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[libgdx] Added worldToParent and parentToWorld so application code doesn't need to check the parent for null (when it is the root).

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This commit is contained in:
Nathan Sweet 2023-07-02 18:30:01 -04:00
parent 55e8cf5e78
commit d65311dba0
1 changed files with 12 additions and 0 deletions
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12
spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Bone.java
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@ -590,6 +590,18 @@ public class Bone implements Updatable {
return local;
}
/** Transforms a point from world coordinates to the parent bone's local coordinates. */
public Vector2 worldToParent (Vector2 world) {
if (world == null) throw new IllegalArgumentException("world cannot be null.");
return parent == null ? world : parent.worldToLocal(world);
}
/** Transforms a point from the parent bone's coordinates to world coordinates. */
public Vector2 parentToWorld (Vector2 world) {
if (world == null) throw new IllegalArgumentException("world cannot be null.");
return parent == null ? world : parent.localToWorld(world);
}
/** Transforms a world rotation to a local rotation. */
public float worldToLocalRotation (float worldRotation) {
worldRotation *= degRad;