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author | Matthias Schiffer <mschiffer@universe-factory.net> | 2018-12-08 12:39:18 +0100 |
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committer | Matthias Schiffer <mschiffer@universe-factory.net> | 2018-12-08 12:39:18 +0100 |
commit | b3950330e3351437f153c6c1debb3821d6e28864 (patch) | |
tree | 0b381b523045bd59cd679825a11976a45813fc24 /src/renderer/controller/collision.ts | |
parent | 439dcf391784ea3abb61473c74b9c27fcd9fdc2d (diff) | |
download | rpgedit-b3950330e3351437f153c6c1debb3821d6e28864.tar rpgedit-b3950330e3351437f153c6c1debb3821d6e28864.zip |
Create Electron app
Diffstat (limited to 'src/renderer/controller/collision.ts')
-rw-r--r-- | src/renderer/controller/collision.ts | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/renderer/controller/collision.ts b/src/renderer/controller/collision.ts new file mode 100644 index 0000000..a44ffa4 --- /dev/null +++ b/src/renderer/controller/collision.ts @@ -0,0 +1,65 @@ +import { Collision } from '../model/data/collision'; + +import { Circle } from '../math/circle'; +import { Collidable } from '../math/collision'; +import { LineSegment, Movement } from '../math/line'; +import { Point } from '../math/point'; + +import { vec2 } from 'gl-matrix'; + +export function mkCollision(collision: Collision[]): Collidable[] { + const ret: Collidable[] = []; + + for (const c of collision) { + switch (c.type) { + case 'polygon': + if (!c.vertices.length) + continue; + + let prev = c.vertices[c.vertices.length - 1]; + + for (const v of c.vertices) { + ret.push(LineSegment.fromPoints(vec2.clone(prev), vec2.clone(v))); + prev = v; + } + + for (const v of c.vertices) { + ret.push(new Point(vec2.clone(v))); + prev = v; + } + break; + + case 'circle': + ret.push(new Circle(vec2.clone(c.center), c.radius)); + break; + } + } + + return ret; +} + +export interface CollidableGroup { + getTranslation(): vec2|null; + getCollidables(): Collidable[]; +} + +export function collide(collision: CollidableGroup, out: vec2, move: Movement, radius: number): boolean { + const t = collision.getTranslation(); + if (t) + move = move.translate(vec2.negate(vec2.create(), t)); + + for (const c of collision.getCollidables()) { + if (!c.collide(out, move, radius)) + continue; + + if (vec2.squaredDistance(move.src, out) >= vec2.squaredDistance(move.src, move.dest)) + continue; + + if (t) + vec2.add(out, out, t); + + return true; + } + + return false; +} |