forked from: forked from: Triangular Numbers

/**
 * Copyright vlad.el.rojo ( http://wonderfl.net/user/vlad.el.rojo )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/nvOc
 */

// forked from uwi's forked from: Triangular Numbers
// forked from shapevent's Triangular Numbers
package {

    import flash.display.*;
    import flash.text.*;
    import flash.events.*;
    import flash.geom.*;

    // 曲げて表示できないのかなあ
    [SWF(width = 500, height = 500, frameRate=60)]

       public class Triangular extends Sprite {
        private var txt:TextField;
        private var txt2:TextField;
        private var count:int;

        private var text1 : Array;
        private var text2 : Array;

               public function Triangular(){

            txt = TextField(addChild(new TextField()));
            txt.defaultTextFormat = new TextFormat("_sans", 4, 0xcc3333, true, null);
            txt.width = stage.stageWidth / 3;
            txt.height = stage.stageHeight+150;
            txt.z = -250;
            txt.x = stage.stageWidth;
            txt.rotation = 60;
            
            count = 0;
            addEventListener(Event.ENTER_FRAME, onLoop);
            
            txt2 = TextField(addChild(new TextField()));
            txt2.defaultTextFormat = new TextFormat("_sans", 4, 0x3333cc, true, null);
            txt2.width = stage.stageWidth / 3;
            txt2.height = stage.stageHeight+150;
            txt2.z = -100;
            txt2.x = 0;
            txt2.rotation = -30;
            
            text1 = [];
            text2 = [];
               }
               // private methods

        private function onLoop(evt:Event):void{
             count++;
             text1.push(triangular(count).toString(2));
             if(text1.length >= 200)text1.shift();
             text2.push(square(count).toString(2));
             if(text2.length >= 200)text2.shift();
             txt.text = text1.join("\n");
             txt.scrollV= txt.maxScrollV;
             txt2.text = text2.join("\n");
             txt2.scrollV= txt2.maxScrollV;
        }
        private function triangular(n:int):Number{
               return (n * (n + 1)) / 2;
        }
        
        private function square(n:int):Number{
               return n * n;
        }

       }

}