mirror of
https://github.com/minetest-mods/unified_inventory.git
synced 2024-10-31 23:30:30 +01:00
Completely rewritten craft matching and moving code.
This commit is contained in:
Andrey Kozlovskiy
parent
542065f671
commit
21a70df468
751
match_craft.lua
751
match_craft.lua
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@ -1,493 +1,368 @@
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local function extract_group_name(name)
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return name:match("^group:(.+)")
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end
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-- match_craft.lua
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-- Find and automatically move inventory items to the crafting grid
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-- according to the recipe.
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local function count_compare(item1, item2)
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return item1.index.total_count > item2.index.total_count
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end
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--[[
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Retrieve items from inventory lists and calculate their total count.
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Return a table of "item name" - "total count" pairs.
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local function lex_compare(group1, group2)
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local items1 = group1.items
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local items2 = group2.items
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Arguments:
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inv: minetest inventory reference
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lists: names of inventory lists to use
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local len1 = group1.items_count
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local len2 = group2.items_count
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local min_len = math.min(len1, len2)
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Example usage:
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-- Count items in "main" and "craft" lists of player inventory
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unified_inventory.count_items(player_inv_ref, {"main", "craft"})
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for i = 1, min_len do
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local count1 = items1[i].index.total_count
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local count2 = items2[i].index.total_count
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if count1 ~= count2 then
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return count1 < count2
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end
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end
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return len1 < len2
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end
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function unified_inventory.add_craft_item(t, item_name, craft_pos)
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local item = t[item_name]
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if item == nil then
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t[item_name] = {
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times_used = 1,
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craft_positions = {craft_pos},
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found = false
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}
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else
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local times_used = item.times_used + 1
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item.craft_positions[times_used] = craft_pos
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item.times_used = times_used
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end
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end
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function unified_inventory.add_craft_group(t, group_name, craft_pos)
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local group = t[group_name]
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if group == nil then
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t[group_name] = {
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times_used = 1,
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craft_positions = {craft_pos},
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found = false,
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items_count = 0,
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found_items = {}
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}
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else
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local times_used = group.times_used + 1
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group.craft_positions[times_used] = craft_pos
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group.times_used = times_used
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end
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end
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function unified_inventory.create_craft_index(craft)
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local craft_index = {
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items = {},
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groups = {}
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Example output:
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{
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["default:pine_wood"] = 2,
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["default:acacia_wood"] = 4,
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["default:chest"] = 3,
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["default:axe_diamond"] = 2, -- unstackable item are counted too
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["wool:white"] = 6
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}
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]]--
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function unified_inventory.count_items(inv, lists)
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local counts = {}
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local MAX_HEIGHT = 3
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local MAX_WIDTH = 3
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for i = 1, #lists do
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local name = lists[i]
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local size = inv:get_size(name)
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local list = inv:get_list(name)
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local craft_items = craft.items
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local craft_width = craft.width
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for j = 1, size do
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local stack = list[j]
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if craft_width == 0 then
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craft_width = MAX_WIDTH
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end
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if not stack:is_empty() then
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local item = stack:get_name()
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local count = stack:get_count()
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local pos = 1
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for y = 1, MAX_HEIGHT do
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for x = 1, craft_width do
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local craft_pos = (y - 1) * MAX_WIDTH + x
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local item = craft_items[pos]
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if item ~= nil then
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local group = extract_group_name(item)
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if group == nil then
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unified_inventory.add_craft_item(craft_index.items, item, craft_pos)
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else
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unified_inventory.add_craft_group(craft_index.groups, group, craft_pos)
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end
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end
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pos = pos + 1
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end
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end
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return craft_index
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end
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function unified_inventory.find_craft_item(item_name, craft_index)
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local found = false
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local item = craft_index.items[item_name]
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local get_item_group = minetest.get_item_group
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if item ~= nil then
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item.found = true
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found = true
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end
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for group_name, group in pairs(craft_index.groups) do
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if get_item_group(item_name, group_name) > 0 then
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group.found = true
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found = true
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local items_count = group.items_count + 1
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group.found_items[items_count] = item_name
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group.items_count = items_count
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end
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end
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return found
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end
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function unified_inventory.all_items_found(craft_index)
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for _, item in pairs(craft_index.items) do
