Added an example

Author: jwagner

README.md

@@ -63,7 +63,7 @@ const random = new Alea(seed),
     value2d = simplex.noise2D(x, y);
 ```
 
-The ALEA PRNG can be found on in the npm package [alea](https://npmjs.org/package/alea).
+The ALEA PRNG can be found in the npm package [alea](https://npmjs.org/package/alea).
 
 ## node.js
 
@@ -99,7 +99,7 @@ npm install && npm test
 
 ## Changelog
 
-### main
+### 3.0.0
 - Changed module structure. When using bundlers that import the es module even using require() the import might need to be updated.
 - Dependency update
 - Setting sideEffects: false in package.json

examples/README.md

@@ -0,0 +1,2 @@
+You can view the built examples here:
+* https://29a.ch/simplex-noise/examples/plasma.html

examples/dist/main.js

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "simplex-noise": "../.."
+  }
+}

examples/node_modules/simplex-noise

@@ -0,0 +1,31 @@
+import SimplexNoise from 'simplex-noise';
+
+const canvas =  document.createElement('canvas');
+canvas.width = 512;
+canvas.height = 512;
+document.body.appendChild(canvas);
+
+const simplex = new SimplexNoise(),
+  ctx = canvas.getContext('2d'),
+  imgdata = ctx.getImageData(0, 0, canvas.width, canvas.height),
+  width = imgdata.width,
+  height = imgdata.height,
+  data = imgdata.data;
+
+function render() {
+  const t = performance.now()/1000;
+  for (var x = 0; x < width; x++) {
+    for (var y = 0; y < height; y++) {
+      var r = simplex.noise3D(x / 16, y / 16, t) * 0.5 + 0.5;
+      var g = simplex.noise3D(x / 8, y / 8, t) * 0.5 + 0.5;
+      data[(x + y * width) * 4 + 0] = r * 255;
+      data[(x + y * width) * 4 + 1] = (r + g) * 200;
+      data[(x + y * width) * 4 + 2] = 0;
+      data[(x + y * width) * 4 + 3] = 255;
+    }
+  }
+  ctx.putImageData(imgdata, 0, 0);
+  requestAnimationFrame(render);
+}
+
+requestAnimationFrame(render);

examples/package.json

@@ -0,0 +1,17 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
+const HtmlWebpackPlugin = require('html-webpack-plugin');
+const path = require('path');
+
+module.exports = {
+  entry: {
+    plasma: './plasma.js',
+  },
+  output: {
+    path: path.resolve(__dirname, '../public/examples/'),
+    filename: 'static/[name].cache-[contenthash:8].js',
+  },
+  plugins: [new HtmlWebpackPlugin({
+    filename: '[name].html',
+    title: 'Simplex-Noise.js examples'
+  })],
+};