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weapons: fix being able to switch to no weapon
[xonotic/xonotic-data.pk3dir.git] / qcsrc / server / miscfunctions.qc
1 #include "miscfunctions.qh"
2 #include "antilag.qh"
3 #include "command/common.qh"
4 #include "constants.qh"
5 #include "g_hook.qh"
6 #include "ipban.qh"
7 #include "mutators/all.qh"
8 #include "t_items.qh"
9 #include "weapons/accuracy.qh"
10 #include "weapons/csqcprojectile.qh"
11 #include "weapons/selection.qh"
12 #include "../common/command/generic.qh"
13 #include "../common/constants.qh"
14 #include "../common/deathtypes/all.qh"
15 #include "../common/mapinfo.qh"
16 #include "../common/notifications.qh"
17 #include "../common/playerstats.qh"
18 #include "../common/teams.qh"
19 #include "../common/triggers/subs.qh"
20 #include "../common/util.qh"
21 #include "../common/turrets/sv_turrets.qh"
22 #include "../common/weapons/all.qh"
23 #include "../common/vehicles/sv_vehicles.qh"
24 #include "../common/vehicles/vehicle.qh"
25 #include "../common/items/all.qc"
26 #include "../lib/csqcmodel/sv_model.qh"
27 #include "../lib/warpzone/anglestransform.qh"
28 #include "../lib/warpzone/server.qh"
29
30 void crosshair_trace(entity pl)
31 {
32         traceline_antilag(pl, pl.cursor_trace_start, pl.cursor_trace_start + normalize(pl.cursor_trace_endpos - pl.cursor_trace_start) * MAX_SHOT_DISTANCE, MOVE_NORMAL, pl, ANTILAG_LATENCY(pl));
33 }
34 void crosshair_trace_plusvisibletriggers(entity pl)
35 {
36         entity first;
37         entity e;
38         first = findchainfloat(solid, SOLID_TRIGGER);
39
40         for (e = first; e; e = e.chain)
41                 if (e.model != "")
42                         e.solid = SOLID_BSP;
43
44         crosshair_trace(pl);
45
46         for (e = first; e; e = e.chain)
47                 e.solid = SOLID_TRIGGER;
48 }
49 void WarpZone_crosshair_trace(entity pl)
50 {
51         WarpZone_traceline_antilag(pl, pl.cursor_trace_start, pl.cursor_trace_start + normalize(pl.cursor_trace_endpos - pl.cursor_trace_start) * MAX_SHOT_DISTANCE, MOVE_NORMAL, pl, ANTILAG_LATENCY(pl));
52 }
53
54
55 string admin_name()
56 {
57         if(autocvar_sv_adminnick != "")
58                 return autocvar_sv_adminnick;
59         else
60                 return "SERVER ADMIN";
61 }
62
63
64 void GameLogEcho(string s)
65 {
66     string fn;
67     int matches;
68
69     if (autocvar_sv_eventlog_files)
70     {
71         if (!logfile_open)
72         {
73             logfile_open = true;
74             matches = autocvar_sv_eventlog_files_counter + 1;
75             cvar_set("sv_eventlog_files_counter", itos(matches));
76             fn = ftos(matches);
77             if (strlen(fn) < 8)
78                 fn = strcat(substring("00000000", 0, 8 - strlen(fn)), fn);
79             fn = strcat(autocvar_sv_eventlog_files_nameprefix, fn, autocvar_sv_eventlog_files_namesuffix);
80             logfile = fopen(fn, FILE_APPEND);
81             fputs(logfile, ":logversion:3\n");
82         }
83         if (logfile >= 0)
84         {
85             if (autocvar_sv_eventlog_files_timestamps)
86                 fputs(logfile, strcat(":time:", strftime(true, "%Y-%m-%d %H:%M:%S", "\n", s, "\n")));
87             else
88                 fputs(logfile, strcat(s, "\n"));
89         }
90     }
91     if (autocvar_sv_eventlog_console)
92     {
93         LOG_INFO(s, "\n");
94     }
95 }
96
97 void GameLogInit()
98 {
99     logfile_open = 0;
100     // will be opened later
101 }
102
103 void GameLogClose()
104 {
105     if (logfile_open && logfile >= 0)
106     {
107         fclose(logfile);
108         logfile = -1;
109     }
110 }
111
112 entity findnearest(vector point, .string field, string value, vector axismod)
113 {
114     entity localhead;
115     float i;
116     float j;
117     float len;
118     vector dist;
119
120     float num_nearest;
121     num_nearest = 0;
122
123     localhead = find(world, field, value);
124     while (localhead)
125     {
126         if ((localhead.items == IT_KEY1 || localhead.items == IT_KEY2) && localhead.target == "###item###")
127             dist = localhead.oldorigin;
128         else
129             dist = localhead.origin;
130         dist = dist - point;
131         dist = dist.x * axismod.x * '1 0 0' + dist.y * axismod.y * '0 1 0' + dist.z * axismod.z * '0 0 1';
132         len = vlen(dist);
133
134         for (i = 0; i < num_nearest; ++i)
135         {
136             if (len < nearest_length[i])
137                 break;
138         }
139
140         // now i tells us where to insert at
141         //   INSERTION SORT! YOU'VE SEEN IT! RUN!