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if not item.found then
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return false
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end
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end
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for _, group in pairs(craft_index.groups) do
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if not group.found then
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return false
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end
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end
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return true
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end
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function unified_inventory.create_item_index(craft_index)
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local item_index = {
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craft_index = craft_index,
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stack_max = nil,
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used_items = {},
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unused_items = {}
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}
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return item_index
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end
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function unified_inventory.add_list_items(item_index, inv_list)
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local craft_index = item_index.craft_index
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local index_used = item_index.used_items
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local index_unused = item_index.unused_items
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local list_count = #inv_list
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for i = 1, list_count do
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local stack = inv_list[i]
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if not stack:is_empty() then
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local item_name = stack:get_name()
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local item_count = stack:get_count()
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local item = index_used[item_name]
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if item == nil then
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if index_unused[item_name] == nil then
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local item_found = unified_inventory.find_craft_item(item_name, craft_index)
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if item_found then
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index_used[item_name] = {
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total_count = item_count,
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times_matched = 0
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}
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local stack_max = stack:get_stack_max()
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local index_stack_max = item_index.stack_max
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if index_stack_max == nil or stack_max < index_stack_max then
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item_index.stack_max = stack_max
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end
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else
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index_unused[item_name] = true
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end
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end
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else
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item.total_count = item.total_count + item_count
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counts[item] = (counts[item] or 0) + count
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end
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end
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end
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return counts
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end
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function unified_inventory.get_group_items(group, item_index)
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local items = {}
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local items_names = group.found_items
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local items_count = group.items_count
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--[[
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Retrieve craft recipe items and their positions in the crafting grid.
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Return a table of "craft item name" - "set of positions" pairs.
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local index_used = item_index.used_items
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Note that if craft width is not 3 then positions are recalculated as
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if items were placed on a 3x3 grid. Also note that craft can contain
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groups of items with "group:" prefix.
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for i = 1, items_count do
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local item_name = items_names[i]
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local item = index_used[item_name]
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items[i] = {
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name = item_name,
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index = item
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}
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end
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return items
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end
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function unified_inventory.ordered_groups(craft_index, item_index)
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local groups = {}
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local groups_count = 0
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for group_name, group in pairs(craft_index.groups) do
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local group_items = unified_inventory.get_group_items(group, item_index)
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table.sort(group_items, count_compare)
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groups_count = groups_count + 1
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groups[groups_count] = {
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name = group_name,
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items_count = group.items_count,
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items = group_items
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}
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end
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table.sort(groups, lex_compare)
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Arguments:
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craft: minetest craft recipe
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Example output:
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-- Bed recipe
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{
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["wool:white"] = {[1] = true, [2] = true, [3] = true}
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["group:wood"] = {[4] = true, [5] = true, [6] = true}
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}
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--]]
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function unified_inventory.count_craft_positions(craft)
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local positions = {}
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local items = craft.items
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local width = craft.width
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local i = 0
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return function()
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i = i + 1
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if i <= groups_count then
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local group = groups[i]
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return craft_index.groups[group.name], group.items
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end
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end
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end
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function unified_inventory.match_items(m, craft_index, item_index)
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local index_used = item_index.used_items
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for item_name, item in pairs(craft_index.items) do
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local index = index_used[item_name]
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local times_used = item.times_used
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local cell_count = math.floor(index.total_count / times_used)
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if cell_count == 0 then
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m.count = 0
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return
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end
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index.times_matched = times_used
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m.count = math.min(m.count, cell_count)
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local positions = item.craft_positions
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for i = 1, times_used do
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local craft_pos = positions[i]
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m.items[craft_pos] = item_name
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end
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end
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end
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function unified_inventory.match_groups(m, craft_index, item_index)
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for group, group_items in unified_inventory.ordered_groups(craft_index, item_index) do
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local times_used = group.times_used
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local positions = group.craft_positions
