RedT4nK.github.io/snake.html at main · RedT4nk/RedT4nK.github.io · GitHub

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>经典贪吃蛇游戏</title>
    <style>
        body {
            display: flex;
            flex-direction: column;
            align-items: center;
            background-color: #f0f0f0;
            font-family: Arial, sans-serif;
        }

        #game-container {
            margin-top: 20px;
        }

        #game-board {
            border: 2px solid #333;
            background-color: #fff;
        }

        #score-panel {
            margin-top: 10px;
            font-size: 18px;
            display: flex;
            gap: 20px;
        }

        #controls {
            margin-top: 20px;
            display: flex;
            gap: 10px;
        }

        button {
            padding: 8px 16px;
            font-size: 16px;
            cursor: pointer;
            background-color: #4CAF50;
            color: white;
            border: none;
            border-radius: 4px;
        }

        button:hover {
            background-color: #45a049;
        }

        .game-over {
            position: absolute;
            background-color: rgba(0, 0, 0, 0.8);
            color: white;
            padding: 20px;
            text-align: center;
            border-radius: 10px;
            display: none;
        }
    </style>
</head>
<body>
    <h1>经典贪吃蛇游戏</h1>
    <div id="game-container">
        <canvas id="game-board" width="400" height="400"></canvas>
        <div id="score-panel">
            <div>当前得分: <span id="score">0</span></div>
            <div>最高得分: <span id="high-score">0</span></div>
        </div>
        <div id="controls">
            <button onclick="startGame()">开始游戏</button>
            <button onclick="goToIndex()" style="background-color: #2196F3;">返回主页</button>
        </div>
        <div id="game-over" class="game-over">
            <h2>游戏结束！</h2>
            <p>最终得分: <span id="final-score">0</span></p>
            <button onclick="startGame()">再玩一次</button>
        </div>
    </div>

    <script>
        const canvas = document.getElementById('game-board');
        const ctx = canvas.getContext('2d');
        const GRID_SIZE = 20;
        const GRID_COUNT = canvas.width / GRID_SIZE;

        let snake = [];
        let food = {};
        let direction = 'right';
        let nextDirection = 'right';
        let gameLoop;
        let score = 0;
        let highScore = localStorage.getItem('snakeHighScore') || 0;

        document.getElementById('high-score').textContent = highScore;

        function initGame() {
            snake = [
                { x: 5, y: 5 },
                { x: 4, y: 5 },
                { x: 3, y: 5 }
            ];
            direction = 'right';
            nextDirection = 'right';
            score = 0;
            document.getElementById('score').textContent = score;
            generateFood();
        }

        function generateFood() {
            while (true) {
                food = {
                    x: Math.floor(Math.random() * GRID_COUNT),
                    y: Math.floor(Math.random() * GRID_COUNT)
                };
                // 检查食物是否生成在蛇身上
                if (!snake.some(segment => segment.x === food.x && segment.y === food.y)) {
                    break;
                }
            }
        }

        function draw() {
            // 清空画布
            ctx.fillStyle = '#fff';
            ctx.fillRect(0, 0, canvas.width, canvas.height);

            // 绘制蛇
            snake.forEach((segment, index) => {
                ctx.fillStyle = index === 0 ? '#4CAF50' : '#8BC34A';
                ctx.fillRect(segment.x * GRID_SIZE, segment.y * GRID_SIZE, GRID_SIZE - 1, GRID_SIZE - 1);
            });

            // 绘制食物
            ctx.fillStyle = '#FF5722';
            ctx.fillRect(food.x * GRID_SIZE, food.y * GRID_SIZE, GRID_SIZE - 1, GRID_SIZE - 1);
        }

        function move() {
            direction = nextDirection;
            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;
            }

            // 碰撞检测
            if (head.x < 0 || head.x >= GRID_COUNT ||
                head.y < 0 || head.y >= GRID_COUNT ||
                snake.some(segment => segment.x === head.x && segment.y === head.y)) {
                gameOver();
                return;
            }

            snake.unshift(head);

            // 吃食物检测
            if (head.x === food.x && head.y === food.y) {
                score += 10;
                document.getElementById('score').textContent = score;
                generateFood();
            } else {
                snake.pop();
            }
        }

        function gameOver() {
            clearInterval(gameLoop);
            document.getElementById('game-over').style.display = 'block';
            document.getElementById('final-score').textContent = score;

            if (score > highScore) {
                highScore = score;
                localStorage.setItem('snakeHighScore', highScore);
                document.getElementById('high-score').textContent = highScore;
            }
        }

        function startGame() {
            document.getElementById('game-over').style.display = 'none';
            clearInterval(gameLoop);
            initGame();
            gameLoop = setInterval(() => {
                move();
                draw();
            }, 150);
        }

        // 键盘控制
        document.addEventListener('keydown', (event) => {
            switch (event.key) {
                case 'ArrowUp':
                    if (direction !== 'down') nextDirection = 'up';
                    break;
                case 'ArrowDown':
                    if (direction !== 'up') nextDirection = 'down';
                    break;
                case 'ArrowLeft':
                    if (direction !== 'right') nextDirection = 'left';
                    break;
                case 'ArrowRight':
                    if (direction !== 'left') nextDirection = 'right';
                    break;
            }
        });

        // 初始绘制
        draw();


        function goToIndex() {
            window.location.href = "index.html";
        }

    </script>

    <div style="margin-top: 20px; max-width: 500px;">
        <h3>游戏说明：</h3>
        <p>1. 点击"开始游戏"按钮开始游戏</p>
        <p>2. 使用方向键控制蛇的移动方向</p>
        <p>3. 吃到红色食物可以增长身体并获得10分</p>
        <p>4. 避免撞到墙壁或自己的身体</p>
        <p>5. 最高分会保存在本地浏览器中</p>
    </div>
</body>
</html>