qcsrc/common/util.qc

   1 #include "util.qh"
   2
   3 #if defined(CSQC)
   4     #include "../client/defs.qh"
   5     #include "constants.qh"
   6         #include "../client/mutators/events.qh"
   7     #include "mapinfo.qh"
   8     #include "notifications/all.qh"
   9     #include <common/deathtypes/all.qh>
  10 #elif defined(MENUQC)
  11 #elif defined(SVQC)
  12     #include "constants.qh"
  13     #include "../server/autocvars.qh"
  14     #include "../server/defs.qh"
  15         #include "../server/mutators/events.qh"
  16     #include "notifications/all.qh"
  17     #include <common/deathtypes/all.qh>
  18     #include "mapinfo.qh"
  19 #endif
  20
  21 #ifdef GAMEQC
  22 /*
  23 * Get "real" origin, in worldspace, even if ent is attached to something else.
  24 */
  25 vector real_origin(entity ent)
  26 {
  27         vector v = ((ent.absmin + ent.absmax) * 0.5);
  28         entity e = ent.tag_entity;
  29
  30         while(e)
  31         {
  32                 v = v + ((e.absmin + e.absmax) * 0.5);
  33                 e = e.tag_entity;
  34         }
  35
  36         return v;
  37 }
  38 #endif
  39
  40 string wordwrap_buffer;
  41
  42 void wordwrap_buffer_put(string s)
  43 {
  44         wordwrap_buffer = strcat(wordwrap_buffer, s);
  45 }
  46
  47 string wordwrap(string s, float l)
  48 {
  49         string r;
  50         wordwrap_buffer = "";
  51         wordwrap_cb(s, l, wordwrap_buffer_put);
  52         r = wordwrap_buffer;
  53         wordwrap_buffer = "";
  54         return r;
  55 }
  56
  57 #ifdef SVQC
  58 entity _wordwrap_buffer_sprint_ent;
  59 void wordwrap_buffer_sprint(string s)
  60 {
  61         wordwrap_buffer = strcat(wordwrap_buffer, s);
  62         if(s == "\n")
  63         {
  64                 sprint(_wordwrap_buffer_sprint_ent, wordwrap_buffer);
  65                 wordwrap_buffer = "";
  66         }
  67 }
  68
  69 void wordwrap_sprint(entity to, string s, float l)
  70 {
  71         wordwrap_buffer = "";
  72         _wordwrap_buffer_sprint_ent = to;
  73         wordwrap_cb(s, l, wordwrap_buffer_sprint);
  74         _wordwrap_buffer_sprint_ent = NULL;
  75         if(wordwrap_buffer != "")
  76                 sprint(to, strcat(wordwrap_buffer, "\n"));
  77         wordwrap_buffer = "";
  78         return;
  79 }
  80 #endif
  81
  82 #ifndef SVQC
  83 string draw_UseSkinFor(string pic)
  84 {
  85         if(substring(pic, 0, 1) == "/")
  86                 return substring(pic, 1, strlen(pic)-1);
  87         else
  88                 return strcat(draw_currentSkin, "/", pic);
  89 }
  90 #endif
  91
  92 void wordwrap_cb(string s, float l, void(string) callback)
  93 {
  94         string c;
  95         float lleft, i, j, wlen;
  96
  97         s = strzone(s);
  98         lleft = l;
  99         for (i = 0;i < strlen(s);++i)
 100         {
 101                 if (substring(s, i, 2) == "\\n")
 102                 {
 103                         callback("\n");
 104                         lleft = l;
 105                         ++i;
 106                 }
 107                 else if (substring(s, i, 1) == "\n")
 108                 {
 109                         callback("\n");
 110                         lleft = l;
 111                 }
 112                 else if (substring(s, i, 1) == " ")
 113                 {
 114                         if (lleft > 0)
 115                         {
 116                                 callback(" ");
 117                                 lleft = lleft - 1;
 118                         }
 119                 }
 120                 else
 121                 {
 122                         for (j = i+1;j < strlen(s);++j)
 123                                 //    ^^ this skips over the first character of a word, which
 124                                 //       is ALWAYS part of the word
 125                                 //       this is safe since if i+1 == strlen(s), i will become
 126                                 //       strlen(s)-1 at the end of this block and the function
 127                                 //       will terminate. A space can't be the first character we
 128                                 //       read here, and neither can a \n be the start, since these
 129                                 //       two cases have been handled above.
 130                         {
 131                                 c = substring(s, j, 1);
 132                                 if (c == " ")
 133                                         break;
 134                                 if (c == "\\")
 135                                         break;
 136                                 if (c == "\n")
 137                                         break;
 138                                 // we need to keep this tempstring alive even if substring is
 139                                 // called repeatedly, so call strcat even though we're not
 140                                 // doing anything
 141                                 callback("");
 142                         }
 143                         wlen = j - i;
 144                         if (lleft < wlen)
 145                         {
 146                                 callback("\n");
 147                                 lleft = l;
 148                         }
 149                         callback(substring(s, i, wlen));
 150                         lleft = lleft - wlen;
 151                         i = j - 1;
 152                 }
 153         }
 154         strunzone(s);
 155 }
 156
 157 void depthfirst(entity start, .entity up, .entity downleft, .entity right, void(entity, entity) funcPre, void(entity, entity) funcPost, entity pass)
 158 {
 159         entity e;
 160         e = start;
 161         funcPre(pass, e);
 162         while (e.(downleft))
 163         {
 164                 e = e.(downleft);
 165                 funcPre(pass, e);
 166         }
 167         funcPost(pass, e);
 168         while(e != start)
 169         {
 170                 if (e.(right))
 171                 {
 172                         e = e.(right);
 173                         funcPre(pass, e);
 174                         while (e.(downleft))
 175                         {
 176                                 e = e.(downleft);
 177                                 funcPre(pass, e);
 178                         }
 179                 }
 180                 else
 181                         e = e.(up);
 182                 funcPost(pass, e);
 183         }
 184 }
 185
 186 string ScoreString(int pFlags, float pValue)
 187 {
 188         string valstr;
 189         float l;
 190
 191         pValue = floor(pValue + 0.5); // round
 192
 193         if((pValue == 0) && (pFlags & (SFL_HIDE_ZERO | SFL_RANK | SFL_TIME)))
 194                 valstr = "";
 195         else if(pFlags & SFL_RANK)
 196         {
 197                 valstr = ftos(pValue);
 198                 l = strlen(valstr);
 199                 if((l >= 2) && (substring(valstr, l - 2, 1) == "1"))
 200                         valstr = strcat(valstr, "th");
 201                 else if(substring(valstr, l - 1, 1) == "1")
 202                         valstr = strcat(valstr, "st");
 203                 else if(substring(valstr, l - 1, 1) == "2")
 204                         valstr = strcat(valstr, "nd");
 205                 else if(substring(valstr, l - 1, 1) == "3")
 206                         valstr = strcat(valstr, "rd");
 207                 else
 208                         valstr = strcat(valstr, "th");
 209         }
 210         else if(pFlags & SFL_TIME)
 211                 valstr = TIME_ENCODED_TOSTRING(pValue);
 212         else
 213                 valstr = ftos(pValue);
 214
 215         return valstr;
 216 }
 217
 218 // compressed vector format:
 219 // like MD3, just even shorter
 220 //   4 bit pitch (16 angles), 0 is -90, 8 is 0, 16 would be 90
 221 //   5 bit yaw (32 angles), 0=0, 8=90, 16=180, 24=270
 222 //   7 bit length (logarithmic encoding), 1/8 .. about 7844