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local items_count = group.items_count
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for i = 1, times_used do
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local craft_pos = positions[i]
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local cell_count = 0
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local matched_item = nil
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for j = 1, items_count do
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local item = group_items[j]
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local index = item.index
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local item_count = index.total_count
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local times_matched = index.times_matched
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local match_count = math.floor(item_count / (times_matched + 1))
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if match_count > cell_count then
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cell_count = match_count
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matched_item = item
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end
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end
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if cell_count == 0 then
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m.count = 0
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return
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end
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m.count = math.min(m.count, cell_count)
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m.items[craft_pos] = matched_item.name
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local matched_index = matched_item.index
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matched_index.times_matched = matched_index.times_matched + 1
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end
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end
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end
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function unified_inventory.get_match_table(craft_index, item_index)
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local match_table = {
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count = item_index.stack_max,
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items = {}
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}
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unified_inventory.match_items(match_table, craft_index, item_index)
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unified_inventory.match_groups(match_table, craft_index, item_index)
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if match_table.count == 0 then
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return
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if width == 0 then
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width = 3
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end
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return match_table
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end
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for y = 1, 3 do
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for x = 1, width do
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i = i + 1
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local item = items[i]
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function unified_inventory.find_best_match(src_list, dst_list, craft)
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local craft_index = unified_inventory.create_craft_index(craft)
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if item ~= nil then
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local pos = 3 * (y - 1) + x
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local set = positions[item]
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local item_index = unified_inventory.create_item_index(craft_index)
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unified_inventory.add_list_items(item_index, src_list)
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unified_inventory.add_list_items(item_index, dst_list)
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if not unified_inventory.all_items_found(craft_index) then
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return
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end
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return unified_inventory.get_match_table(craft_index, item_index)
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end
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function unified_inventory.take_item_skip(inv, list_name, item_stack, skipped)
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local inv_list = inv:get_list(list_name)
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local list_count = #inv_list
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local item_name = item_stack:get_name()
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local item_count = item_stack:get_count()
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local removed = ItemStack(item_name)
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local removed_count = 0
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for i = list_count, 1, -1 do
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if skipped[i] == nil then
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local stack = inv:get_stack(list_name, i)
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local name = stack:get_name()
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if name == item_name then
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local count = stack:get_count()
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local left = count - item_count
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if left > 0 then
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removed_count = removed_count + item_count
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stack:set_count(left)
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inv:set_stack(list_name, i, stack)
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break
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if set ~= nil then
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set[pos] = true
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else
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removed_count = removed_count + count
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item_count = item_count - count
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inv:set_stack(list_name, i, nil)
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positions[item] = {[pos] = true}
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end
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end
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end
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end
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removed:set_count(removed_count)
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return positions
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end
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--[[
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For every craft item find all matching inventory items.
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- If craft item is a group then find all inventory items that matches
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this group.
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- If craft item is not a group (regular item) then find only this item.
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If inventory doesn't contain needed item then found set is empty for
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this item.
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Return a table of "craft item name" - "set of matching inventory items"
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pairs.
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Arguments:
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inv_items: table with items names as keys
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craft_items: table with items names or groups as keys
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Example output:
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{
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["group:wood"] = {
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["default:pine_wood"] = true,
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["default:acacia_wood"] = true
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},
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["wool:white"] = {
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["wool:white"] = true
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}
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}
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--]]
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function unified_inventory.find_usable_items(inv_items, craft_items)
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local get_group = minetest.get_item_group
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local result = {}
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for craft_item in pairs(craft_items) do
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local group = craft_item:match("^group:(.+)")
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local found = {}
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if group ~= nil then
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for inv_item in pairs(inv_items) do
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if get_group(inv_item, group) > 0 then
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found[inv_item] = true
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end
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end
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else
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if inv_items[craft_item] ~= nil then
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found[craft_item] = true
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end
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end
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result[craft_item] = found
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end
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return result
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end
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--[[
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Match inventory items with craft grid positions.
