minetest-i4/etc/common.lua
Jean-Patrick Guerrero 4fcf4f5790 Rename some variables
2021-11-01 15:34:10 +01:00

569 lines
11 KiB
Lua

local translate = core.get_translated_string
local insert, remove, sort, vec_add, vec_mul =
table.insert, table.remove, table.sort, vector.add, vector.mul
local fmt, find, gmatch, match, sub, split, lower =
string.format, string.find, string.gmatch, string.match, string.sub, string.split, string.lower
local reg_items, reg_nodes, reg_craftitems, reg_tools =
core.registered_items, core.registered_nodes, core.registered_craftitems, core.registered_tools
local S = core.get_translator "i3"
local ES = function(...) return core.formspec_escape(S(...)) end
local function is_num(x)
return type(x) == "number"
end
local function is_str(x)
return type(x) == "string"
end
local function is_table(x)
return type(x) == "table"
end
local function is_func(x)
return type(x) == "function"
end
local function true_str(str)
return is_str(str) and str ~= ""
end
local function true_table(x)
return is_table(x) and next(x)
end
local function reset_compression(data)
data.alt_items = nil
data.expand = ""
end
local function search(data)
reset_compression(data)
local filter = data.filter
local opt = "^(.-)%+([%w_]+)=([%w_,]+)"
local search_filter = next(i3.search_filters) and match(filter, opt)
local filters = {}
if search_filter then
search_filter = search_filter:trim()
for filter_name, values in gmatch(filter, sub(opt, 6)) do
if i3.search_filters[filter_name] then
values = split(values, ",")
filters[filter_name] = values
end
end
end
local filtered_list, c = {}, 0
for i = 1, #data.items_raw do
local item = data.items_raw[i]
local def = core.registered_items[item]
local desc = lower(translate(data.lang_code, def and def.description)) or ""
local search_in = fmt("%s %s", item, desc)
local temp, j, to_add = {}, 1
if search_filter then
for filter_name, values in pairs(filters) do
if values then
local func = i3.search_filters[filter_name]
to_add = (j > 1 and temp[item] or j == 1) and
func(item, values) and (search_filter == "" or
find(search_in, search_filter, 1, true))
if to_add then
temp[item] = true
end
j = j + 1
end
end
else
local ok = true
for keyword in gmatch(filter, "%S+") do
if not find(search_in, keyword, 1, true) then
ok = nil
break
end
end
if ok then
to_add = true
end
end
if to_add then
c = c + 1
filtered_list[c] = item
end
end
data.items = filtered_list
end
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_merge(t1, t2, hash)
t1 = t1 or {}
t2 = t2 or {}
if hash then
for k, v in pairs(t2) do
t1[k] = v
end
else
local c = #t1
for i = 1, #t2 do
c = c + 1
t1[c] = t2[i]
end
end
return t1
end
local function array_diff(t1, t2)
local hash = {}
for i = 1, #t1 do
local v = t1[i]
hash[v] = true
end
for i = 1, #t2 do
local v = t2[i]
hash[v] = nil
end
local diff, c = {}, 0
for i = 1, #t1 do
local v = t1[i]
if hash[v] then
c = c + 1
diff[c] = v
end
end
return diff
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 is_group(item)
return sub(item, 1, 6) == "group:"
end
local function extract_groups(str)
if sub(str, 1, 6) == "group:" then
return split(sub(str, 7), ",")
end
end
local function item_has_groups(item_groups, groups)
for i = 1, #groups do
local group = groups[i]
if (item_groups[group] or 0) == 0 then return end
end
return true
end
local function show_item(def)
return def and def.groups.not_in_creative_inventory ~= 1 and
def.description and def.description ~= ""
end
local function groups_to_items(groups, get_all)
if not get_all and #groups == 1 then
local group = groups[1]
local stereotype = i3.group_stereotypes[group]
local def = reg_items[stereotype]
if show_item(def) then
return stereotype
end
end
local names = {}
for name, def in pairs(reg_items) do
if show_item(def) and item_has_groups(def.groups, groups) then
if get_all then
names[#names + 1] = name
else
return name
end
end
end
return get_all and names or ""
end
local function apply_recipe_filters(recipes, player)
for _, filter in pairs(i3.recipe_filters) do
recipes = filter(recipes, player)
end
return recipes
end
local function compression_active(data)
return i3.item_compression and not next(i3.recipe_filters) and data.filter == ""
end
local function compressible(item, data)
return compression_active(data) and i3.compress_groups[item]
end
local function clean_name(item)
if sub(item, 1, 1) == ":" or sub(item, 1, 1) == " " or sub(item, 1, 1) == "_" then
item = sub(item, 2)
end
return item
end
local function msg(name, str)
return core.chat_send_player(name, fmt("[i3] %s", str))
end
local function err(str)
return core.log("error", str)
end
local function round(num, decimal)
local mul = 10 ^ decimal
return math.floor(num * mul + 0.5) / mul
end
local function is_fav(favs, query_item)
local fav, i
for j = 1, #favs do
if favs[j] == query_item then
fav = true
i = j
