Forked from:: mex's 【AS100本ノック】11回目：ろうそく

forked from: 【AS100本ノック】11回目：ろうそく

AS100本ノック
* 11回目のお題は「ろうそく」
* あなたなりの「ろうそく」を表現してください。
*
* 画像が溶ける
* 最近勉強したdrawTrianglesで描画。

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license : MIT License
modified : 2010-02-08 14:51:11

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// forked from mex's 【AS100本ノック】11回目：ろうそく
/**
 * AS100本ノック
 * 11回目のお題は「ろうそく」
 * あなたなりの「ろうそく」を表現してください。
 * 
 * 画像が溶ける
 * 最近勉強したdrawTrianglesで描画。
 **/
package 
{
	import flash.display.Bitmap;
	import flash.display.BitmapData;
	import flash.display.Loader;
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.events.TimerEvent;
	import flash.net.URLRequest;
	import flash.filters.DisplacementMapFilter;
	import flash.filters.DisplacementMapFilterMode;
	import flash.filters.GradientGlowFilter;
	import flash.filters.BlurFilter;
	import flash.geom.Point;
	import flash.geom.Matrix;
	import flash.utils.Timer;
	import flash.system.LoaderContext;
	/**
	 * @author Mao Takagi
	 */
	[SWF(width = "465", height = "465", backgroundColor = 0x000000, frameRate = "60")]
	public class Main extends Sprite 
	{
		private const MAX_IMAGE_WIDTH:uint = 250;
		private const MAX_IMAGE_HEIGHT:uint = 500;
		private var _points:uint;
		private var _vertices:Vector.<Number>;
		private var _indices:Vector.<int>;
		private var _uvtData:Vector.<Number>;
		private var _pointArray:Vector.<MeltPoint>;
		private var _adjustX:Number;
		private var _adjustY:Number;
		private var _scale:Number;
		
		private var _loader:Loader;
		private var _bitmap:Bitmap;
		private var _bitmapData:BitmapData;
		private var _graphic:Sprite;
		private var _pointMax:uint;
		private var _canvasBmd:BitmapData;
		private var _canvas:Bitmap;
		private var _canvasSprite:Sprite;
		private var _fire:BallUnit;
		private var _fireY:Number;
		
		private var _meltTimer:Timer;
		private var _nowLine:uint;
		private var _firstine:Vector.<MeltPoint>;
		/**
		 * constructor
		 */
		public function Main():void 
		{
			_vertices = new Vector.<Number>();
			_indices = new Vector.<int>();
			_uvtData = new Vector.<Number>();
			_pointArray = new Vector.<MeltPoint>();
			_firstine = new Vector.<MeltPoint>();
			_points = 20;
			_graphic = new Sprite();
			
			_nowLine = 0;
			_meltTimer = new Timer(2 * 1000);
			_meltTimer.addEventListener(TimerEvent.TIMER, onTimerHandler);
			
			var context:LoaderContext = new LoaderContext(true);
			_loader = new Loader();
			_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onImageLoadComplete);
			//_loader.load(new URLRequest("http://farm4.static.flickr.com/3057/2930778027_b4faff737a.jpg"), context);
			_loader.load(new URLRequest("http://farm5.static.flickr.com/4001/4281928692_8f8fe04824.jpg"), context);
		}
		/**
		 * onImageLoadComplete
		 * @param event Event
		 */
		private function onImageLoadComplete(event:Event):void 
		{
			event.target.removeEventListener(Event.COMPLETE, onImageLoadComplete);
			var scaleX:Number = _loader.width / MAX_IMAGE_WIDTH;
			var scaleY:Number = _loader.height / MAX_IMAGE_HEIGHT;
			var matrix:Matrix = new Matrix();
			_scale = 1;
			if (scaleX > 1 || scaleY > 1) 
			{
				_scale = 1 / Math.max(scaleX, scaleY);
				matrix.scale(_scale, _scale);
			}
			_bitmapData = new BitmapData(_loader.width * _scale, _loader.height * _scale, true, 0x00000000);
			_bitmap = new Bitmap(_bitmapData);
			
