canvas实现五彩花朵粒子飞翔动画效果代码-html代码-BFW代码库

canvas实现五彩花朵粒子飞翔动画效果代码

代码语言：html

所属分类：动画

代码描述：canvas实现五彩花朵粒子飞翔动画效果代码

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>
body,html{
  background: #000;
  margin: 0;
  height: 100vh;
  overflow: hidden;
}
#c{
  background:#fff;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
</style>

  
  
</head>

<body >
  <canvas id=c>

  
      <script >
c = document.querySelector('#c');
c.width = 1920;
c.height = 1080;
x = c.getContext('2d');
C = Math.cos;
S = Math.sin;
t = 0;
T = Math.tan;

rsz = window.onresize = () => {
  setTimeout(() => {
    if (document.body.clientWidth > document.body.clientHeight * 1.77777778) {
      c.style.height = '100vh';
      setTimeout(() => c.style.width = c.clientHeight * 1.77777778 + 'px', 0);
    } else {
      c.style.width = '100vw';
      setTimeout(() => c.style.height = c.clientWidth / 1.77777778 + 'px', 0);
    }
  }, 0);
};
rsz();

async function Draw() {

  if (!t) {
    R = (Rl, Pt, Yw, m) => {
      M = Math;
      A = M.atan2;
      H = M.hypot;
      X = S(p = A(X, Y) + Rl) * (d = H(X, Y));
      Y = C(p) * d;
      X = S(p = A(X, Z) + Yw) * (d = H(X, Z));
      Z = C(p) * d;
      Y = S(p = A(Y, Z) + Pt) * (d = H(Y, Z));
      Z = C(p) * d;
      if (m) {
        X += oX;
        Y += oY;
        Z += oZ;
      }
    };

    Q = () => [c.width / 2 + X / Z * 800, c.height / 2 + Y / Z * 800];

    Cylinder = (rw, cl, ls1, ls2) => {
      let a = [];
      for (let i = rw; i--;) {
        let b = [];
        for (let j = cl; j--;) {
          X = S(p = Math.PI * 2 / cl * j) * ls1;
          Y = (1 / rw * i - .5) * ls2;
          Z = C(p) * ls1;
          b = [...b, [X, Y, Z]];
        }
        for (let j = cl; j--;) {
          b = [];
          X = S(p = Math.PI * 2 / cl * j) * ls1;
          Y = (1 / rw * i - .5) * ls2;
          Z = C(p) * ls1;
          b = [...b, [X, Y, Z]];
          X = S(p = Math.PI * 2 / cl * (j + 1)) * ls1;
          Y = (1 / rw * i - .5) * ls2;
          Z = C(p) * ls1;
          b = [...b, [X, Y, Z]];
          X = S(p = Math.PI * 2 / cl * (j + 1)) * ls1;
          Y = (1 / rw * (i + 1) - .5) * ls2;
          Z = C(p) * ls1;
          b = [...b, [X, Y, Z]];
          X = S(p = Math.PI * 2 / cl * j) * ls1;
          Y = (1 / rw * (i + 1) - .5) * ls2;
          Z = C(p) * ls1;
          b = [...b, [X, Y, Z]];
          a = [...a, b];
        }
      }
      b = [];
      for (let j = cl; j--;) {
        X = S(p = Math.PI * 2 / cl * j) * ls1;
        Y = ls2 / 2;
        Z = C(p) * ls1;
        b = [...b, [X, Y, Z]];
      }
      //a = [...a, b]
      return a;
    };

    stroke = (scol, fcol, lwo = 1) => {
      if (scol) {
        x.closePath();
        x.gl.........完整代码请登录后点击上方下载按钮下载查看