foster/liabru-matter-js
0
0
Fork 0
mirror of https://github.com/liabru/matter-js.git synced 2025-01-12 16:08:50 -05:00
Code Issues Wiki Activity

optimised Collision.collides

Browse source
This commit is contained in:
liabru 2023-11-14 21:01:43 +00:00
parent 51f49ce9d3
commit 6f8a54b253
1 changed files with 18 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

31
src/collision/Collision.js
View file

@ -100,27 +100,32 @@ var Pair = require('./Pair');
}
var normal = collision.normal,
tangent = collision.tangent,
penetration = collision.penetration,
supports = collision.supports,
depth = minOverlap.overlap,
minAxis = minOverlap.axis,
minAxisX = minAxis.x,
minAxisY = minAxis.y;
normalX = minAxis.x,
normalY = minAxis.y,
deltaX = bodyB.position.x - bodyA.position.x,
deltaY = bodyB.position.y - bodyA.position.y;
// ensure normal is facing away from bodyA
if (minAxisX * (bodyB.position.x - bodyA.position.x) + minAxisY * (bodyB.position.y - bodyA.position.y) < 0) {
normal.x = minAxisX;
normal.y = minAxisY;
} else {
normal.x = -minAxisX;
normal.y = -minAxisY;
if (normalX * deltaX + normalY * deltaY >= 0) {
normalX = -normalX;
normalY = -normalY;
}
normal.x = normalX;
normal.y = normalY;
collision.tangent.x = -normal.y;
collision.tangent.y = normal.x;
tangent.x = -normalY;
tangent.y = normalX;
collision.depth = minOverlap.overlap;
penetration.x = normalX * depth;
penetration.y = normalY * depth;
collision.penetration.x = normal.x * collision.depth;
collision.penetration.y = normal.y * collision.depth;
collision.depth = depth;
// find support points, there is always either exactly one or two
var supportsB = Collision._findSupports(bodyA, bodyB, normal, 1),