minetest/builtin/mainmenu/common.lua

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--Minetest
--Copyright (C) 2014 sapier
--
--This program is free software; you can redistribute it and/or modify
--it under the terms of the GNU Lesser General Public License as published by
--the Free Software Foundation; either version 2.1 of the License, or
--(at your option) any later version.
--
--This program is distributed in the hope that it will be useful,
--but WITHOUT ANY WARRANTY; without even the implied warranty of
--MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
--GNU Lesser General Public License for more details.
--
--You should have received a copy of the GNU Lesser General Public License along
--with this program; if not, write to the Free Software Foundation, Inc.,
--51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
--------------------------------------------------------------------------------
-- Global menu data
--------------------------------------------------------------------------------
menudata = {}
--------------------------------------------------------------------------------
-- Local cached values
--------------------------------------------------------------------------------
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local min_supp_proto, max_supp_proto
function common_update_cached_supp_proto()
min_supp_proto = core.get_min_supp_proto()
max_supp_proto = core.get_max_supp_proto()
end
common_update_cached_supp_proto()
--------------------------------------------------------------------------------
-- Menu helper functions
--------------------------------------------------------------------------------
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--------------------------------------------------------------------------------
local function render_client_count(n)
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if n > 99 then return '99+'
elseif n >= 0 then return tostring(n)
else return '?' end
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end
local function configure_selected_world_params(idx)
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local worldconfig = modmgr.get_worldconfig(menudata.worldlist:get_list()[idx].path)
if worldconfig.creative_mode then
core.setting_set("creative_mode", worldconfig.creative_mode)
end
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if worldconfig.enable_damage then
core.setting_set("enable_damage", worldconfig.enable_damage)
end
end
--------------------------------------------------------------------------------
function image_column(tooltip, flagname)
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return "image,tooltip=" .. core.formspec_escape(tooltip) .. "," ..
"0=" .. core.formspec_escape(defaulttexturedir .. "blank.png") .. "," ..
"1=" .. core.formspec_escape(defaulttexturedir .. "server_flags_" .. flagname .. ".png") .. "," ..
"2=" .. core.formspec_escape(defaulttexturedir .. "server_ping_4.png") .. "," ..
"3=" .. core.formspec_escape(defaulttexturedir .. "server_ping_3.png") .. "," ..
"4=" .. core.formspec_escape(defaulttexturedir .. "server_ping_2.png") .. "," ..
"5=" .. core.formspec_escape(defaulttexturedir .. "server_ping_1.png")
end
--------------------------------------------------------------------------------
function order_favorite_list(list)
local res = {}
--orders the favorite list after support
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for i = 1, #list do
local fav = list[i]
if is_server_protocol_compat(fav.proto_min, fav.proto_max) then
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res[#res + 1] = fav
end
end
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for i = 1, #list do
local fav = list[i]
if not is_server_protocol_compat(fav.proto_min, fav.proto_max) then
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res[#res + 1] = fav
end
end
return res
end
--------------------------------------------------------------------------------
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function render_serverlist_row(spec, is_favorite)
local text = ""
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if spec.name then
text = text .. core.formspec_escape(spec.name:trim())
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elseif spec.address then
text = text .. spec.address:trim()
if spec.port then
text = text .. ":" .. spec.port
end
end
local details = ""
local grey_out = not is_server_protocol_compat(spec.proto_min, spec.proto_max)
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if is_favorite then
details = "1,"
else
details = "0,"
end
if spec.ping then
local ping = spec.ping * 1000
if ping <= 50 then
details = details .. "2,"
elseif ping <= 100 then
details = details .. "3,"
elseif ping <= 250 then
details = details .. "4,"
else
details = details .. "5,"
end
else
details = details .. "0,"
end
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if spec.clients and spec.clients_max then
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local clients_color = ''
local clients_percent = 100 * spec.clients / spec.clients_max
-- Choose a color depending on how many clients are connected
-- (relatively to clients_max)
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if grey_out then clients_color = '#aaaaaa'
elseif spec.clients == 0 then clients_color = '' -- 0 players: default/white
elseif clients_percent <= 60 then clients_color = '#a1e587' -- 0-60%: green
elseif clients_percent <= 90 then clients_color = '#ffdc97' -- 60-90%: yellow
elseif clients_percent == 100 then clients_color = '#dd5b5b' -- full server: red (darker)
else clients_color = '#ffba97' -- 90-100%: orange
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end
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details = details .. clients_color .. ',' ..
render_client_count(spec.clients) .. ',/,' ..
