src/examples/sync-3d-to-2d.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>Sync 3D to 2D</title>
    <link rel="stylesheet" href="/css/examples.css?ver=1.0.0" />
    <script src="/js/examples.js?ver=1.1.1"></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">Use your Mouse to Zoom and Move<br />(Syncs the 2D Square to the 3D Box)</div>
    <script>
      const { enable3d, Scene3D, Canvas } = ENABLE3D

      class MainScene extends Scene3D {
        init() {
          this.accessThirdDimension()
        }

        create() {
          this.third.warpSpeed()

          this.box = this.third.physics.add.box({ y: 5, x: 2 })
          this.rect = this.add.rectangle(0, 0, 50, 50, 0xff00ff)

          let distance = this.third.camera.position.distanceTo(this.box.position)
          this.rect.setData('initialDistance', distance)
        }

        update() {
          // adjust the size of the rect
          let distance = this.third.camera.position.distanceTo(this.box.position)
          let size = this.rect.getData('initialDistance') / distance
          this.rect.setScale(size)

          // adjust position of the rect
          let pos = this.third.transform.from3dto2d(this.box.position)
          this.rect.setPosition(pos.x, pos.y)
        }
      }

      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()
      }

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