optimised Collision._findSupports

liabru · Jul 23, 2023 · 653a110 · 653a110
1 parent ce03208
commit 653a110
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/src/collision/Collision.js b/src/collision/Collision.js
@@ -275,15 +275,15 @@ var Pair = require('./Pair');
  bodyAPositionY = bodyA.position.y,
  normalX = normal.x * direction,
  normalY = normal.y * direction,
- nearestDistance = Number.MAX_VALUE,
- vertexA,
- vertexB,
+ vertexA = vertices[0],
+ vertexB = vertexA,
+ nearestDistance = normalX * (bodyAPositionX - vertexB.x) + normalY * (bodyAPositionY - vertexB.y),
  vertexC,
  distance,
  j;
 
  // find deepest vertex relative to the axis
- for (j = 0; j < verticesLength; j += 1) {
+ for (j = 1; j < verticesLength; j += 1) {
  vertexB = vertices[j];
  distance = normalX * (bodyAPositionX - vertexB.x) + normalY * (bodyAPositionY - vertexB.y);