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No:16801

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Block Breaker
Developer User7500｜Date and time 23/9/21 5:31:43
Build time 45.268 sec｜Game capacity 5.319KB｜

Script

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[PR]現在のフィギュア売れ筋ランキング

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

<!DOCTYPE html>
<html>
<head>
   <title>Block Breaker</title>
   <style>
     canvas {
       border: 1px solid black;
       background-color: #000;
     }
   </style>
</head>
<body>
   <script>
      // Initialize game variables
      const canvas = document.createElement("canvas");
      const ctx = canvas.getContext("2d");
      const ballRadius = 10;
      let ballX = canvas.width / 2;
      let ballY = 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 score = 0;
      let bricks = [];
      
      function initializeGame() {
         // Create 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 };
            }
         }
         
         // Add event listeners for controls
         document.addEventListener("keydown", keyDownHandler, false);
         document.addEventListener("keyup", keyUpHandler, false);
         
         // Start game loop
         setInterval(draw, 10);
      }
      
      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 collisionDetection() {
         for (let c = 0; c < brickColumnCount; c++) {
            for (let r = 0; r < brickRowCount; r++) {
               const brick = bricks[c][r];
               if (brick.status === 1) {
                  if (
                     ballX > brick.x &&
                     ballX < brick.x + brickWidth &&
                     ballY > brick.y &&
                     ballY < brick.y + brickHeight
                  ) {
                     dy = -dy;
                     brick.status = 0;
                     score++;
                     if (score === brickRowCount * brickColumnCount) {
                        alert("Congratulations! You won!");
                        document.location.reload();
                     }
                  }
               }
            }
         }
      }
      
      function drawBall() {
         ctx.beginPath();
         ctx.arc(ballX, ballY, 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 < brickColumnCount; c++) {
            for (let r = 0; r < brickRowCount; r++) {
               if (bricks[c][r].status === 1) {
                  const brickX = c * (brickWidth + brickPadding) + brickOffsetLeft;
                  const brickY = r * (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 draw() {
         ctx.clearRect(0, 0, canvas.width, canvas.height);
         drawBricks();
         drawBall();
         drawPaddle();
         drawScore();
         collisionDetection();
         
         if (ballX + dx > canvas.width - ballRadius || ballX + dx < ballRadius) {
            dx = -dx;
         }
         if (ballY + dy < ballRadius) {
            dy = -dy;
         } else if (ballY + dy > canvas.height - ballRadius) {
            if (ballX > paddleX && ballX < paddleX + paddleWidth) {
               dy = -dy;
            } else {
               alert("Game Over");
               document.location.reload();
            }
         }
         
         if (rightPressed && paddleX < canvas.width - paddleWidth) {
            paddleX += 7;
         } else if (leftPressed && paddleX > 0) {
            paddleX -= 7;
         }
         
         ballX += dx;
         ballY += dy;
      }
      
      function startGame() {
         canvas.width = 480;
         canvas.height = 320;
         document.body.appendChild(canvas);
         initializeGame();
      }
      
      // Start the game
      startGame();
   </script>
</body>
</html>