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-rw-r--r--autocrafter.lua124
1 files changed, 69 insertions, 55 deletions
diff --git a/autocrafter.lua b/autocrafter.lua
index ad32065..a60b0d8 100644
--- a/autocrafter.lua
+++ b/autocrafter.lua
@@ -1,11 +1,12 @@
local autocrafterCache = {} -- caches some recipe data to avoid to call the slow function minetest.get_craft_result() every second
-local function make_inventory_cache(invlist)
- local l = {}
+local function count_index(invlist)
+ local index = {}
for _, stack in ipairs(invlist) do
- l[stack:get_name()] = (l[stack:get_name()] or 0) + stack:get_count()
+ local stack_name = stack:get_name()
+ index[stack_name] = (index[stack_name] or 0) + stack:get_count()
end
- return l
+ return index
end
local function get_cached_craft(pos)
@@ -13,71 +14,36 @@ local function get_cached_craft(pos)
return hash, autocrafterCache[hash]
end
-local function autocraft(inventory, pos)
+-- note, that this function assumes allready being updated to virtual items
+-- and doesn't handle recipes with stacksizes > 1
+local function on_recipe_change(pos, inventory)
if not inventory then return end
local recipe = inventory:get_list("recipe")
if not recipe then return end
- local cached_recipe
- local output
- local decremented_input
+ local recipe_changed = false
local hash, craft = get_cached_craft(pos)
- if craft == nil then
- cached_recipe = {}
- for i = 1, 9 do
- cached_recipe[i] = recipe[i]
- recipe[i] = ItemStack({name = recipe[i]:get_name(), count = 1})
- end
- output, decremented_input = minetest.get_craft_result({method = "normal", width = 3, items = recipe})
- autocrafterCache[hash] = {recipe = recipe, output = output, decremented_input = decremented_input}
+
+ if not craft then
+ recipe_changed = true
else
- cached_recipe, output, decremented_input = craft.recipe, craft.output, craft.decremented_input
- local recipe_changed = false
+ -- check if it changed
+ local cached_recipe = craft.recipe
for i = 1, 9 do
- local recipe_entry, cached_recipe_entry = recipe[i], cached_recipe[i]
- if recipe_entry:get_name() ~= cached_recipe_entry:get_name()
- or recipe_entry:get_count() ~= cached_recipe_entry:get_count() then
+ if recipe[i]:get_name() ~= cached_recipe[i]:get_name() then
recipe_changed = true
break
end
end
- if recipe_changed then
- for i = 1, 9 do
- cached_recipe[i] = recipe[i]
- recipe[i] = ItemStack({name = recipe[i]:get_name(), count = 1})
- end
- output, decremented_input = minetest.get_craft_result({method = "normal", width = 3, items = recipe})
- autocrafterCache[hash] = {recipe = recipe, output = output, decremented_input = decremented_input}
- end
end
- if output.item:is_empty() then return end
- output = output.item
- if not inventory:room_for_item("dst", output) then return end
- local to_use = {}
- for _, item in ipairs(recipe) do
- if item~= nil and not item:is_empty() then
- local item_name = item:get_name()
- if to_use[item_name] == nil then
- to_use[item_name] = 1
- else
- to_use[item_name] = to_use[item_name]+1
- end
- end
- end
- local invcache = make_inventory_cache(inventory:get_list("src"))
- for itemname, number in pairs(to_use) do
- if (not invcache[itemname]) or invcache[itemname] < number then return end
- end
- for itemname, number in pairs(to_use) do
- for i = 1, number do -- We have to do that since remove_item does not work if count > stack_max
- inventory:remove_item("src", ItemStack(itemname))
- end
- end
- inventory:add_item("dst", output)
- for i = 1, 9 do
- inventory:add_item("dst", decremented_input.items[i])
+ if recipe_changed then
+ local output, decremented_input = minetest.get_craft_result({method = "normal", width = 3, items = recipe})
+ craft = {recipe = recipe, output = output, decremented_input = decremented_input}
+ autocrafterCache[hash] = craft
end
+
+ return craft
end
local function update_autocrafter(pos)
@@ -91,6 +57,50 @@ local function update_autocrafter(pos)
stack:set_wear(0)
inv:set_stack("recipe", idx, stack)
end
+ on_recipe_change(pos, inv)
+ end
+end
+
+local function autocraft(inventory, pos)
+ if not inventory then return end
+ local recipe = inventory:get_list("recipe")
+ if not recipe then return end
+
+ local hash, craft = get_cached_craft(pos)
+ if craft == nil then
+ update_autocrafter(pos) -- only does some unnecessary calls for "old" autocrafters
+ craft = on_recipe_change(pos, inventory)
+ end
+
+ local output_item = craft.output.item
+ if output_item:is_empty() or not inventory:room_for_item("dst", output_item) then return end
+
+ -- determine how much we have to consume each craft
+ local consumption = {}
+ for _, item in ipairs(recipe) do
+ if item and not item:is_empty() then
+ local item_name = item:get_name()
+ consumption[item_name] = (consumption[item_name] or 0) + 1
+ end
+ end
+
+ local inv_index = count_index(inventory:get_list("src"))
+ -- check if we have enough materials available
+ for itemname, number in pairs(consumption) do
+ if (not inv_index[itemname]) or inv_index[itemname] < number then return end
+ end
+
+ -- consume materials
+ for itemname, number in pairs(consumption) do
+ for i = 1, number do -- We have to do that since remove_item does not work if count > stack_max
+ inventory:remove_item("src", ItemStack(itemname))
+ end
+ end
+
+ -- craft the result into the dst inventory and add any "replacements" as well
+ inventory:add_item("dst", output_item)
+ for i = 1, 9 do
+ inventory:add_item("dst", craft.decremented_input.items[i])
end
end
@@ -147,6 +157,7 @@ minetest.register_node("pipeworks:autocrafter", {
local stack_copy = ItemStack(stack)
stack_copy:set_count(1)
inv:set_stack(listname, index, stack_copy)
+ on_recipe_change(pos, inv)
return 0
else
return stack:get_count()
@@ -157,6 +168,7 @@ minetest.register_node("pipeworks:autocrafter", {
local inv = minetest.get_meta(pos):get_inventory()
if listname == "recipe" then
inv:set_stack(listname, index, ItemStack(""))
+ on_recipe_change(pos, inv)
return 0
else
return stack:get_count()
@@ -169,11 +181,13 @@ minetest.register_node("pipeworks:autocrafter", {
stack:set_count(count)
if from_list == "recipe" then
inv:set_stack(from_list, from_index, ItemStack(""))
+ on_recipe_change(pos, inv)
return 0
elseif to_list == "recipe" then
local stack_copy = ItemStack(stack)
stack_copy:set_count(1)
inv:set_stack(to_list, to_index, stack_copy)
+ on_recipe_change(pos, inv)
return 0
else
return stack:get_count()