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_server;
  27 cmd_state_t cmd_serverfromclient;
  28
  29 cmd_userdefined_t cmd_userdefined_all;
  30 cmd_userdefined_t cmd_userdefined_null;
  31
  32 typedef struct cmd_iter_s {
  33         cmd_state_t *cmd;
  34 }
  35 cmd_iter_t;
  36
  37 static cmd_iter_t cmd_iter_all[] = {
  38         {&cmd_client},
  39         {&cmd_server},
  40         {&cmd_serverfromclient},
  41         {NULL},
  42 };
  43
  44 mempool_t *cbuf_mempool;
  45
  46 // we only run the +whatever commandline arguments once
  47 qbool host_stuffcmdsrun = false;
  48
  49 //=============================================================================
  50
  51 void Cbuf_Lock(cmd_buf_t *cbuf)
  52 {
  53         Thread_LockMutex(cbuf->lock);
  54 }
  55
  56 void Cbuf_Unlock(cmd_buf_t *cbuf)
  57 {
  58         Thread_UnlockMutex(cbuf->lock);
  59 }
  60
  61
  62 /*
  63 ============
  64 Cmd_Wait_f
  65
  66 Causes execution of the remainder of the command buffer to be delayed until
  67 next frame.  This allows commands like:
  68 bind g "impulse 5 ; +attack ; wait ; -attack ; impulse 2"
  69 ============
  70 */
  71 static void Cmd_Wait_f (cmd_state_t *cmd)
  72 {
  73         cmd->cbuf->wait = true;
  74 }
  75
  76 /*
  77 ============
  78 Cmd_Defer_f
  79
  80 Cause a command to be executed after a delay.
  81 ============
  82 */
  83 static cmd_input_t *Cbuf_LinkGet(cmd_buf_t *cbuf, cmd_input_t *existing);
  84 static void Cmd_Defer_f (cmd_state_t *cmd)
  85 {
  86         cmd_input_t *current;
  87         cmd_buf_t *cbuf = cmd->cbuf;
  88
  89         if(Cmd_Argc(cmd) == 1)
  90         {
  91                 if(List_IsEmpty(&cbuf->deferred))
  92                         Con_Printf("No commands are pending.\n");
  93                 else
  94                 {
  95                         llist_t *pos;
  96                 List_ForEach(pos, &cbuf->deferred)
  97                 {
  98                                 current = List_Container(*pos, cmd_input_t, list);
  99                                 Con_Printf("-> In %9.2f: %s\n", current->delay, current->text);
 100                         }
 101                 }
 102         }
 103         else if(Cmd_Argc(cmd) == 2 && !strcasecmp("clear", Cmd_Argv(cmd, 1)))
 104         {
 105                 while(!List_IsEmpty(&cbuf->deferred))
 106                         List_Move_Tail(cbuf->deferred.next, &cbuf->free);
 107         }
 108         else if(Cmd_Argc(cmd) == 3)
 109         {
 110                 const char *text = Cmd_Argv(cmd, 2);
 111                 current = Cbuf_LinkGet(cbuf, NULL);
 112                 current->size = strlen(text);
 113                 current->source = cmd;
 114                 current->delay = atof(Cmd_Argv(cmd, 1));
 115
 116                 memcpy(current->text, text, current->size + 1);
 117
 118                 List_Move_Tail(&current->list, &cbuf->deferred);
 119
 120         }
 121         else
 122         {
 123                 Con_Printf("usage: defer <seconds> <command>\n"
 124                            "       defer clear\n");
 125                 return;
 126         }
 127 }
 128
 129 /*
 130 ============
 131 Cmd_Centerprint_f
 132
 133 Print something to the center of the screen using SCR_Centerprint
 134 ============
 135 */
 136 static void Cmd_Centerprint_f (cmd_state_t *cmd)
 137 {
 138         char msg[MAX_INPUTLINE];
 139         unsigned int i, c, p;
 140         c = Cmd_Argc(cmd);
 141         if(c >= 2)
 142         {
 143                 strlcpy(msg, Cmd_Argv(cmd,1), sizeof(msg));
 144                 for(i = 2; i < c; ++i)
 145                 {
 146                         strlcat(msg, " ", sizeof(msg));
 147                         strlcat(msg, Cmd_Argv(cmd, i), sizeof(msg));
 148                 }
 149                 c = (unsigned int)strlen(msg);
 150                 for(p = 0, i = 0; i < c; ++i)
 151                 {
 152                         if(msg[i] == '\\')
 153                         {
 154                                 if(msg[i+1] == 'n')
 155                                         msg[p++] = '\n';
 156                                 else if(msg[i+1] == '\\')
 157                                         msg[p++] = '\\';
 158                                 else {
 159                                         msg[p++] = '\\';
 160                                         msg[p++] = msg[i+1];
 161                                 }
 162                                 ++i;
 163                         } else {
 164                                 msg[p++] = msg[i];
 165                         }
 166                 }
 167                 msg[p] = '\0';
 168                 SCR_CenterPrint(msg);
 169         }
 170 }
 171
 172 /*
 173 =============================================================================
 174
 175                                                 COMMAND BUFFER
 176
 177 =============================================================================
 178 */
 179
 180 static cmd_input_t *Cbuf_LinkGet(cmd_buf_t *cbuf, cmd_input_t *existing)
 181 {
 182         cmd_input_t *ret = NULL;
 183         if(existing && existing->pending)
 184                 ret = existing;
 185         else if(!List_IsEmpty(&cbuf->free))
 186         {
 187                 ret = List_Container(*cbuf->free.next, cmd_input_t, list);
 188                 ret->length = 0;
 189                 ret->pending = false;
 190         }
 191         return ret;
 192 }
 193
 194 static cmd_input_t *Cmd_AllocInputNode(void)
 195 {
 196         cmd_input_t *node = (cmd_input_t *)Mem_Alloc(cbuf_mempool, sizeof(cmd_input_t));
 197         node->list.prev = node->list.next = &node->list;
 198         node->size = node->length = node->pending = 0;
 199         return node;
 200 }
 201
 202 static size_t Cmd_ParseInput (cmd_input_t **output, char **input)
 203 {
 204         size_t pos, cmdsize = 0, start = 0;
 205         qbool command = false, lookahead = false;
 206         qbool quotes = false, comment = false;
 207         qbool escaped = false;
 208
 209         /*
 210          * The Quake command-line is super basic. It can be entered in the console
 211          * or in config files. A semicolon is used to terminate a command and chain
 212          * them together. Otherwise, a newline delineates command input.
 213          *
 214          * In most engines, the Quake command-line is a simple linear text buffer that
 215          * is parsed when it executes. In Darkplaces, we use a linked list of command
 216          * input and parse the input on the spot.
 217          *
 218          * This was done because Darkplaces allows multiple command interpreters on the
 219          * same thread. Previously, each interpreter maintained its own buffer and this
 220          * caused problems related to execution order, and maintaining a single simple
 221          * buffer for all interpreters makes it non-trivial to keep track of which
 222          * command should execute on which interpreter.
 223          */
 224
 225         // Run until command and lookahead are both true, or until we run out of input.
 226         for (pos = 0; (*input)[pos]; pos++)
 227         {
 228                 // Look for newlines and semicolons. Ignore semicolons in quotes.
 229                 switch((*input)[pos])
 230                 {
 231                 case '\r':
 232                 case '\n':
 233                         command = false;
 234                         comment = false;
 235                         break;
 236                 default:
 237                         if(!comment) // Not a newline so far. Still not a valid command yet.
 238                         {
 239                                 if(!quotes && (*input)[pos] == ';') // Ignore semicolons in quotes.
 240                                         command = false;
 241                                 else if (ISCOMMENT((*input), pos)) // Comments
 242                                 {
 243                                         comment = true;
 244                                         command = false;
 245                                 }
 246                                 else
 247                                 {
 248                                         command = true;
 249                                         if(!lookahead)
 250                                         {
 251                                                 if(!cmdsize)
 252                                                         start = pos;
 253                                                 cmdsize++;
 254                                         }
 255
 256                                         switch((*input)[pos])
 257                                         {
 258                                         case '"':
 259                                                 if (!escaped)
 260                                                         quotes = !quotes;
 261                                                 else
 262                                                         escaped = false;
 263                                                 break;
 264                                         case '\\':
 265                                                 if (!escaped && quotes)
 266                                                         escaped = true;
 267                                                 else if (escaped)
 268                                                         escaped = false;
 269                                                 break;
 270                                         }
 271                                 }
 272                         }
 273                 }
 274                 if(cmdsize && !command)
 275                         lookahead = true;
 276
 277                 if(command && lookahead)
 278                         break;
 279         }
 280
 281         if(cmdsize)
 282         {
 283                 size_t offset = 0;
 284
 285                 if(!*output)
 286                         *output = Cmd_AllocInputNode();
 287
 288                 if((*output)->pending)
 289                         offset = (*output)->length;
 290
 291                 (*output)->length += cmdsize;
 292
 293                 if((*output)->size < (*output)->length)
 294                 {
 295                         (*output)->text = (char *)Mem_Realloc(cbuf_mempool, (*output)->text, (*output)->length + 1);
 296                         (*output)->size = (*output)->length;
 297                 }
 298
 299                 strlcpy(&(*output)->text[offset], &(*input)[start], cmdsize + 1);
 300                 (*output)->pending = !lookahead;
 301         }
 302
 303         // Set input to its new position. Can be NULL.
 304         *input = &(*input)[pos];
 305
 306         return cmdsize;
 307 }
 308
 309 // Cloudwalk: Not happy with this, but it works.