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For every position select the matching inventory item with maximum
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(total_count / (times_matched + 1)) value.
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If for some position matching item cannot be found or match count is 0
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then return nil.
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Return a table of "matched item name" - "set of craft positions" pairs
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and overall match count.
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Arguments:
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inv_counts: table of inventory items counts from "count_items"
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craft_positions: table of craft positions from "count_craft_positions"
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Example output:
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match_table = {
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["wool:white"] = {[1] = true, [2] = true, [3] = true}
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["default:acacia_wood"] = {[4] = true, [6] = true}
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["default:pine_wood"] = {[5] = true}
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}
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match_count = 2
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--]]
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function unified_inventory.match_items(inv_counts, craft_positions)
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local usable = unified_inventory.find_usable_items(inv_counts, craft_positions)
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local match_table = {}
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local match_count
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local matches = {}
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for craft_item, pos_set in pairs(craft_positions) do
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local use_set = usable[craft_item]
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|
||||
for pos in pairs(pos_set) do
|
||||
local pos_item
|
||||
local pos_count
|
||||
|
||||
for use_item in pairs(use_set) do
|
||||
local count = inv_counts[use_item]
|
||||
local times_matched = matches[use_item] or 0
|
||||
local new_pos_count = math.floor(count / (times_matched + 1))
|
||||
|
||||
if pos_count == nil or pos_count < new_pos_count then
|
||||
pos_item = use_item
|
||||
pos_count = new_pos_count
|
||||
end
|
||||
end
|
||||
|
||||
if pos_item == nil or pos_count == 0 then
|
||||
return nil
|
||||
end
|
||||
|
||||
local set = match_table[pos_item]
|
||||
|
||||
if set ~= nil then
|
||||
set[pos] = true
|
||||
else
|
||||
match_table[pos_item] = {[pos] = true}
|
||||
end
|
||||
|
||||
matches[pos_item] = (matches[pos_item] or 0) + 1
|
||||
end
|
||||
end
|
||||
|
||||
for match_item, times_matched in pairs(matches) do
|
||||
local count = inv_counts[match_item]
|
||||
local item_count = math.floor(count / times_matched)
|
||||
|
||||
if match_count == nil or item_count < match_count then
|
||||
match_count = item_count
|
||||
end
|
||||
end
|
||||
|
||||
return match_table, match_count
|
||||
end
|
||||
|
||||
--[[
|
||||
Remove item from inventory lists.
|
||||
Return stack of actually removed items.
|
||||
|
||||
This function replicates the inv:remove_item function but can accept
|
||||
multiple lists.
|
||||
|
||||
Arguments:
|
||||
inv: minetest inventory reference
|
||||
lists: names of inventory lists
|
||||
stack: minetest item stack
|
||||
--]]
|
||||
function unified_inventory.remove_item(inv, lists, stack)
|
||||
local removed = ItemStack(nil)
|
||||
local leftover = ItemStack(stack)
|
||||
|
||||
for i = 1, #lists do
|
||||
if leftover:is_empty() then
|
||||
break
|
||||
end
|
||||
|
||||
local cur_removed = inv:remove_item(lists[i], leftover)
|
||||
removed:add_item(cur_removed)
|
||||
leftover:take_item(cur_removed:get_count())
|
||||
end
|
||||
|
||||
return removed
|
||||
end
|
||||
|
||||
function unified_inventory.add_item_skip(inv, list_name, item_stack, skipped)
|
||||
local inv_list = inv:get_list(list_name)
|
||||
local list_count = #inv_list
|
||||
--[[
|
||||
Add item to inventory lists.
|
||||
Return leftover stack.
|
||||
|
||||
local item_name = item_stack:get_name()
|
||||
local item_count = item_stack:get_count()
|
||||
This function replicates the inv:add_item function but can accept
|
||||
multiple lists.
