Heaps.io Interactive onDrag

Box.hx

package entities;

import h2d.Scene;
import h2d.Graphics;
import h2d.Interactive;
import hxd.Event;

class Box extends Graphics{

  var int:Interactive;
  var last:{x:Float, y:Float} = { x:0, y:0 };
  var offset:{x:Float,y:Float};

  public function new(scene:Scene, name:String, color:Int, x:Int, y:Int, w:Int, h:Int) {
    super(scene);

    this.x = x;
    this.y = y;
    beginFill(color);
    drawRect(0, 0, w, h);
    endFill();

    int = new Interactive(w, h, this);
    int.onPush = click;
    int.onRelease = release;
  }

  function click(e:Event) {
    bring_to_front();
    int.startDrag(drag);
    offset = {x:e.relX, y:e.relY};
    last.x = x;
    last.y = y;
  }

	function release(e:Event) {
		int.stopDrag();
	}

	function drag(e:Event)
	{
		x += e.relX - offset.x;
		y += e.relY - offset.y;
	}

	function bring_to_front()
	{
		parent.children.push(parent.children.splice(parent.children.indexOf(this), 1)[0]);
	}

}