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MineClone2/mods/HELP/mcl_craftguide/init.lua

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mcl_craftguide = {}
local M = minetest
local player_data = {}
-- Caches
local init_items = {}
local searches = {}
local recipes_cache = {}
local usages_cache = {}
local fuel_cache = {}
local progressive_mode = M.settings:get_bool("mcl_craftguide_progressive_mode") or true
local sfinv_only = false
local colorize = M.colorize
local reg_items = M.registered_items
local get_result = M.get_craft_result
local show_formspec = M.show_formspec
local get_player_by_name = M.get_player_by_name
local serialize, deserialize = M.serialize, M.deserialize
local ESC = M.formspec_escape
local S = M.get_translator("mcl_craftguide")
local maxn, sort, concat, insert, copy =
table.maxn, table.sort, table.concat, table.insert,
table.copy
local fmt, find, gmatch, match, sub, split, lower =
string.format, string.find, string.gmatch, string.match,
string.sub, string.split, string.lower
local min, max, floor, ceil = math.min, math.max, math.floor, math.ceil
local pairs, next, unpack = pairs, next, unpack
local vec_add, vec_mul = vector.add, vector.multiply
local DEFAULT_SIZE = 10
local MIN_LIMIT, MAX_LIMIT = 10, 12
DEFAULT_SIZE = min(MAX_LIMIT, max(MIN_LIMIT, DEFAULT_SIZE))
local GRID_LIMIT = 5
local POLL_FREQ = 0.25
local FMT = {
box = "box[%f,%f;%f,%f;%s]",
label = "label[%f,%f;%s]",
image = "image[%f,%f;%f,%f;%s]",
button = "button[%f,%f;%f,%f;%s;%s]",
tooltip = "tooltip[%s;%s]",
item_image = "item_image[%f,%f;%f,%f;%s]",
image_button = "image_button[%f,%f;%f,%f;%s;%s;%s]",
item_image_button = "item_image_button[%f,%f;%f,%f;%s;%s;%s]",
}
local group_stereotypes = {
wood = "mcl_core:wood",
stone = "mcl_core:stone",
sand = "mcl_core:sand",
wool = "mcl_wool:white",
carpet = "mcl_wool:white_carpet",
dye = "mcl_dye:red",
water_bucket = "mcl_buckets:bucket_water",
flower = "mcl_flowers:dandelion",
mushroom = "mcl_mushrooms:mushroom_brown",
wood_slab = "mcl_stairs:slab_wood",
wood_stairs = "mcl_stairs:stairs_wood",
coal = "mcl_core:coal_lump",
shulker_box = "mcl_chests:violet_shulker_box",
quartz_block = "mcl_nether:quartz_block",
banner = "mcl_banners:banner_item_white",
mesecon_conductor_craftable = "mesecons:wire_00000000_off",
purpur_block = "mcl_end:purpur_block",
normal_sandstone = "mcl_core:sandstone",
red_sandstone = "mcl_core:redsandstone",
compass = mcl_compass.stereotype,
clock = mcl_clock.sterotype,
}
local group_names = {
shulker_box = S("Any shulker box"),
wool = S("Any wool"),
wood = S("Any wood planks"),
tree = S("Any wood"),
sand = S("Any sand"),
normal_sandstone = S("Any normal sandstone"),
red_sandstone = S("Any red sandstone"),
carpet = S("Any carpet"),
dye = S("Any dye"),
water_bucket = S("Any water bucket"),
flower = S("Any flower"),
mushroom = S("Any mushroom"),
wood_slab = S("Any wooden slab"),
wood_stairs = S("Any wooden stairs"),
coal = S("Any coal"),
quartz_block = S("Any kind of quartz block"),
purpur_block = S("Any kind of purpur block"),
stonebrick = S("Any stone bricks"),
stick = S("Any stick"),
}
local item_lists = {
"main",
"craft",
"craftpreview",
}
local function table_merge(t, t2)
t, t2 = t or {}, t2 or {}
local c = #t
for i = 1, #t2 do
c = c + 1
t[c] = t2[i]
end
return t
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_diff(t, t2)
local hash = {}
for i = 1, #t do
