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Fixed 1-bone IK for transform mode noRotationOrReflection when skeleton scale is applied.

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This commit is contained in:
Nathan Sweet 2020-06-03 15:47:46 +02:00
parent bcfff2d3c8
commit 5cab7e9460
1 changed files with 6 additions and 4 deletions
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10
spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/IkConstraint.java
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@ -185,10 +185,12 @@ public class IkConstraint implements Updatable {
ty = targetY - bone.worldY;
break;
case noRotationOrReflection:
rotationIK += atan2(pc, pa) * radDeg;
float ps = Math.abs(pa * pd - pb * pc) / (pa * pa + pc * pc);
pb = -pc * ps;
pd = pa * ps;
float s = Math.abs(pa * pd - pb * pc) / (pa * pa + pc * pc);
float sa = pa / bone.skeleton.scaleX;
float sc = pc / bone.skeleton.scaleY;
pb = -sc * s * bone.skeleton.scaleX;
pd = sa * s * bone.skeleton.scaleY;
rotationIK += atan2(sc, sa) * radDeg;
// Fall through.
default:
float x = targetX - p.worldX, y = targetY - p.worldY;