builtin/mainmenu/common.lua

   1 --Minetest
   2 --Copyright (C) 2014 sapier
   3 --
   4 --This program is free software; you can redistribute it and/or modify
   5 --it under the terms of the GNU Lesser General Public License as published by
   6 --the Free Software Foundation; either version 2.1 of the License, or
   7 --(at your option) any later version.
   8 --
   9 --This program is distributed in the hope that it will be useful,
  10 --but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 --MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 --GNU Lesser General Public License for more details.
  13 --
  14 --You should have received a copy of the GNU Lesser General Public License along
  15 --with this program; if not, write to the Free Software Foundation, Inc.,
  16 --51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17 --------------------------------------------------------------------------------
  18 -- Global menu data
  19 ---------------------------------------------------------------------------------
  20 menudata = {}
  21
  22 --------------------------------------------------------------------------------
  23 -- Menu helper functions
  24 --------------------------------------------------------------------------------
  25
  26 --------------------------------------------------------------------------------
  27 local function render_client_count(n)
  28         if n > 99 then
  29                 return '99+'
  30         elseif n >= 0 then
  31                 return tostring(n)
  32         else
  33                 return '?'
  34         end
  35 end
  36
  37 --------------------------------------------------------------------------------
  38 function render_favorite(spec,render_details)
  39         local text = ""
  40
  41         if spec.name ~= nil then
  42                 text = text .. core.formspec_escape(spec.name:trim())
  43
  44 --              if spec.description ~= nil and
  45 --                      core.formspec_escape(spec.description):trim() ~= "" then
  46 --                      text = text .. " (" .. core.formspec_escape(spec.description) .. ")"
  47 --              end
  48         else
  49                 if spec.address ~= nil then
  50                         text = text .. spec.address:trim()
  51
  52                         if spec.port ~= nil then
  53                                 text = text .. ":" .. spec.port
  54                         end
  55                 end
  56         end
  57
  58         if not render_details then
  59                 return text
  60         end
  61
  62         local details = ""
  63
  64         if spec.clients ~= nil and spec.clients_max ~= nil then
  65                 local clients_color = ''
  66                 local clients_percent = 100 * spec.clients / spec.clients_max
  67
  68                 -- Choose a color depending on how many clients are connected
  69                 -- (relatively to clients_max)
  70                 if spec.clients == 0 then
  71                         clients_color = ''        -- 0 players: default/white
  72                 elseif spec.clients == spec.clients_max then
  73                         clients_color = '#dd5b5b' -- full server: red (darker)
  74                 elseif clients_percent <= 60 then
  75                         clients_color = '#a1e587' -- 0-60%: green
  76                 elseif clients_percent <= 90 then
  77                         clients_color = '#ffdc97' -- 60-90%: yellow
  78                 else
  79                         clients_color = '#ffba97' -- 90-100%: orange
  80                 end
  81
  82                 details = details ..
  83                                 clients_color .. ',' ..
  84                                 render_client_count(spec.clients) .. ',' ..
  85                                 '/,' ..
  86                                 render_client_count(spec.clients_max) .. ','
  87         else
  88                 details = details .. ',?,/,?,'
  89         end
  90
  91         if spec.creative then
  92                 details = details .. "1,"
  93         else
  94                 details = details .. "0,"
  95         end
  96
  97         if spec.damage then
  98                 details = details .. "1,"
  99         else
 100                 details = details .. "0,"
 101         end
 102
 103         if spec.pvp then
 104                 details = details .. "1,"
 105         else
 106                 details = details .. "0,"
 107         end
 108
 109         return details .. text
 110 end
 111
 112 --------------------------------------------------------------------------------
 113 os.tempfolder = function()
 114         if core.setting_get("TMPFolder") then
 115                 return core.setting_get("TMPFolder") .. DIR_DELIM .. "MT_" .. math.random(0,10000)
 116         end
 117
 118         local filetocheck = os.tmpname()
 119         os.remove(filetocheck)
 120
 121         local randname = "MTTempModFolder_" .. math.random(0,10000)
 122         if DIR_DELIM == "\\" then
 123                 local tempfolder = os.getenv("TEMP")
 124                 return tempfolder .. filetocheck
 125         else
 126                 local backstring = filetocheck:reverse()
 127                 return filetocheck:sub(0,filetocheck:len()-backstring:find(DIR_DELIM)+1) ..randname
 128         end
 129
 130 end
 131
 132 --------------------------------------------------------------------------------
 133 function menu_render_worldlist()
 134         local retval = ""
 135
 136         local current_worldlist = menudata.worldlist:get_list()
 137
 138         for i,v in ipairs(current_worldlist) do
 139                 if retval ~= "" then
 140                         retval = retval ..","
 141                 end
 142
 143                 retval = retval .. core.formspec_escape(v.name) ..
 144                                         " \\[" .. core.formspec_escape(v.gameid) .. "\\]"
 145         end
 146
 147         return retval
 148 end
 149
 150 --------------------------------------------------------------------------------
 151 function menu_handle_key_up_down(fields,textlist,settingname)
 152
 153         if fields["key_up"] then
 154                 local oldidx = core.get_textlist_index(textlist)
 155
 156                 if oldidx ~= nil and oldidx > 1 then
 157                         local newidx = oldidx -1
 158                         core.setting_set(settingname,
 159                                 menudata.worldlist:get_raw_index(newidx))
 160                 end
 161                 return true
 162         end
 163
 164         if fields["key_down"] then
 165                 local oldidx = core.get_textlist_index(textlist)
 166
 167                 if oldidx ~= nil and oldidx < menudata.worldlist:size() then
 168                         local newidx = oldidx + 1
 169                         core.setting_set(settingname,
 170                                 menudata.worldlist:get_raw_index(newidx))
 171                 end
 172
 173                 return true
 174         end
 175
 176         return false
 177 end
 178
 179 --------------------------------------------------------------------------------
 180 function asyncOnlineFavourites()
 181
 182         menudata.favorites = {}
 183         core.handle_async(
 184                 function(param)
 185                         return core.get_favorites("online")
 186                 end,
 187                 nil,
 188                 function(result)
 189                         if core.setting_getbool("public_serverlist") then
 190                                 menudata.favorites = result
 191                                 core.event_handler("Refresh")
 192                         end
 193                 end
 194                 )
 195 end
 196
 197 --------------------------------------------------------------------------------
 198 function text2textlist(xpos,ypos,width,height,tl_name,textlen,text,transparency)
 199         local textlines = core.splittext(text,textlen)
 200
 201         local retval = "textlist[" .. xpos .. "," .. ypos .. ";"
 202                                                                 .. width .. "," .. height .. ";"
 203                                                                 .. tl_name .. ";"
 204
 205         for i=1, #textlines, 1 do
 206                 textlines[i] = textlines[i]:gsub("\r","")
 207                 retval = retval .. core.formspec_escape(textlines[i]) .. ","
 208         end
 209
 210         retval = retval .. ";0;"
 211
 212         if transparency then
 213                 retval = retval .. "true"
 214         end
 215
 216         retval = retval .. "]"
 217
 218         return retval
 219 end