142         if (i < NUM_NEAREST_ENTITIES)
143         {
144             for (j = NUM_NEAREST_ENTITIES - 1; j >= i; --j)
145             {
146                 nearest_length[j + 1] = nearest_length[j];
147                 nearest_entity[j + 1] = nearest_entity[j];
148             }
149             nearest_length[i] = len;
150             nearest_entity[i] = localhead;
151             if (num_nearest < NUM_NEAREST_ENTITIES)
152                 num_nearest = num_nearest + 1;
153         }
154
155         localhead = find(localhead, field, value);
156     }
157
158     // now use the first one from our list that we can see
159     for (i = 0; i < num_nearest; ++i)
160     {
161         traceline(point, nearest_entity[i].origin, true, world);
162         if (trace_fraction == 1)
163         {
164             if (i != 0)
165             {
166                 LOG_TRACE("Nearest point (");
167                 LOG_TRACE(nearest_entity[0].netname);
168                 LOG_TRACE(") is not visible, using a visible one.\n");
169             }
170             return nearest_entity[i];
171         }
172     }
173
174     if (num_nearest == 0)
175         return world;
176
177     LOG_TRACE("Not seeing any location point, using nearest as fallback.\n");
178     /* DEBUGGING CODE:
179     dprint("Candidates were: ");
180     for(j = 0; j < num_nearest; ++j)
181     {
182         if(j != 0)
183                 dprint(", ");
184         dprint(nearest_entity[j].netname);
185     }
186     dprint("\n");
187     */
188
189     return nearest_entity[0];
190 }
191
192 string NearestLocation(vector p)
193 {
194     entity loc;
195     string ret;
196     ret = "somewhere";
197     loc = findnearest(p, classname, "target_location", '1 1 1');
198     if (loc)
199     {
200         ret = loc.message;
201     }
202     else
203     {
204         loc = findnearest(p, target, "###item###", '1 1 4');
205         if (loc)
206             ret = loc.netname;
207     }
208     return ret;
209 }
210
211 string formatmessage(string msg)
212 {SELFPARAM();
213         float p, p1, p2;
214         float n;
215         vector cursor;
216         entity cursor_ent;
217         string escape;
218         string replacement;
219         string ammoitems;
220         p = 0;
221         n = 7;
222
223         ammoitems = "batteries";
224         if(self.items & ITEM_Plasma.m_itemid) ammoitems = ITEM_Plasma.m_name;
225         if(self.items & ITEM_Cells.m_itemid) ammoitems = ITEM_Cells.m_name;
226         if(self.items & ITEM_Rockets.m_itemid) ammoitems = ITEM_Rockets.m_name;
227         if(self.items & ITEM_Shells.m_itemid) ammoitems = ITEM_Shells.m_name;
228
229         WarpZone_crosshair_trace(self);
230         cursor = trace_endpos;
231         cursor_ent = trace_ent;
232
233         while (1) {
234                 if (n < 1)
235                         break; // too many replacements
236
237                 n = n - 1;
238                 p1 = strstr(msg, "%", p); // NOTE: this destroys msg as it's a tempstring!
