function blockgame.stringify (tab)
	if type(tab) == "table" then
		local result = "{ "
		for key, value in pairs(tab) do
			result = result .. key .. ": " .. blockgame.stringify(value) .. ", "
		end
		return result .. "}"
	elseif type(tab) == "function" then
		return "<function>"
	elseif type(tab) == "boolean" then
		if tab then return "true" else return "false" end
	elseif type(tab) == "nil" then
		return "nil"
	else
		return tab
	end
end