the-world-engine/dist/esm/engine/script/physics2d/PhysicsDebugRender.js

three.js based, unity like game engine for browser

const debugObjectName = "physics_debug_object";

export function getOrCreatePhysicsDebugRenderObject(e) {
    let t = null;
    e.scene.iterateChild((e => {
        if (e.gameObject.name === debugObjectName && e.gameObject.exists) {
            t = e.gameObject;
            return false;
        }
        return true;
    }));
    if (!t) {
        t = e.scene.addChildFromBuilder(e.instantiater.buildGameObject(debugObjectName));
    }
    return t;
}