the-world-engine/dist/esm/engine/physics/2d/RayCastOneCallback.js

three.js based, unity like game engine for browser

import { RayCastCallback, Vec2 } from "../../../box2d.ts/build/index";

export class RayCastOneCallback extends RayCastCallback {
    ta;
    ea=false;
    sa=null;
    $i=new Vec2;
    aa=0;
    ia=0;
    ra=0;
    static _tempVec2=new Vec2;
    constructor(t) {
        super();
        this.ta = t;
    }
    setRaycastData(t, e, s, a, i) {
        this.ea = false;
        this.sa = t;
        this.$i.Copy(e);
        this.aa = s;
        this.ia = a;
        this.ra = i;
    }
    get hit() {
        return this.ea;
    }
    ReportFixture(t, e, s, a) {
        const i = t.GetUserData();
        if (!this.ta.queriesHitTriggers && i.isTrigger) return -1;
        const r = RayCastOneCallback._tempVec2.Copy(e).SelfSub(this.$i).Length();
        if ((i.getThisOrRigidBodyLayer() & this.aa) === 0) return -1;
        const _ = i.transform;
        const c = _.position.z;
        if (c < this.ia || this.ra < c) return -1;
        this.sa.setData(e, i, r, a, s, e, t.GetBody().GetUserData().rigidbody, _);
        this.ea = true;
        return a;
    }
    ReportParticle() {
        return -1;
    }
    ShouldQueryParticleSystem() {
        return false;
    }
}