unified_inventory/internal.lua

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local S = unified_inventory.gettext
-- This pair of encoding functions is used where variable text must go in
-- button names, where the text might contain formspec metacharacters.
-- We can escape button names for the formspec, to avoid screwing up
-- form structure overall, but they then don't get de-escaped, and so
-- the input we get back from the button contains the formspec escaping.
-- This is a game engine bug, and in the anticipation that it might be
-- fixed some day we don't want to rely on it. So for safety we apply
-- an encoding that avoids all formspec metacharacters.
function unified_inventory.mangle_for_formspec(str)
return string.gsub(str, "([^A-Za-z0-9])", function (c) return string.format("_%d_", string.byte(c)) end)
end
function unified_inventory.demangle_for_formspec(str)
return string.gsub(str, "_([0-9]+)_", function (v) return string.char(v) end)
end
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function unified_inventory.get_formspec(player, page)
if not player then
return ""
end
local player_name = player:get_player_name()
unified_inventory.current_page[player_name] = page
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local pagedef = unified_inventory.pages[page]
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local formspec = {
"size[14,10]",
"background[-0.19,-0.25;14.4,10.75;ui_form_bg.png]" -- Background
}
local n = 3
if unified_inventory.lite_mode then
formspec[1] = "size[11,7.7]"
formspec[2] = "background[-0.19,-0.2;11.4,8.4;ui_form_bg.png]"
end
if unified_inventory.is_creative(player_name)
and page == "craft" then
formspec[n] = "background[0,"..(unified_inventory.formspec_y + 2)..";1,1;ui_single_slot.png]"
n = n+1
end
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-- Current page
if not unified_inventory.pages[page] then
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return "" -- Invalid page name
end
local fsdata = pagedef.get_formspec(player)
formspec[n] = fsdata.formspec
n = n+1
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local button_row = 0
local button_col = 0
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-- Main buttons
for i, def in pairs(unified_inventory.buttons) do
if unified_inventory.lite_mode and i > 4 then
button_row = 1
button_col = 1
end
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if def.type == "image" then
formspec[n] = "image_button["
formspec[n+1] = ( unified_inventory.main_button_x + 0.65 * (i - 1) - button_col * 0.65 * 4)
formspec[n+2] = ","..(unified_inventory.main_button_y + button_row * 0.7)..";0.8,0.8;"
formspec[n+3] = minetest.formspec_escape(def.image)..";"
formspec[n+4] = minetest.formspec_escape(def.name)..";]"
formspec[n+5] = "tooltip["..minetest.formspec_escape(def.name)
formspec[n+6] = ";"..(def.tooltip or "").."]"
n = n+7
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end
end
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if fsdata.draw_inventory ~= false then
-- Player inventory
formspec[n] = "listcolors[#00000000;#00000000]"
formspec[n+1] = "list[current_player;main;0,"..(unified_inventory.formspec_y + 3.5)..";8,4;]"
n = n+2
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end
if fsdata.draw_item_list == false then
return table.concat(formspec, "")
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end
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-- Controls to flip items pages
local start_x = 9.2
if not unified_inventory.lite_mode then
formspec[n] =
"image_button[" .. (start_x + 0.6 * 0)
.. ",9;.8,.8;ui_skip_backward_icon.png;start_list;]"
.. "tooltip[start_list;" .. minetest.formspec_escape(S("First page")) .. "]"
.. "image_button[" .. (start_x + 0.6 * 1)
.. ",9;.8,.8;ui_doubleleft_icon.png;rewind3;]"
.. "tooltip[rewind3;" .. minetest.formspec_escape(S("Back three pages")) .. "]"
.. "image_button[" .. (start_x + 0.6 * 2)
.. ",9;.8,.8;ui_left_icon.png;rewind1;]"
.. "tooltip[rewind1;" .. minetest.formspec_escape(S("Back one page")) .. "]"
.. "image_button[" .. (start_x + 0.6 * 3)
.. ",9;.8,.8;ui_right_icon.png;forward1;]"
.. "tooltip[forward1;" .. minetest.formspec_escape(S("Forward one page")) .. "]"
.. "image_button[" .. (start_x + 0.6 * 4)
.. ",9;.8,.8;ui_doubleright_icon.png;forward3;]"
.. "tooltip[forward3;" .. minetest.formspec_escape(S("Forward three pages")) .. "]"
.. "image_button[" .. (start_x + 0.6 * 5)
.. ",9;.8,.8;ui_skip_forward_icon.png;end_list;]"
.. "tooltip[end_list;" .. minetest.formspec_escape(S("Last page")) .. "]"
else
formspec[n] =
"image_button[" .. (8.2 + 0.65 * 0)
.. ",5.8;.8,.8;ui_skip_backward_icon.png;start_list;]"
.. "tooltip[start_list;" .. minetest.formspec_escape(S("First page")) .. "]"
.. "image_button[" .. (8.2 + 0.65 * 1)
.. ",5.8;.8,.8;ui_left_icon.png;rewind1;]"
.. "tooltip[rewind1;" .. minetest.formspec_escape(S("Back one page")) .. "]"
.. "image_button[" .. (8.2 + 0.65 * 2)
.. ",5.8;.8,.8;ui_right_icon.png;forward1;]"
.. "tooltip[forward1;" .. minetest.formspec_escape(S("Forward one page")) .. "]"
.. "image_button[" .. (8.2 + 0.65 * 3)
.. ",5.8;.8,.8;ui_skip_forward_icon.png;end_list;]"
.. "tooltip[end_list;" .. minetest.formspec_escape(S("Last page")) .. "]"
end
n = n+1
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-- Search box
if not unified_inventory.lite_mode then
formspec[n] = "field[9.5,8.325;3,1;searchbox;;"
.. minetest.formspec_escape(unified_inventory.current_searchbox[player_name]) .. "]"
formspec[n+1] = "image_button[12.2,8.1;.8,.8;ui_search_icon.png;searchbutton;]"
.. "tooltip[searchbutton;" ..S("Search") .. "]"
else
formspec[n] = "field[8.5,5.225;2.2,1;searchbox;;"
.. minetest.formspec_escape(unified_inventory.current_searchbox[player_name]) .. "]"
formspec[n+1] = "image_button[10.3,5;.8,.8;ui_search_icon.png;searchbutton;]"
.. "tooltip[searchbutton;" ..S("Search") .. "]"
end
n = n+2
local no_matches = "No matching items"
if unified_inventory.lite_mode then
no_matches = "No matches."
