UnityMirror/spine-runtimes
1
0
Fork 0
mirror of https://github.com/EsotericSoftware/spine-runtimes.git synced 2026-02-06 07:14:55 +08:00
Code Issues Packages Projects Releases Wiki Activity

Adjusted fix for IK constraint NaN when parent has zero scale.

Browse Source
This commit is contained in:
Nathan Sweet 2023-04-05 17:58:42 -04:00
parent 0fac0504ac
commit e04e7b58f3
1 changed files with 10 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/IkConstraint.java
View File

@ -195,9 +195,14 @@ public class IkConstraint implements Updatable {
// Fall through.
default:
float x = targetX - p.worldX, y = targetY - p.worldY;
float d = Math.max(0.0001f, pa * pd - pb * pc);
tx = (x * pd - y * pb) / d - bone.ax;
ty = (y * pa - x * pc) / d - bone.ay;
float d = pa * pd - pb * pc;
if (Math.abs(d) <= 0.0001f) {
tx = 0;
ty = 0;
} else {
tx = (x * pd - y * pb) / d - bone.ax;
ty = (y * pa - x * pc) / d - bone.ay;
}
}
rotationIK += atan2(ty, tx) * radDeg;
if (bone.ascaleX < 0) rotationIK += 180;
@ -264,7 +269,8 @@ public class IkConstraint implements Updatable {
b = pp.b;
c = pp.c;
d = pp.d;
float id = 1 / Math.max(0.0001f, a * d - b * c), x = cwx - pp.worldX, y = cwy - pp.worldY;
float id = a * d - b * c, x = cwx - pp.worldX, y = cwy - pp.worldY;
id = Math.abs(id) <= 0.0001f ? 0 : 1 / id;
float dx = (x * d - y * b) * id - px, dy = (y * a - x * c) * id - py;
float l1 = (float)Math.sqrt(dx * dx + dy * dy), l2 = child.data.length * csx, a1, a2;
if (l1 < 0.0001f) {