builtin/mainmenu.lua

   1 print = engine.debug
   2 math.randomseed(os.time())
   3 os.setlocale("C", "numeric")
   4
   5 local errorfct = error
   6 error = function(text)
   7         print(debug.traceback(""))
   8         errorfct(text)
   9 end
  10
  11 local scriptpath = engine.get_scriptdir()
  12
  13 mt_color_grey  = "#AAAAAA"
  14 mt_color_blue  = "#0000DD"
  15 mt_color_green = "#00DD00"
  16 mt_color_dark_green = "#003300"
  17
  18 --for all other colors ask sfan5 to complete his worK!
  19
  20 dofile(scriptpath .. DIR_DELIM .. "misc_helpers.lua")
  21 dofile(scriptpath .. DIR_DELIM .. "filterlist.lua")
  22 dofile(scriptpath .. DIR_DELIM .. "modmgr.lua")
  23 dofile(scriptpath .. DIR_DELIM .. "modstore.lua")
  24 dofile(scriptpath .. DIR_DELIM .. "gamemgr.lua")
  25 dofile(scriptpath .. DIR_DELIM .. "mm_textures.lua")
  26 dofile(scriptpath .. DIR_DELIM .. "mm_menubar.lua")
  27 dofile(scriptpath .. DIR_DELIM .. "async_event.lua")
  28
  29 menu = {}
  30 local tabbuilder = {}
  31 local worldlist = nil
  32
  33 --------------------------------------------------------------------------------
  34 local function filter_texture_pack_list(list)
  35         retval = {"None"}
  36         for _,i in ipairs(list) do
  37                 if i~="base" then
  38                         table.insert(retval, i)
  39                 end
  40         end
  41         return retval
  42 end
  43
  44 --------------------------------------------------------------------------------
  45 function menu.render_favorite(spec,render_details)
  46         local text = ""
  47
  48         if spec.name ~= nil then
  49                 text = text .. engine.formspec_escape(spec.name:trim())
  50
  51 --              if spec.description ~= nil and
  52 --                      engine.formspec_escape(spec.description):trim() ~= "" then
  53 --                      text = text .. " (" .. engine.formspec_escape(spec.description) .. ")"
  54 --              end
  55         else
  56                 if spec.address ~= nil then
  57                         text = text .. spec.address:trim()
  58
  59                         if spec.port ~= nil then
  60                                 text = text .. ":" .. spec.port
  61                         end
  62                 end
  63         end
  64
  65         if not render_details then
  66                 return text
  67         end
  68
  69         local details = ""
  70         if spec.password == true then
  71                 details = details .. "*"
  72         else
  73                 details = details .. "_"
  74         end
  75
  76         if spec.creative then
  77                 details = details .. "C"
  78         else
  79                 details = details .. "_"
  80         end
  81
  82         if spec.damage then
  83                 details = details .. "D"
  84         else
  85                 details = details .. "_"
  86         end
  87
  88         if spec.pvp then
  89                 details = details .. "P"
  90         else
  91                 details = details .. "_"
  92         end
  93         details = details .. " "
  94
  95         local playercount = ""
  96
  97         if spec.clients ~= nil and
  98                 spec.clients_max ~= nil then
  99                 playercount = string.format("%03d",spec.clients) .. "/" ..
 100                                                 string.format("%03d",spec.clients_max) .. " "
 101         end
 102
 103         return playercount .. engine.formspec_escape(details) ..  text
 104 end
 105
 106 --------------------------------------------------------------------------------
 107 os.tempfolder = function()
 108         local filetocheck = os.tmpname()
 109         os.remove(filetocheck)
 110
 111         local randname = "MTTempModFolder_" .. math.random(0,10000)
 112         if DIR_DELIM == "\\" then
 113                 local tempfolder = os.getenv("TEMP")
 114                 return tempfolder .. filetocheck
 115         else
 116                 local backstring = filetocheck:reverse()
 117                 return filetocheck:sub(0,filetocheck:len()-backstring:find(DIR_DELIM)+1) ..randname
 118         end
 119
 120 end
 121
 122 --------------------------------------------------------------------------------
 123 function text2textlist(xpos,ypos,width,height,tl_name,textlen,text,transparency)
 124         local textlines = engine.splittext(text,textlen)
 125
 126         local retval = "textlist[" .. xpos .. "," .. ypos .. ";"
 127                                                                 .. width .. "," .. height .. ";"
 128                                                                 .. tl_name .. ";"
 129
 130         for i=1, #textlines, 1 do
 131                 textlines[i] = textlines[i]:gsub("\r","")
 132                 retval = retval .. engine.formspec_escape(textlines[i]) .. ","
 133         end
 134
 135         retval = retval .. ";0;"
 136
 137         if transparency then
 138                 retval = retval .. "true"
 139         end
 140
 141         retval = retval .. "]"
 142
 143         return retval
 144 end
 145
 146 --------------------------------------------------------------------------------
 147 function init_globals()
 148         --init gamedata
 149         gamedata.worldindex = 0
 150
 151         worldlist = filterlist.create(
 152                                         engine.get_worlds,
 153                                         compare_worlds,
 154                                         function(element,uid)
 155                                                 if element.name == uid then
 156                                                         return true
 157                                                 end
 158                                                 return false
 159                                         end, --unique id compare fct
 160                                         function(element,gameid)
 161                                                 if element.gameid == gameid then
 162                                                         return true
 163                                                 end
 164                                                 return false
 165                                         end --filter fct
 166                                         )
 167
 168         filterlist.add_sort_mechanism(worldlist,"alphabetic",sort_worlds_alphabetic)
 169         filterlist.set_sortmode(worldlist,"alphabetic")
 170 end
 171
 172 --------------------------------------------------------------------------------
 173 function update_menu()
 174
 175         local formspec
 176
 177         -- handle errors
 178         if gamedata.errormessage ~= nil then
 179                 formspec = "size[12,5.2]" ..
 180                         "textarea[1,2;10,2;;ERROR: " ..
 181                         engine.formspec_escape(gamedata.errormessage) ..
 182                         ";]"..
 183                         "button[4.5,4.2;3,0.5;btn_error_confirm;" .. fgettext("Ok") .. "]"
 184         else
 185                 formspec = tabbuilder.gettab()
 186         end
 187
 188         engine.update_formspec(formspec)
 189 end
 190
 191 --------------------------------------------------------------------------------
 192 function menu.render_world_list()
 193         local retval = ""
 194
 195         local current_worldlist = filterlist.get_list(worldlist)
 196
 197         for i,v in ipairs(current_worldlist) do
 198                 if retval ~= "" then
 199                         retval = retval ..","
 200                 end
 201
 202                 retval = retval .. engine.formspec_escape(v.name) ..
