From 480a4b18b78e66570c82fbd0ec61094f29e5b5c3 Mon Sep 17 00:00:00 2001
From: Harald Csaszar <harald.csaszar@pixelcloudgames.com>
Date: Mon, 5 May 2025 21:30:28 +0200
Subject: [PATCH] [unity] Fixed BoundingBoxFollower and
 BoundingBoxFollowerGraphic ignoring deactivated skin bone. Closes #2836.

---
 .../Components/Following/BoundingBoxFollower.cs          | 9 ++++++---
 .../Components/Following/BoundingBoxFollowerGraphic.cs   | 7 +++++--
 spine-unity/Assets/Spine/package.json                    | 2 +-
 3 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Following/BoundingBoxFollower.cs b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Following/BoundingBoxFollower.cs
index 7e5bc6210..c762e71da 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Following/BoundingBoxFollower.cs
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Following/BoundingBoxFollower.cs
@@ -57,7 +57,7 @@ namespace Spine.Unity {
 		BoundingBoxAttachment currentAttachment;
 		string currentAttachmentName;
 		PolygonCollider2D currentCollider;
-
+		bool skinBoneEnabled = true;
 		public readonly Dictionary<BoundingBoxAttachment, PolygonCollider2D> colliderTable = new Dictionary<BoundingBoxAttachment, PolygonCollider2D>();
 		public readonly Dictionary<BoundingBoxAttachment, string> nameTable = new Dictionary<BoundingBoxAttachment, string>();
 
@@ -132,6 +132,7 @@ namespace Spine.Unity {
 					AddCollidersForSkin(skeleton.Skin, slotIndex, colliders, ref requiredCollidersCount);
 			}
 			DisposeExcessCollidersAfter(requiredCollidersCount);
+			skinBoneEnabled = slot.Bone.Active;
 
 			if (BoundingBoxFollower.DebugMessages) {
 				bool valid = colliderTable.Count != 0;
@@ -210,8 +211,10 @@ namespace Spine.Unity {
 		}
 
 		void LateUpdate () {
-			if (slot != null && slot.Attachment != currentAttachment)
+			if (slot != null && (slot.Attachment != currentAttachment || skinBoneEnabled != slot.Bone.Active)) {
+				skinBoneEnabled = slot.Bone.Active;
 				MatchAttachment(slot.Attachment);
+			}
 		}
 
 		/// <summary>Sets the current collider to match attachment.</summary>
@@ -225,7 +228,7 @@ namespace Spine.Unity {
 			if (currentCollider != null)
 				currentCollider.enabled = false;
 
-			if (bbAttachment == null) {
+			if (bbAttachment == null || !skinBoneEnabled) {
 				currentCollider = null;
 				currentAttachment = null;
 				currentAttachmentName = null;
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Following/BoundingBoxFollowerGraphic.cs b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Following/BoundingBoxFollowerGraphic.cs
index dcc46b3ea..237b55cc9 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Following/BoundingBoxFollowerGraphic.cs
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/Following/BoundingBoxFollowerGraphic.cs
@@ -57,7 +57,7 @@ namespace Spine.Unity {
 		BoundingBoxAttachment currentAttachment;
 		string currentAttachmentName;
 		PolygonCollider2D currentCollider;
-
+		bool skinBoneEnabled = true;
 		public readonly Dictionary<BoundingBoxAttachment, PolygonCollider2D> colliderTable = new Dictionary<BoundingBoxAttachment, PolygonCollider2D>();
 		public readonly Dictionary<BoundingBoxAttachment, string> nameTable = new Dictionary<BoundingBoxAttachment, string>();
 
@@ -133,6 +133,7 @@ namespace Spine.Unity {
 					AddCollidersForSkin(skeleton.Skin, slotIndex, colliders, scale, ref requiredCollidersCount);
 			}
 			DisposeExcessCollidersAfter(requiredCollidersCount);
+			skinBoneEnabled = slot.Bone.Active;
 
 			if (BoundingBoxFollowerGraphic.DebugMessages) {
 				bool valid = colliderTable.Count != 0;
@@ -211,8 +212,10 @@ namespace Spine.Unity {
 		}
 
 		void LateUpdate () {
-			if (slot != null && slot.Attachment != currentAttachment)
+			if (slot != null && (slot.Attachment != currentAttachment || skinBoneEnabled != slot.Bone.Active)) {
+				skinBoneEnabled = slot.Bone.Active;
 				MatchAttachment(slot.Attachment);
+			}
 		}
 
 		/// <summary>Sets the current collider to match attachment.</summary>
diff --git a/spine-unity/Assets/Spine/package.json b/spine-unity/Assets/Spine/package.json
index 6f5192b2e..cc1ebb380 100644
--- a/spine-unity/Assets/Spine/package.json
+++ b/spine-unity/Assets/Spine/package.json
@@ -2,7 +2,7 @@
 	"name": "com.esotericsoftware.spine.spine-unity",
 	"displayName": "spine-unity Runtime",
 	"description": "This plugin provides the spine-unity runtime core.",
-	"version": "4.2.102",
+	"version": "4.2.103",
 	"unity": "2018.3",
 	"author": {
 		"name": "Esoteric Software",