33 lines
744 B
Lua
33 lines
744 B
Lua
mcl_groupcache = {
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cache = {},
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}
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local function check_insert(item, group, cache)
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if minetest.get_item_group(item, group) ~= 0 then
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table.insert(cache, item)
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end
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end
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local old_register_item = minetest.register_item
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function minetest.register_item(name, def)
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old_register_item(name, def)
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for group, cache in pairs(mcl_groupcache.cache) do
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check_insert(item, group, cache)
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end
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end
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function mcl_groupcache.init_cache(group)
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local cache = {}
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for item in pairs(minetest.registered_items) do
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check_insert(item, group, cache)
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end
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return cache
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end
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function mcl_groupcache.get_items_in_group(group)
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local cache = mcl_groupcache.cache[group] or mcl_groupcache.init_cache(group)
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mcl_groupcache.cache[group] = cache
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return cache
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end
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