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https://github.com/ppy/osu.git
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353 lines
14 KiB
C#
353 lines
14 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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#nullable disable
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using osu.Framework.Allocation;
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using osu.Framework.Bindables;
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using osu.Framework.Caching;
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using osu.Framework.Extensions.EnumExtensions;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.Sprites;
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using osu.Framework.Utils;
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using osu.Framework.Input.Events;
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using osu.Game.Beatmaps;
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using osu.Game.Graphics.UserInterface;
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using osu.Game.Input.Bindings;
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using osu.Game.Rulesets.Edit;
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using osu.Game.Rulesets.Edit.Tools;
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using osu.Game.Rulesets.Mods;
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using osu.Game.Rulesets.Objects;
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using osu.Game.Rulesets.Osu.Objects;
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using osu.Game.Rulesets.UI;
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using osu.Game.Screens.Edit.Components.TernaryButtons;
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using osu.Game.Screens.Edit.Compose.Components;
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using osuTK;
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namespace osu.Game.Rulesets.Osu.Edit
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{
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public partial class OsuHitObjectComposer : DistancedHitObjectComposer<OsuHitObject>
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{
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public OsuHitObjectComposer(Ruleset ruleset)
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: base(ruleset)
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{
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}
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protected override DrawableRuleset<OsuHitObject> CreateDrawableRuleset(Ruleset ruleset, IBeatmap beatmap, IReadOnlyList<Mod> mods = null)
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=> new DrawableOsuEditorRuleset(ruleset, beatmap, mods);
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protected override IReadOnlyList<HitObjectCompositionTool> CompositionTools => new HitObjectCompositionTool[]
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{
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new HitCircleCompositionTool(),
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new SliderCompositionTool(),
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new SpinnerCompositionTool()
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};
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private readonly Bindable<TernaryState> rectangularGridSnapToggle = new Bindable<TernaryState>();
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protected override IEnumerable<TernaryButton> CreateTernaryButtons() => base.CreateTernaryButtons().Concat(new[]
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{
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new TernaryButton(rectangularGridSnapToggle, "Grid Snap", () => new SpriteIcon { Icon = FontAwesome.Solid.Th })
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});
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private BindableList<HitObject> selectedHitObjects;
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private Bindable<HitObject> placementObject;
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[BackgroundDependencyLoader]
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private void load()
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{
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// Give a bit of breathing room around the playfield content.
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PlayfieldContentContainer.Padding = new MarginPadding(10);
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LayerBelowRuleset.AddRange(new Drawable[]
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{
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distanceSnapGridContainer = new Container
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{
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RelativeSizeAxes = Axes.Both
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},
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rectangularPositionSnapGrid = new OsuRectangularPositionSnapGrid
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{
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RelativeSizeAxes = Axes.Both
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}
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});
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selectedHitObjects = EditorBeatmap.SelectedHitObjects.GetBoundCopy();
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selectedHitObjects.CollectionChanged += (_, _) => updateDistanceSnapGrid();
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placementObject = EditorBeatmap.PlacementObject.GetBoundCopy();
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placementObject.ValueChanged += _ => updateDistanceSnapGrid();
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DistanceSnapToggle.ValueChanged += _ => updateDistanceSnapGrid();
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// we may be entering the screen with a selection already active
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updateDistanceSnapGrid();
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}
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protected override ComposeBlueprintContainer CreateBlueprintContainer()
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=> new OsuBlueprintContainer(this);
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public override string ConvertSelectionToString()
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=> string.Join(',', selectedHitObjects.Cast<OsuHitObject>().OrderBy(h => h.StartTime).Select(h => (h.IndexInCurrentCombo + 1).ToString()));
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private DistanceSnapGrid distanceSnapGrid;
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private Container distanceSnapGridContainer;
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private readonly Cached distanceSnapGridCache = new Cached();
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private double? lastDistanceSnapGridTime;
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private RectangularPositionSnapGrid rectangularPositionSnapGrid;
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protected override double ReadCurrentDistanceSnap(HitObject before, HitObject after)
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{
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float expectedDistance = DurationToDistance(before, after.StartTime - before.GetEndTime());
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float actualDistance = Vector2.Distance(((OsuHitObject)before).EndPosition, ((OsuHitObject)after).Position);
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return actualDistance / expectedDistance;
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}
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protected override void Update()
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{
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base.Update();
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if (!(BlueprintContainer.CurrentTool is SelectTool))
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{
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if (EditorClock.CurrentTime != lastDistanceSnapGridTime)
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{
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distanceSnapGridCache.Invalidate();
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lastDistanceSnapGridTime = EditorClock.CurrentTime;
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}
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if (!distanceSnapGridCache.IsValid)
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updateDistanceSnapGrid();
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}
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}
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public override SnapResult FindSnappedPositionAndTime(Vector2 screenSpacePosition, SnapType snapType = SnapType.All)
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{
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if (snapType.HasFlagFast(SnapType.NearbyObjects) && snapToVisibleBlueprints(screenSpacePosition, out var snapResult))
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{
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// In the case of snapping to nearby objects, a time value is not provided.