239                 p2 = strstr(msg, "\\", p); // NOTE: this destroys msg as it's a tempstring!
240
241                 if (p1 < 0)
242                         p1 = p2;
243
244                 if (p2 < 0)
245                         p2 = p1;
246
247                 p = min(p1, p2);
248
249                 if (p < 0)
250                         break;
251
252                 replacement = substring(msg, p, 2);
253                 escape = substring(msg, p + 1, 1);
254
255                 switch(escape)
256                 {
257                         case "%": replacement = "%"; break;
258                         case "\\":replacement = "\\"; break;
259                         case "n": replacement = "\n"; break;
260                         case "a": replacement = ftos(floor(self.armorvalue)); break;
261                         case "h": replacement = ftos(floor(self.health)); break;
262                         case "l": replacement = NearestLocation(self.origin); break;
263                         case "y": replacement = NearestLocation(cursor); break;
264                         case "d": replacement = NearestLocation(self.death_origin); break;
265                         case "w": replacement = ((PS(self).m_weapon == WEP_Null) ? ((PS(self).m_switchweapon == WEP_Null) ? Weapons_from(self.cnt) : PS(self).m_switchweapon) : PS(self).m_weapon).m_name; break;
266                         case "W": replacement = ammoitems; break;
267                         case "x": replacement = ((cursor_ent.netname == "" || !cursor_ent) ? "nothing" : cursor_ent.netname); break;
268                         case "s": replacement = ftos(vlen(self.velocity - self.velocity_z * '0 0 1')); break;
269                         case "S": replacement = ftos(vlen(self.velocity)); break;
270                         case "t": replacement = seconds_tostring(ceil(max(0, autocvar_timelimit * 60 + game_starttime - time))); break;
271                         case "T": replacement = seconds_tostring(floor(time - game_starttime)); break;
272                         default:
273                         {
274                                 MUTATOR_CALLHOOK(FormatMessage, escape, replacement, msg);
275                                 escape = format_escape;
276                                 replacement = format_replacement;
277                                 break;
278                         }
279                 }
280
281                 msg = strcat(substring(msg, 0, p), replacement, substring(msg, p+2, strlen(msg) - (p+2)));
282                 p = p + strlen(replacement);
283         }
284         return msg;
285 }
286
287 /*
288 =============
289 GetCvars
290 =============
291 Called with:
292   0:  sends the request
293   >0: receives a cvar from name=argv(f) value=argv(f+1)
294 */
295 void GetCvars_handleString(string thisname, float f, .string field, string name)
296 {SELFPARAM();
297         if (f < 0)
298         {
299                 if (self.(field))
300                         strunzone(self.(field));
301                 self.(field) = string_null;
302         }
303         else if (f > 0)
304         {
305                 if (thisname == name)
306                 {
307                         if (self.(field))
308                                 strunzone(self.(field));
309                         self.(field) = strzone(argv(f + 1));
310                 }
311         }
312         else
313                 stuffcmd(self, strcat("cl_cmd sendcvar ", name, "\n"));
314 }
315 void GetCvars_handleString_Fixup(string thisname, float f, .string field, string name, string(string) func)
316 {SELFPARAM();
317         GetCvars_handleString(thisname, f, field, name);
