fix crash from partIdx -1 (#24)

ACEmulator · May 25, 2021 · 9559027 · 9559027
1 parent cc7bbfc
commit 9559027
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/ACViewer/Physics/PhysicsObj.cs b/ACViewer/Physics/PhysicsObj.cs
@@ -1440,7 +1440,7 @@ public void TurnToObject_Internal(uint objectID, uint topLevelID, MovementParame
 
         public void UpdateChild(PhysicsObj childObj, int partIdx, AFrame childFrame)
         {
-            var frame = partIdx >= PartArray.NumParts ?
+            var frame = partIdx == -1 || partIdx >= PartArray.NumParts ?
                 AFrame.Combine(Position.Frame, childFrame) : AFrame.Combine(PartArray.Parts[partIdx].Pos.Frame, childFrame);
 
             childObj.set_frame(frame);