local v = t[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, #t do
local v = t[i]
if hash[v] then
c = c + 1
diff[c] = v
end
end
return diff
end
local custom_crafts, craft_types = {}, {}
function mcl_craftguide.register_craft_type(name, def)
local func = "mcl_craftguide.register_craft_guide(): "
assert(name, func .. "'name' field missing")
assert(def.description, func .. "'description' field missing")
assert(def.icon, func .. "'icon' field missing")
craft_types[name] = def
end
function mcl_craftguide.register_craft(def)
local func = "mcl_craftguide.register_craft(): "
assert(def.type, func .. "'type' field missing")
assert(def.width, func .. "'width' field missing")
assert(def.output, func .. "'output' field missing")
assert(def.items, func .. "'items' field missing")
custom_crafts[#custom_crafts + 1] = def
end
local recipe_filters = {}
function mcl_craftguide.add_recipe_filter(name, f)
local func = "mcl_craftguide.add_recipe_filter(): "
assert(name, func .. "filter name missing")
assert(f and type(f) == "function", func .. "filter function missing")
recipe_filters[name] = f
end
function mcl_craftguide.remove_recipe_filter(name)
recipe_filters[name] = nil
end
function mcl_craftguide.set_recipe_filter(name, f)
local func = "mcl_craftguide.set_recipe_filter(): "
assert(name, func .. "filter name missing")
assert(f and type(f) == "function", func .. "filter function missing")
recipe_filters = {[name] = f}
end
function mcl_craftguide.get_recipe_filters()
return recipe_filters
end
local function apply_recipe_filters(recipes, player)
for _, filter in pairs(recipe_filters) do
recipes = filter(recipes, player)
end
return recipes
end
local search_filters = {}
function mcl_craftguide.add_search_filter(name, f)
local func = "mcl_craftguide.add_search_filter(): "
assert(name, func .. "filter name missing")
assert(f and type(f) == "function", func .. "filter function missing")
search_filters[name] = f
end
function mcl_craftguide.remove_search_filter(name)
search_filters[name] = nil
end
function mcl_craftguide.get_search_filters()
return search_filters
end
local formspec_elements = {}
function mcl_craftguide.add_formspec_element(name, def)
local func = "mcl_craftguide.add_formspec_element(): "
assert(def.element, func .. "'element' field not defined")
assert(def.type, func .. "'type' field not defined")
assert(FMT[def.type], func .. "'" .. def.type .. "' type not supported by the API")
formspec_elements[name] = {
type = def.type,
element = def.element,
action = def.action,
}
end
function mcl_craftguide.remove_formspec_element(name)
formspec_elements[name] = nil
end
function mcl_craftguide.get_formspec_elements()
return formspec_elements
end
local function item_has_groups(item_groups, groups)
for i = 1, #groups do
local group = groups[i]
if not item_groups[group] then
return
end
end
return true
end
local function extract_groups(str)
return split(sub(str, 7), ",")
end
local function item_in_recipe(item, recipe)
for _, recipe_item in pairs(recipe.items) do
if recipe_item == item then
return true
end
end
end
local function groups_item_in_recipe(item, recipe)
local item_groups = reg_items[item].groups
for _, recipe_item in pairs(recipe.items) do
if sub(recipe_item, 1, 6) == "group:" then
local groups = extract_groups(recipe_item)
if item_has_groups(item_groups, groups) then
local usage = copy(recipe)
table_replace(usage.items, recipe_item, item)
return usage
end
end
end
end