 310 static void Cbuf_LinkCreate(cmd_state_t *cmd, llist_t *head, cmd_input_t *existing, const char *text)
 311 {
 312         char *in = (char *)&text[0];
 313         cmd_buf_t *cbuf = cmd->cbuf;
 314         size_t totalsize = 0, newsize = 0;
 315         cmd_input_t *current = NULL;
 316
 317         // Slide the pointer down until we reach the end
 318         while(*in)
 319         {
 320                 current = Cbuf_LinkGet(cbuf, existing);
 321                 newsize = Cmd_ParseInput(&current, &in);
 322
 323                 // Valid command
 324                 if(newsize)
 325                 {
 326                         if(current != existing)
 327                         {
 328                                 current->source = cmd;
 329                                 List_Move_Tail(&current->list, head);
 330                         }
 331
 332                         totalsize += newsize;
 333                 }
 334                 else if (current == existing && !totalsize)
 335                         current->pending = false;
 336                 current = NULL;
 337         }
 338
 339         cbuf->size += totalsize;
 340 }
 341
 342 /*
 343 ============
 344 Cbuf_AddText
 345
 346 Adds command text at the end of the buffer
 347 ============
 348 */
 349 void Cbuf_AddText (cmd_state_t *cmd, const char *text)
 350 {
 351         size_t l = strlen(text);
 352         cmd_buf_t *cbuf = cmd->cbuf;
 353         llist_t llist = {&llist, &llist};
 354
 355         Cbuf_Lock(cbuf);
 356
 357         if (cbuf->maxsize - cbuf->size <= l)
 358                 Con_Print("Cbuf_AddText: overflow\n");
 359         else
 360         {
 361                 Cbuf_LinkCreate(cmd, &llist, (List_IsEmpty(&cbuf->start) ? NULL : List_Container(*cbuf->start.prev, cmd_input_t, list)), text);
 362                 if(!List_IsEmpty(&llist))
 363                         List_Splice_Tail(&llist, &cbuf->start);
 364         }
 365         Cbuf_Unlock(cbuf);
 366 }
 367
 368 /*
 369 ============
 370 Cbuf_InsertText
 371
 372 Adds command text immediately after the current command
 373 FIXME: actually change the command buffer to do less copying
 374 ============
 375 */
 376 void Cbuf_InsertText (cmd_state_t *cmd, const char *text)
 377 {
 378         cmd_buf_t *cbuf = cmd->cbuf;
 379         llist_t llist = {&llist, &llist};
 380         size_t l = strlen(text);
 381
 382         Cbuf_Lock(cbuf);
 383
 384         // we need to memmove the existing text and stuff this in before it...
 385         if (cbuf->size + l >= (size_t)cbuf->maxsize)
 386                 Con_Print("Cbuf_InsertText: overflow\n");
 387         else
 388         {
 389                 Cbuf_LinkCreate(cmd, &llist, List_Container(*cbuf->start.next, cmd_input_t, list), text);
 390                 if(!List_IsEmpty(&llist))
 391                         List_Splice(&llist, &cbuf->start);
 392         }
 393
 394         Cbuf_Unlock(cbuf);
 395 }
 396
 397 /*
 398 ============
 399 Cbuf_Execute_Deferred --blub
 400 ============
 401 */
 402 static void Cbuf_Execute_Deferred (cmd_buf_t *cbuf)
 403 {
 404         llist_t *pos;
 405         cmd_input_t *current;
 406         double eat;
 407
 408         if (host.realtime - cbuf->deferred_oldtime < 0 || host.realtime - cbuf->deferred_oldtime > 1800)
 409                 cbuf->deferred_oldtime = host.realtime;
 410         eat = host.realtime - cbuf->deferred_oldtime;
 411         if (eat < (1.0 / 120.0))
 412                 return;
 413         cbuf->deferred_oldtime = host.realtime;
 414
 415     List_ForEach(pos, &cbuf->deferred)
 416         {
 417                 current = List_Container(*pos, cmd_input_t, list);
 418                 current->delay -= eat;
 419                 if(current->delay <= 0)
 420                 {
 421                         cbuf->size += current->size;
 422                         List_Move(pos, &cbuf->start);
 423                         // We must return and come back next frame or the engine will freeze. Fragile... like glass :3
 424                         return;
 425                 }
 426         }
 427 }
 428
 429 /*
 430 ============
 431 Cbuf_Execute
 432 ============
 433 */
 434 static qbool Cmd_PreprocessString(cmd_state_t *cmd, const char *intext, char *outtext, unsigned maxoutlen, cmd_alias_t *alias );
 435 void Cbuf_Execute (cmd_buf_t *cbuf)
 436 {
 437         cmd_input_t *current;
 438         char preprocessed[MAX_INPUTLINE];
 439         char *firstchar;
 440
 441         // LadyHavoc: making sure the tokenizebuffer doesn't get filled up by repeated crashes
 442         cbuf->tokenizebufferpos = 0;
 443
 444         while (!List_IsEmpty(&cbuf->start))
 445         {
 446                 /*
 447                  * Delete the text from the command buffer and move remaining
 448                  * commands down. This is necessary because commands (exec, alias)
 449                  * can insert data at the beginning of the text buffer
 450                  */
 451                 current = List_Container(*cbuf->start.next, cmd_input_t, list);
 452
 453                 // Recycle memory so using WASD doesn't cause a malloc and free
 454                 List_Move_Tail(&current->list, &cbuf->free);
 455
 456                 /*
 457                  * Assume we're rolling with the current command-line and
 458                  * always set this false because alias expansion or cbuf insertion
 459                  * without a newline may set this true, and cause weirdness.
 460                  */
 461                 current->pending = false;
 462
 463                 cbuf->size -= current->length;
 464
 465                 firstchar = current->text;
 466                 while(*firstchar && ISWHITESPACE(*firstchar))
 467                         ++firstchar;
 468                 if((strncmp(firstchar, "alias", 5)   || !ISWHITESPACE(firstchar[5])) &&
 469                    (strncmp(firstchar, "bind", 4)    || !ISWHITESPACE(firstchar[4])) &&
 470                    (strncmp(firstchar, "in_bind", 7) || !ISWHITESPACE(firstchar[7])))
 471                 {
 472                         if(Cmd_PreprocessString(current->source, current->text, preprocessed, sizeof(preprocessed), NULL ))
 473                                 Cmd_ExecuteString(current->source, preprocessed, src_local, false);
 474                 }
 475                 else
 476                 {
 477                         Cmd_ExecuteString (current->source, current->text, src_local, false);
 478                 }
 479
 480                 current = NULL;
 481
 482                 if (cbuf->wait)
 483                 {
 484                         /*
 485                          * Skip out while text still remains in
 486                          * buffer, leaving it for next frame
 487                          */
 488                         cbuf->wait = false;
 489                         break;
 490                 }
 491         }
 492 }
 493
 494 void Cbuf_Frame(cmd_buf_t *cbuf)
 495 {
 496         Cbuf_Execute_Deferred(cbuf);
 497         if (cbuf->size)
 498         {
 499                 SV_LockThreadMutex();
 500                 Cbuf_Execute(cbuf);
 501                 SV_UnlockThreadMutex();
 502         }
 503 }
 504
 505 /*
 506 ==============================================================================
 507
 508                                                 SCRIPT COMMANDS
 509
 510 ==============================================================================
 511 */
 512
 513 /*
 514 ===============
 515 Cmd_StuffCmds_f
 516
 517 Adds command line parameters as script statements
 518 Commands lead with a +, and continue until a - or another +
 519 quake +prog jctest.qp +cmd amlev1
 520 quake -nosound +cmd amlev1
 521 ===============
 522 */
 523 static void Cmd_StuffCmds_f (cmd_state_t *cmd)
 524 {
 525         int             i, j, l;
 526         // this is for all commandline options combined (and is bounds checked)
 527         char    build[MAX_INPUTLINE];
 528
 529         if (Cmd_Argc (cmd) != 1)
 530         {
 531                 Con_Print("stuffcmds : execute command line parameters\n");
 532                 return;
 533         }
 534
 535         // no reason to run the commandline arguments twice
 536         if (host_stuffcmdsrun)
 537                 return;
 538
 539         host_stuffcmdsrun = true;
 540         build[0] = 0;
 541         l = 0;
 542         for (i = 0;i < sys.argc;i++)
 543         {
 544                 if (sys.argv[i] && sys.argv[i][0] == '+' && (sys.argv[i][1] < '0' || sys.argv[i][1] > '9') && l + strlen(sys.argv[i]) - 1 <= sizeof(build) - 1)
 545                 {
 546                         j = 1;
 547                         while (sys.argv[i][j])
 548                                 build[l++] = sys.argv[i][j++];
 549                         i++;
 550                         for (;i < sys.argc;i++)
 551                         {
 552                                 if (!sys.argv[i])
 553                                         continue;
 554                                 if ((sys.argv[i][0] == '+' || sys.argv[i][0] == '-') && (sys.argv[i][1] < '0' || sys.argv[i][1] > '9'))
 555                                         break;
 556                                 if (l + strlen(sys.argv[i]) + 4 > sizeof(build) - 1)
 557                                         break;
 558                                 build[l++] = ' ';
 559                                 if (strchr(sys.argv[i], ' '))
 560                                         build[l++] = '\"';
 561                                 for (j = 0;sys.argv[i][j];j++)
 562                                         build[l++] = sys.argv[i][j];
 563                                 if (strchr(sys.argv[i], ' '))
 564                                         build[l++] = '\"';
 565                         }
 566                         build[l++] = '\n';
 567                         i--;
 568                 }
 569         }
 570         // now terminate the combined string and prepend it to the command buffer
 571         // we already reserved space for the terminator
 572         build[l++] = 0;
 573         Cbuf_InsertText (cmd, build);
 574 }
 575
 576 static void Cmd_Exec(cmd_state_t *cmd, const char *filename)
 577 {
 578         char *f;
 579         size_t filenameLen = strlen(filename);
 580         qbool isdefaultcfg =
 581                 !strcmp(filename, "default.cfg") ||
 582                 (filenameLen >= 12 && !strcmp(filename + filenameLen - 12, "/default.cfg"));
 583
 584         if (!strcmp(filename, "config.cfg"))
 585         {
 586                 filename = CONFIGFILENAME;
 587                 if (Sys_CheckParm("-noconfig"))
 588                         return; // don't execute config.cfg
 589         }
 590
 591         f = (char *)FS_LoadFile (filename, tempmempool, false, NULL);
 592         if (!f)
 593         {
 594                 Con_Printf("couldn't exec %s\n",filename);
 595                 return;
 596         }
 597         Con_Printf("execing %s\n",filename);
 598
 599         // if executing default.cfg for the first time, lock the cvar defaults
 600         // it may seem backwards to insert this text BEFORE the default.cfg
 601         // but Cbuf_InsertText inserts before, so this actually ends up after it.
