canvas实现彩色棍子上下波浪波动动画效果代码

代码语言:html

所属分类:动画

代码描述:canvas实现彩色棍子上下波浪波动动画效果代码

代码标签: canvas 彩色 棍子 上下 波浪 波动 动画

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;
          boz-sizing:border-box;
        }
        #c{
          background-color:#01295f;
        }
    </style>




</head>

<body>
    <canvas id="c"></canvas>

    <script>
        let w = window.innerWidth;
        let h = window.innerHeight;
        let cw = w / 2;
        let ch = h / 2;
        
        let colorsArr = ['#437F97', '#849324', '#FFB30F', '#FD151B', '#013E3f', '#dedede'];
        // let colorsArr = ['#bbb','#eee']
        
        let canvas = document.querySelector('#c');
        canvas.width = w;
        canvas.height = h;
        let ctx = canvas.getContext('2d');
        let counter = 0;
        let speed = 0.07;
        let waveH = h / 13;
        let freq = 4; // how many waves; value = length, so smaller number = more waves (2-20)
       

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