Practice No9 崩れて溜まる文字列

forked:0
favorite:0
lines:88
license : MIT License
modified : 2010-09-29 23:31:43

Embed: Tweet

package {
    
    import flash.display.Sprite;
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.events.Event;
    import flash.filters.BlurFilter;
    import flash.geom.Point;
    import flash.geom.Rectangle;
    import flash.text.TextField;
    import flash.text.TextFormat;

[SWF(width=465,height=465,backgroundColor=0x000000)]
    
    public class FallParticleText2 extends Sprite {
        
        private const TEXTCOLOR:uint=Math.random()*0xffffff;
        private var b:Bitmap;
        private var bmp:BitmapData;
        private var bmd:BitmapData;
        private var list:Array=new Array;
        private var dept:Array=new Array;
        private var p_num:uint=0;
        private var filter:BlurFilter = new BlurFilter(2,2,2);

public function FallParticleText2() {
            if(stage){
                addEventListener(Event.ADDED_TO_STAGE,init);
            }else{
                init();
            }
        }
        private function init(e:Event=null):void{
            
            removeEventListener(Event.ADDED_TO_STAGE,init);
            
            var tx:TextField=new TextField();
            tx.autoSize="left";
            tx.defaultTextFormat
                =new TextFormat("_ゴシック"
                                ,54
                                ,TEXTCOLOR
                                ,true);
            tx.text="崩れて溜まる文字列";
            var tw:Number=tx.width;
            var th:Number=465;    //tx.height;
            bmp=new BitmapData(tw,465,true,0);
            bmp.draw(tx,null,null,null
                    ,new Rectangle(0,0,int(tw),int(th))
                    ,true);
            b=new Bitmap(bmp,"auto",true);
            addChild(b);
            
            for(var j:int=0;j<int(tw);j++){
                dept.push(int(466));
                for(var i:int=0;i<int(th);i++){
                    var p:Particle = new Particle();
                    p.x = j;
                    p.y = i;
                    p.vy =int(Math.random()*p.y)+1;
                    
                    p.color32 = bmp.getPixel32(j,i) ;
                    p.color = bmp.getPixel(j,i) ;
                    list.push(p);
                    
                }
            }
            addEventListener(Event.ENTER_FRAME, loop);
        }

private function loop(e:Event=null):void{

bmp.applyFilter(bmp,bmp.rect, new Point(0,0),filter);
            var p:Particle;
            bmp.lock();
            var i:uint=0;
            while(i<list.length){
                p=list[i];
                    
                if((p.y+p.vy)>=dept[p.x] && p.vy>0 && (p.color32>>>24)!=0){
                    p.vy=0;
                    dept[p.x]-=1;
                    p.y=dept[p.x];
                }else{
                    p.y+=p.vy;
                }
                bmp.setPixel32(p.x, p.y,p.color32); 
                i++;
            }
            bmp.unlock();
        }
    }   
}

class Particle{
    public var x:Number;
    public var y:Number
    public var vx:Number;
    public var vy:Number;
    public var color:uint;
    public var color32:uint;
}

Code Fullscreen

Preview Fullscreen