cmd.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // cmd.c -- Quake script command processing module
  21
  22 #include "quakedef.h"
  23 #include "thread.h"
  24
  25 cmd_state_t cmd_client;
  26 cmd_state_t cmd_clientfromserver;
  27 cmd_state_t cmd_server;
  28 cmd_state_t cmd_serverfromclient;
  29
  30 cmd_userdefined_t cmd_userdefined_all;
  31 cmd_userdefined_t cmd_userdefined_null;
  32
  33 typedef struct cmd_iter_s {
  34         cmd_state_t *cmd;
  35 }
  36 cmd_iter_t;
  37
  38 static cmd_iter_t cmd_iter_all[] = {
  39         {&cmd_client},
  40         {&cmd_clientfromserver},
  41         {&cmd_server},
  42         {&cmd_serverfromclient},
  43         {NULL},
  44 };
  45
  46
  47 // we only run the +whatever commandline arguments once
  48 qboolean host_stuffcmdsrun = false;
  49
  50 //=============================================================================
  51
  52 void Cbuf_Lock(cmd_state_t *cmd)
  53 {
  54         Thread_AtomicLock(&cmd->text_lock);
  55 }
  56
  57 void Cbuf_Unlock(cmd_state_t *cmd)
  58 {
  59         Thread_AtomicUnlock(&cmd->text_lock);
  60 }
  61
  62
  63 /*
  64 ============
  65 Cmd_Wait_f
  66
  67 Causes execution of the remainder of the command buffer to be delayed until
  68 next frame.  This allows commands like:
  69 bind g "impulse 5 ; +attack ; wait ; -attack ; impulse 2"
  70 ============
  71 */
  72 static void Cmd_Wait_f (cmd_state_t *cmd)
  73 {
  74         cmd->wait = true;
  75 }
  76
  77 /*
  78 ============
  79 Cmd_Defer_f
  80
  81 Cause a command to be executed after a delay.
  82 ============
  83 */
  84 static void Cmd_Defer_f (cmd_state_t *cmd)
  85 {
  86         if(Cmd_Argc(cmd) == 1)
  87         {
  88                 cmddeferred_t *next = cmd->deferred_list;
  89                 if(!next)
  90                         Con_Printf("No commands are pending.\n");
  91                 while(next)
  92                 {
  93                         Con_Printf("-> In %9.2f: %s\n", next->delay, next->value);
  94                         next = next->next;
  95                 }
  96         } else if(Cmd_Argc(cmd) == 2 && !strcasecmp("clear", Cmd_Argv(cmd, 1)))
  97         {
  98                 while(cmd->deferred_list)
  99                 {
 100                         cmddeferred_t *defcmd = cmd->deferred_list;
 101                         cmd->deferred_list = defcmd->next;
 102                         Mem_Free(defcmd->value);
 103                         Mem_Free(defcmd);
 104                 }
 105         } else if(Cmd_Argc(cmd) == 3)
 106         {
 107                 const char *value = Cmd_Argv(cmd, 2);
 108                 cmddeferred_t *defcmd = (cmddeferred_t*)Mem_Alloc(tempmempool, sizeof(*defcmd));
 109                 size_t len = strlen(value);
 110
 111                 defcmd->delay = atof(Cmd_Argv(cmd, 1));
 112                 defcmd->value = (char*)Mem_Alloc(tempmempool, len+1);
 113                 memcpy(defcmd->value, value, len+1);
 114                 defcmd->next = NULL;
 115
 116                 if(cmd->deferred_list)
 117                 {
 118                         cmddeferred_t *next = cmd->deferred_list;
 119                         while(next->next)
 120                                 next = next->next;
 121                         next->next = defcmd;
 122                 } else
 123                         cmd->deferred_list = defcmd;
 124                 /* Stupid me... this changes the order... so commands with the same delay go blub :S
 125                   defcmd->next = cmd_deferred_list;
 126                   cmd_deferred_list = defcmd;*/
 127         } else {
 128                 Con_Printf("usage: defer <seconds> <command>\n"
 129                            "       defer clear\n");
 130                 return;
 131         }
 132 }
 133
 134 /*
 135 ============
 136 Cmd_Centerprint_f
 137
 138 Print something to the center of the screen using SCR_Centerprint
 139 ============
 140 */
 141 static void Cmd_Centerprint_f (cmd_state_t *cmd)
 142 {
 143         char msg[MAX_INPUTLINE];
 144         unsigned int i, c, p;
 145         c = Cmd_Argc(cmd);
 146         if(c >= 2)
 147         {
 148                 strlcpy(msg, Cmd_Argv(cmd,1), sizeof(msg));
 149                 for(i = 2; i < c; ++i)
 150                 {
 151                         strlcat(msg, " ", sizeof(msg));
 152                         strlcat(msg, Cmd_Argv(cmd, i), sizeof(msg));
 153                 }
 154                 c = (unsigned int)strlen(msg);
 155                 for(p = 0, i = 0; i < c; ++i)
 156                 {
 157                         if(msg[i] == '\\')
 158                         {
 159                                 if(msg[i+1] == 'n')
 160                                         msg[p++] = '\n';
 161                                 else if(msg[i+1] == '\\')
 162                                         msg[p++] = '\\';
 163                                 else {
 164                                         msg[p++] = '\\';
 165                                         msg[p++] = msg[i+1];
 166                                 }
 167                                 ++i;
 168                         } else {
 169                                 msg[p++] = msg[i];
 170                         }
 171                 }
 172                 msg[p] = '\0';
 173                 SCR_CenterPrint(msg);
 174         }
 175 }
 176
 177 /*
 178 =============================================================================
 179
 180                                                 COMMAND BUFFER
 181
 182 =============================================================================
 183 */
 184
 185 /*
 186 ============
 187 Cbuf_AddText
 188
 189 Adds command text at the end of the buffer
 190 ============
 191 */
 192 void Cbuf_AddText (cmd_state_t *cmd, const char *text)
 193 {
 194         int             l;
 195
 196         l = (int)strlen(text);
 197
 198         Cbuf_Lock(cmd);
 199         if (cmd->text.maxsize - cmd->text.cursize <= l)
 200                 Con_Print("Cbuf_AddText: overflow\n");
 201         else
 202                 SZ_Write(&cmd->text, (const unsigned char *)text, l);
 203         Cbuf_Unlock(cmd);
 204 }
 205
 206
 207 /*
 208 ============
 209 Cbuf_InsertText
 210
 211 Adds command text immediately after the current command
 212 Adds a \n to the text
 213 FIXME: actually change the command buffer to do less copying
 214 ============
 215 */
 216 void Cbuf_InsertText (cmd_state_t *cmd, const char *text)
 217 {
 218         size_t l = strlen(text);
 219         Cbuf_Lock(cmd);
 220         // we need to memmove the existing text and stuff this in before it...
 221         if (cmd->text.cursize + l >= (size_t)cmd->text.maxsize)
 222                 Con_Print("Cbuf_InsertText: overflow\n");
 223         else
 224         {
 225                 // we don't have a SZ_Prepend, so...
 226                 memmove(cmd->text.data + l, cmd->text.data, cmd->text.cursize);
 227                 cmd->text.cursize += (int)l;
 228                 memcpy(cmd->text.data, text, l);
 229         }
 230         Cbuf_Unlock(cmd);
 231 }
 232
 233 /*
 234 ============
 235 Cbuf_Execute_Deferred --blub
 236 ============
 237 */
 238 static void Cbuf_Execute_Deferred (cmd_state_t *cmd)
 239 {
 240         cmddeferred_t *defcmd, *prev;
 241         double eat;
 242         if (realtime - cmd->deferred_oldrealtime < 0 || realtime - cmd->deferred_oldrealtime > 1800) cmd->deferred_oldrealtime = realtime;
 243         eat = realtime - cmd->deferred_oldrealtime;
 244         if (eat < (1.0 / 120.0))
 245                 return;
 246         cmd->deferred_oldrealtime = realtime;
 247         prev = NULL;
 248         defcmd = cmd->deferred_list;
 249         while(defcmd)
 250         {
 251                 defcmd->delay -= eat;
 252                 if(defcmd->delay <= 0)
 253                 {
 254                         Cbuf_AddText(cmd, defcmd->value);
 255                         Cbuf_AddText(cmd, ";\n");
 256                         Mem_Free(defcmd->value);
 257
 258                         if(prev) {
 259                                 prev->next = defcmd->next;
 260                                 Mem_Free(defcmd);
 261                                 defcmd = prev->next;
 262                         } else {
 263                                 cmd->deferred_list = defcmd->next;
 264                                 Mem_Free(defcmd);
 265                                 defcmd = cmd->deferred_list;
 266                         }
 267                         continue;
 268                 }
 269                 prev = defcmd;
 270                 defcmd = defcmd->next;
 271         }
 272 }
 273
 274 /*
 275 ============
 276 Cbuf_Execute
 277 ============
 278 */
 279 static qboolean Cmd_PreprocessString(cmd_state_t *cmd, const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias );
 280 void Cbuf_Execute (cmd_state_t *cmd)
 281 {
 282         int i;
 283         char *text;
 284         char line[MAX_INPUTLINE];
 285         char preprocessed[MAX_INPUTLINE];
 286         char *firstchar;
 287         qboolean quotes;
 288         char *comment;
 289
 290         // LadyHavoc: making sure the tokenizebuffer doesn't get filled up by repeated crashes
 291         cmd->tokenizebufferpos = 0;
 292
 293         while (cmd->text.cursize)
 294         {
 295 // find a \n or ; line break
 296                 text = (char *)cmd->text.data;
 297
 298                 quotes = false;
 299                 comment = NULL;
 300                 for (i=0 ; i < cmd->text.cursize ; i++)
 301                 {
 302                         if(!comment)
 303                         {
 304                                 if (text[i] == '"')
 305                                         quotes = !quotes;
 306
 307                                 if(quotes)
 308                                 {
 309                                         // make sure i doesn't get > cursize which causes a negative
 310                                         // size in memmove, which is fatal --blub
 311                                         if (i < (cmd->text.cursize-1) && (text[i] == '\\' && (text[i+1] == '"' || text[i+1] == '\\')))
 312                                                 i++;
 313                                 }
 314                                 else
 315                                 {
 316                                         if(text[i] == '/' && text[i + 1] == '/' && (i == 0 || ISWHITESPACE(text[i-1])))
 317                                                 comment = &text[i];
 318                                         if(text[i] == ';')
 319                                                 break;  // don't break if inside a quoted string or comment
 320                                 }
