qcsrc/warpzonelib/server.qc

   1 #include "server.qh"
   2
   3 #include "common.qh"
   4 #if defined(CSQC)
   5 #elif defined(MENUQC)
   6 #elif defined(SVQC)
   7         #include "../common/constants.qh"
   8         #include "../common/triggers/subs.qh"
   9         #include "../common/util.qh"
  10         #include "../dpdefs/dpextensions.qh"
  11         #include "../dpdefs/progsdefs.qh"
  12         #include "../server/command/common.qh"
  13         #include "../server/constants.qh"
  14         #include "../server/defs.qh"
  15 #endif
  16
  17 #ifdef WARPZONELIB_KEEPDEBUG
  18 #define WARPZONELIB_REMOVEHACK
  19 #endif
  20
  21 // for think function
  22 .vector warpzone_save_origin;
  23 .vector warpzone_save_angles;
  24 .vector warpzone_save_eorigin;
  25 .vector warpzone_save_eangles;
  26
  27 // for all entities
  28 .vector warpzone_oldorigin, warpzone_oldvelocity, warpzone_oldangles;
  29 .float warpzone_teleport_time;
  30 .float warpzone_teleport_finishtime;
  31 .entity warpzone_teleport_zone;
  32
  33 void WarpZone_StoreProjectileData(entity e)
  34 {
  35         e.warpzone_oldorigin = e.origin;
  36         e.warpzone_oldvelocity = e.velocity;
  37         e.warpzone_oldangles = e.angles;
  38 }
  39
  40 void WarpZone_TeleportPlayer(entity teleporter, entity player, vector to, vector to_angles, vector to_velocity)
  41 {
  42         setorigin (player, to); // NOTE: this also aborts the move, when this is called by touch
  43         player.oldorigin = to; // for DP's unsticking
  44         player.angles = to_angles;
  45         player.fixangle = true;
  46         player.velocity = to_velocity;
  47
  48         BITXOR_ASSIGN(player.effects, EF_TELEPORT_BIT);
  49
  50         if(IS_PLAYER(player))
  51                 BITCLR_ASSIGN(player.flags, FL_ONGROUND);
  52
  53         WarpZone_PostTeleportPlayer_Callback(player);
  54 }
  55
  56 bool WarpZone_Teleported_Send(entity to, int sf)
  57 {
  58         WriteByte(MSG_ENTITY, ENT_CLIENT_WARPZONE_TELEPORTED);
  59         WriteCoord(MSG_ENTITY, self.angles.x);
  60         WriteCoord(MSG_ENTITY, self.angles.y);
  61         WriteCoord(MSG_ENTITY, self.angles.z);
  62         return true;
  63 }
  64
  65 float WarpZone_Teleport(entity wz, entity player, float f0, float f1)
  66 {
  67         vector o0, a0, v0, o1, a1, v1, o10;
  68
  69         o0 = player.origin + player.view_ofs;
  70         v0 = player.velocity;
  71         a0 = player.angles;
  72
  73         o10 = o1 = WarpZone_TransformOrigin(wz, o0);
  74         v1 = WarpZone_TransformVelocity(wz, v0);
  75         if (!IS_NOT_A_CLIENT(player))
  76                 a1 = WarpZone_TransformVAngles(wz, player.v_angle);
  77         else
  78                 a1 = WarpZone_TransformAngles(wz, a0);
  79
  80         if(f0 != 0 || f1 != 0)
  81         {
  82                 // retry last move but behind the warpzone!
  83                 // we must first go back as far as we can, then forward again, to not cause double touch events!
