From 26df02443f3a579b02bb8ebe8e8cc4dcd02719e2 Mon Sep 17 00:00:00 2001
From: Nathan Sweet <nathan.sweet@gmail.com>
Date: Sun, 20 Apr 2025 15:33:06 -0400
Subject: [PATCH] [libgdx] Fixed slot color. Inline setConstrained() for
 internal code.

---
 .../src/com/esotericsoftware/spine/Posed.java |  8 -----
 .../com/esotericsoftware/spine/Skeleton.java  | 30 +++++++++++++------
 .../src/com/esotericsoftware/spine/Slot.java  |  4 +--
 .../spine/TransformConstraint.java            |  2 +-
 4 files changed, 24 insertions(+), 20 deletions(-)

diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Posed.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Posed.java
index 7f76cee50..7b2eb254c 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Posed.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Posed.java
@@ -36,14 +36,6 @@ abstract public class Posed< //
 		return applied;
 	}
 
-	void setConstrained (boolean constrained) {
-		applied = constrained ? this.constrained : (A)pose;
-	}
-
-	void resetAppliedPose () {
-		applied.set(pose);
-	}
-
 	public String toString () {
 		return data.name;
 	}
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Skeleton.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Skeleton.java
index 77dd7b296..9581b58d2 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Skeleton.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Skeleton.java
@@ -154,13 +154,19 @@ public class Skeleton {
 		updateCache.clear();
 		resetCache.clear();
 
+		Slot[] slots = this.slots.items;
+		for (int i = 0, n = this.slots.size; i < n; i++) {
+			Slot slot = slots[i];
+			slot.applied = slot.pose;
+		}
+
 		int boneCount = bones.size;
 		Bone[] bones = this.bones.items;
 		for (int i = 0; i < boneCount; i++) {
 			Bone bone = bones[i];
 			bone.sorted = bone.data.skinRequired;
 			bone.active = !bone.sorted;
-			bone.setConstrained(false);
+			bone.applied = (BonePose)bone.pose;
 		}
 		if (skin != null) {
 			BoneData[] skinBones = skin.bones.items;
@@ -176,8 +182,10 @@ public class Skeleton {
 
 		Constraint[] constraints = this.constraints.items;
 		int n = this.constraints.size;
-		for (int i = 0; i < n; i++)
-			constraints[i].setConstrained(false);
+		for (int i = 0; i < n; i++) {
+			Constraint constraint = constraints[i];
+			constraint.applied = constraint.pose;
+		}
 		for (int i = 0; i < n; i++) {
 			Constraint<?, ?, ?> constraint = constraints[i];
 			constraint.active = constraint.isSourceActive()
@@ -196,7 +204,7 @@ public class Skeleton {
 
 	void resetCache (Posed object) {
 		if (object.pose == object.applied) {
-			object.setConstrained(true);
+			object.applied = object.constrained;
 			resetCache.add(object);
 		}
 	}
@@ -228,8 +236,10 @@ public class Skeleton {
 		update++;
 
 		Posed[] resetCache = this.resetCache.items;
-		for (int i = 0, n = this.resetCache.size; i < n; i++)
-			resetCache[i].resetAppliedPose();
+		for (int i = 0, n = this.resetCache.size; i < n; i++) {
+			Posed object = resetCache[i];
+			object.applied.set(object.pose);
+		}
 
 		Object[] updateCache = this.updateCache.items;
 		for (int i = 0, n = this.updateCache.size; i < n; i++)
@@ -241,14 +251,16 @@ public class Skeleton {
 	 * <p>
 	 * See <a href="https://esotericsoftware.com/spine-runtime-skeletons#World-transforms">World transforms</a> in the Spine
 	 * Runtimes Guide. */
-	public void updateWorldTransform (Physics physics, BonePose parent) {
+	public void updateWorldTransform (Physics physics, BonePose parent) { // Do not port.
 		if (parent == null) throw new IllegalArgumentException("parent cannot be null.");
 
 		update++;
 
 		Posed[] resetCache = this.resetCache.items;
-		for (int i = 0, n = this.resetCache.size; i < n; i++)
-			resetCache[i].resetAppliedPose();
+		for (int i = 0, n = this.resetCache.size; i < n; i++) {
+			Posed object = resetCache[i];
+			object.applied.set(object.pose);
+		}
 
 		// Apply the parent bone transform to the root bone. The root bone always inherits scale, rotation and reflection.
 		BonePose rootBone = getRootBone().applied;
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Slot.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Slot.java
index f19569f76..d4c3cdb44 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Slot.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Slot.java
@@ -46,7 +46,7 @@ public class Slot extends Posed<SlotData, SlotPose, SlotPose> {
 		bone = skeleton.bones.items[data.boneData.index];
 		if (data.setup.darkColor != null) {
 			pose.darkColor = new Color();
-			applied.darkColor = new Color();
+			constrained.darkColor = new Color();
 		}
 		setupPose();
 	}
@@ -60,7 +60,7 @@ public class Slot extends Posed<SlotData, SlotPose, SlotPose> {
 		this.skeleton = skeleton;
 		if (data.setup.darkColor != null) {
 			pose.darkColor = new Color();
-			applied.darkColor = new Color();
+			constrained.darkColor = new Color();
 		}
 		pose.set(slot.pose);
 	}
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 8a843df93..692b9a238 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/TransformConstraint.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/TransformConstraint.java
@@ -97,7 +97,7 @@ public class TransformConstraint extends Constraint<TransformConstraint, Transfo
 			}
 			if (localTarget)
 				bone.updateWorldTransform(skeleton);
-			else 
+			else
 				bone.localDirty = true;
 			bone.bone.resetUpdate(skeleton);
 		}