Raster Island [seagulls edition]

RasterIsland : old school effect [seagulls edition]
integration of LittleAnimEngine see http://wonderfl.net/c/dNCr
can you imagine the sound of the seagulls ?
@by Hasufel 2010

Hasufel

forked:0
favorite:3
lines:155
license : MIT License
modified : 2010-08-29 18:39:57

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package {
    //******************************************************
    //RasterIsland : old school effect [seagulls edition]
    //integration of LittleAnimEngine see http://wonderfl.net/c/dNCr
    //can you imagine the sound of the seagulls ?
    //@by Hasufel 2010
    //*****************************************************/
        
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.Loader;
    import flash.display.Sprite;
    import flash.display.StageAlign;
    import flash.display.StageQuality;
    import flash.display.StageScaleMode;
    import flash.events.Event;
    import flash.geom.Point;
    import flash.geom.Rectangle;
    import flash.utils.ByteArray;
    import flash.utils.Timer;
    import flash.utils.getTimer;

[SWF(width=465, height=465, backgroundColor=0,frameRate=60)]

public class RasterIsland extends Sprite {
        private const _stageW:uint = stage.stageWidth;
        private const _stageH:uint = stage.stageHeight;
        private const _point:Point = new Point();
        private const _graphicsData:Array =["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","47494638396140014100c400006363c6424263c6a56342420063c621e7c6a521216342a521a5a5e72121218484c6e7e7e7c6c6e72142212184214263a54263c600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000021f90400000000002c00000000400141000005ff20f48850399e25899a6a8a8eecdac2b3dbc6244ebfb6ccebbd5c0d481c1a7fc75bd2a7443a9b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"47494638396106000600910300f0ebebd9d7d7ffffffffffff21f90401000003002c00000000060006000002099c7f00168d02914405003b",
"47494638396106000600910300f0ebebd9d7d7ffffffffffff21f90401000003002c00000000060006000002089c8f172101f9922c003b",
"47494638396106000600910200d9d7d7ffffffffffff00000021f90401000002002c0000000006000600000209948f79106df0208205003b"
];
        private var _renderData:BitmapData;
        private var _renderRect:Rectangle;
        private var _renderBitmap:Bitmap;
        private var _renderBgBitmap:Bitmap;
        private var _topBitmap:Bitmap;
        private var _nLines:uint;
        private var _imW:uint;
        private var _imH:uint;
        private var _clock:uint;

private var _loader:Loader;
        private var _assetsMemoryBank:Vector.<BitmapData> = new Vector.<BitmapData>;
        private var _assetsNum:uint = 0;
        private var _pi180:Number = Math.PI/180;
        private var _seaGullsNum:uint = 20;

public function RasterIsland (){
            setProps(stage, {quality:StageQuality.LOW,scaleMode:StageScaleMode.NO_SCALE,align:StageAlign.TOP_LEFT});
            prepareAsset(0);
        }

private function prepareAsset(n:int):void{
            var bytes:ByteArray = new ByteArray();
            var data1:Array=_graphicsData[n].split("");
            var data2:Array=[];
            var d1l:int = data1.length;
            for (var i:int=0;i<d1l;i+=2){
                data2.push("0x"+data1[i]+data1[i+1]);
            }
            var d2l:int = data2.length;
            for (var j:int=0;j<d2l;j++){
                bytes[j] = data2[j];
            }
            _loader = new Loader();
            _loader.contentLoaderInfo.addEventListener(Event.COMPLETE,assetsLoaded);
            _loader.loadBytes(bytes);
        }

private function assetsLoaded(event:Event):void {
            var t:BitmapData = new BitmapData(_loader.content.width,_loader.content.height,true,0x00FFFFFF);
            t.draw(_loader.content);
            _assetsMemoryBank.push(t);
            _assetsNum++;
            if (_assetsNum<_graphicsData.length) {prepareAsset(_assetsNum);}
            else {initAnimation();}
        }

private function initAnimation():void {
            var bgData:BitmapData = new BitmapData(_stageW,_stageH,false,0x000000);
            bgData.fillRect(new Rectangle(0,0,_stageW,_stageH),0x000000);
            var bgBitmap:Bitmap = new Bitmap(bgData);
            addChild(bgBitmap);
            
