asahi.com ぱーてぃくる

by nitoyon 21 Dec 2008

• Forked from munegon's ぱーてぃくる
• Diff: 48
• Related works: 9
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// forked from munegon's ぱーてぃくる
// write as3 code here..
package {
    import flash.display.*;
    import flash.events.*;
    import flash.geom.*;
    import flash.net.*;
    import flash.text.*;
    
    public class BulletDemo extends Sprite {
        private var URL:String = "http://pipes.yahooapis.com/pipes/pipe.run?_id=cEreGvJi3BG2_zgYxQnzeQ&_render=rss&url=http%3A%2F%2Fwww.asahi.com%2F";
        private var text:String;
        private var textIndex:int = 0;
        private var SPEED_FO:Number = 0.8;
        
        private var canvas_bd:BitmapData;
        private var ctf:ColorTransform;
        private var tf:TextFormat;
        private var temp:Sprite;
        
        public function BulletDemo () {
            tf = new TextFormat();
            tf.size = 16;
            tf.bold = true;

            var req:URLRequest = new URLRequest(URL);
            var loader:URLLoader = new URLLoader();
            loader.addEventListener("complete", function(event:Event):void{setup(loader.data);});
            loader.addEventListener("ioError", function(event:Event):void{log("load error!!!");});
            loader.addEventListener("securityError", function(event:Event):void{log("sec error!!!");});
            loader.load(req);
        }

        private function log(msg:String):void{
            var text:TextField = new TextField();
            text.text = msg;
            addChild(text);
        }

        private function setup(data:Object):void {
            var xml:XML = XML(data);
            if(!xml){ log(data.toString()); return;}
            text = xml..item.title.text().toString();

            canvas_bd = new BitmapData( stage.stageWidth, stage.stageHeight, false, 0x000000 );
            addChild( new Bitmap( canvas_bd ) );
            
            ctf = new ColorTransform( SPEED_FO, SPEED_FO, SPEED_FO, 1.0 );
            temp = new Sprite();
            
            addEventListener( Event.ENTER_FRAME, update, false, 10 );
        }
        
        private function update( e:Event ):void {
            for ( var i:int = 0; i < 1; ++i ) {
                fire();
            }
            
            canvas_bd.colorTransform( canvas_bd.rect, ctf );
        }
        
        private function fire():void {
            var x:Number = stage.stageWidth / 2;
            var y:Number = stage.stageHeight / 2;
            var v:Number = 3*Math.random();
            var r:Number = 2*Math.PI * Math.random();
            var vx:Number = v * Math.cos( r );
            var vy:Number = v * Math.sin( r );
            
            var size:Number = 1 + 4*Math.random();
            var color:uint = 0xffffff * Math.random();
            
            var mtx:Matrix = new Matrix();
            
            var bullet:TextField = new TextField();
            bullet.textColor = color;
            bullet.defaultTextFormat = tf;
            bullet.autoSize = "left";
            var len:int = Math.random() * 5;
            bullet.text = text.substr(textIndex, len);
            textIndex = (textIndex + len) % text.length;
            bullet.selectable = false;
            
            temp.addChild( bullet );
            
            bullet.addEventListener( Event.ENTER_FRAME, function( e:Event ):void {
                v += 0.1;
                r += 0.03;
                vx = v * Math.cos( r );
                vy = v * Math.sin( r );
                x += vx;
                y += vy;
                mtx.tx = x;
                mtx.ty = y;
                
                canvas_bd.draw( bullet, mtx );
                
                if ( ( x < 0 ) || ( y < 0 ) || ( x > stage.stageWidth ) || ( y > stage.stageHeight ) ) {
                    bullet.removeEventListener( e.type, arguments.callee );
                    temp.removeChild( bullet );
                    bullet = null;
                }
            }, false, 1 );
        }
    }
}