From db69ea75ce5c61d52637c7a011571489103a4da0 Mon Sep 17 00:00:00 2001
From: Nathan Sweet <nathan.sweet@gmail.com>
Date: Sat, 19 Apr 2025 21:30:08 -0400
Subject: [PATCH] [libgdx] resetUpdate improvements.

---
 .../spine-libgdx/src/com/esotericsoftware/spine/Bone.java    | 5 +++--
 .../src/com/esotericsoftware/spine/IkConstraint.java         | 3 +++
 .../src/com/esotericsoftware/spine/PathConstraint.java       | 1 +
 .../src/com/esotericsoftware/spine/PhysicsConstraint.java    | 1 +
 .../spine-libgdx/src/com/esotericsoftware/spine/Slider.java  | 2 +-
 .../src/com/esotericsoftware/spine/TransformConstraint.java  | 1 +
 6 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Bone.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Bone.java
index f01b08cba..8f128925c 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Bone.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Bone.java
@@ -66,10 +66,11 @@ public class Bone extends PosedActive<BoneData, BoneLocal, BonePose> {
 		return children;
 	}
 
-	void resetUpdate () {
+	void resetUpdate (Skeleton skeleton) {
+		if (applied.update != skeleton.update) return;
 		applied.update = 0;
 		Bone[] children = this.children.items;
 		for (int i = 0, n = this.children.size; i < n; i++)
-			children[i].resetUpdate();
+			children[i].resetUpdate(skeleton);
 	}
 }
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/IkConstraint.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/IkConstraint.java
index e6da05415..ae15e70c6 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/IkConstraint.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/IkConstraint.java
@@ -166,6 +166,7 @@ public class IkConstraint extends Constraint<IkConstraint, IkConstraintData, IkC
 			}
 		}
 		bone.updateWorldTransform(skeleton);
+		bone.bone.resetUpdate(skeleton);
 	}
 
 	/** Applies 2 bone IK. The target is specified in the world coordinate system.
@@ -217,6 +218,7 @@ public class IkConstraint extends Constraint<IkConstraint, IkConstraintData, IkC
 			apply(skeleton, parent, targetX, targetY, false, stretch, false, alpha);
 			child.rotation = 0;
 			child.updateWorldTransform(skeleton);
+			child.bone.resetUpdate(skeleton);
 			return;
 		}
 		x = targetX - pp.worldX;
@@ -319,5 +321,6 @@ public class IkConstraint extends Constraint<IkConstraint, IkConstraintData, IkC
 			a2 += 360;
 		child.rotation += a2 * alpha;
 		child.updateWorldTransform(skeleton);
+		parent.bone.resetUpdate(skeleton);
 	}
 }
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/PathConstraint.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/PathConstraint.java
index 0b0fbabcf..5f89b4af2 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/PathConstraint.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/PathConstraint.java
@@ -197,6 +197,7 @@ public class PathConstraint extends Constraint<PathConstraint, PathConstraintDat
 				bone.d = sin * b + cos * d;
 			}
 			bone.updateLocalTransform(skeleton);
+			bone.bone.resetUpdate(skeleton);
 		}
 	}
 
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/PhysicsConstraint.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/PhysicsConstraint.java
index 2e9161470..d594aa066 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/PhysicsConstraint.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/PhysicsConstraint.java
@@ -264,6 +264,7 @@ public class PhysicsConstraint extends Constraint<PhysicsConstraint, PhysicsCons
 			ty = l * bone.c;
 		}
 		bone.updateLocalTransform(skeleton);
+		bone.bone.resetUpdate(skeleton);
 	}
 
 	void sort (Skeleton skeleton) {
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Slider.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Slider.java
index 1cb86f57b..9ce1ef0e0 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Slider.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Slider.java
@@ -60,7 +60,7 @@ public class Slider extends Constraint<Slider, SliderData, SliderPose> {
 		int timelineCount = data.animation.timelines.size;
 		Bone[] bones = skeleton.bones.items;
 		for (int i = 0; i < timelineCount; i++)
-			if (timelines[i] instanceof BoneTimeline boneTimeline) bones[boneTimeline.getBoneIndex()].resetUpdate();
+			if (timelines[i] instanceof BoneTimeline boneTimeline) bones[boneTimeline.getBoneIndex()].resetUpdate(skeleton);
 	}
 
 	void sort (Skeleton skeleton) {
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/TransformConstraint.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/TransformConstraint.java
index 7d2b65772..0e50383c7 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/TransformConstraint.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/TransformConstraint.java
@@ -97,6 +97,7 @@ public class TransformConstraint extends Constraint<TransformConstraint, Transfo
 				bone.updateWorldTransform(skeleton);
 			else
 				bone.updateLocalTransform(skeleton);
+			bone.bone.resetUpdate(skeleton);
 		}
 	}