  84
  85                 tracebox(o1 - player.view_ofs + v1 * frametime * f1, player.mins, player.maxs, o1 - player.view_ofs + v1 * frametime * f0, MOVE_WORLDONLY, player);
  86                 {
  87                         entity own;
  88                         own = player.owner;
  89                         player.owner = world;
  90                         tracebox(trace_endpos, player.mins, player.maxs, o1 - player.view_ofs + v1 * frametime * f1, MOVE_NORMAL, player); // this should get us through the warpzone
  91                         player.owner = own;
  92                 }
  93                 o1 = trace_endpos + player.view_ofs;
  94
  95                 float d, dv, md;
  96                 md = max(vlen(player.mins), vlen(player.maxs));
  97                 d = WarpZone_TargetPlaneDist(wz, o1);
  98                 dv = WarpZone_TargetPlaneDist(wz, v1);
  99                 if(d < 0)
 100                         o1 = o1 - v1 * (d / dv);
 101         }
 102
 103         // put him out of solid
 104         tracebox(o1 - player.view_ofs, player.mins, player.maxs, o1 - player.view_ofs, MOVE_NOMONSTERS, player);
 105         if(trace_startsolid)
 106         {
 107                 setorigin(player, o1 - player.view_ofs);
 108                 if(WarpZoneLib_MoveOutOfSolid(player))
 109                 {
 110                         o1 = player.origin + player.view_ofs;
 111                         setorigin(player, o0 - player.view_ofs);
 112                 }
 113                 else
 114                 {
 115                         print("would have to put player in solid, won't do that\n");
 116                         setorigin(player, o0 - player.view_ofs);
 117                         return 0;
 118                 }
 119         }
 120
 121         // do the teleport
 122         WarpZone_RefSys_Add(player, wz);
 123         WarpZone_TeleportPlayer(wz, player, o1 - player.view_ofs, a1, v1);
 124         WarpZone_StoreProjectileData(player);
 125         player.warpzone_teleport_time = time;
 126         player.warpzone_teleport_finishtime = time;
 127         player.warpzone_teleport_zone = wz;
 128
 129         // prevent further teleports back
 130         float dt = (o1 - o10) * v1 * (1 / (v1 * v1));
 131         if(dt < sys_frametime)
 132                 player.warpzone_teleport_finishtime += sys_frametime - dt;
 133
 134 #ifndef WARPZONE_USE_FIXANGLE
 135         if(IS_VEHICLE(player) && player.owner)
 136                 player = player.owner; // hax
 137         if(IS_PLAYER(player))
 138         {
 139                 // instead of fixangle, send the transform to the client for smoother operation
 140                 player.fixangle = false;
 141
 142                 entity ts = spawn();
 143                 setmodel(ts, "null");
 144                 ts.SendEntity = WarpZone_Teleported_Send;
 145                 ts.SendFlags = 0xFFFFFF;
 146                 ts.drawonlytoclient = player;
 147                 ts.think = SUB_Remove;
 148                 ts.nextthink = time + 1;
 149                 ts.owner = player;
 150                 ts.enemy = wz;
 151                 ts.effects = EF_NODEPTHTEST;
 152                 ts.classname = "warpzone_teleported";
 153                 ts.angles = wz.warpzone_transform;
 154         }
 155 #endif
 156
 157         return 1;
 158 }
 159
 160 void WarpZone_Touch (void)
 161 {
 162         entity oldself;
 163
 164         if(other.classname == "trigger_warpzone")
 165                 return;
 166
 167         if(time <= other.warpzone_teleport_finishtime) // already teleported this frame
 168                 return;
 169
 170         // FIXME needs a better check to know what is safe to teleport and what not
 171         if(other.movetype == MOVETYPE_NONE || other.movetype == MOVETYPE_FOLLOW || other.tag_entity)
 172                 return;
 173
 174         if(WarpZoneLib_ExactTrigger_Touch())
 175                 return;
 176
 177         if(WarpZone_PlaneDist(self, other.origin + other.view_ofs) >= 0) // wrong side of the trigger_warpzone (don't teleport yet)
 178                 return;
 179
 180         float f;
 181         // number of frames we need to go back:
 182         //   dist = 16*sqrt(2) qu
 183         //   dist ~ 24 qu
 184         //   24 qu = v*t
 185         //   24 qu = v*frametime*n
 186         //       n = 24 qu/(v*frametime)
 187         // for clients go only one frame though, may be too irritating otherwise
 188         // but max 0.25 sec = 0.25/frametime frames
 189         //       24/(0.25/frametime)
 190         //       96*frametime
 191         float d;
 192         d = 24 + max(vlen(other.mins), vlen(other.maxs));
 193         if(IS_NOT_A_CLIENT(other))
 194                 f = -d / bound(frametime * d * 1, frametime * vlen(other.velocity), d);
 195         else
 196                 f = -1;
 197         if(WarpZone_Teleport(self, other, f, 0))
 198         {
 199                 string save1, save2;
 200                 activator = other;
 201
 202                 save1 = self.target; self.target = string_null;
 203                 save2 = self.target3; self.target3 = string_null;
 204                 SUB_UseTargets();
 205                 if (!self.target) self.target = save1;
 206                 if (!self.target3) self.target3 = save2;
 207
 208                 oldself = self;
 209                 self = self.enemy;
 210                 save1 = self.target; self.target = string_null;
 211                 save2 = self.target2; self.target2 = string_null;
 212                 SUB_UseTargets();
 213                 if (!self.target) self.target = save1;
 214                 if (!self.target2) self.target2 = save2;
 215                 self = oldself;
 216         }
 217         else
 218         {
 219                 dprint("WARPZONE FAIL AHAHAHAHAH))\n");
 220         }
 221 }
 222
 223 bool WarpZone_Send(entity to, int sendflags)
 224 {
 225         WriteByte(MSG_ENTITY, ENT_CLIENT_WARPZONE);
 226
 227         // we must send this flag for clientside to match properly too
 228         int f = 0;
 229         if(self.warpzone_isboxy)
 230                 BITSET_ASSIGN(f, 1);
 231         if(self.warpzone_fadestart)
 232                 BITSET_ASSIGN(f, 2);
 233         if(self.origin != '0 0 0')
 234                 BITSET_ASSIGN(f, 4);
 235         WriteByte(MSG_ENTITY, f);
 236
 237         // we need THESE to render the warpzone (and cull properly)...
