将代码从 Actionscript 2 转换为 Actionscript 3
我有从朋友那里得到的一小段代码，但我无法将其转换为工作的 AS3.0。无论我进行什么更改，我都会不断收到编译器错误。 这是原始代码，我非常感谢您能看一下它。
laser_nodes = 2;
for (var x=1; x<=laser_nodes; x++) {
node = _root.attachMovie("laser", "laser_"+x, x, {_x:Math.random()*460+20, _y:Math.random()*310+20});
node.onPress = function() {
startDrag(this);
};
node.onRelease = function() {
stopDrag();
};
}
_root.createEmptyMovieClip("ray", _root.getNextHighestDepth());
ray.onEnterFrame = function() {
this.clear();
this.lineStyle(3, 0xff0000);
this.moveTo(_root.laser_1._x, _root.laser_1._y);
for (x=2; x<=laser_nodes; x++) {
this.lineTo(_root["laser_"+x]._x, _root["laser_"+x]._y);
}
this.lineTo(_root.laser_1._x, _root.laser_1._y);
};
I have this small piece of code I got from a friend, but i can't manage to translate it into working AS3.0. I keep getting compiler errors no matter what i change.
This is the original piece of code and I would really appreciate you tailing a look at a it.
laser_nodes = 2;
for (var x=1; x<=laser_nodes; x++) {
node = _root.attachMovie("laser", "laser_"+x, x, {_x:Math.random()*460+20, _y:Math.random()*310+20});
node.onPress = function() {
startDrag(this);
};
node.onRelease = function() {
stopDrag();
};
}
_root.createEmptyMovieClip("ray", _root.getNextHighestDepth());
ray.onEnterFrame = function() {
this.clear();
this.lineStyle(3, 0xff0000);
this.moveTo(_root.laser_1._x, _root.laser_1._y);
for (x=2; x<=laser_nodes; x++) {
this.lineTo(_root["laser_"+x]._x, _root["laser_"+x]._y);
}
this.lineTo(_root.laser_1._x, _root.laser_1._y);
};
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这里有很多问题。有些是句法上的，有些则需要新的方法。
例如：
_root在 AS3 中不存在。在 AS3 中，它变为：MovieClip(root)attachMovie在 AS3 中不可用，您必须将其替换为像var node 这样的构造函数调用=新激光(); ...onPress和onRelease回调在 AS3 中不受支持。您需要研究将addEventListener与MouseEvent类一起使用。与onEnterFrame相同 (Event.ENTER_FRAME)createEmptyMovieClip()变为new MovieClip();AS3 中的图形绘制命令现在嵌套在
graphics对象中看来你需要深入研究一下 AS3。这不是一段需要转换的非常直接的代码。
There are a lot of issues here. Some are syntactical, where others require new methods.
for instance:
_rootdoes not exist in AS3. In AS3 it becomes:MovieClip(root)attachMovieis not available in AS3, you'll have to replace it with a constructor call likevar node = new laser(); ...onPressandonReleasecallbacks are not supported in AS3. you'll need to look into using theaddEventListenerw/ theMouseEventclass. Same withonEnterFrame(Event.ENTER_FRAME)createEmptyMovieClip()becomesnew MovieClip();the graphic drawing commands in AS3 are now nested in the
graphicsobject of Sprites.Seems like you'll need to dig into AS3 a little bit for this. It's not a very straight forward bit of code to convert.