电路板流动动画效果-html代码-BFW代码库

电路板流动动画效果

代码语言：html

所属分类：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>
<title>CodePen - Techy Nodes</title>
<style>
      html, body {
  height: 100%;
  overflow: hidden;
}

canvas {
  line-height: 0;
  margin-bottom: 0;
}

.nodes-canvas {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
}

.cache-canvas {
  background-color: #6622ff;
}

.main-canvas {
  opacity: 1;
}

.connection-paths {
  display: none;
  position: absolute;
  top: 0;
  left: 50%;
  height: 100%;
  width: auto;
  -webkit-transform: translate(-50%);
          transform: translate(-50%);
}

.connection-path {
  stroke: white;
  stroke-width: 2px;
  fill: none;
}

.center {
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}

.message-text {
  text-align: center;
  color: #6622ff;
  font-size: 30vw;
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 0;
}

.emblem {
  border-radius: 50%;
  height: 35vw;
  width: 35vw;
  background-color: #32e4b0;
}

    </style>

</head>
<body translate="no">
<canvas id="cache-canvas" class="nodes-canvas cache-canvas"></canvas>
<canvas id="main-canvas" class="nodes-canvas main-canvas"></canvas>
<script src='http://repo.bfw.wiki/bfwrepo/js/dat.gui.min.js'></script>
<script>
      const cacheCanvas = document.getElementById('cache-canvas');
const canvas = document.getElementById('main-canvas');
const cacheCtx = cacheCanvas.getContext('2d');
const ctx = canvas.getContext('2d');

const __bounds = {};
const __dpr = window.devicePixelRatio || 1;
let __nodePaths = [];
let __shouldDraw = true;
let __isDrawing = false;
const EPSILON = 0.0001;


const pathFunctions = {
  spider: function (startX, startY, endX, endY, distance) {
    return [
    startX,
    startY,
    startX + (Math.random() * 2 - 1) * distance,
    startY + (Math.random() * 2 - 1) * distance,
    endX + (Math.random() * 2 - 1) * distance,
    endY + (Math.random() * 2 - 1) * distance,
    endX,
    endY];

  },

  techy: function (startX, startY, endX, endY, distance) {
    const diffX = endX - startX;
    const diffY = endY - startY;
    const angle = Math.atan2(diffY, -diffX) + Math.PI * 1.25;

    const ret = [startX, startY,,, endX, endY];

    //if above or below point
    if (angle % Math.PI < Math.PI / 2) {
      if (Math.random() > 0.5) {
        ret[2] = endX - Math.abs(diffY) * Math.sign(diffX);
        ret[3] = startY;
      } else
      {
        ret[2] = startX + Math.abs(diffY) * Math.sign(diffX);
        ret[3] = endY;
      }
    }

    //if left or right of point
    else {
        if (Math.random() > 0.5) {
          ret[2] = startX;
          ret[3] = endY - Math.abs(diffX) * Math.sign(diffY);
        } else
        {
          ret[2] = endX;
          ret[3] = startY + Math.abs(diffX) * Math.sign(diffY);
        }
      }

    return ret;
  } };


const spring = {
  k: -8.5,
  b: -61 };


const settings = .........完整代码请登录后点击上方下载按钮下载查看