From a7661270c0f83a7468253e9bacc4d3c61a19fde2 Mon Sep 17 00:00:00 2001
From: John <johndygit@live.com.ph>
Date: Sat, 23 Jul 2016 00:27:58 +0800
Subject: [PATCH] [unity] BoneFollower same-GameObject editor guard.

---
 .../Assets/spine-unity/Editor/BoneFollowerInspector.cs   | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/spine-unity/Assets/spine-unity/Editor/BoneFollowerInspector.cs b/spine-unity/Assets/spine-unity/Editor/BoneFollowerInspector.cs
index d6341be35..534d0510f 100644
--- a/spine-unity/Assets/spine-unity/Editor/BoneFollowerInspector.cs
+++ b/spine-unity/Assets/spine-unity/Editor/BoneFollowerInspector.cs
@@ -63,13 +63,20 @@ namespace Spine.Unity.Editor {
 			// Find Renderer
 			if (skeletonRenderer.objectReferenceValue == null) {
 				SkeletonRenderer parentRenderer = BoneFollowerInspector.GetInParent<SkeletonRenderer>(targetBoneFollower.transform);
-				if (parentRenderer != null) {
+				if (parentRenderer != null && parentRenderer.gameObject != targetBoneFollower.gameObject) {
 					Debug.Log("Inspector automatically assigned BoneFollower.SkeletonRenderer");
 					skeletonRenderer.objectReferenceValue = parentRenderer;
 				}
 			}
 
 			EditorGUILayout.PropertyField(skeletonRenderer);
+			var skeletonRendererReference = skeletonRenderer.objectReferenceValue as SkeletonRenderer;
+			if (skeletonRendererReference != null) {
+				if (skeletonRendererReference.gameObject == targetBoneFollower.gameObject) {
+					skeletonRenderer.objectReferenceValue = null;
+					EditorUtility.DisplayDialog("Invalid assignment.", "BoneFollower can only follow a skeleton on a separate GameObject.\n\nCreate a new GameObject for your BoneFollower, or choose a SkeletonRenderer from a different GameObject.", "Ok");
+				}
+			}
 
 			if (targetBoneFollower.valid) {
 				EditorGUI.BeginChangeCheck();