我正在制作可点击对象的点击游戏。当玩家将鼠标移到对象上时,光标旁边会出现一个工具提示。它几乎可以按照以下代码的预期工作:
private function added():void
{
removeEventListener(Event.ADDED, added);
this.addEventListener(TouchEvent.TOUCH, onTouch);
}
protected function onTouch(e:TouchEvent):void
{
var touchHover:Touch = e.getTouch(this, TouchPhase.HOVER);
if (touchHover)
{
trace("show");
//mouse is hovered over this object. Therefore call Hovertext:
if (Game.hoverText.message != name_)
Game.hoverText.message = name_
}
else
{
//mouse leaves the object
trace("hide");
Game.hoverText.hideMessage(name_);
}
}
但是,它有一个我不明白的奇怪问题。如果我将鼠标移到对象上然后将其向下移动仍然停留在对象上,它会在每隔一帧左右触发隐藏功能。当我将光标向右移动时会发生同样的事情,但向上或向左移动时不会。
所以我的问题是我的代码有什么问题?这甚至是检测鼠标何时滚过物体以及何时滚开的最佳方法吗?
编辑:我一直在经历以下迭代,每个迭代都有相同的问题:
var touch:Touch = event.getTouch(this);
if (touch == null) {
// Set Object alpha to 0;
//trace("pois");
Game.hoverText.hideMessage(name_);
}
else if (touch.phase == TouchPhase.HOVER) {
// Set Object alpha to 1;
//trace("paalla");
if (Game.hoverText.message != name_)
Game.hoverText.message = name_;
}
else {
// for a phase BEGIN/MOVE/STATIONARY case
// see if the touch is over the bounds of the tile (assuming 'this' is the tile)
HELPER_POINT.x = touch.globalX;
HELPER_POINT.y = touch.globalY;
this.globalToLocal(HELPER_POINT, HELPER_POINT);
if(this.hitTest(HELPER_POINT, true) != null)
{
// Set Object alpha to 1; over tile
trace("paalla");
}
else
{
// Set Object alpha to 0; not over tile
trace("pois");
}
}
var touchHover:Touch = e.getTouch(this);
if (touchHover && touchHover.phase == TouchPhase.HOVER)
{
trace("show");
//mouse is hovered over this object. Therefore call Hovertext:
if (Game.hoverText.message != name_)
Game.hoverText.message = name_
}
if (touchHover == null)
{
//mouse leaves the object
trace("hide");
Game.hoverText.hideMessage(name_);
}
这里还有 swf 来证明这个问题: http: //www.students.tut.fi/~salmi26/ScorpionBox.html