			_bitmapData.draw(_loader, matrix);
			_bitmap.x = (stage.stageWidth - _bitmap.width) / 2;
			_bitmap.y = (stage.stageHeight - _bitmap.height) / 2;
			_adjustX = (stage.stageWidth - _bitmap.width) / 2;
			_adjustY = (stage.stageHeight - _bitmap.height) / 2;
			
			var spanX:Number = _bitmap.width / _points;
			var spanY:Number = _bitmap.height / _points;
			var i:uint = 0;
			var j:uint = 0;
			for (i = 0;i < _points + 1;i++ )
			{
				for (j = 0;j < _points + 1;j++ )
				{
					var point:MeltPoint = new MeltPoint(j * spanX, i * spanY, _bitmap.height);
					if (i == 0)_firstine.push(point);
					_pointArray.push(point);
				}
			}
			_pointMax = _pointArray.length;
			
			var uvtSpan:Number = 1 / _points;
			var ins:uint = 0;
			for(i = 0;i < _points;i++)
			{
				for (j = 0;j < _points;j++)
				{
					_indices.push(ins + 0, ins + 1, ins + 2);
					_indices.push(ins + 1, ins + 2, ins + 3);
					ins += 4;
					
					_uvtData.push((j) * uvtSpan, (i) * uvtSpan);
					_uvtData.push(((j) * uvtSpan) + uvtSpan, (i) * uvtSpan);
					_uvtData.push((j) * uvtSpan, ((i) * uvtSpan) + uvtSpan);
					_uvtData.push(((j) * uvtSpan) + uvtSpan, ((i) * uvtSpan) + uvtSpan);
				}
			}
			
			_graphic.x = _adjustX;
			_graphic.y = _adjustY;
			
			_canvasSprite = new Sprite();
			_canvasBmd = new BitmapData(stage.stageWidth, stage.stageHeight, true, 0xFF000000);
			_canvas = new Bitmap(_canvasBmd);
			_fire = new BallUnit();
			_fire.x = stage.stageWidth / 2 + _fire.width / 2;
			_canvasSprite.addChild(_fire);
			
			var glowFileter:GradientGlowFilter = new GradientGlowFilter(10, 90, [0xFF0000, 0xFFFF00, 0xFFFFFF], [0.8, 0.6, 1], [0, 120, 255], 8, 10, 1, 1);
			var blurFileter:BlurFilter = new BlurFilter(10, 10, 1);
			_canvasSprite.filters = [blurFileter, glowFileter];
			addChild(_canvas);
			
			addChild(_graphic);
			_meltTimer.start();
			addEventListener(Event.ENTER_FRAME, enterFrameHandler);
			
		}
		/**
		 * fireY
		 * @return Number
		 */
		private function fireY():Number 
		{
			var temp:Array = new Array();
			for (var i:uint = 0; i <  _points + 1;i++ )
			{
				temp.push(_firstine[i].y);
			}
			return Math.min.apply(null, temp) + _adjustY;
		}
		/**
		 * onTimerHandler
		 * @param event TimerEvent
		 */
		private function onTimerHandler(event:TimerEvent):void 
		{
			if (_nowLine < _points)
			{
				var i:uint;
				for (i = 0; i < _points; i++ ) 
				{
					var target:MeltPoint = _pointArray[_nowLine * _points + i];
					target.melt();
				}
				_nowLine++;
			}
		}
		/**
		 * enterFrameHandler
		 * @param event Event
		 */
		private function enterFrameHandler(event:Event):void 
		{
			draw();
		}
		/**
		 * draw
		 */
		private function draw():void 
		{
			var i:uint = 0;
			var j:uint = 0;
			_graphic.graphics.clear();
			_vertices = new Vector.<Number>();
			for (i = 0; i < _points; i++)
			{
				for (j = 0; j < _points; j++)
				{
					var base:uint = i * (_points + 1) + j;
					var leftTop:MeltPoint = _pointArray[base];
					var rightTop:MeltPoint = _pointArray[base + 1];
					var leftBottom:MeltPoint = _pointArray[base + _points + 1];
					var rightBottom:MeltPoint = _pointArray[base + _points + 2];
					
