qcsrc/server/teamplay.qc

   1 #include "teamplay.qh"
   2
   3 #include "client.qh"
   4 #include "race.qh"
   5 #include "scores.qh"
   6 #include "scores_rules.qh"
   7
   8 #include "bot/api.qh"
   9
  10 #include "command/vote.qh"
  11
  12 #include "mutators/_mod.qh"
  13
  14 #include "../common/deathtypes/all.qh"
  15 #include "../common/gamemodes/_mod.qh"
  16 #include "../common/teams.qh"
  17
  18 void TeamchangeFrags(entity e)
  19 {
  20         PlayerScore_Clear(e);
  21 }
  22
  23 void LogTeamchange(float player_id, float team_number, float type)
  24 {
  25         if(!autocvar_sv_eventlog)
  26                 return;
  27
  28         if(player_id < 1)
  29                 return;
  30
  31         GameLogEcho(strcat(":team:", ftos(player_id), ":", ftos(team_number), ":", ftos(type)));
  32 }
  33
  34 void default_delayedinit(entity this)
  35 {
  36         if(!scores_initialized)
  37                 ScoreRules_generic();
  38 }
  39
  40 void ActivateTeamplay()
  41 {
  42         serverflags |= SERVERFLAG_TEAMPLAY;
  43         teamplay = 1;
  44         cvar_set("teamplay", "2");  // DP needs this for sending proper getstatus replies.
  45 }
  46
  47 void InitGameplayMode()
  48 {
  49         VoteReset();
  50
  51         // find out good world mins/maxs bounds, either the static bounds found by looking for solid, or the mapinfo specified bounds
  52         get_mi_min_max(1);
  53         world.mins = mi_min;
  54         world.maxs = mi_max;
  55
  56         MapInfo_LoadMapSettings(mapname);
  57         serverflags &= ~SERVERFLAG_TEAMPLAY;
  58         teamplay = 0;
  59         cvar_set("teamplay", "0");  // DP needs this for sending proper getstatus replies.
  60
  61         if (!cvar_value_issafe(world.fog))
  62         {
  63                 LOG_INFO("The current map contains a potentially harmful fog setting, ignored\n");
  64                 world.fog = string_null;
  65         }
  66         if(MapInfo_Map_fog != "")
  67                 if(MapInfo_Map_fog == "none")
  68                         world.fog = string_null;
  69                 else
  70                         world.fog = strzone(MapInfo_Map_fog);
  71         clientstuff = strzone(MapInfo_Map_clientstuff);
  72
  73         MapInfo_ClearTemps();
  74
  75         gamemode_name = MapInfo_Type_ToText(MapInfo_LoadedGametype);
  76
  77         cache_mutatormsg = strzone("");
  78         cache_lastmutatormsg = strzone("");
  79
  80         InitializeEntity(NULL, default_delayedinit, INITPRIO_GAMETYPE_FALLBACK);
  81 }
  82
  83 string GetClientVersionMessage(entity this)
  84 {
  85         string versionmsg;
  86         if (this.version_mismatch) {
  87                 if(this.version < autocvar_gameversion) {
  88                         versionmsg = "^3Your client version is outdated.\n\n\n### YOU WON'T BE ABLE TO PLAY ON THIS SERVER ###\n\n\nPlease update!!!^8";
  89                 } else {
  90                         versionmsg = "^3This server is using an outdated Xonotic version.\n\n\n ### THIS SERVER IS INCOMPATIBLE AND THUS YOU CANNOT JOIN ###.^8";
  91                 }
  92         } else {
  93                 versionmsg = "^2client version and server version are compatible.^8";
  94         }
  95         return versionmsg;
  96 }
  97
  98 string getwelcomemessage(entity this)
  99 {
 100         string s, modifications, motd;
 101
 102         MUTATOR_CALLHOOK(BuildMutatorsPrettyString, "");
 103         modifications = M_ARGV(0, string);
 104
 105         if(g_weaponarena)
 106         {
 107                 if(g_weaponarena_random)
 108                         modifications = strcat(modifications, ", ", ftos(g_weaponarena_random), " of ", g_weaponarena_list, " Arena");
 109                 else
 110                         modifications = strcat(modifications, ", ", g_weaponarena_list, " Arena");
 111         }
 112         else if(cvar("g_balance_blaster_weaponstart") == 0)
