src/examples/virtual-reality-phaser.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta
      name="viewport"
      content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no, viewport-fit=cover"
    />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Virtual Reality (with Phaser)</title>
    <link rel="stylesheet" href="/css/examples.css?ver=1.0.0" />
    <script src="/js/examples.js?ver=1.1.1"></script>
    <!-- https://github.com/immersive-web/webxr-polyfill -->
    <script src="https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js"></script>
    <script src="/lib/phaser.min.js?ver=3.52.0"></script>
    <script src="/lib/enable3d/enable3d.phaserExtension.0.25.4.min.js"></script>
  </head>

  <body>
    <div id="info-text">Get your Phone, click Enter VR, tab on the screen and look around.</div>
    <script>
      const { enable3d, Scene3D, Canvas, THREE } = ENABLE3D

      class MainScene extends Scene3D {
        move = false

        constructor() {
          super({ key: 'MainScene' })
        }

        init() {
          this.accessThirdDimension({ enableXR: true, antialias: false })
        }

        // The normal Phaser update method will not run while you are in WebXR mode.
        update() {}

        // Use updateXR as update loop in WebXR mode.
        updateXR() {
          if (this.third.webXR.isPresenting && this.move) {
            // move 0.02 units toward view
            const v3 = new THREE.Vector3()
            const distance = 0.02
            this.third.renderer.xr.getCamera().getWorldDirection(v3)
            const pos = v3.multiplyScalar(distance)

            // move xr camera
            const offsetPosition = new THREE.Quaternion(-pos.x, -pos.y, -pos.z, 1)
            const offsetRotation = new THREE.Quaternion()
            const transform = new XRRigidTransform(offsetPosition, offsetRotation)
            const teleportSpaceOffset = this.third.renderer.xr.getReferenceSpace()?.getOffsetReferenceSpace(transform)
            if (teleportSpaceOffset) this.third.renderer.xr.setReferenceSpace(teleportSpaceOffset)
          }
        }

        create() {
          this.third.warpSpeed('-orbitControls')

          // 2d element will not be visible in WebXR mode.
          // const rect = this.add.rectangle(50, 50, 10, 10, 0xff00ff)

          const controller = this.third.webXR.getController(0)

          // will be available in the next version
          const controllerGrip = this.third.webXR.getControllerGrip ? this.third.webXR.getControllerGrip(0) : null

          setInterval(() => {
            const x = Math.random() * 10 - 5
            const z = Math.random() * 10 - 5
            const ball = this.third.physics.add.sphere({ y: 50, x, z, radius: 0.5 }, { lambert: { color: 'red' } })
            ball.body.setBounciness(0.7)

            setTimeout(() => {
              this.third.destroy(ball)
            }, 20000)
          }, 2000)

          const onSelectStart = () => {
            this.move = true
          }

          const onSelectEnd = () => {
            this.move = false
          }

          controller.addEventListener('select', () => {})
          controller.addEventListener('selectstart', onSelectStart)
          controller.addEventListener('selectend', onSelectEnd)

          controller.addEventListener('squeeze', () => {})
          controller.addEventListener('squeezestart', onSelectStart)
          controller.addEventListener('squeezeend', onSelectEnd)

          controller.addEventListener('connected', event => {
            const ray = this.third.webXR.getControllerRay(event.data)
            if (ray) controller.add(ray)
          })
          controller.addEventListener('disconnected', () => {
            controller.remove(controller.children[0])
          })
        }
      }

      const config = {
        type: Phaser.WEBGL,
        transparent: true,
        scale: {
          mode: Phaser.Scale.FIT,
          autoCenter: Phaser.Scale.CENTER_BOTH,
          width: window.innerWidth * Math.max(1, window.devicePixelRatio / 2),
          height: window.innerHeight * Math.max(1, window.devicePixelRatio / 2)
        },
        scene: [MainScene],
        ...Canvas({ antialias: true })
      }

      window.addEventListener('load', () => {
        enable3d(() => new Phaser.Game(config)).withPhysics('/lib/ammo/kripken')
      })
    </script>
  </body>
</html>