local function get_item_usages(item)
local usages, c = {}, 0
for _, recipes in pairs(recipes_cache) do
for i = 1, #recipes do
local recipe = recipes[i]
if item_in_recipe(item, recipe) then
c = c + 1
usages[c] = recipe
else
recipe = groups_item_in_recipe(item, recipe)
if recipe then
c = c + 1
usages[c] = recipe
end
end
end
end
if fuel_cache[item] then
usages[#usages + 1] = {type = "fuel", width = 1, items = {item}}
end
return usages
end
local function get_filtered_items(player)
local items, c = {}, 0
for i = 1, #init_items do
local item = init_items[i]
local recipes = recipes_cache[item]
local usages = usages_cache[item]
if recipes and #apply_recipe_filters(recipes, player) > 0 or
usages and #apply_recipe_filters(usages, player) > 0 then
c = c + 1
items[c] = item
end
end
return items
end
local function cache_recipes(output)
local recipes = M.get_all_craft_recipes(output) or {}
local c = 0
for i = 1, #custom_crafts do
local custom_craft = custom_crafts[i]
if match(custom_craft.output, "%S*") == output then
c = c + 1
recipes[c] = custom_craft
end
end
if #recipes > 0 then
recipes_cache[output] = recipes
return true
end
end
local function get_recipes(item, data, player)
local recipes = recipes_cache[item]
local usages = usages_cache[item]
if recipes then
recipes = apply_recipe_filters(recipes, player)
end
local no_recipes = not recipes or #recipes == 0
if no_recipes and not usages then
return
elseif usages and no_recipes then
data.show_usages = true
end
if data.show_usages then
recipes = apply_recipe_filters(usages_cache[item], player)
if #recipes == 0 then
return
end
end
return recipes
end
local function get_burntime(item)
return get_result({method = "fuel", width = 1, items = {item}}).time
end
local function cache_fuel(item)
local burntime = get_burntime(item)
if burntime > 0 then
fuel_cache[item] = burntime
return true
end
end
local function groups_to_item(groups)
if #groups == 1 then
local group = groups[1]
local def_gr = "mcl_core:" .. group
if group_stereotypes[group] then
return group_stereotypes[group]
elseif reg_items[def_gr] then
return def_gr
end
end
for name, def in pairs(reg_items) do
if item_has_groups(def.groups, groups) then
return name
end
end
return ""
end
local function get_tooltip(item, groups, cooktime, burntime)
local tooltip
if groups then
local gcol = "#FFAAFF"
if #groups == 1 then
local g = group_names[groups[1]]
-- Treat the groups “compass” and “clock” as fake groups
-- and just print the normal item name without special formatting
if groups[1] == "compass" or groups[1] == "clock" then
groupstr = reg_items[item].description
elseif group_names[groups[1]] then
-- Use the special group name string
groupstr = minetest.colorize(gcol, group_names[groups[1]])
else
--[[ Fallback: Generic group explanation: This always
works, but the internally used group name (which
looks ugly) is exposed to the user. ]]
groupstr = minetest.colorize(gcol, groups[1])
groupstr = S("Any item belonging to the @1 group", groupstr)
end
tooltip = groupstr
else
local groupstr, c = {}, 0
for i = 1, #groups do
c = c + 1
groupstr[c] = colorize(gcol, groups[i])
end
groupstr = concat(groupstr, ", ")
tooltip = S("Any item belonging to the groups: @1", groupstr)
end
else
tooltip = reg_items[item].description
end
if cooktime then
tooltip = tooltip .. "\n" ..
S("Cooking time: @1", colorize("yellow", cooktime))
end
if burntime then
tooltip = tooltip .. "\n" ..