 113                 modifications = strcat(modifications, ", No start weapons");
 114         if(cvar("sv_gravity") < stof(cvar_defstring("sv_gravity")))
 115                 modifications = strcat(modifications, ", Low gravity");
 116         if(g_weapon_stay && !g_cts)
 117                 modifications = strcat(modifications, ", Weapons stay");
 118         if(g_jetpack)
 119                 modifications = strcat(modifications, ", Jet pack");
 120         if(autocvar_g_powerups == 0)
 121                 modifications = strcat(modifications, ", No powerups");
 122         if(autocvar_g_powerups > 0)
 123                 modifications = strcat(modifications, ", Powerups");
 124         modifications = substring(modifications, 2, strlen(modifications) - 2);
 125
 126         string versionmessage = GetClientVersionMessage(this);
 127
 128         s = strcat("This is Xonotic ", autocvar_g_xonoticversion, "\n", versionmessage);
 129         s = strcat(s, "^8\n\nmatch type is ^1", gamemode_name, "^8\n");
 130
 131         if(modifications != "")
 132                 s = strcat(s, "^8\nactive modifications: ^3", modifications, "^8\n");
 133
 134         if(cache_lastmutatormsg != autocvar_g_mutatormsg)
 135         {
 136                 if(cache_lastmutatormsg)
 137                         strunzone(cache_lastmutatormsg);
 138                 if(cache_mutatormsg)
 139                         strunzone(cache_mutatormsg);
 140                 cache_lastmutatormsg = strzone(autocvar_g_mutatormsg);
 141                 cache_mutatormsg = strzone(cache_lastmutatormsg);
 142         }
 143
 144         if (cache_mutatormsg != "") {
 145                 s = strcat(s, "\n\n^8special gameplay tips: ^7", cache_mutatormsg);
 146         }
 147
 148         string mutator_msg = "";
 149         MUTATOR_CALLHOOK(BuildGameplayTipsString, mutator_msg);
 150         mutator_msg = M_ARGV(0, string);
 151
 152         s = strcat(s, mutator_msg); // trust that the mutator will do proper formatting
 153
 154         motd = autocvar_sv_motd;
 155         if (motd != "") {
 156                 s = strcat(s, "\n\n^8MOTD: ^7", strreplace("\\n", "\n", motd));
 157         }
 158         return s;
 159 }
 160
 161 void SetPlayerColors(entity pl, float _color)
 162 {
 163         /*string s;
 164         s = ftos(cl);
 165         stuffcmd(pl, strcat("color ", s, " ", s, "\n")  );
 166         pl.team = cl + 1;
 167         //pl.clientcolors = pl.clientcolors - (pl.clientcolors & 15) + cl;
 168         pl.clientcolors = 16*cl + cl;*/
 169
 170         float pants, shirt;
 171         pants = _color & 0x0F;
 172         shirt = _color & 0xF0;
 173
 174
 175         if(teamplay) {
 176                 setcolor(pl, 16*pants + pants);
 177         } else {
 178                 setcolor(pl, shirt + pants);
 179         }
 180 }
 181
 182 void SetPlayerTeam(entity pl, float t, float s, float noprint)
 183 {
 184         float _color;
 185
 186         if(t == 4)
 187                 _color = NUM_TEAM_4 - 1;
 188         else if(t == 3)
 189                 _color = NUM_TEAM_3 - 1;
 190         else if(t == 2)
 191                 _color = NUM_TEAM_2 - 1;
 192         else
 193                 _color = NUM_TEAM_1 - 1;
 194
 195         SetPlayerColors(pl,_color);
 196
 197         if(t != s) {
 198                 LogTeamchange(pl.playerid, pl.team, 3);  // log manual team join
 199
 200                 if(!noprint)
 201                 bprint(pl.netname, "^7 has changed from ", Team_NumberToColoredFullName(s), "^7 to ", Team_NumberToColoredFullName(t), "\n");
 202         }
 203
 204 }
 205
 206 // set c1...c4 to show what teams are allowed
 207 void CheckAllowedTeams (entity for_whom)
 208 {
 209         int dm = 0;
 210
 211         c1 = c2 = c3 = c4 = -1;
 212         cb1 = cb2 = cb3 = cb4 = 0;
 213
 214         string teament_name = string_null;
 215
 216         bool mutator_returnvalue = MUTATOR_CALLHOOK(GetTeamCount, dm, teament_name);
