forked from: forked from: Bounce

by fukt 02 Nov 2009
Embed
// forked from fukt's forked from: Bounce
// forked from butr0s's Bounce
package {
	import flash.display.Sprite;
	[SWF(width="640", height="480", backgroundColor="0x003300", frameRate="30")]
	public class Bounce extends Sprite {
		public function Bounce():void {	main = this; initialize(); }
	}
}

import flash.display.*;
import flash.events.*;

const SCREEN_WIDTH:int = 640, SCREEN_HEIGHT:int = 480;
var main:Sprite, g:Graphics;
var collections:Array = new Array();
var color:int = 0x00ff00;
var ticks:int = 10;
var start:Collection = new Collection();

function initialize():void {
	g = main.graphics;
	main.addEventListener(Event.ENTER_FRAME, update);
}

function update():void {
	g.clear();
	ticks++;
	
	if(collections.length < 10 && ticks > 2) {
		ticks = 0;
		var blur:Collection = new Collection();

		for(var i:int = 0; i < blur.contents.length; i++) {
			blur.contents[i].position.x = start.contents[i].position.x;
			blur.contents[i].position.y = start.contents[i].position.y;
			blur.contents[i].velocity.x = start.contents[i].velocity.x;
			blur.contents[i].velocity.y = start.contents[i].velocity.y;
		}
		collections.push(blur);
	}
	
	var thickness:int = 1, alpha:Number = 1;
	for each(var c:Collection in collections) {
		thickness += 0.1; alpha -= 0.0;
		c.update(thickness, color, alpha);
	}
}

class Collection {
	public var contents:Array = new Array();
	
	public function Collection():void {
		contents.push(new Point());
		contents.push(new Point());
		contents.push(new Point());
		contents.push(new Point());
	}

	public function update(width:int = 3, color:int = 0xff0000, alpha:Number = 0.1):void {
		// Update individual points
		for each(var p:Point in contents) p.update();
		
		// Draw lines
		g.lineStyle(width, color, alpha);
		g.moveTo(contents[contents.length - 1].position.x, contents[contents.length - 1].position.y);
		for each(p in contents) g.lineTo(p.position.x, p.position.y);
	}
}

class Point {
	public var position:Object = new Object;
	public var velocity:Object = new Object;
	
	public function Point():void {
		position.x = Math.random() * SCREEN_WIDTH;
		position.y = Math.random() * SCREEN_HEIGHT;
		velocity.x = Math.random() * 30;
		velocity.y = Math.random() * 30;
	}
	
	public function update():void {
		// Move
		position.x += velocity.x;
		position.y += velocity.y;
		
		if(position.x < 0 || position.x > SCREEN_WIDTH)	velocity.x *= -1;
		if(position.y < 0 || position.y > SCREEN_HEIGHT) velocity.y *= -1;
	}
}