 203                                         " \\[" .. engine.formspec_escape(v.gameid) .. "\\]"
 204         end
 205
 206         return retval
 207 end
 208
 209 --------------------------------------------------------------------------------
 210 function menu.render_texture_pack_list(list)
 211         local retval = ""
 212
 213         for i, v in ipairs(list) do
 214                 if retval ~= "" then
 215                         retval = retval ..","
 216                 end
 217
 218                 retval = retval .. engine.formspec_escape(v)
 219         end
 220
 221         return retval
 222 end
 223
 224 --------------------------------------------------------------------------------
 225 function menu.asyncOnlineFavourites()
 226         menu.favorites = {}
 227         engine.handle_async(
 228                 function(param)
 229                         return engine.get_favorites("online")
 230                 end,
 231                 nil,
 232                 function(result)
 233                         menu.favorites = result
 234                         engine.event_handler("Refresh")
 235                 end
 236                 )
 237 end
 238
 239 --------------------------------------------------------------------------------
 240 function menu.init()
 241         --init menu data
 242         gamemgr.update_gamelist()
 243
 244         menu.last_game  = tonumber(engine.setting_get("main_menu_last_game_idx"))
 245
 246         if type(menu.last_game) ~= "number" then
 247                 menu.last_game = 1
 248         end
 249
 250         if engine.setting_getbool("public_serverlist") then
 251                 menu.asyncOnlineFavourites()
 252         else
 253                 menu.favorites = engine.get_favorites("local")
 254         end
 255
 256         menu.defaulttexturedir = engine.get_texturepath_share() .. DIR_DELIM .. "base" ..
 257                                         DIR_DELIM .. "pack" .. DIR_DELIM
 258 end
 259
 260 --------------------------------------------------------------------------------
 261 function menu.lastgame()
 262         if menu.last_game > 0 and menu.last_game <= #gamemgr.games then
 263                 return gamemgr.games[menu.last_game]
 264         end
 265
 266         if #gamemgr.games >= 1 then
 267                 menu.last_game = 1
 268                 return gamemgr.games[menu.last_game]
 269         end
 270
 271         --error case!!
 272         return nil
 273 end
 274
 275 --------------------------------------------------------------------------------
 276 function menu.update_last_game()
 277
 278         local current_world = filterlist.get_raw_element(worldlist,
 279                                                         engine.setting_get("mainmenu_last_selected_world")
 280                                                         )
 281
 282         if current_world == nil then
 283                 return
 284         end
 285
 286         local gamespec, i = gamemgr.find_by_gameid(current_world.gameid)
 287         if i ~= nil then
 288                 menu.last_game = i
 289                 engine.setting_set("main_menu_last_game_idx",menu.last_game)
 290         end
 291 end
 292
 293 --------------------------------------------------------------------------------
 294 function menu.handle_key_up_down(fields,textlist,settingname)
 295
 296         if fields["key_up"] then
 297                 local oldidx = engine.get_textlist_index(textlist)
 298
 299                 if oldidx ~= nil and oldidx > 1 then
 300                         local newidx = oldidx -1
 301                         engine.setting_set(settingname,
 302                                 filterlist.get_raw_index(worldlist,newidx))
 303                 end
 304         end
 305
 306         if fields["key_down"] then
 307                 local oldidx = engine.get_textlist_index(textlist)
 308
 309                 if oldidx ~= nil and oldidx < filterlist.size(worldlist) then
 310                         local newidx = oldidx + 1
 311                         engine.setting_set(settingname,
 312                                 filterlist.get_raw_index(worldlist,newidx))
 313                 end
 314         end
 315 end
 316
 317 --------------------------------------------------------------------------------
 318 function tabbuilder.dialog_create_world()
 319         local mapgens = {"v6", "v7", "indev", "singlenode", "math"}
 320
 321         local current_seed = engine.setting_get("fixed_map_seed") or ""
 322         local current_mg   = engine.setting_get("mg_name")
 323
 324         local mglist = ""
 325         local selindex = 1
 326         local i = 1
 327         for k,v in pairs(mapgens) do
 328                 if current_mg == v then
 329                         selindex = i
 330                 end
 331                 i = i + 1
 332                 mglist = mglist .. v .. ","
 333         end
 334         mglist = mglist:sub(1, -2)
 335
 336         local retval =
 337                 "label[2,0;" .. fgettext("World name") .. "]"..
 338                 "field[4.5,0.4;6,0.5;te_world_name;;]" ..
 339
 340                 "label[2,1;" .. fgettext("Seed") .. "]"..
 341                 "field[4.5,1.4;6,0.5;te_seed;;".. current_seed .. "]" ..
 342
 343                 "label[2,2;" .. fgettext("Mapgen") .. "]"..
 344                 "dropdown[4.2,2;6.3;dd_mapgen;" .. mglist .. ";" .. selindex .. "]" ..
 345
 346                 "label[2,3;" .. fgettext("Game") .. "]"..
 347                 "textlist[4.2,3;5.8,2.3;games;" .. gamemgr.gamelist() ..
 348                 ";" .. menu.last_game .. ";true]" ..
 349
 350                 "button[5,5.5;2.6,0.5;world_create_confirm;" .. fgettext("Create") .. "]" ..
 351                 "button[7.5,5.5;2.8,0.5;world_create_cancel;" .. fgettext("Cancel") .. "]"
 352
 353         return retval
 354 end
 355
 356 --------------------------------------------------------------------------------
 357 function tabbuilder.dialog_delete_world()
 358         return  "label[2,2;" ..
 359                         fgettext("Delete World \"$1\"?", filterlist.get_raw_list(worldlist)[menu.world_to_del].name) .. "]"..
 360                         "button[3.5,4.2;2.6,0.5;world_delete_confirm;" .. fgettext("Yes").. "]" ..
