3d flash tutorial ... converting as2 tutorial into as3

1

[FONT=Arial]http://www.kirupa.com/developer/actionscript/more_panning.htm [/FONT]

have been trying to get the tutorial working in as3 …

the original code (as2 code) is as follows

this.createEmptyMovieClip("theScene", 1);
theScene._x = 150;
theScene._y = 150;

objectsInScene = new Array();

cameraView = new Object();
cameraView.x = 0;
cameraView.y = 0;
cameraView.z = 0;
cameraView.rotation = 0;
focalLength = 300;


displayFigure = function(){
    var x = this.x - cameraView.x;
    var z = this.z - cameraView.z;
    var y = this.y;

    var angle = Math.atan2(z,x);
    var radius = Math.sqrt(x*x + z*z);
    x = Math.cos(angle + cameraView.rotation) * radius;
    z = Math.sin(angle + cameraView.rotation) * radius;

    if (z > 0){
        if (!this._visible) this._visible = true;
        var scaleRatio = focalLength/(focalLength + z);
        this._x = x * scaleRatio;
        this._y = y * scaleRatio;
        this._xscale = this._yscale = 100 * scaleRatio;
        this.swapDepths(Math.round(-z));
    }else{
        this._visible = false;
    }
};



for (i=0; i<8; i++){
    attachedObj = theScene.attachMovie("figure", "figure"+i, i);
    if (i < 4){
        attachedObj.x = -200
        attachedObj.z = 50 + i*150
        attachedObj.y = 0;
    }else{
        attachedObj.x = 200
        attachedObj.z = 50 + (i-4)*150
        attachedObj.y = 0;
    }
    attachedObj.display = displayFigure;
    objectsInScene.push(attachedObj);
}


walkAround = function(){
    if (Key.isDown(Key.RIGHT)) cameraView.rotation += .05;
    if (Key.isDown(Key.LEFT)) cameraView.rotation -= .05;
    
    var movement = 0;
    if (Key.isDown(Key.UP)) movement += 10;
    if (Key.isDown(Key.DOWN)) movement -= 10;
    cameraView.x += Math.sin(cameraView.rotation)*movement;
    cameraView.z += Math.cos(cameraView.rotation)*movement;
    
    for (var i=0; i < objectsInScene.length; i++){
        objectsInScene*.display();
    }
};
theScene.onEnterFrame = walkAround;

i came up with the following

var theScene:MovieClip = new MovieClip();
this.addChild(theScene);
theScene.x=150;
theScene.y=150;


var objectsInScene:Array = new Array();

var cameraView:Object = new Object();
cameraView.x=0;
cameraView.y = 0;
cameraView.z = 0;
cameraView.rotation = 0;
var focalLength:Number = 300;



//Im trying to just add one Object out the library which iv

var person:Person = new Person();
theScene.addChild(person);
person.x=200;
person.z=100;
person.y=0;

objectsInScene.push(person);


//HAD TO CHANGE x to x1, y to y1 because of conflicting variables... (said the compiler)
function displayFigure(person:Person) {
    
    var x1 = person.x - cameraView.x;
    var z1 = person.z - cameraView.z;
    var y1 = person.y;
    var angle = Math.atan2(z1,x1);
    var radius = Math.sqrt(x1*x1+ z1*z1);
    x1 = Math.cos(angle + cameraView.rotation) * radius;
    z1 = Math.sin(angle + cameraView.rotation) * radius;
    
    if (z1 > 0){
        if (!person.visible) person.visible = true;
        var scaleRatio = focalLength/(focalLength + z1);
        person.x = x1 * scaleRatio;
        person.y = y1 * scaleRatio;
        person.scaleX = person.scaleY = 100 * scaleRatio;
        //compiler didnt like the following line so had to comment it out 
        //theScene.setChildIndex(person,Math.round(z1));
    }else{
        person.visible = false;
    }
}


//USED A KEY .as class i found on the internet which allows me to use Key.isDown like this 
function walkAround (ev:Event){
    if (Key.isDown(Keyboard.RIGHT)) cameraView.rotation += .05;
    if (Key.isDown(Keyboard.LEFT)) cameraView.rotation -= .05;
    
    var movement = 0;
    if (Key.isDown(Keyboard.UP)) movement += 10;
    if (Key.isDown(Keyboard.DOWN)) movement -= 10;
    cameraView.x += Math.sin(cameraView.rotation)*movement;
    cameraView.z += Math.cos(cameraView.rotation)*movement;
    
    trace (" X " + cameraView.x + " Z "+cameraView.z + " ROT "+cameraView.rotation);
    for (var i=0; i < objectsInScene.length; i++){
        displayFigure(objectsInScene*);
    }
};


theScene.addEventListener(Event.ENTER_FRAME, walkAround);

… it is being accepted as valid code , the coordinates for the objects seem to change without the camera view being changed .

if someone could tell me where im going wrong would appreciate it to no end … thanks . tom.