Merge pull request #107 from LeXXik/ms-optimize

Minor optimization to motion state math
Gamebop · Oct 29, 2024 · a9c1c94 · a9c1c94
2 parents 5f84799 + b116b18
commit a9c1c94
Showing 1 changed file with 3 additions and 17 deletions.
diff --git a/src/physics/jolt/back/motion-state.mjs b/src/physics/jolt/back/motion-state.mjs
@@ -1,7 +1,5 @@
 import { Debug } from '../debug.mjs';
 
-const v1 = { x: 0, y: 0, z: 0 };
-
 class MotionState {
     constructor(body) {
         this._body = body;
@@ -23,21 +21,9 @@ class MotionState {
                 cp.x = bp.GetX(); cp.y = bp.GetY(); cp.z = bp.GetZ();
             }
 
-            v1.x = cp.x * alpha;
-            v1.y = cp.y * alpha;
-            v1.z = cp.z * alpha;
-
-            position.x = v1.x;
-            position.y = v1.y;
-            position.z = v1.z;
-
-            v1.x = op.x * (1 - alpha);
-            v1.y = op.y * (1 - alpha);
-            v1.z = op.z * (1 - alpha);
-
-            position.x += v1.x;
-            position.y += v1.y;
-            position.z += v1.z;
+            position.x = cp.x * alpha + op.x * (1 - alpha);
+            position.y = cp.y * alpha + op.y * (1 - alpha);
+            position.z = cp.z * alpha + op.z * (1 - alpha);
 
             if (!body.isCharacter) {
                 const r = this._rotation;