 321                         }
 322
 323                         if (text[i] == '\r' || text[i] == '\n')
 324                                 break;
 325                 }
 326
 327                 // better than CRASHING on overlong input lines that may SOMEHOW enter the buffer
 328                 if(i >= MAX_INPUTLINE)
 329                 {
 330                         Con_Warnf("Warning: console input buffer had an overlong line. Ignored.\n");
 331                         line[0] = 0;
 332                 }
 333                 else
 334                 {
 335                         memcpy (line, text, comment ? (comment - text) : i);
 336                         line[comment ? (comment - text) : i] = 0;
 337                 }
 338
 339 // delete the text from the command buffer and move remaining commands down
 340 // this is necessary because commands (exec, alias) can insert data at the
 341 // beginning of the text buffer
 342
 343                 if (i == cmd->text.cursize)
 344                         cmd->text.cursize = 0;
 345                 else
 346                 {
 347                         i++;
 348                         cmd->text.cursize -= i;
 349                         memmove (cmd->text.data, text+i, cmd->text.cursize);
 350                 }
 351
 352 // execute the command line
 353                 firstchar = line;
 354                 while(*firstchar && ISWHITESPACE(*firstchar))
 355                         ++firstchar;
 356                 if(
 357                         (strncmp(firstchar, "alias", 5) || !ISWHITESPACE(firstchar[5]))
 358                         &&
 359                         (strncmp(firstchar, "bind", 4) || !ISWHITESPACE(firstchar[4]))
 360                         &&
 361                         (strncmp(firstchar, "in_bind", 7) || !ISWHITESPACE(firstchar[7]))
 362                 )
 363                 {
 364                         if(Cmd_PreprocessString( cmd, line, preprocessed, sizeof(preprocessed), NULL ))
 365                                 Cmd_ExecuteString (cmd, preprocessed, src_command, false);
 366                 }
 367                 else
 368                 {
 369                         Cmd_ExecuteString (cmd, line, src_command, false);
 370                 }
 371
 372                 if (cmd->wait)
 373                 {       // skip out while text still remains in buffer, leaving it
 374                         // for next frame
 375                         cmd->wait = false;
 376                         break;
 377                 }
 378         }
 379 }
 380
 381 void Cbuf_Frame(cmd_state_t *cmd)
 382 {
 383         Cbuf_Execute_Deferred(cmd);
 384         if (cmd->text.cursize)
 385         {
 386                 SV_LockThreadMutex();
 387                 Cbuf_Execute(cmd);
 388                 SV_UnlockThreadMutex();
 389         }
 390 }
 391
 392 /*
 393 ==============================================================================
 394
 395                                                 SCRIPT COMMANDS
 396
 397 ==============================================================================
 398 */
 399
 400 extern qboolean host_init;
 401
 402 /*
 403 ===============
 404 Cmd_StuffCmds_f
 405
 406 Adds command line parameters as script statements
 407 Commands lead with a +, and continue until a - or another +
 408 quake +prog jctest.qp +cmd amlev1
 409 quake -nosound +cmd amlev1
 410 ===============
 411 */
 412 static void Cmd_StuffCmds_f (cmd_state_t *cmd)
 413 {
 414         int             i, j, l;
 415         // this is for all commandline options combined (and is bounds checked)
 416         char    build[MAX_INPUTLINE];
 417
 418         // come back later so we don't crash
 419         if(host_init)
 420                 return;
 421
 422         if (Cmd_Argc (cmd) != 1)
 423         {
 424                 Con_Print("stuffcmds : execute command line parameters\n");
 425                 return;
 426         }
 427
 428         // no reason to run the commandline arguments twice
 429         if (host_stuffcmdsrun)
 430                 return;
 431
 432         host_stuffcmdsrun = true;
 433         build[0] = 0;
 434         l = 0;
 435         for (i = 0;i < com_argc;i++)
 436         {
 437                 if (com_argv[i] && com_argv[i][0] == '+' && (com_argv[i][1] < '0' || com_argv[i][1] > '9') && l + strlen(com_argv[i]) - 1 <= sizeof(build) - 1)
 438                 {
 439                         j = 1;
 440                         while (com_argv[i][j])
 441                                 build[l++] = com_argv[i][j++];
 442                         i++;
 443                         for (;i < com_argc;i++)
 444                         {
 445                                 if (!com_argv[i])
 446                                         continue;
 447                                 if ((com_argv[i][0] == '+' || com_argv[i][0] == '-') && (com_argv[i][1] < '0' || com_argv[i][1] > '9'))
 448                                         break;
 449                                 if (l + strlen(com_argv[i]) + 4 > sizeof(build) - 1)
 450                                         break;
 451                                 build[l++] = ' ';
 452                                 if (strchr(com_argv[i], ' '))
 453                                         build[l++] = '\"';
 454                                 for (j = 0;com_argv[i][j];j++)
 455                                         build[l++] = com_argv[i][j];
 456                                 if (strchr(com_argv[i], ' '))
 457                                         build[l++] = '\"';
 458                         }
 459                         build[l++] = '\n';
 460                         i--;
 461                 }
 462         }
 463         // now terminate the combined string and prepend it to the command buffer
 464         // we already reserved space for the terminator
 465         build[l++] = 0;
 466         Cbuf_InsertText (cmd, build);
 467 }
 468
 469 static void Cmd_Exec(cmd_state_t *cmd, const char *filename)
 470 {
 471         char *f;
 472         size_t filenameLen = strlen(filename);
 473         qboolean isdefaultcfg =
 474                 !strcmp(filename, "default.cfg") ||
 475                 (filenameLen >= 12 && !strcmp(filename + filenameLen - 12, "/default.cfg"));
 476
 477         if (!strcmp(filename, "config.cfg"))
 478         {
 479                 filename = CONFIGFILENAME;
 480                 if (COM_CheckParm("-noconfig"))
 481                         return; // don't execute config.cfg
 482         }
 483
 484         f = (char *)FS_LoadFile (filename, tempmempool, false, NULL);
 485         if (!f)
 486         {
 487                 Con_Printf("couldn't exec %s\n",filename);
 488                 return;
 489         }
 490         Con_Printf("execing %s\n",filename);
 491
 492         // if executing default.cfg for the first time, lock the cvar defaults
 493         // it may seem backwards to insert this text BEFORE the default.cfg
 494         // but Cbuf_InsertText inserts before, so this actually ends up after it.
 495         if (isdefaultcfg)
 496                 Cbuf_InsertText(cmd, "\ncvar_lockdefaults\n");
 497
 498         // insert newline after the text to make sure the last line is terminated (some text editors omit the trailing newline)
 499         // (note: insertion order here is backwards from execution order, so this adds it after the text, by calling it before...)
 500         Cbuf_InsertText (cmd, "\n");
 501         Cbuf_InsertText (cmd, f);
 502         Mem_Free(f);
 503
 504         if (isdefaultcfg)
 505         {
 506                 // special defaults for specific games go here, these execute before default.cfg
 507                 // Nehahra pushable crates malfunction in some levels if this is on
 508                 // Nehahra NPC AI is confused by blowupfallenzombies
 509                 switch(gamemode)
 510                 {
 511                 case GAME_NORMAL:
 512                         Cbuf_InsertText(cmd, "\n"
 513 "sv_gameplayfix_blowupfallenzombies 0\n"
 514 "sv_gameplayfix_findradiusdistancetobox 0\n"
 515 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 516 "sv_gameplayfix_slidemoveprojectiles 0\n"
 517 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 518 "sv_gameplayfix_setmodelrealbox 0\n"
 519 "sv_gameplayfix_droptofloorstartsolid 0\n"
 520 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 521 "sv_gameplayfix_noairborncorpse 0\n"
 522 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 523 "sv_gameplayfix_easierwaterjump 0\n"
 524 "sv_gameplayfix_delayprojectiles 0\n"
 525 "sv_gameplayfix_multiplethinksperframe 0\n"
 526 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 527 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 528 "sv_gameplayfix_swiminbmodels 0\n"
 529 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 530 "sys_ticrate 0.01388889\n"
 531 "r_shadow_gloss 1\n"
 532 "r_shadow_bumpscale_basetexture 0\n"
 533 "csqc_polygons_defaultmaterial_nocullface 0\n"
 534                                 );
 535                         break;
 536                 case GAME_NEHAHRA:
 537                         Cbuf_InsertText(cmd, "\n"
 538 "sv_gameplayfix_blowupfallenzombies 0\n"
 539 "sv_gameplayfix_findradiusdistancetobox 0\n"
 540 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 541 "sv_gameplayfix_slidemoveprojectiles 0\n"
 542 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 543 "sv_gameplayfix_setmodelrealbox 0\n"
 544 "sv_gameplayfix_droptofloorstartsolid 0\n"
 545 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 546 "sv_gameplayfix_noairborncorpse 0\n"
 547 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 548 "sv_gameplayfix_easierwaterjump 0\n"
 549 "sv_gameplayfix_delayprojectiles 0\n"
 550 "sv_gameplayfix_multiplethinksperframe 0\n"
 551 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 552 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 553 "sv_gameplayfix_swiminbmodels 0\n"
 554 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 555 "sys_ticrate 0.01388889\n"
 556 "r_shadow_gloss 1\n"
 557 "r_shadow_bumpscale_basetexture 0\n"
 558 "csqc_polygons_defaultmaterial_nocullface 0\n"
 559                                 );
 560                         break;
 561                 // hipnotic mission pack has issues in their 'friendly monster' ai, which seem to attempt to attack themselves for some reason when findradius() returns non-solid entities.
 562                 // hipnotic mission pack has issues with bobbing water entities 'jittering' between different heights on alternate frames at the default 0.0138889 ticrate, 0.02 avoids this issue
 563                 // hipnotic mission pack has issues in their proximity mine sticking code, which causes them to bounce off.