 217         dm = M_ARGV(0, float);
 218         teament_name = M_ARGV(1, string);
 219
 220         if(!mutator_returnvalue)
 221         {
 222                 if(dm & BIT(0)) c1 = 0;
 223                 if(dm & BIT(1)) c2 = 0;
 224                 if(dm & BIT(2)) c3 = 0;
 225                 if(dm & BIT(3)) c4 = 0;
 226         }
 227
 228         // find out what teams are allowed if necessary
 229         if(teament_name)
 230         {
 231                 entity head = find(NULL, classname, teament_name);
 232                 while(head)
 233                 {
 234                         switch(head.team)
 235                         {
 236                                 case NUM_TEAM_1: c1 = 0; break;
 237                                 case NUM_TEAM_2: c2 = 0; break;
 238                                 case NUM_TEAM_3: c3 = 0; break;
 239                                 case NUM_TEAM_4: c4 = 0; break;
 240                         }
 241
 242                         head = find(head, classname, teament_name);
 243                 }
 244         }
 245
 246         // TODO: Balance quantity of bots across > 2 teams when bot_vs_human is set (and remove next line)
 247         if(AvailableTeams() == 2)
 248         if(autocvar_bot_vs_human && for_whom)
 249         {
 250                 if(autocvar_bot_vs_human > 0)
 251                 {
 252                         // find last team available
 253
 254                         if(IS_BOT_CLIENT(for_whom))
 255                         {
 256                                 if(c4 >= 0) { c3 = c2 = c1 = -1; }
 257                                 else if(c3 >= 0) { c4 = c2 = c1 = -1; }
 258                                 else { c4 = c3 = c1 = -1; }
 259                                 // no further cases, we know at least 2 teams exist
 260                         }
 261                         else
 262                         {
 263                                 if(c1 >= 0) { c2 = c3 = c4 = -1; }
 264                                 else if(c2 >= 0) { c1 = c3 = c4 = -1; }
 265                                 else { c1 = c2 = c4 = -1; }
 266                                 // no further cases, bots have one of the teams
 267                         }
 268                 }
 269                 else
 270                 {
 271                         // find first team available
 272
 273                         if(IS_BOT_CLIENT(for_whom))
 274                         {
 275                                 if(c1 >= 0) { c2 = c3 = c4 = -1; }
 276                                 else if(c2 >= 0) { c1 = c3 = c4 = -1; }
 277                                 else { c1 = c2 = c4 = -1; }
 278                                 // no further cases, we know at least 2 teams exist
 279                         }
 280                         else
 281                         {
 282                                 if(c4 >= 0) { c3 = c2 = c1 = -1; }
 283                                 else if(c3 >= 0) { c4 = c2 = c1 = -1; }
 284                                 else { c4 = c3 = c1 = -1; }
 285                                 // no further cases, bots have one of the teams
 286                         }
 287                 }
 288         }
 289
 290         if(!for_whom)
 291                 return;
 292
 293         // if player has a forced team, ONLY allow that one
 294         if(for_whom.team_forced == NUM_TEAM_1 && c1 >= 0)
 295                 c2 = c3 = c4 = -1;
 296         else if(for_whom.team_forced == NUM_TEAM_2 && c2 >= 0)
 297                 c1 = c3 = c4 = -1;
 298         else if(for_whom.team_forced == NUM_TEAM_3 && c3 >= 0)
 299                 c1 = c2 = c4 = -1;
 300         else if(for_whom.team_forced == NUM_TEAM_4 && c4 >= 0)
 301                 c1 = c2 = c3 = -1;
 302 }
 303
 304 float PlayerValue(entity p)
 305 {
 306         return 1;
 307         // FIXME: it always returns 1...