 223 //     length = 2^(length_encoded/8) / 8
 224 // if pitch is 90, yaw does nothing and therefore indicates the sign (yaw is then either 11111 or 11110); 11111 is pointing DOWN
 225 // thus, valid values are from 0000.11110.0000000 to 1111.11111.1111111
 226 // the special value 0 indicates the zero vector
 227
 228 float lengthLogTable[128];
 229
 230 float invertLengthLog(float dist)
 231 {
 232         int l, r, m;
 233
 234         if(dist >= lengthLogTable[127])
 235                 return 127;
 236         if(dist <= lengthLogTable[0])
 237                 return 0;
 238
 239         l = 0;
 240         r = 127;
 241
 242         while(r - l > 1)
 243         {
 244                 m = floor((l + r) / 2);
 245                 if(lengthLogTable[m] < dist)
 246                         l = m;
 247                 else
 248                         r = m;
 249         }
 250
 251         // now: r is >=, l is <
 252         float lerr = (dist - lengthLogTable[l]);
 253         float rerr = (lengthLogTable[r] - dist);
 254         if(lerr < rerr)
 255                 return l;
 256         return r;
 257 }
 258
 259 vector decompressShortVector(int data)
 260 {
 261         vector out;
 262         if(data == 0)
 263                 return '0 0 0';
 264         float p = (data & 0xF000) / 0x1000;
 265         float q = (data & 0x0F80) / 0x80;
 266         int len = (data & 0x007F);
 267
 268         //print("\ndecompress: p ", ftos(p)); print("q ", ftos(q)); print("len ", ftos(len), "\n");
 269
 270         if(p == 0)
 271         {
 272                 out.x = 0;
 273                 out.y = 0;
 274                 if(q == 31)
 275                         out.z = -1;
 276                 else
 277                         out.z = +1;
 278         }
 279         else
 280         {
 281                 q   = .19634954084936207740 * q;
 282                 p = .19634954084936207740 * p - 1.57079632679489661922;
 283                 out.x = cos(q) *  cos(p);
 284                 out.y = sin(q) *  cos(p);
 285                 out.z =          -sin(p);
 286         }
 287
 288         //print("decompressed: ", vtos(out), "\n");
 289
 290         return out * lengthLogTable[len];
 291 }
 292
 293 float compressShortVector(vector vec)
 294 {
 295         vector ang;
 296         float p, y, len;
 297         if(vec == '0 0 0')
 298                 return 0;
 299         //print("compress: ", vtos(vec), "\n");
 300         ang = vectoangles(vec);
 301         ang.x = -ang.x;
 302         if(ang.x < -90)
 303                 ang.x += 360;
 304         if(ang.x < -90 && ang.x > +90)
 305                 error("BOGUS vectoangles");
 306         //print("angles: ", vtos(ang), "\n");
 307
 308         p = floor(0.5 + (ang.x + 90) * 16 / 180) & 15; // -90..90 to 0..14
 309         if(p == 0)
 310         {
 311                 if(vec.z < 0)
 312                         y = 31;
 313                 else
 314                         y = 30;
 315         }
 316         else
 317                 y = floor(0.5 + ang.y * 32 / 360)          & 31; // 0..360 to 0..32
 318         len = invertLengthLog(vlen(vec));
 319
 320         //print("compressed: p ", ftos(p)); print("y ", ftos(y)); print("len ", ftos(len), "\n");
 321
 322         return (p * 0x1000) + (y * 0x80) + len;
 323 }
 324
 325 STATIC_INIT(compressShortVector)
 326 {
 327         float l = 1;
 328         float f = pow(2, 1/8);
 329         int i;
 330         for(i = 0; i < 128; ++i)
 331         {
 332                 lengthLogTable[i] = l;
 333                 l *= f;
 334         }
 335
 336         if(cvar("developer"))
 337         {
 338                 LOG_INFO("Verifying vector compression table...\n");
 339                 for(i = 0x0F00; i < 0xFFFF; ++i)
 340                         if(i != compressShortVector(decompressShortVector(i)))
 341                         {
 342                                 LOG_INFO("BROKEN vector compression: ", ftos(i));
 343                                 LOG_INFO(" -> ", vtos(decompressShortVector(i)));
 344                                 LOG_INFO(" -> ", ftos(compressShortVector(decompressShortVector(i))));
 345                                 LOG_INFO("\n");
 346                                 error("b0rk");
 347                         }
 348                 LOG_INFO("Done.\n");
 349         }
 350 }
 351
 352 #ifdef GAMEQC
 353 float CheckWireframeBox(entity forent, vector v0, vector dvx, vector dvy, vector dvz)
 354 {
 355         traceline(v0, v0 + dvx, true, forent); if(trace_fraction < 1) return 0;
 356         traceline(v0, v0 + dvy, true, forent); if(trace_fraction < 1) return 0;
 357         traceline(v0, v0 + dvz, true, forent); if(trace_fraction < 1) return 0;
 358         traceline(v0 + dvx, v0 + dvx + dvy, true, forent); if(trace_fraction < 1) return 0;
 359         traceline(v0 + dvx, v0 + dvx + dvz, true, forent); if(trace_fraction < 1) return 0;
 360         traceline(v0 + dvy, v0 + dvy + dvx, true, forent); if(trace_fraction < 1) return 0;
 361         traceline(v0 + dvy, v0 + dvy + dvz, true, forent); if(trace_fraction < 1) return 0;
 362         traceline(v0 + dvz, v0 + dvz + dvx, true, forent); if(trace_fraction < 1) return 0;
 363         traceline(v0 + dvz, v0 + dvz + dvy, true, forent); if(trace_fraction < 1) return 0;
 364         traceline(v0 + dvx + dvy, v0 + dvx + dvy + dvz, true, forent); if(trace_fraction < 1) return 0;
 365         traceline(v0 + dvx + dvz, v0 + dvx + dvy + dvz, true, forent); if(trace_fraction < 1) return 0;
 366         traceline(v0 + dvy + dvz, v0 + dvx + dvy + dvz, true, forent); if(trace_fraction < 1) return 0;
 367         return 1;
 368 }
 369 #endif
 370
 371 string fixPriorityList(string order, float from, float to, float subtract, float complete)
 372 {
 373         string neworder;
 374         float i, n, w;
 375
 376         n = tokenize_console(order);
 377         neworder = "";
 378         for(i = 0; i < n; ++i)
 379         {
 380                 w = stof(argv(i));
 381                 if(w == floor(w))
 382                 {
 383                         if(w >= from && w <= to)
 384                                 neworder = strcat(neworder, ftos(w), " ");
 385                         else
 386                         {
 387                                 w -= subtract;
 388                                 if(w >= from && w <= to)
 389                                         neworder = strcat(neworder, ftos(w), " ");
 390                         }
 391                 }
 392         }
 393
 394         if(complete)
 395         {
 396                 n = tokenize_console(neworder);
 397                 for(w = to; w >= from; --w)
 398                 {
 399                         int wflags = Weapons_from(w).spawnflags;
 400                         if((wflags & WEP_FLAG_HIDDEN) && (wflags & WEP_FLAG_MUTATORBLOCKED) && !(wflags & WEP_FLAG_NORMAL))
 401                                 continue;
 402                         for(i = 0; i < n; ++i)
 403                                 if(stof(argv(i)) == w)
 404                                         break;
 405                         if(i == n) // not found
 406                                 neworder = strcat(neworder, ftos(w), " ");
 407                 }
 408         }
 409
 410         return substring(neworder, 0, strlen(neworder) - 1);
 411 }
 412
 413 string mapPriorityList(string order, string(string) mapfunc)
 414 {
 415         string neworder;
 416         float n;
 417
 418         n = tokenize_console(order);
 419         neworder = "";
 420         for(float i = 0; i < n; ++i)
 421                 neworder = strcat(neworder, mapfunc(argv(i)), " ");
 422
 423         return substring(neworder, 0, strlen(neworder) - 1);
 424 }
 425
 426 string swapInPriorityList(string order, float i, float j)
 427 {
 428         float n = tokenize_console(order);
 429
 430         if(i >= 0 && i < n && j >= 0 && j < n && i != j)
 431         {
