/**
 * 25-Line ActionScript Contest Entry
 * 
 * Project: Jared Tarbell's Substrate in 25 lines
 * Author: Oliver "gencha" Salzburg ( gencha@dirty-motherfucker.org )
 * Date: 2008-11-21
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
 
// 3 free lines! Alter the parameters of the following lines or remove them.
// Do not substitute other code for the three lines in this section
[SWF(width=1024, height=768, backgroundColor=0xffffff, frameRate=120)]
stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;
// 25 lines begins here!
if( null == stack ) {
	var stack:Object = new Object();
	stage.addChild( stack.t = new TextField() );
	stack.timer = new Timer( ( ( stack.walker = new Array( stack.t.defaultTextFormat = new TextFormat( "Arial", 15 ) ) ) && ( this.addChild( new Bitmap( stack.canvas = new BitmapData( stage.stageWidth, stage.stageHeight, false, 0xffffff ) ) ) ) ) ? 1 : 1 );
	for( var walkerIdx:uint = ( stack.t.autoSize = TextFieldAutoSize.LEFT ); walkerIdx < int( stack.t.filters = [ new GlowFilter( 0xffffff, 1.0, 6.0, 6.0, 255.0 ) ] ) + 10; ++walkerIdx ) {
		stack.walker[ walkerIdx ] = new Object();
		stack.walker[ walkerIdx ].birth = function( rebirth:uint ):void {
			if( rebirth & 1 ) stack.canvas.setPixel( Math.random() * stage.stageWidth, Math.random() * stage.stageHeight, int( Math.random() * 360 ) );
			this.pos = new Point( Math.random() * stage.stageWidth, Math.random() * stage.stageHeight * ( stack.t.text = "Jared Tarbell's Substrate in 25 lines by gencha" ) );
			if( ( rebirth & 2 ) && stack.walker.length < 400 ) stack.walker[ stack.walker.push( { birth:this.birth } ) - 1 ].birth( 4 );
			while( ( rebirth & 4 ) && 0xffffff == stack.canvas.getPixel( this.pos.x, this.pos.y ) ) {
				this.pos = new Point( Math.random() * stage.stageWidth, Math.random() * stage.stageHeight );
			}
			this.dir = ( uint( stack.canvas.getPixel( this.pos.x, this.pos.y ) + 90 * ( ( Math.random() > 0.5 ) ? 1 : -1 ) ) % 360 ) + ( Math.random() * 4 - 2 );
			this.cur = ( Math.random() > 0.9 ) ? ( Math.random() * 0.4 - 0.2 ) : 0;
		}
		stack.walker[ walkerIdx ].birth( 1 | 4 );
	}
	stack.timer.addEventListener( TimerEvent.TIMER, function mainLoop( event:TimerEvent ):void {
		if( 952 > stack.timer.currentCount ) for each( var walker:Object in stack.walker ) {
			stack.canvas.setPixel( int( 1 / int( walker.dir += walker.cur ) ) + walker.pos.x, walker.pos.y, ( Math.random() > 0.95 ) ? 0xfffffe : walker.dir );
			walker.pos = walker.pos.add( new Point( 0.9 * Math.cos( walker.dir * ( Math.PI / 180 ) ), 0.9 * Math.sin( walker.dir * ( Math.PI / 180 ) ) ) );
			if( !new Rectangle( 0, 0, stage.stageWidth, stage.stageHeight ).containsPoint( walker.pos.add( new Point( 0.9 * Math.cos( walker.dir * ( Math.PI / 180 ) ), 0.9 * Math.sin( walker.dir * ( Math.PI / 180 ) ) ) ) ) || stack.canvas.getPixel( walker.pos.add( new Point( 0.9 * Math.cos( walker.dir * ( Math.PI / 180 ) ), 0.9 * Math.sin( walker.dir * ( Math.PI / 180 ) ) ) ).x, walker.pos.add( new Point( 0.9 * Math.cos( walker.dir * ( Math.PI / 180 ) ), 0.9 * Math.sin( walker.dir * ( Math.PI / 180 ) ) ) ).y ) != 0xffffff ) walker.birth( 2 | 4 );
		} else {
			stack.canvas.fillRect( new Rectangle( 0, 0, stage.stageWidth, stage.stageHeight ), 0xffffff );
			var n:Boolean = ( ( stack.walker.splice( 10 ) ) && ( stack.timer.reset() == undefined ) && ( stack.timer.start() == undefined ) );
			for each( var w:Object in stack.walker ) w.birth( 1 | 4 );
		}
	} );
	stack.timer.start();
}
// 25 lines ends here!