 238         if(f & 4)
 239         {
 240                 WriteCoord(MSG_ENTITY, self.origin.x);
 241                 WriteCoord(MSG_ENTITY, self.origin.y);
 242                 WriteCoord(MSG_ENTITY, self.origin.z);
 243         }
 244
 245         WriteShort(MSG_ENTITY, self.modelindex);
 246         WriteCoord(MSG_ENTITY, self.mins.x);
 247         WriteCoord(MSG_ENTITY, self.mins.y);
 248         WriteCoord(MSG_ENTITY, self.mins.z);
 249         WriteCoord(MSG_ENTITY, self.maxs.x);
 250         WriteCoord(MSG_ENTITY, self.maxs.y);
 251         WriteCoord(MSG_ENTITY, self.maxs.z);
 252         WriteByte(MSG_ENTITY, bound(1, self.scale * 16, 255));
 253
 254         // we need THESE to calculate the proper transform
 255         WriteCoord(MSG_ENTITY, self.warpzone_origin.x);
 256         WriteCoord(MSG_ENTITY, self.warpzone_origin.y);
 257         WriteCoord(MSG_ENTITY, self.warpzone_origin.z);
 258         WriteCoord(MSG_ENTITY, self.warpzone_angles.x);
 259         WriteCoord(MSG_ENTITY, self.warpzone_angles.y);
 260         WriteCoord(MSG_ENTITY, self.warpzone_angles.z);
 261         WriteCoord(MSG_ENTITY, self.warpzone_targetorigin.x);
 262         WriteCoord(MSG_ENTITY, self.warpzone_targetorigin.y);
 263         WriteCoord(MSG_ENTITY, self.warpzone_targetorigin.z);
 264         WriteCoord(MSG_ENTITY, self.warpzone_targetangles.x);
 265         WriteCoord(MSG_ENTITY, self.warpzone_targetangles.y);
 266         WriteCoord(MSG_ENTITY, self.warpzone_targetangles.z);
 267
 268         if(f & 2)
 269         {
 270                 WriteShort(MSG_ENTITY, self.warpzone_fadestart);
 271                 WriteShort(MSG_ENTITY, self.warpzone_fadeend);
 272         }
 273
 274         return true;
 275 }
 276
 277 bool WarpZone_Camera_Send(entity to, int sendflags)
 278 {
 279         int f = 0;
 280         WriteByte(MSG_ENTITY, ENT_CLIENT_WARPZONE_CAMERA);
 281
 282         if(self.warpzone_fadestart)
 283                 BITSET_ASSIGN(f, 2);
 284         if(self.origin != '0 0 0')
 285                 BITSET_ASSIGN(f, 4);
 286         WriteByte(MSG_ENTITY, f);
 287
 288         // we need THESE to render the warpzone (and cull properly)...
 289         if(f & 4)
 290         {
 291                 WriteCoord(MSG_ENTITY, self.origin.x);
 292                 WriteCoord(MSG_ENTITY, self.origin.y);
 293                 WriteCoord(MSG_ENTITY, self.origin.z);
 294         }
 295
 296         WriteShort(MSG_ENTITY, self.modelindex);
 297         WriteCoord(MSG_ENTITY, self.mins.x);
 298         WriteCoord(MSG_ENTITY, self.mins.y);
 299         WriteCoord(MSG_ENTITY, self.mins.z);
 300         WriteCoord(MSG_ENTITY, self.maxs.x);
 301         WriteCoord(MSG_ENTITY, self.maxs.y);
 302         WriteCoord(MSG_ENTITY, self.maxs.z);
 303         WriteByte(MSG_ENTITY, bound(1, self.scale * 16, 255));
 304
 305         // we need THESE to calculate the proper transform
 306         WriteCoord(MSG_ENTITY, self.enemy.origin.x);
 307         WriteCoord(MSG_ENTITY, self.enemy.origin.y);
 308         WriteCoord(MSG_ENTITY, self.enemy.origin.z);
 309         WriteCoord(MSG_ENTITY, self.enemy.angles.x);
 310         WriteCoord(MSG_ENTITY, self.enemy.angles.y);
 311         WriteCoord(MSG_ENTITY, self.enemy.angles.z);
 312
 313         if(f & 2)
 314         {
 315                 WriteShort(MSG_ENTITY, self.warpzone_fadestart);
 316                 WriteShort(MSG_ENTITY, self.warpzone_fadeend);
 317         }
 318
 319         return true;
 320 }
 321
 322 #ifdef WARPZONELIB_KEEPDEBUG
 323 float WarpZone_CheckProjectileImpact(entity player)
 324 {
 325         vector o0, v0;
 326
 327         o0 = player.origin + player.view_ofs;
 328         v0 = player.velocity;
 329
 330         // if we teleported shortly before, abort
 331         if(time <= player.warpzone_teleport_finishtime + 0.1)
 332                 return 0;
 333
 334         // if player hit a warpzone, abort
 335         entity wz;
 336         wz = WarpZone_Find(o0 + player.mins, o0 + player.maxs);
 337         if(!wz)
 338                 return 0;
 339
 340 #ifdef WARPZONELIB_REMOVEHACK
 341         print("impactfilter found something - and it no longer gets handled correctly - please tell divVerent whether anything behaves broken now\n");
 342 #else
 343         print("impactfilter found something - and it even gets handled correctly - please tell divVerent that this code apparently gets triggered again\n");
 344 #endif
 345         print("Entity type: ", player.classname, "\n");
 346         print("Origin: ", vtos(player.origin), "\n");
 347         print("Velocity: ", vtos(player.velocity), "\n");
 348
 349 #ifdef WARPZONELIB_REMOVEHACK
 350         return 0;
 351 #else
 352         // retry previous move
 353         setorigin(player, player.warpzone_oldorigin);
