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[unity] BoneFollower. Negate rotation from negative scaleX.

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John 2018-01-08 21:16:20 +08:00 committed by GitHub
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commit 92cacd7e6d
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1 changed files with 10 additions and 1 deletions
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spine-unity/Assets/spine-unity/BoneFollower.cs
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@ -137,7 +137,16 @@ namespace Spine.Unity {
if (skeletonTransformIsParent) {
// 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) thisTransform.localRotation = bone.GetQuaternion();
if (followBoneRotation) {
var 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;
var q = default(Quaternion);
q.z = Mathf.Sin(halfRotation);
q.w = Mathf.Cos(halfRotation);
thisTransform.localRotation = q;
}
} else {
// For special cases: Use transform world properties if transform relationship is complicated
Vector3 targetWorldPosition = skeletonTransform.TransformPoint(new Vector3(bone.worldX, bone.worldY, 0f));