 602         if (isdefaultcfg)
 603                 Cbuf_InsertText(cmd, "\ncvar_lockdefaults\n");
 604
 605         Cbuf_InsertText (cmd, f);
 606         Mem_Free(f);
 607
 608         if (isdefaultcfg)
 609         {
 610                 // special defaults for specific games go here, these execute before default.cfg
 611                 // Nehahra pushable crates malfunction in some levels if this is on
 612                 // Nehahra NPC AI is confused by blowupfallenzombies
 613                 switch(gamemode)
 614                 {
 615                 case GAME_NORMAL:
 616                         Cbuf_InsertText(cmd, "\n"
 617 "sv_gameplayfix_blowupfallenzombies 0\n"
 618 "sv_gameplayfix_findradiusdistancetobox 0\n"
 619 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 620 "sv_gameplayfix_slidemoveprojectiles 0\n"
 621 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 622 "sv_gameplayfix_setmodelrealbox 0\n"
 623 "sv_gameplayfix_droptofloorstartsolid 0\n"
 624 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 625 "sv_gameplayfix_noairborncorpse 0\n"
 626 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 627 "sv_gameplayfix_easierwaterjump 0\n"
 628 "sv_gameplayfix_delayprojectiles 0\n"
 629 "sv_gameplayfix_multiplethinksperframe 0\n"
 630 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 631 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 632 "sv_gameplayfix_swiminbmodels 0\n"
 633 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 634 "sys_ticrate 0.01388889\n"
 635 "r_shadow_gloss 1\n"
 636 "r_shadow_bumpscale_basetexture 0\n"
 637 "csqc_polygons_defaultmaterial_nocullface 0\n"
 638                                 );
 639                         break;
 640                 case GAME_NEHAHRA:
 641                         Cbuf_InsertText(cmd, "\n"
 642 "sv_gameplayfix_blowupfallenzombies 0\n"
 643 "sv_gameplayfix_findradiusdistancetobox 0\n"
 644 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 645 "sv_gameplayfix_slidemoveprojectiles 0\n"
 646 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 647 "sv_gameplayfix_setmodelrealbox 0\n"
 648 "sv_gameplayfix_droptofloorstartsolid 0\n"
 649 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 650 "sv_gameplayfix_noairborncorpse 0\n"
 651 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 652 "sv_gameplayfix_easierwaterjump 0\n"
 653 "sv_gameplayfix_delayprojectiles 0\n"
 654 "sv_gameplayfix_multiplethinksperframe 0\n"
 655 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 656 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 657 "sv_gameplayfix_swiminbmodels 0\n"
 658 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 659 "sys_ticrate 0.01388889\n"
 660 "r_shadow_gloss 1\n"
 661 "r_shadow_bumpscale_basetexture 0\n"
 662 "csqc_polygons_defaultmaterial_nocullface 0\n"
 663                                 );
 664                         break;
 665                 // 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.
 666                 // 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
 667                 // hipnotic mission pack has issues in their proximity mine sticking code, which causes them to bounce off.
 668                 case GAME_HIPNOTIC:
 669                 case GAME_QUOTH:
 670                         Cbuf_InsertText(cmd, "\n"
 671 "sv_gameplayfix_blowupfallenzombies 0\n"
 672 "sv_gameplayfix_findradiusdistancetobox 0\n"
 673 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 674 "sv_gameplayfix_slidemoveprojectiles 0\n"
 675 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 676 "sv_gameplayfix_setmodelrealbox 0\n"
 677 "sv_gameplayfix_droptofloorstartsolid 0\n"
 678 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 679 "sv_gameplayfix_noairborncorpse 0\n"
 680 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 681 "sv_gameplayfix_easierwaterjump 0\n"
 682 "sv_gameplayfix_delayprojectiles 0\n"
 683 "sv_gameplayfix_multiplethinksperframe 0\n"
 684 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 685 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 686 "sv_gameplayfix_swiminbmodels 0\n"
 687 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 688 "sys_ticrate 0.02\n"
 689 "r_shadow_gloss 1\n"
 690 "r_shadow_bumpscale_basetexture 0\n"
 691 "csqc_polygons_defaultmaterial_nocullface 0\n"
 692                                 );
 693                         break;
 694                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
 695                 case GAME_ROGUE:
 696                         Cbuf_InsertText(cmd, "\n"
 697 "sv_gameplayfix_blowupfallenzombies 0\n"
 698 "sv_gameplayfix_findradiusdistancetobox 0\n"
 699 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 700 "sv_gameplayfix_slidemoveprojectiles 0\n"
 701 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 702 "sv_gameplayfix_setmodelrealbox 0\n"
 703 "sv_gameplayfix_droptofloorstartsolid 0\n"
 704 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 705 "sv_gameplayfix_noairborncorpse 0\n"
 706 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 707 "sv_gameplayfix_easierwaterjump 0\n"
 708 "sv_gameplayfix_delayprojectiles 0\n"
 709 "sv_gameplayfix_multiplethinksperframe 0\n"
 710 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 711 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 712 "sv_gameplayfix_swiminbmodels 0\n"
 713 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 714 "sys_ticrate 0.01388889\n"
 715 "r_shadow_gloss 1\n"
 716 "r_shadow_bumpscale_basetexture 0\n"
 717 "csqc_polygons_defaultmaterial_nocullface 0\n"
 718                                 );
 719                         break;
 720                 case GAME_TENEBRAE:
 721                         Cbuf_InsertText(cmd, "\n"
 722 "sv_gameplayfix_blowupfallenzombies 0\n"
 723 "sv_gameplayfix_findradiusdistancetobox 0\n"
 724 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 725 "sv_gameplayfix_slidemoveprojectiles 0\n"
 726 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 727 "sv_gameplayfix_setmodelrealbox 0\n"
 728 "sv_gameplayfix_droptofloorstartsolid 0\n"
 729 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 730 "sv_gameplayfix_noairborncorpse 0\n"
 731 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 732 "sv_gameplayfix_easierwaterjump 0\n"
 733 "sv_gameplayfix_delayprojectiles 0\n"
 734 "sv_gameplayfix_multiplethinksperframe 0\n"
 735 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 736 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 737 "sv_gameplayfix_swiminbmodels 0\n"
 738 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 739 "sys_ticrate 0.01388889\n"
 740 "r_shadow_gloss 2\n"
 741 "r_shadow_bumpscale_basetexture 4\n"
 742 "csqc_polygons_defaultmaterial_nocullface 0\n"
 743                                 );
 744                         break;
 745                 case GAME_NEXUIZ:
 746                         Cbuf_InsertText(cmd, "\n"
 747 "sv_gameplayfix_blowupfallenzombies 1\n"
 748 "sv_gameplayfix_findradiusdistancetobox 1\n"
 749 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 750 "sv_gameplayfix_slidemoveprojectiles 1\n"
 751 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 752 "sv_gameplayfix_setmodelrealbox 1\n"
 753 "sv_gameplayfix_droptofloorstartsolid 1\n"
 754 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 755 "sv_gameplayfix_noairborncorpse 1\n"
 756 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 757 "sv_gameplayfix_easierwaterjump 1\n"
 758 "sv_gameplayfix_delayprojectiles 1\n"
 759 "sv_gameplayfix_multiplethinksperframe 1\n"
 760 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 761 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 762 "sv_gameplayfix_swiminbmodels 1\n"
 763 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 764 "sys_ticrate 0.01388889\n"
 765 "sv_gameplayfix_q2airaccelerate 1\n"
 766 "sv_gameplayfix_stepmultipletimes 1\n"
 767 "csqc_polygons_defaultmaterial_nocullface 1\n"
 768 "con_chatsound_team_mask 13\n"
 769                                 );
 770                         break;
 771                 case GAME_XONOTIC:
 772                 case GAME_VORETOURNAMENT:
 773                         // 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
 774                         Cbuf_InsertText(cmd, "\n"
 775 "csqc_polygons_defaultmaterial_nocullface 1\n"
 776 "con_chatsound_team_mask 13\n"
 777 "sv_gameplayfix_customstats 1\n"
 778                                 );
 779                         break;
 780                 // Steel Storm: Burning Retribution csqc misinterprets CSQC_InputEvent if type is a value other than 0 or 1
 781                 case GAME_STEELSTORM:
 782                         Cbuf_InsertText(cmd, "\n"
 783 "sv_gameplayfix_blowupfallenzombies 1\n"
 784 "sv_gameplayfix_findradiusdistancetobox 1\n"
 785 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 786 "sv_gameplayfix_slidemoveprojectiles 1\n"
 787 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 788 "sv_gameplayfix_setmodelrealbox 1\n"
 789 "sv_gameplayfix_droptofloorstartsolid 1\n"
 790 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 791 "sv_gameplayfix_noairborncorpse 1\n"
 792 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 793 "sv_gameplayfix_easierwaterjump 1\n"
 794 "sv_gameplayfix_delayprojectiles 1\n"
 795 "sv_gameplayfix_multiplethinksperframe 1\n"
 796 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 797 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 798 "sv_gameplayfix_swiminbmodels 1\n"
 799 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 800 "sys_ticrate 0.01388889\n"
 801 "cl_csqc_generatemousemoveevents 0\n"
 802 "csqc_polygons_defaultmaterial_nocullface 1\n"
 803                                 );
 804                         break;
 805                 default:
 806                         Cbuf_InsertText(cmd, "\n"
 807 "sv_gameplayfix_blowupfallenzombies 1\n"
 808 "sv_gameplayfix_findradiusdistancetobox 1\n"
 809 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 810 "sv_gameplayfix_slidemoveprojectiles 1\n"
 811 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 812 "sv_gameplayfix_setmodelrealbox 1\n"
 813 "sv_gameplayfix_droptofloorstartsolid 1\n"
 814 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 815 "sv_gameplayfix_noairborncorpse 1\n"
 816 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 817 "sv_gameplayfix_easierwaterjump 1\n"
 818 "sv_gameplayfix_delayprojectiles 1\n"
 819 "sv_gameplayfix_multiplethinksperframe 1\n"
 820 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 821 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 822 "sv_gameplayfix_swiminbmodels 1\n"
 823 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 824 "sys_ticrate 0.01388889\n"
 825 "csqc_polygons_defaultmaterial_nocullface 0\n"
 826                                 );
 827                         break;
 828                 }
 829         }
 830 }
 831
 832 /*
 833 ===============
 834 Cmd_Exec_f
 835 ===============
 836 */
 837 static void Cmd_Exec_f (cmd_state_t *cmd)
 838 {
 839         fssearch_t *s;
 840         int i;
 841
 842         if (Cmd_Argc(cmd) != 2)
 843         {
 844                 Con_Print("exec <filename> : execute a script file\n");
 845                 return;
 846         }
 847
 848         s = FS_Search(Cmd_Argv(cmd, 1), true, true, NULL);
 849         if(!s || !s->numfilenames)
 850         {
 851                 Con_Printf("couldn't exec %s\n",Cmd_Argv(cmd, 1));
 852                 return;
 853         }
 854
 855         for(i = 0; i < s->numfilenames; ++i)
 856                 Cmd_Exec(cmd, s->filenames[i]);
 857
 858         FS_FreeSearch(s);
 859 }
 860
 861
 862 /*
 863 ===============
 864 Cmd_Echo_f
 865
 866 Just prints the rest of the line to the console
 867 ===============
 868 */
 869 static void Cmd_Echo_f (cmd_state_t *cmd)
 870 {
 871         int             i;
 872
 873         for (i=1 ; i<Cmd_Argc(cmd) ; i++)
 874                 Con_Printf("%s ",Cmd_Argv(cmd, i));
 875         Con_Print("\n");
 876 }
 877
 878 // DRESK - 5/14/06
 879 // Support Doom3-style Toggle Console Command
 880 /*
 881 ===============
 882 Cmd_Toggle_f
 883
 884 Toggles a specified console variable amongst the values specified (default is 0 and 1)
 885 ===============
 886 */
 887 static void Cmd_Toggle_f(cmd_state_t *cmd)
 888 {
 889         // Acquire Number of Arguments
 890         int nNumArgs = Cmd_Argc(cmd);
 891
 892         if(nNumArgs == 1)
 893                 // No Arguments Specified; Print Usage
 894                 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");
 895         else
 896         { // Correct Arguments Specified
 897                 // Acquire Potential CVar
 898                 cvar_t* cvCVar = Cvar_FindVar(cmd->cvars, Cmd_Argv(cmd, 1), cmd->cvars_flagsmask);
 899
 900                 if(cvCVar != NULL)
 901                 { // Valid CVar
 902                         if(nNumArgs == 2)
 903                         { // Default Usage
 904                                 if(cvCVar->integer)
 905                                         Cvar_SetValueQuick(cvCVar, 0);