 308 }
 309
 310 // c1...c4 should be set to -1 (not allowed) or 0 (allowed).
 311 // teams that are allowed will now have their player counts stored in c1...c4
 312 void GetTeamCounts(entity ignore)
 313 {
 314         float value, bvalue;
 315         // now count how many players are on each team already
 316
 317         // FIXME: also find and memorize the lowest-scoring bot on each team (in case players must be shuffled around)
 318         // also remember the lowest-scoring player
 319
 320         FOREACH_CLIENT(true, LAMBDA(
 321                 float t;
 322                 if(IS_PLAYER(it) || it.caplayer)
 323                         t = it.team;
 324                 else if(it.team_forced > 0)
 325                         t = it.team_forced; // reserve the spot
 326                 else
 327                         continue;
 328                 if(it != ignore)// && it.netname != "")
 329                 {
 330                         value = PlayerValue(it);
 331                         if(IS_BOT_CLIENT(it))
 332                                 bvalue = value;
 333                         else
 334                                 bvalue = 0;
 335                         if(t == NUM_TEAM_1)
 336                         {
 337                                 if(c1 >= 0)
 338                                 {
 339                                         c1 = c1 + value;
 340                                         cb1 = cb1 + bvalue;
 341                                 }
 342                         }
 343                         if(t == NUM_TEAM_2)
 344                         {
 345                                 if(c2 >= 0)
 346                                 {
 347                                         c2 = c2 + value;
 348                                         cb2 = cb2 + bvalue;
 349                                 }
 350                         }
 351                         if(t == NUM_TEAM_3)
 352                         {
 353                                 if(c3 >= 0)
 354                                 {
 355                                         c3 = c3 + value;
 356                                         cb3 = cb3 + bvalue;
 357                                 }
 358                         }
 359                         if(t == NUM_TEAM_4)
 360                         {
 361                                 if(c4 >= 0)
 362                                 {
 363                                         c4 = c4 + value;
 364                                         cb4 = cb4 + bvalue;
 365                                 }
 366                         }
 367                 }
 368         ));
 369
 370         // if the player who has a forced team has not joined yet, reserve the spot
 371         if(autocvar_g_campaign)
 372         {
 373                 switch(autocvar_g_campaign_forceteam)
 374                 {
 375                         case 1: if(c1 == cb1) ++c1; break;
 376                         case 2: if(c2 == cb2) ++c2; break;
 377                         case 3: if(c3 == cb3) ++c3; break;
 378                         case 4: if(c4 == cb4) ++c4; break;
 379                 }
 380         }
 381 }
 382
 383 float TeamSmallerEqThanTeam(float ta, float tb, entity e)
 384 {
 385         // we assume that CheckAllowedTeams and GetTeamCounts have already been called
 386         float f;
 387         float ca = -1, cb = -1, cba = 0, cbb = 0, sa = 0, sb = 0;
 388
 389         switch(ta)
 390         {
 391                 case 1: ca = c1; cba = cb1; sa = team1_score; break;
 392                 case 2: ca = c2; cba = cb2; sa = team2_score; break;
 393                 case 3: ca = c3; cba = cb3; sa = team3_score; break;
 394                 case 4: ca = c4; cba = cb4; sa = team4_score; break;
