flash on 2012-9-21

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

package {
    import flash.ui.Keyboard;
    import flash.events.KeyboardEvent;
    import flash.display.Graphics;
    import flash.events.Event;
    import flash.display.Sprite;
    public class FlashTest extends Sprite {
        
        
        public var bg:Sprite;
        public var ps:Sprite;
        
        public function FlashTest() {
            // write as3 code here..
        
            bg = new Sprite();
            var g:Graphics;
            g = bg.graphics;
            g.clear();
            g.beginFill(0,1);
            g.drawRect(0,200,400,200);
            g.endFill();
            
            g.beginFill(0,1);
            g.drawRect(0,0,60,200);
            g.endFill();
            
            g.beginFill(0,1);
            g.drawRect(300,0,100,200);
            g.endFill();
            
            g.beginFill(0,1);
            g.drawEllipse(150,150,400,300);
            g.endFill();
            
            addChild(bg);
        
            ps = new Sprite();
            g = ps.graphics;
            g.clear();
            g.beginFill(0xFF0000,1);
            g.drawCircle(0,0,16);
            g.endFill();
            g.lineStyle(2,0);
            g.moveTo(0,0);
            g.lineTo(16,0);
            addChild(ps);
            ps.x = 150;
            ps.y = 100;
            
            stage.addEventListener(Event.ENTER_FRAME, onEnter);
            stage.addEventListener(KeyboardEvent.KEY_DOWN, kdown);
            stage.addEventListener(KeyboardEvent.KEY_UP, kup);
        }//ctor
        
        public var vecKey:Vector.<Boolean> = new Vector.<Boolean>(512,false);
        public function kdown(e:KeyboardEvent):void
        { vecKey[e.keyCode] = true;}
        public function kup(e:KeyboardEvent):void
        { vecKey[e.keyCode] = false;}
        
        public var vx:Number = 0;
        public var vy:Number = 0;
        
        public var a:Number = 0;
        
        public function onEnter(e:Event):void
        {
            
            vy += 0.18;
            
            if (vecKey[ Keyboard.LEFT])
            { 
            vx -= Math.cos(a);
            vy -= Math.sin(a);
             }
            if (vecKey[ Keyboard.RIGHT] )
            { 
            vx += Math.cos(a);
            vy += Math.sin(a);
            
             }
            if (vecKey[ Keyboard.UP])
            { vy -= 0.3; }
            if (vecKey[ Keyboard.DOWN] )
            { vy += 0.3; }
            
            
            if (vy > 0 && bg.hitTestPoint(ps.x,ps.y+16,true))
            { vy =0; }
            if (vx > 0 && bg.hitTestPoint(ps.x+16,ps.y,true))
            { vx =0;}
            if (vx < 0 && bg.hitTestPoint(ps.x-16,ps.y,true))
            {vx =0;}
            
            a = 0;
            if ( bg.hitTestPoint(ps.x+16,ps.y+12,true))
            { a = -0.3;}
            if (vecKey[Keyboard.RIGHT] && bg.hitTestPoint(ps.x+17,ps.y,true))
            { a = -1.57;}
            else if ( vecKey[Keyboard.LEFT] && bg.hitTestPoint(ps.x-17,ps.y,true))
            { a = 1.57;}
             
            ps.rotation = a * (180/3.1415);
            
            vx *= 0.99;
            vy *= 0.99;
            
            ps.x += vx;
            ps.y += vy; 
            
        }//onenter
        
    }//classend
}