const canvas = document.getElementById('canvas'); const ctx = canvas.getContext('2d'); let x = canvas.width / 2; let y = canvas.height - 30; let dx = 2; let dy = -2; let ballRadius = 10; let paddleHeight = 10; let paddleWidth = 75; let paddleX = (canvas.width - paddleWidth) / 2; let rightPressed = false; let leftPressed = false; let brickRowCount = 3; let brickColumnCount = 5; let brickWidth = 75; let brickHeight = 20; let brickPadding = 10; let brickOffsetTop = 30; let brickOffsetLeft = 30; let score = 0; let lives = 3; let bricks = []; for(let c=0; c 0 && relativeX < canvas.width) { paddleX = relativeX - paddleWidth/2; } } function collisionDetection() { for(let c=0; c b.x && x < b.x+brickWidth && y > b.y && y < b.y+brickHeight) { dy = -dy; b.status = 0; score++; if(score == brickRowCount*brickColumnCount) { alert("YOU WIN, CONGRATS!"); 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(let c=0; c 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; } setInterval(draw, 10);

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a bouncing ball which needs to move through obstacles

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