 906                                 else
 907                                         Cvar_SetValueQuick(cvCVar, 1);
 908                         }
 909                         else
 910                         if(nNumArgs == 3)
 911                         { // 0 and Specified Usage
 912                                 if(cvCVar->integer == atoi(Cmd_Argv(cmd, 2) ) )
 913                                         // CVar is Specified Value; // Reset to 0
 914                                         Cvar_SetValueQuick(cvCVar, 0);
 915                                 else
 916                                 if(cvCVar->integer == 0)
 917                                         // CVar is 0; Specify Value
 918                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 919                                 else
 920                                         // CVar does not match; Reset to 0
 921                                         Cvar_SetValueQuick(cvCVar, 0);
 922                         }
 923                         else
 924                         { // Variable Values Specified
 925                                 int nCnt;
 926                                 int bFound = 0;
 927
 928                                 for(nCnt = 2; nCnt < nNumArgs; nCnt++)
 929                                 { // Cycle through Values
 930                                         if( strcmp(cvCVar->string, Cmd_Argv(cmd, nCnt) ) == 0)
 931                                         { // Current Value Located; Increment to Next
 932                                                 if( (nCnt + 1) == nNumArgs)
 933                                                         // Max Value Reached; Reset
 934                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 935                                                 else
 936                                                         // Next Value
 937                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, nCnt + 1) );
 938
 939                                                 // End Loop
 940                                                 nCnt = nNumArgs;
 941                                                 // Assign Found
 942                                                 bFound = 1;
 943                                         }
 944                                 }
 945                                 if(!bFound)
 946                                         // Value not Found; Reset to Original
 947                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 948                         }
 949
 950                 }
 951                 else
 952                 { // Invalid CVar
 953                         Con_Printf("ERROR : CVar '%s' not found\n", Cmd_Argv(cmd, 1) );
 954                 }
 955         }
 956 }
 957
 958 /*
 959 ===============
 960 Cmd_Alias_f
 961
 962 Creates a new command that executes a command string (possibly ; seperated)
 963 ===============
 964 */
 965 static void Cmd_Alias_f (cmd_state_t *cmd)
 966 {
 967         cmd_alias_t     *a;
 968         char            line[MAX_INPUTLINE];
 969         int                     i, c;
 970         const char              *s;
 971         size_t          alloclen;
 972
 973         if (Cmd_Argc(cmd) == 1)
 974         {
 975                 Con_Print("Current alias commands:\n");
 976                 for (a = cmd->userdefined->alias ; a ; a=a->next)
 977                         Con_Printf("%s : %s", a->name, a->value);
 978                 return;
 979         }
 980
 981         s = Cmd_Argv(cmd, 1);
 982         if (strlen(s) >= MAX_ALIAS_NAME)
 983         {
 984                 Con_Print("Alias name is too long\n");
 985                 return;
 986         }
 987
 988         // if the alias already exists, reuse it
 989         for (a = cmd->userdefined->alias ; a ; a=a->next)
 990         {
 991                 if (!strcmp(s, a->name))
 992                 {
 993                         Z_Free (a->value);
 994                         break;
 995                 }
 996         }
 997
 998         if (!a)
 999         {
1000                 cmd_alias_t *prev, *current;
1001
1002                 a = (cmd_alias_t *)Z_Malloc (sizeof(cmd_alias_t));
1003                 strlcpy (a->name, s, sizeof (a->name));
1004                 // insert it at the right alphanumeric position
1005                 for( prev = NULL, current = cmd->userdefined->alias ; current && strcmp( current->name, a->name ) < 0 ; prev = current, current = current->next )
1006                         ;
1007                 if( prev ) {
1008                         prev->next = a;
1009                 } else {
1010                         cmd->userdefined->alias = a;
1011                 }
1012                 a->next = current;
1013         }
1014
1015
1016 // copy the rest of the command line
1017         line[0] = 0;            // start out with a null string
1018         c = Cmd_Argc(cmd);
1019         for (i=2 ; i < c ; i++)
1020         {
1021                 if (i != 2)
1022                         strlcat (line, " ", sizeof (line));
1023                 strlcat (line, Cmd_Argv(cmd, i), sizeof (line));
1024         }
1025         strlcat (line, "\n", sizeof (line));
1026
1027         alloclen = strlen (line) + 1;
1028         if(alloclen >= 2)
1029                 line[alloclen - 2] = '\n'; // to make sure a newline is appended even if too long
1030         a->value = (char *)Z_Malloc (alloclen);
1031         memcpy (a->value, line, alloclen);
1032 }
1033
1034 /*
1035 ===============
1036 Cmd_UnAlias_f
1037
1038 Remove existing aliases.
1039 ===============
1040 */
1041 static void Cmd_UnAlias_f (cmd_state_t *cmd)
1042 {
1043         cmd_alias_t     *a, *p;
1044         int i;
1045         const char *s;
1046
1047         if(Cmd_Argc(cmd) == 1)
1048         {
1049                 Con_Print("unalias: Usage: unalias alias1 [alias2 ...]\n");
1050                 return;
1051         }
1052
1053         for(i = 1; i < Cmd_Argc(cmd); ++i)
1054         {
1055                 s = Cmd_Argv(cmd, i);
1056                 p = NULL;
1057                 for(a = cmd->userdefined->alias; a; p = a, a = a->next)
1058                 {
1059                         if(!strcmp(s, a->name))
1060                         {
1061                                 if (a->initstate) // we can not remove init aliases
1062                                         continue;
1063                                 if(a == cmd->userdefined->alias)
1064                                         cmd->userdefined->alias = a->next;
1065                                 if(p)
1066                                         p->next = a->next;
1067                                 Z_Free(a->value);
1068                                 Z_Free(a);
1069                                 break;
1070                         }
1071                 }
1072                 if(!a)
1073                         Con_Printf("unalias: %s alias not found\n", s);
1074         }
1075 }
1076
1077 /*
1078 =============================================================================
1079
1080                                         COMMAND EXECUTION
1081
1082 =============================================================================
1083 */
1084
1085 static const char *Cmd_GetDirectCvarValue(cmd_state_t *cmd, const char *varname, cmd_alias_t *alias, qbool *is_multiple)
1086 {
1087         cvar_t *cvar;
1088         long argno;
1089         char *endptr;
1090         static char vabuf[1024]; // cmd_mutex
1091
1092         if(is_multiple)
1093                 *is_multiple = false;
1094
1095         if(!varname || !*varname)
1096                 return NULL;
1097
1098         if(alias)
1099         {
1100                 if(!strcmp(varname, "*"))
1101                 {
1102                         if(is_multiple)
1103                                 *is_multiple = true;
1104                         return Cmd_Args(cmd);
1105                 }
1106                 else if(!strcmp(varname, "#"))
1107                 {
1108                         return va(vabuf, sizeof(vabuf), "%d", Cmd_Argc(cmd));
1109                 }
1110                 else if(varname[strlen(varname) - 1] == '-')
1111                 {
1112                         argno = strtol(varname, &endptr, 10);
1113                         if(endptr == varname + strlen(varname) - 1)
1114                         {
1115                                 // whole string is a number, apart from the -
1116                                 const char *p = Cmd_Args(cmd);
1117                                 for(; argno > 1; --argno)
1118                                         if(!COM_ParseToken_Console(&p))
1119                                                 break;
1120                                 if(p)
1121                                 {
1122                                         if(is_multiple)
1123                                                 *is_multiple = true;
1124
1125                                         // kill pre-argument whitespace
1126                                         for (;*p && ISWHITESPACE(*p);p++)
1127                                                 ;
1128
1129                                         return p;
1130                                 }
1131                         }
1132                 }
1133                 else
1134                 {
1135                         argno = strtol(varname, &endptr, 10);
1136                         if(*endptr == 0)
1137                         {
1138                                 // whole string is a number
1139                                 // NOTE: we already made sure we don't have an empty cvar name!
1140                                 if(argno >= 0 && argno < Cmd_Argc(cmd))
1141                                         return Cmd_Argv(cmd, argno);
1142                         }
1143                 }
1144         }
1145
1146         if((cvar = Cvar_FindVar(cmd->cvars, varname, cmd->cvars_flagsmask)) && !(cvar->flags & CF_PRIVATE))
1147                 return cvar->string;
1148
1149         return NULL;
1150 }
1151
1152 qbool Cmd_QuoteString(char *out, size_t outlen, const char *in, const char *quoteset, qbool putquotes)
1153 {
1154         qbool quote_quot = !!strchr(quoteset, '"');
1155         qbool quote_backslash = !!strchr(quoteset, '\\');
1156         qbool quote_dollar = !!strchr(quoteset, '$');
1157
1158         if(putquotes)
1159         {
1160                 if(outlen <= 2)
1161                 {
1162                         *out++ = 0;
1163                         return false;
1164                 }
1165                 *out++ = '"'; --outlen;
1166                 --outlen;
1167         }
1168
1169         while(*in)
1170         {
1171                 if(*in == '"' && quote_quot)
1172                 {
1173                         if(outlen <= 2)
1174                                 goto fail;
1175                         *out++ = '\\'; --outlen;
1176                         *out++ = '"'; --outlen;
1177                 }
1178                 else if(*in == '\\' && quote_backslash)
1179                 {
1180                         if(outlen <= 2)
1181                                 goto fail;
1182                         *out++ = '\\'; --outlen;
1183                         *out++ = '\\'; --outlen;
1184                 }
1185                 else if(*in == '$' && quote_dollar)
1186                 {
1187                         if(outlen <= 2)
1188                                 goto fail;
1189                         *out++ = '$'; --outlen;
1190                         *out++ = '$'; --outlen;
1191                 }
1192                 else
1193                 {
1194                         if(outlen <= 1)
1195                                 goto fail;
1196                         *out++ = *in; --outlen;
1197                 }
1198                 ++in;
1199         }
1200         if(putquotes)
1201                 *out++ = '"';
1202         *out++ = 0;
1203         return true;
1204 fail:
1205         if(putquotes)
1206                 *out++ = '"';
1207         *out++ = 0;
1208         return false;
1209 }
1210
1211 static const char *Cmd_GetCvarValue(cmd_state_t *cmd, const char *var, size_t varlen, cmd_alias_t *alias)
1212 {
1213         static char varname[MAX_INPUTLINE]; // cmd_mutex
1214         static char varval[MAX_INPUTLINE]; // cmd_mutex
1215         const char *varstr = NULL;
1216         char *varfunc;
1217         qbool required = false;
1218         qbool optional = false;
1219         static char asis[] = "asis"; // just to suppress const char warnings
1220
1221         if(varlen >= MAX_INPUTLINE)
1222                 varlen = MAX_INPUTLINE - 1;
1223         memcpy(varname, var, varlen);
1224         varname[varlen] = 0;
1225         varfunc = strchr(varname, ' ');
1226
1227         if(varfunc)
1228         {
1229                 *varfunc = 0;
1230                 ++varfunc;
1231         }
1232
1233         if(*var == 0)
1234         {
1235                 // empty cvar name?
