code: function setDeadzone(w, h) {
           if (typeof this.deadzone === "undefined") {
             this.deadzone = new me.Rect(0, 0, 0, 0);
           } // reusing the old code for now...
  
  
           this.deadzone.pos.set(~~((this.width - w) / 2), ~~((this.height - h) / 2 - h * 0.25));
           this.deadzone.resize(w, h);
           this.smoothFollow = false; // force a camera update
  
           this.updateTarget();
           this.smoothFollow = true;
         }
docs: change the deadzone settings.
  the "deadzone" defines an area within the current camera in which
  the followed renderable can move without scrolling the camera.
  @name setDeadzone
  @see me.Camera2d.follow
  @memberOf me.Camera2d
  @function
  @param {Number} w deadzone width
  @param {Number} h deadzone height