bunkerweb 1.4.0

deps/src/lua-gd/demos/fractal.lua

@@ -0,0 +1,31 @@
+#!/usr/bin/env lua
+
+-- Draws the famous Sierpinski triangle with lua-gd
+
+local gd = require("gd")
+
+local size = 500
+
+local im = gd.createPalette(size, size)
+local white = im:colorAllocate(255, 255, 255)
+local black = im:colorAllocate(0, 0, 0)
+
+local m = {}
+m[math.floor(size/2)] = true
+
+local n
+for i = 1, size do
+  n = {}
+  for j = 1, size do
+    if m[j] then
+      im:setPixel(j, i, black)
+      n[j+1] = not n[j+1]
+      n[j-1] = not n[j-1]
+    end
+  end
+  m = n
+end
+
+im:png("out.png")
+os.execute("xdg-open out.png")
+