|
||||
|
||||
local leftover = ItemStack(item_stack)
|
||||
Arguments:
|
||||
inv: minetest inventory reference
|
||||
lists: names of inventory lists
|
||||
stack: minetest item stack
|
||||
--]]
|
||||
function unified_inventory.add_item(inv, lists, stack)
|
||||
local leftover = ItemStack(stack)
|
||||
|
||||
for i = 1, list_count do
|
||||
if skipped[i] == nil then
|
||||
local stack = inv:get_stack(list_name, i)
|
||||
|
||||
if stack:is_empty() then
|
||||
leftover = stack:add_item(leftover)
|
||||
inv:set_stack(list_name, i, stack)
|
||||
break
|
||||
end
|
||||
|
||||
local name = stack:get_name()
|
||||
|
||||
if name == item_name then
|
||||
leftover = stack:add_item(leftover)
|
||||
inv:set_stack(list_name, i, stack)
|
||||
end
|
||||
for i = 1, #lists do
|
||||
if leftover:is_empty() then
|
||||
break
|
||||
end
|
||||
|
||||
leftover = inv:add_item(lists[i], leftover)
|
||||
end
|
||||
|
||||
return leftover
|
||||
end
|
||||
|
||||
function unified_inventory.craftguide_match_craft(inv, src_list_name, dst_list_name, craft, amount)
|
||||
local src_list = inv:get_list(src_list_name)
|
||||
local dst_list = inv:get_list(dst_list_name)
|
||||
--[[
|
||||
Move matched items to the destination list.
|
||||
|
||||
local craft_match = unified_inventory.find_best_match(src_list, dst_list, craft)
|
||||
Note that function accepts multiple source lists and destination list
|
||||
can be one of the source lists.
|
||||
|
||||
if craft_match == nil then
|
||||
return
|
||||
end
|
||||
If destination list position is already occupied with some other item
|
||||
then function tries to move it to the source lists if possible.
|
||||
|
||||
local matched_items = craft_match.items
|
||||
local matched_count = craft_match.count
|
||||
Arguments:
|
||||
inv: minetest inventory reference
|
||||
src_lists: names of source lists
|
||||
dst_list: name of destination list
|
||||
match_table: table of matched items
|
||||
amount: amount of items per every position
|
||||
--]]
|
||||
function unified_inventory.move_match(inv, src_lists, dst_list, match_table, amount)
|
||||
for item, pos_set in pairs(match_table) do
|
||||
local stack_max = ItemStack(item):get_stack_max()
|
||||
local bounded_amount = math.min(stack_max, amount)
|
||||
local pos_count = 0;
|
||||
|
||||
if amount == -1 then
|
||||
amount = matched_count
|
||||
elseif amount > matched_count then
|
||||
return
|
||||
end
|
||||
for _ in pairs(pos_set) do
|
||||
pos_count = pos_count + 1
|
||||
end
|
||||
|
||||
-- Clear crafting grid (if possible)
|
||||
local dst_count = #dst_list
|
||||
local total = ItemStack{
|
||||
name = item,
|
||||
count = bounded_amount * pos_count
|
||||
}
|
||||
|
||||
for i = 1, dst_count do
|
||||
local dst_stack = inv:get_stack(dst_list_name, i)
|
||||
local leftover = inv:add_item(src_list_name, dst_stack)
|
||||
local removed = unified_inventory.remove_item(inv, src_lists, total)
|
||||
local current = ItemStack(removed)
|
||||
current:set_count(bounded_amount)
|
||||
|
||||
inv:set_stack(dst_list_name, i, leftover)
|
||||
end
|
||||
for pos in pairs(pos_set) do
|
||||
local occupied = inv:get_stack(dst_list, pos)
|
||||
inv:set_stack(dst_list, pos, current)
|
||||
|
||||
local skipped = {}
|
||||
if not occupied:is_empty() then
|
||||
local leftover = unified_inventory.add_item(inv, src_lists, occupied)
|
||||
|
||||
for match_pos = 1, dst_count do
|
||||
local item_name = matched_items[match_pos]
|
||||
|
||||
if item_name ~= nil then
|
||||
local matched_stack = ItemStack(item_name)
|
||||
