TypeError: Error #2007 - Parameter hitTestObject must be non-null

0
votes

When I'm testing the movie this appears:

TypeError: Error #2007: El valor del parámetro hitTestObject debe ser distinto de null.

at flash.display::DisplayObject/_hitTest()
at flash.display::DisplayObject/hitTestObject()
at DragDrop/drop()

Here's the DragDrop Code:

package 
{
    import flash.display.*;
    import flash.events.*;


    public class DragDrop extends Sprite
    {
        var origX:Number;
        var origY:Number;
        var target:DisplayObject;

        public function DragDrop()
        {
            origX = x;
            origY = y;

            addEventListener(MouseEvent.MOUSE_DOWN, drag);
            buttonMode = true;

        }

        function drag(evt:MouseEvent):void
        {
            stage.addEventListener(MouseEvent.MOUSE_UP, drop);
            startDrag();
            parent.addChild(this);
        }

        function drop(evt:MouseEvent):void
        {
            stage.removeEventListener(MouseEvent.MOUSE_UP, drop);
            stopDrag();

            if(hitTestObject(target))
            {
                visible = false;
                target.alpha = 50;
                Object(parent).match();
            }

            x = origX;
            y = origY;

        }

    }

}

Please I need your help.

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1
actionscript-3drag-and-dropflash-cs6
Where do you assign target? You object does not know about its target until you give it that target. And no, it won't look up target in another class's variables. – Vesper

1 Answers

0
votes

The problem is that your target Object is never being set! You need to define target!