 395         }
 396         switch(tb)
 397         {
 398                 case 1: cb = c1; cbb = cb1; sb = team1_score; break;
 399                 case 2: cb = c2; cbb = cb2; sb = team2_score; break;
 400                 case 3: cb = c3; cbb = cb3; sb = team3_score; break;
 401                 case 4: cb = c4; cbb = cb4; sb = team4_score; break;
 402         }
 403
 404         // invalid
 405         if(ca < 0 || cb < 0)
 406                 return false;
 407
 408         // equal
 409         if(ta == tb)
 410                 return true;
 411
 412         if(IS_REAL_CLIENT(e))
 413         {
 414                 if(bots_would_leave)
 415                 {
 416                         ca -= cba * 0.999;
 417                         cb -= cbb * 0.999;
 418                 }
 419         }
 420
 421         // keep teams alive (teams of size 0 always count as smaller, ignoring score)
 422         if(ca < 1)
 423                 if(cb >= 1)
 424                         return true;
 425         if(ca >= 1)
 426                 if(cb < 1)
 427                         return false;
 428
 429         // first, normalize
 430         f = max(ca, cb, 1);
 431         ca /= f;
 432         cb /= f;
 433         f = max(sa, sb, 1);
 434         sa /= f;
 435         sb /= f;
 436
 437         // the more we're at the end of the match, the more take scores into account
 438         f = bound(0, game_completion_ratio * autocvar_g_balance_teams_scorefactor, 1);
 439         ca += (sa - ca) * f;
 440         cb += (sb - cb) * f;
 441
 442         return ca <= cb;
 443 }
 444
 445 // returns # of smallest team (1, 2, 3, 4)
 446 // NOTE: Assumes CheckAllowedTeams has already been called!
 447 float FindSmallestTeam(entity pl, float ignore_pl)
 448 {
 449         int totalteams = 0;
 450         int t = 1; // initialize with a random team?
 451         if(c4 >= 0) t = 4;
 452         if(c3 >= 0) t = 3;
 453         if(c2 >= 0) t = 2;
 454         if(c1 >= 0) t = 1;
 455
 456         // find out what teams are available
 457         //CheckAllowedTeams();
 458
 459         // make sure there are at least 2 teams to join
 460         if(c1 >= 0)
 461                 totalteams = totalteams + 1;
 462         if(c2 >= 0)
 463                 totalteams = totalteams + 1;
 464         if(c3 >= 0)
 465                 totalteams = totalteams + 1;
 466         if(c4 >= 0)
 467                 totalteams = totalteams + 1;
 468
 469         if((autocvar_bot_vs_human || pl.team_forced > 0) && totalteams == 1)
 470                 totalteams += 1;
 471
 472         if(totalteams <= 1)
 473         {
 474                 if(autocvar_g_campaign && pl && IS_REAL_CLIENT(pl))
 475                         return 1; // special case for campaign and player joining
 476                 else if(totalteams == 1) // single team
 477                         LOG_TRACEF("Only 1 team available for %s, you may need to fix your map", MapInfo_Type_ToString(MapInfo_CurrentGametype()));
 478                 else // no teams, major no no
 479                         error(sprintf("No teams available for %s\n", MapInfo_Type_ToString(MapInfo_CurrentGametype())));
 480         }
 481
 482         // count how many players are in each team
 483         if(ignore_pl)
 484                 GetTeamCounts(pl);
 485         else
 486                 GetTeamCounts(NULL);
 487
 488         RandomSelection_Init();
 489
 490         if(TeamSmallerEqThanTeam(1, t, pl))
 491                 t = 1;
 492         if(TeamSmallerEqThanTeam(2, t, pl))
 493                 t = 2;
 494         if(TeamSmallerEqThanTeam(3, t, pl))
 495                 t = 3;
 496         if(TeamSmallerEqThanTeam(4, t, pl))
 497                 t = 4;
 498
 499         // now t is the minimum, or A minimum!