 361                         "button[6,4.2;2.8,0.5;world_delete_cancel;" .. fgettext("No") .. "]"
 362 end
 363
 364 --------------------------------------------------------------------------------
 365
 366 function tabbuilder.gettab()
 367         local tsize = tabbuilder.tabsizes[tabbuilder.current_tab] or {width=12, height=5.2}
 368         local retval = "size[" .. tsize.width .. "," .. tsize.height .. "]"
 369
 370         if tabbuilder.show_buttons then
 371                 retval = retval .. tabbuilder.tab_header()
 372         end
 373
 374         local buildfunc = tabbuilder.tabfuncs[tabbuilder.current_tab]
 375         if buildfunc ~= nil then
 376                 retval = retval .. buildfunc()
 377         end
 378
 379         retval = retval .. modmgr.gettab(tabbuilder.current_tab)
 380         retval = retval .. gamemgr.gettab(tabbuilder.current_tab)
 381         retval = retval .. modstore.gettab(tabbuilder.current_tab)
 382
 383         return retval
 384 end
 385
 386 --------------------------------------------------------------------------------
 387 function tabbuilder.handle_create_world_buttons(fields)
 388
 389         if fields["world_create_confirm"] or
 390                 fields["key_enter"] then
 391
 392                 local worldname = fields["te_world_name"]
 393                 local gameindex = engine.get_textlist_index("games")
 394
 395                 if gameindex ~= nil and
 396                         worldname ~= "" then
 397
 398                         local message = nil
 399
 400                         if not filterlist.uid_exists_raw(worldlist,worldname) then
 401                                 engine.setting_set("mg_name",fields["dd_mapgen"])
 402                                 message = engine.create_world(worldname,gameindex)
 403                         else
 404                                 message = fgettext("A world named \"$1\" already exists", worldname)
 405                         end
 406
 407                         engine.setting_set("fixed_map_seed", fields["te_seed"])
 408
 409                         if message ~= nil then
 410                                 gamedata.errormessage = message
 411                         else
 412                                 menu.last_game = gameindex
 413                                 engine.setting_set("main_menu_last_game_idx",gameindex)
 414
 415                                 filterlist.refresh(worldlist)
 416                                 engine.setting_set("mainmenu_last_selected_world",
 417                                                                         filterlist.raw_index_by_uid(worldlist,worldname))
 418                         end
 419                 else
 420                         gamedata.errormessage =
 421                                 fgettext("No worldname given or no game selected")
 422                 end
 423         end
 424
 425         if fields["games"] then
 426                 tabbuilder.skipformupdate = true
 427                 return
 428         end
 429
 430         --close dialog
 431         tabbuilder.is_dialog = false
 432         tabbuilder.show_buttons = true
 433         tabbuilder.current_tab = engine.setting_get("main_menu_tab")
 434 end
 435
 436 --------------------------------------------------------------------------------
 437 function tabbuilder.handle_delete_world_buttons(fields)
 438
 439         if fields["world_delete_confirm"] then
 440                 if menu.world_to_del > 0 and
 441                         menu.world_to_del <= #filterlist.get_raw_list(worldlist) then
 442                         engine.delete_world(menu.world_to_del)
 443                         menu.world_to_del = 0
 444                         filterlist.refresh(worldlist)
 445                 end
 446         end
 447
 448         tabbuilder.is_dialog = false
 449         tabbuilder.show_buttons = true
 450         tabbuilder.current_tab = engine.setting_get("main_menu_tab")
 451 end
 452
 453 --------------------------------------------------------------------------------
 454 function tabbuilder.handle_multiplayer_buttons(fields)
 455
 456         if fields["te_name"] ~= nil then
 457                 gamedata.playername = fields["te_name"]
 458                 engine.setting_set("name", fields["te_name"])
 459         end
 460
 461         if fields["favourites"] ~= nil then
 462                 local event = engine.explode_textlist_event(fields["favourites"])
 463                 if event.type == "DCL" then
 464                         if event.index <= #menu.favorites then
 465                                 gamedata.address = menu.favorites[event.index].address
 466                                 gamedata.port = menu.favorites[event.index].port
 467                                 gamedata.playername             = fields["te_name"]
 468                                 if fields["te_pwd"] ~= nil then
 469                                         gamedata.password               = fields["te_pwd"]
 470                                 end
 471                                 gamedata.selected_world = 0
 472
 473                                 if menu.favorites ~= nil then
 474                                         gamedata.servername = menu.favorites[event.index].name
 475                                         gamedata.serverdescription = menu.favorites[event.index].description
 476                                 end
 477
 478                                 if gamedata.address ~= nil and
 479                                         gamedata.port ~= nil then
 480                                         engine.setting_set("address",gamedata.address)
 481                                         engine.setting_set("remote_port",gamedata.port)
 482                                         engine.start()
 483                                 end
 484                         end
 485                 end
 486
 487                 if event.type == "CHG" then
 488                         if event.index <= #menu.favorites then
 489                                 local address = menu.favorites[event.index].address
 490                                 local port = menu.favorites[event.index].port
 491
 492                                 if address ~= nil and
 493                                         port ~= nil then
 494                                         engine.setting_set("address",address)
 495                                         engine.setting_set("remote_port",port)
 496                                 end
 497
 498                                 menu.fav_selected = event.index
 499                         end
 500                 end
 501                 return
 502         end
 503
 504         if fields["key_up"] ~= nil or
 505                 fields["key_down"] ~= nil then
 506
 507                 local fav_idx = engine.get_textlist_index("favourites")
 508
 509                 if fav_idx ~= nil then
 510                         if fields["key_up"] ~= nil and fav_idx > 1 then
 511                                 fav_idx = fav_idx -1
 512                         else if fields["key_down"] and fav_idx < #menu.favorites then
 513                                 fav_idx = fav_idx +1
 514                         end end
 515                 end
 516
 517                 local address = menu.favorites[fav_idx].address
 518                 local port = menu.favorites[fav_idx].port
 519
 520                 if address ~= nil and
 521                         port ~= nil then
 522                         engine.setting_set("address",address)
 523                         engine.setting_set("remote_port",port)
 524                 end
 525
 526                 menu.fav_selected = fav_idx
 527                 return
 528         end
 529
 530         if fields["cb_public_serverlist"] ~= nil then
 531                 engine.setting_set("public_serverlist", fields["cb_public_serverlist"])
 532
 533                 if engine.setting_getbool("public_serverlist") then
 534                         menu.asyncOnlineFavourites()
 535                 else
 536                         menu.favorites = engine.get_favorites("local")
 537                 end
 538                 menu.fav_selected = nil
 539                 return
 540         end
 541
 542         if fields["btn_delete_favorite"] ~= nil then
 543                 local current_favourite = engine.get_textlist_index("favourites")
 544                 if current_favourite == nil then return end
 545                 engine.delete_favorite(current_favourite)
 546                 menu.favorites = engine.get_favorites()