            _imW = _assetsMemoryBank[0].width;
            _imH = _assetsMemoryBank[0].height;
            _nLines = _imH;
            _renderData = new BitmapData(_imW,_imH,true,0x00FFFFFF);
            _renderRect = new Rectangle(0,0,_imW,_imH);
            _renderBgBitmap = new Bitmap(_assetsMemoryBank[0]);
            setProps(_renderBgBitmap, {x:Math.round(_stageW/2 - 160),y:_assetsMemoryBank[1].height + Math.round(_stageH/2 - 112)});
            addChild(_renderBgBitmap);
            _renderBitmap = new Bitmap(_renderData);
            setProps(_renderBitmap, {x:Math.round(_stageW/2 - 160),y:_assetsMemoryBank[1].height + Math.round(_stageH/2 - 112)});
            addChild(_renderBitmap);
            _topBitmap = new Bitmap(_assetsMemoryBank[1]);
            setProps(_topBitmap, {x:Math.round(_stageW/2 - 160),y:Math.round(_stageH/2 - 112)});
            addChild(_topBitmap);

//add seagulls
            for (var i:uint=0;i<_seaGullsNum;i++){
                var anim:DataSprite = new DataSprite();
                anim.vars[0]=randomNumber(1,3); //x speed of seagull
                animateImagesInit(anim,[2,3,4,3],150-anim.vars[0]*20,randomNumber(0,3));//flapping animation speed according to x speed
                setProps(anim, {name:'a_'+i, x:randomNumber(_topBitmap.x+320,_topBitmap.x+360), y:randomNumber(_topBitmap.y+10,_topBitmap.y+40)});
                addChild(anim);
            }
            var maskData:BitmapData = new BitmapData(60,100,false,0x000000);
            maskData.fillRect(new Rectangle(0,0,60,100),0x000000);
            var maskLeftBitmap:Bitmap = new Bitmap(maskData);
            setProps(maskLeftBitmap,{x:_topBitmap.x - maskLeftBitmap.width ,y:_topBitmap.y});
            addChild(maskLeftBitmap);
            var maskRightBitmap:Bitmap= new Bitmap(maskData);
            setProps(maskRightBitmap,{x:_topBitmap.x + _topBitmap.width ,y:_topBitmap.y});
            addChild(maskRightBitmap);
            addEventListener(Event.ENTER_FRAME, renderDisplay);
        }

private function renderDisplay(e:Event):void {
            _clock = (++_clock)%360;
            _renderData.lock();
            _renderData.fillRect(_renderRect,0x00000000);
            for (var i:uint=0;i<_nLines;i++) {
                _renderData.copyPixels(_assetsMemoryBank[0],new Rectangle(0,i,_imW,1),new Point(Math.cos((_clock+i*10)%360*_pi180)*10,i));
            }
            _renderData.unlock();
            for (i=0;i<_seaGullsNum;i++){
                var a:* = getChildByName('a_'+i);
                a.x-=a.vars[0]-.5;
                if (a.x<_topBitmap.x-10) {setProps(a, {x:randomNumber(_topBitmap.x+320,_topBitmap.x+360), y:randomNumber(_topBitmap.y+10,_topBitmap.y+40)});}
            }
        }

private function animateImagesInit(tgt:*,imAr:Array,spd:uint,stIm:uint):void {
            //imAr are the reference to images stored in assetsMemoryBank, considered here as frames.
            //spd is the animation delay between two frames in milliseconds.
            //stIm is the starting frame
            var e:DataSprite = new DataSprite();
            var xx:uint = _assetsMemoryBank[imAr[0]].width;
            var yy:uint = _assetsMemoryBank[imAr[0]].height;
            
            var bmp:Bitmap = e.addChild(new Bitmap(new BitmapData(xx,yy,true,0x00FFFFFF))) as Bitmap;
            setProps(bmp,{name:'b'});

e.vars[0] = imAr;//images array ref
            e.vars[1] = stIm; //frame counter
            e.vars[2] = new Rectangle(0,0,xx,yy); //xx and yy dimensions for the animation
            e.vars[3] = spd;//animation frequence in milliseconds.
            e.vars[4] = getTimer(); //init timer.
            e.addEventListener(Event.ENTER_FRAME,animateImages);
            tgt.addChild(e);
        }

private function animateImages(e:Event):void{
            var t:* = e.target;
            if (getTimer() - t.vars[4]>t.vars[3]) {
                t.vars[4] = getTimer();
                var b:BitmapData = t.getChildByName('b').bitmapData;
                b.lock();
                b.fillRect(t.vars[2],0x00FFFFFF);
                b.copyPixels(_assetsMemoryBank[t.vars[0][t.vars[1]]],t.vars[2],_point);
                b.unlock();
                t.vars[1] = (++t.vars[1])%t.vars[0].length;
            }
        }

private function randomNumber(low:uint, high:uint):uint{
            return Math.round(Math.random() * (high - low) + low);
        }

private function setProps(o:*,p:Object):void {
            for (var k:String in p) {o[k]=p[k];}
        }
    }
}

import flash.display.Sprite;
class DataSprite extends Sprite {
    public var vars:Array = [];    
}

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