code: function setBounds(x, y, w, h) {
           this.smoothFollow = false;
           this.bounds.pos.set(x, y);
           this.bounds.resize(w, h);
           this.moveTo(this.pos.x, this.pos.y);
           this.update();
           this.smoothFollow = true;
         }
docs: set the camera boundaries (set to the world limit by default).
  the camera is bound to the given coordinates and cannot move/be scrolled outside of it.
  @name setBounds
  @memberOf me.Camera2d
  @function
  @param {Number} x world left limit
  @param {Number} y world top limit
  @param {Number} w world width limit
  @param {Number} h world height limit