S("Burning time: @1", colorize("yellow", burntime))
end
return fmt(FMT.tooltip, item, ESC(tooltip))
end
local function get_recipe_fs(data, iY)
local fs = {}
local recipe = data.recipes[data.rnum]
local width = recipe.width
local xoffset = data.iX / 2.15
local cooktime, shapeless
if recipe.type == "cooking" then
cooktime, width = width, 1
elseif width == 0 then
shapeless = true
if #recipe.items <= 4 then
width = 2
else
width = min(3, #recipe.items)
end
end
local rows = ceil(maxn(recipe.items) / width)
local rightest, btn_size, s_btn_size = 0, 1.1
local btn_lab = data.show_usages and
ESC(S("Usage @1 of @2", data.rnum, #data.recipes)) or
ESC(S("Recipe @1 of @2", data.rnum, #data.recipes))
fs[#fs + 1] = fmt(FMT.button,
sfinv_only and 5.8 or data.iX - 2.6,
sfinv_only and 7.9 or iY + 3.3,
2.2,
1,
"alternate",
btn_lab)
if width > GRID_LIMIT or rows > GRID_LIMIT then
fs[#fs + 1] = fmt(FMT.label,
(data.iX / 2) - 2,
iY + 2.2,
ESC(S("Recipe is too big to be displayed (@1×@2)", width, rows)))
return concat(fs)
end
for i, item in pairs(recipe.items) do
local X = ceil((i - 1) % width + xoffset - width) -
(sfinv_only and 0 or 0.2)
local Y = ceil(i / width + (iY + 2) - min(2, rows))
if width > 3 or rows > 3 then
btn_size = width > 3 and 3 / width or 3 / rows
s_btn_size = btn_size
X = btn_size * (i % width) + xoffset - 2.65
Y = btn_size * floor((i - 1) / width) + (iY + 3) - min(2, rows)
end
if X > rightest then
rightest = X
end
local groups
if sub(item, 1, 6) == "group:" then
groups = extract_groups(item)
item = groups_to_item(groups)
end
local label = ""
if groups and (#groups >= 1 and groups[1] ~= "compass" and groups[1] ~= "clock") then
label = "\nG"
end
fs[#fs + 1] = fmt(FMT.item_image_button,
X,
Y + (sfinv_only and 0.7 or 0.2),
btn_size,
btn_size,
item,
match(item, "%S*"),
ESC(label))
local burntime = fuel_cache[item]
if groups or cooktime or burntime then
fs[#fs + 1] = get_tooltip(item, groups, cooktime, burntime)
end
end
local custom_recipe = craft_types[recipe.type]
if custom_recipe or shapeless or recipe.type == "cooking" then
local icon = custom_recipe and custom_recipe.icon or
shapeless and "shapeless" or "furnace"
if recipe.type == "cooking" then
icon = "default_furnace_front_active.png"
elseif not custom_recipe then
icon = fmt("craftguide_%s.png", icon)
end
fs[#fs + 1] = fmt(FMT.image,
rightest + 1.2,
sfinv_only and 6.2 or iY + 1.7,
0.5,
0.5,
icon)
local tooltip = custom_recipe and custom_recipe.description or
shapeless and S("Shapeless") or S("Cooking")
fs[#fs + 1] = fmt("tooltip[%f,%f;%f,%f;%s]",
rightest + 1.2,
sfinv_only and 6.2 or iY + 1.7,
0.5,
0.5,
ESC(tooltip))
end
local arrow_X = rightest + (s_btn_size or 1.1)
local output_X = arrow_X + 0.9
fs[#fs + 1] = fmt(FMT.image,
arrow_X,
sfinv_only and 6.85 or iY + 2.35,
0.9,
0.7,
"craftguide_arrow.png")
if recipe.type == "fuel" then
fs[#fs + 1] = fmt(FMT.image,
output_X,
sfinv_only and 6.68 or iY + 2.18,
1.1,
1.1,
"mcl_craftguide_fuel.png")
else
local output_name = match(recipe.output, "%S+")
local burntime = fuel_cache[output_name]
fs[#fs + 1] = fmt(FMT.item_image_button,
output_X,
sfinv_only and 6.7 or iY + 2.2,
1.1,
1.1,
recipe.output,
ESC(output_name),
"")
if burntime then
fs[#fs + 1] = get_tooltip(output_name, nil, nil, burntime)
fs[#fs + 1] = fmt(FMT.image,
output_X + 1,
sfinv_only and 6.83 or iY + 2.33,
0.6,
0.4,
"craftguide_arrow.png")
fs[#fs + 1] = fmt(FMT.image,
output_X + 1.6,
sfinv_only and 6.68 or iY + 2.18,
0.6,
0.6,
"mcl_craftguide_fuel.png")
end
end
return concat(fs)
end
local function make_formspec(name)
local data = player_data[name]
local iY = sfinv_only and 4 or data.iX - 5
local ipp = data.iX * iY
data.pagemax = max(1, ceil(#data.items / ipp))
