[unity] `BoneFollower` and `BoneFollowerGraphic` now provide an additional `Follow Parent World Scale` parameter.

CHANGELOG.md

@@ -159,6 +159,7 @@
   * Prefabs containing `SkeletonRenderer`, `SkeletonAnimation` and `SkeletonMecanim` now provide a proper Editor preview, including the preview thumbnail.
   * `SkeletonRenderer` (and subclasses`SkeletonAnimation` and `SkeletonMecanim`) now provide a property `Advanced - Fix Prefab Override MeshFilter`, which when enabled fixes the prefab always being marked as changed. It sets the MeshFilter's hide flags to `DontSaveInEditor`. Unfortunately this comes at the cost of references to the `MeshFilter` by other components being lost, therefore this parameter defaults to `false` to keep the safe existing behaviour.
   * `BoundingBoxFollower` and `BoundingBoxFollowerGraphic` now provide previously missing `usedByEffector` and `usedByComposite` parameters to be set at all generated colliders.
+  * `BoneFollower` and `BoneFollowerGraphic` now provide an additional `Follow Parent World Scale` parameter to allow following simple scale of parent bones (rotated/skewed scale can't be supported).
 
 * **Changes of default values**
 

spine-unity/Assets/Spine/Editor/spine-unity/Editor/Components/BoneFollowerGraphicInspector.cs

@@ -40,7 +40,7 @@ namespace Spine.Unity.Editor {
 	public class BoneFollowerGraphicInspector : Editor {
 
 		SerializedProperty boneName, skeletonGraphic, followXYPosition, followZPosition, followBoneRotation,
-			followLocalScale, followSkeletonFlip, maintainedAxisOrientation;
+			followLocalScale, followParentWorldScale, followSkeletonFlip, maintainedAxisOrientation;
 		BoneFollowerGraphic targetBoneFollower;
 		bool needsReset;
 
@@ -77,6 +77,7 @@ namespace Spine.Unity.Editor {
 			followXYPosition = serializedObject.FindProperty("followXYPosition");
 			followZPosition = serializedObject.FindProperty("followZPosition");
 			followLocalScale = serializedObject.FindProperty("followLocalScale");
+			followParentWorldScale = serializedObject.FindProperty("followParentWorldScale");
 			followSkeletonFlip = serializedObject.FindProperty("followSkeletonFlip");
 			maintainedAxisOrientation = serializedObject.FindProperty("maintainedAxisOrientation");
 
@@ -172,6 +173,7 @@ namespace Spine.Unity.Editor {
 				EditorGUILayout.PropertyField(followXYPosition);
 				EditorGUILayout.PropertyField(followZPosition);
 				EditorGUILayout.PropertyField(followLocalScale);
+				EditorGUILayout.PropertyField(followParentWorldScale);
 				EditorGUILayout.PropertyField(followSkeletonFlip);
 				if ((followSkeletonFlip.hasMultipleDifferentValues || followSkeletonFlip.boolValue == false) &&
 					(followBoneRotation.hasMultipleDifferentValues || followBoneRotation.boolValue == true)) {

spine-unity/Assets/Spine/Editor/spine-unity/Editor/Components/BoneFollowerInspector.cs

@@ -38,12 +38,12 @@ namespace Spine.Unity.Editor {
 	[CustomEditor(typeof(BoneFollower)), CanEditMultipleObjects]
 	public class BoneFollowerInspector : Editor {
 		SerializedProperty boneName, skeletonRenderer, followXYPosition, followZPosition, followBoneRotation,
-			followLocalScale, followSkeletonFlip, maintainedAxisOrientation;
+			followLocalScale, followParentWorldScale, followSkeletonFlip, maintainedAxisOrientation;
 		BoneFollower targetBoneFollower;
 		bool needsReset;
 
 		#region Context Menu Item
-		[MenuItem("CONTEXT/SkeletonRenderer/Add BoneFollower GameObject")]
+		[MenuItem ("CONTEXT/SkeletonRenderer/Add BoneFollower GameObject")]
 		static void AddBoneFollowerGameObject (MenuCommand cmd) {
 			var skeletonRenderer = cmd.context as SkeletonRenderer;
 			var go = EditorInstantiation.NewGameObject("New BoneFollower", true);
@@ -60,7 +60,7 @@ namespace Spine.Unity.Editor {
 		}
 
 		// Validate
-		[MenuItem("CONTEXT/SkeletonRenderer/Add BoneFollower GameObject", true)]
+		[MenuItem ("CONTEXT/SkeletonRenderer/Add BoneFollower GameObject", true)]
 		static bool ValidateAddBoneFollowerGameObject (MenuCommand cmd) {
 			var skeletonRenderer = cmd.context as SkeletonRenderer;
 			return skeletonRenderer.valid;
@@ -86,6 +86,7 @@ namespace Spine.Unity.Editor {
 			followXYPosition = serializedObject.FindProperty("followXYPosition");
 			followZPosition = serializedObject.FindProperty("followZPosition");
 			followLocalScale = serializedObject.FindProperty("followLocalScale");
+			followParentWorldScale = serializedObject.FindProperty("followParentWorldScale");
 			followSkeletonFlip = serializedObject.FindProperty("followSkeletonFlip");
 			maintainedAxisOrientation = serializedObject.FindProperty("maintainedAxisOrientation");
 
