AS3 localToGlobal 返回看似随机的 x 值

Question

我有一个带有滚动条的主时间线。子时间线包含一个带有按钮的长字符串。我正在使用 localToGlobal 来确定按钮在舞台上的位置，因此我可以在按钮的左侧或右侧弹出相关信息，具体取决于弹出窗口可能落在舞台上的位置。一切似乎都正常工作，直到滚动条移动时间线太多，然后跟踪的 x 值似乎返回随机值。 关于如何获得 x 值的一致结果的任何想法，它只显示我在舞台上单击的位置，所以如果它太靠近左边缘，我可以告诉弹出框向右走，如果太靠近右边缘，我可以告诉它向左走？我已经布置好了结构，它只是主舞台上的 x 值似乎很不稳定。

这是时间轴上的 AS。

stop();

import flash.events.MouseEvent;
import flash.geom.Point;

//attach listeners to all your buttons
btn19980930.addEventListener(MouseEvent.CLICK, showPopup);
btn20110928.addEventListener(MouseEvent.CLICK, showPopup);
btn20111214.addEventListener(MouseEvent.CLICK, showPopup);
btn20120110.addEventListener(MouseEvent.CLICK, showPopup);

//define space in the timeline movie clip
var leftEdge:Number=360;


function showPopup(evt:MouseEvent){
    //figure out which button got clicked
    var buttonClicked = evt.currentTarget;

    //first get the local position of the button
    var localPoint:Point = new Point(buttonClicked.x, buttonClicked.y);


    //then calculate the buttons position in the global space
    var buttonGlobalPoint:Point = buttonClicked.localToGlobal(localPoint);


    trace(localPoint);
    trace(buttonGlobalPoint);


    if (buttonGlobalPoint.x < leftEdge){
        gotoAndStop(buttonClicked.name + "_right");
    } else { 
        gotoAndStop(buttonClicked.name + "_left");
    }

}

Answer 1

你应该可以通过stageX和stageY获取鼠标事件的全局坐标：

var stageMousePoint:Point = new Point(evt.stageX, evt.stageY);

Answer 2

最终奏效的一件事，虽然它很混乱而且过于庞大，但它是复制每个按钮的脚本部分，以便能够为每个按钮提供不同的“leftEdge”参数，这样即使按钮的大小和锚定不同，他们对自定义数字做出反应。我知道可能有一种方法可以压缩脚本，但我正在继续我所知道的。

   // button 01
   //attach listeners to all your buttons
btn19980930.addEventListener(MouseEvent.CLICK, showPopup);

var leftEdge:Number=200;

function showPopup(evt:MouseEvent){
    //figure out which button got clicked
    //figure out which button got clicked
    var buttonClicked = evt.currentTarget;


    //first get the local position of the button
    var stageMousePoint:Point = new Point(buttonClicked.stageX, buttonClicked.stageY);

    //then calculate the buttons position in the global space
    var buttonGlobalPoint:Point = buttonClicked.localToGlobal(localPoint);

    //trace(localPoint);
    trace(buttonGlobalPoint);

    if (stageMousePoint.x < leftEdge){
        gotoAndStop(buttonClicked.name + "_right");
    } else { 
        gotoAndStop(buttonClicked.name + "_left");
    }

}

   // button 02
    //attach listeners to all your buttons
    btn19990224.addEventListener(MouseEvent.CLICK, showPopup);

    var leftEdge2:Number=215;

    function showPopup2(evt:MouseEvent){
        //figure out which button got clicked
        var buttonClicked2 = evt.currentTarget;

        //first get the local position of the button
        var localPoint2:Point = new Point(buttonClicked2.x, buttonClicked2.y);

        //then calculate the buttons position in the global space
        var buttonGlobalPoint2:Point = buttonClicked2.localToGlobal(localPoint2);

        //trace(localPoint);
        trace(buttonGlobalPoint2);

        if (buttonGlobalPoint2.x < leftEdge2){
            gotoAndStop(buttonClicked2.name + "_right");
        } else { 
            gotoAndStop(buttonClicked2.name + "_left");
        }

    }

Answer 3

更好的是，Cadin 提示了使用鼠标的正确方向，而不是担心鼠标的确切位置，我只需要知道鼠标在某个阈值内是在屏幕的左侧还是右侧.我可以决定弹出窗口出现在哪一侧。

stop();

import flash.events.MouseEvent;
import flash.geom.Point;
import flash.display.MovieClip;
import flash.display.DisplayObject;

//attach listeners to all your buttons
btn19980930.addEventListener(MouseEvent.CLICK, showPopup);
btn19990224.addEventListener(MouseEvent.CLICK, showPopup);
btn20010105.addEventListener(MouseEvent.CLICK, showPopup);
btn20050702.addEventListener(MouseEvent.CLICK, showPopup);
btn20060000.addEventListener(MouseEvent.CLICK, showPopup);
btn20060629.addEventListener(MouseEvent.CLICK, showPopup);
btn200720080000.addEventListener(MouseEvent.CLICK, showPopup);
btn20080229.addEventListener(MouseEvent.CLICK, showPopup);
btn20090307.addEventListener(MouseEvent.CLICK, showPopup);
btn20091209.addEventListener(MouseEvent.CLICK, showPopup);
btn20101125.addEventListener(MouseEvent.CLICK, showPopup);
btn20110120.addEventListener(MouseEvent.CLICK, showPopup);
btn20110312.addEventListener(MouseEvent.CLICK, showPopup);
btn20110729.addEventListener(MouseEvent.CLICK, showPopup);
btn20110316.addEventListener(MouseEvent.CLICK, showPopup);
btn20110815.addEventListener(MouseEvent.CLICK, showPopup);
btn20110909.addEventListener(MouseEvent.CLICK, showPopup);
btn20110928.addEventListener(MouseEvent.CLICK, showPopup);
btn20111214.addEventListener(MouseEvent.CLICK, showPopup);
btn20120110.addEventListener(MouseEvent.CLICK, showPopup);

var initialX : Number = 496;

function showPopup(evt:MouseEvent){
    //figure out which button got clicked
    var buttonClicked = evt.currentTarget;

    // not finished, we need to calculate using timeline_mc x and width

    if (stage.mouseX <= 400){
        gotoAndStop(buttonClicked.name + "_right");
    } else { 
        gotoAndStop(buttonClicked.name + "_left");
    }

}