 547                 menu.fav_selected = nil
 548
 549                 engine.setting_set("address","")
 550                 engine.setting_set("remote_port","30000")
 551
 552                 return
 553         end
 554
 555         if fields["btn_mp_connect"] ~= nil or
 556                 fields["key_enter"] ~= nil then
 557
 558                 gamedata.playername             = fields["te_name"]
 559                 gamedata.password               = fields["te_pwd"]
 560                 gamedata.address                = fields["te_address"]
 561                 gamedata.port                   = fields["te_port"]
 562
 563                 local fav_idx = engine.get_textlist_index("favourites")
 564
 565                 if fav_idx ~= nil and fav_idx <= #menu.favorites and
 566                         menu.favorites[fav_idx].address == fields["te_address"] and
 567                         menu.favorites[fav_idx].port    == fields["te_port"] then
 568
 569                         gamedata.servername                     = menu.favorites[fav_idx].name
 570                         gamedata.serverdescription      = menu.favorites[fav_idx].description
 571                 else
 572                         gamedata.servername                     = ""
 573                         gamedata.serverdescription      = ""
 574                 end
 575
 576                 gamedata.selected_world = 0
 577
 578                 engine.setting_set("address",fields["te_address"])
 579                 engine.setting_set("remote_port",fields["te_port"])
 580
 581                 engine.start()
 582                 return
 583         end
 584 end
 585
 586 --------------------------------------------------------------------------------
 587 function tabbuilder.handle_server_buttons(fields)
 588
 589         local world_doubleclick = false
 590
 591         if fields["srv_worlds"] ~= nil then
 592                 local event = engine.explode_textlist_event(fields["srv_worlds"])
 593
 594                 if event.type == "DCL" then
 595                         world_doubleclick = true
 596                 end
 597                 if event.type == "CHG" then
 598                         engine.setting_set("mainmenu_last_selected_world",
 599                                 filterlist.get_raw_index(worldlist,engine.get_textlist_index("srv_worlds")))
 600                 end
 601         end
 602
 603         menu.handle_key_up_down(fields,"srv_worlds","mainmenu_last_selected_world")
 604
 605         if fields["cb_creative_mode"] then
 606                 engine.setting_set("creative_mode", fields["cb_creative_mode"])
 607         end
 608
 609         if fields["cb_enable_damage"] then
 610                 engine.setting_set("enable_damage", fields["cb_enable_damage"])
 611         end
 612
 613         if fields["cb_server_announce"] then
 614                 engine.setting_set("server_announce", fields["cb_server_announce"])
 615         end
 616
 617         if fields["start_server"] ~= nil or
 618                 world_doubleclick or
 619                 fields["key_enter"] then
 620                 local selected = engine.get_textlist_index("srv_worlds")
 621                 if selected ~= nil then
 622                         gamedata.playername             = fields["te_playername"]
 623                         gamedata.password               = fields["te_passwd"]
 624                         gamedata.port                   = fields["te_serverport"]
 625                         gamedata.address                = ""
 626                         gamedata.selected_world = filterlist.get_raw_index(worldlist,selected)
 627
 628                         engine.setting_set("port",gamedata.port)
 629
 630                         menu.update_last_game(gamedata.selected_world)
 631                         engine.start()
 632                 end
 633         end
 634
 635         if fields["world_create"] ~= nil then
 636                 tabbuilder.current_tab = "dialog_create_world"
 637                 tabbuilder.is_dialog = true
 638                 tabbuilder.show_buttons = false
 639         end
 640
 641         if fields["world_delete"] ~= nil then
 642                 local selected = engine.get_textlist_index("srv_worlds")
 643                 if selected ~= nil and
 644                         selected <= filterlist.size(worldlist) then
 645                         local world = filterlist.get_list(worldlist)[selected]
 646                         if world ~= nil and
 647                                 world.name ~= nil and
 648                                 world.name ~= "" then
 649                                 menu.world_to_del = filterlist.get_raw_index(worldlist,selected)
 650                                 tabbuilder.current_tab = "dialog_delete_world"
 651                                 tabbuilder.is_dialog = true
 652                                 tabbuilder.show_buttons = false
 653                         else
 654                                 menu.world_to_del = 0
 655                         end
 656                 end
 657         end
 658
 659         if fields["world_configure"] ~= nil then
 660                 selected = engine.get_textlist_index("srv_worlds")
 661                 if selected ~= nil then
 662                         modmgr.world_config_selected_world = filterlist.get_raw_index(worldlist,selected)
 663                         if modmgr.init_worldconfig() then
 664                                 tabbuilder.current_tab = "dialog_configure_world"
 665                                 tabbuilder.is_dialog = true
 666                                 tabbuilder.show_buttons = false
 667                         end
 668                 end
 669         end
 670 end
 671
 672 --------------------------------------------------------------------------------
 673 function tabbuilder.handle_settings_buttons(fields)
 674         if fields["cb_fancy_trees"] then
 675                 engine.setting_set("new_style_leaves", fields["cb_fancy_trees"])
 676         end
 677         if fields["cb_smooth_lighting"] then
 678                 engine.setting_set("smooth_lighting", fields["cb_smooth_lighting"])
 679         end
 680         if fields["cb_3d_clouds"] then
 681                 engine.setting_set("enable_3d_clouds", fields["cb_3d_clouds"])
 682         end
 683         if fields["cb_opaque_water"] then
 684                 engine.setting_set("opaque_water", fields["cb_opaque_water"])
 685         end
 686
 687         if fields["cb_mipmapping"] then
 688                 engine.setting_set("mip_map", fields["cb_mipmapping"])
 689         end
 690         if fields["cb_anisotrophic"] then
 691                 engine.setting_set("anisotropic_filter", fields["cb_anisotrophic"])
 692         end
 693         if fields["cb_bilinear"] then
 694                 engine.setting_set("bilinear_filter", fields["cb_bilinear"])
 695         end
 696         if fields["cb_trilinear"] then
 697                 engine.setting_set("trilinear_filter", fields["cb_trilinear"])
 698         end
 699
 700         if fields["cb_shaders"] then
 701                 if (engine.setting_get("video_driver") == "direct3d8" or engine.setting_get("video_driver") == "direct3d9") then
 702                         engine.setting_set("enable_shaders", "false")
 703                         gamedata.errormessage = fgettext("To enable shaders the OpenGL driver needs to be used.")
 704                 else
 705                         engine.setting_set("enable_shaders", fields["cb_shaders"])
 706                 end
 707         end
 708         if fields["cb_pre_ivis"] then
 709                 engine.setting_set("preload_item_visuals", fields["cb_pre_ivis"])
 710         end
 711         if fields["cb_particles"] then
 712                 engine.setting_set("enable_particles", fields["cb_particles"])
 713         end
 714         if fields["cb_finite_liquid"] then
 715                 engine.setting_set("liquid_finite", fields["cb_finite_liquid"])
 716         end
 717         if fields["cb_bumpmapping"] then
 718                 engine.setting_set("enable_bumpmapping", fields["cb_bumpmapping"])
 719         end
 720         if fields["cb_parallax"] then
 721                 engine.setting_set("enable_parallax_occlusion", fields["cb_parallax"])
 722         end
 723         if fields["cb_waving_water"] then
 724                 engine.setting_set("enable_waving_water", fields["cb_waving_water"])
 725         end
 726         if fields["cb_waving_leaves"] then