matched_stack:set_count(amount)
|
||||
|
||||
local src_take = inv:remove_item(src_list_name, matched_stack)
|
||||
local src_take_count = src_take:get_count()
|
||||
local diff = amount - src_take_count
|
||||
|
||||
if diff > 0 then
|
||||
matched_stack:set_count(diff)
|
||||
|
||||
-- Because we take from dst_list we need to exclude already matched positions
|
||||
local dst_take = unified_inventory.take_item_skip(inv, dst_list_name, matched_stack, skipped)
|
||||
src_take:add_item(dst_take)
|
||||
end
|
||||
|
||||
local dst_stack = inv:get_stack(dst_list_name, match_pos)
|
||||
inv:set_stack(dst_list_name, match_pos, src_take)
|
||||
skipped[match_pos] = true
|
||||
|
||||
local src_leftover = inv:add_item(src_list_name, dst_stack)
|
||||
|
||||
if not src_leftover:is_empty() then
|
||||
-- Because we add to dst_list we need to exclude already matched positions
|
||||
local dst_leftover = unified_inventory.add_item_skip(inv, dst_list_name, src_leftover, skipped)
|
||||
|
||||
if not dst_leftover:is_empty() then
|
||||
-- Final try
|
||||
local dst_leftover_full = inv:add_item(dst_list_name, dst_leftover)
|
||||
|
||||
if not dst_leftover_full:is_empty() then
|
||||
inv:set_stack(dst_list_name, match_pos, dst_leftover_full)
|
||||
|
||||
local src_reverse = inv:add_item(src_list_name, src_take)
|
||||
|
||||
if not src_reverse:is_empty() then
|
||||
local dst_reverse = inv:add_item(dst_list_name, src_reverse)
|
||||
-- Can dst_reverse be not empty here?
|
||||
end
|
||||
|
||||
break
|
||||
end
|
||||
if not leftover:is_empty() then
|
||||
inv:set_stack(dst_list, pos, leftover)
|
||||
break
|
||||
end
|
||||
end
|
||||
|
||||
removed:take_item(bounded_amount)
|
||||
end
|
||||
|
||||
unified_inventory.add_item(inv, src_lists, removed)
|
||||
end
|
||||
end
|
||||
|
||||
--[[
|
||||
Find craft match and move matched items to the destination list.
|
||||
|
||||
If match cannot be found or match count is smaller than the desired
|
||||
amount then do nothing.
|
||||
|
||||
If amount passed is -1 then amount is defined by match count itself.
|
||||
This is used to indicate "craft All" case.
|
||||
|
||||
Note that function accepts multiple source lists.
|
||||
|
||||
Arguments:
|
||||
inv: minetest inventory reference
|
||||
src_lists: names of source lists
|
||||
dst_list: name of destination list
|
||||
craft: minetest craft recipe
|
||||
amount: desired amount of output items
|
||||
--]]
|
||||
function unified_inventory.craftguide_match_craft(inv, src_lists, dst_list, craft, amount)
|
||||
local counts = unified_inventory.count_items(inv, src_lists)
|
||||
local positions = unified_inventory.count_craft_positions(craft)
|
||||
local match_table, match_count = unified_inventory.match_items(counts, positions)
|
||||
|
||||
if match_table == nil or match_count < amount then
|
||||
return
|
||||
end
|
||||
|
||||
if amount == -1 then
|
||||
amount = match_count
|
||||
end
|
||||
|
||||
unified_inventory.move_match(inv, src_lists, dst_list, match_table, amount)
|
||||
end
|
||||
|
|
|
|||
|
|
@ -467,7 +467,7 @@ local function craftguide_craft(player, formname, fields)
|
|||
local craft = crafts[alternate]
|
||||
if craft.width > 3 then return end
|
||||
|
||||
unified_inventory.craftguide_match_craft(player_inv, "main", "craft", craft, amount)
|
||||
unified_inventory.craftguide_match_craft(player_inv, {"main", "craft"}, "craft", craft, amount)
|
||||
|
||||
unified_inventory.set_inventory_formspec(player, "craft")
|
||||
end
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user