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// This matches the stable editor (which also uses current time), but with the introduction of time-snapping distance snap
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// this could result in unexpected behaviour when distance snapping is turned on and a user attempts to place an object that is
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// BOTH on a valid distance snap ring, and also at the same position as a previous object.
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//
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// We want to ensure that in this particular case, the time-snapping component of distance snap is still applied.
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// The easiest way to ensure this is to attempt application of distance snap after a nearby object is found, and copy over
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// the time value if the proposed positions are roughly the same.
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if (snapType.HasFlagFast(SnapType.Grids) && DistanceSnapToggle.Value == TernaryState.True && distanceSnapGrid != null)
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{
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(Vector2 distanceSnappedPosition, double distanceSnappedTime) = distanceSnapGrid.GetSnappedPosition(distanceSnapGrid.ToLocalSpace(snapResult.ScreenSpacePosition));
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if (Precision.AlmostEquals(distanceSnapGrid.ToScreenSpace(distanceSnappedPosition), snapResult.ScreenSpacePosition, 1))
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snapResult.Time = distanceSnappedTime;
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}
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return snapResult;
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}
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SnapResult result = base.FindSnappedPositionAndTime(screenSpacePosition, snapType);
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if (snapType.HasFlagFast(SnapType.Grids))
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{
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if (DistanceSnapToggle.Value == TernaryState.True && distanceSnapGrid != null)
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{
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(Vector2 pos, double time) = distanceSnapGrid.GetSnappedPosition(distanceSnapGrid.ToLocalSpace(screenSpacePosition));
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result.ScreenSpacePosition = distanceSnapGrid.ToScreenSpace(pos);
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result.Time = time;
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}
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if (rectangularGridSnapToggle.Value == TernaryState.True)
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{
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Vector2 pos = rectangularPositionSnapGrid.GetSnappedPosition(rectangularPositionSnapGrid.ToLocalSpace(result.ScreenSpacePosition));
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result.ScreenSpacePosition = rectangularPositionSnapGrid.ToScreenSpace(pos);
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}
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}
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return result;
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}
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private bool snapToVisibleBlueprints(Vector2 screenSpacePosition, out SnapResult snapResult)
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{
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// check other on-screen objects for snapping/stacking
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var blueprints = BlueprintContainer.SelectionBlueprints.AliveChildren;
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var playfield = PlayfieldAtScreenSpacePosition(screenSpacePosition);
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float snapRadius =
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playfield.GamefieldToScreenSpace(new Vector2(OsuHitObject.OBJECT_RADIUS / 5)).X -
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playfield.GamefieldToScreenSpace(Vector2.Zero).X;
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foreach (var b in blueprints)
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{
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if (b.IsSelected)
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continue;
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var hitObject = (OsuHitObject)b.Item;
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Vector2? snap = checkSnap(hitObject.Position);
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if (snap == null && hitObject.Position != hitObject.EndPosition)
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snap = checkSnap(hitObject.EndPosition);
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if (snap != null)
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{
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// only return distance portion, since time is not really valid
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snapResult = new SnapResult(snap.Value, null, playfield);
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return true;
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}
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Vector2? checkSnap(Vector2 checkPos)
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{
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Vector2 checkScreenPos = playfield.GamefieldToScreenSpace(checkPos);
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if (Vector2.Distance(checkScreenPos, screenSpacePosition) < snapRadius)
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return checkScreenPos;
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return null;
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}
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}
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snapResult = null;
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return false;
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}
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private void updateDistanceSnapGrid()
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{
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distanceSnapGridContainer.Clear();
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distanceSnapGridCache.Invalidate();
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distanceSnapGrid = null;
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if (DistanceSnapToggle.Value != TernaryState.True)
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return;
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switch (BlueprintContainer.CurrentTool)
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{
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case SelectTool:
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if (!EditorBeatmap.SelectedHitObjects.Any())
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return;
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distanceSnapGrid = createDistanceSnapGrid(EditorBeatmap.SelectedHitObjects);
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break;
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default:
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if (!CursorInPlacementArea)
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return;
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distanceSnapGrid = createDistanceSnapGrid(Enumerable.Empty<HitObject>());
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break;
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}
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if (distanceSnapGrid != null)
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{
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distanceSnapGridContainer.Add(distanceSnapGrid);
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distanceSnapGridCache.Validate();
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}
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}
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protected override bool OnKeyDown(KeyDownEvent e)
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{
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if (e.Repeat)
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return false;
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handleToggleViaKey(e);
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return base.OnKeyDown(e);
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}
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protected override void OnKeyUp(KeyUpEvent e)
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{
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handleToggleViaKey(e);
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base.OnKeyUp(e);
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}
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protected override bool AdjustDistanceSpacing(GlobalAction action, float amount)
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{
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// To allow better visualisation, ensure that the spacing grid is visible before adjusting.
