Merge branch '3.6' of https://github.com/esotericsoftware/spine-runtimes into 3.6

spine-unity/Assets/spine-unity/BoneFollower.cs

@@ -138,7 +138,7 @@ namespace Spine.Unity {
 				// Recommended setup: Use local transform properties if Spine GameObject is the immediate parent
 				thisTransform.localPosition = new Vector3(bone.worldX, bone.worldY, followZPosition ? 0f : thisTransform.localPosition.z);
 				if (followBoneRotation) {
-					var halfRotation = Mathf.Atan2(bone.c, bone.a) * 0.5f;
+					float halfRotation = Mathf.Atan2(bone.c, bone.a) * 0.5f;
 					if (followLocalScale && bone.scaleX < 0) // Negate rotation from negative scaleX. Don't use negative determinant. local scaleY doesn't factor into used rotation.
 						halfRotation += Mathf.PI * 0.5f;
 

spine-unity/Assets/spine-unity/Editor/SpineAttributeDrawers.cs

@@ -79,10 +79,10 @@ namespace Spine.Unity.Editor {
 				var objectReferenceValue = dataField.objectReferenceValue;
 				if (objectReferenceValue is SkeletonDataAsset) {
 					skeletonDataAsset = (SkeletonDataAsset)objectReferenceValue;
-				} else if (objectReferenceValue is ISkeletonComponent) {
-					var skeletonComponent = (ISkeletonComponent)objectReferenceValue;
-					if (skeletonComponent != null)
-						skeletonDataAsset = skeletonComponent.SkeletonDataAsset;
+				} else if (objectReferenceValue is IHasSkeletonDataAsset) {
+					var hasSkeletonDataAsset = (IHasSkeletonDataAsset)objectReferenceValue;
+					if (hasSkeletonDataAsset != null)
+						skeletonDataAsset = hasSkeletonDataAsset.SkeletonDataAsset;
 				} else if (objectReferenceValue != null) {
 					EditorGUI.LabelField(position, "ERROR:", "Invalid reference type");
 					return;
@@ -90,9 +90,9 @@ namespace Spine.Unity.Editor {
 
 			} else if (property.serializedObject.targetObject is Component) {
 				var component = (Component)property.serializedObject.targetObject;
-				var skeletonComponent = component.GetComponentInChildren(typeof(ISkeletonComponent)) as ISkeletonComponent;
-				if (skeletonComponent != null)
-					skeletonDataAsset = skeletonComponent.SkeletonDataAsset;
+				var hasSkeletonDataAsset = component.GetComponentInChildren(typeof(IHasSkeletonDataAsset)) as IHasSkeletonDataAsset;
+				if (hasSkeletonDataAsset != null)
+					skeletonDataAsset = hasSkeletonDataAsset.SkeletonDataAsset;
 			}
 
 			if (skeletonDataAsset == null) {

spine-unity/Assets/spine-unity/Editor/SpineInspectorUtility.cs

@@ -220,9 +220,9 @@ namespace Spine.Unity.Editor {
 		public static bool TargetsUseSameData (SerializedObject so) {
 			if (so.isEditingMultipleObjects) {
 				int n = so.targetObjects.Length;
-				var first = so.targetObjects[0] as ISkeletonComponent;
+				var first = so.targetObjects[0] as IHasSkeletonDataAsset;
 				for (int i = 1; i < n; i++) {
-					var sr = so.targetObjects[i] as ISkeletonComponent;
+					var sr = so.targetObjects[i] as IHasSkeletonDataAsset;
 					if (sr != null && sr.SkeletonDataAsset != first.SkeletonDataAsset)
 						return false;
 				}

spine-unity/Assets/spine-unity/ISkeletonAnimation.cs

@@ -42,7 +42,7 @@ namespace Spine.Unity {
 	}
 
 	/// <summary>Holds a reference to a SkeletonDataAsset.</summary>
-	public interface ISkeletonDataAssetComponent {
+	public interface IHasSkeletonDataAsset {
 		/// <summary>Gets the SkeletonDataAsset of the Spine Component.</summary>
 		SkeletonDataAsset SkeletonDataAsset { get; }
 	}

spine-unity/Assets/spine-unity/Modules/Shaders/Spine-Skeleton-Fill.shader

@@ -9,7 +9,7 @@ Shader "Spine/Skeleton Fill" {
 		[NoScaleOffset]_MainTex ("MainTex", 2D) = "white" {}
 	}
 	SubShader {
-		Tags { "IgnoreProjector"="True" "Queue"="Transparent" "RenderType"="Transparent" "PreviewType"="Plane" }
+		Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" "PreviewType"="Plane" }
 		Blend One OneMinusSrcAlpha
 		Cull Off
 		ZWrite Off

spine-unity/Assets/spine-unity/Modules/Shaders/Spine-Skeleton-Tint.shader

@@ -13,7 +13,7 @@ Shader "Spine/Skeleton Tint" {
 	}
 
 	SubShader {
-		Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" }
+		Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" "PreviewType"="Plane" }
 
