From a2d2ed2ef68565a72b3560e81ad3957500d2afa3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bart=C5=82omiej=20Dach?= <dach.bartlomiej@gmail.com>
Date: Sun, 22 Aug 2021 16:49:27 +0200
Subject: [PATCH] Add stack leniency setting for osu!

---
 .../Edit/Setup/OsuSetupSection.cs             | 52 +++++++++++++++++++
 osu.Game.Rulesets.Osu/OsuRuleset.cs           |  4 ++
 2 files changed, 56 insertions(+)
 create mode 100644 osu.Game.Rulesets.Osu/Edit/Setup/OsuSetupSection.cs

diff --git a/osu.Game.Rulesets.Osu/Edit/Setup/OsuSetupSection.cs b/osu.Game.Rulesets.Osu/Edit/Setup/OsuSetupSection.cs
new file mode 100644
index 0000000000..8cb778a2e1
--- /dev/null
+++ b/osu.Game.Rulesets.Osu/Edit/Setup/OsuSetupSection.cs
@@ -0,0 +1,52 @@
+// 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.Game.Graphics.UserInterfaceV2;
+using osu.Game.Screens.Edit.Setup;
+
+namespace osu.Game.Rulesets.Osu.Edit.Setup
+{
+    public class OsuSetupSection : RulesetSetupSection
+    {
+        private LabelledSliderBar<float> stackLeniency;
+
+        public OsuSetupSection()
+            : base(new OsuRuleset().RulesetInfo)
+        {
+        }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Children = new[]
+            {
+                stackLeniency = new LabelledSliderBar<float>
+                {
+                    Label = "Stack Leniency",
+                    Description = "In play mode, osu! automatically stacks notes which occur at the same location. Increasing this value means it is more likely to snap notes of further time-distance.",
+                    Current = new BindableFloat(Beatmap.BeatmapInfo.StackLeniency)
+                    {
+                        Default = 0.7f,
+                        MinValue = 0,
+                        MaxValue = 1,
+                        Precision = 0.1f
+                    }
+                }
+            };
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            stackLeniency.Current.BindValueChanged(_ => updateBeatmap());
+        }
+
+        private void updateBeatmap()
+        {
+            Beatmap.BeatmapInfo.StackLeniency = stackLeniency.Current.Value;
+        }
+    }
+}
diff --git a/osu.Game.Rulesets.Osu/OsuRuleset.cs b/osu.Game.Rulesets.Osu/OsuRuleset.cs
index b13cdff1ec..97af7d28af 100644
--- a/osu.Game.Rulesets.Osu/OsuRuleset.cs
+++ b/osu.Game.Rulesets.Osu/OsuRuleset.cs
@@ -30,9 +30,11 @@ using osu.Game.Skinning;
 using System;
 using System.Linq;
 using osu.Framework.Extensions.EnumExtensions;
+using osu.Game.Rulesets.Osu.Edit.Setup;
 using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.Osu.Skinning.Legacy;
 using osu.Game.Rulesets.Osu.Statistics;
+using osu.Game.Screens.Edit.Setup;
 using osu.Game.Screens.Ranking.Statistics;
 
 namespace osu.Game.Rulesets.Osu
@@ -305,5 +307,7 @@ namespace osu.Game.Rulesets.Osu
                 }
             };
         }
+
+        public override RulesetSetupSection CreateEditorSetupSectionForRuleset() => new OsuSetupSection();
     }
 }