!function () {
	var colors = ['red', 'blue', 'green', 'yellow'];
	var counter = 1;
    var score = 0;
	var clicks = 0;
	var simonSounds = [];
	var gameSequence = ["freespace"], userSequence = ["freespace"];
	var userCanPlay = false;
	var sequenceTimer;
	var url = 'http://marcusparsons.com/projects/simoncubed/sounds/';
	simonSounds[0] = new Audio(url + 'mjSound1.mp3');
	simonSounds[1] = new Audio(url + 'mjSound2.mp3');
	simonSounds[2] = new Audio(url + 'mjSound3.mp3');
	simonSounds[3] = new Audio(url + 'mjSound4.mp3');
	var gameOver = new Audio(url + 'gameOver.mp3');
    gameOver.volume = 0.2;

	function startGame () {
		userCanPlay = true;
		var rand = Math.floor(Math.random() * 4);
		var color = colors[rand];
		gameSequence.push(color);
		var obj = $('#game' + color);
		$('#counter').val("0" + counter);
		$('.gameButton').addClass('active');
		obj.css('opacity', 1);
		simonSounds[rand].play();
		setTimeout(function () {
			changeOpacity(obj);
		}, 750);
		return 0;
	}

	function changeOpacity (obj) {
		obj.css('opacity', 0.4);
		return 0;
	}
	
	function findIndex (thisColor) {
		for (var i = 0; i < colors.length; i++) {
			if (thisColor === colors[i]) {
				return i;
			}
		}
		return -1;
	} 
	
	function checkUserResponses () {
		var sequential = true;
		for (var i = gameSequence.length; i > 0; i--) {
			if (userSequence[i] !== gameSequence[i]) {
				sequential = false;
				i = 0;
			}
		}
		if (!sequential) {
			$('#counter').val('!!');
			gameSequence = ["freespace"];
			userSequence = ["freespace"];
            score = counter;
			counter = 1;
			dOpacity = 1;
			userCanPlay = false;
			$('.gameButton').removeClass('active');
			setTimeout(function () {
				gameOver.play();
			}, 1000);
			setTimeout(function () {
				$('#playButton').css('display', 'block');
				$('#gameOverlay').css('height', '22.5em');
				$('#counter').val('--');
                //$('#shareFBScore').html('You made it to level ' + score + '! Click/tap here to share your score on <b>Facebook!</b>').css('display','block');
                $('#footer').css('position', 'static');
			}, 3000);

		}
		else {
			var rand = Math.floor(Math.random() * 4);
			var color = colors[rand];
			userSequence = ["freespace"];
			gameSequence.push(color);
			counter++;
			$('#counter').val((counter < 10) ? "0" + counter : counter);
			var i = 1;
			sequenceTimer = setInterval(function () {
				if (i < gameSequence.length) {
					var obj = $('#game' + gameSequence[i]);
					obj.css('opacity', 1);
					var index = findIndex(gameSequence[i]);
					simonSounds[index].play();
					setTimeout(function () {
						changeOpacity(obj);
					}, 900);
					i++;
				}
				else {
					clearInterval(sequenceTimer);
				}
			}, 1500);
		}
		return 0;
	}
	
	$('#playButton').click(function () {
        $('#shareFBScore').css('display','none');
		$('#playButton').css('display', 'none');
		$('#gameOverlay').css('height', '15em');
        if (screen.availWidth > 776) {
            $('#footer').css({
                'position' : 'fixed',
                'bottom' : 0,
                'left' : 0,
                'right' : 0
            });
        }
        else {
            $('#footer').css({
                'position' : 'static',
                'margin-top' : '40px'
            });
        }
		setTimeout(startGame, 1000);
	});
	
	$('.gameButton').click(function () {
		if (userCanPlay) {
			clicks++;
			var objID = $(this).attr('id');
			var obj = $('#' + objID).css('opacity', 1);
			setTimeout(function () {
				changeOpacity(obj) 
			}, 750);
			var thisColor = objID.substring(4, objID.length);
			var i = findIndex(thisColor);
			simonSounds[i].play();
			userSequence.push(thisColor);
			if (clicks === counter) {
				clicks = 0;
				checkUserResponses();
			}
		}
	});
    
    $('#shareFBScore').click(function () {
        window.open('https://www.facebook.com/dialog/feed?app_id=463962300461289&display=popup&description=Test%20your%20memory%20and%20see%20if%20you%20can%20beat%20this%20score%20in%20this%20cubed%20rendition%20of%20the%20classic%20game%20of%20Simon!&name=I%20made%20it%20to%20level%20' + score + '%20on%20Simon%20Cubed!&caption=Simon%20Cubed&link=http%3A%2F%2Fwww.marcusparsons.com%2Fprojects%2Fsimoncubed%2Findex.html&redirect_uri=http://www.marcusparsons.com/projects/simoncubed/index.html&picture=http://www.marcusparsons.com/projects/simoncubed/simoncubedlogo_fbsharer.png');
    });
}();