1236                 if(alias)
1237                         Con_Printf(CON_WARN "Warning: Could not expand $ in alias %s\n", alias->name);
1238                 else
1239                         Con_Printf(CON_WARN "Warning: Could not expand $\n");
1240                 return "$";
1241         }
1242
1243         if(varfunc)
1244         {
1245                 char *p;
1246                 // ? means optional
1247                 while((p = strchr(varfunc, '?')))
1248                 {
1249                         optional = true;
1250                         memmove(p, p+1, strlen(p)); // with final NUL
1251                 }
1252                 // ! means required
1253                 while((p = strchr(varfunc, '!')))
1254                 {
1255                         required = true;
1256                         memmove(p, p+1, strlen(p)); // with final NUL
1257                 }
1258                 // kill spaces
1259                 while((p = strchr(varfunc, ' ')))
1260                 {
1261                         memmove(p, p+1, strlen(p)); // with final NUL
1262                 }
1263                 // if no function is left, NULL it
1264                 if(!*varfunc)
1265                         varfunc = NULL;
1266         }
1267
1268         if(varname[0] == '$')
1269                 varstr = Cmd_GetDirectCvarValue(cmd, Cmd_GetDirectCvarValue(cmd, varname + 1, alias, NULL), alias, NULL);
1270         else
1271         {
1272                 qbool is_multiple = false;
1273                 // Exception: $* and $n- don't use the quoted form by default
1274                 varstr = Cmd_GetDirectCvarValue(cmd, varname, alias, &is_multiple);
1275                 if(is_multiple)
1276                         if(!varfunc)
1277                                 varfunc = asis;
1278         }
1279
1280         if(!varstr)
1281         {
1282                 if(required)
1283                 {
1284                         if(alias)
1285                                 Con_Printf(CON_ERROR "Error: Could not expand $%s in alias %s\n", varname, alias->name);
1286                         else
1287                                 Con_Printf(CON_ERROR "Error: Could not expand $%s\n", varname);
1288                         return NULL;
1289                 }
1290                 else if(optional)
1291                 {
1292                         return "";
1293                 }
1294                 else
1295                 {
1296                         if(alias)
1297                                 Con_Printf(CON_WARN "Warning: Could not expand $%s in alias %s\n", varname, alias->name);
1298                         else
1299                                 Con_Printf(CON_WARN "Warning: Could not expand $%s\n", varname);
1300                         dpsnprintf(varval, sizeof(varval), "$%s", varname);
1301                         return varval;
1302                 }
1303         }
1304
1305         if(!varfunc || !strcmp(varfunc, "q")) // note: quoted form is default, use "asis" to override!
1306         {
1307                 // quote it so it can be used inside double quotes
1308                 // we just need to replace " by \", and of course, double backslashes
1309                 Cmd_QuoteString(varval, sizeof(varval), varstr, "\"\\", false);
1310                 return varval;
1311         }
1312         else if(!strcmp(varfunc, "asis"))
1313         {
1314                 return varstr;
1315         }
1316         else
1317                 Con_Printf("Unknown variable function %s\n", varfunc);
1318
1319         return varstr;
1320 }
1321
1322 /*
1323 Cmd_PreprocessString
1324
1325 Preprocesses strings and replaces $*, $param#, $cvar accordingly. Also strips comments.
1326 */
1327 static qbool Cmd_PreprocessString(cmd_state_t *cmd, const char *intext, char *outtext, unsigned maxoutlen, cmd_alias_t *alias ) {
1328         const char *in;
1329         size_t eat, varlen;
1330         unsigned outlen;
1331         const char *val;
1332
1333         // don't crash if there's no room in the outtext buffer
1334         if( maxoutlen == 0 ) {
1335                 return false;
1336         }
1337         maxoutlen--; // because of \0
1338
1339         in = intext;
1340         outlen = 0;
1341
1342         while( *in && outlen < maxoutlen ) {
1343                 if( *in == '$' ) {
1344                         // this is some kind of expansion, see what comes after the $
1345                         in++;
1346
1347                         // The console does the following preprocessing:
1348                         //
1349                         // - $$ is transformed to a single dollar sign.
1350                         // - $var or ${var} are expanded to the contents of the named cvar,
1351                         //   with quotation marks and backslashes quoted so it can safely
1352                         //   be used inside quotation marks (and it should always be used
1353                         //   that way)
1354                         // - ${var asis} inserts the cvar value as is, without doing this
1355                         //   quoting
1356                         // - ${var ?} silently expands to the empty string if
1357                         //   $var does not exist
1358                         // - ${var !} fails expansion and executes nothing if
1359                         //   $var does not exist
1360                         // - prefix the cvar name with a dollar sign to do indirection;
1361                         //   for example, if $x has the value timelimit, ${$x} will return
1362                         //   the value of $timelimit
1363                         // - when expanding an alias, the special variable name $* refers
1364                         //   to all alias parameters, and a number refers to that numbered
1365                         //   alias parameter, where the name of the alias is $0, the first
1366                         //   parameter is $1 and so on; as a special case, $* inserts all
1367                         //   parameters, without extra quoting, so one can use $* to just
1368                         //   pass all parameters around. All parameters starting from $n
1369                         //   can be referred to as $n- (so $* is equivalent to $1-).
1370                         // - ${* q} and ${n- q} force quoting anyway
1371                         //
1372                         // Note: when expanding an alias, cvar expansion is done in the SAME step
1373                         // as alias expansion so that alias parameters or cvar values containing
1374                         // dollar signs have no unwanted bad side effects. However, this needs to
1375                         // be accounted for when writing complex aliases. For example,
1376                         //   alias foo "set x NEW; echo $x"
1377                         // actually expands to
1378                         //   "set x NEW; echo OLD"
1379                         // and will print OLD! To work around this, use a second alias:
1380                         //   alias foo "set x NEW; foo2"
1381                         //   alias foo2 "echo $x"
1382                         //
1383                         // Also note: lines starting with alias are exempt from cvar expansion.
1384                         // If you want cvar expansion, write "alias" instead:
1385                         //
1386                         //   set x 1
1387                         //   alias foo "echo $x"
1388                         //   "alias" bar "echo $x"
1389                         //   set x 2
1390                         //
1391                         // foo will print 2, because the variable $x will be expanded when the alias
1392                         // gets expanded. bar will print 1, because the variable $x was expanded
1393                         // at definition time. foo can be equivalently defined as
1394                         //
1395                         //   "alias" foo "echo $$x"
1396                         //
1397                         // because at definition time, $$ will get replaced to a single $.
1398
1399                         if( *in == '$' ) {
1400                                 val = "$";
1401                                 eat = 1;
1402                         } else if(*in == '{') {
1403                                 varlen = strcspn(in + 1, "}");
1404                                 if(in[varlen + 1] == '}')
1405                                 {
1406                                         val = Cmd_GetCvarValue(cmd, in + 1, varlen, alias);
1407                                         if(!val)
1408                                                 return false;
1409                                         eat = varlen + 2;
1410                                 }
1411                                 else
1412                                 {
1413                                         // ran out of data?
1414                                         val = NULL;
1415                                         eat = varlen + 1;
1416                                 }
1417                         } else {
1418                                 varlen = strspn(in, "#*0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-");
1419                                 val = Cmd_GetCvarValue(cmd, in, varlen, alias);
1420                                 if(!val)
1421                                         return false;
1422                                 eat = varlen;
1423                         }
1424                         if(val)
1425                         {
1426                                 // insert the cvar value
1427                                 while(*val && outlen < maxoutlen)
1428                                         outtext[outlen++] = *val++;
1429                                 in += eat;
1430                         }
1431                         else
1432                         {
1433                                 // copy the unexpanded text
1434                                 outtext[outlen++] = '$';
1435                                 while(eat && outlen < maxoutlen)
1436                                 {
1437                                         outtext[outlen++] = *in++;
1438                                         --eat;
1439                                 }
1440                         }
1441                 }
1442                 else
1443                         outtext[outlen++] = *in++;
1444         }
1445         outtext[outlen] = 0;
1446         return true;
1447 }
1448
1449 /*
1450 ============
1451 Cmd_ExecuteAlias
1452
1453 Called for aliases and fills in the alias into the cbuffer
1454 ============
1455 */
1456 static void Cmd_ExecuteAlias (cmd_state_t *cmd, cmd_alias_t *alias)
1457 {
1458         static char buffer[ MAX_INPUTLINE ]; // cmd_mutex
1459         static char buffer2[ MAX_INPUTLINE ]; // cmd_mutex
1460         qbool ret = Cmd_PreprocessString( cmd, alias->value, buffer, sizeof(buffer) - 2, alias );
1461         if(!ret)
1462                 return;
1463         // insert at start of command buffer, so that aliases execute in order
1464         // (fixes bug introduced by Black on 20050705)
1465
1466         // Note: Cbuf_PreprocessString will be called on this string AGAIN! So we
1467         // have to make sure that no second variable expansion takes place, otherwise
1468         // alias parameters containing dollar signs can have bad effects.
