code: function (x, y) {
              var _x = this.pos.x;
              var _y = this.pos.y;
  
              this.pos.x = me.Math.clamp(
                  x,
                  this.bounds.pos.x,
                  this.bounds.width - this.width
              );
              this.pos.y = me.Math.clamp(
                  y,
                  this.bounds.pos.y,
                  this.bounds.height - this.height
              );
  
              //publish the VIEWPORT_ONCHANGE event if necessary
              if (_x !== this.pos.x || _y !== this.pos.y) {
                  me.event.publish(me.event.VIEWPORT_ONCHANGE, [this.pos]);
              }
          }
docs: move the camera upper-left position to the specified coordinates
  @name moveTo
  @memberOf me.Camera2d
  @see me.Camera2d.focusOn
  @function
  @param {Number} x
  @param {Number} y