 354         player.velocity = player.warpzone_oldvelocity;
 355         if(WarpZone_Teleport(wz, player, 0, 1))
 356         {
 357                 entity oldself;
 358                 string save1, save2;
 359
 360                 oldself = self;
 361                 self = wz;
 362                 other = player;
 363                 activator = player;
 364
 365                 save1 = self.target; self.target = string_null;
 366                 save2 = self.target3; self.target3 = string_null;
 367                 SUB_UseTargets();
 368                 if (!self.target) self.target = save1;
 369                 if (!self.target3) self.target3 = save2;
 370
 371                 self = self.enemy;
 372                 save1 = self.target; self.target = string_null;
 373                 save2 = self.target2; self.target2 = string_null;
 374                 SUB_UseTargets();
 375                 if (!self.target) self.target = save1;
 376                 if (!self.target2) self.target2 = save2;
 377                 self = oldself;
 378         }
 379         else
 380         {
 381                 setorigin(player, o0 - player.view_ofs);
 382                 player.velocity = v0;
 383         }
 384
 385         return +1;
 386 #endif
 387 }
 388 #endif
 389
 390 float WarpZone_Projectile_Touch()
 391 {
 392         if(other.classname == "trigger_warpzone")
 393                 return true;
 394
 395         // no further impacts if we teleported this frame!
 396         // this is because even if we did teleport, the engine still may raise
 397         // touch events for the previous location
 398         // engine now aborts moves on teleport, so this SHOULD not happen any more
 399         // but if this is called from TouchAreaGrid of the projectile moving,
 400         // then this won't do
 401         if(time == self.warpzone_teleport_time)
 402                 return true;
 403
 404 #ifdef WARPZONELIB_KEEPDEBUG
 405         // this SEEMS to not happen at the moment, but if it did, it would be more reliable
 406         {
 407                 float save_dpstartcontents;
 408                 float save_dphitcontents;
 409                 float save_dphitq3surfaceflags;
 410                 string save_dphittexturename;
 411                 float save_allsolid;
 412                 float save_startsolid;
 413                 float save_fraction;
 414                 vector save_endpos;
 415                 vector save_plane_normal;
 416                 float save_plane_dist;
 417                 entity save_ent;
 418                 float save_inopen;
 419                 float save_inwater;
 420                 save_dpstartcontents = trace_dpstartcontents;
 421                 save_dphitcontents = trace_dphitcontents;
 422                 save_dphitq3surfaceflags = trace_dphitq3surfaceflags;
 423                 save_dphittexturename = trace_dphittexturename;
 424                 save_allsolid = trace_allsolid;
 425                 save_startsolid = trace_startsolid;
 426                 save_fraction = trace_fraction;
 427                 save_endpos = trace_endpos;
 428                 save_plane_normal = trace_plane_normal;
 429                 save_plane_dist = trace_plane_dist;
 430                 save_ent = trace_ent;
 431                 save_inopen = trace_inopen;
 432                 save_inwater = trace_inwater;
 433                 float f;
 434                 if((f = WarpZone_CheckProjectileImpact(self)) != 0)
 435                         return (f > 0);
 436                 trace_dpstartcontents = save_dpstartcontents;
 437                 trace_dphitcontents = save_dphitcontents;
 438                 trace_dphitq3surfaceflags = save_dphitq3surfaceflags;
 439                 trace_dphittexturename = save_dphittexturename;
 440                 trace_allsolid = save_allsolid;
 441                 trace_startsolid = save_startsolid;
 442                 trace_fraction = save_fraction;
 443                 trace_endpos = save_endpos;
 444                 trace_plane_normal = save_plane_normal;
 445                 trace_plane_dist = save_plane_dist;
 446                 trace_ent = save_ent;
 447                 trace_inopen = save_inopen;
 448                 trace_inwater = save_inwater;
 449         }
 450 #endif
 451
 452         if(WarpZone_Projectile_Touch_ImpactFilter_Callback())
 453                 return true;
 454
 455         return false;
 456 }
 457
 458 void WarpZone_InitStep_FindOriginTarget()
 459 {
 460         if(self.killtarget != "")
 461         {
 462                 self.aiment = find(world, targetname, self.killtarget);
 463                 if(self.aiment == world)
 464                 {
 465                         error("Warp zone with nonexisting killtarget");