render_client_count(spec.clients_max) .. ','
elseif grey_out then
details = details .. '#aaaaaa,?,/,?,'
else
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details = details .. ',?,/,?,'
end
if spec.creative then
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details = details .. "1,"
else
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details = details .. "0,"
end
if spec.damage then
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details = details .. "1,"
else
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details = details .. "0,"
end
if spec.pvp then
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details = details .. "1,"
else
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details = details .. "0,"
end
return details .. (grey_out and '#aaaaaa,' or ',') .. text
end
--------------------------------------------------------------------------------
os.tempfolder = function()
if core.setting_get("TMPFolder") then
return core.setting_get("TMPFolder") .. DIR_DELIM .. "MT_" .. math.random(0,10000)
end
local filetocheck = os.tmpname()
os.remove(filetocheck)
local randname = "MTTempModFolder_" .. math.random(0,10000)
if DIR_DELIM == "\\" then
local tempfolder = os.getenv("TEMP")
return tempfolder .. filetocheck
else
local backstring = filetocheck:reverse()
return filetocheck:sub(0,filetocheck:len()-backstring:find(DIR_DELIM)+1) ..randname
end
end
--------------------------------------------------------------------------------
function menu_render_worldlist()
local retval = ""
local current_worldlist = menudata.worldlist:get_list()
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for i, v in ipairs(current_worldlist) do
if retval ~= "" then retval = retval .. "," end
retval = retval .. core.formspec_escape(v.name) ..
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" \\[" .. core.formspec_escape(v.gameid) .. "\\]"
end
return retval
end
--------------------------------------------------------------------------------
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function menu_handle_key_up_down(fields, textlist, settingname)
local oldidx, newidx = core.get_textlist_index(textlist), 1
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if fields.key_up or fields.key_down then
if fields.key_up and oldidx and oldidx > 1 then
newidx = oldidx - 1
elseif fields.key_down and oldidx and
oldidx < menudata.worldlist:size() then
newidx = oldidx + 1
end
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core.setting_set(settingname, menudata.worldlist:get_raw_index(newidx))
configure_selected_world_params(newidx)
return true
end
return false
end
--------------------------------------------------------------------------------
function asyncOnlineFavourites()
if not menudata.public_known then
menudata.public_known = {{
name = fgettext("Loading..."),
description = fgettext_ne("Try reenabling public serverlist and check your internet connection.")
}}
end
menudata.favorites = menudata.public_known
menudata.favorites_is_public = true
if not menudata.public_downloading then
menudata.public_downloading = true
else
return
end
core.handle_async(
function(param)
return core.get_favorites("online")
end,
nil,
function(result)
menudata.public_downloading = nil
local favs = order_favorite_list(result)
if favs[1] then
menudata.public_known = favs
menudata.favorites = menudata.public_known
menudata.favorites_is_public = true
end
core.event_handler("Refresh")
end
)
end
--------------------------------------------------------------------------------
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function text2textlist(xpos, ypos, width, height, tl_name, textlen, text, transparency)
local textlines = core.splittext(text, textlen)
local retval = "textlist[" .. xpos .. "," .. ypos .. ";" .. width ..
"," .. height .. ";" .. tl_name .. ";"
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for i = 1, #textlines do
textlines[i] = textlines[i]:gsub("\r", "")
retval = retval .. core.formspec_escape(textlines[i]) .. ","
end
retval = retval .. ";0;"
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if transparency then retval = retval .. "true" end
retval = retval .. "]"
return retval
end
--------------------------------------------------------------------------------
function is_server_protocol_compat(server_proto_min, server_proto_max)
if (not server_proto_min) or (not server_proto_max) then
-- There is no info. Assume the best and act as if we would be compatible.
return true
end
return min_supp_proto <= server_proto_max and max_supp_proto >= server_proto_min
end
--------------------------------------------------------------------------------
function is_server_protocol_compat_or_error(server_proto_min, server_proto_max)
if not is_server_protocol_compat(server_proto_min, server_proto_max) then
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local server_prot_ver_info, client_prot_ver_info
local s_p_min = server_proto_min
local s_p_max = server_proto_max
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if s_p_min ~= s_p_max then
server_prot_ver_info = fgettext_ne("Server supports protocol versions between $1 and $2. ",
s_p_min, s_p_max)
else
server_prot_ver_info = fgettext_ne("Server enforces protocol version $1. ",
s_p_min)
end
if min_supp_proto ~= max_supp_proto then
client_prot_ver_info= fgettext_ne("We support protocol versions between version $1 and $2.",
min_supp_proto, max_supp_proto)
else
client_prot_ver_info = fgettext_ne("We only support protocol version $1.", min_supp_proto)
end
gamedata.errormessage = fgettext_ne("Protocol version mismatch. ")
.. server_prot_ver_info
.. client_prot_ver_info
return false
end
return true
end
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--------------------------------------------------------------------------------
function menu_worldmt(selected, setting, value)
local world = menudata.worldlist:get_list()[selected]
if world then
local filename = world.path .. DIR_DELIM .. "world.mt"
local world_conf = Settings(filename)
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if value then
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if not world_conf:write() then
core.log("error", "Failed to write world config file")
end
world_conf:set(setting, value)
world_conf:write()
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else
return world_conf:get(setting)
end
else
return nil
end
end
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function menu_worldmt_legacy(selected)
local modes_names = {"creative_mode", "enable_damage", "server_announce"}
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for _, mode_name in pairs(modes_names) do
local mode_val = menu_worldmt(selected, mode_name)
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if mode_val then
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core.setting_set(mode_name, mode_val)
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else
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menu_worldmt(selected, mode_name, core.setting_get(mode_name))
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end
end
end