1469         Cmd_QuoteString(buffer2, sizeof(buffer2), buffer, "$", false);
1470         Cbuf_InsertText(cmd, buffer2);
1471 }
1472
1473 /*
1474 ========
1475 Cmd_List
1476
1477         CmdList Added by EvilTypeGuy eviltypeguy@qeradiant.com
1478         Thanks to Matthias "Maddes" Buecher, http://www.inside3d.com/qip/
1479
1480 ========
1481 */
1482 static void Cmd_List_f (cmd_state_t *cmd)
1483 {
1484         cmd_function_t *func;
1485         const char *partial;
1486         size_t len;
1487         int count;
1488         qbool ispattern;
1489
1490         if (Cmd_Argc(cmd) > 1)
1491         {
1492                 partial = Cmd_Argv(cmd, 1);
1493                 len = strlen(partial);
1494                 ispattern = (strchr(partial, '*') || strchr(partial, '?'));
1495         }
1496         else
1497         {
1498                 partial = NULL;
1499                 len = 0;
1500                 ispattern = false;
1501         }
1502
1503         count = 0;
1504         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1505         {
1506                 if (partial && (ispattern ? !matchpattern_with_separator(func->name, partial, false, "", false) : strncmp(partial, func->name, len)))
1507                         continue;
1508                 Con_Printf("%s : %s\n", func->name, func->description);
1509                 count++;
1510         }
1511         for (func = cmd->engine_functions; func; func = func->next)
1512         {
1513                 if (partial && (ispattern ? !matchpattern_with_separator(func->name, partial, false, "", false) : strncmp(partial, func->name, len)))
1514                         continue;
1515                 Con_Printf("%s : %s\n", func->name, func->description);
1516                 count++;
1517         }
1518
1519         if (len)
1520         {
1521                 if(ispattern)
1522                         Con_Printf("%i Command%s matching \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1523                 else
1524                         Con_Printf("%i Command%s beginning with \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1525         }
1526         else
1527                 Con_Printf("%i Command%s\n\n", count, (count > 1) ? "s" : "");
1528 }
1529
1530 static void Cmd_Apropos_f(cmd_state_t *cmd)
1531 {
1532         cmd_function_t *func;
1533         cvar_t *cvar;
1534         cmd_alias_t *alias;
1535         const char *partial;
1536         int count;
1537         qbool ispattern;
1538         char vabuf[1024];
1539
1540         if (Cmd_Argc(cmd) > 1)
1541                 partial = Cmd_Args(cmd);
1542         else
1543         {
1544                 Con_Printf("usage: %s <string>\n",Cmd_Argv(cmd, 0));
1545                 return;
1546         }
1547
1548         ispattern = partial && (strchr(partial, '*') || strchr(partial, '?'));
1549         if(!ispattern)
1550                 partial = va(vabuf, sizeof(vabuf), "*%s*", partial);
1551
1552         count = 0;
1553         for (cvar = cmd->cvars->vars; cvar; cvar = cvar->next)
1554         {
1555                 if (matchpattern_with_separator(cvar->name, partial, true, "", false) ||
1556                     matchpattern_with_separator(cvar->description, partial, true, "", false))
1557                 {
1558                         Con_Printf ("cvar ");
1559                         Cvar_PrintHelp(cvar, cvar->name, true);
1560                         count++;
1561                 }
1562                 for (int i = 0; i < cvar->aliasindex; i++)
1563                 {
1564                         if (matchpattern_with_separator(cvar->aliases[i], partial, true, "", false))
1565                         {
1566                                 Con_Printf ("cvar ");
1567                                 Cvar_PrintHelp(cvar, cvar->aliases[i], true);
1568                                 count++;
1569                         }
1570                 }
1571         }
1572         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1573         {
1574                 if (!matchpattern_with_separator(func->name, partial, true, "", false))
1575                         if (!matchpattern_with_separator(func->description, partial, true, "", false))
1576                                 continue;
1577                 Con_Printf("command ^2%s^7: %s\n", func->name, func->description);
1578                 count++;
1579         }
1580         for (func = cmd->engine_functions; func; func = func->next)
1581         {
1582                 if (!matchpattern_with_separator(func->name, partial, true, "", false))
1583                 if (!matchpattern_with_separator(func->description, partial, true, "", false))
1584                         continue;
1585                 Con_Printf("command ^2%s^7: %s\n", func->name, func->description);
1586                 count++;
1587         }
1588         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1589         {
1590                 // procede here a bit differently as an alias value always got a final \n
1591                 if (!matchpattern_with_separator(alias->name, partial, true, "", false))
1592                 if (!matchpattern_with_separator(alias->value, partial, true, "\n", false)) // when \n is as separator wildcards don't match it
1593                         continue;
1594                 Con_Printf("alias ^5%s^7: %s", alias->name, alias->value); // do not print an extra \n
1595                 count++;
1596         }
1597         Con_Printf("%i result%s\n\n", count, (count > 1) ? "s" : "");
1598 }
1599
1600 /*
1601 ============
1602 Cmd_Init
1603 ============
1604 */
1605 void Cmd_Init(void)
1606 {
1607         cmd_iter_t *cmd_iter;
1608         cmd_buf_t *cbuf;
1609         cbuf_mempool = Mem_AllocPool("Command buffer", 0, NULL);
1610         cbuf = (cmd_buf_t *)Mem_Alloc(cbuf_mempool, sizeof(cmd_buf_t));
1611         cbuf->maxsize = 655360;
1612         cbuf->lock = Thread_CreateMutex();
1613         cbuf->wait = false;
1614         host.cbuf = cbuf;
1615
1616         cbuf->start.prev = cbuf->start.next = &(cbuf->start);
1617         cbuf->deferred.prev = cbuf->deferred.next = &(cbuf->deferred);
1618         cbuf->free.prev = cbuf->free.next = &(cbuf->free);
1619
1620         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
1621         {
1622                 cmd_state_t *cmd = cmd_iter->cmd;
1623                 cmd->mempool = Mem_AllocPool("commands", 0, NULL);
1624                 // space for commands and script files
1625                 cmd->cbuf = cbuf;
1626                 cmd->null_string = "";
1627         }
1628         // client console can see server cvars because the user may start a server
1629         cmd_client.cvars = &cvars_all;
1630         cmd_client.cvars_flagsmask = CF_CLIENT | CF_SERVER;
1631         cmd_client.cmd_flags = CF_CLIENT | CF_CLIENT_FROM_SERVER;
1632         cmd_client.auto_flags = CF_SERVER_FROM_CLIENT;
1633         cmd_client.auto_function = CL_ForwardToServer_f; // FIXME: Move this to the client.
1634         cmd_client.userdefined = &cmd_userdefined_all;
1635         // dedicated server console can only see server cvars, there is no client
1636         cmd_server.cvars = &cvars_all;
1637         cmd_server.cvars_flagsmask = CF_SERVER;
1638         cmd_server.cmd_flags = CF_SERVER;
1639         cmd_server.auto_flags = 0;
1640         cmd_server.auto_function = NULL;
1641         cmd_server.userdefined = &cmd_userdefined_all;
1642         // server commands received from clients have no reason to access cvars, cvar expansion seems perilous.
1643         cmd_serverfromclient.cvars = &cvars_null;
1644         cmd_serverfromclient.cvars_flagsmask = 0;
1645         cmd_serverfromclient.cmd_flags = CF_SERVER_FROM_CLIENT | CF_USERINFO;
1646         cmd_serverfromclient.auto_flags = 0;
1647         cmd_serverfromclient.auto_function = NULL;
1648         cmd_serverfromclient.userdefined = &cmd_userdefined_null;
1649
1650 //
1651 // register our commands
1652 //
1653         // client-only commands
1654         Cmd_AddCommand(CF_SHARED, "wait", Cmd_Wait_f, "make script execution wait for next rendered frame");
1655         Cmd_AddCommand(CF_CLIENT, "cprint", Cmd_Centerprint_f, "print something at the screen center");
1656
1657         // maintenance commands used for upkeep of cvars and saved configs
1658         Cmd_AddCommand(CF_SHARED, "stuffcmds", Cmd_StuffCmds_f, "execute commandline parameters (must be present in quake.rc script)");
1659         Cmd_AddCommand(CF_SHARED, "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");
1660         Cmd_AddCommand(CF_SHARED, "cvar_resettodefaults_all", Cvar_ResetToDefaults_All_f, "sets all cvars to their locked default values");
1661         Cmd_AddCommand(CF_SHARED, "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)");
1662         Cmd_AddCommand(CF_SHARED, "cvar_resettodefaults_saveonly", Cvar_ResetToDefaults_SaveOnly_f, "sets all saved cvars to their locked default values (variables that will be saved to config.cfg)");
1663
1664         // general console commands used in multiple environments
1665         Cmd_AddCommand(CF_SHARED, "exec", Cmd_Exec_f, "execute a script file");
1666         Cmd_AddCommand(CF_SHARED, "echo",Cmd_Echo_f, "print a message to the console (useful in scripts)");
1667         Cmd_AddCommand(CF_SHARED, "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");
1668         Cmd_AddCommand(CF_SHARED, "unalias",Cmd_UnAlias_f, "remove an alias");
1669         Cmd_AddCommand(CF_SHARED, "set", Cvar_Set_f, "create or change the value of a console variable");
1670         Cmd_AddCommand(CF_SHARED, "seta", Cvar_SetA_f, "create or change the value of a console variable that will be saved to config.cfg");
1671         Cmd_AddCommand(CF_SHARED, "unset", Cvar_Del_f, "delete a cvar (does not work for static ones like _cl_name, or read-only ones)");
1672
1673 #ifdef FILLALLCVARSWITHRUBBISH
1674         Cmd_AddCommand(CF_SHARED, "fillallcvarswithrubbish", Cvar_FillAll_f, "fill all cvars with a specified number of characters to provoke buffer overruns");
1675 #endif /* FILLALLCVARSWITHRUBBISH */
1676
1677         // 2000-01-09 CmdList, CvarList commands By Matthias "Maddes" Buecher
1678         // Added/Modified by EvilTypeGuy eviltypeguy@qeradiant.com
1679         Cmd_AddCommand(CF_SHARED, "cmdlist", Cmd_List_f, "lists all console commands beginning with the specified prefix or matching the specified wildcard pattern");
1680         Cmd_AddCommand(CF_SHARED, "cvarlist", Cvar_List_f, "lists all console variables beginning with the specified prefix or matching the specified wildcard pattern");
1681         Cmd_AddCommand(CF_SHARED, "apropos", Cmd_Apropos_f, "lists all console variables/commands/aliases containing the specified string in the name or description");
1682         Cmd_AddCommand(CF_SHARED, "find", Cmd_Apropos_f, "lists all console variables/commands/aliases containing the specified string in the name or description");
1683
1684         Cmd_AddCommand(CF_SHARED, "defer", Cmd_Defer_f, "execute a command in the future");
1685
1686         // DRESK - 5/14/06
1687         // Support Doom3-style Toggle Command
1688         Cmd_AddCommand(CF_SHARED | CF_CLIENT_FROM_SERVER, "toggle", Cmd_Toggle_f, "toggles a console variable's values (use for more info)");
1689 }
1690
1691 /*
1692 ============
1693 Cmd_Shutdown
1694 ============
1695 */
1696 void Cmd_Shutdown(void)
1697 {
1698         cmd_iter_t *cmd_iter;
1699         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
1700         {
1701                 cmd_state_t *cmd = cmd_iter->cmd;
1702
1703                 if (cmd->cbuf->lock)
1704                 {
1705                         // we usually have this locked when we get here from Host_Quit_f
1706                         Cbuf_Unlock(cmd->cbuf);
1707                 }
1708
1709                 Mem_FreePool(&cmd->mempool);
1710         }
1711 }
1712
1713 /*
1714 ============
1715 Cmd_Argc
1716 ============
1717 */
1718 int             Cmd_Argc (cmd_state_t *cmd)
1719 {
1720         return cmd->argc;
1721 }
1722
1723 /*
1724 ============
1725 Cmd_Argv
1726 ============
1727 */
1728 const char *Cmd_Argv(cmd_state_t *cmd, int arg)
1729 {
1730         if (arg >= cmd->argc )
1731                 return cmd->null_string;
1732         return cmd->argv[arg];
1733 }
1734
1735 /*
1736 ============
1737 Cmd_Args
1738 ============
1739 */
1740 const char *Cmd_Args (cmd_state_t *cmd)
1741 {
1742         return cmd->args;
