minetest/builtin/async/game.lua
Jude Melton-Houghton 310b12b5ed
Content ID caching in Lua (#12444)
* Cache content IDs in Lua

Co-authored-by: sfan5 <sfan5@live.de>
2022-09-18 17:46:48 +02:00

65 lines
1.8 KiB
Lua

core.log("info", "Initializing asynchronous environment (game)")
local function pack2(...)
return {n=select('#', ...), ...}
end
-- Entrypoint to run async jobs, called by C++
function core.job_processor(func, params)
local retval = pack2(func(unpack(params, 1, params.n)))
return retval
end
-- Import a bunch of individual files from builtin/game/
local gamepath = core.get_builtin_path() .. "game" .. DIR_DELIM
local commonpath = core.get_builtin_path() .. "common" .. DIR_DELIM
local builtin_shared = {}
dofile(gamepath .. "constants.lua")
assert(loadfile(commonpath .. "item_s.lua"))(builtin_shared)
dofile(gamepath .. "misc_s.lua")
dofile(gamepath .. "features.lua")
dofile(gamepath .. "voxelarea.lua")
-- Transfer of globals
do
local all = assert(core.transferred_globals)
core.transferred_globals = nil
all.registered_nodes = {}
all.registered_craftitems = {}
all.registered_tools = {}
for k, v in pairs(all.registered_items) do
-- Disable further modification
setmetatable(v, {__newindex = {}})
-- Reassemble the other tables
if v.type == "node" then
all.registered_nodes[k] = v
elseif v.type == "craftitem" then
all.registered_craftitems[k] = v
elseif v.type == "tool" then
all.registered_tools[k] = v
end
end
for k, v in pairs(all) do
core[k] = v
end
end
-- For tables that are indexed by item name:
-- If table[X] does not exist, default to table[core.registered_aliases[X]]
local alias_metatable = {
__index = function(t, name)
return rawget(t, core.registered_aliases[name])
end
}
setmetatable(core.registered_items, alias_metatable)
setmetatable(core.registered_nodes, alias_metatable)
setmetatable(core.registered_craftitems, alias_metatable)
setmetatable(core.registered_tools, alias_metatable)
builtin_shared.cache_content_ids()