Start implementing I/O for level data.

src/wave.lua

@@ -4,13 +4,24 @@
 import "CoreLibs/object"
 import "entity"
 
+local yaml = import "lib/lyaml"
 local gfx <const> = playdate.graphics
 local geom <const> = playdate.geometry
 
 class("Wave").extends()
 
-function Wave.new()
+-- returns a new Wave by loading in and parsing the wave data at path
+function Wave.new(path)
    local w = Wave()
+
+   local file = io.open(path)
+   if not file then return nil end
+   local data = yaml.load(file.read("*a"))
+
+   for e in data.entities do
+      -- tk
+   end
+
    return w
 end