 432                 string s = "";
 433                 for(float w = 0; w < n; ++w)
 434                 {
 435                         if(w == i)
 436                                 s = strcat(s, argv(j), " ");
 437                         else if(w == j)
 438                                 s = strcat(s, argv(i), " ");
 439                         else
 440                                 s = strcat(s, argv(w), " ");
 441                 }
 442                 return substring(s, 0, strlen(s) - 1);
 443         }
 444
 445         return order;
 446 }
 447
 448 #ifdef GAMEQC
 449 void get_mi_min_max(float mode)
 450 {
 451         vector mi, ma;
 452
 453         if(mi_shortname)
 454                 strunzone(mi_shortname);
 455         mi_shortname = mapname;
 456         if(!strcasecmp(substring(mi_shortname, 0, 5), "maps/"))
 457                 mi_shortname = substring(mi_shortname, 5, strlen(mi_shortname) - 5);
 458         if(!strcasecmp(substring(mi_shortname, strlen(mi_shortname) - 4, 4), ".bsp"))
 459                 mi_shortname = substring(mi_shortname, 0, strlen(mi_shortname) - 4);
 460         mi_shortname = strzone(mi_shortname);
 461
 462 #ifdef CSQC
 463         mi = world.mins;
 464         ma = world.maxs;
 465 #else
 466         mi = world.absmin;
 467         ma = world.absmax;
 468 #endif
 469
 470         mi_min = mi;
 471         mi_max = ma;
 472         MapInfo_Get_ByName(mi_shortname, 0, NULL);
 473         if(MapInfo_Map_mins.x < MapInfo_Map_maxs.x)
 474         {
 475                 mi_min = MapInfo_Map_mins;
 476                 mi_max = MapInfo_Map_maxs;
 477         }
 478         else
 479         {
 480                 // not specified
 481                 if(mode)
 482                 {
 483                         // be clever
 484                         tracebox('1 0 0' * mi.x,
 485                                          '0 1 0' * mi.y + '0 0 1' * mi.z,
 486                                          '0 1 0' * ma.y + '0 0 1' * ma.z,
 487                                          '1 0 0' * ma.x,
 488                                          MOVE_WORLDONLY,
 489                                          NULL);
 490                         if(!trace_startsolid)
 491                                 mi_min.x = trace_endpos.x;
 492
 493                         tracebox('0 1 0' * mi.y,
 494                                          '1 0 0' * mi.x + '0 0 1' * mi.z,
 495                                          '1 0 0' * ma.x + '0 0 1' * ma.z,
 496                                          '0 1 0' * ma.y,
 497                                          MOVE_WORLDONLY,
 498                                          NULL);
 499                         if(!trace_startsolid)
 500                                 mi_min.y = trace_endpos.y;
 501
 502                         tracebox('0 0 1' * mi.z,
 503                                          '1 0 0' * mi.x + '0 1 0' * mi.y,
 504                                          '1 0 0' * ma.x + '0 1 0' * ma.y,
 505                                          '0 0 1' * ma.z,
 506                                          MOVE_WORLDONLY,
 507                                          NULL);
 508                         if(!trace_startsolid)
 509                                 mi_min.z = trace_endpos.z;
 510
 511                         tracebox('1 0 0' * ma.x,
 512                                          '0 1 0' * mi.y + '0 0 1' * mi.z,
 513                                          '0 1 0' * ma.y + '0 0 1' * ma.z,
 514                                          '1 0 0' * mi.x,
 515                                          MOVE_WORLDONLY,
 516                                          NULL);
 517                         if(!trace_startsolid)
 518                                 mi_max.x = trace_endpos.x;
 519
 520                         tracebox('0 1 0' * ma.y,
 521                                          '1 0 0' * mi.x + '0 0 1' * mi.z,
 522                                          '1 0 0' * ma.x + '0 0 1' * ma.z,
 523                                          '0 1 0' * mi.y,
 524                                          MOVE_WORLDONLY,
 525                                          NULL);
 526                         if(!trace_startsolid)
 527                                 mi_max.y = trace_endpos.y;
 528
 529                         tracebox('0 0 1' * ma.z,
 530                                          '1 0 0' * mi.x + '0 1 0' * mi.y,
 531                                          '1 0 0' * ma.x + '0 1 0' * ma.y,
 532                                          '0 0 1' * mi.z,
 533                                          MOVE_WORLDONLY,
 534                                          NULL);
 535                         if(!trace_startsolid)
 536                                 mi_max.z = trace_endpos.z;
 537                 }
 538         }
 539 }
 540
 541 void get_mi_min_max_texcoords(float mode)
 542 {
 543         vector extend;
 544
 545         get_mi_min_max(mode);
 546
 547         mi_picmin = mi_min;
 548         mi_picmax = mi_max;
 549
 550         // extend mi_picmax to get a square aspect ratio
 551         // center the map in that area
 552         extend = mi_picmax - mi_picmin;
 553         if(extend.y > extend.x)
 554         {
 555                 mi_picmin.x -= (extend.y - extend.x) * 0.5;
 556                 mi_picmax.x += (extend.y - extend.x) * 0.5;
 557         }
 558         else
 559         {
 560                 mi_picmin.y -= (extend.x - extend.y) * 0.5;
 561                 mi_picmax.y += (extend.x - extend.y) * 0.5;
 562         }
 563
 564         // add another some percent
 565         extend = (mi_picmax - mi_picmin) * (1 / 64.0);
 566         mi_picmin -= extend;
 567         mi_picmax += extend;
 568
 569         // calculate the texcoords
 570         mi_pictexcoord0 = mi_pictexcoord1 = mi_pictexcoord2 = mi_pictexcoord3 = '0 0 0';
 571         // first the two corners of the origin
 572         mi_pictexcoord0_x = (mi_min.x - mi_picmin.x) / (mi_picmax.x - mi_picmin.x);
 573         mi_pictexcoord0_y = (mi_min.y - mi_picmin.y) / (mi_picmax.y - mi_picmin.y);
 574         mi_pictexcoord2_x = (mi_max.x - mi_picmin.x) / (mi_picmax.x - mi_picmin.x);
 575         mi_pictexcoord2_y = (mi_max.y - mi_picmin.y) / (mi_picmax.y - mi_picmin.y);
 576         // then the other corners
 577         mi_pictexcoord1_x = mi_pictexcoord0_x;
 578         mi_pictexcoord1_y = mi_pictexcoord2_y;
 579         mi_pictexcoord3_x = mi_pictexcoord2_x;
 580         mi_pictexcoord3_y = mi_pictexcoord0_y;
 581 }
 582 #endif
 583
 584 float cvar_settemp(string tmp_cvar, string tmp_value)
 585 {
 586         float created_saved_value;
 587
 588         created_saved_value = 0;
 589
 590         if (!(tmp_cvar || tmp_value))
 591         {
 592                 LOG_TRACE("Error: Invalid usage of cvar_settemp(string, string); !");
 593                 return 0;
 594         }
 595
 596         if(!cvar_type(tmp_cvar))
 597         {
 598                 LOG_INFOF("Error: cvar %s doesn't exist!\n", tmp_cvar);
 599                 return 0;
 600         }
 601
 602         IL_EACH(g_saved_cvars, it.netname == tmp_cvar,
 603         {
 604                 created_saved_value = -1; // skip creation
 605                 break; // no need to continue
 606         });
 607
 608         if(created_saved_value != -1)
 609         {
 610                 // creating a new entity to keep track of this cvar
 611                 entity e = new_pure(saved_cvar_value);
 612                 IL_PUSH(g_saved_cvars, e);
 613                 e.netname = strzone(tmp_cvar);
 614                 e.message = strzone(cvar_string(tmp_cvar));
 615                 created_saved_value = 1;
 616         }
 617
 618         // update the cvar to the value given
 619         cvar_set(tmp_cvar, tmp_value);
 620
 621         return created_saved_value;
 622 }
 623
 624 int cvar_settemp_restore()
 625 {
 626         int j = 0;
 627         // FIXME this new-style loop fails!
