function CubeEntity() {
  Entity.call(this);
  this.add(POSITION);
  this.position.x = 0;
  this.position.y = 0;
  this.position.z = 0;
  this.add(MESH);
  this.add(MATERIAL);
}

Object.assign(CubeEntity.prototype, Entity.prototype);

CubeEntity.prototype.update = function() {
  var speed = 3.0;
  var dx = inputAxis(INPUT_ACTION_LEFT, INPUT_ACTION_RIGHT);
  var dz = inputAxis(INPUT_ACTION_UP, INPUT_ACTION_DOWN);
  this.position.x += dx * speed * TIME.delta;
  this.position.z += dz * speed * TIME.delta;
  this.material.setColor(Color.rainbow());
};

module = CubeEntity;