Second incarnation of the tweakable-system in SudoHack

tweakables_v2.lua

local tweakables = {}

function tweak(defaultVal, name)
	if not tweakables[name] then tweakables[name] = defaultVal end
	return tweakables[name]
end

local fileList = {}
function buildFileList(dir, includeDirs)
	local lfs = love.filesystem
	local files = lfs.getDirectoryItems(dir)
	for i = 1, #files do
		local file = dir .. files[i]
		if lfs.isFile(file) and file:sub(-4) == ".lua" then
			fileList[#fileList+1] = file
		elseif lfs.isDirectory(file) then
			for j = 1, #includeDirs do
				if includeDirs[j] == file then
					buildFileList(file .. "/", includeDirs)
					break
				end
			end
		end
	end
end

function updateTweakables(includeDirs) -- will only look for *.lua files in the root directory. other directories have to be included specifically
	if #fileList < 1 then -- build file list only the first time
		buildFileList("", includeDirs)
	end
	
	for i = 1, #fileList do
		local content = love.filesystem.read(fileList[i])
		for val, name in string.gmatch(content, 'tweak%((.-), "(.-)"%)') do -- has to be exactly of the form tweak(value, "name")
			tweakables[name] = tonumber(val)
		end
	end
end