 727                 engine.setting_set("enable_waving_leaves", fields["cb_waving_leaves"])
 728         end
 729         if fields["cb_waving_plants"] then
 730                 engine.setting_set("enable_waving_plants", fields["cb_waving_plants"])
 731         end
 732         if fields["btn_change_keys"] ~= nil then
 733                 engine.show_keys_menu()
 734         end
 735 end
 736
 737 --------------------------------------------------------------------------------
 738 function tabbuilder.handle_singleplayer_buttons(fields)
 739
 740         local world_doubleclick = false
 741
 742         if fields["sp_worlds"] ~= nil then
 743                 local event = engine.explode_textlist_event(fields["sp_worlds"])
 744
 745                 if event.type == "DCL" then
 746                         world_doubleclick = true
 747                 end
 748
 749                 if event.type == "CHG" then
 750                         engine.setting_set("mainmenu_last_selected_world",
 751                                 filterlist.get_raw_index(worldlist,engine.get_textlist_index("sp_worlds")))
 752                 end
 753         end
 754
 755         menu.handle_key_up_down(fields,"sp_worlds","mainmenu_last_selected_world")
 756
 757         if fields["cb_creative_mode"] then
 758                 engine.setting_set("creative_mode", fields["cb_creative_mode"])
 759         end
 760
 761         if fields["cb_enable_damage"] then
 762                 engine.setting_set("enable_damage", fields["cb_enable_damage"])
 763         end
 764
 765         if fields["play"] ~= nil or
 766                 world_doubleclick or
 767                 fields["key_enter"] then
 768                 local selected = engine.get_textlist_index("sp_worlds")
 769                 if selected ~= nil then
 770                         gamedata.selected_world = filterlist.get_raw_index(worldlist,selected)
 771                         gamedata.singleplayer   = true
 772
 773                         menu.update_last_game(gamedata.selected_world)
 774
 775                         engine.start()
 776                 end
 777         end
 778
 779         if fields["world_create"] ~= nil then
 780                 tabbuilder.current_tab = "dialog_create_world"
 781                 tabbuilder.is_dialog = true
 782                 tabbuilder.show_buttons = false
 783         end
 784
 785         if fields["world_delete"] ~= nil then
 786                 local selected = engine.get_textlist_index("sp_worlds")
 787                 if selected ~= nil and
 788                         selected <= filterlist.size(worldlist) then
 789                         local world = filterlist.get_list(worldlist)[selected]
 790                         if world ~= nil and
 791                                 world.name ~= nil and
 792                                 world.name ~= "" then
 793                                 menu.world_to_del = filterlist.get_raw_index(worldlist,selected)
 794                                 tabbuilder.current_tab = "dialog_delete_world"
 795                                 tabbuilder.is_dialog = true
 796                                 tabbuilder.show_buttons = false
 797                         else
 798                                 menu.world_to_del = 0
 799                         end
 800                 end
 801         end
 802
 803         if fields["world_configure"] ~= nil then
 804                 selected = engine.get_textlist_index("sp_worlds")
 805                 if selected ~= nil then
 806                         modmgr.world_config_selected_world = filterlist.get_raw_index(worldlist,selected)
 807                         if modmgr.init_worldconfig() then
 808                                 tabbuilder.current_tab = "dialog_configure_world"
 809                                 tabbuilder.is_dialog = true
 810                                 tabbuilder.show_buttons = false
 811                         end
 812                 end
 813         end
 814 end
 815
 816 --------------------------------------------------------------------------------
 817 function tabbuilder.handle_texture_pack_buttons(fields)
 818         if fields["TPs"] ~= nil then
 819                 local event = engine.explode_textlist_event(fields["TPs"])
 820                 if event.type == "CHG" or event.type == "DCL" then
 821                         local index = engine.get_textlist_index("TPs")
 822                         engine.setting_set("mainmenu_last_selected_TP",
 823                                 index)
 824                         local list = filter_texture_pack_list(engine.get_dirlist(engine.get_texturepath(), true))
 825                         local current_index = engine.get_textlist_index("TPs")
 826                         if current_index ~= nil and #list >= current_index then
 827                                 local new_path = engine.get_texturepath()..DIR_DELIM..list[current_index]
 828                                 if list[current_index] == "None" then new_path = "" end
 829
 830                                 engine.setting_set("texture_path", new_path)
 831                         end
 832                 end
 833         end
 834 end
 835
 836 --------------------------------------------------------------------------------
 837 function tabbuilder.tab_header()
 838
 839         if tabbuilder.last_tab_index == nil then
 840                 tabbuilder.last_tab_index = 1
 841         end
 842
 843         local toadd = ""
 844
 845         for i=1,#tabbuilder.current_buttons,1 do
 846
 847                 if toadd ~= "" then
 848                         toadd = toadd .. ","
 849                 end
 850
 851                 toadd = toadd .. tabbuilder.current_buttons[i].caption
 852         end
 853         return "tabheader[-0.3,-0.99;main_tab;" .. toadd ..";" .. tabbuilder.last_tab_index .. ";true;false]"
 854 end
 855
 856 --------------------------------------------------------------------------------
 857 function tabbuilder.handle_tab_buttons(fields)
 858
 859         if fields["main_tab"] then
 860                 local index = tonumber(fields["main_tab"])
 861                 tabbuilder.last_tab_index = index
 862                 tabbuilder.current_tab = tabbuilder.current_buttons[index].name
 863
 864                 engine.setting_set("main_menu_tab",tabbuilder.current_tab)
 865         end
 866
 867         --handle tab changes
 868         if tabbuilder.current_tab ~= tabbuilder.old_tab then
 869                 if tabbuilder.current_tab ~= "singleplayer" and not tabbuilder.is_dialog then
 870                         menu.update_gametype(true)
 871                 end
 872         end
 873
 874         if tabbuilder.current_tab == "singleplayer" then
 875                 menu.update_gametype()
 876         end
 877
 878         tabbuilder.old_tab = tabbuilder.current_tab
 879 end
 880
 881 --------------------------------------------------------------------------------
 882 function tabbuilder.tab_multiplayer()
 883
 884         local retval =
 885                 "vertlabel[0,-0.25;".. fgettext("CLIENT") .. "]" ..
 886                 "label[1,-0.25;".. fgettext("Favorites:") .. "]"..
 887                 "label[1,4.25;".. fgettext("Address/Port") .. "]"..
 888                 "label[9,2.75;".. fgettext("Name/Password") .. "]" ..
 889                 "field[1.25,5.25;5.5,0.5;te_address;;" ..engine.setting_get("address") .."]" ..
 890                 "field[6.75,5.25;2.25,0.5;te_port;;" ..engine.setting_get("remote_port") .."]" ..
 891                 "checkbox[1,3.6;cb_public_serverlist;".. fgettext("Public Serverlist") .. ";" ..
 892                 dump(engine.setting_getbool("public_serverlist")) .. "]"
 893
 894         if not engine.setting_getbool("public_serverlist") then
 895                 retval = retval ..
 896                 "button[6.45,3.95;2.25,0.5;btn_delete_favorite;".. fgettext("Delete") .. "]"
 897         end
 898
 899         retval = retval ..
 900                 "button[9,4.95;2.5,0.5;btn_mp_connect;".. fgettext("Connect") .. "]" ..
 901                 "field[9.3,3.75;2.5,0.5;te_name;;" ..engine.setting_get("name") .."]" ..
 902                 "pwdfield[9.3,4.5;2.5,0.5;te_pwd;]" ..
 903                 "textarea[9.3,0.25;2.5,2.75;;"
 904         if menu.fav_selected ~= nil and
 905                 menu.favorites[menu.fav_selected].description ~= nil then
 906                 retval = retval ..
 907                         engine.formspec_escape(menu.favorites[menu.fav_selected].description,true)
 908         end
 909
 910         retval = retval ..
 911                 ";]" ..