 564                 case GAME_HIPNOTIC:
 565                 case GAME_QUOTH:
 566                         Cbuf_InsertText(cmd, "\n"
 567 "sv_gameplayfix_blowupfallenzombies 0\n"
 568 "sv_gameplayfix_findradiusdistancetobox 0\n"
 569 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 570 "sv_gameplayfix_slidemoveprojectiles 0\n"
 571 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 572 "sv_gameplayfix_setmodelrealbox 0\n"
 573 "sv_gameplayfix_droptofloorstartsolid 0\n"
 574 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 575 "sv_gameplayfix_noairborncorpse 0\n"
 576 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 577 "sv_gameplayfix_easierwaterjump 0\n"
 578 "sv_gameplayfix_delayprojectiles 0\n"
 579 "sv_gameplayfix_multiplethinksperframe 0\n"
 580 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 581 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 582 "sv_gameplayfix_swiminbmodels 0\n"
 583 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 584 "sys_ticrate 0.02\n"
 585 "r_shadow_gloss 1\n"
 586 "r_shadow_bumpscale_basetexture 0\n"
 587 "csqc_polygons_defaultmaterial_nocullface 0\n"
 588                                 );
 589                         break;
 590                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
 591                 case GAME_ROGUE:
 592                         Cbuf_InsertText(cmd, "\n"
 593 "sv_gameplayfix_blowupfallenzombies 0\n"
 594 "sv_gameplayfix_findradiusdistancetobox 0\n"
 595 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 596 "sv_gameplayfix_slidemoveprojectiles 0\n"
 597 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 598 "sv_gameplayfix_setmodelrealbox 0\n"
 599 "sv_gameplayfix_droptofloorstartsolid 0\n"
 600 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 601 "sv_gameplayfix_noairborncorpse 0\n"
 602 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 603 "sv_gameplayfix_easierwaterjump 0\n"
 604 "sv_gameplayfix_delayprojectiles 0\n"
 605 "sv_gameplayfix_multiplethinksperframe 0\n"
 606 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 607 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 608 "sv_gameplayfix_swiminbmodels 0\n"
 609 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 610 "sys_ticrate 0.01388889\n"
 611 "r_shadow_gloss 1\n"
 612 "r_shadow_bumpscale_basetexture 0\n"
 613 "csqc_polygons_defaultmaterial_nocullface 0\n"
 614                                 );
 615                         break;
 616                 case GAME_TENEBRAE:
 617                         Cbuf_InsertText(cmd, "\n"
 618 "sv_gameplayfix_blowupfallenzombies 0\n"
 619 "sv_gameplayfix_findradiusdistancetobox 0\n"
 620 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 621 "sv_gameplayfix_slidemoveprojectiles 0\n"
 622 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 623 "sv_gameplayfix_setmodelrealbox 0\n"
 624 "sv_gameplayfix_droptofloorstartsolid 0\n"
 625 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 626 "sv_gameplayfix_noairborncorpse 0\n"
 627 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 628 "sv_gameplayfix_easierwaterjump 0\n"
 629 "sv_gameplayfix_delayprojectiles 0\n"
 630 "sv_gameplayfix_multiplethinksperframe 0\n"
 631 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 632 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 633 "sv_gameplayfix_swiminbmodels 0\n"
 634 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 635 "sys_ticrate 0.01388889\n"
 636 "r_shadow_gloss 2\n"
 637 "r_shadow_bumpscale_basetexture 4\n"
 638 "csqc_polygons_defaultmaterial_nocullface 0\n"
 639                                 );
 640                         break;
 641                 case GAME_NEXUIZ:
 642                         Cbuf_InsertText(cmd, "\n"
 643 "sv_gameplayfix_blowupfallenzombies 1\n"
 644 "sv_gameplayfix_findradiusdistancetobox 1\n"
 645 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 646 "sv_gameplayfix_slidemoveprojectiles 1\n"
 647 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 648 "sv_gameplayfix_setmodelrealbox 1\n"
 649 "sv_gameplayfix_droptofloorstartsolid 1\n"
 650 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 651 "sv_gameplayfix_noairborncorpse 1\n"
 652 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 653 "sv_gameplayfix_easierwaterjump 1\n"
 654 "sv_gameplayfix_delayprojectiles 1\n"
 655 "sv_gameplayfix_multiplethinksperframe 1\n"
 656 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 657 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 658 "sv_gameplayfix_swiminbmodels 1\n"
 659 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 660 "sys_ticrate 0.01388889\n"
 661 "sv_gameplayfix_q2airaccelerate 1\n"
 662 "sv_gameplayfix_stepmultipletimes 1\n"
 663 "csqc_polygons_defaultmaterial_nocullface 1\n"
 664                                 );
 665                         break;
 666                 case GAME_XONOTIC:
 667                 case GAME_VORETOURNAMENT:
 668                         // compatibility for versions prior to 2020-05-25, this can be overridden in newer versions to get the default behavior and be consistent with FTEQW engine
 669                         Cbuf_InsertText(cmd, "\n"
 670 "csqc_polygons_defaultmaterial_nocullface 1\n"
 671                                 );
 672                         break;
 673                 // Steel Storm: Burning Retribution csqc misinterprets CSQC_InputEvent if type is a value other than 0 or 1
 674                 case GAME_STEELSTORM:
 675                         Cbuf_InsertText(cmd, "\n"
 676 "sv_gameplayfix_blowupfallenzombies 1\n"
 677 "sv_gameplayfix_findradiusdistancetobox 1\n"
 678 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 679 "sv_gameplayfix_slidemoveprojectiles 1\n"
 680 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 681 "sv_gameplayfix_setmodelrealbox 1\n"
 682 "sv_gameplayfix_droptofloorstartsolid 1\n"
 683 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 684 "sv_gameplayfix_noairborncorpse 1\n"
 685 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 686 "sv_gameplayfix_easierwaterjump 1\n"
 687 "sv_gameplayfix_delayprojectiles 1\n"
 688 "sv_gameplayfix_multiplethinksperframe 1\n"
 689 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 690 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 691 "sv_gameplayfix_swiminbmodels 1\n"
 692 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 693 "sys_ticrate 0.01388889\n"
 694 "cl_csqc_generatemousemoveevents 0\n"
 695 "csqc_polygons_defaultmaterial_nocullface 1\n"
 696                                 );
 697                         break;
 698                 default:
 699                         Cbuf_InsertText(cmd, "\n"
 700 "sv_gameplayfix_blowupfallenzombies 1\n"
 701 "sv_gameplayfix_findradiusdistancetobox 1\n"
 702 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 703 "sv_gameplayfix_slidemoveprojectiles 1\n"
 704 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 705 "sv_gameplayfix_setmodelrealbox 1\n"
 706 "sv_gameplayfix_droptofloorstartsolid 1\n"
 707 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 708 "sv_gameplayfix_noairborncorpse 1\n"
 709 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 710 "sv_gameplayfix_easierwaterjump 1\n"
 711 "sv_gameplayfix_delayprojectiles 1\n"
 712 "sv_gameplayfix_multiplethinksperframe 1\n"
 713 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 714 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 715 "sv_gameplayfix_swiminbmodels 1\n"
 716 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 717 "sys_ticrate 0.01388889\n"
 718 "csqc_polygons_defaultmaterial_nocullface 0\n"
 719                                 );
 720                         break;
 721                 }
 722         }
 723 }
 724
 725 /*
 726 ===============
 727 Cmd_Exec_f
 728 ===============
 729 */
 730 static void Cmd_Exec_f (cmd_state_t *cmd)
 731 {
 732         fssearch_t *s;
 733         int i;
 734
 735         if (Cmd_Argc(cmd) != 2)
 736         {
 737                 Con_Print("exec <filename> : execute a script file\n");
 738                 return;
 739         }
 740
 741         s = FS_Search(Cmd_Argv(cmd, 1), true, true);
 742         if(!s || !s->numfilenames)
 743         {
 744                 Con_Printf("couldn't exec %s\n",Cmd_Argv(cmd, 1));
 745                 return;
 746         }
 747
 748         for(i = 0; i < s->numfilenames; ++i)
 749                 Cmd_Exec(cmd, s->filenames[i]);
 750
 751         FS_FreeSearch(s);
 752 }
 753
 754
 755 /*
 756 ===============
 757 Cmd_Echo_f
 758
 759 Just prints the rest of the line to the console
 760 ===============
 761 */
 762 static void Cmd_Echo_f (cmd_state_t *cmd)
 763 {
 764         int             i;
 765
 766         for (i=1 ; i<Cmd_Argc(cmd) ; i++)
 767                 Con_Printf("%s ",Cmd_Argv(cmd, i));
 768         Con_Print("\n");
 769 }
 770
 771 // DRESK - 5/14/06
 772 // Support Doom3-style Toggle Console Command
 773 /*
 774 ===============
 775 Cmd_Toggle_f
 776
 777 Toggles a specified console variable amongst the values specified (default is 0 and 1)
 778 ===============
 779 */
 780 static void Cmd_Toggle_f(cmd_state_t *cmd)
 781 {
 782         // Acquire Number of Arguments
 783         int nNumArgs = Cmd_Argc(cmd);
 784
 785         if(nNumArgs == 1)
 786                 // No Arguments Specified; Print Usage
 787                 Con_Print("Toggle Console Variable - Usage\n  toggle <variable> - toggles between 0 and 1\n  toggle <variable> <value> - toggles between 0 and <value>\n  toggle <variable> [string 1] [string 2]...[string n] - cycles through all strings\n");
 788         else
 789         { // Correct Arguments Specified
 790                 // Acquire Potential CVar
 791                 cvar_t* cvCVar = Cvar_FindVar(cmd->cvars, Cmd_Argv(cmd, 1), cmd->cvars_flagsmask, false);
 792
 793                 if(cvCVar != NULL)
 794                 { // Valid CVar
 795                         if(nNumArgs == 2)
 796                         { // Default Usage
 797                                 if(cvCVar->integer)
 798                                         Cvar_SetValueQuick(cvCVar, 0);
 799                                 else
 800                                         Cvar_SetValueQuick(cvCVar, 1);
 801                         }
 802                         else
 803                         if(nNumArgs == 3)
 804                         { // 0 and Specified Usage
 805                                 if(cvCVar->integer == atoi(Cmd_Argv(cmd, 2) ) )
 806                                         // CVar is Specified Value; // Reset to 0
 807                                         Cvar_SetValueQuick(cvCVar, 0);
 808                                 else
 809                                 if(cvCVar->integer == 0)
 810                                         // CVar is 0; Specify Value
 811                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 812                                 else
 813                                         // CVar does not match; Reset to 0
 814                                         Cvar_SetValueQuick(cvCVar, 0);
 815                         }
 816                         else
 817                         { // Variable Values Specified
 818                                 int nCnt;
 819                                 int bFound = 0;
 820
 821                                 for(nCnt = 2; nCnt < nNumArgs; nCnt++)
 822                                 { // Cycle through Values
 823                                         if( strcmp(cvCVar->string, Cmd_Argv(cmd, nCnt) ) == 0)
 824                                         { // Current Value Located; Increment to Next
 825                                                 if( (nCnt + 1) == nNumArgs)
 826                                                         // Max Value Reached; Reset
 827                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 828                                                 else
 829                                                         // Next Value
 830                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, nCnt + 1) );
 831
 832                                                 // End Loop
 833                                                 nCnt = nNumArgs;
 834                                                 // Assign Found
 835                                                 bFound = 1;
 836                                         }
 837                                 }
 838                                 if(!bFound)
 839                                         // Value not Found; Reset to Original
 840                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 841                         }
 842
 843                 }
 844                 else
 845                 { // Invalid CVar
 846                         Con_Printf("ERROR : CVar '%s' not found\n", Cmd_Argv(cmd, 1) );
 847                 }
 848         }
 849 }
 850
 851 /*
 852 ===============
 853 Cmd_Alias_f
 854
 855 Creates a new command that executes a command string (possibly ; seperated)
 856 ===============
 857 */
 858 static void Cmd_Alias_f (cmd_state_t *cmd)
 859 {
 860         cmdalias_t      *a;
 861         char            line[MAX_INPUTLINE];
 862         int                     i, c;
 863         const char              *s;
 864         size_t          alloclen;
 865
 866         if (Cmd_Argc(cmd) == 1)
 867         {
 868                 Con_Print("Current alias commands:\n");
 869                 for (a = cmd->userdefined->alias ; a ; a=a->next)
 870                         Con_Printf("%s : %s", a->name, a->value);
 871                 return;
 872         }
 873
 874         s = Cmd_Argv(cmd, 1);
 875         if (strlen(s) >= MAX_ALIAS_NAME)
 876         {
 877                 Con_Print("Alias name is too long\n");
 878                 return;
 879         }
 880
 881         // if the alias already exists, reuse it
 882         for (a = cmd->userdefined->alias ; a ; a=a->next)
 883         {
 884                 if (!strcmp(s, a->name))
 885                 {
 886                         Z_Free (a->value);
 887                         break;
 888                 }
 889         }
 890
 891         if (!a)
 892         {
 893                 cmdalias_t *prev, *current;
 894
 895                 a = (cmdalias_t *)Z_Malloc (sizeof(cmdalias_t));
 896                 strlcpy (a->name, s, sizeof (a->name));
 897                 // insert it at the right alphanumeric position
 898                 for( prev = NULL, current = cmd->userdefined->alias ; current && strcmp( current->name, a->name ) < 0 ; prev = current, current = current->next )
 899                         ;
 900                 if( prev ) {
 901                         prev->next = a;
 902                 } else {
 903                         cmd->userdefined->alias = a;
 904                 }
 905                 a->next = current;
 906         }
 907
 908
 909 // copy the rest of the command line
 910         line[0] = 0;            // start out with a null string
 911         c = Cmd_Argc(cmd);
 912         for (i=2 ; i < c ; i++)
 913         {
 914                 if (i != 2)
 915                         strlcat (line, " ", sizeof (line));
 916                 strlcat (line, Cmd_Argv(cmd, i), sizeof (line));
 917         }
 918         strlcat (line, "\n", sizeof (line));
 919
 920         alloclen = strlen (line) + 1;
 921         if(alloclen >= 2)
 922                 line[alloclen - 2] = '\n'; // to make sure a newline is appended even if too long
 923         a->value = (char *)Z_Malloc (alloclen);
 924         memcpy (a->value, line, alloclen);
