package
{
    
    import flash.display.Sprite;
    import flash.display.DisplayObject;
    import flash.display.Graphics;
    import flash.events.TimerEvent;
    import flash.events.Event;
    import flash.events.KeyboardEvent;
    import flash.utils.Timer;
    import flash.text.TextField;
    
    [SWF(width = '500', height = '550')]
    
    public class RaceCarBasics extends Sprite 
    {
        
        [Embed(source="carstart.png")]
        private var TheCar:Class;
        
        private var carPicture:DisplayObject = new TheCar();
        
        [Embed(source="grass1.jpg")]
        private var GrassOnePicture:Class;
        
        [Embed(source="grass2.jpg")]
        private var GrassTwoPicture:Class;
        
        [Embed(source="grass3.jpg")]
        private var GrassThreePicture:Class;
        
        [Embed(source="street.jpg")]
        private var TheStreet:Class;
        
        private var roadway:DisplayObject = new TheStreet();
        
        private var grassOneA:DisplayObject = new GrassOnePicture();
        private var grassOneB:DisplayObject = new GrassOnePicture();
        private var grassTwoA:DisplayObject = new GrassTwoPicture();
        private var grassTwoB:DisplayObject = new GrassTwoPicture();
        private var grassThreeA:DisplayObject = new GrassThreePicture();
        private var grassThreeB:DisplayObject = new GrassThreePicture();
        
        
        
        private var bounds:Sprite = new Sprite();
        private var roadLines:Sprite = new Sprite();
        private var roadLinesMirror:Sprite = new Sprite();
        private var carSpeed:Number = 5;
        private var theRoad:Sprite = new Sprite();
        private var slowDown:Timer = new Timer(500, 15);
        private var speedUp:Timer = new Timer(500, 15);
        private var stillDriving:Boolean = false;
        private var yourCar:Sprite = new Sprite();
        private var MPHField:TextField = new TextField();
        private var grassDelay:Number = 500;
        private var grassMove:Timer;
        
        public function RaceCarBasics()
        {
            
            grassMove = new Timer(grassDelay, 0);
            
            theRoad.graphics.lineStyle(2, 0x000000);
            theRoad.graphics.drawRect(0, 0, 500/2, 550+10);
            theRoad.x = 500/2 - theRoad.width/2;theRoad.y = -2;
            this.addChild(theRoad);
            
            roadway.x = theRoad.x;
            this.addChild(roadway);
            
            grassOneA.x = theRoad.x - grassOneA.width;
            grassTwoA.x = grassOneA.x;
            grassThreeA.x = grassTwoA.x;
            this.addChild(grassThreeA);
            this.addChild(grassTwoA);
            this.addChild(grassOneA);
            grassOneB.x = theRoad.x + theRoad.width;
            grassTwoB.x = grassOneB.x;
            grassThreeB.x = grassTwoB.x;
            this.addChild(grassThreeB);
            this.addChild(grassTwoB);
            this.addChild(grassOneB);
            
            roadLinesMirror.graphics.lineStyle(1, 0x000000);
            roadLinesMirror.graphics.beginFill(0xFFFFFF);
            
            roadLines.graphics.lineStyle(1, 0x000000);
            roadLines.graphics.beginFill(0xFFFFFF);
            
            
            for (var i:int = 0; i<550; i += 25)
            {roadLines.graphics.drawRect(0, i, 5, 15);
            roadLinesMirror.graphics.drawRect(0, i, 5, 15);}
            
            roadLines.x = 500/2 - roadLines.width/2;roadLines.y = 0;
            this.addChild(roadLines);
            
            roadLinesMirror.x = 500/2 - roadLinesMirror.width/2;
            roadLinesMirror.y = 0-roadLinesMirror.height-10;
            this.addChild(roadLinesMirror);
            
            yourCar.addChild(carPicture);
            yourCar.x = 500/2 - yourCar.width/2+42;
            yourCar.y = 550-115;
            this.addChild(yourCar);
            
            MPHField.text = "MPH: ";
            MPHField.y = 35;
            MPHField.x = theRoad.x + 25;
            this.addChild(MPHField);
            
            stage.addEventListener(KeyboardEvent.KEY_DOWN, keyPresses);
            stage.addEventListener(KeyboardEvent.KEY_UP, keyReleases);
            slowDown.addEventListener(TimerEvent.TIMER, slowIt);
            speedUp.addEventListener(TimerEvent.TIMER, speedIt);
            stage.addEventListener(Event.ENTER_FRAME, movementGovern);
            
            grassMove.addEventListener(TimerEvent.TIMER, theGrassMovement);
        }
        
        
        private function theGrassMovement(event:TimerEvent):void 
        {
            
            swapChildren(grassOneA, grassTwoA);swapChildren(grassOneB, grassTwoB);
            swapChildren(grassTwoA, grassThreeA);swapChildren(grassTwoB, grassThreeB);
            
            
        }
        
        private function slowIt(event:TimerEvent):void 
        {
            
            if (carSpeed >= 6)
            {carSpeed -= 1;}
            
        }
        
        
        private function speedIt(event:TimerEvent):void 
        {
            
            if (carSpeed <= 15)
            {carSpeed += 1;}
            
        }
        
        
        private function movementGovern(event:Event):void 
        {
            
            grassDelay = Number(300 - Math.floor(carSpeed*20));
            if (stillDriving == true)
            {roadLines.y += carSpeed;roadLinesMirror.y += carSpeed;grassMove.start();}
            else
            {
                if (slowDown.running!=false)
                {roadLines.y += carSpeed;roadLinesMirror.y += carSpeed;}
                else 
                {grassMove.stop();}
            }
            
            if (roadLines.y > 550)
            {roadLines.y = 0;roadLinesMirror.y = 0-roadLinesMirror.height-10;}
            
            var themph:String = carSpeed-5 +"0";
            MPHField.text = "MPH: "+themph;
            
        }
        
        
        
        private function keyReleases(event:KeyboardEvent):void 
        {
            
            if (event.keyCode == 38)
            {
                stillDriving = false;
                if (speedUp.running == true)
                {speedUp.stop();speedUp.reset();}
                if (slowDown.running == false)
                {slowDown.reset();slowDown.start();}
                else 
                {slowDown.stop();slowDown.reset();slowDown.start();}
            }
            
        }
        
        
        
        private function keyPresses(event:KeyboardEvent):void 
        {
            
            var thekey:String = "" + event.keyCode + "";
            if (thekey == "38" || thekey == "37" || thekey == "39")
            {
                
                if (thekey == "38") {
                    if (slowDown.running == true)
                    {slowDown.stop();slowDown.reset();}
                    stillDriving = true;
                    if (speedUp.running == false)
                    {speedUp.reset();speedUp.start();}
                }
                
                if (thekey == "37")
                {yourCar.x -= 10;}
                
                if (thekey == "39")
                {yourCar.x += 10;}
                
            }
            
            
            if (thekey == "40")
            {roadLines.y -= carSpeed;roadLinesMirror.y -= carSpeed;stillDriving = false;}
            
            if (thekey == "40" && roadLines.y < 0)
            {roadLines.y = 550;roadLinesMirror.y = 550-roadLinesMirror.height-10;}
            
            
        }
        
        
        
        
        
        
    }
    
}