 466                         return;
 467                 }
 468                 self.killtarget = string_null;
 469         }
 470 }
 471
 472 void WarpZonePosition_InitStep_FindTarget()
 473 {
 474         if(self.target == "")
 475         {
 476                 error("Warp zone position with no target");
 477                 return;
 478         }
 479         self.enemy = find(world, targetname, self.target);
 480         if(self.enemy == world)
 481         {
 482                 error("Warp zone position with nonexisting target");
 483                 return;
 484         }
 485         if(self.enemy.aiment)
 486         {
 487                 // already is positioned
 488                 error("Warp zone position targeting already oriented warpzone");
 489                 return;
 490         }
 491         self.enemy.aiment = self;
 492 }
 493
 494 void WarpZoneCamera_Think(void)
 495 {
 496         if(self.warpzone_save_origin != self.origin
 497         || self.warpzone_save_angles != self.angles
 498         || self.warpzone_save_eorigin != self.enemy.origin
 499         || self.warpzone_save_eangles != self.enemy.angles)
 500         {
 501                 WarpZone_Camera_SetUp(self, self.enemy.origin, self.enemy.angles);
 502                 self.warpzone_save_origin = self.origin;
 503                 self.warpzone_save_angles = self.angles;
 504                 self.warpzone_save_eorigin = self.enemy.origin;
 505                 self.warpzone_save_eangles = self.enemy.angles;
 506         }
 507         self.nextthink = time;
 508 }
 509
 510 void WarpZoneCamera_InitStep_FindTarget()
 511 {
 512         entity e;
 513         float i;
 514         if(self.target == "")
 515         {
 516                 error("Camera with no target");
 517                 return;
 518         }
 519         self.enemy = world;
 520         for(e = world, i = 0; (e = find(e, targetname, self.target)); )
 521                 if(random() * ++i < 1)
 522                         self.enemy = e;
 523         if(self.enemy == world)
 524         {
 525                 error("Camera with nonexisting target");
 526                 return;
 527         }
 528         warpzone_cameras_exist = 1;
 529         WarpZone_Camera_SetUp(self, self.enemy.origin, self.enemy.angles);
 530         self.SendFlags = 0xFFFFFF;
 531         if(self.spawnflags & 1)
 532         {
 533                 self.think = WarpZoneCamera_Think;
 534                 self.nextthink = time;
 535         }
 536         else
 537                 self.nextthink = 0;
 538 }
 539
 540 void WarpZone_InitStep_UpdateTransform()
 541 {
 542         vector org, ang, norm, point;
 543         float area;
 544         vector tri, a, b, c, n;
 545         float i_s, i_t, n_t;
 546         string tex;
 547
 548         org = self.origin;
 549         if(org == '0 0 0')
 550                 org = 0.5 * (self.mins + self.maxs);
 551
 552         norm = point = '0 0 0';
 553         area = 0;
 554         for(i_s = 0; ; ++i_s)
 555         {
 556                 tex = getsurfacetexture(self, i_s);
 557                 if (!tex)
 558                         break; // this is beyond the last one
 559                 if(tex == "textures/common/trigger" || tex == "trigger")
 560                         continue;
 561                 n_t = getsurfacenumtriangles(self, i_s);
 562                 for(i_t = 0; i_t < n_t; ++i_t)
 563                 {
 564                         tri = getsurfacetriangle(self, i_s, i_t);
 565                         a = getsurfacepoint(self, i_s, tri.x);
 566                         b = getsurfacepoint(self, i_s, tri.y);
 567                         c = getsurfacepoint(self, i_s, tri.z);
 568                         n = cross(c - a, b - a);
 569                         area = area + vlen(n);
 570                         norm = norm + n;
 571                         point = point + vlen(n) * (a + b + c);
 572                 }
 573         }
 574         if(area > 0)
 575         {
 576                 norm = norm * (1 / area);
 577                 point = point * (1 / (3 * area));
 578                 if(vlen(norm) < 0.99)
 579                 {
 580                         print("trigger_warpzone near ", vtos(self.aiment.origin), " is nonplanar. BEWARE.\n");
 581                         area = 0; // no autofixing in this case
 582                 }
 583                 norm = normalize(norm);
 584         }
 585
 586         ang = '0 0 0';
 587         if(self.aiment)
 588         {
 589                 org = self.aiment.origin;
 590                 ang = self.aiment.angles;
 591                 if(area > 0)
 592                 {
 593                         org = org - ((org - point) * norm) * norm; // project to plane
