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No:49950

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Block Breaker
Developer User21182｜Date and time 24/3/7 1:48:14
Build time 17 sec｜Game capacity 3.431KB｜

Script

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Click here for free DL of the app version that can save data.

<!DOCTYPE html>
<html>
<head>
<title>Block Breaker</title>
<style>
canvas {
  display: block;
  margin: 0 auto;
  background: #f0f0f0;
}
</style>
</head>
<body>
<canvas id="gameCanvas" width="480" height="320"></canvas>
<script>
const canvas = document.getElementById("gameCanvas");
const ctx = canvas.getContext("2d");

const ballRadius = 10;
let x = canvas.width / 2;
let y = canvas.height - 30;
let dx = 2;
let dy = -2;

const paddleHeight = 10;
const paddleWidth = 75;
let paddleX = (canvas.width - paddleWidth) / 2;

let rightPressed = false;
let leftPressed = false;

const brickRowCount = 3;
const brickColumnCount = 5;
const brickWidth = 75;
const brickHeight = 20;
const brickPadding = 10;
const brickOffsetTop = 30;
const brickOffsetLeft = 30;

let bricks = [];
for(let c = 0; c < brickColumnCount; c++) {
  bricks[c] = [];
  for(let r = 0; r < brickRowCount; r++) {
    bricks[c][r] = { x: 0, y: 0, status: 1 };
  }
}

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 draw() {
  ctx.clearRect(0, 0, canvas.width, canvas.height);
  drawBricks();
  drawBall();
  drawPaddle();
  collisionDetection();

if(y + dy < ballRadius) {
    dy = -dy;
  } else if(y + dy > canvas.height - ballRadius) {
    if(x > paddleX && x < paddleX + paddleWidth) {
      dy = -dy;
    } else {
      alert("Game Over");
      document.location.reload();
      clearInterval(interval);
    }
  }

if(x + dx < ballRadius || x + dx > canvas.width - ballRadius) {
    dx = -dx;
  }

x += dx;
  y += dy;

if(rightPressed && paddleX < canvas.width - paddleWidth) {
    paddleX += 7;
  } else if(leftPressed && paddleX > 0) {
    paddleX -= 7;
  }
}

document.addEventListener("keydown", keyDownHandler, false);
document.addEventListener("keyup", keyUpHandler, 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;
  }
}

const interval = setInterval(draw, 10);

</script>
</body>
</html>