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[unity] Minor extensions update.

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pharan 2016-12-26 11:32:19 +08:00
parent 68fb6e78ae
commit 73f8779efc
1 changed files with 10 additions and 0 deletions
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10
spine-unity/Assets/spine-unity/SkeletonExtensions.cs
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@ -114,10 +114,12 @@ namespace Spine.Unity {
return new Vector2(bone.x, bone.y);
}
/// <summary>Gets the position of the bone in Skeleton-space.</summary>
public static Vector2 GetSkeletonSpacePosition (this Bone bone) {
return new Vector2(bone.worldX, bone.worldY);
}
/// <summary>Gets a local offset from the bone and converts it into Skeleton-space.</summary>
public static Vector2 GetSkeletonSpacePosition (this Bone bone, Vector2 boneLocal) {
Vector2 o;
bone.LocalToWorld(boneLocal.x, boneLocal.y, out o.x, out o.y);
@ -136,6 +138,7 @@ namespace Spine.Unity {
};
}
/// <summary>Outputs a 2x2 Transformation Matrix that can convert a skeleton-space position to a bone-local position.</summary>
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);
@ -144,6 +147,13 @@ namespace Spine.Unity {
ic = invDet * -c;
id = invDet * a;
}
/// <summary>UnityEngine.Vector2 override of Bone.WorldToLocal. This converts a skeleton-space position into a bone local position.</summary>
public static Vector2 WorldToLocal (this Bone bone, Vector2 worldPosition) {
Vector2 o;
bone.WorldToLocal(worldPosition.x, worldPosition.y, out o.x, out o.y);
return o;
}
#endregion
#region Attachments