 628 #if 0
 629         FOREACH_ENTITY_CLASS("saved_cvar_value", true,
 630         {
 631                 if(cvar_type(it.netname))
 632                 {
 633                         cvar_set(it.netname, it.message);
 634                         strunzone(it.netname);
 635                         strunzone(it.message);
 636                         delete(it);
 637                         ++j;
 638                 }
 639                 else
 640                         LOG_INFOF("Error: cvar %s doesn't exist anymore! It can still be restored once it's manually recreated.\n", it.netname);
 641         });
 642
 643 #else
 644         entity e = NULL;
 645         while((e = find(e, classname, "saved_cvar_value")))
 646         {
 647                 if(cvar_type(e.netname))
 648                 {
 649                         cvar_set(e.netname, e.message);
 650                         delete(e);
 651                         ++j;
 652                 }
 653                 else
 654                         print(sprintf("Error: cvar %s doesn't exist anymore! It can still be restored once it's manually recreated.\n", e.netname));
 655         }
 656 #endif
 657
 658         return j;
 659 }
 660
 661 bool isCaretEscaped(string theText, float pos)
 662 {
 663         int i = 0;
 664         while(pos - i >= 1 && substring(theText, pos - i - 1, 1) == "^")
 665                 ++i;
 666         return (i & 1);
 667 }
 668
 669 int skipIncompleteTag(string theText, float pos, int len)
 670 {
 671         int i = 0, ch = 0;
 672         int tag_start = -1;
 673
 674         if(substring(theText, pos - 1, 1) == "^")
 675         {
 676                 if(isCaretEscaped(theText, pos - 1) || pos >= len)
 677                         return 0;
 678
 679                 ch = str2chr(theText, pos);
 680                 if(ch >= '0' && ch <= '9')
 681                         return 1; // ^[0-9] color code found
 682                 else if (ch == 'x')
 683                         tag_start = pos - 1; // ^x tag found
 684                 else
 685                         return 0;
 686         }
 687         else
 688         {
 689                 for(i = 2; pos - i >= 0 && i <= 4; ++i)
 690                 {
 691                         if(substring(theText, pos - i, 2) == "^x")
 692                         {
 693                                 tag_start = pos - i; // ^x tag found
 694                                 break;
 695                         }
 696                 }
 697         }
 698
 699         if(tag_start >= 0)
 700         {
 701                 if(tag_start + 5 < len)
 702                 if(IS_HEXDIGIT(substring(theText, tag_start + 2, 1)))
 703                 if(IS_HEXDIGIT(substring(theText, tag_start + 3, 1)))
 704                 if(IS_HEXDIGIT(substring(theText, tag_start + 4, 1)))
 705                 {
 706                         if(!isCaretEscaped(theText, tag_start))
 707                                 return 5 - (pos - tag_start); // ^xRGB color code found
 708                 }
 709         }
 710         return 0;
 711 }
 712
 713 float textLengthUpToWidth(string theText, float maxWidth, vector theSize, textLengthUpToWidth_widthFunction_t w)
 714 {
 715         // STOP.
 716         // The following function is SLOW.
 717         // For your safety and for the protection of those around you...
 718         // DO NOT CALL THIS AT HOME.
 719         // No really, don't.
 720         if(w(theText, theSize) <= maxWidth)
 721                 return strlen(theText); // yeah!
 722
 723         bool colors = (w("^7", theSize) == 0);
 724
 725         // binary search for right place to cut string
 726         int len, left, right, middle;
 727         left = 0;
 728         right = len = strlen(theText);
 729         int ofs = 0;
 730         do
 731         {
 732                 middle = floor((left + right) / 2);
 733                 if(colors)
 734                         ofs = skipIncompleteTag(theText, middle, len);
 735                 if(w(substring(theText, 0, middle + ofs), theSize) <= maxWidth)
 736                         left = middle + ofs;
 737                 else
 738                         right = middle;
 739         }
 740         while(left < right - 1);
 741
 742         return left;
 743 }
 744
 745 float textLengthUpToLength(string theText, float maxWidth, textLengthUpToLength_lenFunction_t w)
 746 {
 747         // STOP.
 748         // The following function is SLOW.
 749         // For your safety and for the protection of those around you...
 750         // DO NOT CALL THIS AT HOME.
 751         // No really, don't.
 752         if(w(theText) <= maxWidth)
 753                 return strlen(theText); // yeah!
 754
 755         bool colors = (w("^7") == 0);
 756
 757         // binary search for right place to cut string
 758         int len, left, right, middle;
 759         left = 0;
 760         right = len = strlen(theText);
 761         int ofs = 0;
 762         do
 763         {
 764                 middle = floor((left + right) / 2);
 765                 if(colors)
 766                         ofs = skipIncompleteTag(theText, middle, len);
 767                 if(w(substring(theText, 0, middle + ofs)) <= maxWidth)
 768                         left = middle + ofs;
 769                 else
 770                         right = middle;
 771         }
 772         while(left < right - 1);
 773
 774         return left;
 775 }
 776
 777 string find_last_color_code(string s)
 778 {
 779         int start = strstrofs(s, "^", 0);
 780         if (start == -1) // no caret found
 781                 return "";
 782         int len = strlen(s)-1;
 783         int i;
 784         for(i = len; i >= start; --i)
 785         {
 786                 if(substring(s, i, 1) != "^")
 787                         continue;
 788
 789                 int carets = 1;
 790                 while (i-carets >= start && substring(s, i-carets, 1) == "^")
 791                         ++carets;
 792
 793                 // check if carets aren't all escaped
 794                 if (carets & 1)
 795                 {
 796                         if(i+1 <= len)
 797                         if(IS_DIGIT(substring(s, i+1, 1)))
 798                                 return substring(s, i, 2);
 799
 800                         if(i+4 <= len)
 801                         if(substring(s, i+1, 1) == "x")
 802                         if(IS_HEXDIGIT(substring(s, i + 2, 1)))
 803                         if(IS_HEXDIGIT(substring(s, i + 3, 1)))
 804                         if(IS_HEXDIGIT(substring(s, i + 4, 1)))
 805                                 return substring(s, i, 5);
 806                 }
 807                 i -= carets; // this also skips one char before the carets
 808         }
 809
 810         return "";
 811 }
 812
 813 string getWrappedLine(float w, vector theFontSize, textLengthUpToWidth_widthFunction_t tw)
 814 {
 815         float cantake;
 816         float take;
 817         string s;
 818
 819         s = getWrappedLine_remaining;
 820
 821         if(w <= 0)
 822         {
 823                 getWrappedLine_remaining = string_null;
 824                 return s; // the line has no size ANYWAY, nothing would be displayed.
 825         }
 826
 827         cantake = textLengthUpToWidth(s, w, theFontSize, tw);
 828         if(cantake > 0 && cantake < strlen(s))
 829         {
 830                 take = cantake - 1;
 831                 while(take > 0 && substring(s, take, 1) != " ")
 832                         --take;
 833                 if(take == 0)
 834                 {
 835                         getWrappedLine_remaining = substring(s, cantake, strlen(s) - cantake);
 836                         if(getWrappedLine_remaining == "")
 837                                 getWrappedLine_remaining = string_null;
 838                         else if (tw("^7", theFontSize) == 0)
 839                                 getWrappedLine_remaining = strcat(find_last_color_code(substring(s, 0, cantake)), getWrappedLine_remaining);
 840                         return substring(s, 0, cantake);
 841                 }
 842                 else
 843                 {
 844                         getWrappedLine_remaining = substring(s, take + 1, strlen(s) - take);
 845                         if(getWrappedLine_remaining == "")
 846                                 getWrappedLine_remaining = string_null;
 847                         else if (tw("^7", theFontSize) == 0)
 848                                 getWrappedLine_remaining = strcat(find_last_color_code(substring(s, 0, take)), getWrappedLine_remaining);
 849                         return substring(s, 0, take);
 850                 }
 851         }
 852         else
 853         {
 854                 getWrappedLine_remaining = string_null;
 855                 return s;
 856         }
 857 }
 858
 859 string getWrappedLineLen(float w, textLengthUpToLength_lenFunction_t tw)
 860 {
 861         float cantake;
 862         float take;
 863         string s;
 864
 865         s = getWrappedLine_remaining;
 866
 867         if(w <= 0)
 868         {
 869                 getWrappedLine_remaining = string_null;
 870                 return s; // the line has no size ANYWAY, nothing would be displayed.
