Controlling an object with the arrows

[FlashAahaah]

Hello,

I'm trying to use a tutorial to teach myself how to make a basic flash game:
http://www.webzo.org/tutorials/flash...d-movement.php

Unfortunately this tutorial uses AS2 and I would like to teach myself AS3, since it's more recent. I try to do the spaceship movement code but when the program runs it tells me: "Access of undefined property Key."

Here is the code:
this.onEnterFrame = function() {
if (Key.isDown(Key.RIGHT)) {
Ship._x += 10;
} else if (Key.isDown(Key.LEFT)) {
Ship._x -= 10;
} else if (Key.isDown(Key.UP)) {
Ship._y -= 10;
} else if (Key.isDown(Key.DOWN)) {
Ship._y += 10; }
}

I understand it is a coding difference between AS2 and AS3. What do I need to do to convert it to AS3?

[5TonsOfFlax]

Don't use that tutorial if you want to use AS3, it'll just confuse you.

In AS3, event listeners are added with addEventListener rather than setting an onEventName property. Event listeners are passed an Event object as a parameter.

All the _something properties lose the _. So _x becomes x and _y becomes y.

There is no Key class in AS3, but the constants are in the Keyboard class. There is no direct equivalent of Key.isDown, but there is a package out there that Senocular made which implements an AS2 like interface. But I'd just use KeyboardEvent.KEY_DOWN and KeyboardEvent.KEY_UP listeners.

Variables and instancenames should start with lowercase letters. Use "ship" rather than "Ship". Only classes should start with uppercase letters.

[rynoe]

stage.addEventListener(KeyboardEvent.KEY_DOWN, keyHandler);

function keyHandler(evt:KeyboardEvent){
    if(evt.keyCode==37){
          trace("left");
    }
    if(evt.keyCode==38){
          trace("up");
    }
    if(evt.keyCode==39){
          trace("right");
    }
    if(evt.keyCode==40){
          trace("down");
    }
}

[FlashAahaah]

Thanks, and you are right, I see that AS2 and AS3 are quite different so I will use other tutorials.