local fs = {}
if not sfinv_only then
fs[#fs + 1] = fmt("size[%f,%f;]", data.iX - 0.35, iY + 4)
fs[#fs + 1] = [[
background[1,1;1,1;craftguide_bg.png;true]
]]
fs[#fs + 1] = fmt([[ tooltip[size_inc;%s]
tooltip[size_dec;%s] ]],
ESC(S("Increase window size")),
ESC(S("Decrease window size")))
fs[#fs + 1] = fmt([[
image_button[%f,0.12;0.8,0.8;craftguide_zoomin_icon.png;size_inc;]
image_button[%f,0.12;0.8,0.8;craftguide_zoomout_icon.png;size_dec;] ]],
data.iX * 0.47,
data.iX * 0.47 + 0.6)
end
fs[#fs + 1] = [[
image_button[2.4,0.12;0.8,0.8;craftguide_search_icon.png;search;]
image_button[3.05,0.12;0.8,0.8;craftguide_clear_icon.png;clear;]
field_close_on_enter[filter;false]
]]
fs[#fs + 1] = fmt([[ tooltip[search;%s]
tooltip[clear;%s]
tooltip[prev;%s]
tooltip[next;%s] ]],
ESC(S("Search")),
ESC(S("Reset")),
ESC(S("Previous page")),
ESC(S("Next page")))
fs[#fs + 1] = fmt("label[%f,%f;%s / %u]",
sfinv_only and 6.3 or data.iX - 2.2,
0.22,
colorize("yellow", data.pagenum),
data.pagemax)
fs[#fs + 1] = fmt([[
image_button[%f,0.12;0.8,0.8;craftguide_prev_icon.png;prev;]
image_button[%f,0.12;0.8,0.8;craftguide_next_icon.png;next;] ]],
sfinv_only and 5.5 or data.iX - 3.1,
sfinv_only and 7.3 or (data.iX - 1.2) - (data.iX >= 11 and 0.08 or 0))
fs[#fs + 1] = fmt("field[0.3,0.32;2.5,1;filter;;%s]", ESC(data.filter))
if #data.items == 0 then
local no_item = S("No item to show")
local pos = (data.iX / 2) - 1
if next(recipe_filters) and #init_items > 0 and data.filter == "" then
no_item = S("Collect items to reveal more recipes")
pos = pos - 1
end
fs[#fs + 1] = fmt(FMT.label, pos, 2, ESC(no_item))
end
local first_item = (data.pagenum - 1) * ipp
for i = first_item, first_item + ipp - 1 do
local item = data.items[i + 1]
if not item then
break
end
local X = i % data.iX
local Y = (i % ipp - X) / data.iX + 1
fs[#fs + 1] = fmt("item_image_button[%f,%f;%f,%f;%s;%s_inv;]",
X - (sfinv_only and 0 or (X * 0.05)),
Y,
1.1,
1.1,
item,
item)
end
if data.recipes and #data.recipes > 0 then
fs[#fs + 1] = get_recipe_fs(data, iY)
end
for elem_name, def in pairs(formspec_elements) do
local element = def.element(data)
if element then
if find(def.type, "button") then
insert(element, #element, elem_name)
end
fs[#fs + 1] = fmt(FMT[def.type], unpack(element))
end
end
return concat(fs)
end
local show_fs = function(player, name)
if sfinv_only then
sfinv.set_player_inventory_formspec(player)
else
show_formspec(name, "mcl_craftguide", make_formspec(name))
end
end
mcl_craftguide.add_search_filter("groups", function(item, groups)
local itemdef = reg_items[item]
local has_groups = true
for i = 1, #groups do
local group = groups[i]
if not itemdef.groups[group] then
has_groups = nil
break
end
end
return has_groups
end)
local function search(data)
local filter = data.filter
if searches[filter] then
data.items = searches[filter]
return
end
local filtered_list, c = {}, 0
local extras = "^(.-)%+([%w_]+)=([%w_,]+)"
local search_filter = next(search_filters) and match(filter, extras)
local filters = {}
if search_filter then
for filter_name, values in gmatch(filter, sub(extras, 6, -1)) do
if search_filters[filter_name] then
values = split(values, ",")
filters[filter_name] = values
end
end
end
for i = 1, #data.items_raw do
local item = data.items_raw[i]
local def = reg_items[item]
local desc = lower(def.description)
local search_in = item .. desc
local to_add
if search_filter then
for filter_name, values in pairs(filters) do
local func = search_filters[filter_name]
to_add = func(item, values) and (search_filter == "" or
find(search_in, search_filter, 1, true))
end
else
to_add = find(search_in, filter, 1, true)
end
if to_add then
c = c + 1
filtered_list[c] = item
end
end
