生成代码雨

代码雨效果实现

我将创建一个类似《黑客帝国》风格的代码雨动画，使用HTML5 Canvas实现，并添加一些交互功能。

设计思路

  1. 使用Canvas绘制绿色字符雨效果
  2. 每个字符有不同的下落速度
  3. 添加鼠标交互效果
  4. 实现字符颜色渐变效果
  5. 添加开始/暂停和速度控制功能

下面是完整实现代码：


<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>代码雨 - 黑客帝国效果</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            background-color: #000;
            font-family: 'Courier New', monospace;
            color: #0f0;
            overflow: hidden;
            height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .container {
            position: relative;
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        canvas {
            display: block;
            background-color: #000;
        }

        .title {
            position: absolute;
            top: 20px;
            left: 0;
            width: 100%;
            text-align: center;
            z-index: 10;
            text-shadow: 0 0 10px #0f0;
            font-size: 2.8rem;
            letter-spacing: 8px;
        }

        .subtitle {
            position: absolute;
            top: 80px;
            left: 0;
            width: 100%;
            text-align: center;
            z-index: 10;
            font-size: 1.2rem;
            opacity: 0.8;
            letter-spacing: 3px;
        }

        .controls {
            position: absolute;
            bottom: 30px;
            left: 0;
            width: 100%;
            display: flex;
            justify-content: center;
            gap: 20px;
            z-index: 10;
            flex-wrap: wrap;
            padding: 0 20px;
        }

        .btn {
            background-color: rgba(0, 30, 0, 0.7);
            border: 1px solid #0f0;
            color: #0f0;
            padding: 10px 20px;
            font-family: 'Courier New', monospace;
            font-size: 1rem;
            cursor: pointer;
            border-radius: 4px;
            transition: all 0.3s;
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        .btn:hover {
            background-color: rgba(0, 60, 0, 0.9);
            box-shadow: 0 0 15px #0f0;
        }

        .btn.active {
            background-color: rgba(0, 100, 0, 0.9);
            box-shadow: 0 0 10px #0f0;
        }

        .speed-control {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #0f0;
        }

        .speed-slider {
            width: 150px;
            height: 6px;
            -webkit-appearance: none;
            background-color: #003000;
            border-radius: 3px;
            outline: none;
        }

        .speed-slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background-color: #0f0;
            cursor: pointer;
            border: 1px solid #0a0;
        }

        .footer {
            position: absolute;
            bottom: 10px;
            left: 0;
            width: 100%;
            text-align: center;
            font-size: 0.9rem;
            opacity: 0.6;
            letter-spacing: 1px;
        }

        @media (max-width: 768px) {
            .title {
                font-size: 1.8rem;
                letter-spacing: 4px;
            }

            .subtitle {
                font-size: 1rem;
                top: 60px;
            }

            .controls {
                gap: 10px;
            }

            .btn {
                padding: 8px 15px;
                font-size: 0.9rem;
            }
        }
    </style>
</head>
<body>
    <div class="container">
        <h1 class="title">CODE RAIN</h1>
        <p class="subtitle">黑客帝国风格代码雨模拟</p>

        <canvas id="codeRain"></canvas>

        <div class="controls">
            <button id="startBtn" class="btn active">开始代码雨</button>
            <button id="pauseBtn" class="btn">暂停动画</button>
            <button id="resetBtn" class="btn">重置效果</button>

            <div class="speed-control">
                <span>速度:</span>
                <input type="range" min="1" max="10" value="5" class="speed-slider" id="speedSlider">
                <span id="speedValue">5</span>
            </div>

            <button id="colorBtn" class="btn">切换颜色</button>
        </div>

        <div class="footer">
            移动鼠标与代码雨交互 | 点击按钮控制动画效果
        </div>
    </div>

    <script>
        // 获取Canvas元素和上下文
        const canvas = document.getElementById('codeRain');
        const ctx = canvas.getContext('2d');

        // 设置Canvas尺寸为窗口尺寸
        canvas.width = window.innerWidth;
        canvas.height = window.innerHeight;

        // 代码字符集 - 包括英文字母、数字和符号
        const chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789$+-*/=%\"'#&_(),.;:?!\\|{}<>[]^~";
        const charArray = chars.split("");

        // 代码雨列数组
        let columns = [];
        // 动画状态
        let animationId = null;
        let isRunning = true;
        // 颜色模式 (0: 绿色, 1: 蓝色, 2: 紫色, 3: 红色)
        let colorMode = 0;
        // 颜色配置
        const colorSchemes = [
            { main: "#0f0", light: "#9f9", dark: "#090" }, // 绿色
            { main: "#0af", light: "#7df", dark: "#08a" }, // 蓝色
            { main: "#f0f", light: "#f9f", dark: "#909" }, // 紫色
            { main: "#f00", light: "#f99", dark: "#900" }  // 红色
        ];

        // 速度控制 (1-10)
        let speed = 5;

        // 鼠标位置
        let mouseX = -100;
        let mouseY = -100;
        // 鼠标影响半径
        const mouseRadius = 100;

        // 初始化代码列
        function initColumns() {
            // 根据Canvas宽度计算列数 (每列20像素宽)
            const columnCount = Math.floor(canvas.width / 20);
            columns = [];

            for (let i = 0; i < columnCount; i++) {
                columns[i] = {
                    x: i * 20,
                    y: Math.random() * -canvas.height, // 从画布上方随机位置开始
                    speed: 5 + Math.random() * 10, // 随机速度
                    chars: [],
                    charCount: Math.floor(10 + Math.random() * 30) // 每列字符数量
                };

                // 为每列生成字符
                for (let j = 0; j < columns[i].charCount; j++) {
                    columns[i].chars.push({
                        char: charArray[Math.floor(Math.random() * charArray.length)],
                        color: 1.0
所有内容均由人工智能模型生成，其生成内容的准确性和完整性无法保证，不代表我们的态度或观点。