1743 }
1744
1745 /*
1746 ============
1747 Cmd_TokenizeString
1748
1749 Parses the given string into command line tokens.
1750 ============
1751 */
1752 // AK: This function should only be called from ExcuteString because the current design is a bit of an hack
1753 static void Cmd_TokenizeString (cmd_state_t *cmd, const char *text)
1754 {
1755         int l;
1756
1757         cmd->argc = 0;
1758         cmd->args = NULL;
1759
1760         while (1)
1761         {
1762                 // skip whitespace up to a /n
1763                 while (*text && ISWHITESPACE(*text) && *text != '\r' && *text != '\n')
1764                         text++;
1765
1766                 // line endings:
1767                 // UNIX: \n
1768                 // Mac: \r
1769                 // Windows: \r\n
1770                 if (*text == '\n' || *text == '\r')
1771                 {
1772                         // a newline separates commands in the buffer
1773                         if (*text == '\r' && text[1] == '\n')
1774                                 text++;
1775                         text++;
1776                         break;
1777                 }
1778
1779                 if (!*text)
1780                         return;
1781
1782                 if (cmd->argc == 1)
1783                         cmd->args = text;
1784
1785                 if (!COM_ParseToken_Console(&text))
1786                         return;
1787
1788                 if (cmd->argc < MAX_ARGS)
1789                 {
1790                         l = (int)strlen(com_token) + 1;
1791                         if (cmd->cbuf->tokenizebufferpos + l > CMD_TOKENIZELENGTH)
1792                         {
1793                                 Con_Printf("Cmd_TokenizeString: ran out of %i character buffer space for command arguments\n", CMD_TOKENIZELENGTH);
1794                                 break;
1795                         }
1796                         memcpy (cmd->cbuf->tokenizebuffer + cmd->cbuf->tokenizebufferpos, com_token, l);
1797                         cmd->argv[cmd->argc] = cmd->cbuf->tokenizebuffer + cmd->cbuf->tokenizebufferpos;
1798                         cmd->cbuf->tokenizebufferpos += l;
1799                         cmd->argc++;
1800                 }
1801         }
1802 }
1803
1804
1805 /*
1806 ============
1807 Cmd_AddCommand
1808 ============
1809 */
1810 void Cmd_AddCommand(int flags, const char *cmd_name, xcommand_t function, const char *description)
1811 {
1812         cmd_function_t *func;
1813         cmd_function_t *prev, *current;
1814         cmd_state_t *cmd;
1815         xcommand_t save = NULL;
1816         qbool auto_add = false;
1817         int i;
1818
1819         for (i = 0; i < 3; i++)
1820         {
1821                 cmd = cmd_iter_all[i].cmd;
1822                 if ((flags & cmd->cmd_flags) || (flags & cmd->auto_flags))
1823                 {
1824                         if((flags & cmd->auto_flags) && cmd->auto_function)
1825                         {
1826                                 save = function;
1827                                 function = cmd->auto_function;
1828                                 auto_add = true;
1829                         }
1830
1831                         // fail if the command is a variable name
1832                         if (Cvar_FindVar(cmd->cvars, cmd_name, ~0))
1833                         {
1834                                 Con_Printf("Cmd_AddCommand: %s already defined as a var\n", cmd_name);
1835                                 return;
1836                         }
1837
1838                         if (function)
1839                         {
1840                                 // fail if the command already exists in this interpreter
1841                                 for (func = cmd->engine_functions; func; func = func->next)
1842                                 {
1843                                         if (!strcmp(cmd_name, func->name))
1844                                         {
1845                                                 if(func->autofunc && !auto_add)
1846                                                         break;
1847                                                 Con_Printf("Cmd_AddCommand: %s already defined\n", cmd_name);
1848                                                 goto next;
1849                                         }
1850                                 }
1851
1852                                 func = (cmd_function_t *)Mem_Alloc(cmd->mempool, sizeof(cmd_function_t));
1853                                 func->flags = flags;
1854                                 func->name = cmd_name;
1855                                 func->function = function;
1856                                 func->description = description;
1857                                 func->next = cmd->engine_functions;
1858                                 func->autofunc = auto_add;
1859
1860                                 // insert it at the right alphanumeric position
1861                                 for (prev = NULL, current = cmd->engine_functions; current && strcmp(current->name, func->name) < 0; prev = current, current = current->next)
1862                                         ;
1863                                 if (prev) {
1864                                         prev->next = func;
1865                                 }
1866                                 else {
1867                                         cmd->engine_functions = func;
1868                                 }
1869                                 func->next = current;
1870                         }
1871                         else
1872                         {
1873                                 // mark csqcfunc if the function already exists in the csqc_functions list
1874                                 for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1875                                 {
1876                                         if (!strcmp(cmd_name, func->name))
1877                                         {
1878                                                 func->csqcfunc = true; //[515]: csqc
1879                                                 continue;
1880                                         }
1881                                 }
1882
1883
1884                                 func = (cmd_function_t *)Mem_Alloc(cmd->mempool, sizeof(cmd_function_t));
1885                                 func->name = cmd_name;
1886                                 func->function = function;
1887                                 func->description = description;
1888                                 func->csqcfunc = true; //[515]: csqc
1889                                 func->next = cmd->userdefined->csqc_functions;
1890                                 func->autofunc = false;
1891
1892                                 // insert it at the right alphanumeric position
1893                                 for (prev = NULL, current = cmd->userdefined->csqc_functions; current && strcmp(current->name, func->name) < 0; prev = current, current = current->next)
1894                                         ;
1895                                 if (prev) {
1896                                         prev->next = func;
1897                                 }
1898                                 else {
1899                                         cmd->userdefined->csqc_functions = func;
1900                                 }
1901                                 func->next = current;
1902                         }
1903                         if (save)
1904                                 function = save;
1905                 }
1906 next:
1907                 auto_add = false;
1908                 continue;
1909         }
1910 }
1911
1912 /*
1913 ============
1914 Cmd_Exists
1915 ============
1916 */
1917 qbool Cmd_Exists (cmd_state_t *cmd, const char *cmd_name)
1918 {
1919         cmd_function_t  *func;
1920
1921         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1922                 if (!strcmp(cmd_name, func->name))
1923                         return true;
1924
1925         for (func=cmd->engine_functions ; func ; func=func->next)
1926                 if (!strcmp (cmd_name,func->name))
1927                         return true;
1928
1929         return false;
1930 }
1931
1932
1933 /*
1934 ============
1935 Cmd_CompleteCommand
1936 ============
1937 */
1938 const char *Cmd_CompleteCommand (cmd_state_t *cmd, const char *partial)
1939 {
1940         cmd_function_t *func;
1941         size_t len;
1942
1943         len = strlen(partial);
1944
1945         if (!len)
1946                 return NULL;
1947
1948 // check functions
1949         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1950                 if (!strncasecmp(partial, func->name, len))
1951                         return func->name;
1952
1953         for (func = cmd->engine_functions; func; func = func->next)
1954                 if (!strncasecmp(partial, func->name, len))
1955                         return func->name;
1956
1957         return NULL;
1958 }
1959
1960 /*
1961         Cmd_CompleteCountPossible
1962
1963         New function for tab-completion system
1964         Added by EvilTypeGuy
1965         Thanks to Fett erich@heintz.com
1966         Thanks to taniwha
1967
1968 */
1969 int Cmd_CompleteCountPossible (cmd_state_t *cmd, const char *partial)
1970 {
1971         cmd_function_t *func;
1972         size_t len;
1973         int h;
1974
1975         h = 0;
1976         len = strlen(partial);
1977
1978         if (!len)
1979                 return 0;
1980
1981         // Loop through the command list and count all partial matches
1982         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1983                 if (!strncasecmp(partial, func->name, len))
1984                         h++;
1985
1986         for (func = cmd->engine_functions; func; func = func->next)
1987                 if (!strncasecmp(partial, func->name, len))
1988                         h++;
1989
1990         return h;
1991 }
1992
1993 /*
1994         Cmd_CompleteBuildList
1995
1996         New function for tab-completion system
1997         Added by EvilTypeGuy
1998         Thanks to Fett erich@heintz.com
1999         Thanks to taniwha
2000
2001 */
2002 const char **Cmd_CompleteBuildList (cmd_state_t *cmd, const char *partial)
2003 {
2004         cmd_function_t *func;
2005         size_t len = 0;
2006         size_t bpos = 0;
2007         size_t sizeofbuf = (Cmd_CompleteCountPossible (cmd, partial) + 1) * sizeof (const char *);
2008         const char **buf;
2009
2010         len = strlen(partial);
2011         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
2012         // Loop through the functions lists and print all matches
2013         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
2014                 if (!strncasecmp(partial, func->name, len))
2015                         buf[bpos++] = func->name;
2016         for (func = cmd->engine_functions; func; func = func->next)
2017                 if (!strncasecmp(partial, func->name, len))
2018                         buf[bpos++] = func->name;
2019
2020         buf[bpos] = NULL;
2021         return buf;
2022 }
2023
2024 // written by LadyHavoc
2025 void Cmd_CompleteCommandPrint (cmd_state_t *cmd, const char *partial)
2026 {
2027         cmd_function_t *func;
2028         size_t len = strlen(partial);
2029         // Loop through the command list and print all matches
2030         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
2031                 if (!strncasecmp(partial, func->name, len))