 925 }
 926
 927 /*
 928 ===============
 929 Cmd_UnAlias_f
 930
 931 Remove existing aliases.
 932 ===============
 933 */
 934 static void Cmd_UnAlias_f (cmd_state_t *cmd)
 935 {
 936         cmdalias_t      *a, *p;
 937         int i;
 938         const char *s;
 939
 940         if(Cmd_Argc(cmd) == 1)
 941         {
 942                 Con_Print("unalias: Usage: unalias alias1 [alias2 ...]\n");
 943                 return;
 944         }
 945
 946         for(i = 1; i < Cmd_Argc(cmd); ++i)
 947         {
 948                 s = Cmd_Argv(cmd, i);
 949                 p = NULL;
 950                 for(a = cmd->userdefined->alias; a; p = a, a = a->next)
 951                 {
 952                         if(!strcmp(s, a->name))
 953                         {
 954                                 if (a->initstate) // we can not remove init aliases
 955                                         continue;
 956                                 if(a == cmd->userdefined->alias)
 957                                         cmd->userdefined->alias = a->next;
 958                                 if(p)
 959                                         p->next = a->next;
 960                                 Z_Free(a->value);
 961                                 Z_Free(a);
 962                                 break;
 963                         }
 964                 }
 965                 if(!a)
 966                         Con_Printf("unalias: %s alias not found\n", s);
 967         }
 968 }
 969
 970 /*
 971 =============================================================================
 972
 973                                         COMMAND EXECUTION
 974
 975 =============================================================================
 976 */
 977
 978 static const char *Cmd_GetDirectCvarValue(cmd_state_t *cmd, const char *varname, cmdalias_t *alias, qboolean *is_multiple)
 979 {
 980         cvar_t *cvar;
 981         long argno;
 982         char *endptr;
 983         static char vabuf[1024]; // cmd_mutex
 984
 985         if(is_multiple)
 986                 *is_multiple = false;
 987
 988         if(!varname || !*varname)
 989                 return NULL;
 990
 991         if(alias)
 992         {
 993                 if(!strcmp(varname, "*"))
 994                 {
 995                         if(is_multiple)
 996                                 *is_multiple = true;
 997                         return Cmd_Args(cmd);
 998                 }
 999                 else if(!strcmp(varname, "#"))
1000                 {
1001                         return va(vabuf, sizeof(vabuf), "%d", Cmd_Argc(cmd));
1002                 }
1003                 else if(varname[strlen(varname) - 1] == '-')
1004                 {
1005                         argno = strtol(varname, &endptr, 10);
1006                         if(endptr == varname + strlen(varname) - 1)
1007                         {
1008                                 // whole string is a number, apart from the -
1009                                 const char *p = Cmd_Args(cmd);
1010                                 for(; argno > 1; --argno)
1011                                         if(!COM_ParseToken_Console(&p))
1012                                                 break;
1013                                 if(p)
1014                                 {
1015                                         if(is_multiple)
1016                                                 *is_multiple = true;
1017
1018                                         // kill pre-argument whitespace
1019                                         for (;*p && ISWHITESPACE(*p);p++)
1020                                                 ;
1021
1022                                         return p;
1023                                 }
1024                         }
1025                 }
1026                 else
1027                 {
1028                         argno = strtol(varname, &endptr, 10);
1029                         if(*endptr == 0)
1030                         {
1031                                 // whole string is a number
1032                                 // NOTE: we already made sure we don't have an empty cvar name!
1033                                 if(argno >= 0 && argno < Cmd_Argc(cmd))
1034                                         return Cmd_Argv(cmd, argno);
1035                         }
1036                 }
1037         }
1038
1039         if((cvar = Cvar_FindVar(cmd->cvars, varname, cmd->cvars_flagsmask, false)) && !(cvar->flags & CVAR_PRIVATE))
1040                 return cvar->string;
1041
1042         return NULL;
1043 }
1044
1045 qboolean Cmd_QuoteString(char *out, size_t outlen, const char *in, const char *quoteset, qboolean putquotes)
1046 {
1047         qboolean quote_quot = !!strchr(quoteset, '"');
1048         qboolean quote_backslash = !!strchr(quoteset, '\\');
1049         qboolean quote_dollar = !!strchr(quoteset, '$');
1050
1051         if(putquotes)
1052         {
1053                 if(outlen <= 2)
1054                 {
1055                         *out++ = 0;
1056                         return false;
1057                 }
1058                 *out++ = '"'; --outlen;
1059                 --outlen;
1060         }
1061
1062         while(*in)
1063         {
1064                 if(*in == '"' && quote_quot)
1065                 {
1066                         if(outlen <= 2)
1067                                 goto fail;
1068                         *out++ = '\\'; --outlen;
1069                         *out++ = '"'; --outlen;
1070                 }
1071                 else if(*in == '\\' && quote_backslash)
1072                 {
1073                         if(outlen <= 2)
1074                                 goto fail;
1075                         *out++ = '\\'; --outlen;
1076                         *out++ = '\\'; --outlen;
1077                 }
1078                 else if(*in == '$' && quote_dollar)
1079                 {
1080                         if(outlen <= 2)
1081                                 goto fail;
1082                         *out++ = '$'; --outlen;
1083                         *out++ = '$'; --outlen;
1084                 }
1085                 else
1086                 {
1087                         if(outlen <= 1)
1088                                 goto fail;
1089                         *out++ = *in; --outlen;
1090                 }
1091                 ++in;
1092         }
1093         if(putquotes)
1094                 *out++ = '"';
1095         *out++ = 0;
1096         return true;
1097 fail:
1098         if(putquotes)
1099                 *out++ = '"';
1100         *out++ = 0;
1101         return false;
1102 }
1103
1104 static const char *Cmd_GetCvarValue(cmd_state_t *cmd, const char *var, size_t varlen, cmdalias_t *alias)
1105 {
1106         static char varname[MAX_INPUTLINE]; // cmd_mutex
1107         static char varval[MAX_INPUTLINE]; // cmd_mutex
1108         const char *varstr = NULL;
1109         char *varfunc;
1110         qboolean required = false;
1111         qboolean optional = false;
1112         static char asis[] = "asis"; // just to suppress const char warnings
1113
1114         if(varlen >= MAX_INPUTLINE)
1115                 varlen = MAX_INPUTLINE - 1;
1116         memcpy(varname, var, varlen);
1117         varname[varlen] = 0;
1118         varfunc = strchr(varname, ' ');
1119
1120         if(varfunc)
1121         {
1122                 *varfunc = 0;
1123                 ++varfunc;
1124         }
1125
1126         if(*var == 0)
1127         {
1128                 // empty cvar name?
1129                 if(alias)
1130                         Con_Warnf("Warning: Could not expand $ in alias %s\n", alias->name);
1131                 else
1132                         Con_Warnf("Warning: Could not expand $\n");
1133                 return "$";
1134         }
1135
1136         if(varfunc)
1137         {
1138                 char *p;
1139                 // ? means optional
1140                 while((p = strchr(varfunc, '?')))
1141                 {
1142                         optional = true;
1143                         memmove(p, p+1, strlen(p)); // with final NUL
1144                 }
1145                 // ! means required
1146                 while((p = strchr(varfunc, '!')))
1147                 {
1148                         required = true;
1149                         memmove(p, p+1, strlen(p)); // with final NUL
1150                 }
1151                 // kill spaces
1152                 while((p = strchr(varfunc, ' ')))
1153                 {
1154                         memmove(p, p+1, strlen(p)); // with final NUL
1155                 }
1156                 // if no function is left, NULL it
1157                 if(!*varfunc)
1158                         varfunc = NULL;
1159         }
1160
1161         if(varname[0] == '$')
1162                 varstr = Cmd_GetDirectCvarValue(cmd, Cmd_GetDirectCvarValue(cmd, varname + 1, alias, NULL), alias, NULL);
1163         else
1164         {
1165                 qboolean is_multiple = false;
1166                 // Exception: $* and $n- don't use the quoted form by default
1167                 varstr = Cmd_GetDirectCvarValue(cmd, varname, alias, &is_multiple);
1168                 if(is_multiple)
1169                         if(!varfunc)
1170                                 varfunc = asis;
1171         }
1172
1173         if(!varstr)
1174         {
1175                 if(required)
1176                 {
1177                         if(alias)
1178                                 Con_Errorf("Error: Could not expand $%s in alias %s\n", varname, alias->name);
1179                         else
1180                                 Con_Errorf("Error: Could not expand $%s\n", varname);
1181                         return NULL;
1182                 }
1183                 else if(optional)
1184                 {
1185                         return "";
1186                 }
1187                 else
1188                 {
1189                         if(alias)
1190                                 Con_Warnf("Warning: Could not expand $%s in alias %s\n", varname, alias->name);
1191                         else
1192                                 Con_Warnf("Warning: Could not expand $%s\n", varname);
1193                         dpsnprintf(varval, sizeof(varval), "$%s", varname);
1194                         return varval;
1195                 }
1196         }
1197
1198         if(!varfunc || !strcmp(varfunc, "q")) // note: quoted form is default, use "asis" to override!
1199         {
1200                 // quote it so it can be used inside double quotes
1201                 // we just need to replace " by \", and of course, double backslashes
1202                 Cmd_QuoteString(varval, sizeof(varval), varstr, "\"\\", false);
1203                 return varval;
1204         }
1205         else if(!strcmp(varfunc, "asis"))
1206         {
1207                 return varstr;
1208         }
1209         else
1210                 Con_Printf("Unknown variable function %s\n", varfunc);
1211
1212         return varstr;
1213 }
1214
1215 /*
1216 Cmd_PreprocessString
1217
1218 Preprocesses strings and replaces $*, $param#, $cvar accordingly. Also strips comments.
1219 */
1220 static qboolean Cmd_PreprocessString(cmd_state_t *cmd, const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias ) {
1221         const char *in;
1222         size_t eat, varlen;
1223         unsigned outlen;
1224         const char *val;
1225
1226         // don't crash if there's no room in the outtext buffer
1227         if( maxoutlen == 0 ) {
1228                 return false;
1229         }
1230         maxoutlen--; // because of \0
1231
1232         in = intext;
1233         outlen = 0;
1234
1235         while( *in && outlen < maxoutlen ) {
1236                 if( *in == '$' ) {
1237                         // this is some kind of expansion, see what comes after the $
1238                         in++;
1239
1240                         // The console does the following preprocessing:
1241                         //
1242                         // - $$ is transformed to a single dollar sign.