 912                 "textlist[1,0.35;7.5,3.35;favourites;"
 913
 914         local render_details = engine.setting_getbool("public_serverlist")
 915
 916         if #menu.favorites > 0 then
 917                 retval = retval .. menu.render_favorite(menu.favorites[1],render_details)
 918
 919                 for i=2,#menu.favorites,1 do
 920                         retval = retval .. "," .. menu.render_favorite(menu.favorites[i],render_details)
 921                 end
 922         end
 923
 924         if menu.fav_selected ~= nil then
 925                 retval = retval .. ";" .. menu.fav_selected .. "]"
 926         else
 927                 retval = retval .. ";0]"
 928         end
 929
 930         return retval
 931 end
 932
 933 --------------------------------------------------------------------------------
 934 function tabbuilder.tab_server()
 935
 936         local index = filterlist.get_current_index(worldlist,
 937                                 tonumber(engine.setting_get("mainmenu_last_selected_world"))
 938                                 )
 939
 940         local retval =
 941                 "button[4,4.15;2.6,0.5;world_delete;".. fgettext("Delete") .. "]" ..
 942                 "button[6.5,4.15;2.8,0.5;world_create;".. fgettext("New") .. "]" ..
 943                 "button[9.2,4.15;2.55,0.5;world_configure;".. fgettext("Configure") .. "]" ..
 944                 "button[8.5,4.9;3.25,0.5;start_server;".. fgettext("Start Game") .. "]" ..
 945                 "label[4,-0.25;".. fgettext("Select World:") .. "]"..
 946                 "vertlabel[0,-0.25;".. fgettext("START SERVER") .. "]" ..
 947                 "checkbox[0.5,0.25;cb_creative_mode;".. fgettext("Creative Mode") .. ";" ..
 948                 dump(engine.setting_getbool("creative_mode")) .. "]"..
 949                 "checkbox[0.5,0.7;cb_enable_damage;".. fgettext("Enable Damage") .. ";" ..
 950                 dump(engine.setting_getbool("enable_damage")) .. "]"..
 951                 "checkbox[0.5,1.15;cb_server_announce;".. fgettext("Public") .. ";" ..
 952                 dump(engine.setting_getbool("server_announce")) .. "]"..
 953                 "field[0.8,3.2;3,0.5;te_playername;".. fgettext("Name") .. ";" ..
 954                 engine.setting_get("name") .. "]" ..
 955                 "pwdfield[0.8,4.2;3,0.5;te_passwd;".. fgettext("Password") .. "]" ..
 956                 "field[0.8,5.2;3,0.5;te_serverport;".. fgettext("Server Port") .. ";" ..
 957                 engine.setting_get("port") .."]" ..
 958                 "textlist[4,0.25;7.5,3.7;srv_worlds;" ..
 959                 menu.render_world_list() ..
 960                 ";" .. index .. "]"
 961
 962         return retval
 963 end
 964
 965 --------------------------------------------------------------------------------
 966 function tabbuilder.tab_settings()
 967         tab_string =
 968                         "vertlabel[0,0;" .. fgettext("SETTINGS") .. "]" ..
 969                         "checkbox[1,0;cb_fancy_trees;".. fgettext("Fancy Trees") .. ";"
 970                                         .. dump(engine.setting_getbool("new_style_leaves")) .. "]"..
 971                         "checkbox[1,0.5;cb_smooth_lighting;".. fgettext("Smooth Lighting")
 972                                         .. ";".. dump(engine.setting_getbool("smooth_lighting")) .. "]"..
 973                         "checkbox[1,1;cb_3d_clouds;".. fgettext("3D Clouds") .. ";"
 974                                         .. dump(engine.setting_getbool("enable_3d_clouds")) .. "]"..
 975                         "checkbox[1,1.5;cb_opaque_water;".. fgettext("Opaque Water") .. ";"
 976                                         .. dump(engine.setting_getbool("opaque_water")) .. "]"..
 977                         "checkbox[1,2.0;cb_pre_ivis;".. fgettext("Preload item visuals") .. ";"
 978                                         .. dump(engine.setting_getbool("preload_item_visuals")) .. "]"..
 979                         "checkbox[1,2.5;cb_particles;".. fgettext("Enable Particles") .. ";"
 980                                         .. dump(engine.setting_getbool("enable_particles"))     .. "]"..
 981                         "checkbox[1,3.0;cb_finite_liquid;".. fgettext("Finite Liquid") .. ";"
 982                                         .. dump(engine.setting_getbool("liquid_finite")) .. "]"..
 983
 984                         "checkbox[4.5,0;cb_mipmapping;".. fgettext("Mip-Mapping") .. ";"
 985                                         .. dump(engine.setting_getbool("mip_map")) .. "]"..
 986                         "checkbox[4.5,0.5;cb_anisotrophic;".. fgettext("Anisotropic Filtering") .. ";"
 987                                         .. dump(engine.setting_getbool("anisotropic_filter")) .. "]"..
 988                         "checkbox[4.5,1.0;cb_bilinear;".. fgettext("Bi-Linear Filtering") .. ";"
 989                                         .. dump(engine.setting_getbool("bilinear_filter")) .. "]"..
 990                         "checkbox[4.5,1.5;cb_trilinear;".. fgettext("Tri-Linear Filtering") .. ";"
 991                                         .. dump(engine.setting_getbool("trilinear_filter")) .. "]"..
 992
 993                         "checkbox[8,0;cb_shaders;".. fgettext("Shaders") .. ";"
 994                                         .. dump(engine.setting_getbool("enable_shaders")) .. "]"..
 995                         "button[1,4.5;2.25,0.5;btn_change_keys;".. fgettext("Change keys") .. "]"
 996
 997 if engine.setting_getbool("enable_shaders") then
 998         tab_string = tab_string ..
 999                         "checkbox[8,0.5;cb_bumpmapping;".. fgettext("Bumpmapping") .. ";"
1000                                         .. dump(engine.setting_getbool("enable_bumpmapping")) .. "]"..
1001                         "checkbox[8,1.0;cb_parallax;".. fgettext("Parallax Occlusion") .. ";"
1002                                         .. dump(engine.setting_getbool("enable_parallax_occlusion")) .. "]"..
1003                         "checkbox[8,1.5;cb_waving_water;".. fgettext("Waving Water") .. ";"
1004                                         .. dump(engine.setting_getbool("enable_waving_water")) .. "]"..
1005                         "checkbox[8,2.0;cb_waving_leaves;".. fgettext("Waving Leaves") .. ";"
1006                                         .. dump(engine.setting_getbool("enable_waving_leaves")) .. "]"..
1007                         "checkbox[8,2.5;cb_waving_plants;".. fgettext("Waving Plants") .. ";"
1008                                         .. dump(engine.setting_getbool("enable_waving_plants")) .. "]"
1009 else
1010         tab_string = tab_string ..
1011                         "textlist[8.33,0.7;4,1;;#888888" .. fgettext("Bumpmapping") .. ";0;true]" ..
1012                         "textlist[8.33,1.2;4,1;;#888888" .. fgettext("Parallax Occlusion") .. ";0;true]" ..
1013                         "textlist[8.33,1.7;4,1;;#888888" .. fgettext("Waving Water") .. ";0;true]" ..
1014                         "textlist[8.33,2.2;4,1;;#888888" .. fgettext("Waving Leaves") .. ";0;true]" ..
