the-world-engine/dist/esm/box2d.ts/build/dynamics/b2_world_callbacks.js

three.js based, unity like game engine for browser

import { b2_maxManifoldPoints, b2MakeNumberArray } from "../common/b2_settings.js";

import { b2BodyType } from "./b2_body.js";

export class b2DestructionListener {
    SayGoodbyeJoint(t) {}
    SayGoodbyeFixture(t) {}
    SayGoodbyeParticleGroup(t) {}
    SayGoodbyeParticle(t, e) {}
}

export class b2ContactFilter {
    ShouldCollide(t, e) {
        const r = t.GetBody();
        const o = e.GetBody();
        if (o.GetType() === b2BodyType.b2_staticBody && r.GetType() === b2BodyType.b2_staticBody) {
            return false;
        }
        if (!o.ShouldCollideConnected(r)) {
            return false;
        }
        const a = t.GetFilterData();
        const n = e.GetFilterData();
        if (a.groupIndex === n.groupIndex && a.groupIndex !== 0) {
            return a.groupIndex > 0;
        }
        const i = (a.maskBits & n.categoryBits) !== 0 && (a.categoryBits & n.maskBits) !== 0;
        return i;
    }
    ShouldCollideFixtureParticle(t, e, r) {
        return true;
    }
    ShouldCollideParticleParticle(t, e, r) {
        return true;
    }
}

b2ContactFilter.b2_defaultFilter = new b2ContactFilter;

export class b2ContactImpulse {
    constructor() {
        this.normalImpulses = b2MakeNumberArray(b2_maxManifoldPoints);
        this.tangentImpulses = b2MakeNumberArray(b2_maxManifoldPoints);
        this.count = 0;
    }
}

export class b2ContactListener {
    BeginContact(t) {}
    EndContact(t) {}
    BeginContactFixtureParticle(t, e) {}
    EndContactFixtureParticle(t, e) {}
    BeginContactParticleParticle(t, e) {}
    EndContactParticleParticle(t, e) {}
    PreSolve(t, e) {}
    PostSolve(t, e) {}
}

b2ContactListener.b2_defaultListener = new b2ContactListener;

export class b2QueryCallback {
    ReportFixture(t) {
        return true;
    }
    ReportParticle(t, e) {
        return false;
    }
    ShouldQueryParticleSystem(t) {
        return true;
    }
}

export class b2RayCastCallback {
    ReportFixture(t, e, r, o) {
        return o;
    }
    ReportParticle(t, e, r, o, a) {
        return 0;
    }
    ShouldQueryParticleSystem(t) {
        return true;
    }
}