Multiple steps per frame, set random seed

ants/main.lua

@@ -31,6 +31,8 @@ end
 local function initColors(rules)
   rules = rules:lower()
   local colorbrewer = require("colorbrewer")
+  -- set a specific random seed to avoid picking the same palette every time
+  math.randomseed(os.time())
   local scheme = colorbrewer.random()
   local variant = scheme[#rules]
   COLORS = {}
@@ -52,7 +54,6 @@ local function initScreen()
     love.graphics.setColor(color)
     love.graphics.rectangle("fill", 0, 0, WIDTH, HEIGHT)
   end)
-  UNITS = 8
 end
 
 local function initAnt()
@@ -81,6 +82,8 @@ end
 
 function love.load(args)
   local rules = args[1] or "RL"
+  UNITS = args[2] or 8
+  STEPS_PER_FRAME = args[3] or 5
   initColors(rules)
   initScreen()
   initAnt()
@@ -117,6 +120,7 @@ end
 
 function love.update()
   require("lurker").update()
+  for _ = 1, STEPS_PER_FRAME do
     local c = nextColor()
     ANT.direction = rotate(ANT.direction, c.clockwise)
     CANVAS:renderTo(function()
@@ -145,6 +149,7 @@ function love.update()
       ANT.y = (HEIGHT - 1) - ((HEIGHT - 1) % UNITS)
     end
   end
+end
 
 function love.draw()
   love.graphics.setBlendMode("alpha", "premultiplied")

flake.nix

@@ -22,7 +22,7 @@
             name = "love";
             packages = [ love ];
             shellHook = ''
-              mkdir vendor
+              mkdir -p vendor
               ln -snf ${lume}/lume.lua vendor/lume.lua
               ln -snf ${lurker}/lurker.lua vendor/lurker.lua
             '';