[unity] Fixed BoundingBoxFollower using wrong space.

spine-unity/Assets/spine-unity/Modules/AttachmentTools/AttachmentTools.cs

@@ -33,7 +33,7 @@ using System.Collections.Generic;
 
 namespace Spine.Unity.Modules.AttachmentTools {
 	public static class AttachmentRegionExtensions {
-		#region Get
+		#region GetRegion
 		/// <summary>
 		/// Tries to get the region (image) of a renderable attachment. If the attachment is not renderable, it returns null.</summary>
 		public static AtlasRegion GetRegion (this Attachment attachment) {
@@ -58,8 +58,7 @@ namespace Spine.Unity.Modules.AttachmentTools {
 			return meshAttachment.RendererObject as AtlasRegion;
 		}
 		#endregion
-
+		#region SetRegion
-		#region Set
 		/// <summary>
 		/// Tries to set the region (image) of a renderable attachment. If the attachment is not renderable, nothing is applied.</summary>
 		public static void SetRegion (this Attachment attachment, AtlasRegion region, bool updateOffset = true) {
@@ -69,7 +68,7 @@ namespace Spine.Unity.Modules.AttachmentTools {
 
 			var meshAttachment = attachment as MeshAttachment;
 			if (meshAttachment != null)
-					meshAttachment.SetRegion(region, updateOffset);
+				meshAttachment.SetRegion(region, updateOffset);
 		}
 
 		/// <summary>Sets the region (image) of a RegionAttachment</summary>

spine-unity/Assets/spine-unity/Modules/BoundingBoxFollower/Editor/BoundingBoxFollowerInspector.cs

@@ -33,6 +33,7 @@ using UnityEditor;
 
 namespace Spine.Unity.Editor {
 	using Event = UnityEngine.Event;
+	using Icons = SpineEditorUtilities.Icons;
 
 	[CustomEditor(typeof(BoundingBoxFollower))]
 	public class BoundingBoxFollowerInspector : UnityEditor.Editor {
@@ -43,7 +44,13 @@ namespace Spine.Unity.Editor {
 		bool sceneRepaintRequired = false;
 		bool debugIsExpanded;
 
-		readonly GUIContent AddBoneFollowerLabel = new GUIContent("Add Bone Follower", SpineEditorUtilities.Icons.bone);
+		GUIContent addBoneFollowerLabel;
+		GUIContent AddBoneFollowerLabel {
+			get {
+				if (addBoneFollowerLabel == null) addBoneFollowerLabel = new GUIContent("Add Bone Follower", Icons.bone);
+				return addBoneFollowerLabel;
+			}
+		}
 
 		void OnEnable () {
 			skeletonRenderer = serializedObject.FindProperty("skeletonRenderer");
@@ -73,7 +80,7 @@ namespace Spine.Unity.Editor {
 				using (new EditorGUILayout.VerticalScope(EditorStyles.helpBox)) {
 					EditorGUILayout.HelpBox("It's ideal to add BoundingBoxFollower to a separate child GameObject of the Spine GameObject.", MessageType.Warning);
 
-					if (GUILayout.Button(new GUIContent("Move BoundingBoxFollower to new GameObject", SpineEditorUtilities.Icons.boundingBox), GUILayout.Height(50f))) {
+					if (GUILayout.Button(new GUIContent("Move BoundingBoxFollower to new GameObject", Icons.boundingBox), GUILayout.Height(50f))) {
 						AddBoundingBoxFollowerChild(sr, follower);
 						DestroyImmediate(follower);
 						return;
@@ -127,7 +134,7 @@ namespace Spine.Unity.Editor {
 							string attachmentName = kp.Value;
 							var collider = follower.colliderTable[kp.Key];
 							bool isPlaceholder = attachmentName != kp.Key.Name;
-							collider.enabled = EditorGUILayout.ToggleLeft(new GUIContent(!isPlaceholder ? attachmentName : attachmentName + " [" + kp.Key.Name + "]", isPlaceholder ? SpineEditorUtilities.Icons.skinPlaceholder : SpineEditorUtilities.Icons.boundingBox), collider.enabled);
+							collider.enabled = EditorGUILayout.ToggleLeft(new GUIContent(!isPlaceholder ? attachmentName : string.Format("{0} [{1}]", attachmentName, kp.Key.Name), isPlaceholder ? Icons.skinPlaceholder : Icons.boundingBox), collider.enabled);
 						}
 						sceneRepaintRequired |= EditorGUI.EndChangeCheck();
 						EditorGUI.indentLevel--;

