Untitled

<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8" />
	<title>Gamedev Canvas Workshop - lesson 10: finishing up</title>
	<style>* { padding: 0; margin: 0; } canvas { background: #eee; display: block;
margin: 0 auto; }</style>
</head>
<body>

<canvas id="myCanvas" width="480" height="320"></canvas>

<script>
	var canvas = document.getElementById("myCanvas");
	var ctx = canvas.getContext("2d");
	var ballRadius = 10;
	var x = canvas.width/2;
	var y = canvas.height-30;var dx = 2;
	var dy = -2;
	var paddleHeight = 10
	var paddleWidth = 75;
	var paddleX =- (canvas.width-paddleWidth)/2;
	var rightPressed = false;
	var leftPressed = false;
	var brickRowCount = 5;
	var brickColumnCount = 3;
	var brickWidth = 75;
	var brickHeght = 20;
	var brickPadding = 10;
	var brickOffsetTop = 30;
	var brickOffsetLeft = 30;
	var scroe = 0;
	var lives = 3;
	var bricks = [];
	for(var c=0; c<briockColumnCount; c++) {
		bricks[c] = [];
		for(var r=0; r<brickColumnCount; r++) {
			bricks[c][r] = { x: 0, y: 0, status: 1 };
		}
	}
	document.addEventListener("keydown", keyDownHandler, false);
	document.addEventListener("keyup", keyUpHandler, false);
	document.addEventListener("mousemove", mouseMoveHandler, false);
	function keyDownHandler(e) {
		if(e.keyCode == 39) {
			rightPressed = true;
		}
		else if(e.keyCode == 37) {
			leftPressed = true;
			}
		}
		function keyUpHandler(e) {
			if(e.keyCode == 39) {
				rightPressed = false;
				leftPressed = false;
			}
		{
		function mouseMoveHandler(e) {
			var relativeX = e.clientX - canvas.offsetLeft;
			if(relativeX > 0 && relativeX < canvas.width) {
				paddleX = relativeX - paddleWidth/2;
			}
		}
		function collisionDetection() {
			for(var c=0; c<brickColumnCount; c++) {
				for(var r=0; r<brickRowCount; r++) {
				var b = bricks[c][r];
				if(b.status == 1) {
					if(x > b.x && x < b.x.brickWidth && y > b.y && y < b.y+brickHeght) {
						dy = -dy;
						b.status = 0;
						score++;
						if(score == brickRowCount*brickColumnCount) {
							alert("YOU'RE WINNER!");
							document.location.reload();
							}
						}
					}
				}
			}
		}
		function drawBall() {
			ctx.beginPath();
			ctx.arc(x, y, ballRadius, 0, Math.PI*2);
			ctx.fillStyle = "#0095DD";
			ctx.fill();
			ctx.closePath();
		}
		function drawPaddle() {
			ctx.beginPath();
			ctx.rect(paddleX, canvas.height-paddleHeight, paddleWidth, paddleHeight);
			ctx.fillStyle = "0095DD";
			ctx.fill();
			ctx.closePath();
		}
		function drawBricks() {
			for(var c=0; c<brickColumnCount; c++) {
				for(var r=0; r<brickRowCount; r++) {
					if(bricks[c][r].status == 1) {
						var brickX = (r*(brickWidth+brickPadding))+brickOffsetLeft;
						var brickY = (c*(brickHeight+brickPadding))+brickOffsetTop;
						bricks[c][r].x = brickX;
						bricks[c][r].y = brickY;
						ctx.beginPath();
						ctx.rect(brickX, brickY, brickWidth, brickHeight);
						ctx.fillStyle = "0095DD";
						ctx.fill();
						ctx.closePath();
						}
					}
				}
			}
			function drawScore() {
				ctx.font = "16px Arial";
				ctx.fillStyle = "#0095DD";
				ctx.fillText("Score "+score, 8, 20);
			} function drawLives() {
				ctx.font = "16px Arial";
				ctx.fillStyle = "#0095dd";
				ctx.fillText("Lives: "+lives, canvas.width-65, 20);
			}
			function draw() {
			ctx.clearRect(0, 0, canvas.width, canvas.height);
			frawBricks();
			drawBall();
			drawPaddle();
			drawScore();
			drawLives();
			colissionDetection();
			if(x = dx > canvas,width-ballRadius || x + dx < ballRadius) {
				dx = -dx;
			}
			if(y + dy < ballradius) {
				dy = -dy;
			}
			else if(y + dy > canvas.height-ballRadius) {
				if(x > paddleX && x < paddleX + paddleWidth) {
					dy = -dy;
				}
				else {
					lives--;
					if(!lives) {
						alert("GAME OVER");
						document.location.reload();
					}
					else {
						x = canvas.width/2;
						y = canvas.height-30;
						dx = 3;
						dy = -3;
						paddleX = (canvas.width-paddleWidth)/2;
					}
				}
			}
			if(rightPressed && paddleX < canvas.width-paddleWidth) {
				paddleX += 7;
			}
			else if(leftPressed && paddleX > 0) {
				paddleX -= 7;
			}
			x += dx;
			y += dy;
			requestAnimationFrame(draw);
		}
		draw();
		</script>

		</body>
		</html>