 594                         makevectors(ang);
 595                         if(norm * v_forward < 0)
 596                         {
 597                                 print("Position target of trigger_warpzone near ", vtos(self.aiment.origin), " points into trigger_warpzone. BEWARE.\n");
 598                                 norm = -1 * norm;
 599                         }
 600                         ang = vectoangles2(norm, v_up); // keep rotation, but turn exactly against plane
 601                         ang.x = -ang.x;
 602                         if(norm * v_forward < 0.99)
 603                                 print("trigger_warpzone near ", vtos(self.aiment.origin), " has been turned to match plane orientation (", vtos(self.aiment.angles), " -> ", vtos(ang), "\n");
 604                         if(vlen(org - self.aiment.origin) > 0.5)
 605                                 print("trigger_warpzone near ", vtos(self.aiment.origin), " has been moved to match the plane (", vtos(self.aiment.origin), " -> ", vtos(org), ").\n");
 606                 }
 607         }
 608         else if(area > 0)
 609         {
 610                 org = point;
 611                 ang = vectoangles(norm);
 612                 ang.x = -ang.x;
 613         }
 614         else
 615                 error("cannot infer origin/angles for this warpzone, please use a killtarget or a trigger_warpzone_position");
 616
 617         self.warpzone_origin = org;
 618         self.warpzone_angles = ang;
 619 }
 620
 621 void WarpZone_InitStep_ClearTarget()
 622 {
 623         if(self.enemy)
 624                 self.enemy.enemy = world;
 625         self.enemy = world;
 626 }
 627
 628 entity warpzone_first; .entity warpzone_next;
 629 void WarpZone_InitStep_FindTarget()
 630 {
 631         float i;
 632         entity e, e2;
 633
 634         if(self.enemy)
 635                 return;
 636
 637         // this way only one of the two ents needs to target
 638         if(self.target != "")
 639         {
 640                 self.enemy = self; // so the if(!e.enemy) check also skips self, saves one IF
 641
 642                 e2 = world;
 643                 for(e = world, i = 0; (e = find(e, targetname, self.target)); )
 644                         if(!e.enemy)
 645                                 if(e.classname == self.classname) // possibly non-warpzones may use the same targetname!
 646                                         if(random() * ++i < 1)
 647                                                 e2 = e;
 648                 if(!e2)
 649                 {
 650                         self.enemy = world;
 651                         error("Warpzone with non-existing target");
 652                         return;
 653                 }
 654                 self.enemy = e2;
 655                 e2.enemy = self;
 656         }
 657 }
 658
 659 void WarpZone_Think();
 660 void WarpZone_InitStep_FinalizeTransform()
 661 {
 662         if(!self.enemy || self.enemy.enemy != self)
 663         {
 664                 error("Invalid warp zone detected. Killed.");
 665                 return;
 666         }
 667
 668         warpzone_warpzones_exist = 1;
 669         WarpZone_SetUp(self, self.warpzone_origin, self.warpzone_angles, self.enemy.warpzone_origin, self.enemy.warpzone_angles);
 670         self.touch = WarpZone_Touch;
 671         self.SendFlags = 0xFFFFFF;
 672         if(self.spawnflags & 1)
 673         {
 674                 self.think = WarpZone_Think;
 675                 self.nextthink = time;
 676         }
 677         else
 678                 self.nextthink = 0;
 679 }
 680
 681 float warpzone_initialized;
 682 //entity warpzone_first;
 683 entity warpzone_position_first;
 684 entity warpzone_camera_first;
 685 .entity warpzone_next;
 686 void spawnfunc_misc_warpzone_position(void)
 687 {
 688         // "target", "angles", "origin"
 689         self.warpzone_next = warpzone_position_first;
 690         warpzone_position_first = self;
 691 }
 692 void spawnfunc_trigger_warpzone_position(void)
 693 {
 694         spawnfunc_misc_warpzone_position();
 695 }
 696 void spawnfunc_trigger_warpzone(void)
 697 {
 698         // warp zone entities must have:
 699         // "killtarget" pointing to a target_position with a direction arrow
 700         //              that points AWAY from the warp zone, and that is inside
 701         //              the warp zone trigger
 702         // "target"     pointing to an identical warp zone at another place in
 703         //              the map, with another killtarget to designate its
 704         //              orientation
 705
 706 #ifndef WARPZONE_USE_FIXANGLE
 707         // used when teleporting
 708         precache_model("null");
