Forked from:: soundkitchen's パァン！

ブシャ！

forked:4
favorite:16
lines:173
license : MIT License
modified : 2009-09-15 21:26:31

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// forked from soundkitchen's パァン！
package
{
    import flash.display.BlendMode;
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.events.TimerEvent;
    import flash.text.TextField;
    import flash.text.TextFieldAutoSize;
    import flash.text.TextFormat;
    import flash.filters.BitmapFilterQuality;
    import flash.filters.BlurFilter;
    import flash.geom.Point;
    import flash.utils.Timer;

import com.flashdynamix.utils.SWFProfiler;
    import frocessing.color.ColorHSV;
    import org.libspark.betweenas3.BetweenAS3;
    import org.libspark.betweenas3.easing.*;
    import org.libspark.betweenas3.tweens.ITween;

[SWF(width=465, height=465, frameRate=60, backgroundColor=0x000000)]
    public class Main extends Sprite
    {
        private static var P_ZERO:Point = new Point();
        private static var F_BLUR:BlurFilter = new BlurFilter(4, 4, BitmapFilterQuality.LOW);

private var _txt:TextField;
        private var _hsv:ColorHSV;
        private var _film:BitmapData;
        private var _timer:Timer;
        private var _activeParticles:Vector.<Particle>;
        private var _inactiveParticles:Vector.<Particle>;

public function Main()
        {
            graphics.beginFill(0)
            graphics.drawRect(0,0,stage.stageWidth, stage.stageHeight)
            addEventListener(Event.ADDED_TO_STAGE, initialize);
        }

private function initialize(evt:Event):void
        {
            removeEventListener(Event.ADDED_TO_STAGE, initialize);

SWFProfiler.init(this);
            
            var i:uint,
                fmt:TextFormat,
                bm:Bitmap;

_activeParticles = new Vector.<Particle>();
            _inactiveParticles = new Vector.<Particle>();
            for (i=0; i<10000; i++)
            {
                _inactiveParticles.push(new Particle());
            }

_hsv = new ColorHSV(0, 1, 1, 1);

fmt = new TextFormat();
            fmt.font = "Verdana";
            fmt.bold = true;
            fmt.size = 36;

_txt = new TextField();
            _txt.defaultTextFormat = fmt;
            _txt.autoSize = TextFieldAutoSize.LEFT;
            _txt.text = "ブシャ！";

_film = new BitmapData(stage.stageWidth, stage.stageHeight, true, 0);
            bm = new Bitmap(_film);
            //bm.blendMode = BlendMode.ADD;
            addChild(bm);
            
            _timer = new Timer(0);
            _timer.addEventListener(TimerEvent.TIMER, timerHandler);
            _timer.start();

addEventListener(Event.ENTER_FRAME, enterFrameHandler);
        }

private function enterFrameHandler(evt:Event):void
        {
            var i:uint,
                p:Particle;

_hsv.h = (Math.random() - 0.5) * 40;

_film.lock();
            _film.applyFilter(_film, _film.rect, P_ZERO, F_BLUR);
            for (i=0; i<_activeParticles.length; i++)
            {
                p = _activeParticles[i];
                p.x += p.vx;
                p.y += p.vy;
                p.life--;

_film.setPixel32(p.x, p.y, p.color);

if (!p.life)
                {
                    _activeParticles.splice(i, 1);
                    _inactiveParticles.push(p);
                    i--;
                }
            }
            _film.unlock();
        }

private function timerHandler(evt:TimerEvent):void
        {
            _timer.delay = (50 + Math.random() * 950) >> 0;

var sp:Sprite,
                bm:Bitmap,
                bmd:BitmapData,
                t:ITween;

//_hsv.h = ++_hsv.h % 360;
            _txt.textColor = _hsv.value;

bmd = new BitmapData(_txt.width, _txt.height, true, 0);
            bmd.draw(_txt);

bm = new Bitmap(bmd);
            bm.smoothing = true;
            bm.x -= bm.width >> 1;
            bm.y -= bm.height >> 1;

sp = new Sprite();
            sp.addChild(bm);
            sp.x = (Math.random() * stage.stageWidth) >> 0;
            sp.y = (Math.random() * stage.stageHeight) >> 0;
            sp.scaleX = 0;
            sp.scaleY = 0;
            sp.rotation = (Math.random() * 360) >> 0;
            //sp.blendMode = BlendMode.ADD;

addChild(sp);

t = BetweenAS3.serial(
                BetweenAS3.to(sp, {
                    'scaleX': 1,
                    'scaleY': 1,
                    'rotation': 0
                }, 2, Expo.easeIn),
                BetweenAS3.removeFromParent(sp)
            );

t.onComplete = tweenComplete;
            t.onCompleteParams = [sp, bm, bmd];
            t.play();
        }

private function tweenComplete(sp:Sprite, bm:Bitmap, bmd:BitmapData):void
        {
            var i:uint, j:uint, c:uint,
                cx:Number, cy:Number,
                angle:Number, strength:Number,
                p:Particle;

cx = sp.x + bm.x;
            cy = sp.y + bm.y;

for (i=0; i<bmd.width; i++)
            {
                for (j=0; j<bmd.height; j++)
                {
                    c = bmd.getPixel32(i, j);

if (!c) continue;

p = _inactiveParticles.length ? _inactiveParticles.shift() : new Particle();

angle = Math.random() * Math.PI * 2;
                    strength = Math.random() * 20;

p.vx = Math.cos(angle) * strength;
                    p.vy = Math.sin(angle) * strength;
                    p.x = cx + i;
                    p.y = cy + j;
                    p.color = c;
                    p.life = 200;

_activeParticles.push(p);
                }
            }
            bmd.dispose();
            
            var flash :Sprite = new Sprite()
            flash.graphics.beginFill(0xFFFFFF)
            flash.graphics.drawRect(0,0,stage.stageWidth, stage.stageHeight)
            flash.blendMode = BlendMode.OVERLAY
            flash.alpha = 0
            addChild(flash)
            BetweenAS3.serial(
                BetweenAS3.tween(flash, {alpha:0}, {alpha:1},0.3, Sine.easeIn),
                BetweenAS3.removeFromParent(flash)
            ).play()
        }
    }
}

class Particle
{
    public var vx:Number;
    public var vy:Number;
    public var x:Number;
    public var y:Number;
    public var color:uint;
    public var life:uint;
}

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なんかしばらく見てたらデバッグ版プレーヤーに
TypeError: Error #1009: null のオブジェクト参照のプロパティまたはメソッドにアクセスすることはできません。
at org.libspark.betweenas3.tickers::EnterFrameTicker/update()
って怒られちゃいました。むしろBetweenAs3のバグなのかもですが、一応ご報告をば。

by esukei
at 2009/09/15 21:39:09