 500         if(t == 1 || TeamSmallerEqThanTeam(1, t, pl))
 501                 RandomSelection_Add(NULL, 1, string_null, 1, 1);
 502         if(t == 2 || TeamSmallerEqThanTeam(2, t, pl))
 503                 RandomSelection_Add(NULL, 2, string_null, 1, 1);
 504         if(t == 3 || TeamSmallerEqThanTeam(3, t, pl))
 505                 RandomSelection_Add(NULL, 3, string_null, 1, 1);
 506         if(t == 4 || TeamSmallerEqThanTeam(4, t, pl))
 507                 RandomSelection_Add(NULL, 4, string_null, 1, 1);
 508
 509         return RandomSelection_chosen_float;
 510 }
 511
 512 int JoinBestTeam(entity this, bool only_return_best, bool forcebestteam)
 513 {
 514         float smallest, selectedteam;
 515
 516         // don't join a team if we're not playing a team game
 517         if(!teamplay)
 518                 return 0;
 519
 520         // find out what teams are available
 521         CheckAllowedTeams(this);
 522
 523         // if we don't care what team he ends up on, put him on whatever team he entered as.
 524         // if he's not on a valid team, then let other code put him on the smallest team
 525         if(!forcebestteam)
 526         {
 527                 if(     c1 >= 0 && this.team == NUM_TEAM_1)
 528                         selectedteam = this.team;
 529                 else if(c2 >= 0 && this.team == NUM_TEAM_2)
 530                         selectedteam = this.team;
 531                 else if(c3 >= 0 && this.team == NUM_TEAM_3)
 532                         selectedteam = this.team;
 533                 else if(c4 >= 0 && this.team == NUM_TEAM_4)
 534                         selectedteam = this.team;
 535                 else
 536                         selectedteam = -1;
 537
 538                 if(selectedteam > 0)
 539                 {
 540                         if(!only_return_best)
 541                         {
 542                                 SetPlayerColors(this, selectedteam - 1);
 543
 544                                 // when JoinBestTeam is called by client.qc/ClientKill_Now_TeamChange the players team is -1 and thus skipped
 545                                 // when JoinBestTeam is called by client.qc/ClientConnect the player_id is 0 the log attempt is rejected
 546                                 LogTeamchange(this.playerid, this.team, 99);
 547                         }
 548                         return selectedteam;
 549                 }
 550                 // otherwise end up on the smallest team (handled below)
 551         }
 552
 553         smallest = FindSmallestTeam(this, true);
 554
 555         if(!only_return_best && !this.bot_forced_team)
 556         {
 557                 TeamchangeFrags(this);
 558                 if(smallest == 1)
 559                 {
 560                         SetPlayerColors(this, NUM_TEAM_1 - 1);
 561                 }
 562                 else if(smallest == 2)
 563                 {
 564                         SetPlayerColors(this, NUM_TEAM_2 - 1);
 565                 }
 566                 else if(smallest == 3)
 567                 {
 568                         SetPlayerColors(this, NUM_TEAM_3 - 1);
 569                 }
 570                 else if(smallest == 4)
 571                 {
 572                         SetPlayerColors(this, NUM_TEAM_4 - 1);
 573                 }
 574                 else
 575                 {
 576                         error("smallest team: invalid team\n");
 577                 }
 578
 579                 LogTeamchange(this.playerid, this.team, 2); // log auto join
 580
 581                 if(!IS_DEAD(this))
 582                         Damage(this, this, this, 100000, DEATH_TEAMCHANGE.m_id, this.origin, '0 0 0');
 583         }
 584
 585         return smallest;
 586 }
 587
 588 //void() ctf_playerchanged;
 589 void SV_ChangeTeam(entity this, float _color)
 590 {
 591         float scolor, dcolor, steam, dteam; //, dbotcount, scount, dcount;
 592