318         if (f >= 0) // also initialize to the fitting value for "" when sending cvars out
319                 if (thisname == name)
320                 {
321                         string s = func(strcat1(self.(field)));
322                         if (s != self.(field))
323                         {
324                                 strunzone(self.(field));
325                                 self.(field) = strzone(s);
326                         }
327                 }
328 }
329 void GetCvars_handleFloat(string thisname, float f, .float field, string name)
330 {SELFPARAM();
331         if (f < 0)
332         {
333         }
334         else if (f > 0)
335         {
336                 if (thisname == name)
337                         self.(field) = stof(argv(f + 1));
338         }
339         else
340                 stuffcmd(self, strcat("cl_cmd sendcvar ", name, "\n"));
341 }
342 void GetCvars_handleFloatOnce(string thisname, float f, .float field, string name)
343 {SELFPARAM();
344         if (f < 0)
345         {
346         }
347         else if (f > 0)
348         {
349                 if (thisname == name)
350                 {
351                         if (!self.(field))
352                         {
353                                 self.(field) = stof(argv(f + 1));
354                                 if (!self.(field))
355                                         self.(field) = -1;
356                         }
357                 }
358         }
359         else
360         {
361                 if (!self.(field))
362                         stuffcmd(self, strcat("cl_cmd sendcvar ", name, "\n"));
363         }
364 }
365 string W_FixWeaponOrder_ForceComplete_AndBuildImpulseList(string wo)
366 {SELFPARAM();
367         string o;
368         o = W_FixWeaponOrder_ForceComplete(wo);
369         if(self.weaponorder_byimpulse)
370         {
371                 strunzone(self.weaponorder_byimpulse);
372                 self.weaponorder_byimpulse = string_null;
373         }
374         self.weaponorder_byimpulse = strzone(W_FixWeaponOrder_BuildImpulseList(o));
375         return o;
376 }
377
378 /**
379  * @param f -1: cleanup, 0: request, 1: receive
380  */
381 void GetCvars(int f)
382 {SELFPARAM();
383         string s = string_null;
384
385         if (f > 0)
386                 s = strcat1(argv(f));
387
388         get_cvars_f = f;
389         get_cvars_s = s;
390         MUTATOR_CALLHOOK(GetCvars);
391
392         Notification_GetCvars();
393
394         ReplicateVars(this, s, f);
395
396         GetCvars_handleFloat(s, f, autoswitch, "cl_autoswitch");
397         GetCvars_handleFloat(s, f, cvar_cl_autoscreenshot, "cl_autoscreenshot");
398         GetCvars_handleFloat(s, f, cvar_cl_jetpack_jump, "cl_jetpack_jump");
399         GetCvars_handleString(s, f, cvar_g_xonoticversion, "g_xonoticversion");
400         GetCvars_handleString(s, f, cvar_cl_physics, "cl_physics");
401         GetCvars_handleFloat(s, f, cvar_cl_handicap, "cl_handicap");
402         GetCvars_handleFloat(s, f, cvar_cl_clippedspectating, "cl_clippedspectating");
403         GetCvars_handleString_Fixup(s, f, cvar_cl_weaponpriority, "cl_weaponpriority", W_FixWeaponOrder_ForceComplete_AndBuildImpulseList);
404         GetCvars_handleString_Fixup(s, f, cvar_cl_weaponpriorities[0], "cl_weaponpriority0", W_FixWeaponOrder_AllowIncomplete);
405         GetCvars_handleString_Fixup(s, f, cvar_cl_weaponpriorities[1], "cl_weaponpriority1", W_FixWeaponOrder_AllowIncomplete);
406         GetCvars_handleString_Fixup(s, f, cvar_cl_weaponpriorities[2], "cl_weaponpriority2", W_FixWeaponOrder_AllowIncomplete);
407         GetCvars_handleString_Fixup(s, f, cvar_cl_weaponpriorities[3], "cl_weaponpriority3", W_FixWeaponOrder_AllowIncomplete);
