custom aframe controls

custom-controls.md

HTML:

<a-entity camera
          universal-controls="movementControls: custom, gamepad, keyboard">
</a-entity>

JS:

AFRAME.registerComponent('custom-controls', {
  init: function () {
    this.isMoving = false;
    this.velocityDelta = new THREE.Vector3();
  },
  isVelocityActive: function () {
    return this.isMoving;
  },
  getVelocityDelta: function () {
    this.velocityDelta.z = this.isMoving ? -1 : 0;
    return this.velocityDelta.clone();
  }
});