 593         // in normal deathmatch we can just apply the color and we're done
 594         if(!teamplay)
 595                 SetPlayerColors(this, _color);
 596
 597         if(!IS_CLIENT(this))
 598         {
 599                 // since this is an engine function, and gamecode doesn't have any calls earlier than this, do the connecting message here
 600                 Send_Notification(NOTIF_ALL, NULL, MSG_INFO, INFO_CONNECTING, this.netname);
 601                 return;
 602         }
 603
 604         if(!teamplay)
 605                 return;
 606
 607         scolor = this.clientcolors & 0x0F;
 608         dcolor = _color & 0x0F;
 609
 610         if(scolor == NUM_TEAM_1 - 1)
 611                 steam = 1;
 612         else if(scolor == NUM_TEAM_2 - 1)
 613                 steam = 2;
 614         else if(scolor == NUM_TEAM_3 - 1)
 615                 steam = 3;
 616         else // if(scolor == NUM_TEAM_4 - 1)
 617                 steam = 4;
 618         if(dcolor == NUM_TEAM_1 - 1)
 619                 dteam = 1;
 620         else if(dcolor == NUM_TEAM_2 - 1)
 621                 dteam = 2;
 622         else if(dcolor == NUM_TEAM_3 - 1)
 623                 dteam = 3;
 624         else // if(dcolor == NUM_TEAM_4 - 1)
 625                 dteam = 4;
 626
 627         CheckAllowedTeams(this);
 628
 629         if(dteam == 1 && c1 < 0) dteam = 4;
 630         if(dteam == 4 && c4 < 0) dteam = 3;
 631         if(dteam == 3 && c3 < 0) dteam = 2;
 632         if(dteam == 2 && c2 < 0) dteam = 1;
 633
 634         // not changing teams
 635         if(scolor == dcolor)
 636         {
 637                 //bprint("same team change\n");
 638                 SetPlayerTeam(this, dteam, steam, true);
 639                 return;
 640         }
 641
 642         if((autocvar_g_campaign) || (autocvar_g_changeteam_banned && this.wasplayer)) {
 643                 Send_Notification(NOTIF_ONE, this, MSG_INFO, INFO_TEAMCHANGE_NOTALLOWED);
 644                 return; // changing teams is not allowed
 645         }
 646
 647         // autocvar_g_balance_teams_prevent_imbalance only makes sense if autocvar_g_balance_teams is on, as it makes the team selection dialog pointless
 648         if(autocvar_g_balance_teams && autocvar_g_balance_teams_prevent_imbalance)
 649         {
 650                 GetTeamCounts(this);
 651                 if(!TeamSmallerEqThanTeam(dteam, steam, this))
 652                 {
 653                         Send_Notification(NOTIF_ONE, this, MSG_INFO, INFO_TEAMCHANGE_LARGERTEAM);
 654                         return;
 655                 }
 656         }
 657
 658 //      bprint("allow change teams from ", ftos(steam), " to ", ftos(dteam), "\n");
 659
 660         if(IS_PLAYER(this) && steam != dteam)
 661         {
 662                 // reduce frags during a team change
 663                 TeamchangeFrags(this);
 664         }
 665
 666         MUTATOR_CALLHOOK(Player_ChangeTeam, this, steam, dteam);
 667
 668         SetPlayerTeam(this, dteam, steam, !IS_CLIENT(this));
 669
 670         if(IS_PLAYER(this) && steam != dteam)
 671         {
 672                 // kill player when changing teams
 673                 if(!IS_DEAD(this))
 674                         Damage(this, this, this, 100000, DEATH_TEAMCHANGE.m_id, this.origin, '0 0 0');
 675         }
 676 }
 677
 678 void ShufflePlayerOutOfTeam (float source_team)
 679 {
 680         float smallestteam, smallestteam_count, steam;
 681         float lowest_bot_score, lowest_player_score;
 682         entity lowest_bot, lowest_player, selected;
 683
 684         smallestteam = 0;
 685         smallestteam_count = 999999999;
 686
 687         if(c1 >= 0 && c1 < smallestteam_count)
 688         {
 689                 smallestteam = 1;
 690                 smallestteam_count = c1;
 691         }
 692         if(c2 >= 0 && c2 < smallestteam_count)
 693         {
 694                 smallestteam = 2;
