3e:null 3f:["$","title",null,{"children":"Breakout Game | Martin Milan | Observable"}] 45:T12ec,{ var canvas = thisCanvas; var ctx = canvas.getContext("2d"); var animationFrameId; // Variable to store the animation frame ID 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 brickHeight = 20; var brickPadding = 10; var brickOffsetTop = 30; var brickOffsetLeft = 30; var score = 0; var lives = 3; var win = false; var gameover = false; var bricks = []; for (var c = 0; c < brickColumnCount; c++) { bricks[c] = []; for (var r = 0; r < brickRowCount; 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.key == "Right" || e.key == "ArrowRight") { rightPressed = true; } else if (e.key == "Left" || e.key == "ArrowLeft") { leftPressed = true; } } function keyUpHandler(e) { if (e.key == "Right" || e.key == "ArrowRight") { rightPressed = false; } else if (e.key == "Left" || e.key == "ArrowLeft") { 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 + brickHeight ) { dy = -dy; b.status = 0; score++; console.log("Score:", score); if (score == brickRowCount * brickColumnCount) { win = true; } } } } } } 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 gameOver() { ctx.font = "30px Arial"; ctx.fillStyle = "red"; ctx.fillText("GAME OVER!", canvas.width / 2 - 100, canvas.height / 2); } function winGame() { ctx.font = "30px Arial"; ctx.fillStyle = "red"; ctx.fillText("YOU WIN!", canvas.width / 2 - 80, canvas.height / 2); } function draw() { ctx.fillStyle = "#eee"; ctx.fillRect(0, 0, canvas.width, canvas.height); drawBricks(); drawBall(); drawPaddle(); drawScore(); drawLives(); collisionDetection(); if (gameover == true) { gameOver(); return; } if (win == true) { winGame(); return; } 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 { console.log("Player ran out of lives"); lives--; if (!lives) { gameover = true; } else { // Decrement lives before resetting ball position x = canvas.width / 2; y = canvas.height - 30; dx = 2; dy = -2; paddleX = (canvas.width - paddleWidth) / 2; } } } if (rightPressed && paddleX < canvas.width - paddleWidth) { paddleX += 7; } else if (leftPressed && paddleX > 0) { paddleX -= 7; 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