 871         }
 872
 873         cantake = textLengthUpToLength(s, w, tw);
 874         if(cantake > 0 && cantake < strlen(s))
 875         {
 876                 take = cantake - 1;
 877                 while(take > 0 && substring(s, take, 1) != " ")
 878                         --take;
 879                 if(take == 0)
 880                 {
 881                         getWrappedLine_remaining = substring(s, cantake, strlen(s) - cantake);
 882                         if(getWrappedLine_remaining == "")
 883                                 getWrappedLine_remaining = string_null;
 884                         else if (tw("^7") == 0)
 885                                 getWrappedLine_remaining = strcat(find_last_color_code(substring(s, 0, cantake)), getWrappedLine_remaining);
 886                         return substring(s, 0, cantake);
 887                 }
 888                 else
 889                 {
 890                         getWrappedLine_remaining = substring(s, take + 1, strlen(s) - take);
 891                         if(getWrappedLine_remaining == "")
 892                                 getWrappedLine_remaining = string_null;
 893                         else if (tw("^7") == 0)
 894                                 getWrappedLine_remaining = strcat(find_last_color_code(substring(s, 0, take)), getWrappedLine_remaining);
 895                         return substring(s, 0, take);
 896                 }
 897         }
 898         else
 899         {
 900                 getWrappedLine_remaining = string_null;
 901                 return s;
 902         }
 903 }
 904
 905 string textShortenToWidth(string theText, float maxWidth, vector theFontSize, textLengthUpToWidth_widthFunction_t tw)
 906 {
 907         if(tw(theText, theFontSize) <= maxWidth)
 908                 return theText;
 909         else
 910                 return strcat(substring(theText, 0, textLengthUpToWidth(theText, maxWidth - tw("...", theFontSize), theFontSize, tw)), "...");
 911 }
 912
 913 string textShortenToLength(string theText, float maxWidth, textLengthUpToLength_lenFunction_t tw)
 914 {
 915         if(tw(theText) <= maxWidth)
 916                 return theText;
 917         else
 918                 return strcat(substring(theText, 0, textLengthUpToLength(theText, maxWidth - tw("..."), tw)), "...");
 919 }
 920
 921 float isGametypeInFilter(Gametype gt, float tp, float ts, string pattern)
 922 {
 923         string subpattern, subpattern2, subpattern3, subpattern4;
 924         subpattern = strcat(",", MapInfo_Type_ToString(gt), ",");
 925         if(tp)
 926                 subpattern2 = ",teams,";
 927         else
 928                 subpattern2 = ",noteams,";
 929         if(ts)
 930                 subpattern3 = ",teamspawns,";
 931         else
 932                 subpattern3 = ",noteamspawns,";
 933         if(gt == MAPINFO_TYPE_RACE || gt == MAPINFO_TYPE_CTS)
 934                 subpattern4 = ",race,";
 935         else
 936                 subpattern4 = string_null;
 937
 938         if(substring(pattern, 0, 1) == "-")
 939         {
 940                 pattern = substring(pattern, 1, strlen(pattern) - 1);
 941                 if(strstrofs(strcat(",", pattern, ","), subpattern, 0) >= 0)
 942                         return 0;
 943                 if(strstrofs(strcat(",", pattern, ","), subpattern2, 0) >= 0)
 944                         return 0;
 945                 if(strstrofs(strcat(",", pattern, ","), subpattern3, 0) >= 0)
 946                         return 0;
 947                 if(subpattern4 && strstrofs(strcat(",", pattern, ","), subpattern4, 0) >= 0)
 948                         return 0;
 949         }
 950         else
 951         {
 952                 if(substring(pattern, 0, 1) == "+")
 953                         pattern = substring(pattern, 1, strlen(pattern) - 1);
 954                 if(strstrofs(strcat(",", pattern, ","), subpattern, 0) < 0)
 955                 if(strstrofs(strcat(",", pattern, ","), subpattern2, 0) < 0)
 956                 if(strstrofs(strcat(",", pattern, ","), subpattern3, 0) < 0)
 957                 {
 958                         if (!subpattern4)
 959                                 return 0;
 960                         if(strstrofs(strcat(",", pattern, ","), subpattern4, 0) < 0)
 961                                 return 0;
 962                 }
 963         }
 964         return 1;
 965 }
 966
 967 vector solve_shotdirection(vector myorg, vector myvel, vector eorg, vector evel, float spd, float newton_style)
 968 {
 969         vector ret;
 970
 971         // make origin and speed relative
 972         eorg -= myorg;
 973         if(newton_style)
 974                 evel -= myvel;
 975
 976         // now solve for ret, ret normalized:
 977         //   eorg + t * evel == t * ret * spd
 978         // or, rather, solve for t:
 979         //   |eorg + t * evel| == t * spd
 980         //   eorg^2 + t^2 * evel^2 + 2 * t * (eorg * evel) == t^2 * spd^2
 981         //   t^2 * (evel^2 - spd^2) + t * (2 * (eorg * evel)) + eorg^2 == 0
 982         vector solution = solve_quadratic(evel * evel - spd * spd, 2 * (eorg * evel), eorg * eorg);
 983         // p = 2 * (eorg * evel) / (evel * evel - spd * spd)
 984         // q = (eorg * eorg) / (evel * evel - spd * spd)
 985         if(!solution.z) // no real solution
 986         {
 987                 // happens if D < 0
 988                 // (eorg * evel)^2 < (evel^2 - spd^2) * eorg^2
 989                 // (eorg * evel)^2 / eorg^2 < evel^2 - spd^2
 990                 // spd^2 < ((evel^2 * eorg^2) - (eorg * evel)^2) / eorg^2
 991                 // spd^2 < evel^2 * (1 - cos^2 angle(evel, eorg))
 992                 // spd^2 < evel^2 * sin^2 angle(evel, eorg)
 993                 // spd < |evel| * sin angle(evel, eorg)
 994                 return '0 0 0';
 995         }
 996         else if(solution.x > 0)
 997         {
 998                 // both solutions > 0: take the smaller one
 999                 // happens if p < 0 and q > 0
1000                 ret = normalize(eorg + solution.x * evel);
1001         }
1002         else if(solution.y > 0)
1003         {
1004                 // one solution > 0: take the larger one
1005                 // happens if q < 0 or q == 0 and p < 0
1006                 ret = normalize(eorg + solution.y * evel);
1007         }
1008         else
1009         {
1010                 // no solution > 0: reject
1011                 // happens if p > 0 and q >= 0
1012                 // 2 * (eorg * evel) / (evel * evel - spd * spd) > 0
1013                 // (eorg * eorg) / (evel * evel - spd * spd) >= 0
1014                 //
1015                 // |evel| >= spd
1016                 // eorg * evel > 0
1017                 //
1018                 // "Enemy is moving away from me at more than spd"
1019                 return '0 0 0';
1020         }
1021
1022         // NOTE: we always got a solution if spd > |evel|
1023
1024         if(newton_style == 2)
1025                 ret = normalize(ret * spd + myvel);
1026
1027         return ret;
1028 }
1029
1030 vector get_shotvelocity(vector myvel, vector mydir, float spd, float newton_style, float mi, float ma)
1031 {
1032         if(!newton_style)
1033                 return spd * mydir;
1034
1035         if(newton_style == 2)
1036         {
1037                 // true Newtonian projectiles with automatic aim adjustment
1038                 //
1039                 // solve: |outspeed * mydir - myvel| = spd
1040                 // outspeed^2 - 2 * outspeed * (mydir * myvel) + myvel^2 - spd^2 = 0
1041                 // outspeed = (mydir * myvel) +- sqrt((mydir * myvel)^2 - myvel^2 + spd^2)
1042                 // PLUS SIGN!
