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alternate solution using sandbox inventory

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see #61 and #69

fixes #61
This commit is contained in:
Luke aka SwissalpS 2023-06-11 15:10:12 +02:00
parent a7e35cd327
commit 459d59649f
1 changed files with 13 additions and 30 deletions
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45
autocrafter.lua
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@ -1,6 +1,7 @@
local S = minetest.get_translator("pipeworks")
local autocrafterCache = {} -- caches some recipe data to avoid to call the slow function minetest.get_craft_result() every second
local sandbox_inv = minetest.create_detached_inventory("pipeworks:autocrafter_sandbox")
sandbox_inv:set_size("", 4 * 3)
local craft_time = 1
local function count_index(invlist)
@ -48,43 +49,25 @@ local function autocraft(inventory, craft)
if (not inv_index[itemname]) or inv_index[itemname] < number then return false end
end
-- since there is no inv:room_for_items() method, we use history/undo system
-- since there is no inv:room_for_items() method, we use a sandbox inventory
-- see: https://github.com/mt-mods/pipeworks/issues/61
-- keep track of stacks we add to dst inventory
local history = { output_item }
-- add the result into the dst inventory
inventory:add_item("dst", output_item)
-- add any "replacements" as well and keep track of what didn't fit
local leftover, replacement, undo, diff
sandbox_inv:set_list("", inventory:get_list("dst"))
-- we checked if this fits, so go ahead
sandbox_inv:add_item("", output_item)
-- now try to add replacements
local replacement
for i = 1, 9 do
replacement = craft.decremented_input.items[i]
if not replacement:is_empty() then
leftover = inventory:add_item("dst", replacement)
if not leftover:is_empty() then
-- hold up, there isn't room, we need to undo
undo = true
-- adjust count (mostly is just 1) so diff will mostly be 0
diff = replacement:get_count() - leftover:get_count()
-- make a copy with adjusted count
replacement = ItemStack(replacement)
replacement:set_count(diff)
end
-- add to history what had fit
table.insert(history, replacement)
-- if not all fit, let's not make it worse
if undo then break end
end
end
if undo then
-- we need to remove what we put in dst
for _, stack in ipairs(history) do
inventory:remove_item("dst", stack)
end
if not sandbox_inv:room_for_item("", replacement) then
return false
end
sandbox_inv:add_item("", replacement)
end
end
-- success, so apply to actual output inventory
inventory:set_list("dst", sandbox_inv:get_list(""))
-- consume materials
for itemname, number in pairs(consumption) do
for _ = 1, number do -- We have to do that since remove_item does not work if count > stack_max