js实现文字变换排列动画效果代码-html代码-BFW代码库

js实现文字变换排列动画效果代码

代码语言：html

所属分类：动画

代码描述：js实现文字变换排列动画效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">

<head>

    <meta charset="UTF-8">






    <style>
        * {
          padding: 0;
          margin: 0;
          user-select: none;
        }
    </style>


</head>

<body>


    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/dat.gui-min.js"></script>
    <script>
        const getRandomNumber = function (min, max) {
        
          return Math.floor(Math.random() * (max - min + 1) + min);
        };
        
        /**
         * Time class
         */
        class Time {
          constructor(sketch) {
            this.sketch = sketch;
        
            this.initialize();
          }
        
          initialize() {
            const time = Date.now();
        
            //this.setupCanvas();
        
            this.startTime = time;
            this.lastTime = time;
          }
        
          setupCanvas() {
            document.
            getElementsByTagName("body")[0].
            appendChild(document.createElement("canvas"));
        
            this.canvas = document.getElementsByTagName('canvas')[1];
            this.ctx = this.canvas.getContext('2d');
        
            this.ctx.font = '16px sans-serif';
            const metrics = this.ctx.measureText('000 FPS');
        
            this.width = this.canvas.width = metrics.width;
            this.height = this.canvas.height = 16;
        
            this.canvas.style.position = 'fixed';
            this.canvas.style.zIndex = '9999';
            this.canvas.style.background = 'black';
            this.canvas.style.display = 'block';
            this.canvas.style.bottom = '0';
            this.canvas.style.right = '0';
          }
        
          calculateTime() {
            const time = Date.now();
        
            this.elapsedTime = time - this.startTime;
            this.fps = 1000 / (time - this.lastTime);
            this.lastTime = time;
          }
        
          drawFPS() {
            const ctx = this.ctx;
        
            ctx.clearRect(0, 0, this.width, this.height);
        
            ctx.save();
        
            ctx.fillStyle = 'rgb(2, 230, 231)&.........完整代码请登录后点击上方下载按钮下载查看