1043                 // not defined?
1044                 // then...
1045                 // myvel^2 - (mydir * myvel)^2 > spd^2
1046                 // velocity without mydir component > spd
1047                 // fire at smallest possible spd that works?
1048                 // |(mydir * myvel) * myvel - myvel| = spd
1049
1050                 vector solution = solve_quadratic(1, -2 * (mydir * myvel), myvel * myvel - spd * spd);
1051
1052                 float outspeed;
1053                 if(solution.z)
1054                         outspeed = solution.y; // the larger one
1055                 else
1056                 {
1057                         //outspeed = 0; // slowest possible shot
1058                         outspeed = solution.x; // the real part (that is, the average!)
1059                         //dprint("impossible shot, adjusting\n");
1060                 }
1061
1062                 outspeed = bound(spd * mi, outspeed, spd * ma);
1063                 return mydir * outspeed;
1064         }
1065
1066         // real Newtonian
1067         return myvel + spd * mydir;
1068 }
1069
1070 float compressShotOrigin(vector v)
1071 {
1072         float rx = rint(v.x * 2);
1073         float ry = rint(v.y * 4) + 128;
1074         float rz = rint(v.z * 4) + 128;
1075         if(rx > 255 || rx < 0)
1076         {
1077                 LOG_DEBUG("shot origin ", vtos(v), " x out of bounds\n");
1078                 rx = bound(0, rx, 255);
1079         }
1080         if(ry > 255 || ry < 0)
1081         {
1082                 LOG_DEBUG("shot origin ", vtos(v), " y out of bounds\n");
1083                 ry = bound(0, ry, 255);
1084         }
1085         if(rz > 255 || rz < 0)
1086         {
1087                 LOG_DEBUG("shot origin ", vtos(v), " z out of bounds\n");
1088                 rz = bound(0, rz, 255);
1089         }
1090         return rx * 0x10000 + ry * 0x100 + rz;
1091 }
1092 vector decompressShotOrigin(int f)
1093 {
1094         vector v;
1095         v.x = ((f & 0xFF0000) / 0x10000) / 2;
1096         v.y = ((f & 0xFF00) / 0x100 - 128) / 4;
1097         v.z = ((f & 0xFF) - 128) / 4;
1098         return v;
1099 }
1100
1101 #ifdef GAMEQC
1102 vector healtharmor_maxdamage(float h, float a, float armorblock, int deathtype)
1103 {
1104         // NOTE: we'll always choose the SMALLER value...
1105         float healthdamage, armordamage, armorideal;
1106         if (DEATH_IS(deathtype, DEATH_DROWN))  // Why should armor help here...
1107                 armorblock = 0;
1108         vector v;
1109         healthdamage = (h - 1) / (1 - armorblock); // damage we can take if we could use more health
1110         armordamage = a + (h - 1); // damage we can take if we could use more armor
1111         armorideal = healthdamage * armorblock;
1112         v.y = armorideal;
1113         if(armordamage < healthdamage)
1114         {
1115                 v.x = armordamage;
1116                 v.z = 1;
1117         }
1118         else
1119         {
1120                 v.x = healthdamage;
1121                 v.z = 0;
1122         }
1123         return v;
1124 }
1125
1126 vector healtharmor_applydamage(float a, float armorblock, int deathtype, float damage)
1127 {
1128         vector v;
1129         if (DEATH_IS(deathtype, DEATH_DROWN))  // Why should armor help here...
1130                 armorblock = 0;
1131         v.y = bound(0, damage * armorblock, a); // save
1132         v.x = bound(0, damage - v.y, damage); // take
1133         v.z = 0;
1134         return v;
1135 }
1136 #endif
1137
1138 string getcurrentmod()
1139 {
1140         float n;
1141         string m;
1142         m = cvar_string("fs_gamedir");
1143         n = tokenize_console(m);
1144         if(n == 0)
1145                 return "data";
1146         else
1147                 return argv(n - 1);
1148 }
1149
1150 float matchacl(string acl, string str)
1151 {
1152         string t, s;
1153         float r, d;
1154         r = 0;
1155         while(acl)
1156         {
1157                 t = car(acl); acl = cdr(acl);
1158
1159                 d = 1;
1160                 if(substring(t, 0, 1) == "-")
1161                 {
1162                         d = -1;
1163                         t = substring(t, 1, strlen(t) - 1);
1164                 }
1165                 else if(substring(t, 0, 1) == "+")
1166                         t = substring(t, 1, strlen(t) - 1);
1167
1168                 if(substring(t, -1, 1) == "*")
1169                 {
1170                         t = substring(t, 0, strlen(t) - 1);
1171                         s = substring(str, 0, strlen(t));
1172                 }
1173                 else
1174                         s = str;
1175
1176                 if(s == t)
1177                 {
1178                         r = d;
1179                 }
1180         }
1181         return r;
1182 }
1183
1184 string get_model_datafilename(string m, float sk, string fil)
1185 {
1186         if(m)
1187                 m = strcat(m, "_");
1188         else
1189                 m = "models/player/*_";
1190         if(sk >= 0)
1191                 m = strcat(m, ftos(sk));
1192         else
1193                 m = strcat(m, "*");
1194         return strcat(m, ".", fil);
1195 }
1196
1197 float get_model_parameters(string m, float sk)
1198 {
1199         get_model_parameters_modelname = string_null;
1200         get_model_parameters_modelskin = -1;
1201         get_model_parameters_name = string_null;
1202         get_model_parameters_species = -1;
1203         get_model_parameters_sex = string_null;
1204         get_model_parameters_weight = -1;
1205         get_model_parameters_age = -1;
1206         get_model_parameters_desc = string_null;
1207         get_model_parameters_bone_upperbody = string_null;
1208         get_model_parameters_bone_weapon = string_null;
1209         for(int i = 0; i < MAX_AIM_BONES; ++i)
1210         {
1211                 get_model_parameters_bone_aim[i] = string_null;
1212                 get_model_parameters_bone_aimweight[i] = 0;
1213         }
1214         get_model_parameters_fixbone = 0;
1215         get_model_parameters_hidden = false;
1216
1217 #ifdef GAMEQC
1218         MUTATOR_CALLHOOK(ClearModelParams);
1219 #endif
1220
1221         if (!m)
1222                 return 1;
1223
1224         if(substring(m, -9, 5) == "_lod1" || substring(m, -9, 5) == "_lod2")
1225                 m = strcat(substring(m, 0, -10), substring(m, -4, -1));
1226
1227         if(sk < 0)
1228         {
1229                 if(substring(m, -4, -1) != ".txt")
1230                         return 0;
1231                 if(substring(m, -6, 1) != "_")
1232                         return 0;
1233                 sk = stof(substring(m, -5, 1));
1234                 m = substring(m, 0, -7);
1235         }
1236
1237         string fn = get_model_datafilename(m, sk, "txt");
1238         int fh = fopen(fn, FILE_READ);
1239         if(fh < 0)
1240         {
1241                 sk = 0;
1242                 fn = get_model_datafilename(m, sk, "txt");
1243                 fh = fopen(fn, FILE_READ);
1244                 if(fh < 0)
1245                         return 0;
1246         }
1247
1248         get_model_parameters_modelname = m;
1249         get_model_parameters_modelskin = sk;
1250         string s, c;
1251         while((s = fgets(fh)))
1252         {
1253                 if(s == "")
1254                         break; // next lines will be description
1255                 c = car(s);
1256                 s = cdr(s);
1257                 if(c == "name")
