania ruleset.
     /// </summary>
-    internal sealed class ConvertSpinner : ConvertHitObject, IHasDuration, IHasXPosition
+    /// <remarks>
+    /// Only used for parsing beatmaps and not gameplay.
+    /// </remarks>
+    internal sealed class ConvertHold : ConvertHitObject, IHasDuration
     {
-        public double EndTime => StartTime + Duration;
-
         public double Duration { get; set; }
 
-        public float X => 256; // Required for CatchBeatmapConverter
+        public double EndTime => StartTime + Duration;
     }
 }

osu.Game/Rulesets/Objects/Legacy/ConvertSlider.cs

@@ -1,8 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-#nullable disable
-
 using osu.Game.Rulesets.Objects.Types;
 using System.Collections.Generic;
 using Newtonsoft.Json;
@@ -13,7 +11,13 @@ using osu.Game.Beatmaps.ControlPoints;
 
 namespace osu.Game.Rulesets.Objects.Legacy
 {
-    internal abstract class ConvertSlider : ConvertHitObject, IHasPathWithRepeats, IHasSliderVelocity
+    /// <summary>
+    /// Legacy "Slider" hit object type.
+    /// </summary>
+    /// <remarks>
+    /// Only used for parsing beatmaps and not gameplay.
+    /// </remarks>
+    internal class ConvertSlider : ConvertHitObject, IHasPathWithRepeats, IHasSliderVelocity, IHasGenerateTicks
     {
         /// <summary>
         /// Scoring distance with a speed-adjusted beat length of 1 second.
@@ -50,6 +54,8 @@ namespace osu.Game.Rulesets.Objects.Legacy
             set => SliderVelocityMultiplierBindable.Value = value;
         }
 
+        public bool GenerateTicks { get; set; } = true;
+
         protected override void ApplyDefaultsToSelf(ControlPointInfo controlPointInfo, IBeatmapDifficultyInfo difficulty)
         {
             base.ApplyDefaultsToSelf(controlPointInfo, difficulty);

osu.Game/Rulesets/Objects/Legacy/ConvertSpinner.cs

@@ -3,11 +3,14 @@
 
 using osu.Game.Rulesets.Objects.Types;
 
-namespace osu.Game.Rulesets.Objects.Legacy.Taiko
+namespace osu.Game.Rulesets.Objects.Legacy
 {
     /// <summary>
-    /// Legacy osu!taiko Spinner-type, used for parsing Beatmaps.
+    /// Legacy "Spinner" hit object type.
     /// </summary>
+    /// <remarks>
+    /// Only used for parsing beatmaps and not gameplay.
+    /// </remarks>
     internal sealed class ConvertSpinner : ConvertHitObject, IHasDuration
     {
         public double Duration { get; set; }

osu.Game/Rulesets/Objects/Legacy/IHasLegacyHitObjectType.cs

@@ -0,0 +1,18 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Game.Beatmaps.Legacy;
+
+namespace osu.Game.Rulesets.Objects.Legacy
+{
+    /// <summary>
+    /// A hit object from a legacy beatmap representation.
+    /// </summary>
+    public interface IHasLegacyHitObjectType
+    {
+        /// <summary>
+        /// The hit object type.
+        /// </summary>
+        LegacyHitObjectType LegacyType { get; }
+    }
+}

osu.Game/Rulesets/Objects/Legacy/Mania/ConvertHit.cs

@@ -1,15 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using osu.Game.Rulesets.Objects.Types;
-
-namespace osu.Game.Rulesets.Objects.Legacy.Mania
-{
-    /// <summary>
-    /// Legacy osu!mania Hit-type, used for parsing Beatmaps.
-    /// </summary>
-    internal sealed class ConvertHit : ConvertHitObject, IHasXPosition
-    {
-        public float X { get; set; }
-    }
-}

osu.Game/Rulesets/Objects/Legacy/Mania/ConvertHitObjectParser.cs

@@ -1,58 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using osuTK;
-using osu.Game.Audio;
-using System.Collections.Generic;
-
-namespace osu.Game.Rulesets.Objects.Legacy.Mania
-{
-    /// <summary>
-    /// A HitObjectParser to parse legacy osu!mania Beatmaps.
-    /// </summary>
-    public class ConvertHitObjectParser : Legacy.ConvertHitObjectParser
-    {
-        public ConvertHitObjectParser(double offset, int formatVersion)
-            : base(offset, formatVersion)
-        {
-        }
-
-        protected override HitObject CreateHit(Vector2 position, bool newCombo, int comboOffset)
-        {
-            return new ConvertHit
-            {
-                X = position.X
-            };
-        }
-
-        protected override HitObject CreateSlider(Vector2 position, bool newCombo, int comboOffset, PathControlPoint[] controlPoints, double? length, int repeatCount,
-                                                  IList<IList<HitSampleInfo>> nodeSamples)
-        {
-            return new ConvertSlider
-            {
-                X = position.X,
-                Path = new SliderPath(controlPoints, length),
-                NodeSamples = nodeSamples,
-                RepeatCount = repeatCount
-            };
-        }
-
-        protected override HitObject CreateSpinner(Vector2 position, bool newCombo, int comboOffset, double duration)
-        {
-            return new ConvertSpinner
-            {
-                X = position.X,
-                Duration = duration
-            };
-        }
-
-        protected override HitObject CreateHold(Vector2 position, bool newCombo, int comboOffset, double duration)
-        {
-            return new ConvertHold
-            {
-                X = position.X,
-                Duration = duration
-            };
-        }
-    }
-}

osu.Game/Rulesets/Objects/Legacy/Mania/ConvertHold.cs

@@ -1,16 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using osu.Game.Rulesets.Objects.Types;
-
-namespace osu.Game.Rulesets.Objects.Legacy.Mania
-{
-    internal sealed class ConvertHold : ConvertHitObject, IHasXPosition, IHasDuration
-    {
-        public float X { get; set; }
-
-        public double Duration { get; set; }
-
-        public double EndTime => StartTime + Duration;
-    }
-}

osu.Game/Rulesets/Objects/Legacy/Mania/ConvertSlider.cs

@@ -1,15 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using osu.Game.Rulesets.Objects.Types;
-
-namespace osu.Game.Rulesets.Objects.Legacy.Mania
-{
-    /// <summary>
-    /// Legacy osu!mania Slider-type, used for parsing Beatmaps.
-    /// </summary>
-    internal sealed class ConvertSlider : Legacy.ConvertSlider, IHasXPosition
-    {
-        public float X { get; set; }
-    }
-}

osu.Game/Rulesets/Objects/Legacy/Mania/ConvertSpinner.cs

@@ -1,19 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using osu.Game.Rulesets.Objects.Types;
-
-namespace osu.Game.Rulesets.Objects.Legacy.Mania
-{
-    /// <summary>
-    /// Legacy osu!mania Spinner-type, used for parsing Beatmaps.
-    /// </summary>
-    internal sealed class ConvertSpinner : ConvertHitObject, IHasDuration, IHasXPosition
-    {
-        public double Duration { get; set; }
-
-        public double EndTime => StartTime + Duration;
-
-        public float X { get; set; }
-    }
-}