408         GetCvars_handleString_Fixup(s, f, cvar_cl_weaponpriorities[4], "cl_weaponpriority4", W_FixWeaponOrder_AllowIncomplete);
409         GetCvars_handleString_Fixup(s, f, cvar_cl_weaponpriorities[5], "cl_weaponpriority5", W_FixWeaponOrder_AllowIncomplete);
410         GetCvars_handleString_Fixup(s, f, cvar_cl_weaponpriorities[6], "cl_weaponpriority6", W_FixWeaponOrder_AllowIncomplete);
411         GetCvars_handleString_Fixup(s, f, cvar_cl_weaponpriorities[7], "cl_weaponpriority7", W_FixWeaponOrder_AllowIncomplete);
412         GetCvars_handleString_Fixup(s, f, cvar_cl_weaponpriorities[8], "cl_weaponpriority8", W_FixWeaponOrder_AllowIncomplete);
413         GetCvars_handleString_Fixup(s, f, cvar_cl_weaponpriorities[9], "cl_weaponpriority9", W_FixWeaponOrder_AllowIncomplete);
414         GetCvars_handleFloat(s, f, cvar_cl_weaponimpulsemode, "cl_weaponimpulsemode");
415         GetCvars_handleFloat(s, f, cvar_cl_autotaunt, "cl_autotaunt");
416         GetCvars_handleFloat(s, f, cvar_cl_noantilag, "cl_noantilag");
417         GetCvars_handleFloat(s, f, cvar_cl_voice_directional, "cl_voice_directional");
418         GetCvars_handleFloat(s, f, cvar_cl_voice_directional_taunt_attenuation, "cl_voice_directional_taunt_attenuation");
419
420         GetCvars_handleFloat(s, f, cvar_cl_allow_uid2name, "cl_allow_uid2name");
421         GetCvars_handleFloat(s, f, cvar_cl_allow_uidtracking, "cl_allow_uidtracking");
422         GetCvars_handleFloat(s, f, cvar_cl_movement_track_canjump, "cl_movement_track_canjump");
423         GetCvars_handleFloat(s, f, cvar_cl_newusekeysupported, "cl_newusekeysupported");
424
425         // fixup of switchweapon (needed for LMS or when spectating is disabled, as PutClientInServer comes too early)
426         if (f > 0)
427         {
428                 if (s == "cl_weaponpriority")
429                         if (PS(self)) PS(self).m_switchweapon = w_getbestweapon(self);
430                 if (s == "cl_allow_uidtracking")
431                         PlayerStats_GameReport_AddPlayer(self);
432         }
433 }
434
435 // decolorizes and team colors the player name when needed
436 string playername(entity p)
437 {
438     string t;
439     if (teamplay && !intermission_running && IS_PLAYER(p))
440     {
441         t = Team_ColorCode(p.team);
442         return strcat(t, strdecolorize(p.netname));
443     }
444     else
445         return p.netname;
446 }
447
448 float want_weapon(entity weaponinfo, float allguns) // WEAPONTODO: what still needs done?
449 {
450         int i = weaponinfo.m_id;
451         int d = 0;
452         bool allow_mutatorblocked = false;
453
454         if(!i)
455                 return 0;
456
457         bool mutator_returnvalue = MUTATOR_CALLHOOK(WantWeapon, weaponinfo, d, allguns, allow_mutatorblocked);
458         d = ret_float;
459         allguns = want_allguns;
460         allow_mutatorblocked = false;
461
462         if(allguns)
463         {
464                 if(weaponinfo.spawnflags & WEP_FLAG_NORMAL)
465                         d = true;
466                 else
467                         d = false;
468         }
469         else if(!mutator_returnvalue)
470                 d = !(!weaponinfo.weaponstart);
471
472         if(!allow_mutatorblocked && (weaponinfo.spawnflags & WEP_FLAG_MUTATORBLOCKED)) // never default mutator blocked guns
473                 d = 0;
474
475         float t = weaponinfo.weaponstartoverride;
476
477         //print(strcat("want_weapon: ", weaponinfo.netname, " - d: ", ftos(d), ", t: ", ftos(t), ". \n"));
478
479         // bit order in t:
480         // 1: want or not
481         // 2: is default?
482         // 4: is set by default?