 		Fog { Mode Off }
 		Cull Off

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

@@ -35,7 +35,7 @@ using Spine;
 namespace Spine.Unity {
 	[ExecuteInEditMode, RequireComponent(typeof(CanvasRenderer), typeof(RectTransform)), DisallowMultipleComponent]
 	[AddComponentMenu("Spine/SkeletonGraphic (Unity UI Canvas)")]
-	public class SkeletonGraphic : MaskableGraphic, ISkeletonComponent, IAnimationStateComponent, ISkeletonAnimation, ISkeletonDataAssetComponent {
+	public class SkeletonGraphic : MaskableGraphic, ISkeletonComponent, IAnimationStateComponent, ISkeletonAnimation, IHasSkeletonDataAsset {
 
 		#region Inspector
 		public SkeletonDataAsset skeletonDataAsset;

spine-unity/Assets/spine-unity/Shaders/Spine-Skeleton.shader

@@ -5,7 +5,7 @@ Shader "Spine/Skeleton" {
 	}
 
 	SubShader {
-		Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" }
+		Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" "PreviewType"="Plane"}
 
 		Fog { Mode Off }
 		Cull Off

spine-unity/Assets/spine-unity/SkeletonRenderer.cs

@@ -38,7 +38,7 @@ namespace Spine.Unity {
 	/// <summary>Renders a skeleton.</summary>
 	[ExecuteInEditMode, RequireComponent(typeof(MeshFilter), typeof(MeshRenderer)), DisallowMultipleComponent]
 	[HelpURL("http://esotericsoftware.com/spine-unity-documentation#Rendering")]
-	public class SkeletonRenderer : MonoBehaviour, ISkeletonComponent, ISkeletonDataAssetComponent {
+	public class SkeletonRenderer : MonoBehaviour, ISkeletonComponent, IHasSkeletonDataAsset {
 
 		public delegate void SkeletonRendererDelegate (SkeletonRenderer skeletonRenderer);
 		public event SkeletonRendererDelegate OnRebuild;

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

@@ -28,8 +28,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  *****************************************************************************/
 
+//#define HINGECHAIN2D
 // Contributed by: Mitch Thompson
 
+
 using UnityEngine;
 using UnityEditor;
 using System.Collections.Generic;
@@ -277,6 +279,54 @@ namespace Spine.Unity.Editor {
 			EditorGUIUtility.PingObject(go);
 		}
 
+
+#if HINGECHAIN2D
+		bool CanCreateHingeChain () {
+			if (utilityBone == null) return false;
+			if (utilityBone.GetComponent<Rigidbody2D>() != null) return false;
+			if (utilityBone.bone != null && utilityBone.bone.Children.Count == 0) return false;
+			var rigidbodies = utilityBone.GetComponentsInChildren<Rigidbody2D>();
+			return rigidbodies.Length <= 0;
+		}
+
+		void CreateHingeChain () {
+			var utilBoneArr = utilityBone.GetComponentsInChildren<SkeletonUtilityBone>();
+
+			foreach (var utilBone in utilBoneArr) {
+				if (utilBone.GetComponent<Collider2D>() == null) {
+					if (utilBone.bone.Data.Length == 0) {
+						var sphere = utilBone.gameObject.AddComponent<CircleCollider2D>();
+						sphere.radius = 0.1f;
+					} else {
+						float length = utilBone.bone.Data.Length;
+						var box = utilBone.gameObject.AddComponent<BoxCollider2D>();
+						box.size = new Vector3(length, length / 3f, 0.2f);
+						box.offset = new Vector3(length / 2f, 0, 0);
+					}
+				}
+
+				utilBone.gameObject.AddComponent<Rigidbody2D>();
+			}
+
+			utilityBone.GetComponent<Rigidbody2D>().isKinematic = true;
+
+			foreach (var utilBone in utilBoneArr) {
+				if (utilBone == utilityBone)
+					continue;
+
+				utilBone.mode = SkeletonUtilityBone.Mode.Override;
+
+				var joint = utilBone.gameObject.AddComponent<HingeJoint2D>();
+				joint.connectedBody = utilBone.transform.parent.GetComponent<Rigidbody2D>();
+				joint.useLimits = true;
+				joint.limits = new JointAngleLimits2D {
+					min = -20,
+					max = 20
+				};
+				utilBone.GetComponent<Rigidbody2D>().mass = utilBone.transform.parent.GetComponent<Rigidbody2D>().mass * 0.75f;
+			}
+		}
+#else
 		bool CanCreateHingeChain () {
 			if (utilityBone == null)
 				return false;
@@ -285,7 +335,7 @@ namespace Spine.Unity.Editor {
 			if (utilityBone.bone != null && utilityBone.bone.Children.Count == 0)
 				return false;
 
