Create hotlink.js

src/programs/demos/hotlink.js

@@ -0,0 +1,27 @@
+/**
+[header]
+@author ertdfgcvb
+@title  Hotlink
+@desc   Function hotlink example (GitHub)
+The code for the Simplex Noise function is downloaded from GitHub
+and evaluated trough “new Function()”.
+*/
+
+fetch("https://raw.githubusercontent.com/blindman67/SimplexNoiseJS/master/simplexNoise.js").then(e => e.text()).then(t => {
+	const openSimplexNoise = new Function("return " + t)()
+	noise3D = openSimplexNoise(Date.now()).noise3D
+})
+
+// Stub function
+function noise3D() { return 0 }
+
+const density = 'Ñ@#W$9876543210?!abcxyz;:+=-,._ '
+
+export function main(coord, context, cursor, buffer) {
+	const t = context.time * 0.0007
+	const s = 0.03
+	const x = coord.x * s
+	const y = coord.y * s / context.metrics.aspect + t
+	const i = Math.floor((noise3D(x, y, t) * 0.5 + 0.5) * density.length)
+	return density[i]
+}