if not next(recipe_filters) then
-- Cache the results only if searched 2 times
if searches[filter] == nil then
searches[filter] = false
else
searches[filter] = filtered_list
end
end
data.items = filtered_list
end
local function get_inv_items(player)
local inv = player:get_inventory()
local stacks = {}
for i = 1, #item_lists do
local list = inv:get_list(item_lists[i])
table_merge(stacks, list)
end
local inv_items, c = {}, 0
for i = 1, #stacks do
local stack = stacks[i]
if not stack:is_empty() then
local name = stack:get_name()
if reg_items[name] then
c = c + 1
inv_items[c] = name
end
end
end
return inv_items
end
local function init_data(name)
player_data[name] = {
filter = "",
pagenum = 1,
iX = sfinv_only and 8 or DEFAULT_SIZE,
items = init_items,
items_raw = init_items,
}
end
local function reset_data(data)
data.filter = ""
data.pagenum = 1
data.rnum = 1
data.query_item = nil
data.show_usages = nil
data.recipes = nil
data.items = data.items_raw
end
local function cache_usages()
for i = 1, #init_items do
local item = init_items[i]
usages_cache[item] = get_item_usages(item)
end
end
local function get_init_items()
local c = 0
for name, def in pairs(reg_items) do
local is_fuel = cache_fuel(name)
if not (def.groups.not_in_craft_guide == 1 or
def.groups.not_in_creative_inventory == 1) and
def.description and def.description ~= "" and
(cache_recipes(name) or is_fuel) then
c = c + 1
init_items[c] = name
end
end
sort(init_items)
cache_usages()
end
local function on_receive_fields(player, fields)
local name = player:get_player_name()
local data = player_data[name]
for elem_name, def in pairs(formspec_elements) do
if fields[elem_name] and def.action then
return def.action(player, data)
end
end
if fields.clear then
reset_data(data)
show_fs(player, name)
elseif fields.alternate then
if #data.recipes == 1 then
return
end
local num_next = data.rnum + 1
data.rnum = data.recipes[num_next] and num_next or 1
show_fs(player, name)
elseif (fields.key_enter_field == "filter" or fields.search) and
fields.filter ~= "" then
local fltr = lower(fields.filter)
if data.filter == fltr then
return
end
data.filter = fltr
data.pagenum = 1
search(data)
show_fs(player, name)
elseif fields.prev or fields.next then
if data.pagemax == 1 then
return
end
data.pagenum = data.pagenum - (fields.prev and 1 or -1)
if data.pagenum > data.pagemax then
data.pagenum = 1
elseif data.pagenum == 0 then
data.pagenum = data.pagemax
end
show_fs(player, name)
elseif (fields.size_inc and data.iX < MAX_LIMIT) or
(fields.size_dec and data.iX > MIN_LIMIT) then
data.pagenum = 1
data.iX = data.iX + (fields.size_inc and 1 or -1)
show_fs(player, name)
else
local item
for field in pairs(fields) do
if find(field, ":") then
item = field
break
end
end
if not item then
return
elseif sub(item, -4) == "_inv" then
item = sub(item, 1, -5)
end
if item ~= data.query_item then
data.show_usages = nil
else
data.show_usages = not data.show_usages
end
local recipes = get_recipes(item, data, player)
if not recipes then
return
end
data.query_item = item
data.recipes = recipes
data.rnum = 1
show_fs(player, name)
end
end
M.register_on_mods_loaded(get_init_items)
-- TODO: Remove sfinv support
if sfinv_only then
sfinv.register_page("craftguide:craftguide", {
title = "Craft Guide",
get = function(self, player, context)
local name = player:get_player_name()
local formspec = make_formspec(name)
return sfinv.make_formspec(player, context, formspec)
end,
on_enter = function(self, player, context)
if next(recipe_filters) then
local name = player:get_player_name()
local data = player_data[name]
data.items_raw = get_filtered_items(player)
search(data)
end
end,
on_player_receive_fields = function(self, player, context, fields)