1243                         // - $var or ${var} are expanded to the contents of the named cvar,
1244                         //   with quotation marks and backslashes quoted so it can safely
1245                         //   be used inside quotation marks (and it should always be used
1246                         //   that way)
1247                         // - ${var asis} inserts the cvar value as is, without doing this
1248                         //   quoting
1249                         // - ${var ?} silently expands to the empty string if
1250                         //   $var does not exist
1251                         // - ${var !} fails expansion and executes nothing if
1252                         //   $var does not exist
1253                         // - prefix the cvar name with a dollar sign to do indirection;
1254                         //   for example, if $x has the value timelimit, ${$x} will return
1255                         //   the value of $timelimit
1256                         // - when expanding an alias, the special variable name $* refers
1257                         //   to all alias parameters, and a number refers to that numbered
1258                         //   alias parameter, where the name of the alias is $0, the first
1259                         //   parameter is $1 and so on; as a special case, $* inserts all
1260                         //   parameters, without extra quoting, so one can use $* to just
1261                         //   pass all parameters around. All parameters starting from $n
1262                         //   can be referred to as $n- (so $* is equivalent to $1-).
1263                         // - ${* q} and ${n- q} force quoting anyway
1264                         //
1265                         // Note: when expanding an alias, cvar expansion is done in the SAME step
1266                         // as alias expansion so that alias parameters or cvar values containing
1267                         // dollar signs have no unwanted bad side effects. However, this needs to
1268                         // be accounted for when writing complex aliases. For example,
1269                         //   alias foo "set x NEW; echo $x"
1270                         // actually expands to
1271                         //   "set x NEW; echo OLD"
1272                         // and will print OLD! To work around this, use a second alias:
1273                         //   alias foo "set x NEW; foo2"
1274                         //   alias foo2 "echo $x"
1275                         //
1276                         // Also note: lines starting with alias are exempt from cvar expansion.
1277                         // If you want cvar expansion, write "alias" instead:
1278                         //
1279                         //   set x 1
1280                         //   alias foo "echo $x"
1281                         //   "alias" bar "echo $x"
1282                         //   set x 2
1283                         //
1284                         // foo will print 2, because the variable $x will be expanded when the alias
1285                         // gets expanded. bar will print 1, because the variable $x was expanded
1286                         // at definition time. foo can be equivalently defined as
1287                         //
1288                         //   "alias" foo "echo $$x"
1289                         //
1290                         // because at definition time, $$ will get replaced to a single $.
1291
1292                         if( *in == '$' ) {
1293                                 val = "$";
1294                                 eat = 1;
1295                         } else if(*in == '{') {
1296                                 varlen = strcspn(in + 1, "}");
1297                                 if(in[varlen + 1] == '}')
1298                                 {
1299                                         val = Cmd_GetCvarValue(cmd, in + 1, varlen, alias);
1300                                         if(!val)
1301                                                 return false;
1302                                         eat = varlen + 2;
1303                                 }
1304                                 else
1305                                 {
1306                                         // ran out of data?
1307                                         val = NULL;
1308                                         eat = varlen + 1;
1309                                 }
1310                         } else {
1311                                 varlen = strspn(in, "#*0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-");
1312                                 val = Cmd_GetCvarValue(cmd, in, varlen, alias);
1313                                 if(!val)
1314                                         return false;
1315                                 eat = varlen;
1316                         }
1317                         if(val)
1318                         {
1319                                 // insert the cvar value
1320                                 while(*val && outlen < maxoutlen)
1321                                         outtext[outlen++] = *val++;
1322                                 in += eat;
1323                         }
1324                         else
1325                         {
1326                                 // copy the unexpanded text
1327                                 outtext[outlen++] = '$';
1328                                 while(eat && outlen < maxoutlen)
1329                                 {
1330                                         outtext[outlen++] = *in++;
1331                                         --eat;
1332                                 }
1333                         }
1334                 }
1335                 else
1336                         outtext[outlen++] = *in++;
1337         }
1338         outtext[outlen] = 0;
1339         return true;
1340 }
1341
1342 /*
1343 ============
1344 Cmd_ExecuteAlias
1345
1346 Called for aliases and fills in the alias into the cbuffer
1347 ============
1348 */
1349 static void Cmd_ExecuteAlias (cmd_state_t *cmd, cmdalias_t *alias)
1350 {
1351         static char buffer[ MAX_INPUTLINE ]; // cmd_mutex
1352         static char buffer2[ MAX_INPUTLINE ]; // cmd_mutex
1353         qboolean ret = Cmd_PreprocessString( cmd, alias->value, buffer, sizeof(buffer) - 2, alias );
1354         if(!ret)
1355                 return;
1356         // insert at start of command buffer, so that aliases execute in order
1357         // (fixes bug introduced by Black on 20050705)
1358
1359         // Note: Cbuf_PreprocessString will be called on this string AGAIN! So we
1360         // have to make sure that no second variable expansion takes place, otherwise
1361         // alias parameters containing dollar signs can have bad effects.
1362         Cmd_QuoteString(buffer2, sizeof(buffer2), buffer, "$", false);
1363         Cbuf_InsertText(cmd, buffer2);
1364 }
1365
1366 /*
1367 ========
1368 Cmd_List
1369
1370         CmdList Added by EvilTypeGuy eviltypeguy@qeradiant.com
1371         Thanks to Matthias "Maddes" Buecher, http://www.inside3d.com/qip/
1372
1373 ========
1374 */
1375 static void Cmd_List_f (cmd_state_t *cmd)
1376 {
1377         cmd_function_t *func;
1378         const char *partial;
1379         size_t len;
1380         int count;
1381         qboolean ispattern;
1382
1383         if (Cmd_Argc(cmd) > 1)
1384         {
1385                 partial = Cmd_Argv(cmd, 1);
1386                 len = strlen(partial);
1387                 ispattern = (strchr(partial, '*') || strchr(partial, '?'));
1388         }
1389         else
1390         {
1391                 partial = NULL;
1392                 len = 0;
1393                 ispattern = false;
1394         }
1395
1396         count = 0;
1397         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1398         {
1399                 if (partial && (ispattern ? !matchpattern_with_separator(func->name, partial, false, "", false) : strncmp(partial, func->name, len)))
1400                         continue;
1401                 Con_Printf("%s : %s\n", func->name, func->description);
1402                 count++;
1403         }
1404         for (func = cmd->engine_functions; func; func = func->next)
1405         {
1406                 if (partial && (ispattern ? !matchpattern_with_separator(func->name, partial, false, "", false) : strncmp(partial, func->name, len)))
1407                         continue;
1408                 Con_Printf("%s : %s\n", func->name, func->description);
1409                 count++;
1410         }
1411
1412         if (len)
1413         {
1414                 if(ispattern)
1415                         Con_Printf("%i Command%s matching \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1416                 else
1417                         Con_Printf("%i Command%s beginning with \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1418         }
1419         else
1420                 Con_Printf("%i Command%s\n\n", count, (count > 1) ? "s" : "");
1421 }
1422
1423 static void Cmd_Apropos_f(cmd_state_t *cmd)
1424 {
1425         cmd_function_t *func;
1426         cvar_t *cvar;
1427         cmdalias_t *alias;
1428         const char *partial;
1429         int count;
1430         qboolean ispattern;
1431         char vabuf[1024];
1432
1433         if (Cmd_Argc(cmd) > 1)
1434                 partial = Cmd_Args(cmd);
1435         else
1436         {
1437                 Con_Printf("usage: apropos <string>\n");
1438                 return;
1439         }
1440
1441         ispattern = partial && (strchr(partial, '*') || strchr(partial, '?'));
1442         if(!ispattern)
1443                 partial = va(vabuf, sizeof(vabuf), "*%s*", partial);
1444
1445         count = 0;
1446         for (cvar = cmd->cvars->vars; cvar; cvar = cvar->next)
1447         {
1448                 if (!matchpattern_with_separator(cvar->name, partial, true, "", false))
1449                 if (!matchpattern_with_separator(cvar->description, partial, true, "", false))
1450                         continue;
1451                 Con_Printf ("cvar ");
1452                 Cvar_PrintHelp(cvar, true);
1453                 count++;
1454         }
1455         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1456         {
1457                 if (!matchpattern_with_separator(func->name, partial, true, "", false))
1458                         if (!matchpattern_with_separator(func->description, partial, true, "", false))
1459                                 continue;
1460                 Con_Printf("command ^2%s^7: %s\n", func->name, func->description);
1461                 count++;
1462         }
1463         for (func = cmd->engine_functions; func; func = func->next)
1464         {
1465                 if (!matchpattern_with_separator(func->name, partial, true, "", false))
1466                 if (!matchpattern_with_separator(func->description, partial, true, "", false))
1467                         continue;
1468                 Con_Printf("command ^2%s^7: %s\n", func->name, func->description);
1469                 count++;
1470         }
1471         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1472         {
1473                 // procede here a bit differently as an alias value always got a final \n
1474                 if (!matchpattern_with_separator(alias->name, partial, true, "", false))
1475                 if (!matchpattern_with_separator(alias->value, partial, true, "\n", false)) // when \n is as separator wildcards don't match it
1476                         continue;
1477                 Con_Printf("alias ^5%s^7: %s", alias->name, alias->value); // do not print an extra \n
1478                 count++;
1479         }
1480         Con_Printf("%i result%s\n\n", count, (count > 1) ? "s" : "");
1481 }
1482
1483 /*
1484 ============
1485 Cmd_Init
1486 ============
1487 */
1488 void Cmd_Init(void)
1489 {
1490         cmd_iter_t *cmd_iter;
1491         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
1492         {
1493                 cmd_state_t *cmd = cmd_iter->cmd;
1494                 cmd->mempool = Mem_AllocPool("commands", 0, NULL);
1495                 // space for commands and script files
1496                 cmd->text.data = cmd->text_buf;
1497                 cmd->text.maxsize = sizeof(cmd->text_buf);
1498                 cmd->text.cursize = 0;
1499                 cmd->null_string = "";
1500         }
1501         // client console can see server cvars because the user may start a server
1502         cmd_client.cvars = &cvars_all;
1503         cmd_client.cvars_flagsmask = CVAR_CLIENT | CVAR_SERVER;
1504         cmd_client.userdefined = &cmd_userdefined_all;
1505         // stuffcmd from server has access to the reasonable client things, but it probably doesn't need to access the client's server-only cvars
1506         cmd_clientfromserver.cvars = &cvars_all;
1507         cmd_clientfromserver.cvars_flagsmask = CVAR_CLIENT;
1508         cmd_clientfromserver.userdefined = &cmd_userdefined_all;
1509         // dedicated server console can only see server cvars, there is no client
1510         cmd_server.cvars = &cvars_all;
1511         cmd_server.cvars_flagsmask = CVAR_SERVER;
1512         cmd_server.userdefined = &cmd_userdefined_all;
1513         // server commands received from clients have no reason to access cvars, cvar expansion seems perilous.
