Tutorial | Animating with Physics and AS3

5 June, 2008 in Flash, Tutorials
Tags: , , , , , , , , , ,

This tutorial is for anyone who wants to learn how to animate objects with the help of some simple physics. All done by Actionscript 3.0 of course.

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2 Replies

  1. jodi

    4 October, 2008 at 4:36 am

    I am so confused how I can use an illustrator file (image) with an as file (movement). Here is the as file to animate a simple red ball

    package
    {
    import flash.display.Sprite;
    import flash.events.Event;

    public class Bobbing extends Sprite {
    private var ball:Ball;
    private var angle:Number = 0;
    private var centerY:Number = 200;
    private var range:Number = 50;
    private var speed:Number = .1;

    public function Bobbing() {
    init();
    }
    private function init():void {
    ball = new Ball();
    addChild(ball);
    ball.x = stage.stageWidth / 2;
    addEventListener(Event.ENTER_FRAME, onEnterFrame);
    }
    public function onEnterFrame(event:Event):void {
    ball.y = centerY + Math.sin(angle) * range;
    angle += speed;
    }
    }
    }

  2. jodi

    4 October, 2008 at 4:36 am

    package
    {
    import flash.display.Sprite;
    import flash.events.Event;

    public class Bobbing extends Sprite {
    private var ball:Ball;
    private var angle:Number = 0;
    private var centerY:Number = 200;
    private var range:Number = 50;
    private var speed:Number = .1;

    public function Bobbing() {
    init();
    }
    private function init():void {
    ball = new Ball();
    addChild(ball);
    ball.x = stage.stageWidth / 2;
    addEventListener(Event.ENTER_FRAME, onEnterFrame);
    }
    public function onEnterFrame(event:Event):void {
    ball.y = centerY + Math.sin(angle) * range;
    angle += speed;
    }
    }
    }

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