1258                         get_model_parameters_name = s;
1259                 if(c == "species")
1260                         switch(s)
1261                         {
1262                                 case "human":       get_model_parameters_species = SPECIES_HUMAN;       break;
1263                                 case "alien":       get_model_parameters_species = SPECIES_ALIEN;       break;
1264                                 case "robot_shiny": get_model_parameters_species = SPECIES_ROBOT_SHINY; break;
1265                                 case "robot_rusty": get_model_parameters_species = SPECIES_ROBOT_RUSTY; break;
1266                                 case "robot_solid": get_model_parameters_species = SPECIES_ROBOT_SOLID; break;
1267                                 case "animal":      get_model_parameters_species = SPECIES_ANIMAL;      break;
1268                                 case "reserved":    get_model_parameters_species = SPECIES_RESERVED;    break;
1269                         }
1270                 if(c == "sex")
1271                         get_model_parameters_sex = s;
1272                 if(c == "weight")
1273                         get_model_parameters_weight = stof(s);
1274                 if(c == "age")
1275                         get_model_parameters_age = stof(s);
1276                 if(c == "description")
1277                         get_model_parameters_description = s;
1278                 if(c == "bone_upperbody")
1279                         get_model_parameters_bone_upperbody = s;
1280                 if(c == "bone_weapon")
1281                         get_model_parameters_bone_weapon = s;
1282         #ifdef GAMEQC
1283                 MUTATOR_CALLHOOK(GetModelParams, c, s);
1284         #endif
1285                 for(int i = 0; i < MAX_AIM_BONES; ++i)
1286                         if(c == strcat("bone_aim", ftos(i)))
1287                         {
1288                                 get_model_parameters_bone_aimweight[i] = stof(car(s));
1289                                 get_model_parameters_bone_aim[i] = cdr(s);
1290                         }
1291                 if(c == "fixbone")
1292                         get_model_parameters_fixbone = stof(s);
1293                 if(c == "hidden")
1294                         get_model_parameters_hidden = stob(s);
1295         }
1296
1297         while((s = fgets(fh)))
1298         {
1299                 if(get_model_parameters_desc)
1300                         get_model_parameters_desc = strcat(get_model_parameters_desc, "\n");
1301                 if(s != "")
1302                         get_model_parameters_desc = strcat(get_model_parameters_desc, s);
1303         }
1304
1305         fclose(fh);
1306
1307         return 1;
1308 }
1309
1310 // x-encoding (encoding as zero length invisible string)
1311 const string XENCODE_2  = "xX";
1312 const string XENCODE_22 = "0123456789abcdefABCDEF";
1313 string xencode(int f)
1314 {
1315         float a, b, c, d;
1316         d = f % 22; f = floor(f / 22);
1317         c = f % 22; f = floor(f / 22);
1318         b = f % 22; f = floor(f / 22);
1319         a = f %  2; // f = floor(f /  2);
1320         return strcat(
1321                 "^",
1322                 substring(XENCODE_2,  a, 1),
1323                 substring(XENCODE_22, b, 1),
1324                 substring(XENCODE_22, c, 1),
1325                 substring(XENCODE_22, d, 1)
1326         );
1327 }
1328 float xdecode(string s)
1329 {
1330         float a, b, c, d;
1331         if(substring(s, 0, 1) != "^")
1332                 return -1;
1333         if(strlen(s) < 5)
1334                 return -1;
1335         a = strstrofs(XENCODE_2,  substring(s, 1, 1), 0);
1336         b = strstrofs(XENCODE_22, substring(s, 2, 1), 0);
1337         c = strstrofs(XENCODE_22, substring(s, 3, 1), 0);
1338         d = strstrofs(XENCODE_22, substring(s, 4, 1), 0);
1339         if(a < 0 || b < 0 || c < 0 || d < 0)
1340                 return -1;
1341         return ((a * 22 + b) * 22 + c) * 22 + d;
1342 }
1343
1344 /*
1345 string strlimitedlen(string input, string truncation, float strip_colors, float limit)
1346 {
1347         if(strlen((strip_colors ? strdecolorize(input) : input)) <= limit)
1348                 return input;
1349         else
1350                 return strcat(substring(input, 0, (strlen(input) - strlen(truncation))), truncation);
1351 }*/
1352
1353 float shutdown_running;
1354 #ifdef SVQC
1355 void SV_Shutdown()
1356 #endif
1357 #ifdef CSQC
1358 void CSQC_Shutdown()
1359 #endif
1360 #ifdef MENUQC
1361 void m_shutdown()
1362 #endif
1363 {
1364         if(shutdown_running)
1365         {
1366                 LOG_INFO("Recursive shutdown detected! Only restoring cvars...\n");
1367         }
1368         else
1369         {
1370                 shutdown_running = 1;
1371                 Shutdown();
1372                 shutdownhooks();
1373         }
1374         cvar_settemp_restore(); // this must be done LAST, but in any case
1375 }
1376
1377 #ifdef GAMEQC
1378 .float skeleton_bones_index;
1379 void Skeleton_SetBones(entity e)
1380 {
1381         // set skeleton_bones to the total number of bones on the model
1382         if(e.skeleton_bones_index == e.modelindex)
1383                 return; // same model, nothing to update
1384
1385         float skelindex;
1386         skelindex = skel_create(e.modelindex);
1387         e.skeleton_bones = skel_get_numbones(skelindex);
1388         skel_delete(skelindex);
1389         e.skeleton_bones_index = e.modelindex;
1390 }
1391 #endif
1392
1393 string to_execute_next_frame;
1394 void execute_next_frame()
1395 {
1396         if(to_execute_next_frame)
1397         {
1398                 localcmd("\n", to_execute_next_frame, "\n");
1399                 strunzone(to_execute_next_frame);
1400                 to_execute_next_frame = string_null;
1401         }
1402 }
1403 void queue_to_execute_next_frame(string s)
1404 {
1405         if(to_execute_next_frame)
1406         {
1407                 s = strcat(s, "\n", to_execute_next_frame);
1408                 strunzone(to_execute_next_frame);
1409         }
1410         to_execute_next_frame = strzone(s);
1411 }
1412
1413 .float FindConnectedComponent_processing;
1414 void FindConnectedComponent(entity e, .entity fld, findNextEntityNearFunction_t nxt, isConnectedFunction_t iscon, entity pass)
1415 {
1416         entity queue_start, queue_end;
1417
1418         // we build a queue of to-be-processed entities.
1419         // queue_start is the next entity to be checked for neighbors
1420         // queue_end is the last entity added
1421
1422         if(e.FindConnectedComponent_processing)
1423                 error("recursion or broken cleanup");
1424
1425         // start with a 1-element queue
1426         queue_start = queue_end = e;
1427         queue_end.(fld) = NULL;
1428         queue_end.FindConnectedComponent_processing = 1;
1429
1430         // for each queued item:
1431         for (; queue_start; queue_start = queue_start.(fld))
1432         {
1433                 // find all neighbors of queue_start
1434                 entity t;
1435                 for(t = NULL; (t = nxt(t, queue_start, pass)); )
1436                 {
1437                         if(t.FindConnectedComponent_processing)
1438                                 continue;
1439                         if(iscon(t, queue_start, pass))
1440                         {
1441                                 // it is connected? ADD IT. It will look for neighbors soon too.
