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Snake Game
Developer User12303｜Date and time 23/11/19 7:36:30
Build time 103.565 sec｜Game capacity 3.695KB｜

Script

Sure! Here's an example of a simple Snake game implemented as a single HTML file using JavaScript:

To play the game, simply open the HTML file in a web browser and control the snake using arrow keys. The goal is to eat the red food and avoid colliding with the walls or the snake itself.

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[PR]現在の売れ筋アプリランキング

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

Sure! Here's an example of a simple Snake game implemented as a single HTML file using JavaScript:

```html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Snake Game</title>
  <style>
    canvas {
      border: 1px solid #000;
      display: block;
      margin: 0 auto;
    }
  </style>
</head>
<body>
  <canvas id="gameCanvas"></canvas>

// Set up the canvas
    const canvas = document.getElementById('gameCanvas');
    const context = canvas.getContext('2d');

// Define game constants
    const tileSize = 20;
    const canvasSize = 20;
    const initialSnake = [
      { x: 10, y: 10 },
      { x: 9, y: 10 },
      { x: 8, y: 10 }
    ];
    let direction = 'right';
    let snake = [...initialSnake];
    let food = generateFoodPosition();

// Game loop
    function gameLoop() {
      moveSnake();
      if (isCollision()) {
        alert('Game Over!');
        resetGame();
      }
      if (isEating()) {
        snake.push({ ...snake[snake.length - 1] });
        food = generateFoodPosition();
      }
      drawGame();
    }

// Move the snake
    function moveSnake() {
      const head = { ...snake[0] };
      switch (direction) {
        case 'up':
          head.y--;
          break;
        case 'down':
          head.y++;
          break;
        case 'left':
          head.x--;
          break;
        case 'right':
          head.x++;
          break;
      }
      snake.unshift(head);
      snake.pop();
    }

// Check for collision
    function isCollision() {
      const head = snake[0];
      return (
        head.x < 0 ||
        head.y < 0 ||
        head.x >= canvasSize ||
        head.y >= canvasSize ||
        snake.slice(1).some(segment => segment.x === head.x && segment.y === head.y)
      );
    }

// Check if snake is eating food
    function isEating() {
      const head = snake[0];
      return head.x === food.x && head.y === food.y;
    }

// Generate random food position
    function generateFoodPosition() {
      return {
        x: Math.floor(Math.random() * canvasSize),
        y: Math.floor(Math.random() * canvasSize)
      };
    }

// Reset the game
    function resetGame() {
      snake = [...initialSnake];
      direction = 'right';
    }

// Handle key press events
    document.addEventListener('keydown', handleKeyPress);

function handleKeyPress(event) {
      switch (event.key) {
        case 'ArrowUp':
          if (direction !== 'down') direction = 'up';
          break;
        case 'ArrowDown':
          if (direction !== 'up') direction = 'down';
          break;
        case 'ArrowLeft':
          if (direction !== 'right') direction = 'left';
          break;
        case 'ArrowRight':
          if (direction !== 'left') direction = 'right';
          break;
      }
    }

// Draw the game
    function drawGame() {
      // Clear the canvas
      context.clearRect(0, 0, canvas.width, canvas.height);

// Draw the food
      context.fillStyle = 'red';
      context.fillRect(food.x * tileSize, food.y * tileSize, tileSize, tileSize);

// Draw the snake
      context.fillStyle = 'green';
      snake.forEach(segment => {
        context.fillRect(segment.x * tileSize, segment.y * tileSize, tileSize, tileSize);
      });
    }

// Start the game
    setInterval(gameLoop, 100);

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

To play the game, simply open the HTML file in a web browser and control the snake using arrow keys. The goal is to eat the red food and avoid colliding with the walls or the snake itself.