@@ -178,6 +179,7 @@ namespace Spine.Unity.Editor {
 				EditorGUILayout.PropertyField(followXYPosition);
 				EditorGUILayout.PropertyField(followZPosition);
 				EditorGUILayout.PropertyField(followLocalScale);
+				EditorGUILayout.PropertyField(followParentWorldScale);
 				EditorGUILayout.PropertyField(followSkeletonFlip);
 				if ((followSkeletonFlip.hasMultipleDifferentValues || followSkeletonFlip.boolValue == false) &&
 					(followBoneRotation.hasMultipleDifferentValues || followBoneRotation.boolValue == true)) {

spine-unity/Assets/Spine/Runtime/spine-unity/Components/Following/BoneFollower.cs

@@ -67,9 +67,11 @@ namespace Spine.Unity {
 		[Tooltip("Follows the skeleton's flip state by controlling this Transform's local scale.")]
 		public bool followSkeletonFlip = true;
 
-		[Tooltip("Follows the target bone's local scale. BoneFollower cannot inherit world/skewed scale because of UnityEngine.Transform property limitations.")]
+		[Tooltip("Follows the target bone's local scale.")]
 		[UnityEngine.Serialization.FormerlySerializedAs("followScale")]
 		public bool followLocalScale = false;
+		[Tooltip("Includes the parent bone's lossy world scale. BoneFollower cannot inherit rotated/skewed scale because of UnityEngine.Transform property limitations.")]
+		public bool followParentWorldScale = false;
 
 		public enum AxisOrientation {
 			XAxis = 1,
@@ -206,10 +208,14 @@ namespace Spine.Unity {
 												* skeletonLossyScale.y * parentLossyScale.y);
 			}
 
-			Vector3 localScale = followLocalScale ? new Vector3(bone.ScaleX, bone.ScaleY, 1f) : new Vector3(1f, 1f, 1f);
+			Bone parentBone = bone.Parent;
+			Vector3 localScale = new Vector3(1f, 1f, 1f);
+			if (followParentWorldScale && parentBone != null)
+				localScale = new Vector3(parentBone.WorldScaleX, parentBone.WorldScaleY, 1f);
+			if (followLocalScale)
+				localScale.Scale(new Vector3(bone.ScaleX, bone.ScaleY, 1f));
 			if (followSkeletonFlip)
 				localScale.y *= Mathf.Sign(bone.Skeleton.ScaleX * bone.Skeleton.ScaleY) * additionalFlipScale;
-
 			thisTransform.localScale = localScale;
 		}
 	}

spine-unity/Assets/Spine/Runtime/spine-unity/Components/Following/BoneFollowerGraphic.cs

@@ -64,8 +64,10 @@ namespace Spine.Unity {
 		public bool followBoneRotation = true;
 		[Tooltip("Follows the skeleton's flip state by controlling this Transform's local scale.")]
 		public bool followSkeletonFlip = true;
-		[Tooltip("Follows the target bone's local scale. BoneFollower cannot inherit world/skewed scale because of UnityEngine.Transform property limitations.")]
+		[Tooltip("Follows the target bone's local scale.")]
 		public bool followLocalScale = false;
+		[Tooltip("Includes the parent bone's lossy world scale. BoneFollower cannot inherit rotated/skewed scale because of UnityEngine.Transform property limitations.")]
+		public bool followParentWorldScale = false;
 		public bool followXYPosition = true;
 		public bool followZPosition = true;
 		[Tooltip("Applies when 'Follow Skeleton Flip' is disabled but 'Follow Bone Rotation' is enabled."
@@ -185,7 +187,12 @@ namespace Spine.Unity {
 												* skeletonLossyScale.y * parentLossyScale.y);
 			}
 
-			Vector3 localScale = followLocalScale ? new Vector3(bone.ScaleX, bone.ScaleY, 1f) : new Vector3(1f, 1f, 1f);
+			Bone parentBone = bone.Parent;
+			Vector3 localScale = new Vector3(1f, 1f, 1f);
+			if (followParentWorldScale && parentBone != null)
+				localScale = new Vector3(parentBone.WorldScaleX, parentBone.WorldScaleY, 1f);
+			if (followLocalScale)
+				localScale.Scale(new Vector3(bone.ScaleX, bone.ScaleY, 1f));
 			if (followSkeletonFlip)
 				localScale.y *= Mathf.Sign(bone.Skeleton.ScaleX * bone.Skeleton.ScaleY) * additionalFlipScale;
 			thisTransform.localScale = localScale;