public void LateUpdate () {
#if UNITY_EDITOR
if (!Application.isPlaying) skeletonTransformIsParent = Transform.ReferenceEquals(skeletonTransform, transform.parent);
#endif
if (point == null) {
if (string.IsNullOrEmpty(pointAttachmentName)) return;
UpdateReferences();
if (point == null) return;
}
Vector2 worldPos;
point.ComputeWorldPosition(bone, out worldPos.x, out worldPos.y);
float rotation = point.ComputeWorldRotation(bone);
Transform thisTransform = this.transform;
if (skeletonTransformIsParent) {
// Recommended setup: Use local transform properties if Spine GameObject is the immediate parent
thisTransform.localPosition = new Vector3(worldPos.x, worldPos.y, followSkeletonZPosition ? 0f : thisTransform.localPosition.z);
if (followRotation) {
float halfRotation = rotation * 0.5f * Mathf.Deg2Rad;
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(worldPos.x, worldPos.y, 0f));
if (!followSkeletonZPosition)
targetWorldPosition.z = thisTransform.position.z;
Transform transformParent = thisTransform.parent;
if (transformParent != null) {
Matrix4x4 m = transformParent.localToWorldMatrix;
if (m.m00 * m.m11 - m.m01 * m.m10 < 0) // Determinant2D is negative
rotation = -rotation;
}
if (followRotation) {
Vector3 transformWorldRotation = skeletonTransform.rotation.eulerAngles;
thisTransform.SetPositionAndRotation(targetWorldPosition, Quaternion.Euler(transformWorldRotation.x, transformWorldRotation.y, transformWorldRotation.z + rotation));
} else {
thisTransform.position = targetWorldPosition;
}
}
if (followSkeletonFlip) {
Vector3 localScale = thisTransform.localScale;
localScale.y = Mathf.Abs(localScale.y) * Mathf.Sign(bone.skeleton.scaleX * bone.skeleton.scaleY);
thisTransform.localScale = localScale;
}
}
public static void DrawPointAttachment(Bone bone, PointAttachment pointAttachment, Transform skeletonTransform)
{
if (bone == null)
{
return;
}
if (pointAttachment == null)
{
return;
}
Vector2 localPos;
pointAttachment.ComputeWorldPosition(bone, out localPos.x, out localPos.y);
float localRotation = pointAttachment.ComputeWorldRotation(bone);
Matrix4x4 m = Matrix4x4.TRS(localPos, Quaternion.Euler(0, 0, localRotation), Vector3.one) * Matrix4x4.TRS(Vector3.right * 0.25f, Quaternion.identity, Vector3.one);
DrawBoneCircle(skeletonTransform.TransformPoint(localPos), SpineHandles.PointColor, Vector3.back, 1.3f);
DrawArrowhead(skeletonTransform.localToWorldMatrix * m);
}