Change cart loading and begin work on loading carts in the program's operation

src/cart.lua

@@ -1,5 +1,6 @@
 local Cart = {
-	code = function() return function() end, function() end end
+	update = function() end,
+	draw = function() end,
 }
 
 local function split(str)
@@ -28,6 +29,10 @@ function Cart:loadCart(s)
 	local ok,err = pcall(loadstring,code)
 	if not ok then error(err) end
 	sandbox(err)
-	ret.code = err
+	update, draw = err()
+	ret.update = update
+	ret.draw = draw
 	return ret
 end
+
+return {Cart=Cart}

src/main.lua

@@ -10,20 +10,21 @@ function _G.sandbox(f)
 	end
 	setfenv(f,glob)
 end
+local Cart = require("cart").Cart
+local cart
 function love.load()
 	require("cindy").applyPatch()
 	_G.scr = love.graphics.newCanvas(256,240)
-	love.graphics.setCanvas(scr)
-	local test = load("rectfill(0,0,5,5,10)")
-	sandbox(test)
-	test()
+	cart = Cart:loadCart("test.lua")
 end
 
 function love.update(dt)
 	if love.keyboard.isDown("escape") then love.event.quit() end
+	cart.update()
 end
 
 function love.draw()
+	cart.draw()
 	love.graphics.setBackgroundColor(0,0,0)
 	love.graphics.setColor(255,255,255)
 	love.graphics.draw(scr,0,0,0,CONFIG.scalefactor,CONFIG.scalefactor)