AI game creator

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No:3353

5060

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momantai
Developer anonymous｜Date and time 70/1/1 10:24:13
Build time unknown sec｜Game capacity 5.053KB｜

Script

スコア: 0

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

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>ゲームアプリ</title>
    <style>
      #canvas {
        border: 1px solid black;
      }
    </style>
  </head>
  <body>
    <canvas id="canvas" width="300" height="500"></canvas>
    <p>スコア: <span id="score">0</span></p>
    <script>
      let canvas = document.getElementById("canvas");
      let context = canvas.getContext("2d");
      let score = 0;
      let ballX = canvas.width / 2;
      let ballY = canvas.height - 30;
      let ballRadius = 10;
      let ballSpeedX = Math.floor(Math.random() * 8) - 4;
      let ballSpeedY = -5;
      let paddleWidth = 75;
      let paddleHeight = 10;
      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 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 };
        }
      }
      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;
        } else if (e.keyCode == 37) {
          leftPressed = false;
        }
      }
      function mouseMoveHandler(e) {
        let relativeX = e.clientX - canvas.offsetLeft;
        if (relativeX > 0 && relativeX < canvas.width) {
          paddleX = relativeX - paddleWidth / 2;
        }
      }
      function drawBall() {
        context.beginPath();
        context.arc(ballX, ballY, ballRadius, 0, Math.PI*2);
        context.fillStyle = "#0095DD";
        context.fill();
        context.closePath();
      }
      function drawPaddle() {
        context.beginPath();
        context.rect(paddleX, canvas.height - paddleHeight,
                     paddleWidth, paddleHeight);
        context.fillStyle = "#0095DD";
        context.fill();
        context.closePath();
      }
      function drawBricks() {
        for (let c = 0; c < brickColumnCount; c++) {
          for (let r = 0; r < brickRowCount; r++) {
            if (bricks[c][r].status == 1) {
              let brickX = (c * (brickWidth + brickPadding)) + brickOffsetLeft;
              let brickY = (r * (brickHeight + brickPadding)) + brickOffsetTop;
              bricks[c][r].x = brickX;
              bricks[c][r].y = brickY;
              context.beginPath();
              context.rect(brickX, brickY, brickWidth, brickHeight);
              context.fillStyle = "#0095DD";
              context.fill();
              context.closePath();
            }
          }
        }
      }
      function drawScore() {
        context.font = "16px Arial";
        context.fillStyle = "#0095DD";
        context.fillText("Score: " + score, 8, 20);
      }
      function collisionDetection() {
        for (let c = 0; c < brickColumnCount; c++) {
          for (let r = 0; r < brickRowCount; r++) {
            let b = bricks[c][r];
            if (b.status == 1) {
              if (ballX > b.x && ballX < b.x + brickWidth &&
                  ballY > b.y && ballY < b.y + brickHeight) {
                ballSpeedY = -ballSpeedY;
                b.status = 0;
                score++;
                if (score == brickRowCount * brickColumnCount) {
                  alert("YOU WIN!");
                  document.location.reload();
                }
              }
            }
          }
        }
      }
      function draw() {
        context.clearRect(0, 0, canvas.width, canvas.height);
        drawBricks();
        drawBall();
        drawPaddle();
        drawScore();
        collisionDetection();
        if (ballX + ballSpeedX > canvas.width - ballRadius ||
            ballX + ballSpeedX < ballRadius) {
          ballSpeedX = -ballSpeedX;
        }
        if (ballY + ballSpeedY < ballRadius) {
          ballSpeedY = -ballSpeedY;
        } else if (ballY + ballSpeedY > canvas.height - ballRadius - paddleHeight) {
          if (ballX > paddleX && ballX < paddleX + paddleWidth) {
            ballSpeedY = -ballSpeedY;
          } else {
            alert("GAME OVER");
            document.location.reload();
          }
        }
        if (rightPressed && paddleX < canvas.width - paddleWidth) {
          paddleX += 7;
        } else if (leftPressed && paddleX > 0) {
          paddleX -= 7;
        }
        ballX += ballSpeedX;
        ballY += ballSpeedY;
        requestAnimationFrame(draw);
      }
      draw();
    </script>
  </body>
</html>