spine-unity/Assets/spine-unity/SkeletonExtensions.cs

@@ -129,6 +129,15 @@ namespace Spine.Unity {
 				m33 = 1
 			};
 		}
+
+		public static void GetWorldToLocalMatrix (this Bone bone, out float ia, out float ib, out float ic, out float id) {
+			float a = bone.a, b = bone.b, c = bone.c, d = bone.d;
+			float invDet = 1 / (a * d - b * c);
+			ia = invDet * d;
+			ib = invDet * -b;
+			ic = invDet * -c;
+			id = invDet * a;
+		}
 		#endregion
 
 		#region Attachments
@@ -144,9 +153,43 @@ namespace Spine.Unity {
 			return null;
 		}
 
+		/// <summary>Fills a Vector2 buffer with local vertices.</summary>
+		/// <param name="va">The VertexAttachment</param>
+		/// <param name="slot">Slot where the attachment belongs.</param>
+		/// <param name="buffer">Correctly-sized buffer. Use attachment's .WorldVerticesLength to get the correct size. If null, a new Vector2[] of the correct size will be allocated.</param>
+		public static Vector2[] GetLocalVertices (this VertexAttachment va, Slot slot, Vector2[] buffer) {
+			int floatsCount = va.worldVerticesLength;
+			int bufferTargetSize = floatsCount >> 1;
+			buffer = buffer ?? new Vector2[bufferTargetSize];
+			if (buffer.Length < bufferTargetSize) throw new System.ArgumentException(string.Format("Vector2 buffer too small. {0} requires an array of size {1}. Use the attachment's .WorldVerticesLength to get the correct size.", va.Name, floatsCount), "buffer");
+
+			if (va.bones == null) {
+				var localVerts = va.vertices;
+				for (int i = 0; i < bufferTargetSize; i++) {
+					int j = i * 2;
+					buffer[i] = new Vector2(localVerts[j], localVerts[j+1]);
+				}
+			} else {
+				var floats = new float[floatsCount];
+				va.ComputeWorldVertices(slot, floats);
+
+				Bone sb = slot.bone;
+				float bwx = sb.worldX, bwy = sb.worldY, ia, ib, ic, id;
+				sb.GetWorldToLocalMatrix(out ia, out ib, out ic, out id);
+
+				for (int i = 0; i < bufferTargetSize; i++) {
+					int j = i * 2;
+					float x = floats[j] - bwx, y = floats[j+1] - bwy;
+					buffer[i] = new Vector2(x * ia + y * ic, x * ib + y * id);
+				}
+			}
+
+			return buffer;
+		}
+
 		/// <summary>Calculates world vertices and fills a Vector2 buffer.</summary>
 		/// <param name="a">The VertexAttachment</param>
-		/// <param name="slot">Slot where </param>
+		/// <param name="slot">Slot where the attachment belongs.</param>
 		/// <param name="buffer">Correctly-sized buffer. Use attachment's .WorldVerticesLength to get the correct size. If null, a new Vector2[] of the correct size will be allocated.</param>
 		public static Vector2[] GetWorldVertices (this VertexAttachment a, Slot slot, Vector2[] buffer) {
 			int worldVertsLength = a.worldVerticesLength;

spine-unity/Assets/spine-unity/SkeletonUtility/SkeletonUtility.cs

@@ -68,7 +68,7 @@ namespace Spine.Unity {
 		public static PolygonCollider2D AddBoundingBoxAsComponent (BoundingBoxAttachment box, Slot slot, GameObject gameObject, bool isTrigger = true) {
 			if (box == null) return null;
 			if (box.IsWeighted()) Debug.LogWarning("UnityEngine.PolygonCollider2D does not support weighted or animated points. Collider will not be animated. Please remove weights and animations from the bounding box in Spine editor.");
-			var verts = box.GetWorldVertices(slot, null);
+			var verts = box.GetLocalVertices(slot, null);
 			var collider = gameObject.AddComponent<PolygonCollider2D>();
 			collider.isTrigger = isTrigger;
 			collider.SetPath(0, verts);