Translating code from Actionscript 2 to Actionscript 3

Question

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);
};

It would help if you post the specific compiler errors you're getting. — sean
– sean, Commented Oct 27, 2011 at 15:54
It would also help if you post the Actionscript 3 code that you've created so far. — user677526
– user677526, Commented Oct 27, 2011 at 16:14

gthmb · Accepted Answer · 2011-10-27 16:12:13Z

2

There are a lot of issues here. Some are syntactical, where others require new methods.

for instance:

_root does not exist in AS3. In AS3 it becomes: MovieClip(root)
attachMovie is not available in AS3, you'll have to replace it with a constructor call like var node = new laser(); ...
onPress and onRelease callbacks are not supported in AS3. you'll need to look into using the addEventListener w/ the MouseEvent class. Same with onEnterFrame (Event.ENTER_FRAME)
createEmptyMovieClip() becomes new MovieClip();
the graphic drawing commands in AS3 are now nested in the graphics object 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.

answered Oct 27, 2011 at 16:12

gthmb

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