2032                         Con_Printf("^2%s^7: %s\n", func->name, func->description);
2033         for (func = cmd->engine_functions; func; func = func->next)
2034                 if (!strncasecmp(partial, func->name, len))
2035                         Con_Printf("^2%s^7: %s\n", func->name, func->description);
2036 }
2037
2038 /*
2039         Cmd_CompleteAlias
2040
2041         New function for tab-completion system
2042         Added by EvilTypeGuy
2043         Thanks to Fett erich@heintz.com
2044         Thanks to taniwha
2045
2046 */
2047 const char *Cmd_CompleteAlias (cmd_state_t *cmd, const char *partial)
2048 {
2049         cmd_alias_t *alias;
2050         size_t len;
2051
2052         len = strlen(partial);
2053
2054         if (!len)
2055                 return NULL;
2056
2057         // Check functions
2058         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
2059                 if (!strncasecmp(partial, alias->name, len))
2060                         return alias->name;
2061
2062         return NULL;
2063 }
2064
2065 // written by LadyHavoc
2066 void Cmd_CompleteAliasPrint (cmd_state_t *cmd, const char *partial)
2067 {
2068         cmd_alias_t *alias;
2069         size_t len = strlen(partial);
2070         // Loop through the alias list and print all matches
2071         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
2072                 if (!strncasecmp(partial, alias->name, len))
2073                         Con_Printf("^5%s^7: %s", alias->name, alias->value);
2074 }
2075
2076
2077 /*
2078         Cmd_CompleteAliasCountPossible
2079
2080         New function for tab-completion system
2081         Added by EvilTypeGuy
2082         Thanks to Fett erich@heintz.com
2083         Thanks to taniwha
2084
2085 */
2086 int Cmd_CompleteAliasCountPossible (cmd_state_t *cmd, const char *partial)
2087 {
2088         cmd_alias_t     *alias;
2089         size_t          len;
2090         int                     h;
2091
2092         h = 0;
2093
2094         len = strlen(partial);
2095
2096         if (!len)
2097                 return 0;
2098
2099         // Loop through the command list and count all partial matches
2100         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
2101                 if (!strncasecmp(partial, alias->name, len))
2102                         h++;
2103
2104         return h;
2105 }
2106
2107 /*
2108         Cmd_CompleteAliasBuildList
2109
2110         New function for tab-completion system
2111         Added by EvilTypeGuy
2112         Thanks to Fett erich@heintz.com
2113         Thanks to taniwha
2114
2115 */
2116 const char **Cmd_CompleteAliasBuildList (cmd_state_t *cmd, const char *partial)
2117 {
2118         cmd_alias_t *alias;
2119         size_t len = 0;
2120         size_t bpos = 0;
2121         size_t sizeofbuf = (Cmd_CompleteAliasCountPossible (cmd, partial) + 1) * sizeof (const char *);
2122         const char **buf;
2123
2124         len = strlen(partial);
2125         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
2126         // Loop through the alias list and print all matches
2127         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
2128                 if (!strncasecmp(partial, alias->name, len))
2129                         buf[bpos++] = alias->name;
2130
2131         buf[bpos] = NULL;
2132         return buf;
2133 }
2134
2135 // TODO: Make this more generic?
2136 void Cmd_ClearCSQCCommands (cmd_state_t *cmd)
2137 {
2138         cmd_function_t *func;
2139         cmd_function_t **next = &cmd->userdefined->csqc_functions;
2140
2141         while(*next)
2142         {
2143                 func = *next;
2144                 *next = func->next;
2145                 Z_Free(func);
2146         }
2147 }
2148
2149 extern cvar_t sv_cheats;
2150
2151 /*
2152 ============
2153 Cmd_ExecuteString
2154
2155 A complete command line has been parsed, so try to execute it
2156 FIXME: lookupnoadd the token to speed search?
2157 ============
2158 */
2159 void Cmd_ExecuteString (cmd_state_t *cmd, const char *text, cmd_source_t src, qbool lockmutex)
2160 {
2161         int oldpos;
2162         cmd_function_t *func;
2163         cmd_alias_t *a;
2164         if (lockmutex)
2165                 Cbuf_Lock(cmd->cbuf);
2166         oldpos = cmd->cbuf->tokenizebufferpos;
2167         cmd->source = src;
2168
2169         Cmd_TokenizeString (cmd, text);
2170
2171 // execute the command line
2172         if (!Cmd_Argc(cmd))
2173                 goto done; // no tokens
2174
2175 // check functions
2176         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
2177         {
2178                 if (!strcasecmp(cmd->argv[0], func->name))
2179                 {
2180                         if (func->csqcfunc && CL_VM_ConsoleCommand(text))       //[515]: csqc
2181                                 goto done;
2182                         break;
2183                 }
2184         }
2185
2186         for (func = cmd->engine_functions; func; func=func->next)
2187         {
2188                 if (!strcasecmp (cmd->argv[0], func->name))
2189                 {
2190                         switch (src)
2191                         {
2192                         case src_local:
2193                                 if (func->function)
2194                                         func->function(cmd);
2195                                 else
2196                                         Con_Printf("Command \"%s\" can not be executed\n", Cmd_Argv(cmd, 0));
2197                                 goto done;
2198                         case src_client:
2199                                 if (func->function)
2200                                 {
2201                                         if((func->flags & CF_CHEAT) && !sv_cheats.integer)
2202                                                 SV_ClientPrintf("No cheats allowed. The server must have sv_cheats set to 1\n");
2203                                         else
2204                                                 func->function(cmd);
2205                                         goto done;
2206                                 }
2207                         }
2208                         break;
2209                 }
2210         }
2211
2212         // if it's a client command and no command was found, say so.
2213         if (cmd->source == src_client)
2214         {
2215                 Con_Printf("Client \"%s\" tried to execute \"%s\"\n", host_client->name, text);
2216                 goto done;
2217         }
2218
2219 // check alias
2220         for (a=cmd->userdefined->alias ; a ; a=a->next)
2221         {
2222                 if (!strcasecmp (cmd->argv[0], a->name))
2223                 {
2224                         Cmd_ExecuteAlias(cmd, a);
2225                         goto done;
2226                 }
2227         }
2228
2229 // check cvars
2230         if (!Cvar_Command(cmd) && host.framecount > 0)
2231                 Con_Printf("Unknown command \"%s\"\n", Cmd_Argv(cmd, 0));
2232 done:
2233         cmd->cbuf->tokenizebufferpos = oldpos;
2234         if (lockmutex)
2235                 Cbuf_Unlock(cmd->cbuf);
2236 }
2237
2238 /*
2239 ================
2240 Cmd_CheckParm
2241
2242 Returns the position (1 to argc-1) in the command's argument list
2243 where the given parameter apears, or 0 if not present
2244 ================
2245 */
2246
2247 int Cmd_CheckParm (cmd_state_t *cmd, const char *parm)
2248 {
2249         int i;
2250
2251         if (!parm)
2252         {
2253                 Con_Printf ("Cmd_CheckParm: NULL");
2254                 return 0;
2255         }
2256
2257         for (i = 1; i < Cmd_Argc (cmd); i++)
2258                 if (!strcasecmp (parm, Cmd_Argv(cmd, i)))
2259                         return i;
2260
2261         return 0;
2262 }
2263
2264
2265
2266 void Cmd_SaveInitState(void)
2267 {
2268         cmd_iter_t *cmd_iter;
2269         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
2270         {
2271                 cmd_state_t *cmd = cmd_iter->cmd;
2272                 cmd_function_t *f;
2273                 cmd_alias_t *a;
2274                 for (f = cmd->userdefined->csqc_functions; f; f = f->next)
2275                         f->initstate = true;
2276                 for (f = cmd->engine_functions; f; f = f->next)
2277                         f->initstate = true;
2278                 for (a = cmd->userdefined->alias; a; a = a->next)
2279                 {
2280                         a->initstate = true;
2281                         a->initialvalue = Mem_strdup(zonemempool, a->value);
2282                 }
2283         }
2284         Cvar_SaveInitState(&cvars_all);
2285 }
2286
2287 void Cmd_RestoreInitState(void)
2288 {
2289         cmd_iter_t *cmd_iter;
2290         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
2291         {
2292                 cmd_state_t *cmd = cmd_iter->cmd;
2293                 cmd_function_t *f, **fp;
2294                 cmd_alias_t *a, **ap;
2295                 for (fp = &cmd->userdefined->csqc_functions; (f = *fp);)
2296                 {
2297                         if (f->initstate)
2298                                 fp = &f->next;
2299                         else
2300                         {
2301                                 // destroy this command, it didn't exist at init
2302                                 Con_DPrintf("Cmd_RestoreInitState: Destroying command %s\n", f->name);
2303                                 *fp = f->next;
2304                                 Z_Free(f);
2305                         }
2306                 }
2307                 for (fp = &cmd->engine_functions; (f = *fp);)
2308                 {
2309                         if (f->initstate)
2310                                 fp = &f->next;
2311                         else
2312                         {
2313                                 // destroy this command, it didn't exist at init
2314                                 Con_DPrintf("Cmd_RestoreInitState: Destroying command %s\n", f->name);
2315                                 *fp = f->next;
2316                                 Z_Free(f);
2317                         }
2318                 }
2319                 for (ap = &cmd->userdefined->alias; (a = *ap);)
2320                 {
2321                         if (a->initstate)
2322                         {
2323                                 // restore this alias, it existed at init
2324                                 if (strcmp(a->value ? a->value : "", a->initialvalue ? a->initialvalue : ""))
2325                                 {
2326                                         Con_DPrintf("Cmd_RestoreInitState: Restoring alias %s\n", a->name);
2327                                         if (a->value)
2328                                                 Z_Free(a->value);
2329                                         a->value = Mem_strdup(zonemempool, a->initialvalue);
2330                                 }
2331                                 ap = &a->next;
2332                         }
2333                         else
2334                         {
2335                                 // free this alias, it didn't exist at init...
2336                                 Con_DPrintf("Cmd_RestoreInitState: Destroying alias %s\n", a->name);
2337                                 *ap = a->next;
2338                                 if (a->value)
2339                                         Z_Free(a->value);
2340                                 Z_Free(a);
2341                         }
2342                 }
2343         }
2344         Cvar_RestoreInitState(&cvars_all);
2345 }