 709 #endif
 710
 711         if(!self.scale)
 712                 self.scale = self.modelscale;
 713         if(!self.scale)
 714                 self.scale = 1;
 715         string m;
 716         m = self.model;
 717         WarpZoneLib_ExactTrigger_Init();
 718         if(m != "")
 719         {
 720                 precache_model(m);
 721                 setmodel(self, m); // no precision needed
 722         }
 723         setorigin(self, self.origin);
 724         if(self.scale)
 725                 setsize(self, self.mins * self.scale, self.maxs * self.scale);
 726         else
 727                 setsize(self, self.mins, self.maxs);
 728         self.SendEntity = WarpZone_Send;
 729         self.SendFlags = 0xFFFFFF;
 730         BITSET_ASSIGN(self.effects, EF_NODEPTHTEST);
 731         self.warpzone_next = warpzone_first;
 732         warpzone_first = self;
 733 }
 734 void spawnfunc_func_camera(void)
 735 {
 736         if(!self.scale)
 737                 self.scale = self.modelscale;
 738         if(!self.scale)
 739                 self.scale = 1;
 740         if(self.model != "")
 741         {
 742                 precache_model(self.model);
 743                 setmodel(self, self.model); // no precision needed
 744         }
 745         setorigin(self, self.origin);
 746         if(self.scale)
 747                 setsize(self, self.mins * self.scale, self.maxs * self.scale);
 748         else
 749                 setsize(self, self.mins, self.maxs);
 750         if(!self.solid)
 751                 self.solid = SOLID_BSP;
 752         else if(self.solid < 0)
 753                 self.solid = SOLID_NOT;
 754         self.SendEntity = WarpZone_Camera_Send;
 755         self.SendFlags = 0xFFFFFF;
 756         self.warpzone_next = warpzone_camera_first;
 757         warpzone_camera_first = self;
 758 }
 759 void WarpZones_Reconnect()
 760 {
 761         entity e;
 762         e = self;
 763         for(self = warpzone_first; self; self = self.warpzone_next)
 764                 WarpZone_InitStep_ClearTarget();
 765         for(self = warpzone_first; self; self = self.warpzone_next)
 766                 WarpZone_InitStep_FindTarget();
 767         for(self = warpzone_camera_first; self; self = self.warpzone_next)
 768                 WarpZoneCamera_InitStep_FindTarget();
 769         for(self = warpzone_first; self; self = self.warpzone_next)
 770                 WarpZone_InitStep_FinalizeTransform();
 771         self = e;
 772 }
 773
 774 void WarpZone_Think()
 775 {
 776         if(self.warpzone_save_origin != self.origin
 777         || self.warpzone_save_angles != self.angles
 778         || self.warpzone_save_eorigin != self.enemy.origin
 779         || self.warpzone_save_eangles != self.enemy.angles)
 780         {
 781                 entity oldself;
 782                 oldself = self;
 783                 WarpZone_InitStep_UpdateTransform();
 784                 self = self.enemy;
 785                 WarpZone_InitStep_UpdateTransform();
 786                 self = oldself;
 787                 WarpZone_InitStep_FinalizeTransform();
 788                 self = self.enemy;
 789                 WarpZone_InitStep_FinalizeTransform();
 790                 self = oldself;
 791                 self.warpzone_save_origin = self.origin;
 792                 self.warpzone_save_angles = self.angles;
 793                 self.warpzone_save_eorigin = self.enemy.origin;
 794                 self.warpzone_save_eangles = self.enemy.angles;
 795         }
 796         self.nextthink = time;
 797 }
 798
 799 void WarpZone_StartFrame()
 800 {
 801         entity e;
 802         if(warpzone_initialized == 0)
 803         {
 804                 warpzone_initialized = 1;
 805                 e = self;
 806                 for(self = warpzone_first; self; self = self.warpzone_next)
 807                         WarpZone_InitStep_FindOriginTarget();
 808                 for(self = warpzone_position_first; self; self = self.warpzone_next)
 809                         WarpZonePosition_InitStep_FindTarget();
 810                 for(self = warpzone_first; self; self = self.warpzone_next)
 811                         WarpZone_InitStep_UpdateTransform();
 812                 self = e;
 813                 WarpZones_Reconnect();
 814                 WarpZone_PostInitialize_Callback();
 815         }
 816
 817         entity oldself, oldother;
 818         oldself = self;
 819         oldother = other;
 820         for(e = world; (e = nextent(e)); )
 821         {
 822                 if(warpzone_warpzones_exist) { WarpZone_StoreProjectileData(e); }
 823
 824                 if(IS_REAL_CLIENT(e))
 825                 {
 826                         if(e.solid == SOLID_NOT) // not spectating?
