modlib/init.lua
2021-02-02 10:38:21 +01:00

101 lines
2.4 KiB
Lua

-- Lua version check
if _VERSION then
if _VERSION < "Lua 5" then
error("Outdated Lua version! modlib requires Lua 5 or greater.")
end
if _VERSION > "Lua 5.1" then
-- not throwing error("Too new Lua version! modlib requires Lua 5.1 or smaller.") anymore
unpack = unpack or table.unpack -- unpack was moved to table.unpack in Lua 5.2
loadstring = load
function setfenv(fn, env)
local i = 1
while true do
name = debug.getupvalue(fn, i)
if name == "_ENV" then
debug.setupvalue(fn, i, env)
break
elseif not name then
break
end
end
return fn
end
function getfenv(fn)
local i = 1
local name, val
repeat
name, val = debug.getupvalue(fn, i)
if name == "_ENV" then
return val
end
i = i + 1
until not name
end
end
end
modlib = {
dir_delim = rawget(_G, "DIR_DELIM") or "/",
_RG = setmetatable({}, {
__index = function(_, index)
return rawget(_G, index)
end,
__newindex = function(_, index, value)
return rawset(_G, index, value)
end
})
}
local function get_resource(modname, resource, ...)
if not resource then
resource = modname
modname = minetest.get_current_modname()
end
return table.concat({minetest.get_modpath(modname), resource, ...}, modlib.dir_delim)
end
local function loadfile_exports(filename)
local env = setmetatable({}, {__index = _G})
local file = assert(loadfile(filename))
setfenv(file, env)
file()
return env
end
for _, component in ipairs{
"mod",
"conf",
"schema",
"data",
"file",
"func",
"log",
"math",
"player",
"table",
"text",
"vector",
"quaternion",
"minetest",
"trie",
"heap",
"ranked_set",
"b3d"
} do
modlib[component] = loadfile_exports(get_resource(component .. ".lua"))
end
-- Aliases
modlib.string = modlib.text
modlib.number = modlib.math
modlib.conf.build_setting_tree()
modlib.mod.get_resource = get_resource
modlib.mod.loadfile_exports = loadfile_exports
_ml = modlib
--[[
--modlib.mod.include("test.lua")
]]