svg+simplex-noise绘制日出东方景色效果代码-html代码-BFW代码库

svg+simplex-noise绘制日出东方景色效果代码

代码语言：html

代码描述：svg+simplex-noise绘制日出东方景色效果代码

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>
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  height: 100vh;
  display: grid;
  place-items: center;
  background: hsl(0, 50%, 98%);
}

svg {
  width: 75vmin;
  height: 75vmin;
  overflow: visible;
}

button {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  padding: 0.5rem 1rem;
  border: 1px solid #111;
  background: #111;
  color: #fff;
  font-family: system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  font-weight: 600;
  cursor: pointer;
}
</style>



</head>

<body >
  <button>Regenerate!</button>
 

      <script type="module">
console.clear();

import { SVG } from "https://cdn.skypack.dev/@svgdotjs/svg.js";
import SimplexNoise from "https://cdn.skypack.dev/simplex-noise@2.4.0";

const simplex = new SimplexNoise();

const width = 200;
const height = 200;

const svg = SVG().viewbox(0, 0, width, height).addTo("body");
const circleMaskGroup = svg.group().attr("id", "circleMask");
const hillsGroup = circleMaskGroup.group().attr("id", "hills");

const skyColor = "hsl(0, 50%, 95%)";
const sunColor = "hsl(45, 88%, 65%)";
const sunDotColor = "hsl(45, 80%, 97%)";
const birdColor = "hsl(45, 80%, 10%)";

circleMaskGroup.maskWith(svg.circle(200).cx(100).cy(100).fill("#fff"));
svg.circle(200).cx(100).cy(100).fill("transparent").stroke({
  width: 3,
  color: "hsl(45, 60%, 85%)"
});

hillsGroup.rect(200, 200).fill(skyColor);

for (let i = 0; i < 25; i++) {
  bird(random(0, 200), random(0, 200));
}

createSun();
createHills();

const stitching = svg
  .text("Stitching away...")
  .font({
    family: "Georgia",
    size: 12
  })
  .cx(100)
  .cy(100)
  .attr("id", "stitching")
  .hide();

document.querySelector("button").addEventListener("click", () => {
  stitching.show();
  circleMaskGroup.node.style.opacity = 0;

  setTimeout(() => {
    hillsGroup.clear();
    hillsGroup.rect(200, 200).fill(skyColor);
    for (let i = 0; i < 25; i++) {
      bird(random(0, 200), random(0, 200));
    }
    createSun();
    createHills();

    stitching.hide();
    circleMaskGroup.node.style.opacity = 1;
  }, 50);
});

function bird(x, y) {
  const bird = hillsGroup
    .path(`M 0 0, Q 2 4 4 0`)
    .stroke(birdColor)
    .fill("none")
    .translate(x, y)
    .scale(random(0.5, 1))
    .rotate(random(-20, 20));
}

function createSun() {
  const originX = random(70, 100);
  const originY = random(50, 60);
  const baseRad = random(40, 50);
  hillsGroup
    .rect(baseRad * 2, baseRad * 2)
    .cx(originX)
    .cy(originY)
    .fill(skyColor);
  const inner = hillsGroup
    .circle(baseRad)
    .cx(originX)
    .cy(originY)
    .fill(sunColor);
  const bounds = inner.bbox();

  let rays = 32;
  const angleStep = (Math.PI * 2) / rays;

  let rad;

  for (let i = 1; i <= rays; i++) {
    if (i % 2 === 0) {
      rad = baseRad / 1.375;
    } else {
      rad = baseRad;
    }
    const theta = i * angleStep;
    const x = originX + Math.cos(theta) * rad;
    const y = originY + Math.sin(theta) * rad;

    const ray = hillsGroup.line(originX, originY, x, y).stroke({
      color: sunColor,
      linecap: "round",
      dasharray: 1
    });
  }

  const dots = dotPattern(bounds.x, bounds.y, baseRad, baseRad, 5, hillsGroup);
  dots.group.maskWith(inner.clone().fill("#fff"));

  dots.children.forEach((d) => {
    d.attr("fill", sunDotColor);
  });
}

function createHills() {
  const numHills = 3;
  const hills = [];

  for (let i = 0; i < numHills; i++) {
    const container = hillsGrou.........完整代码请登录后点击上方下载按钮下载查看