1442                                 queue_end.(fld) = t;
1443                                 queue_end = t;
1444                                 queue_end.(fld) = NULL;
1445                                 queue_end.FindConnectedComponent_processing = 1;
1446                         }
1447                 }
1448         }
1449
1450         // unmark
1451         for (queue_start = e; queue_start; queue_start = queue_start.(fld))
1452                 queue_start.FindConnectedComponent_processing = 0;
1453 }
1454
1455 #ifdef GAMEQC
1456 vector animfixfps(entity e, vector a, vector b)
1457 {
1458         // multi-frame anim: keep as-is
1459         if(a.y == 1)
1460         {
1461                 float dur = frameduration(e.modelindex, a.x);
1462                 if (dur <= 0 && b.y)
1463                 {
1464                         a = b;
1465                         dur = frameduration(e.modelindex, a.x);
1466                 }
1467                 if (dur > 0)
1468                         a.z = 1.0 / dur;
1469         }
1470         return a;
1471 }
1472 #endif
1473
1474 #ifdef GAMEQC
1475 Notification Announcer_PickNumber(int type, int num)
1476 {
1477     return = NULL;
1478         switch (type)
1479         {
1480                 case CNT_GAMESTART:
1481                 {
1482                         switch(num)
1483                         {
1484                                 case 10: return ANNCE_NUM_GAMESTART_10;
1485                                 case 9:  return ANNCE_NUM_GAMESTART_9;
1486                                 case 8:  return ANNCE_NUM_GAMESTART_8;
1487                                 case 7:  return ANNCE_NUM_GAMESTART_7;
1488                                 case 6:  return ANNCE_NUM_GAMESTART_6;
1489                                 case 5:  return ANNCE_NUM_GAMESTART_5;
1490                                 case 4:  return ANNCE_NUM_GAMESTART_4;
1491                                 case 3:  return ANNCE_NUM_GAMESTART_3;
1492                                 case 2:  return ANNCE_NUM_GAMESTART_2;
1493                                 case 1:  return ANNCE_NUM_GAMESTART_1;
1494                         }
1495                         break;
1496                 }
1497                 case CNT_IDLE:
1498                 {
1499                         switch(num)
1500                         {
1501                                 case 10: return ANNCE_NUM_IDLE_10;
1502                                 case 9:  return ANNCE_NUM_IDLE_9;
1503                                 case 8:  return ANNCE_NUM_IDLE_8;
1504                                 case 7:  return ANNCE_NUM_IDLE_7;
1505                                 case 6:  return ANNCE_NUM_IDLE_6;
1506                                 case 5:  return ANNCE_NUM_IDLE_5;
1507                                 case 4:  return ANNCE_NUM_IDLE_4;
1508                                 case 3:  return ANNCE_NUM_IDLE_3;
1509                                 case 2:  return ANNCE_NUM_IDLE_2;
1510                                 case 1:  return ANNCE_NUM_IDLE_1;
1511                         }
1512                         break;
1513                 }
1514                 case CNT_KILL:
1515                 {
1516                         switch(num)
1517                         {
1518                                 case 10: return ANNCE_NUM_KILL_10;
1519                                 case 9:  return ANNCE_NUM_KILL_9;
1520                                 case 8:  return ANNCE_NUM_KILL_8;
1521                                 case 7:  return ANNCE_NUM_KILL_7;
1522                                 case 6:  return ANNCE_NUM_KILL_6;
1523                                 case 5:  return ANNCE_NUM_KILL_5;
1524                                 case 4:  return ANNCE_NUM_KILL_4;
1525                                 case 3:  return ANNCE_NUM_KILL_3;
1526                                 case 2:  return ANNCE_NUM_KILL_2;
1527                                 case 1:  return ANNCE_NUM_KILL_1;
1528                         }
1529                         break;
1530                 }
1531                 case CNT_RESPAWN:
1532                 {
1533                         switch(num)
1534                         {
1535                                 case 10: return ANNCE_NUM_RESPAWN_10;
1536                                 case 9:  return ANNCE_NUM_RESPAWN_9;
1537                                 case 8:  return ANNCE_NUM_RESPAWN_8;
1538                                 case 7:  return ANNCE_NUM_RESPAWN_7;
1539                                 case 6:  return ANNCE_NUM_RESPAWN_6;
1540                                 case 5:  return ANNCE_NUM_RESPAWN_5;
1541                                 case 4:  return ANNCE_NUM_RESPAWN_4;
1542                                 case 3:  return ANNCE_NUM_RESPAWN_3;
1543                                 case 2:  return ANNCE_NUM_RESPAWN_2;
1544                                 case 1:  return ANNCE_NUM_RESPAWN_1;
1545                         }
1546                         break;
1547                 }
1548                 case CNT_ROUNDSTART:
1549                 {
1550                         switch(num)
1551                         {
1552                                 case 10: return ANNCE_NUM_ROUNDSTART_10;
1553                                 case 9:  return ANNCE_NUM_ROUNDSTART_9;
1554                                 case 8:  return ANNCE_NUM_ROUNDSTART_8;
1555                                 case 7:  return ANNCE_NUM_ROUNDSTART_7;
1556                                 case 6:  return ANNCE_NUM_ROUNDSTART_6;
1557                                 case 5:  return ANNCE_NUM_ROUNDSTART_5;
1558                                 case 4:  return ANNCE_NUM_ROUNDSTART_4;
1559                                 case 3:  return ANNCE_NUM_ROUNDSTART_3;
1560                                 case 2:  return ANNCE_NUM_ROUNDSTART_2;
1561                                 case 1:  return ANNCE_NUM_ROUNDSTART_1;
1562                         }
1563                         break;
1564                 }
1565                 default:
1566                 {
1567                         switch(num)
1568                         {
1569                                 case 10: return ANNCE_NUM_10;
1570                                 case 9:  return ANNCE_NUM_9;
1571                                 case 8:  return ANNCE_NUM_8;
1572                                 case 7:  return ANNCE_NUM_7;
1573                                 case 6:  return ANNCE_NUM_6;
1574                                 case 5:  return ANNCE_NUM_5;
1575                                 case 4:  return ANNCE_NUM_4;
1576                                 case 3:  return ANNCE_NUM_3;
1577                                 case 2:  return ANNCE_NUM_2;
1578                                 case 1:  return ANNCE_NUM_1;
1579                         }
1580                         break;
1581                 }
1582         }
1583 }
1584 #endif
1585
1586 #ifdef GAMEQC
1587 int Mod_Q1BSP_SuperContentsFromNativeContents(int nativecontents)
1588 {
1589         switch(nativecontents)
1590         {
1591                 case CONTENT_EMPTY:
1592                         return 0;
1593                 case CONTENT_SOLID:
1594                         return DPCONTENTS_SOLID | DPCONTENTS_OPAQUE;
1595                 case CONTENT_WATER:
1596                         return DPCONTENTS_WATER;
1597                 case CONTENT_SLIME:
1598                         return DPCONTENTS_SLIME;
1599                 case CONTENT_LAVA:
1600                         return DPCONTENTS_LAVA | DPCONTENTS_NODROP;
1601                 case CONTENT_SKY:
1602                         return DPCONTENTS_SKY | DPCONTENTS_NODROP | DPCONTENTS_OPAQUE; // to match behaviour of Q3 maps, let sky count as opaque
1603         }
1604         return 0;
1605 }
1606
1607 int Mod_Q1BSP_NativeContentsFromSuperContents(int supercontents)
1608 {
1609         if(supercontents & (DPCONTENTS_SOLID | DPCONTENTS_BODY))
1610                 return CONTENT_SOLID;
1611         if(supercontents & DPCONTENTS_SKY)
1612                 return CONTENT_SKY;
1613         if(supercontents & DPCONTENTS_LAVA)
1614                 return CONTENT_LAVA;
1615         if(supercontents & DPCONTENTS_SLIME)
1616                 return CONTENT_SLIME;
1617         if(supercontents & DPCONTENTS_WATER)
1618                 return CONTENT_WATER;
1619         return CONTENT_EMPTY;
1620 }
1621 #endif