From 1cd11a6e5b78d8891e16d6cd98da290de3608239 Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Wed, 3 Oct 2018 17:06:18 +0900
Subject: [PATCH] Fix StackHeight changes not causing position updates

---
 .../Objects/Drawables/DrawableHitCircle.cs       |  1 +
 osu.Game.Rulesets.Osu/Objects/OsuHitObject.cs    | 16 +++++++++++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/osu.Game.Rulesets.Osu/Objects/Drawables/DrawableHitCircle.cs b/osu.Game.Rulesets.Osu/Objects/Drawables/DrawableHitCircle.cs
index 4bdddcef11..8b0973e3d3 100644
--- a/osu.Game.Rulesets.Osu/Objects/Drawables/DrawableHitCircle.cs
+++ b/osu.Game.Rulesets.Osu/Objects/Drawables/DrawableHitCircle.cs
@@ -61,6 +61,7 @@ namespace osu.Game.Rulesets.Osu.Objects.Drawables
             Size = circle.DrawSize;
 
             HitObject.PositionChanged += _ => Position = HitObject.StackedPosition;
+            HitObject.StackHeightChanged += _ => Position = HitObject.StackedPosition;
         }
 
         public override Color4 AccentColour
diff --git a/osu.Game.Rulesets.Osu/Objects/OsuHitObject.cs b/osu.Game.Rulesets.Osu/Objects/OsuHitObject.cs
index fdf5aaffa8..ab8f01f5d3 100644
--- a/osu.Game.Rulesets.Osu/Objects/OsuHitObject.cs
+++ b/osu.Game.Rulesets.Osu/Objects/OsuHitObject.cs
@@ -16,6 +16,7 @@ namespace osu.Game.Rulesets.Osu.Objects
         public const double OBJECT_RADIUS = 64;
 
         public event Action<Vector2> PositionChanged;
+        public event Action<int> StackHeightChanged;
 
         public double TimePreempt = 600;
         public double TimeFadeIn = 400;
@@ -44,7 +45,20 @@ namespace osu.Game.Rulesets.Osu.Objects
 
         public Vector2 StackedEndPosition => EndPosition + StackOffset;
 
-        public virtual int StackHeight { get; set; }
+        private int stackHeight;
+
+        public int StackHeight
+        {
+            get => stackHeight;
+            set
+            {
+                if (stackHeight == value)
+                    return;
+                stackHeight = value;
+
+                StackHeightChanged?.Invoke(value);
+            }
+        }
 
         public Vector2 StackOffset => new Vector2(StackHeight * Scale * -6.4f);