p5加perlin绘制多彩线条-html代码-BFW代码库

p5加perlin绘制多彩线条

代码语言：html

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 {
  margin: 0;
  overflow: hidden;
  display: flex;
  height: 100vh;
  background: black;
  cursor: pointer;
}

canvas {
  margin: auto;
  touch-action: none;
}

input {
  position: fixed;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  width: 80%;
  height: 34px;
  max-width: 400px;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
}
input::-webkit-slider-runnable-track {
  box-sizing: border-box;
  height: 6px;
  background: #fff;
  -webkit-appearance: none;
  appearance: none;
}
input::-moz-range-track {
  box-sizing: border-box;
  height: 6px;
  background: #fff;
  -webkit-appearance: none;
  appearance: none;
}
input::-ms-track {
  box-sizing: border-box;
  height: 6px;
  background: #fff;
  -webkit-appearance: none;
  appearance: none;
}
input::-webkit-slider-thumb {
  margin-top: -12px;
  box-sizing: border-box;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid black;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}
input::-moz-range-thumb {
  box-sizing: border-box;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid black;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}
input::-ms-thumb {
  margin-top: 0px;
  box-sizing: border-box;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid black;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

section {
  box-sizing: border-box;
  font-size: 30px;
  color: white;
  position: fixed;
  left: 0;
  top: 20px;
  width: 100%;
  text-align: center;
  padding: 0 10%;
  pointer-events: none;
}
section p {
  margin: 0;
  display: none;
}
@media (max-width: 500px) {
  section {
    font-size: 24px;
  }
}
</style>

</head>
<body translate="no">
<input type="range" min="1" max="7" step="1" id="step" value="1">
<section>
<p>Draw a line with a defined x & y speed</p>
<p>On every frame, add two random values to the x & y speed</p>
<p>Use a value from noise to make the final path more organic</p>
<p>Draw more lines at once</p>
<p>Make the lines thin and white</p>
<p>Use a lower opacity for the lines</p>
<p>Go crazy with the styles</p>
</section>
<script type="text/javascript" src="http://repo.bfw.wiki/bfwrepo/js/p5.js"></script>
<script type="text/javascript" src="http://repo.bfw.wiki/bfwrepo/js/perlin-min.js"></script>
<script>
console.clear();
const p = noise;
let branches = [];

class Branch {
  constructor (x, y) {
    this.x = x;
    this.y = y;
    this.prevx = x;
    this.prevy = y;
    this.visible = true;
    this.color = color(random(110, 110 + 100), 70, 100, 100);
    this.speed = {
      x: random(-7, 7),
      y: random(-7, 7)
    };
  }
  walls () {
    this.prevx = this.x;
    this.prevy = this.y;
    if (this.x < 0 || this.x > width || this.y < 0 || this.y > height) {
      this.visible = false;
    }
  }
  draw () {
    line(this.prevx, this.prevy, this.x, this.y);
  }
  moveStraight () {
    this.x += this.speed.x * 5;
    this.y += this.speed.y * 5;
  }
  moveRandom () {
    this.speed.x += random(-10, 10);
    this.speed.y += random(-10, 10);
    this.x += this.speed.x;
    this.y += this.speed.y;
  }
  moveNoise () {
    this.speed.x += .........完整代码请登录后点击上方下载按钮下载查看