1015                         "textlist[8.33,2.7;4,1;;#888888" .. fgettext("Waving Plants") .. ";0;true]"
1016         end
1017 return tab_string
1018 end
1019
1020 --------------------------------------------------------------------------------
1021 function tabbuilder.tab_singleplayer()
1022
1023         local index = filterlist.get_current_index(worldlist,
1024                                 tonumber(engine.setting_get("mainmenu_last_selected_world"))
1025                                 )
1026
1027         return  "button[4,4.15;2.6,0.5;world_delete;".. fgettext("Delete") .. "]" ..
1028                         "button[6.5,4.15;2.8,0.5;world_create;".. fgettext("New") .. "]" ..
1029                         "button[9.2,4.15;2.55,0.5;world_configure;".. fgettext("Configure") .. "]" ..
1030                         "button[8.5,4.95;3.25,0.5;play;".. fgettext("Play") .. "]" ..
1031                         "label[4,-0.25;".. fgettext("Select World:") .. "]"..
1032                         "vertlabel[0,-0.25;".. fgettext("SINGLE PLAYER") .. "]" ..
1033                         "checkbox[0.5,0.25;cb_creative_mode;".. fgettext("Creative Mode") .. ";" ..
1034                         dump(engine.setting_getbool("creative_mode")) .. "]"..
1035                         "checkbox[0.5,0.7;cb_enable_damage;".. fgettext("Enable Damage") .. ";" ..
1036                         dump(engine.setting_getbool("enable_damage")) .. "]"..
1037                         "textlist[4,0.25;7.5,3.7;sp_worlds;" ..
1038                         menu.render_world_list() ..
1039                         ";" .. index .. "]" ..
1040                         menubar.formspec
1041 end
1042
1043 --------------------------------------------------------------------------------
1044 function tabbuilder.tab_texture_packs()
1045         local retval = "label[4,-0.25;".. fgettext("Select texture pack:") .. "]"..
1046                         "vertlabel[0,-0.25;".. fgettext("TEXTURE PACKS") .. "]" ..
1047                         "textlist[4,0.25;7.5,5.0;TPs;"
1048
1049         local current_texture_path = engine.setting_get("texture_path")
1050         local list = filter_texture_pack_list(engine.get_dirlist(engine.get_texturepath(), true))
1051         local index = tonumber(engine.setting_get("mainmenu_last_selected_TP"))
1052
1053         if index == nil then index = 1 end
1054
1055         if current_texture_path == "" then
1056                 retval = retval ..
1057                         menu.render_texture_pack_list(list) ..
1058                         ";" .. index .. "]"
1059                 return retval
1060         end
1061
1062         local infofile = current_texture_path ..DIR_DELIM.."info.txt"
1063         local infotext = ""
1064         local f = io.open(infofile, "r")
1065         if f==nil then
1066                 infotext = fgettext("No information available")
1067         else
1068                 infotext = f:read("*all")
1069                 f:close()
1070         end
1071
1072         local screenfile = current_texture_path..DIR_DELIM.."screenshot.png"
1073         local no_screenshot = nil
1074         if not file_exists(screenfile) then
1075                 screenfile = nil
1076                 no_screenshot = menu.defaulttexturedir .. "no_screenshot.png"
1077         end
1078
1079         return  retval ..
1080                         menu.render_texture_pack_list(list) ..
1081                         ";" .. index .. "]" ..
1082                         "image[0.65,0.25;4.0,3.7;"..engine.formspec_escape(screenfile or no_screenshot).."]"..
1083                         "textarea[1.0,3.25;3.7,1.5;;"..engine.formspec_escape(infotext or "")..";]"
1084 end
1085
1086 --------------------------------------------------------------------------------
1087 function tabbuilder.tab_credits()
1088         local logofile = menu.defaulttexturedir .. "logo.png"
1089         return  "vertlabel[0,-0.5;CREDITS]" ..
1090                         "label[0.5,3;Minetest " .. engine.get_version() .. "]" ..
1091                         "label[0.5,3.3;http://minetest.net]" ..
1092                         "image[0.5,1;" .. engine.formspec_escape(logofile) .. "]" ..
1093                         "textlist[3.5,-0.25;8.5,5.8;list_credits;" ..
1094                         "#FFFF00" .. fgettext("Core Developers") .."," ..
1095                         "Perttu Ahola (celeron55) <celeron55@gmail.com>,"..
1096                         "Ryan Kwolek (kwolekr) <kwolekr@minetest.net>,"..
1097                         "PilzAdam <pilzadam@minetest.net>," ..
1098                         "Ilya Zhuravlev (xyz) <xyz@minetest.net>,"..
1099                         "Lisa Milne (darkrose) <lisa@ltmnet.com>,"..
1100                         "Maciej Kasatkin (RealBadAngel) <mk@realbadangel.pl>,"..
1101                         "proller <proler@gmail.com>,"..
1102                         "sfan5 <sfan5@live.de>,"..
1103                         "kahrl <kahrl@gmx.net>,"..
1104                         "sapier,"..
1105                         "ShadowNinja <shadowninja@minetest.net>,"..
1106                         "Nathanael Courant (Nore/Novatux) <nore@mesecons.net>,"..
1107                         "BlockMen,"..
1108                         ","..
1109                         "#FFFF00" .. fgettext("Active Contributors") .. "," ..
1110                         "Vanessa Ezekowitz (VanessaE) <vanessaezekowitz@gmail.com>,"..
1111                         "Jurgen Doser (doserj) <jurgen.doser@gmail.com>,"..
1112                         "Jeija <jeija@mesecons.net>,"..
1113                         "MirceaKitsune <mirceakitsune@gmail.com>,"..
1114                         "dannydark <the_skeleton_of_a_child@yahoo.co.uk>,"..
1115                         "0gb.us <0gb.us@0gb.us>,"..
1116                         "," ..
1117                         "#FFFF00" .. fgettext("Previous Contributors") .. "," ..
1118                         "Guiseppe Bilotta (Oblomov) <guiseppe.bilotta@gmail.com>,"..
1119                         "Jonathan Neuschafer <j.neuschaefer@gmx.net>,"..
1120                         "Nils Dagsson Moskopp (erlehmann) <nils@dieweltistgarnichtso.net>,"..
1121                         "Constantin Wenger (SpeedProg) <constantin.wenger@googlemail.com>,"..
1122                         "matttpt <matttpt@gmail.com>,"..
1123                         "JacobF <queatz@gmail.com>,"..