-			Rigidbody[] rigidbodies = utilityBone.GetComponentsInChildren<Rigidbody>();
+			var rigidbodies = utilityBone.GetComponentsInChildren<Rigidbody>();
 
 			return rigidbodies.Length <= 0;
 		}
@@ -332,6 +382,7 @@ namespace Spine.Unity.Editor {
 
 			utilBone.gameObject.AddComponent<Rigidbody>();
 		}
+#endif
 	}
 
 }

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

@@ -267,27 +267,27 @@ namespace Spine.Unity {
 			for (int i = 0, n = utilityBones.Count; i < n; i++)
 				utilityBones[i].transformLerpComplete = false;
 
-			UpdateAllBones();
+			UpdateAllBones(SkeletonUtilityBone.UpdatePhase.Local);
 		}
 
 		void UpdateWorld (ISkeletonAnimation anim) {
-			UpdateAllBones();
+			UpdateAllBones(SkeletonUtilityBone.UpdatePhase.World);
 			for (int i = 0, n = utilityConstraints.Count; i < n; i++)
 				utilityConstraints[i].DoUpdate();
 		}
 
 		void UpdateComplete (ISkeletonAnimation anim) {
-			UpdateAllBones();
+			UpdateAllBones(SkeletonUtilityBone.UpdatePhase.Complete);
 		}
 
-		void UpdateAllBones () {
+		void UpdateAllBones (SkeletonUtilityBone.UpdatePhase phase) {
 			if (boneRoot == null)
 				CollectBones();
 
 			var utilityBones = this.utilityBones;
 			if (utilityBones == null) return;
 			for (int i = 0, n = utilityBones.Count; i < n; i++)
-				utilityBones[i].DoUpdate();
+				utilityBones[i].DoUpdate(phase);
 		}
 
 		public Transform GetBoneRoot () {

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

@@ -43,6 +43,12 @@ namespace Spine.Unity {
 			Override
 		}
 
+		public enum UpdatePhase {
+			Local,
+			World,
+			Complete
+		}
+
 		#region Inspector
 		/// <summary>If a bone isn't set, boneName is used to find the bone.</summary>
 		public string boneName;
@@ -71,7 +77,7 @@ namespace Spine.Unity {
 			skeletonTransform = skeletonUtility.transform;
 			skeletonUtility.OnReset -= HandleOnReset;
 			skeletonUtility.OnReset += HandleOnReset;
-			DoUpdate();
+			DoUpdate(UpdatePhase.Local);
 		}
 
 		void OnEnable () {
@@ -95,7 +101,7 @@ namespace Spine.Unity {
 			}
 		}
 
-		public void DoUpdate () {
+		public void DoUpdate (UpdatePhase phase) {
 			if (!valid) {
 				Reset();
 				return;
@@ -112,46 +118,72 @@ namespace Spine.Unity {
 				}
 			}
 