1514         cmd_serverfromclient.cvars = &cvars_null;
1515         cmd_serverfromclient.cvars_flagsmask = 0;
1516         cmd_serverfromclient.userdefined = &cmd_userdefined_null;
1517 }
1518
1519 void Cmd_Init_Commands(qboolean dedicated_server)
1520 {
1521 //
1522 // register our commands
1523 //
1524         // client-only commands
1525         Cmd_AddCommand(&cmd_client, "cmd", Cmd_ForwardToServer_f, "send a console commandline to the server (used by some mods)");
1526         Cmd_AddCommand(&cmd_clientfromserver, "cmd", Cmd_ForwardToServer_f, "send a console commandline to the server (used by some mods)");
1527         Cmd_AddCommand(&cmd_client, "wait", Cmd_Wait_f, "make script execution wait for next rendered frame");
1528         Cmd_AddCommand(&cmd_client, "cprint", Cmd_Centerprint_f, "print something at the screen center");
1529
1530         // maintenance commands used for upkeep of cvars and saved configs
1531         Cmd_AddCommand(&cmd_client, "stuffcmds", Cmd_StuffCmds_f, "execute commandline parameters (must be present in quake.rc script)");
1532         Cmd_AddCommand(&cmd_client, "cvar_lockdefaults", Cvar_LockDefaults_f, "stores the current values of all cvars into their default values, only used once during startup after parsing default.cfg");
1533         Cmd_AddCommand(&cmd_client, "cvar_resettodefaults_all", Cvar_ResetToDefaults_All_f, "sets all cvars to their locked default values");
1534         Cmd_AddCommand(&cmd_client, "cvar_resettodefaults_nosaveonly", Cvar_ResetToDefaults_NoSaveOnly_f, "sets all non-saved cvars to their locked default values (variables that will not be saved to config.cfg)");
1535         Cmd_AddCommand(&cmd_client, "cvar_resettodefaults_saveonly", Cvar_ResetToDefaults_SaveOnly_f, "sets all saved cvars to their locked default values (variables that will be saved to config.cfg)");
1536         Cmd_AddCommand(&cmd_server, "stuffcmds", Cmd_StuffCmds_f, "execute commandline parameters (must be present in quake.rc script)");
1537         Cmd_AddCommand(&cmd_server, "cvar_lockdefaults", Cvar_LockDefaults_f, "stores the current values of all cvars into their default values, only used once during startup after parsing default.cfg");
1538         Cmd_AddCommand(&cmd_server, "cvar_resettodefaults_all", Cvar_ResetToDefaults_All_f, "sets all cvars to their locked default values");
1539         Cmd_AddCommand(&cmd_server, "cvar_resettodefaults_nosaveonly", Cvar_ResetToDefaults_NoSaveOnly_f, "sets all non-saved cvars to their locked default values (variables that will not be saved to config.cfg)");
1540         Cmd_AddCommand(&cmd_server, "cvar_resettodefaults_saveonly", Cvar_ResetToDefaults_SaveOnly_f, "sets all saved cvars to their locked default values (variables that will be saved to config.cfg)");
1541
1542         // general console commands used in multiple environments
1543         Cmd_AddCommand(&cmd_client, "exec", Cmd_Exec_f, "execute a script file");
1544         Cmd_AddCommand(&cmd_client, "echo",Cmd_Echo_f, "print a message to the console (useful in scripts)");
1545         Cmd_AddCommand(&cmd_client, "alias",Cmd_Alias_f, "create a script function (parameters are passed in as $X (being X a number), $* for all parameters, $X- for all parameters starting from $X). Without arguments show the list of all alias");
1546         Cmd_AddCommand(&cmd_client, "unalias",Cmd_UnAlias_f, "remove an alias");
1547         Cmd_AddCommand(&cmd_client, "set", Cvar_Set_f, "create or change the value of a console variable");
1548         Cmd_AddCommand(&cmd_client, "seta", Cvar_SetA_f, "create or change the value of a console variable that will be saved to config.cfg");
1549         Cmd_AddCommand(&cmd_client, "unset", Cvar_Del_f, "delete a cvar (does not work for static ones like _cl_name, or read-only ones)");
1550         Cmd_AddCommand(&cmd_clientfromserver, "exec", Cmd_Exec_f, "execute a script file");
1551         Cmd_AddCommand(&cmd_clientfromserver, "echo", Cmd_Echo_f, "print a message to the console (useful in scripts)");
1552         Cmd_AddCommand(&cmd_clientfromserver, "alias", Cmd_Alias_f, "create a script function (parameters are passed in as $X (being X a number), $* for all parameters, $X- for all parameters starting from $X). Without arguments show the list of all alias");
1553         Cmd_AddCommand(&cmd_clientfromserver, "unalias", Cmd_UnAlias_f, "remove an alias");
1554         Cmd_AddCommand(&cmd_clientfromserver, "set", Cvar_Set_f, "create or change the value of a console variable");
1555         Cmd_AddCommand(&cmd_clientfromserver, "seta", Cvar_SetA_f, "create or change the value of a console variable that will be saved to config.cfg");
1556         Cmd_AddCommand(&cmd_clientfromserver, "unset", Cvar_Del_f, "delete a cvar (does not work for static ones like _cl_name, or read-only ones)");
1557         Cmd_AddCommand(&cmd_server, "exec", Cmd_Exec_f, "execute a script file");
1558         Cmd_AddCommand(&cmd_server, "echo", Cmd_Echo_f, "print a message to the console (useful in scripts)");
1559         Cmd_AddCommand(&cmd_server, "alias", Cmd_Alias_f, "create a script function (parameters are passed in as $X (being X a number), $* for all parameters, $X- for all parameters starting from $X). Without arguments show the list of all alias");
1560         Cmd_AddCommand(&cmd_server, "unalias", Cmd_UnAlias_f, "remove an alias");
1561         Cmd_AddCommand(&cmd_server, "set", Cvar_Set_f, "create or change the value of a console variable");
1562         Cmd_AddCommand(&cmd_server, "seta", Cvar_SetA_f, "create or change the value of a console variable that will be saved to config.cfg");
1563         Cmd_AddCommand(&cmd_server, "unset", Cvar_Del_f, "delete a cvar (does not work for static ones like _cl_name, or read-only ones)");
1564
1565 #ifdef FILLALLCVARSWITHRUBBISH
1566         Cmd_AddCommand(&cmd_client, "fillallcvarswithrubbish", Cvar_FillAll_f, "fill all cvars with a specified number of characters to provoke buffer overruns");
1567         Cmd_AddCommand(&cmd_server, "fillallcvarswithrubbish", Cvar_FillAll_f, "fill all cvars with a specified number of characters to provoke buffer overruns");
1568 #endif /* FILLALLCVARSWITHRUBBISH */
1569
1570         // 2000-01-09 CmdList, CvarList commands By Matthias "Maddes" Buecher
1571         // Added/Modified by EvilTypeGuy eviltypeguy@qeradiant.com
1572         Cmd_AddCommand(&cmd_client, "cmdlist", Cmd_List_f, "lists all console commands beginning with the specified prefix or matching the specified wildcard pattern");
1573         Cmd_AddCommand(&cmd_client, "cvarlist", Cvar_List_f, "lists all console variables beginning with the specified prefix or matching the specified wildcard pattern");
1574         Cmd_AddCommand(&cmd_client, "apropos", Cmd_Apropos_f, "lists all console variables/commands/aliases containing the specified string in the name or description");
1575         Cmd_AddCommand(&cmd_server, "cmdlist", Cmd_List_f, "lists all console commands beginning with the specified prefix or matching the specified wildcard pattern");
1576         Cmd_AddCommand(&cmd_server, "cvarlist", Cvar_List_f, "lists all console variables beginning with the specified prefix or matching the specified wildcard pattern");
1577         Cmd_AddCommand(&cmd_server, "apropos", Cmd_Apropos_f, "lists all console variables/commands/aliases containing the specified string in the name or description");
1578
1579         Cmd_AddCommand(&cmd_client, "defer", Cmd_Defer_f, "execute a command in the future");
1580         Cmd_AddCommand(&cmd_server, "defer", Cmd_Defer_f, "execute a command in the future");
1581
1582         // DRESK - 5/14/06
1583         // Support Doom3-style Toggle Command
1584         Cmd_AddCommand(&cmd_client, "toggle", Cmd_Toggle_f, "toggles a console variable's values (use for more info)");
1585         Cmd_AddCommand(&cmd_server, "toggle", Cmd_Toggle_f, "toggles a console variable's values (use for more info)");
1586         Cmd_AddCommand(&cmd_clientfromserver, "toggle", Cmd_Toggle_f, "toggles a console variable's values (use for more info)");
1587 }
1588
1589 /*
1590 ============
1591 Cmd_Shutdown
1592 ============
1593 */
1594 void Cmd_Shutdown(void)
1595 {
1596         cmd_iter_t *cmd_iter;
1597         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
1598         {
1599                 cmd_state_t *cmd = cmd_iter->cmd;
1600
1601                 if (cmd->text_lock)
1602                 {
1603                         // we usually have this locked when we get here from Host_Quit_f
1604                         Cbuf_Unlock(cmd);
1605                 }
1606
1607                 Mem_FreePool(&cmd->mempool);
1608         }
1609 }
1610
1611 /*
1612 ============
1613 Cmd_Argc
1614 ============
1615 */
1616 int             Cmd_Argc (cmd_state_t *cmd)
1617 {
1618         return cmd->argc;
1619 }
1620
1621 /*
1622 ============
1623 Cmd_Argv
1624 ============
1625 */
1626 const char *Cmd_Argv(cmd_state_t *cmd, int arg)
1627 {
1628         if (arg >= cmd->argc )
1629                 return cmd->null_string;
1630         return cmd->argv[arg];
1631 }
1632
1633 /*
1634 ============
1635 Cmd_Args
1636 ============
1637 */
1638 const char *Cmd_Args (cmd_state_t *cmd)
1639 {
1640         return cmd->args;
