array nav 2

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

// forked from Highly's text and timer
package {
    import flash.events.KeyboardEvent;
    import flash.display.Sprite;
    import flash.text.TextField;
    import flash.utils.Timer;
    import flash.events.TimerEvent;
    import flash.events.Event;
    import flash.geom.Point;
    public class FlashTest extends Sprite {
        public function FlashTest() {
            var ti:Timer = new Timer(100,0);
            ti.addEventListener(TimerEvent.TIMER,tmr);
            ti.start();
            var gc:int=30;
            var sn:Number = 0.91;
            var i:int=0;
            var n:int=0;
            var q:int=0;
            var a:Array = [];
            var out1:TextField = new TextField();
            out1.x=0;
            out1.y=0;
            out1.selectable = false;
            out1.multiline = true;
            out1.wordWrap = true;
            out1.width = stage.stageWidth;
            out1.height = stage.stageHeight;
            out1.text = "";
            addChild(out1);
            while(i<gc){
                n=0;
                a.push([]);
                while(n<gc){
                    a[i].push(0);
                    ++n;
                }
                ++i;
            }
            var pt:Point = new Point(0,0);
            function tmr(e:TimerEvent):void{
                nav();
                calc();
                prnt();
            }
            function nav():void{
                if(ku){
                    pt.y--;
                }
                if(kd){
                    pt.y++;
                }
                if(kr){
                    pt.x++;
                }
                if(kl){
                    pt.x--;
                }
            }
            function calc():void{
                if(pt.x>gc-1){
                    pt.x=gc-1;
                }
                if(pt.x<0){
                    pt.x = 0;
                }
                if(pt.y>gc-1){
                    pt.y=gc-1;
                }
                if(pt.y<0){
                    pt.y=0;
                }
                i=0;
                while(i<a.length){
                    n=0;
                    while(n<a[i].length){
                        if(a[i][n]!=a[pt.y][pt.x]){
                            a[i][n]*=sn;
                        }

                        ++n;
                    }
                    out1.appendText("\n");
                    ++i;
                }
                a[pt.y][pt.x] = 9;
            }
            function prnt():void{
                out1.text="";
                i=0;
                while(i<a.length){
                    n=0;
                    while(n<a[i].length){
                        out1.appendText(Math.round(a[i][n])+"  ");
                        ++n;
                    }
                    out1.appendText("\n");
                    ++i;
                }
            }
            var ku:Boolean = false, kd:Boolean = false, kr:Boolean = false, kl:Boolean = false;
            function kpd(e:KeyboardEvent):void{
                //up = 38 down = 40 right = 39 left = 37
                if(e.keyCode == 38){
                    ku = true;
                }
                if(e.keyCode == 40){
                    kd = true;
                }
                if(e.keyCode == 39){
                    kr = true;
                }
                if(e.keyCode == 37){
                    kl = true;
                }
            }
            function kpu(e:KeyboardEvent):void{
                if(e.keyCode == 38){
                    ku = false;
                }
                if(e.keyCode == 40){
                    kd = false;
                }
                if(e.keyCode == 39){
                    kr = false;
                }
                if(e.keyCode == 37){
                    kl = false;
                }
            }

            stage.addEventListener(KeyboardEvent.KEY_UP, kpu);
            stage.addEventListener(KeyboardEvent.KEY_DOWN, kpd);
            
            
        }
    }
}