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DistanceSnapToggle.Value = TernaryState.True;
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return base.AdjustDistanceSpacing(action, amount);
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}
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private bool gridSnapMomentary;
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private void handleToggleViaKey(KeyboardEvent key)
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{
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bool shiftPressed = key.ShiftPressed;
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if (shiftPressed != gridSnapMomentary)
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{
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gridSnapMomentary = shiftPressed;
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rectangularGridSnapToggle.Value = rectangularGridSnapToggle.Value == TernaryState.False ? TernaryState.True : TernaryState.False;
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}
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}
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private DistanceSnapGrid createDistanceSnapGrid(IEnumerable<HitObject> selectedHitObjects)
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{
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if (BlueprintContainer.CurrentTool is SpinnerCompositionTool)
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return null;
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var objects = selectedHitObjects.ToList();
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if (objects.Count == 0)
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// use accurate time value to give more instantaneous feedback to the user.
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return createGrid(h => h.StartTime <= EditorClock.CurrentTimeAccurate);
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double minTime = objects.Min(h => h.StartTime);
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return createGrid(h => h.StartTime < minTime, objects.Count + 1);
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}
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/// <summary>
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/// Creates a grid from the last <see cref="HitObject"/> matching a predicate to a target <see cref="HitObject"/>.
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/// </summary>
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/// <param name="sourceSelector">A predicate that matches <see cref="HitObject"/>s where the grid can start from.
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/// Only the last <see cref="HitObject"/> matching the predicate is used.</param>
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/// <param name="targetOffset">An offset from the <see cref="HitObject"/> selected via <paramref name="sourceSelector"/> at which the grid should stop.</param>
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/// <returns>The <see cref="OsuDistanceSnapGrid"/> from a selected <see cref="HitObject"/> to a target <see cref="HitObject"/>.</returns>
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private OsuDistanceSnapGrid createGrid(Func<HitObject, bool> sourceSelector, int targetOffset = 1)
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{
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if (targetOffset < 1) throw new ArgumentOutOfRangeException(nameof(targetOffset));
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int sourceIndex = -1;
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for (int i = 0; i < EditorBeatmap.HitObjects.Count; i++)
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{
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if (!sourceSelector(EditorBeatmap.HitObjects[i]))
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break;
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sourceIndex = i;
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}
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if (sourceIndex == -1)
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return null;
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HitObject sourceObject = EditorBeatmap.HitObjects[sourceIndex];
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int targetIndex = sourceIndex + targetOffset;
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HitObject targetObject = null;
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// Keep advancing the target object while its start time falls before the end time of the source object
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while (true)
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{
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if (targetIndex >= EditorBeatmap.HitObjects.Count)
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break;
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if (EditorBeatmap.HitObjects[targetIndex].StartTime >= sourceObject.GetEndTime())
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{
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targetObject = EditorBeatmap.HitObjects[targetIndex];
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break;
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}
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targetIndex++;
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}
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if (sourceObject is Spinner)
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return null;
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return new OsuDistanceSnapGrid((OsuHitObject)sourceObject, (OsuHitObject)targetObject);
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}
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}
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}
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