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我正在使用 AS3 创建拖放游戏。这是我用来进行拖放的代码。游戏将为用户提供提示，用户必须将三个选项中的特定答案拖到正确位置。此编码将允许用户选择所有三个选项。我想要做的是限制用户选择多个选项。有人可以帮我弄这个吗？

var myArray:Array = [apple, grapes, gava];
var matchImage:Array = [imgApple, imgGrapes, imgGuava];
var posArray:Array = [ {x:55.3, y:55.6}, {x:100.45, y:100.6}, {x:300.5, y:250.7} ];
var currentClip:MovieClip;
var Xpos:Number;
var Ypos:Number;

for(var i:int = 0; i < wordArray.length; i++) {
    myArray[i].buttonMode = true;
    myArray[i].addEventListener(MouseEvent.MOUSE_DOWN, item_onMouseDown);
}

function item_onMouseDown(event:MouseEvent):void {
    currentClip = MovieClip(event.currentTarget);
    Xpos = currentClip.x;
    Ypos = currentClip.y;
    addChild(currentClip); 
    currentClip.startDrag();
    stage.addEventListener(MouseEvent.MOUSE_UP, stage_onMouseUp);
}

function stage_onMouseUp(event:MouseEvent):void {
    stage.removeEventListener(MouseEvent.MOUSE_UP, stage_onMouseUp);
    currentClip.stopDrag();
    var index:int = myArray.indexOf(thisClip);
    var equalClip:MovieClip = MovieClip(matchImage[index]);
    if(matchImage.hitTestPoint(thisClip.x, thisClip.y, true)) {
        currentClip.x = posArray[index].x;
        currentClip.y = posArray[index].y;
        currentClip.removeEventListener(MouseEvent.MOUSE_DOWN, item_onMouseDown);
        currentClip.buttonMode = false;
    } 
    else
    {    
    currentClip.x = startXposition;
        currentClip.y = startYposition;
    }
}
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1 回答 1

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一旦在任何剪辑上检测到 MouseEvent.MOUSE_DOWN，您应该删除其他剪辑上的侦听器，这将防止它们被拖动。

完成拖动后，您可以将它们添加回来以允许用户再次开始拖动。

于 2012-06-01T15:42:46.240 回答