 827                         if(e.movetype == MOVETYPE_NOCLIP || e.movetype == MOVETYPE_FLY || e.movetype == MOVETYPE_FLY_WORLDONLY) // not spectating? (this is to catch observers)
 828                         {
 829                                 other = e; // player
 830
 831                                 // warpzones
 832                                 if(warpzone_warpzones_exist) {
 833                                 self = WarpZone_Find(e.origin + e.mins, e.origin + e.maxs);
 834                                 if(self)
 835                                 if(!WarpZoneLib_ExactTrigger_Touch())
 836                                         if(WarpZone_PlaneDist(self, e.origin + e.view_ofs) <= 0)
 837                                                 WarpZone_Teleport(self, e, -1, 0); } // NOT triggering targets by this!
 838
 839                                 // teleporters
 840                                 self = Teleport_Find(e.origin + e.mins, e.origin + e.maxs);
 841                                 if(self)
 842                                 if(!WarpZoneLib_ExactTrigger_Touch())
 843                                         Simple_TeleportPlayer(self, other); // NOT triggering targets by this!
 844                         }
 845                 }
 846
 847                 if(IS_NOT_A_CLIENT(e))
 848                 {
 849                         if(warpzone_warpzones_exist)
 850                                 for (; (e = nextent(e)); )
 851                                         WarpZone_StoreProjectileData(e);
 852                         break;
 853                 }
 854         }
 855         self = oldself;
 856         other = oldother;
 857 }
 858
 859 .float warpzone_reconnecting;
 860 float visible_to_some_client(entity ent)
 861 {
 862         entity e;
 863         for(e = nextent(world); !IS_NOT_A_CLIENT(e); e = nextent(e))
 864                 if(IS_PLAYER(e) && IS_REAL_CLIENT(e))
 865                         if(checkpvs(e.origin + e.view_ofs, ent))
 866                                 return 1;
 867         return 0;
 868 }
 869 void trigger_warpzone_reconnect_use()
 870 {
 871         entity e;
 872         e = self;
 873         // NOTE: this matches for target, not targetname, but of course
 874         // targetname must be set too on the other entities
 875         for(self = warpzone_first; self; self = self.warpzone_next)
 876                 self.warpzone_reconnecting = ((e.target == "" || self.target == e.target) && !((e.spawnflags & 1) && (visible_to_some_client(self) || visible_to_some_client(self.enemy))));
 877         for(self = warpzone_camera_first; self; self = self.warpzone_next)
 878                 self.warpzone_reconnecting = ((e.target == "" || self.target == e.target) && !((e.spawnflags & 1) && visible_to_some_client(self)));
 879         for(self = warpzone_first; self; self = self.warpzone_next)
 880                 if(self.warpzone_reconnecting)
 881                         WarpZone_InitStep_ClearTarget();
 882         for(self = warpzone_first; self; self = self.warpzone_next)
 883                 if(self.warpzone_reconnecting)
 884                         WarpZone_InitStep_FindTarget();
 885         for(self = warpzone_camera_first; self; self = self.warpzone_next)
 886                 if(self.warpzone_reconnecting)
 887                         WarpZoneCamera_InitStep_FindTarget();
 888         for(self = warpzone_first; self; self = self.warpzone_next)
 889                 if(self.warpzone_reconnecting || self.enemy.warpzone_reconnecting)
 890                         WarpZone_InitStep_FinalizeTransform();
 891         self = e;
 892 }
 893
 894 void spawnfunc_trigger_warpzone_reconnect()
 895 {
 896         self.use = trigger_warpzone_reconnect_use;
 897 }
 898
 899 void spawnfunc_target_warpzone_reconnect()
 900 {
 901         spawnfunc_trigger_warpzone_reconnect(); // both names make sense here :(
 902 }
 903
 904 void WarpZone_PlayerPhysics_FixVAngle(void)
 905 {
 906 #ifndef WARPZONE_DONT_FIX_VANGLE
 907         if(IS_REAL_CLIENT(self))
 908         if(self.v_angle.z <= 360) // if not already adjusted
 909         if(time - self.ping * 0.001 < self.warpzone_teleport_time)
 910         {
 911                 self.v_angle = WarpZone_TransformVAngles(self.warpzone_teleport_zone, self.v_angle);
 912                 self.v_angle_z += 720; // mark as adjusted
 913         }
 914 #endif
 915 }