 695                 smallestteam_count = c2;
 696         }
 697         if(c3 >= 0 && c3 < smallestteam_count)
 698         {
 699                 smallestteam = 3;
 700                 smallestteam_count = c3;
 701         }
 702         if(c4 >= 0 && c4 < smallestteam_count)
 703         {
 704                 smallestteam = 4;
 705                 smallestteam_count = c4;
 706         }
 707
 708         if(!smallestteam)
 709         {
 710                 bprint("warning: no smallest team\n");
 711                 return;
 712         }
 713
 714         if(source_team == 1)
 715                 steam = NUM_TEAM_1;
 716         else if(source_team == 2)
 717                 steam = NUM_TEAM_2;
 718         else if(source_team == 3)
 719                 steam = NUM_TEAM_3;
 720         else // if(source_team == 4)
 721                 steam = NUM_TEAM_4;
 722
 723         lowest_bot = NULL;
 724         lowest_bot_score = 999999999;
 725         lowest_player = NULL;
 726         lowest_player_score = 999999999;
 727
 728         // find the lowest-scoring player & bot of that team
 729         FOREACH_CLIENT(IS_PLAYER(it) && it.team == steam, LAMBDA(
 730                 if(it.isbot)
 731                 {
 732                         if(it.totalfrags < lowest_bot_score)
 733                         {
 734                                 lowest_bot = it;
 735                                 lowest_bot_score = it.totalfrags;
 736                         }
 737                 }
 738                 else
 739                 {
 740                         if(it.totalfrags < lowest_player_score)
 741                         {
 742                                 lowest_player = it;
 743                                 lowest_player_score = it.totalfrags;
 744                         }
 745                 }
 746         ));
 747
 748         // prefers to move a bot...
 749         if(lowest_bot != NULL)
 750                 selected = lowest_bot;
 751         // but it will move a player if it has to
 752         else
 753                 selected = lowest_player;
 754         // don't do anything if it couldn't find anyone
 755         if(!selected)
 756         {
 757                 bprint("warning: couldn't find a player to move from team\n");
 758                 return;
 759         }
 760
 761         // smallest team gains a member
 762         if(smallestteam == 1)
 763         {
 764                 c1 = c1 + 1;
 765         }
 766         else if(smallestteam == 2)
 767         {
 768                 c2 = c2 + 1;
 769         }
 770         else if(smallestteam == 3)
 771         {
 772                 c3 = c3 + 1;
 773         }
 774         else if(smallestteam == 4)
 775         {
 776                 c4 = c4 + 1;
 777         }
 778         else
 779         {
 780                 bprint("warning: destination team invalid\n");
 781                 return;
 782         }
 783         // source team loses a member
 784         if(source_team == 1)
 785         {
 786                 c1 = c1 + 1;
 787         }
 788         else if(source_team == 2)
 789         {
 790                 c2 = c2 + 2;
 791         }
 792         else if(source_team == 3)
 793         {
 794                 c3 = c3 + 3;
 795         }
 796         else if(source_team == 4)
 797         {
 798                 c4 = c4 + 4;
 799         }
 800         else
 801         {
 802                 bprint("warning: source team invalid\n");
 803                 return;
 804         }
 805
 806         // move the player to the new team
 807         TeamchangeFrags(selected);
 808         SetPlayerTeam(selected, smallestteam, source_team, false);
 809
 810         if(!IS_DEAD(selected))
 811                 Damage(selected, selected, selected, 100000, DEATH_AUTOTEAMCHANGE.m_id, selected.origin, '0 0 0');
 812         Send_Notification(NOTIF_ONE, selected, MSG_CENTER, CENTER_DEATH_SELF_AUTOTEAMCHANGE, selected.team);
 813 }