on_receive_fields(player, fields)
end,
})
else
M.register_on_player_receive_fields(function(player, formname, fields)
if formname == "mcl_craftguide" then
on_receive_fields(player, fields)
elseif fields.__mcl_craftguide then
mcl_craftguide.show(player:get_player_name())
end
end)
local function on_use(user)
local name = user:get_player_name()
if next(recipe_filters) then
local data = player_data[name]
data.items_raw = get_filtered_items(user)
search(data)
end
show_formspec(name, "mcl_craftguide", make_formspec(name))
end
end
if progressive_mode then
local function item_in_inv(item, inv_items)
local inv_items_size = #inv_items
if sub(item, 1, 6) == "group:" then
local groups = extract_groups(item)
for i = 1, inv_items_size do
local inv_item = reg_items[inv_items[i]]
if inv_item then
local item_groups = inv_item.groups
if item_has_groups(item_groups, groups) then
return true
end
end
end
else
for i = 1, inv_items_size do
if inv_items[i] == item then
return true
end
end
end
end
local function recipe_in_inv(recipe, inv_items)
for _, item in pairs(recipe.items) do
if not item_in_inv(item, inv_items) then
return
end
end
return true
end
local function progressive_filter(recipes, player)
local name = player:get_player_name()
local data = player_data[name]
if #data.inv_items == 0 then
return {}
end
local filtered, c = {}, 0
for i = 1, #recipes do
local recipe = recipes[i]
if recipe_in_inv(recipe, data.inv_items) then
c = c + 1
filtered[c] = recipe
end
end
return filtered
end
-- Workaround. Need an engine call to detect when the contents
-- of the player inventory changed, instead.
local function poll_new_items()
local players = M.get_connected_players()
for i = 1, #players do
local player = players[i]
local name = player:get_player_name()
local data = player_data[name]
local inv_items = get_inv_items(player)
local diff = table_diff(inv_items, data.inv_items)
if #diff > 0 then
data.inv_items = table_merge(diff, data.inv_items)
end
end
M.after(POLL_FREQ, poll_new_items)
end
poll_new_items()
mcl_craftguide.add_recipe_filter("Default progressive filter", progressive_filter)
M.register_on_joinplayer(function(player)
local name = player:get_player_name()
init_data(name)
local meta = player:get_meta()
local name = player:get_player_name()
local data = player_data[name]
data.inv_items = deserialize(meta:get_string("inv_items")) or {}
end)
local function save_meta(player)
local meta = player:get_meta()
local name = player:get_player_name()
local data = player_data[name]
meta:set_string("inv_items", serialize(data.inv_items))
end
M.register_on_leaveplayer(function(player)
save_meta(player)
local name = player:get_player_name()
player_data[name] = nil
end)
M.register_on_shutdown(function()
local players = M.get_connected_players()
for i = 1, #players do
local player = players[i]
save_meta(player)
end
end)
else
M.register_on_joinplayer(function(player)
local name = player:get_player_name()
init_data(name)
end)
M.register_on_leaveplayer(function(player)
local name = player:get_player_name()
player_data[name] = nil
end)
end
function mcl_craftguide.show(name)
local player = minetest.get_player_by_name(name)
if next(recipe_filters) then
local data = player_data[name]
data.items_raw = get_filtered_items(player)
search(data)
end
show_formspec(name, "mcl_craftguide", make_formspec(name))
end
--[[ Custom recipes (>3x3) test code
M.register_craftitem(":secretstuff:custom_recipe_test", {
description = "Custom Recipe Test",
})
local cr = {}
for x = 1, 6 do
cr[x] = {}
for i = 1, 10 - x do
cr[x][i] = {}
for j = 1, 10 - x do
cr[x][i][j] = "group:wood"
end
end
M.register_craft({
output = "secretstuff:custom_recipe_test",
recipe = cr[x]
})
end
]]