+			var thisTransform = cachedTransform;
 			float skeletonFlipRotation = (skeleton.flipX ^ skeleton.flipY) ? -1f : 1f;
 			if (mode == Mode.Follow) {
-				if (!bone.appliedValid)
-					bone.UpdateAppliedTransform();			
-
-				if (position)
-					cachedTransform.localPosition = new Vector3(bone.ax, bone.ay, 0);
-				
-				if (rotation) {
-					if (bone.data.transformMode.InheritsRotation()) {
-						cachedTransform.localRotation = Quaternion.Euler(0, 0, bone.AppliedRotation);
-					} else {
-						Vector3 euler = skeletonTransform.rotation.eulerAngles;
-						cachedTransform.rotation = Quaternion.Euler(euler.x, euler.y, euler.z + (bone.WorldRotationX * skeletonFlipRotation));
-					}
-				}
-
-				if (scale) {
-					cachedTransform.localScale = new Vector3(bone.ascaleX, bone.ascaleY, 1f);
-					incompatibleTransformMode = BoneTransformModeIncompatible(bone);
+				switch (phase) {
+					case UpdatePhase.Local:
+						if (position)
+							thisTransform.localPosition = new Vector3(bone.x, bone.y, 0);
+
+						if (rotation) {
+							if (bone.data.transformMode.InheritsRotation()) {
+								thisTransform.localRotation = Quaternion.Euler(0, 0, bone.rotation);
+							} else {
+								Vector3 euler = skeletonTransform.rotation.eulerAngles;
+								thisTransform.rotation = Quaternion.Euler(euler.x, euler.y, euler.z + (bone.WorldRotationX * skeletonFlipRotation));
+							}
+						}
+
+						if (scale) {
+							thisTransform.localScale = new Vector3(bone.scaleX, bone.scaleY, 1f);
+							incompatibleTransformMode = BoneTransformModeIncompatible(bone);
+						}
+						break;
+					case UpdatePhase.World:
+					case UpdatePhase.Complete:
+						// Use Applied transform values (ax, ay, AppliedRotation, ascale) if world values were modified by constraints.
+						if (!bone.appliedValid) {
+							bone.UpdateAppliedTransform();
+							if (position)
+								thisTransform.localPosition = new Vector3(bone.ax, bone.ay, 0);
+
+							if (rotation) {
+								if (bone.data.transformMode.InheritsRotation()) {
+									thisTransform.localRotation = Quaternion.Euler(0, 0, bone.AppliedRotation);
+								} else {
+									Vector3 euler = skeletonTransform.rotation.eulerAngles;
+									thisTransform.rotation = Quaternion.Euler(euler.x, euler.y, euler.z + (bone.WorldRotationX * skeletonFlipRotation));
+								}
+							}
+
+							if (scale) {
+								thisTransform.localScale = new Vector3(bone.ascaleX, bone.ascaleY, 1f);
+								incompatibleTransformMode = BoneTransformModeIncompatible(bone);
+							}
+						}
+						break;
 				}
+				
 			} else if (mode == Mode.Override) {
 				if (transformLerpComplete)
 					return;
 
 				if (parentReference == null) {
 					if (position) {
-						Vector3 clp = cachedTransform.localPosition;
+						Vector3 clp = thisTransform.localPosition;
 						bone.x = Mathf.Lerp(bone.x, clp.x, overrideAlpha);
 						bone.y = Mathf.Lerp(bone.y, clp.y, overrideAlpha);
 					}
 
 					if (rotation) {
-						float angle = Mathf.LerpAngle(bone.Rotation, cachedTransform.localRotation.eulerAngles.z, overrideAlpha);
+						float angle = Mathf.LerpAngle(bone.Rotation, thisTransform.localRotation.eulerAngles.z, overrideAlpha);
 						bone.Rotation = angle;
 						bone.AppliedRotation = angle;
 					}
 
 					if (scale) {
-						Vector3 cls = cachedTransform.localScale;
+						Vector3 cls = thisTransform.localScale;
 						bone.scaleX = Mathf.Lerp(bone.scaleX, cls.x, overrideAlpha);
 						bone.scaleY = Mathf.Lerp(bone.scaleY, cls.y, overrideAlpha);
 					}
@@ -161,19 +193,19 @@ namespace Spine.Unity {
 						return;
 
 					if (position) {
-						Vector3 pos = parentReference.InverseTransformPoint(cachedTransform.position);
+						Vector3 pos = parentReference.InverseTransformPoint(thisTransform.position);
 						bone.x = Mathf.Lerp(bone.x, pos.x, overrideAlpha);
 						bone.y = Mathf.Lerp(bone.y, pos.y, overrideAlpha);
 					}
 
 					if (rotation) {
-						float angle = Mathf.LerpAngle(bone.Rotation, Quaternion.LookRotation(Vector3.forward, parentReference.InverseTransformDirection(cachedTransform.up)).eulerAngles.z, overrideAlpha);
+						float angle = Mathf.LerpAngle(bone.Rotation, Quaternion.LookRotation(Vector3.forward, parentReference.InverseTransformDirection(thisTransform.up)).eulerAngles.z, overrideAlpha);
 						bone.Rotation = angle;
 						bone.AppliedRotation = angle;
 					}
 
 					if (scale) {
-						Vector3 cls = cachedTransform.localScale;
+						Vector3 cls = thisTransform.localScale;
 						bone.scaleX = Mathf.Lerp(bone.scaleX, cls.x, overrideAlpha);
 						bone.scaleY = Mathf.Lerp(bone.scaleY, cls.y, overrideAlpha);
 					}