(function(window)
{
	function GameController(stage, spaceship, aliens, scoreBoard, keyController)
	{
		this.stage			= stage;
		this.spaceship		= spaceship;
		this.aliens			= aliens;
		this.scoreBoard		= scoreBoard;
		this.keyController	= keyController;
		this.initialize();		
	}
	GameController.prototype.bullits		= [];	// Array to hold all bullits fired
	GameController.prototype.score			= 0;	// The actual game score
	GameController.prototype.scoreModifiers	= {spaceshipShooting: 0, spaceshipShot: 0, alienKilled: 0, aliensReachedBottom: 0, levelCompleted: 0, asTimeGoesBy: 0 };
	// Views/Controller
	GameController.prototype.stage			= null;
	GameController.prototype.spaceship		= null;
	GameController.prototype.aliens			= null;
	GameController.prototype.scoreBoard		= null;
	GameController.prototype.keyController	= null;
	// Signals
	GameController.prototype.completed		= new signals.Signal();
	/**
	* GAME CONTROL METHODS
	*/
	GameController.prototype.initialize = function()
	{
		// Set FPS monitor
		fpsMonitor		= new Text('0 FPS','bold 10px OCRAStd','#000');
		fpsMonitor.x	= 654;
		fpsMonitor.y	= 55;
		this.stage.addChild(fpsMonitor);
		// The ideal solution would be to have the Ticker start in the startGame() method. But somehow, all texts aren't drawn to stage unless we make alot of ticks?!
		// Therefore, we start the Ticker and have a "enabled property" in Aliens that keeps them from moving until true... :/
		Ticker.addListener(this);
		Ticker.setFPS(30);
	}
	GameController.prototype.enable	= function()
	{
		// Listen for Signals
		var _this	= this;
		this.spaceship.shotFired.add(function(){_this.onSpaceshipShooting();});
		this.spaceship.hit.addOnce(function(bullit){_this.onSpaceshipHit(bullit);});
		this.aliens.shotFired.add(function(point){_this.onAlienShooting(point);});
		this.aliens.alienKilled.add(function(point,color,bullit){_this.onAlienKilled(point,color,bullit);});
		this.aliens.allKilled.addOnce(function(){_this.onAllAliensKilled();});
		this.aliens.reachedBottom.addOnce(function(){_this.onAliensReachedBottom();});
	}
	GameController.prototype.startGame = function()
	{
		this.keyController.enable();
		this.scoreModifiers.asTimeGoesBy	= -1;
		this.aliens.enable();
	}
	GameController.prototype.stopGame = function()
	{
		this.completed.dispatch(this.score);
		//Ticker.removeAllListeners();
	}
	GameController.prototype.restart = function()
	{
		this.spaceship.reset();
		this.aliens.reset();
		this.resetScore();
		this.enable();
		this.startGame();
	}
	GameController.prototype.resetScore = function()
	{
		this.score	= 0;
		this.scoreModifiers.spaceshipShooting	= -10;
		this.scoreModifiers.spaceshipShot		= -2000;
		this.scoreModifiers.alienKilled			= 1500;
		this.scoreModifiers.aliensReachedBottom	= -1000;
		this.scoreModifiers.levelCompleted		= 10000;
		this.scoreModifiers.asTimeGoesBy		= 0;
	}
	/**
	* RENDERING METHODS
	*/
	GameController.prototype.tick = function()
	{
		this.updateSpaceship();
		this.updateAliens();
		this.updateBullits();
		this.score	+= this.scoreModifiers.asTimeGoesBy;
		this.updateScore();
		fpsMonitor.text = Math.round(Ticker.getMeasuredFPS()) + ' FPS';
		this.stage.update();
	}
	GameController.prototype.onKeyControllerStarted = function()
	{
		Ticker.addListener(stage);
		Ticker.setFPS(30);
	}
	GameController.prototype.updateScore = function()
	{
		this.scoreBoard.update(this.score);
	}
	GameController.prototype.gameOver = function()
	{
		this.scoreModifiers.asTimeGoesBy	= 0;
		this.keyController.disable();
		this.spaceship.disable();
		this.aliens.disable();
