@needle-tools/engine/src/engine/xr/internal.ts

Needle Engine is a web-based runtime for 3D apps. It runs on your machine for development with great integrations into editors like Unity or Blender - and can be deployed onto any device! It is flexible, extensible and networking and XR are built-in.

import { Matrix4, Object3D, Quaternion, Scene, Vector3 } from 'three';

import { CreateWireCube, Gizmos } from '../engine_gizmos.js';
import type { IGameObject } from '../engine_types.js';
import { getParam } from '../engine_utils.js';
import type { IXRRig } from './XRRig.js';

export const flipForwardMatrix = new Matrix4().makeRotationY(Math.PI);
export const flipForwardQuaternion = new Quaternion().setFromAxisAngle(new Vector3(0, 1, 0), Math.PI);

const debug = getParam("debugwebxr");

export class ImplictXRRig implements IXRRig {

    priority = -100000;
    gameObject: IGameObject;

    isXRRig(): boolean {
        return true;
    }

    get isActive(): boolean {
        return this.gameObject.visible;
    }

    constructor() {
        this.gameObject = new Object3D() as IGameObject;
        this.gameObject.name = "Implicit XR Rig";
        if (debug) {
            const cube = CreateWireCube(0xff55dd);
            cube.position.y += .5;
            this.gameObject.add(cube);
        }
    }
}