1641 }
1642
1643
1644 /*
1645 ============
1646 Cmd_TokenizeString
1647
1648 Parses the given string into command line tokens.
1649 ============
1650 */
1651 // AK: This function should only be called from ExcuteString because the current design is a bit of an hack
1652 static void Cmd_TokenizeString (cmd_state_t *cmd, const char *text)
1653 {
1654         int l;
1655
1656         cmd->argc = 0;
1657         cmd->args = NULL;
1658
1659         while (1)
1660         {
1661                 // skip whitespace up to a /n
1662                 while (*text && ISWHITESPACE(*text) && *text != '\r' && *text != '\n')
1663                         text++;
1664
1665                 // line endings:
1666                 // UNIX: \n
1667                 // Mac: \r
1668                 // Windows: \r\n
1669                 if (*text == '\n' || *text == '\r')
1670                 {
1671                         // a newline separates commands in the buffer
1672                         if (*text == '\r' && text[1] == '\n')
1673                                 text++;
1674                         text++;
1675                         break;
1676                 }
1677
1678                 if (!*text)
1679                         return;
1680
1681                 if (cmd->argc == 1)
1682                         cmd->args = text;
1683
1684                 if (!COM_ParseToken_Console(&text))
1685                         return;
1686
1687                 if (cmd->argc < MAX_ARGS)
1688                 {
1689                         l = (int)strlen(com_token) + 1;
1690                         if (cmd->tokenizebufferpos + l > CMD_TOKENIZELENGTH)
1691                         {
1692                                 Con_Printf("Cmd_TokenizeString: ran out of %i character buffer space for command arguements\n", CMD_TOKENIZELENGTH);
1693                                 break;
1694                         }
1695                         memcpy (cmd->tokenizebuffer + cmd->tokenizebufferpos, com_token, l);
1696                         cmd->argv[cmd->argc] = cmd->tokenizebuffer + cmd->tokenizebufferpos;
1697                         cmd->tokenizebufferpos += l;
1698                         cmd->argc++;
1699                 }
1700         }
1701 }
1702
1703
1704 /*
1705 ============
1706 Cmd_AddCommand
1707 ============
1708 */
1709 void Cmd_AddCommand(cmd_state_t *cmd, const char *cmd_name, xcommand_t function, const char *description)
1710 {
1711         cmd_function_t *func;
1712         cmd_function_t *prev, *current;
1713
1714 // fail if the command is a variable name
1715         if (Cvar_FindVar(cmd->cvars, cmd_name, ~0, true))
1716         {
1717                 Con_Printf("Cmd_AddCommand: %s already defined as a var\n", cmd_name);
1718                 return;
1719         }
1720
1721         if (function)
1722         {
1723                 // fail if the command already exists in this interpreter
1724                 for (func = cmd->engine_functions; func; func = func->next)
1725                 {
1726                         if (!strcmp(cmd_name, func->name))
1727                         {
1728                                 Con_Printf("Cmd_AddCommand: %s already defined\n", cmd_name);
1729                                 return;
1730                         }
1731                 }
1732
1733                 func = (cmd_function_t *)Mem_Alloc(cmd->mempool, sizeof(cmd_function_t));
1734                 func->name = cmd_name;
1735                 func->function = function;
1736                 func->description = description;
1737                 func->next = cmd->engine_functions;
1738
1739                 // insert it at the right alphanumeric position
1740                 for (prev = NULL, current = cmd->engine_functions; current && strcmp(current->name, func->name) < 0; prev = current, current = current->next)
1741                         ;
1742                 if (prev) {
1743                         prev->next = func;
1744                 }
1745                 else {
1746                         cmd->engine_functions = func;
1747                 }
1748                 func->next = current;
1749         }
1750         else
1751         {
1752                 // mark csqcfunc if the function already exists in the csqc_functions list
1753                 for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1754                 {
1755                         if (!strcmp(cmd_name, func->name))
1756                         {
1757                                 func->csqcfunc = true; //[515]: csqc
1758                                 return;
1759                         }
1760                 }
1761
1762
1763                 func = (cmd_function_t *)Mem_Alloc(cmd->mempool, sizeof(cmd_function_t));
1764                 func->name = cmd_name;
1765                 func->function = function;
1766                 func->description = description;
1767                 func->csqcfunc = true; //[515]: csqc
1768                 func->next = cmd->userdefined->csqc_functions;
1769
1770                 // insert it at the right alphanumeric position
1771                 for (prev = NULL, current = cmd->userdefined->csqc_functions; current && strcmp(current->name, func->name) < 0; prev = current, current = current->next)
1772                         ;
1773                 if (prev) {
1774                         prev->next = func;
1775                 }
1776                 else {
1777                         cmd->userdefined->csqc_functions = func;
1778                 }
1779                 func->next = current;
1780         }
1781 }
1782
1783 /*
1784 ============
1785 Cmd_Exists
1786 ============
1787 */
1788 qboolean Cmd_Exists (cmd_state_t *cmd, const char *cmd_name)
1789 {
1790         cmd_function_t  *func;
1791
1792         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1793                 if (!strcmp(cmd_name, func->name))
1794                         return true;
1795
1796         for (func=cmd->engine_functions ; func ; func=func->next)
1797                 if (!strcmp (cmd_name,func->name))
1798                         return true;
1799
1800         return false;
1801 }
1802
1803
1804 /*
1805 ============
1806 Cmd_CompleteCommand
1807 ============
1808 */
1809 const char *Cmd_CompleteCommand (cmd_state_t *cmd, const char *partial)
1810 {
1811         cmd_function_t *func;
1812         size_t len;
1813
1814         len = strlen(partial);
1815
1816         if (!len)
1817                 return NULL;
1818
1819 // check functions
1820         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1821                 if (!strncasecmp(partial, func->name, len))
1822                         return func->name;
1823
1824         for (func = cmd->engine_functions; func; func = func->next)
1825                 if (!strncasecmp(partial, func->name, len))
1826                         return func->name;
1827
1828         return NULL;
1829 }
1830
1831 /*
1832         Cmd_CompleteCountPossible
1833
1834         New function for tab-completion system
1835         Added by EvilTypeGuy
1836         Thanks to Fett erich@heintz.com
1837         Thanks to taniwha
1838
1839 */
1840 int Cmd_CompleteCountPossible (cmd_state_t *cmd, const char *partial)
1841 {
1842         cmd_function_t *func;
1843         size_t len;
1844         int h;
1845
1846         h = 0;
1847         len = strlen(partial);
1848
1849         if (!len)
1850                 return 0;
1851
1852         // Loop through the command list and count all partial matches
1853         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1854                 if (!strncasecmp(partial, func->name, len))
1855                         h++;
1856
1857         for (func = cmd->engine_functions; func; func = func->next)
1858                 if (!strncasecmp(partial, func->name, len))
1859                         h++;
1860
1861         return h;
1862 }
1863
1864 /*
1865         Cmd_CompleteBuildList
1866
1867         New function for tab-completion system
1868         Added by EvilTypeGuy
1869         Thanks to Fett erich@heintz.com
1870         Thanks to taniwha
1871
1872 */
1873 const char **Cmd_CompleteBuildList (cmd_state_t *cmd, const char *partial)
1874 {
1875         cmd_function_t *func;
1876         size_t len = 0;
1877         size_t bpos = 0;
1878         size_t sizeofbuf = (Cmd_CompleteCountPossible (cmd, partial) + 1) * sizeof (const char *);
1879         const char **buf;
1880
1881         len = strlen(partial);
1882         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
1883         // Loop through the functions lists and print all matches
1884         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1885                 if (!strncasecmp(partial, func->name, len))
1886                         buf[bpos++] = func->name;
1887         for (func = cmd->engine_functions; func; func = func->next)
1888                 if (!strncasecmp(partial, func->name, len))
1889                         buf[bpos++] = func->name;
1890
1891         buf[bpos] = NULL;
1892         return buf;
1893 }
1894
1895 // written by LadyHavoc
1896 void Cmd_CompleteCommandPrint (cmd_state_t *cmd, const char *partial)
1897 {
1898         cmd_function_t *func;
1899         size_t len = strlen(partial);
1900         // Loop through the command list and print all matches
1901         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1902                 if (!strncasecmp(partial, func->name, len))
1903                         Con_Printf("^2%s^7: %s\n", func->name, func->description);
1904         for (func = cmd->engine_functions; func; func = func->next)
1905                 if (!strncasecmp(partial, func->name, len))
1906                         Con_Printf("^2%s^7: %s\n", func->name, func->description);
1907 }
1908
1909 /*
1910         Cmd_CompleteAlias
1911
1912         New function for tab-completion system
1913         Added by EvilTypeGuy
1914         Thanks to Fett erich@heintz.com
1915         Thanks to taniwha
1916
1917 */
1918 const char *Cmd_CompleteAlias (cmd_state_t *cmd, const char *partial)
1919 {
1920         cmdalias_t *alias;
1921         size_t len;
1922
1923         len = strlen(partial);
1924
1925         if (!len)
1926                 return NULL;
1927
1928         // Check functions
1929         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1930                 if (!strncasecmp(partial, alias->name, len))
1931                         return alias->name;
1932
1933         return NULL;
1934 }
1935
1936 // written by LadyHavoc
1937 void Cmd_CompleteAliasPrint (cmd_state_t *cmd, const char *partial)
1938 {
1939         cmdalias_t *alias;
1940         size_t len = strlen(partial);
1941         // Loop through the alias list and print all matches
1942         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1943                 if (!strncasecmp(partial, alias->name, len))
1944                         Con_Printf("^5%s^7: %s", alias->name, alias->value);
1945 }
1946
1947
1948 /*
1949         Cmd_CompleteAliasCountPossible
1950
1951         New function for tab-completion system
1952         Added by EvilTypeGuy
1953         Thanks to Fett erich@heintz.com
1954         Thanks to taniwha
1955
1956 */
1957 int Cmd_CompleteAliasCountPossible (cmd_state_t *cmd, const char *partial)
1958 {
1959         cmdalias_t      *alias;
1960         size_t          len;
1961         int                     h;
1962
1963         h = 0;
1964
1965         len = strlen(partial);
1966
1967         if (!len)
1968                 return 0;
1969
1970         // Loop through the command list and count all partial matches
1971         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1972                 if (!strncasecmp(partial, alias->name, len))
1973                         h++;
1974
1975         return h;
1976 }
1977
1978 /*
1979         Cmd_CompleteAliasBuildList
1980
1981         New function for tab-completion system
1982         Added by EvilTypeGuy
1983         Thanks to Fett erich@heintz.com
1984         Thanks to taniwha
1985
1986 */
1987 const char **Cmd_CompleteAliasBuildList (cmd_state_t *cmd, const char *partial)
1988 {
1989         cmdalias_t *alias;
1990         size_t len = 0;
1991         size_t bpos = 0;
1992         size_t sizeofbuf = (Cmd_CompleteAliasCountPossible (cmd, partial) + 1) * sizeof (const char *);
1993         const char **buf;
1994
1995         len = strlen(partial);
1996         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
1997         // Loop through the alias list and print all matches
1998         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1999                 if (!strncasecmp(partial, alias->name, len))
2000                         buf[bpos++] = alias->name;
2001
2002         buf[bpos] = NULL;
2003         return buf;
2004 }
2005
2006 // TODO: Make this more generic?
2007 void Cmd_ClearCSQCCommands (cmd_state_t *cmd)
2008 {
2009         cmd_function_t *func;
2010         cmd_function_t **next = &cmd->userdefined->csqc_functions;
2011
2012         while(*next)
2013         {
2014                 func = *next;
2015                 *next = func->next;
2016                 Z_Free(func);
2017         }
2018 }
2019
2020 /*
2021 ============
2022 Cmd_ExecuteString
2023
2024 A complete command line has been parsed, so try to execute it
2025 FIXME: lookupnoadd the token to speed search?
2026 ============
2027 */
2028 extern hook_t *csqc_concmd;
2029
2030 void Cmd_ExecuteString (cmd_state_t *cmd, const char *text, cmd_source_t src, qboolean lockmutex)
2031 {
2032         int oldpos;
2033         cmd_function_t *func;
2034         cmdalias_t *a;
2035         if (lockmutex)
2036                 Cbuf_Lock(cmd);
2037         oldpos = cmd->tokenizebufferpos;
2038         cmd->source = src;
2039
2040         Cmd_TokenizeString (cmd, text);
2041
2042 // execute the command line
2043         if (!Cmd_Argc(cmd))
2044                 goto done; // no tokens
2045
2046 // check functions
2047         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
2048         {
2049                 if (!strcasecmp(cmd->argv[0], func->name))
2050                 {
2051                         if (func->csqcfunc && Hook_Call(csqc_concmd, text)->bval)       //[515]: csqc
2052                                 goto done;
2053                         break;
2054                 }
2055         }
2056
2057         for (func = cmd->engine_functions; func; func=func->next)
2058         {
2059                 if (!strcasecmp (cmd->argv[0], func->name))
2060                 {
2061                         switch (src)
2062                         {
2063                         case src_command:
2064                                 if (func->function)
2065                                         func->function(cmd);
2066                                 else
2067                                         Con_Printf("Command \"%s\" can not be executed\n", Cmd_Argv(cmd, 0));
2068                                 goto done;
2069                         case src_client:
2070                                 if (func->function)
2071                                 {
2072                                         func->function(cmd);
2073                                         goto done;
2074                                 }
2075                         }
2076                         break;
2077                 }
2078         }
2079
2080         // if it's a client command and no command was found, say so.