					_vertices.push(leftTop.x, leftTop.y);
					_vertices.push(rightTop.x, rightTop.y);
					_vertices.push(leftBottom.x, leftBottom.y);
					_vertices.push(rightBottom.x, rightBottom.y);
				}
			}
			_graphic.graphics.beginBitmapFill(_bitmapData);
			_graphic.graphics.drawTriangles(_vertices, _indices, _uvtData);
			_graphic.graphics.endFill();
			
			_fire.y = fireY();
			_canvas.bitmapData.dispose();
			var bmd:BitmapData = new BitmapData(stage.stageWidth, stage.stageHeight, true, 0xFF000000);
			bmd.lock();
			bmd.draw(_canvasSprite);
			bmd.unlock();
			bmd.paletteMap(bmd, bmd.rect, bmd.rect.topLeft, null, null, null);
			_canvas.bitmapData = bmd;
		}
	}
}

import flash.geom.Point;
import org.libspark.betweenas3.BetweenAS3;
import org.libspark.betweenas3.events.TweenEvent;
import org.libspark.betweenas3.tweens.ITween;
class MeltPoint extends Point
{
	private var _target:Number;
	private var _rate:Number;
	private var _tempTarget:Number;
	/**
	 * constructor
	 */
	public function MeltPoint(x:Number, y:Number, target:Number)
	{
		super(x, y);
		_target = target;
		_rate = _target / 10;
	}
	/**
	 * melt
	 * @param 
	 */
	public function melt():void 
	{
		_tempTarget = _rate + y;
		if (_tempTarget < _target) 
		{
			var t:ITween = BetweenAS3.tween(this, { y:_tempTarget }, null, Math.random() * 2 + 6);
			t.addEventListener(TweenEvent.COMPLETE, function():void
			{
				t.removeEventListener(TweenEvent.COMPLETE, arguments.callee);
				melt();
			});
			t.play();
		}
	}
}

import flash.display.Sprite
class BallUnit extends Sprite
{
	private var _ballArray:Vector.<Ball>;
	/**
	 * constructor
	 */
	public function BallUnit()
	{
		_ballArray = new Vector.<Ball>();
		
		for (var i:uint = 0; i < 5;i++ )
		{
			var ball:Ball = new Ball(35 - (i * 4));
			ball.y = -i * 5;
			_ballArray.push(ball);
			if (i != 0)
			{
				_ballArray[i - 1].addChild(ball);
			}
			else
			{
				addChild(ball);
			}
		}
	}
}

import flash.display.Sprite
import flash.events.Event;
import flash.filters.BlurFilter;
class Ball extends Sprite
{
	/**
	 * constructor
	 * @param size
	 */
	public function Ball(size:uint)
	{
		var sprite:Sprite = new Sprite();
		sprite.graphics.beginFill(0xFFFFFF);
		sprite.graphics.drawCircle(0, 0, size / 2);
		sprite.graphics.endFill();
		sprite.x = -size / 2;
		sprite.y = -size / 2;
		
		var filter:BlurFilter = new BlurFilter();
		sprite.filters = [filter];
		
		addChild(sprite);
		addEventListener(Event.ENTER_FRAME, enterFrameHandler);
	}
	/**
	 * enterFrameHandler
	 * @param event
	 */
	private function enterFrameHandler(event:Event):void
	{
		x += Math.random() * Math.random()*(2 - (-2) + 1) + (-2) - x;
		y += Math.random() * Math.random()*(6 - (-6) + 1) + (-6) - y - 6;
	}
}

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