		var _this	= this;
		var timer	= new Timer(2000,1); // Give some time for the final animations
		timer.TIMER.addOnce(function(){_this.stopGame();});
		timer.start();
	}
	/**
	* SPACESHIP METHODS
	*/
	GameController.prototype.updateSpaceship = function()
	{
		// Shooting
		if(KeyController.shootKeyDown === true) this.spaceship.shoot();
		// Movement
		if(KeyController.leftKeyDown === true) this.spaceship.moveLeft();
		else if(KeyController.rightKeyDown === true) this.spaceship.moveRight();
		else this.spaceship.slowDownAndBreak();
	}
	GameController.prototype.onSpaceshipShooting = function()
	{
		this.score	+= this.scoreModifiers.spaceshipShooting;
		this.stage.addChildAt(this.getBullit(new Point(this.spaceship.x+this.spaceship.bullit.x, this.spaceship.y+this.spaceship.bullit.y+6), -1, 10, this.spaceship.bullitColor), 0);
	}
	GameController.prototype.onSpaceshipHit = function(bullit)
	{
		this.score	+= this.scoreModifiers.spaceshipShot;
		this.destroyBullit(bullit);
		this.destroySpaceship();
		this.gameOver();
	}
	GameController.prototype.destroySpaceship = function()
	{
		this.createExplosion(new Point(this.spaceship.x + this.spaceship.width/2, this.spaceship.y), this.spaceship.shipColor);
		this.spaceship.visible	= false;
	}
	/**
	* ALIENS METHODS
	*/
	GameController.prototype.updateAliens = function()
	{
		this.aliens.update();
	}
	GameController.prototype.onAlienShooting = function(point)
	{
		this.stage.addChildAt(this.getBullit(point, 1, 5), 0);
	}
	GameController.prototype.onAlienKilled = function(point, color, bullit)
	{
		this.score	+= this.scoreModifiers.alienKilled;
		this.destroyBullit(bullit);
		this.createExplosion(point, color);
	}
	GameController.prototype.onAllAliensKilled = function()
	{
		this.score	+= this.scoreModifiers.levelCompleted;
		this.gameOver();
	}
	GameController.prototype.onAliensReachedBottom = function()
	{
		this.score	+= this.scoreModifiers.aliensReachedBottom;
		this.destroySpaceship();
		this.gameOver();
	}
	/**
	* BULLIT METHODS
	*/
	GameController.prototype.getBullit = function(point, vY, speed, color)
	{
		var bullit		= new Bullit(color);
		bullit.x		= point.x;
		bullit.y		= point.y;
		bullit.vY		= vY;
		bullit.speed	= speed;
		this.bullits.push(bullit);
		return bullit;
	}
	GameController.prototype.updateBullits = function()
	{
		var _this	= this;
		var _total	= this.bullits.length;
		if(_total > 0)
		{
			for(var i=0; i<_total; ++i)
			{
				var bullit	= this.bullits[i];
				if(bullit)
				{
					bullit.y += (bullit.vY * bullit.speed);
					if(bullit.y < -bullit.radius + 50 || bullit.y > Registry.get('STAGE_HEIGHT'))
					{
						this.destroyBullit(bullit);
						this.createExplosion(new Point(bullit.x, bullit.y), bullit.color);
					}
					else
					{
						if(bullit.vY < 0) this.aliens.checkForHit(bullit);
						if(bullit.vY > 0) this.spaceship.checkForHit(bullit);	
					}
				}
			}
		}
	}
	GameController.prototype.destroyBullit = function(bullit)
	{
		if(this.bullits.indexOf(bullit) >= 0) this.bullits.splice(this.bullits.indexOf(bullit), 1);
		this.stage.removeChild(bullit);
	}
	/**
	* EXPLOSION METHODS
	*/
	GameController.prototype.createExplosion = function(point, color)
	{
		var explosion	= new ParticleExplosion(color);
		explosion.x		= point.x;
		explosion.y		= point.y;
		explosion.completed.addOnce(this.onExplosionCompleted);
		this.stage.addChildAt(explosion, 0);
	}
	GameController.prototype.onExplosionCompleted = function(explosion)
	{
		this.stage.removeChild(explosion);
		explosion	= null;
	}
	window.GameController = GameController;
}(window));