AS3 Bouncing Ball

Question

Okay, after learning tutorials online, I'm trying to make a bouncing ball in AS3.

Here's my code thus far:

var count:Number = 0;
var bounceHeight:Number = 100;
var floorHeight:Number = 300;
var speed:Number = .1;

function run(e:Event):void
{
ball_mc.y = floorHeight - Math.abs(Math.cos(count)) * bounceHeight;
count += speed;
}

{
this.addEventListener(Event.ENTER_FRAME(run));
}

Thanks in advance for the help!

EDIT: The compiler errors are

Scene 1, Layer 'Layer 1', Frame 1, Line 13 1195: Attempted access of inaccessible method ENTER_FRAME through a reference with static type Class.

Scene 1, Layer 'Layer 1', Frame 1, Line 13 1136: Incorrect number of arguments. Expected 2.

Answer 1

Within your closure, addEventListener requires a type parameter and a listener function.

Your type is Event.ENTER_FRAME and your handler is run, which means to call run every frame you need:

addEventListener(Event.ENTER_FRAME, run);

Therefore, your code should be:

function run(e:Event):void
{
    ball_mc.y = floorHeight - Math.abs(Math.cos(count)) * bounceHeight;
    count += speed;
}

this.addEventListener(Event.ENTER_FRAME, run);