1124                         ";0;true]"
1125 end
1126
1127 --------------------------------------------------------------------------------
1128 function tabbuilder.init()
1129         tabbuilder.tabfuncs = {
1130                 singleplayer  = tabbuilder.tab_singleplayer,
1131                 multiplayer   = tabbuilder.tab_multiplayer,
1132                 server        = tabbuilder.tab_server,
1133                 settings      = tabbuilder.tab_settings,
1134                 texture_packs = tabbuilder.tab_texture_packs,
1135                 credits       = tabbuilder.tab_credits,
1136                 dialog_create_world = tabbuilder.dialog_create_world,
1137                 dialog_delete_world = tabbuilder.dialog_delete_world
1138         }
1139
1140         tabbuilder.tabsizes = {
1141                 dialog_create_world = {width=12, height=7},
1142                 dialog_delete_world = {width=12, height=5.2}
1143         }
1144
1145         tabbuilder.current_tab = engine.setting_get("main_menu_tab")
1146
1147         if tabbuilder.current_tab == nil or
1148                 tabbuilder.current_tab == "" then
1149                 tabbuilder.current_tab = "singleplayer"
1150                 engine.setting_set("main_menu_tab",tabbuilder.current_tab)
1151         end
1152
1153         --initialize tab buttons
1154         tabbuilder.last_tab = nil
1155         tabbuilder.show_buttons = true
1156
1157         tabbuilder.current_buttons = {}
1158         table.insert(tabbuilder.current_buttons,{name="singleplayer", caption=fgettext("Singleplayer")})
1159         table.insert(tabbuilder.current_buttons,{name="multiplayer", caption=fgettext("Client")})
1160         table.insert(tabbuilder.current_buttons,{name="server", caption=fgettext("Server")})
1161         table.insert(tabbuilder.current_buttons,{name="settings", caption=fgettext("Settings")})
1162         table.insert(tabbuilder.current_buttons,{name="texture_packs", caption=fgettext("Texture Packs")})
1163
1164         if engine.setting_getbool("main_menu_game_mgr") then
1165                 table.insert(tabbuilder.current_buttons,{name="game_mgr", caption=fgettext("Games")})
1166         end
1167
1168         if engine.setting_getbool("main_menu_mod_mgr") then
1169                 table.insert(tabbuilder.current_buttons,{name="mod_mgr", caption=fgettext("Mods")})
1170         end
1171         table.insert(tabbuilder.current_buttons,{name="credits", caption=fgettext("Credits")})
1172
1173
1174         for i=1,#tabbuilder.current_buttons,1 do
1175                 if tabbuilder.current_buttons[i].name == tabbuilder.current_tab then
1176                         tabbuilder.last_tab_index = i
1177                 end
1178         end
1179
1180         if tabbuilder.current_tab ~= "singleplayer" then
1181                 menu.update_gametype(true)
1182         else
1183                 menu.update_gametype()
1184         end
1185 end
1186
1187 --------------------------------------------------------------------------------
1188 function tabbuilder.checkretval(retval)
1189
1190         if retval ~= nil then
1191                 if retval.current_tab ~= nil then
1192                         tabbuilder.current_tab = retval.current_tab
1193                 end
1194
1195                 if retval.is_dialog ~= nil then
1196                         tabbuilder.is_dialog = retval.is_dialog
1197                 end
1198
1199                 if retval.show_buttons ~= nil then
1200                         tabbuilder.show_buttons = retval.show_buttons
1201                 end
1202
1203                 if retval.skipformupdate ~= nil then
1204                         tabbuilder.skipformupdate = retval.skipformupdate
1205                 end
1206
1207                 if retval.ignore_menu_quit == true then
1208                         tabbuilder.ignore_menu_quit = true
1209                 else
1210                         tabbuilder.ignore_menu_quit = false
1211                 end
1212         end
1213 end
1214
1215 --------------------------------------------------------------------------------
1216 --------------------------------------------------------------------------------
1217 -- initialize callbacks
1218 --------------------------------------------------------------------------------
1219 --------------------------------------------------------------------------------
1220 engine.button_handler = function(fields)
1221         --print("Buttonhandler: tab: " .. tabbuilder.current_tab .. " fields: " .. dump(fields))
1222
1223         if fields["btn_error_confirm"] then
1224                 gamedata.errormessage = nil
1225         end
1226
1227         local retval = modmgr.handle_buttons(tabbuilder.current_tab,fields)
1228         tabbuilder.checkretval(retval)
1229
1230         retval = gamemgr.handle_buttons(tabbuilder.current_tab,fields)
1231         tabbuilder.checkretval(retval)
1232
1233         retval = modstore.handle_buttons(tabbuilder.current_tab,fields)
1234         tabbuilder.checkretval(retval)
1235
1236         if tabbuilder.current_tab == "dialog_create_world" then
1237                 tabbuilder.handle_create_world_buttons(fields)
1238         end
1239
1240         if tabbuilder.current_tab == "dialog_delete_world" then
1241                 tabbuilder.handle_delete_world_buttons(fields)
1242         end
1243
1244         if tabbuilder.current_tab == "singleplayer" then
1245                 tabbuilder.handle_singleplayer_buttons(fields)
1246         end
1247
1248         if tabbuilder.current_tab == "texture_packs" then
1249                 tabbuilder.handle_texture_pack_buttons(fields)
1250         end
1251
1252         if tabbuilder.current_tab == "multiplayer" then
1253                 tabbuilder.handle_multiplayer_buttons(fields)
1254         end
1255
1256         if tabbuilder.current_tab == "settings" then
1257                 tabbuilder.handle_settings_buttons(fields)
1258         end
1259
1260         if tabbuilder.current_tab == "server" then
1261                 tabbuilder.handle_server_buttons(fields)
1262         end
1263
1264         --tab buttons
1265         tabbuilder.handle_tab_buttons(fields)
1266
1267         --menubar buttons
1268         menubar.handle_buttons(fields)
1269
1270         if not tabbuilder.skipformupdate then
1271                 --update menu
1272                 update_menu()
1273         else
1274                 tabbuilder.skipformupdate = false
1275         end
1276 end
1277
1278 --------------------------------------------------------------------------------
1279 engine.event_handler = function(event)
1280         if event == "MenuQuit" then
1281                 if tabbuilder.is_dialog then
1282                         if tabbuilder.ignore_menu_quit then
1283                                 return
1284                         end
1285
1286                         tabbuilder.is_dialog = false
1287                         tabbuilder.show_buttons = true
1288                         tabbuilder.current_tab = engine.setting_get("main_menu_tab")
1289                         menu.update_gametype()
1290                         update_menu()
1291                 else
1292                         engine.close()
1293                 end
1294         end
1295
1296         if event == "Refresh" then
1297                 update_menu()
1298         end
1299 end
1300
1301 --------------------------------------------------------------------------------
1302 function menu.update_gametype(reset)
1303         local game = menu.lastgame()
1304
1305         if reset or game == nil then
1306                 mm_texture.reset()
1307                 engine.set_topleft_text("")
1308                 filterlist.set_filtercriteria(worldlist,nil)
1309         else
1310                 mm_texture.update(tabbuilder.current_tab,game)
1311                 engine.set_topleft_text(game.name)
1312                 filterlist.set_filtercriteria(worldlist,game.id)
1313         end
1314 end
1315
1316 --------------------------------------------------------------------------------
1317 --------------------------------------------------------------------------------
1318 -- menu startup
1319 --------------------------------------------------------------------------------
1320 --------------------------------------------------------------------------------
1321 init_globals()
1322 mm_texture.init()
1323 menu.init()
1324 tabbuilder.init()
1325 menubar.refresh()
1326 modstore.init()
1327
1328 engine.sound_play("main_menu", true)
1329
1330 update_menu()