如何在bitmapData和对象之间正确使用hitTest？
我已将 PNG 转换为位图，然后将其转换为 bitmapData。
我有一个名为 _player 的对象，我希望添加碰撞检测，但我似乎可以让它工作。
我的代码是：
if(bmd1.hitTest(new Point(_player.x, _player.y))){
trace("hit");
}
bmd1 是我的 bitmapData，_player 是希望测试的对象。
我收到以下错误：
1136: Incorrect number of arguments, Expected 3
我环顾四周，但找不到我缺少的参数 有什么
想法吗？
更新
尝试
if(bmd1.hitTest(new Point(_player.x, _player.y), 50, _player)){
trace("hit");
}
我没有高兴地
更新2
抱歉，我应该提到，我采取这种方法的原因是我有一个带有透明区域的PNG，我需要测试非透明区域中的碰撞，这就是我使用这种方法的原因
我有一个PNG，我导入它并转换为位图，然后转换为bitmapData
我也许这样做完全错误。你能告诉我问题出在哪里吗？
I have converted a PNG into a bitmap, then converted that into bitmapData.
I have a object called _player, and I wish to add collision detection, however I can seem to get it to work.
my code is:
if(bmd1.hitTest(new Point(_player.x, _player.y))){
trace("hit");
}
bmd1 is my bitmapData,_player is the object is wish to test against.
I am getting the following error:
1136: Incorrect number of arguments, Expected 3
I have looked around but cannott find what argument I am missing
Any ideas?
Update
I have tried
if(bmd1.hitTest(new Point(_player.x, _player.y), 50, _player)){
trace("hit");
}
with no joy
Update 2
Sorry, I should mention that the reason for me taking this approach is that I have a PNG, with transparent areas, I need to test for collisions in the non-transparent areas, which is why I was using this approach
I have a PNG, i import that and convert to bitmap, then convert to bitmapData
I maybe doing this completely wrong. Could you show me where the problem lies?
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hitTest 有 3 个强制参数：
检查 文档
hitTest has 3 mandatory arguments:
Check the doc
最后，我将播放器影片剪辑转换为位图数据，将 png 贴图转换为位图数据，然后使用 hitTest 来检查每个位图的 x 和 y
In the end I converted my player movieclip to bitmapdata, converted my png map to bitmap data, then used hitTest to check the x and y of each bitmap against each other
您想要的方法是 hitTestPoint() 而不是 hitTest()
编辑：哎哟我错过了您正在针对 BitmapData 而不是 DisplayObject 进行命中测试。 BitmapData.hitTest() 执行像素级检测，在许多情况下速度相当慢。您最好将 BitmapData 放入 Sprite 中，然后使用 hitTestPoint()
The method you want is hitTestPoint() not hitTest()
EDIT: whoops I missed that you were doing the hit test against BitmapData instead of a DisplayObject. BitmapData.hitTest() performs pixel-level detection which is pretty slow in many situations. You're probably better off putting the BitmapData into a Sprite and then using hitTestPoint()