2081         if (cmd->source == src_client)
2082         {
2083                 Con_Printf("Client \"%s\" tried to execute \"%s\"\n", host_client->name, text);
2084                 goto done;
2085         }
2086
2087 // check alias
2088         for (a=cmd->userdefined->alias ; a ; a=a->next)
2089         {
2090                 if (!strcasecmp (cmd->argv[0], a->name))
2091                 {
2092                         Cmd_ExecuteAlias(cmd, a);
2093                         goto done;
2094                 }
2095         }
2096
2097 // check cvars
2098         if (!Cvar_Command(cmd) && host_framecount > 0) {
2099                 if (cmd == &cmd_clientfromserver) {
2100                         Con_Printf("Server tried to execute \"%s\"\n", Cmd_Argv(cmd, 0));
2101                 } else {
2102                         Con_Printf("Unknown command \"%s\"\n", Cmd_Argv(cmd, 0));
2103                 }
2104         }
2105 done:
2106         cmd->tokenizebufferpos = oldpos;
2107         if (lockmutex)
2108                 Cbuf_Unlock(cmd);
2109 }
2110
2111
2112 /*
2113 ===================
2114 Cmd_ForwardStringToServer
2115
2116 Sends an entire command string over to the server, unprocessed
2117 ===================
2118 */
2119 void Cmd_ForwardStringToServer (const char *s)
2120 {
2121         char temp[128];
2122         if (cls.state != ca_connected)
2123         {
2124                 Con_Printf("Can't \"%s\", not connected\n", s);
2125                 return;
2126         }
2127
2128         if (!cls.netcon)
2129                 return;
2130
2131         // LadyHavoc: thanks to Fuh for bringing the pure evil of SZ_Print to my
2132         // attention, it has been eradicated from here, its only (former) use in
2133         // all of darkplaces.
2134         if (cls.protocol == PROTOCOL_QUAKEWORLD)
2135                 MSG_WriteByte(&cls.netcon->message, qw_clc_stringcmd);
2136         else
2137                 MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
2138         if ((!strncmp(s, "say ", 4) || !strncmp(s, "say_team ", 9)) && cl_locs_enable.integer)
2139         {
2140                 // say/say_team commands can replace % character codes with status info
2141                 while (*s)
2142                 {
2143                         if (*s == '%' && s[1])
2144                         {
2145                                 // handle proquake message macros
2146                                 temp[0] = 0;
2147                                 switch (s[1])
2148                                 {
2149                                 case 'l': // current location
2150                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.movement_origin);
2151                                         break;
2152                                 case 'h': // current health
2153                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_HEALTH]);
2154                                         break;
2155                                 case 'a': // current armor
2156                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ARMOR]);
2157                                         break;
2158                                 case 'x': // current rockets
2159                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ROCKETS]);
2160                                         break;
2161                                 case 'c': // current cells
2162                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_CELLS]);
2163                                         break;
2164                                 // silly proquake macros
2165                                 case 'd': // loc at last death
2166                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.lastdeathorigin);
2167                                         break;
2168                                 case 't': // current time
2169                                         dpsnprintf(temp, sizeof(temp), "%.0f:%.0f", floor(cl.time / 60), cl.time - floor(cl.time / 60) * 60);
2170                                         break;
2171                                 case 'r': // rocket launcher status ("I have RL", "I need rockets", "I need RL")
2172                                         if (!(cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER))
2173                                                 dpsnprintf(temp, sizeof(temp), "I need RL");
2174                                         else if (!cl.stats[STAT_ROCKETS])
2175                                                 dpsnprintf(temp, sizeof(temp), "I need rockets");
2176                                         else
2177                                                 dpsnprintf(temp, sizeof(temp), "I have RL");
2178                                         break;
2179                                 case 'p': // powerup status (outputs "quad" "pent" and "eyes" according to status)
2180                                         if (cl.stats[STAT_ITEMS] & IT_QUAD)
2181                                         {
2182                                                 if (temp[0])
2183                                                         strlcat(temp, " ", sizeof(temp));
2184                                                 strlcat(temp, "quad", sizeof(temp));
2185                                         }
2186                                         if (cl.stats[STAT_ITEMS] & IT_INVULNERABILITY)
2187                                         {
2188                                                 if (temp[0])
2189                                                         strlcat(temp, " ", sizeof(temp));
2190                                                 strlcat(temp, "pent", sizeof(temp));
2191                                         }
2192                                         if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
2193                                         {
2194                                                 if (temp[0])
2195                                                         strlcat(temp, " ", sizeof(temp));
2196                                                 strlcat(temp, "eyes", sizeof(temp));
2197                                         }
2198                                         break;
2199                                 case 'w': // weapon status (outputs "SSG:NG:SNG:GL:RL:LG" with the text between : characters omitted if you lack the weapon)
2200                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_SHOTGUN)
2201                                                 strlcat(temp, "SSG", sizeof(temp));
2202                                         strlcat(temp, ":", sizeof(temp));
2203                                         if (cl.stats[STAT_ITEMS] & IT_NAILGUN)
2204                                                 strlcat(temp, "NG", sizeof(temp));
2205                                         strlcat(temp, ":", sizeof(temp));
2206                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_NAILGUN)
2207                                                 strlcat(temp, "SNG", sizeof(temp));
2208                                         strlcat(temp, ":", sizeof(temp));
2209                                         if (cl.stats[STAT_ITEMS] & IT_GRENADE_LAUNCHER)
2210                                                 strlcat(temp, "GL", sizeof(temp));
2211                                         strlcat(temp, ":", sizeof(temp));
2212                                         if (cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER)
2213                                                 strlcat(temp, "RL", sizeof(temp));
2214                                         strlcat(temp, ":", sizeof(temp));
2215                                         if (cl.stats[STAT_ITEMS] & IT_LIGHTNING)
2216                                                 strlcat(temp, "LG", sizeof(temp));
2217                                         break;
2218                                 default:
2219                                         // not a recognized macro, print it as-is...
2220                                         temp[0] = s[0];
2221                                         temp[1] = s[1];
2222                                         temp[2] = 0;
2223                                         break;
2224                                 }
2225                                 // write the resulting text
2226                                 SZ_Write(&cls.netcon->message, (unsigned char *)temp, (int)strlen(temp));
2227                                 s += 2;
2228                                 continue;
2229                         }
2230                         MSG_WriteByte(&cls.netcon->message, *s);
2231                         s++;
2232                 }
2233                 MSG_WriteByte(&cls.netcon->message, 0);
2234         }
2235         else // any other command is passed on as-is
2236                 SZ_Write(&cls.netcon->message, (const unsigned char *)s, (int)strlen(s) + 1);
2237 }
2238
2239 /*
2240 ===================
2241 Cmd_ForwardToServer
2242
2243 Sends the entire command line over to the server
2244 ===================
2245 */
2246 void Cmd_ForwardToServer_f (cmd_state_t *cmd)
2247 {
2248         const char *s;
2249         char vabuf[1024];
2250         if (!strcasecmp(Cmd_Argv(cmd, 0), "cmd"))
2251         {
2252                 // we want to strip off "cmd", so just send the args
2253                 s = Cmd_Argc(cmd) > 1 ? Cmd_Args(cmd) : "";
2254         }
2255         else
2256         {
2257                 // we need to keep the command name, so send Cmd_Argv(cmd, 0), a space and then Cmd_Args(cmd)
2258                 s = va(vabuf, sizeof(vabuf), "%s %s", Cmd_Argv(cmd, 0), Cmd_Argc(cmd) > 1 ? Cmd_Args(cmd) : "");
2259         }
2260         // don't send an empty forward message if the user tries "cmd" by itself
2261         if (!s || !*s)
2262                 return;
2263         Cmd_ForwardStringToServer(s);
2264 }
2265
2266
2267 /*
2268 ================
2269 Cmd_CheckParm
2270
2271 Returns the position (1 to argc-1) in the command's argument list
2272 where the given parameter apears, or 0 if not present
2273 ================
2274 */
2275
2276 int Cmd_CheckParm (cmd_state_t *cmd, const char *parm)
2277 {
2278         int i;
2279
2280         if (!parm)
2281         {
2282                 Con_Printf ("Cmd_CheckParm: NULL");
2283                 return 0;
2284         }
2285
2286         for (i = 1; i < Cmd_Argc (cmd); i++)
2287                 if (!strcasecmp (parm, Cmd_Argv(cmd, i)))
2288                         return i;
2289
2290         return 0;
2291 }
2292
2293
2294
2295 void Cmd_SaveInitState(void)
2296 {
2297         cmd_iter_t *cmd_iter;
2298         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
2299         {
2300                 cmd_state_t *cmd = cmd_iter->cmd;
2301                 cmd_function_t *f;
2302                 cmdalias_t *a;
2303                 for (f = cmd->userdefined->csqc_functions; f; f = f->next)
2304                         f->initstate = true;
2305                 for (f = cmd->engine_functions; f; f = f->next)
2306                         f->initstate = true;
2307                 for (a = cmd->userdefined->alias; a; a = a->next)
2308                 {
2309                         a->initstate = true;
2310                         a->initialvalue = Mem_strdup(zonemempool, a->value);
2311                 }
2312         }
2313         Cvar_SaveInitState(&cvars_all);
2314 }
2315
2316 void Cmd_RestoreInitState(void)
2317 {
2318         cmd_iter_t *cmd_iter;
2319         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
2320         {
2321                 cmd_state_t *cmd = cmd_iter->cmd;
2322                 cmd_function_t *f, **fp;
2323                 cmdalias_t *a, **ap;
2324                 for (fp = &cmd->userdefined->csqc_functions; (f = *fp);)
2325                 {
2326                         if (f->initstate)
2327                                 fp = &f->next;
2328                         else
2329                         {
2330                                 // destroy this command, it didn't exist at init
2331                                 Con_DPrintf("Cmd_RestoreInitState: Destroying command %s\n", f->name);
2332                                 *fp = f->next;
2333                                 Z_Free(f);
2334                         }
2335                 }
2336                 for (fp = &cmd->engine_functions; (f = *fp);)
2337                 {
2338                         if (f->initstate)
2339                                 fp = &f->next;
2340                         else
2341                         {
2342                                 // destroy this command, it didn't exist at init
2343                                 Con_DPrintf("Cmd_RestoreInitState: Destroying command %s\n", f->name);
2344                                 *fp = f->next;
2345                                 Z_Free(f);
2346                         }
2347                 }
2348                 for (ap = &cmd->userdefined->alias; (a = *ap);)
2349                 {
2350                         if (a->initstate)
2351                         {
2352                                 // restore this alias, it existed at init
2353                                 if (strcmp(a->value ? a->value : "", a->initialvalue ? a->initialvalue : ""))
2354                                 {
2355                                         Con_DPrintf("Cmd_RestoreInitState: Restoring alias %s\n", a->name);
2356                                         if (a->value)
2357                                                 Z_Free(a->value);
2358                                         a->value = Mem_strdup(zonemempool, a->initialvalue);
2359                                 }
2360                                 ap = &a->next;
2361                         }
2362                         else
2363                         {
2364                                 // free this alias, it didn't exist at init...
2365                                 Con_DPrintf("Cmd_RestoreInitState: Destroying alias %s\n", a->name);
2366                                 *ap = a->next;
2367                                 if (a->value)
2368                                         Z_Free(a->value);
2369                                 Z_Free(a);
2370                         }
2371                 }
2372         }
2373         Cvar_RestoreInitState(&cvars_all);
2374 }