break
end
end
return fav, i
end
local function sort_by_category(data)
reset_compression(data)
local items = data.items_raw
if data.filter ~= "" then
search(data)
items = data.items
end
local new = {}
for i = 1, #items do
local item = items[i]
local to_add = true
if data.itab == 2 then
to_add = reg_nodes[item]
elseif data.itab == 3 then
to_add = reg_craftitems[item] or reg_tools[item]
end
if to_add then
new[#new + 1] = item
end
end
data.items = new
end
local function spawn_item(player, stack)
local dir = player:get_look_dir()
local ppos = player:get_pos()
ppos.y = ppos.y + 1.625
local look_at = vec_add(ppos, vec_mul(dir, 1))
core.add_item(look_at, stack)
end
local function name_sort(inv, reverse)
return sort(inv, function(a, b)
a, b = a:get_name(), b:get_name()
if reverse then
return a > b
end
return a < b
end)
end
local function count_sort(inv, reverse)
return sort(inv, function(a, b)
a, b = a:get_count(), b:get_count()
if reverse then
return a > b
end
return a < b
end)
end
local function get_sorting_idx(name)
local idx = 1
for i, def in ipairs(i3.sorting_methods) do
if name == def.name then
idx = i
end
end
return idx
end
local function apply_sort(inv, size, data, new_inv, start_i)
if not data.ignore_hotbar then
inv:set_list("main", new_inv)
return
end
for i = start_i, size do
local idx = i - start_i + 1
inv:set_stack("main", i, new_inv[idx] or "")
end
end
local function compress_items(list, start_i)
local new_inv, _new_inv, special = {}, {}, {}
for i = start_i, #list do
local stack = list[i]
local name = stack:get_name()
local count = stack:get_count()
local stackmax = stack:get_stack_max()
local empty = stack:is_empty()
local meta = stack:get_meta():to_table()
local wear = stack:get_wear() > 0
if not empty then
if next(meta.fields) or wear or count >= stackmax then
special[#special + 1] = stack
else
new_inv[name] = new_inv[name] or 0
new_inv[name] = new_inv[name] + count
end
end
end
for name, count in pairs(new_inv) do
local stackmax = ItemStack(name):get_stack_max()
local iter = math.ceil(count / stackmax)
local leftover = count
for _ = 1, iter do
_new_inv[#_new_inv + 1] = ItemStack(fmt("%s %u", name, math.min(stackmax, leftover)))
leftover = leftover - stackmax
end
end
for i = 1, #special do
_new_inv[#_new_inv + 1] = special[i]
end
return _new_inv
end
local function sort_inventory(player, data)
local inv = player:get_inventory()
local list = inv:get_list("main")
local size = inv:get_size("main")
local start_i = data.ignore_hotbar and 10 or 1
if data.inv_compress then
list = compress_items(list, start_i)
end
local sorts = {}
for _, def in ipairs(i3.sorting_methods) do
sorts[def.name] = def.func
end
local new_inv = sorts[data.sort](list, data)
if new_inv then
apply_sort(inv, size, data, new_inv, start_i)
end
end
-------------------------------------------------------------------------------
local _ = {
-- Groups
is_group = is_group,
extract_groups = extract_groups,
item_has_groups = item_has_groups,
groups_to_items = groups_to_items,
-- Compression
compressible = compressible,
compression_active = compression_active,
-- Sorting
search = search,
name_sort = name_sort,
count_sort = count_sort,
sort_inventory = sort_inventory,
get_sorting_idx = get_sorting_idx,
sort_by_category = sort_by_category,
apply_recipe_filters = apply_recipe_filters,
-- Misc. functions
err = err,
msg = msg,
is_fav = is_fav,
is_str = is_str,
is_num = is_num,
is_func = is_func,
show_item = show_item,
spawn_item = spawn_item,
true_str = true_str,
true_table = true_table,
clean_name = clean_name,
-- Core functions
clr = core.colorize,
slz = core.serialize,
dslz = core.deserialize,
ESC = core.formspec_escape,
check_privs = core.check_player_privs,
-- Registered items
reg_items = core.registered_items,
reg_nodes = core.registered_nodes,
reg_tools = core.registered_tools,
reg_aliases = core.registered_aliases,
reg_entities = core.registered_entities,
reg_craftitems = core.registered_craftitems,
-- i18n
S = S,
ES = ES,
translate = core.get_translated_string,
-- String
sub = string.sub,
find = string.find,
fmt = string.format,
upper = string.upper,
lower = string.lower,
split = string.split,
match = string.match,
gmatch = string.gmatch,
-- Table
maxn = table.maxn,
sort = table.sort,
copy = table.copy,
concat = table.concat,
insert = table.insert,
remove = table.remove,
indexof = table.indexof,
is_table = is_table,
table_eq = table_eq,
table_merge = table_merge,
table_replace = table_replace,
array_diff = array_diff,
-- Math
round = round,
min = math.min,
max = math.max,
ceil = math.ceil,
floor = math.floor,
random = math.random,
-- Vectors
vec_new = vector.new,
vec_add = vector.add,
vec_round = vector.round,
vec_eq = vector.equals,
vec_mul = vector.multiply,
}
function i3.get(...)
local t = {}
for i, var in ipairs{...} do
t[i] = _[var]
end
return unpack(t)
end