483         if(t < 0)
484                 t = 4 | (3 * d);
485         else
486                 t |= (2 * d);
487
488         return t;
489 }
490
491 void readplayerstartcvars()
492 {
493         entity e;
494         float i, j, t;
495         string s;
496
497         // initialize starting values for players
498         start_weapons = '0 0 0';
499         start_weapons_default = '0 0 0';
500         start_weapons_defaultmask = '0 0 0';
501         start_items = 0;
502         start_ammo_shells = 0;
503         start_ammo_nails = 0;
504         start_ammo_rockets = 0;
505         start_ammo_cells = 0;
506         start_ammo_plasma = 0;
507         start_health = cvar("g_balance_health_start");
508         start_armorvalue = cvar("g_balance_armor_start");
509
510         g_weaponarena = 0;
511         g_weaponarena_weapons = '0 0 0';
512
513         s = cvar_string("g_weaponarena");
514
515         MUTATOR_CALLHOOK(SetWeaponArena, s);
516         s = ret_string;
517
518         if (s == "0" || s == "")
519         {
520                 // no arena
521         }
522         else if (s == "off")
523         {
524                 // forcibly turn off weaponarena
525         }
526         else if (s == "all" || s == "1")
527         {
528                 g_weaponarena = 1;
529                 g_weaponarena_list = "All Weapons";
530                 for (j = WEP_FIRST; j <= WEP_LAST; ++j)
531                 {
532                         e = Weapons_from(j);
533                         if (!(e.spawnflags & WEP_FLAG_MUTATORBLOCKED))
534                                 g_weaponarena_weapons |= (e.m_wepset);
535                 }
536         }
537         else if (s == "most")
538         {
539                 g_weaponarena = 1;
540                 g_weaponarena_list = "Most Weapons";
541                 for (j = WEP_FIRST; j <= WEP_LAST; ++j)
542                 {
543                         e = Weapons_from(j);
544                         if (!(e.spawnflags & WEP_FLAG_MUTATORBLOCKED))
545                                 if (e.spawnflags & WEP_FLAG_NORMAL)
546                                         g_weaponarena_weapons |= (e.m_wepset);
547                 }
548         }
549         else if (s == "none")
550         {
551                 g_weaponarena = 1;
552                 g_weaponarena_list = "No Weapons";
553         }
554         else
555         {
556                 g_weaponarena = 1;
557                 t = tokenize_console(s);
558                 g_weaponarena_list = "";
559                 for (i = 0; i < t; ++i)
560                 {
561                         s = argv(i);
562                         for (j = WEP_FIRST; j <= WEP_LAST; ++j)
563                         {
564                                 e = Weapons_from(j);
565                                 if (e.netname == s)
566                                 {
567                                         g_weaponarena_weapons |= (e.m_wepset);
568                                         g_weaponarena_list = strcat(g_weaponarena_list, e.m_name, " & ");
569                                         break;
570                                 }
571                         }
572                         if (j > WEP_LAST)
573                         {
574                                 LOG_INFO("The weapon mutator list contains an unknown weapon ", s, ". Skipped.\n");
575                         }
576                 }
577                 g_weaponarena_list = strzone(substring(g_weaponarena_list, 0, strlen(g_weaponarena_list) - 3));
578         }
579
580         if(g_weaponarena)
581                 g_weaponarena_random = cvar("g_weaponarena_random");
582         else
583                 g_weaponarena_random = 0;
584         g_weaponarena_random_with_blaster = cvar("g_weaponarena_random_with_blaster");
585
586         if (g_weaponarena)
587         {
588                 g_weapon_stay = 0; // incompatible
589                 start_weapons = g_weaponarena_weapons;
590                 start_items |= IT_UNLIMITED_AMMO;
591         }
592         else
593         {
594                 for (i = WEP_FIRST; i <= WEP_LAST; ++i)
595                 {
596                         e = Weapons_from(i);
597                         int w = want_weapon(e, false);
598                         WepSet s = e.m_wepset;
599                         if(w & 1)
600                                 start_weapons |= s;
601                         if(w & 2)
602                                 start_weapons_default |= s;
603                         if(w & 4)
604                                 start_weapons_defaultmask |= s;
605                 }
606         }
607
608         if(!cvar("g_use_ammunition"))
609                 start_items |= IT_UNLIMITED_AMMO;
610
611         if(start_items & IT_UNLIMITED_WEAPON_AMMO)
612         {
613                 start_ammo_shells = 999;
