Fixed compile errors

.luacheckrc

@@ -1,4 +1,4 @@
 std = "max+love+busted"
 self = false
 globals = {}
-exclude_files = { }
+exclude_files = {"moonpie/*"}

conf.lua

@@ -1,5 +1,5 @@
 -- Copyright (c) 2019 Trevor Redfern
--- 
+--
 -- This software is released under the MIT License.
 -- https://opensource.org/licenses/MIT
 
@@ -9,6 +9,6 @@ function love.conf(t)
   t.window.width = 800
   t.window.vsync = 1
   t.window.fullscreen = false
-  
+
   package.path = package.path .. ";./ext/?.lua;./ext/?/init.lua"
 end

main.lua

@@ -1,6 +1,14 @@
 -- Copyright (c) 2019 Trevor Redfern
--- 
+--
 -- This software is released under the MIT License.
 -- https://opensource.org/licenses/MIT
 
-local moonpie = require "moonpie"
+local moonpie = require "moonpie"
+
+function love.update()
+  moonpie.update()
+end
+
+function love.draw()
+  moonpie.paint()
+end

test_helpers/all.lua

@@ -1,5 +1,5 @@
 -- Copyright (c) 2019 Trevor Redfern
--- 
+--
 -- This software is released under the MIT License.
 -- https://opensource.org/licenses/MIT