mirror of
https://github.com/minetest-mods/unified_inventory.git
synced 2024-08-21 13:54:10 +02:00
This also keeps recipes aligned to the right, close to the arrow. It also calculates the craft's height.
67 lines
2.0 KiB
Lua
67 lines
2.0 KiB
Lua
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unified_inventory.registered_group_items = {
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mesecon_conductor_craftable = "mesecons:wire_00000000_off",
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wool = "wool:white",
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}
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function unified_inventory.register_group_item(groupname, itemname)
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unified_inventory.registered_group_items[groupname] = itemname
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end
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-- This is used when displaying craft recipes, where an ingredient is
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-- specified by group rather than as a specific item. A single-item group
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-- is represented by that item, with the single-item status signalled
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-- in the "sole" field. If the group contains no items at all, the item
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-- field will be nil.
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--
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-- Within a multiple-item group, we prefer to use an item that has the
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-- same specific name as the group, and if there are more than one of
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-- those items we prefer the one registered for the group by a mod.
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-- Among equally-preferred items, we just pick the one with the
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-- lexicographically earliest name.
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function compute_group_item(group_name)
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local candidate_items = {}
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for itemname, itemdef in pairs(minetest.registered_items) do
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if (itemdef.groups.not_in_creative_inventory or 0) == 0 and
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(itemdef.groups[group_name] or 0) ~= 0 then
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table.insert(candidate_items, itemname)
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end
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end
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local num_candidates = #candidate_items
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if num_candidates == 0 then
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return {sole = true}
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elseif num_candidates == 1 then
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return {item = candidate_items[1], sole = true}
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end
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local bestitem = ""
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local bestpref = 0
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for _, item in ipairs(candidate_items) do
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local pref
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if item == unified_inventory.registered_group_items[group_name] then
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pref = 3
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elseif item:gsub("^[^:]+:", "") == group_name then
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pref = 2
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else
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pref = 1
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end
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if pref > bestpref or (pref == bestpref and item < bestitem) then
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bestitem = item
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bestpref = pref
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end
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end
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return {item = bestitem, sole = false}
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end
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local group_item_cache = {}
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function unified_inventory.get_group_item(group_name)
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if not group_item_cache[group_name] then
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group_item_cache[group_name] = compute_group_item(group_name)
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end
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return group_item_cache[group_name]
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end
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