end
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-- Items list
if #unified_inventory.filtered_items_list[player_name] == 0 then
formspec[n] = "label[8.2,"..unified_inventory.form_header_y..";" .. S(no_matches) .. "]"
else
local dir = unified_inventory.active_search_direction[player_name]
local list_index = unified_inventory.current_index[player_name]
local page = math.floor(list_index / (unified_inventory.items_per_page) + 1)
local pagemax = math.floor(
(#unified_inventory.filtered_items_list[player_name] - 1)
/ (unified_inventory.items_per_page) + 1)
local item = {}
for y = 0, unified_inventory.pagerows - 1 do
for x = 0, unified_inventory.pagecols - 1 do
local name = unified_inventory.filtered_items_list[player_name][list_index]
if minetest.registered_items[name] then
formspec[n] = "item_image_button["
..(8.2 + x * 0.7)..","
..(unified_inventory.formspec_y + unified_inventory.page_y + y * 0.7)..";.81,.81;"
..name..";item_button_"..dir.."_"
..unified_inventory.mangle_for_formspec(name)..";]"
n = n+1
list_index = list_index + 1
end
end
end
formspec[n] = "label[8.2,"..unified_inventory.form_header_y..";"..S("Page") .. ": "
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.. S("%s of %s"):format(page,pagemax).."]"
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end
n= n+1
if unified_inventory.activefilter[player_name] ~= "" then
formspec[n] = "label[8.2,"..(unified_inventory.form_header_y + 0.4)..";" .. S("Filter") .. ":]"
formspec[n+1] = "label[9.1,"..(unified_inventory.form_header_y + 0.4)..";"..minetest.formspec_escape(unified_inventory.activefilter[player_name]).."]"
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end
return table.concat(formspec, "")
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end
function unified_inventory.set_inventory_formspec(player, page)
if player then
player:set_inventory_formspec(unified_inventory.get_formspec(player, page))
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end
end
--apply filter to the inventory list (create filtered copy of full one)
function unified_inventory.apply_filter(player, filter, search_dir)
if not player then
return false
end
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local player_name = player:get_player_name()
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local lfilter = string.lower(filter)
local ffilter
if lfilter:sub(1, 6) == "group:" then
local groups = lfilter:sub(7):split(",")
ffilter = function(name, def)
for _, group in ipairs(groups) do
if not def.groups[group]
or def.groups[group] <= 0 then
return false
end
end
return true
end
else
ffilter = function(name, def)
local lname = string.lower(name)
local ldesc = string.lower(def.description)
return string.find(lname, lfilter, 1, true) or string.find(ldesc, lfilter, 1, true)
end
end
unified_inventory.filtered_items_list[player_name]={}
for name, def in pairs(minetest.registered_items) do
if (not def.groups.not_in_creative_inventory
or def.groups.not_in_creative_inventory == 0)
and def.description
and def.description ~= ""
and ffilter(name, def)
and (unified_inventory.is_creative(player_name)
or unified_inventory.crafts_for.recipe[def.name]) then
table.insert(unified_inventory.filtered_items_list[player_name], name)
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end
end
table.sort(unified_inventory.filtered_items_list[player_name])
unified_inventory.filtered_items_list_size[player_name] = #unified_inventory.filtered_items_list[player_name]
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unified_inventory.current_index[player_name] = 1
unified_inventory.activefilter[player_name] = filter
unified_inventory.active_search_direction[player_name] = search_dir
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unified_inventory.set_inventory_formspec(player,
unified_inventory.current_page[player_name])
end
function unified_inventory.items_in_group(groups)
local items = {}
for name, item in pairs(minetest.registered_items) do
for _, group in pairs(groups:split(',')) do
if item.groups[group] then
table.insert(items, name)
end
end
end
return items
end
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function unified_inventory.sort_inventory(inv)
local inlist = inv:get_list("main")
local typecnt = {}
local typekeys = {}
for _, st in ipairs(inlist) do
if not st:is_empty() then
local n = st:get_name()
local w = st:get_wear()
local m = st:get_metadata()
local k = string.format("%s %05d %s", n, w, m)
if not typecnt[k] then
typecnt[k] = {
name = n,
wear = w,
metadata = m,
stack_max = st:get_stack_max(),
count = 0,
}
table.insert(typekeys, k)
end
typecnt[k].count = typecnt[k].count + st:get_count()
end
end
table.sort(typekeys)
local outlist = {}
for _, k in ipairs(typekeys) do
local tc = typecnt[k]
while tc.count > 0 do
local c = math.min(tc.count, tc.stack_max)
table.insert(outlist, ItemStack({
name = tc.name,
wear = tc.wear,
metadata = tc.metadata,
count = c,
}))
tc.count = tc.count - c
end
end
if #outlist > #inlist then return end
while #outlist < #inlist do
table.insert(outlist, ItemStack(nil))
end
inv:set_list("main", outlist)
end