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math/line: use center point for behind-wall check

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Fixes collision in case of rounding errors.
This commit is contained in:
Matthias Schiffer 2018-11-05 22:19:07 +01:00
parent fd59aaa55c
commit 3469b37b1b
Signed by: neocturne
GPG key ID: 16EF3F64CB201D9C
1 changed files with 3 additions and 3 deletions
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6
src/math/line.ts
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@ -108,6 +108,9 @@ export class LineSegment extends Line implements Collidable {
}
public collide(out: vec2, move: Movement, r: number): boolean {
if (this.distancePoint(move.p1) < 0)
return false;
const t = this.getNormal(vec2.create());
vec2.scale(t, t, -r);
@ -121,9 +124,6 @@ export class LineSegment extends Line implements Collidable {
}
private collideRef(out: vec2, move: Movement): boolean {
if (this.distancePoint(move.p1) < 0)
return false;
if (this.distancePoint(move.p2) >= 0)
return false;