i3/etc/recipes.lua

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local replacements = {fuel = {}}
local fmt, match = i3.need("fmt", "match")
local reg_items, reg_aliases = i3.need("reg_items", "reg_aliases")
local maxn, copy, insert, remove = i3.need("maxn", "copy", "insert", "remove")
local true_str, is_table, show_item, table_merge = i3.need("true_str", "is_table", "show_item", "table_merge")
local is_group, extract_groups, item_has_groups, groups_to_items =
i3.need("is_group", "extract_groups", "item_has_groups", "groups_to_items")
local function table_replace(t, val, new)
for k, v in pairs(t) do
if v == val then
t[k] = new
end
end
end
local function table_eq(T1, T2)
local avoid_loops = {}
local function recurse(t1, t2)
if type(t1) ~= type(t2) then return end
if not is_table(t1) then
return t1 == t2
end
if avoid_loops[t1] then
return avoid_loops[t1] == t2
end
avoid_loops[t1] = t2
local t2k, t2kv = {}, {}
for k in pairs(t2) do
if is_table(k) then
insert(t2kv, k)
end
t2k[k] = true
end
for k1, v1 in pairs(t1) do
local v2 = t2[k1]
if type(k1) == "table" then
local ok
for i = 1, #t2kv do
local tk = t2kv[i]
if table_eq(k1, tk) and recurse(v1, t2[tk]) then
remove(t2kv, i)
t2k[tk] = nil
ok = true
break
end
end
if not ok then return end
else
if v2 == nil then return end
t2k[k1] = nil
if not recurse(v1, v2) then return end
end
end
if next(t2k) then return end
return true
end
return recurse(T1, T2)
end
local function get_burntime(item)
return core.get_craft_result{method = "fuel", items = {item}}.time
end
local function cache_fuel(item)
local burntime = get_burntime(item)
if burntime > 0 then
i3.fuel_cache[item] = {
type = "fuel",
items = {item},
burntime = burntime,
replacements = replacements.fuel[item],
}
end
end
local function get_item_usages(item, recipe, added)
local groups = extract_groups(item)
if groups then
for name, def in pairs(reg_items) do
if not added[name] and show_item(def) and item_has_groups(def.groups, groups) then
local usage = copy(recipe)
table_replace(usage.items, item, name)
i3.usages_cache[name] = i3.usages_cache[name] or {}
insert(i3.usages_cache[name], 1, usage)
added[name] = true
end
end
elseif show_item(reg_items[item]) then
i3.usages_cache[item] = i3.usages_cache[item] or {}
insert(i3.usages_cache[item], 1, recipe)
end
end
local function get_usages(recipe)
local added = {}
for _, item in pairs(recipe.items) do
item = reg_aliases[item] or item
if not added[item] then
get_item_usages(item, recipe, added)
added[item] = true
end
end
end
local function cache_usages(item)
local recipes = i3.recipes_cache[item] or {}
for i = 1, #recipes do
get_usages(recipes[i])
end
if i3.fuel_cache[item] then
i3.usages_cache[item] = table_merge(i3.usages_cache[item] or {}, {i3.fuel_cache[item]})
end
end
local function drop_table(name, drop)
local count_sure = 0
local drop_items = drop.items or {}
local max_items = drop.max_items
for i = 1, #drop_items do
local di = drop_items[i]
local valid_rarity = di.rarity and di.rarity > 1
if di.rarity or not max_items or
(max_items and not di.rarity and count_sure < max_items) then
for j = 1, #di.items do
local dstack = ItemStack(di.items[j])
local dname = dstack:get_name()
local dcount = dstack:get_count()
local empty = dstack:is_empty()
if not empty and (dname ~= name or (dname == name and dcount > 1)) then
local rarity = valid_rarity and di.rarity
i3.register_craft {
type = rarity and "digging_chance" or "digging",
items = {name},
output = fmt("%s %u", dname, dcount),
rarity = rarity,
tools = di.tools,
}
end
end
end
if not di.rarity then
count_sure = count_sure + 1
end
end
end
local function cache_drops(name, drop)
if true_str(drop) then
local dstack = ItemStack(drop)
local dname = dstack:get_name()
local empty = dstack:is_empty()
if not empty and dname ~= name then
i3.register_craft {
type = "digging",
items = {name},
output = drop,
}
end
elseif is_table(drop) then
drop_table(name, drop)
end
end
local function cache_recipes(item)
local recipes = core.get_all_craft_recipes(item)
if replacements[item] then
local _recipes = {}
for k, v in ipairs(recipes or {}) do
_recipes[#recipes + 1 - k] = v
end
local shift = 0
local size_rpl = maxn(replacements[item])
local size_rcp = #_recipes
if size_rpl > size_rcp then
shift = size_rcp - size_rpl
end
for k, v in pairs(replacements[item]) do
k = k + shift
if _recipes[k] then
_recipes[k].replacements = v
end
end
recipes = _recipes
end
if recipes then
i3.recipes_cache[item] = table_merge(recipes, i3.recipes_cache[item] or {})
end
end
--[[ As `core.get_craft_recipe` and `core.get_all_craft_recipes` do not
return the fuel, replacements and toolrepair recipes, we have to
override `core.register_craft` and do some reverse engineering.
See engine's issues #4901, #5745 and #8920. ]]
local old_register_craft = core.register_craft
local rcp_num = {}
core.register_craft = function(def)
old_register_craft(def)
if def.type == "toolrepair" then
i3.toolrepair = def.additional_wear * -100
end
local output = def.output or (true_str(def.recipe) and def.recipe) or nil
if not output then return end
output = {match(output, "%S+")}
local groups
if is_group(output[1]) then
groups = extract_groups(output[1])
output = groups_to_items(groups, true)
end
for i = 1, #output do
local item = output[i]
rcp_num[item] = (rcp_num[item] or 0) + 1
if def.replacements then
if def.type == "fuel" then
replacements.fuel[item] = def.replacements
else
replacements[item] = replacements[item] or {}
replacements[item][rcp_num[item]] = def.replacements
end
end
end
end
local old_clear_craft = core.clear_craft
core.clear_craft = function(def)
old_clear_craft(def)
if true_str(def) then
return -- TODO
elseif is_table(def) then
return -- TODO
end
end
local function resolve_aliases(hash)
for oldname, newname in pairs(reg_aliases) do
cache_recipes(oldname)
local recipes = i3.recipes_cache[oldname]
if recipes then
if not i3.recipes_cache[newname] then
i3.recipes_cache[newname] = {}
end
local similar
for i = 1, #i3.recipes_cache[oldname] do
local rcp_old = i3.recipes_cache[oldname][i]
for j = 1, #i3.recipes_cache[newname] do
local rcp_new = copy(i3.recipes_cache[newname][j])
rcp_new.output = oldname
if table_eq(rcp_old, rcp_new) then
similar = true
break
end
end
if not similar then
insert(i3.recipes_cache[newname], rcp_old)
end
end
end
if newname ~= "" and i3.recipes_cache[oldname] and not hash[newname] then
i3.init_items[#i3.init_items + 1] = newname
end
end
end
return cache_drops, cache_fuel, cache_recipes, cache_usages, resolve_aliases