forked from mtcontrib/pipeworks
remove unnecessary looping and testing, since we only check and update the cache if there was actually a reason to assume a recipe change
This commit is contained in:
Tim
parent
827d049789
commit
cee16932be
126
autocrafter.lua
126
autocrafter.lua
@ -1,11 +1,12 @@
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local autocrafterCache = {} -- caches some recipe data to avoid to call the slow function minetest.get_craft_result() every second
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local function make_inventory_cache(invlist)
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local l = {}
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local function count_index(invlist)
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local index = {}
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for _, stack in ipairs(invlist) do
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l[stack:get_name()] = (l[stack:get_name()] or 0) + stack:get_count()
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local stack_name = stack:get_name()
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index[stack_name] = (index[stack_name] or 0) + stack:get_count()
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end
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return l
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return index
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end
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local function get_cached_craft(pos)
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@ -13,71 +14,36 @@ local function get_cached_craft(pos)
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return hash, autocrafterCache[hash]
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end
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local function autocraft(inventory, pos)
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-- note, that this function assumes allready being updated to virtual items
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-- and doesn't handle recipes with stacksizes > 1
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local function on_recipe_change(pos, inventory)
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if not inventory then return end
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local recipe = inventory:get_list("recipe")
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if not recipe then return end
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local cached_recipe
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local output
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local decremented_input
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local hash, craft = get_cached_craft(pos)
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if craft == nil then
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cached_recipe = {}
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for i = 1, 9 do
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cached_recipe[i] = recipe[i]
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recipe[i] = ItemStack({name = recipe[i]:get_name(), count = 1})
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end
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output, decremented_input = minetest.get_craft_result({method = "normal", width = 3, items = recipe})
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autocrafterCache[hash] = {recipe = recipe, output = output, decremented_input = decremented_input}
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else
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cached_recipe, output, decremented_input = craft.recipe, craft.output, craft.decremented_input
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local recipe_changed = false
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local hash, craft = get_cached_craft(pos)
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if not craft then
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recipe_changed = true
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else
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-- check if it changed
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local cached_recipe = craft.recipe
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for i = 1, 9 do
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local recipe_entry, cached_recipe_entry = recipe[i], cached_recipe[i]
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if recipe_entry:get_name() ~= cached_recipe_entry:get_name()
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or recipe_entry:get_count() ~= cached_recipe_entry:get_count() then
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if recipe[i]:get_name() ~= cached_recipe[i]:get_name() then
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recipe_changed = true
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break
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end
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end
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if recipe_changed then
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for i = 1, 9 do
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cached_recipe[i] = recipe[i]
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recipe[i] = ItemStack({name = recipe[i]:get_name(), count = 1})
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end
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output, decremented_input = minetest.get_craft_result({method = "normal", width = 3, items = recipe})
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autocrafterCache[hash] = {recipe = recipe, output = output, decremented_input = decremented_input}
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end
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end
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if output.item:is_empty() then return end
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output = output.item
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if not inventory:room_for_item("dst", output) then return end
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local to_use = {}
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for _, item in ipairs(recipe) do
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if item~= nil and not item:is_empty() then
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local item_name = item:get_name()
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if to_use[item_name] == nil then
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to_use[item_name] = 1
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else
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to_use[item_name] = to_use[item_name]+1
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end
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end
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end
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local invcache = make_inventory_cache(inventory:get_list("src"))
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for itemname, number in pairs(to_use) do
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if (not invcache[itemname]) or invcache[itemname] < number then return end
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end
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for itemname, number in pairs(to_use) do
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for i = 1, number do -- We have to do that since remove_item does not work if count > stack_max
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inventory:remove_item("src", ItemStack(itemname))
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end
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end
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inventory:add_item("dst", output)
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for i = 1, 9 do
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inventory:add_item("dst", decremented_input.items[i])
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if recipe_changed then
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local output, decremented_input = minetest.get_craft_result({method = "normal", width = 3, items = recipe})
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craft = {recipe = recipe, output = output, decremented_input = decremented_input}
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autocrafterCache[hash] = craft
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end
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return craft
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end
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local function update_autocrafter(pos)
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@ -91,6 +57,50 @@ local function update_autocrafter(pos)
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stack:set_wear(0)
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inv:set_stack("recipe", idx, stack)
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end
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on_recipe_change(pos, inv)
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end
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end
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local function autocraft(inventory, pos)
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if not inventory then return end
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local recipe = inventory:get_list("recipe")
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if not recipe then return end
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local hash, craft = get_cached_craft(pos)
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if craft == nil then
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update_autocrafter(pos) -- only does some unnecessary calls for "old" autocrafters
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craft = on_recipe_change(pos, inventory)
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end
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local output_item = craft.output.item
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if output_item:is_empty() or not inventory:room_for_item("dst", output_item) then return end
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-- determine how much we have to consume each craft
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local consumption = {}
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for _, item in ipairs(recipe) do
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if item and not item:is_empty() then
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local item_name = item:get_name()
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consumption[item_name] = (consumption[item_name] or 0) + 1
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end
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end
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local inv_index = count_index(inventory:get_list("src"))
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-- check if we have enough materials available
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for itemname, number in pairs(consumption) do
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if (not inv_index[itemname]) or inv_index[itemname] < number then return end
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end
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-- consume materials
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for itemname, number in pairs(consumption) do
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for i = 1, number do -- We have to do that since remove_item does not work if count > stack_max
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inventory:remove_item("src", ItemStack(itemname))
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end
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end
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-- craft the result into the dst inventory and add any "replacements" as well
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inventory:add_item("dst", output_item)
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for i = 1, 9 do
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inventory:add_item("dst", craft.decremented_input.items[i])
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end
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end
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@ -147,6 +157,7 @@ minetest.register_node("pipeworks:autocrafter", {
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local stack_copy = ItemStack(stack)
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stack_copy:set_count(1)
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inv:set_stack(listname, index, stack_copy)
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on_recipe_change(pos, inv)
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return 0
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else
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return stack:get_count()
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@ -157,6 +168,7 @@ minetest.register_node("pipeworks:autocrafter", {
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local inv = minetest.get_meta(pos):get_inventory()
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if listname == "recipe" then
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inv:set_stack(listname, index, ItemStack(""))
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on_recipe_change(pos, inv)
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return 0
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else
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return stack:get_count()
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@ -169,11 +181,13 @@ minetest.register_node("pipeworks:autocrafter", {
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stack:set_count(count)
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if from_list == "recipe" then
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inv:set_stack(from_list, from_index, ItemStack(""))
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on_recipe_change(pos, inv)
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return 0
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elseif to_list == "recipe" then
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local stack_copy = ItemStack(stack)
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stack_copy:set_count(1)
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inv:set_stack(to_list, to_index, stack_copy)
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on_recipe_change(pos, inv)
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return 0
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else
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return stack:get_count()
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