From 3c32a50c125bf4e9b28b26298277bb80cc38cb0f Mon Sep 17 00:00:00 2001
From: cdwcgt <cdwcgt@cdwcgt.top>
Date: Fri, 30 Dec 2022 21:19:46 +0900
Subject: [PATCH] add new accuracy counter display

---
 osu.Game/Rulesets/Scoring/ScoreProcessor.cs   | 14 ++++++++
 .../Play/HUD/GameplayAccuracyCounter.cs       | 32 ++++++++++++++++++-
 2 files changed, 45 insertions(+), 1 deletion(-)

diff --git a/osu.Game/Rulesets/Scoring/ScoreProcessor.cs b/osu.Game/Rulesets/Scoring/ScoreProcessor.cs
index 4228840461..cec2b7e6b9 100644
--- a/osu.Game/Rulesets/Scoring/ScoreProcessor.cs
+++ b/osu.Game/Rulesets/Scoring/ScoreProcessor.cs
@@ -39,6 +39,16 @@ namespace osu.Game.Rulesets.Scoring
         /// </summary>
         public readonly BindableDouble Accuracy = new BindableDouble(1) { MinValue = 0, MaxValue = 1 };
 
+        /// <summary>
+        /// The accuracy which increase from 0%.
+        /// </summary>
+        public readonly BindableDouble IncreaseAccuracy = new BindableDouble(0) { MinValue = 0, MaxValue = 1 };
+
+        /// <summary>
+        /// The accuracy which Decrease from 100%.
+        /// </summary>
+        public readonly BindableDouble DecreaseAccuracy = new BindableDouble(0) { MinValue = 0, MaxValue = 1 };
+
         /// <summary>
         /// The current combo.
         /// </summary>
@@ -264,6 +274,10 @@ namespace osu.Game.Rulesets.Scoring
         private void updateScore()
         {
             Accuracy.Value = currentMaximumScoringValues.BaseScore > 0 ? (double)currentScoringValues.BaseScore / currentMaximumScoringValues.BaseScore : 1;
+            IncreaseAccuracy.Value = maximumScoringValues.BaseScore > 0 ? (double)currentScoringValues.BaseScore / maximumScoringValues.BaseScore : 0;
+            DecreaseAccuracy.Value = maximumScoringValues.BaseScore > 0
+                ? (double)(maximumScoringValues.BaseScore - (currentMaximumScoringValues.BaseScore - currentScoringValues.BaseScore)) / maximumScoringValues.BaseScore
+                : 1;
             TotalScore.Value = computeScore(Mode.Value, currentScoringValues, maximumScoringValues);
         }
 
diff --git a/osu.Game/Screens/Play/HUD/GameplayAccuracyCounter.cs b/osu.Game/Screens/Play/HUD/GameplayAccuracyCounter.cs
index 1933193515..f8848f57b9 100644
--- a/osu.Game/Screens/Play/HUD/GameplayAccuracyCounter.cs
+++ b/osu.Game/Screens/Play/HUD/GameplayAccuracyCounter.cs
@@ -4,6 +4,8 @@
 #nullable disable
 
 using osu.Framework.Allocation;
+using osu.Framework.Bindables;
+using osu.Game.Configuration;
 using osu.Game.Graphics.UserInterface;
 using osu.Game.Rulesets.Scoring;
 
@@ -11,10 +13,38 @@ namespace osu.Game.Screens.Play.HUD
 {
     public abstract partial class GameplayAccuracyCounter : PercentageCounter
     {
+        [SettingSource("Accuracy Display Mode")]
+        public Bindable<AccuracyType> AccType { get; } = new Bindable<AccuracyType>();
+
         [BackgroundDependencyLoader]
         private void load(ScoreProcessor scoreProcessor)
         {
-            Current.BindTo(scoreProcessor.Accuracy);
+            AccType.BindValueChanged(mod =>
+            {
+                Current.UnbindBindings();
+
+                switch (mod.NewValue)
+                {
+                    case AccuracyType.Current:
+                        Current.BindTo(scoreProcessor.Accuracy);
+                        break;
+
+                    case AccuracyType.Increase:
+                        Current.BindTo(scoreProcessor.IncreaseAccuracy);
+                        break;
+
+                    case AccuracyType.Decrease:
+                        Current.BindTo(scoreProcessor.DecreaseAccuracy);
+                        break;
+                }
+            }, true);
+        }
+
+        public enum AccuracyType
+        {
+            Current,
+            Increase,
+            Decrease
         }
     }
 }