问拖放函数actionscript 3

EN

    import flash.display.MovieClip;
    import flash.events.MouseEvent;

var myWhiteCubes = new MovieClip();
white.addEventListener (MouseEvent.MOUSE_DOWN, whitePressed);
function whitePressed (event:MouseEvent):void
{
myWhiteCubes = new White(); 
myWhiteCubes.x = event.stageX;
myWhiteCubes.y = event.stageY;
addChild(myWhiteCubes);
myWhiteCubes.startDrag();
myWhiteCubes.addEventListener(MouseEvent.MOUSE_DOWN, cloneWhitePressed);
}

function cloneWhitePressed (event:MouseEvent):void
{
myWhiteCubes = MovieClip(event.currentTarget);
addChild(myWhiteCubes);
myWhiteCubes.startDrag();
var topPos:uint = this.numChildren - 1;
this.setChildIndex(myWhiteCubes,topPos);
myWhiteCubes.buttonMode = true;
}

stage.addEventListener (MouseEvent.MOUSE_UP, cloneWhiteReleased);
function cloneWhiteReleased (event:MouseEvent) : void
{
myWhiteCubes.stopDrag();

if (myWhiteCubes.hitTestPoint(myWhiteCubes.x+50,myWhiteCubes.y+10,true))
{   
var whiteCubes : MovieClip = new myWhiteCubes();
    whiteCubes.x = myWhiteCubes.x + 46;
    whiteCubes.y = myWhiteCubes.y;
}

if (myWhiteCubes.hitTestPoint(latestTaro.x+50,latestTaro.y+10,true))
{   
    myWhiteCubes.x = latestTaro.x + 46;
    myWhiteCubes.y = latestTaro.y;
}

if (myWhiteCubes.hitTestPoint(latestPurple.x+50,latestPurple.y+10,true))
{   
    myWhiteCubes.x = latestPurple.x + 46;
    myWhiteCubes.y = latestPurple.y;
}

if (myWhiteCubes.hitTestPoint(latestBlue.x+50,latestBlue.y+10,true))
{   
    myWhiteCubes.x = latestBlue.x + 46;
    myWhiteCubes.y = latestBlue.y;
}

if (myWhiteCubes.hitTestPoint(latestPurple.x+50,latestPurple.y+10,true))
{   
    myWhiteCubes.x = latestPurple.x + 46;
    myWhiteCubes.y = latestPurple.y;
}

if (myWhiteCubes.hitTestPoint(latestBlue.x+50,latestBlue.y+10,true))
{   
    myWhiteCubes.x = latestBlue.x + 46;
    myWhiteCubes.y = latestBlue.y;
}

if (myWhiteCubes.hitTestPoint(latestTurquois.x+50,latestTurquois.y+10,true))
{   
    myWhiteCubes.x = latestTurquois.x + 46;
    myWhiteCubes.y = latestTurquois.y;
}

if (myWhiteCubes.hitTestPoint(latestLime.x+50,latestLime.y+10,true))
{   
    myWhiteCubes.x = latestLime.x + 46;
    myWhiteCubes.y = latestLime.y;
}

if (myWhiteCubes.hitTestPoint(latestYellow.x+50,latestYellow.y+10,true))
{   
    myWhiteCubes.x = latestYellow.x + 46;
    myWhiteCubes.y = latestYellow.y;
}

if (myWhiteCubes.hitTestPoint(latestOrange.x+50,latestOrange.y+10,true))
{   
    myWhiteCubes.x = latestOrange.x + 46;
    myWhiteCubes.y = latestOrange.y;
}

if (myWhiteCubes.hitTestPoint(latestRed.x+50,latestRed.y+10,true))
{   
    myWhiteCubes.x = latestRed.x + 46;
    myWhiteCubes.y = latestRed.y;
}



}

white.buttonMode = true;