614                 start_ammo_nails = 999;
615                 start_ammo_rockets = 999;
616                 start_ammo_cells = 999;
617                 start_ammo_plasma = 999;
618                 start_ammo_fuel = 999;
619         }
620         else
621         {
622                 start_ammo_shells = cvar("g_start_ammo_shells");
623                 start_ammo_nails = cvar("g_start_ammo_nails");
624                 start_ammo_rockets = cvar("g_start_ammo_rockets");
625                 start_ammo_cells = cvar("g_start_ammo_cells");
626                 start_ammo_plasma = cvar("g_start_ammo_plasma");
627                 start_ammo_fuel = cvar("g_start_ammo_fuel");
628         }
629
630         if (warmup_stage)
631         {
632                 warmup_start_ammo_shells = start_ammo_shells;
633                 warmup_start_ammo_nails = start_ammo_nails;
634                 warmup_start_ammo_rockets = start_ammo_rockets;
635                 warmup_start_ammo_cells = start_ammo_cells;
636                 warmup_start_ammo_plasma = start_ammo_plasma;
637                 warmup_start_ammo_fuel = start_ammo_fuel;
638                 warmup_start_health = start_health;
639                 warmup_start_armorvalue = start_armorvalue;
640                 warmup_start_weapons = start_weapons;
641                 warmup_start_weapons_default = start_weapons_default;
642                 warmup_start_weapons_defaultmask = start_weapons_defaultmask;
643
644                 if (!g_weaponarena && !g_ca && !g_freezetag)
645                 {
646                         warmup_start_ammo_shells = cvar("g_warmup_start_ammo_shells");
647                         warmup_start_ammo_nails = cvar("g_warmup_start_ammo_nails");
648                         warmup_start_ammo_rockets = cvar("g_warmup_start_ammo_rockets");
649                         warmup_start_ammo_cells = cvar("g_warmup_start_ammo_cells");
650                         warmup_start_ammo_plasma = cvar("g_warmup_start_ammo_plasma");
651                         warmup_start_ammo_fuel = cvar("g_warmup_start_ammo_fuel");
652                         warmup_start_health = cvar("g_warmup_start_health");
653                         warmup_start_armorvalue = cvar("g_warmup_start_armor");
654                         warmup_start_weapons = '0 0 0';
655                         warmup_start_weapons_default = '0 0 0';
656                         warmup_start_weapons_defaultmask = '0 0 0';
657                         for (i = WEP_FIRST; i <= WEP_LAST; ++i)
658                         {
659                                 e = Weapons_from(i);
660                                 int w = want_weapon(e, g_warmup_allguns);
661                                 WepSet s = (e.m_wepset);
662                                 if(w & 1)
663                                         warmup_start_weapons |= s;
664                                 if(w & 2)
665                                         warmup_start_weapons_default |= s;
666                                 if(w & 4)
667                                         warmup_start_weapons_defaultmask |= s;
668                         }
669                 }
670         }
671
672         if (g_jetpack)
673                 start_items |= ITEM_Jetpack.m_itemid;
674
675         MUTATOR_CALLHOOK(SetStartItems);
676
677         if (start_items & ITEM_Jetpack.m_itemid)
678         {
679                 start_items |= ITEM_JetpackRegen.m_itemid;
680                 start_ammo_fuel = max(start_ammo_fuel, cvar("g_balance_fuel_rotstable"));
681                 warmup_start_ammo_fuel = max(warmup_start_ammo_fuel, cvar("g_balance_fuel_rotstable"));
682         }
683
684         WepSet precache_weapons = start_weapons;
685         if (g_warmup_allguns != 1)
686                 precache_weapons |= warmup_start_weapons;
687         for (i = WEP_FIRST; i <= WEP_LAST; ++i)
688         {
689                 e = Weapons_from(i);
690                 if(precache_weapons & (e.m_wepset)) {
691                         e.wr_init(e);
692                 }
693         }
694
695         start_ammo_shells = max(0, start_ammo_shells);
696         start_ammo_nails = max(0, start_ammo_nails);
697         start_ammo_rockets = max(0, start_ammo_rockets);
698         start_ammo_cells = max(0, start_ammo_cells);
699         start_ammo_plasma = max(0, start_ammo_plasma);
700         start_ammo_fuel = max(0, start_ammo_fuel);
701
702         warmup_start_ammo_shells = max(0, warmup_start_ammo_shells);
703         warmup_start_ammo_nails = max(0, warmup_start_ammo_nails);
704         warmup_start_ammo_rockets = max(0, warmup_start_ammo_rockets);
705         warmup_start_ammo_cells = max(0, warmup_start_ammo_cells);
706         warmup_start_ammo_plasma = max(0, warmup_start_ammo_plasma);
707         warmup_start_ammo_fuel = max(0, warmup_start_ammo_fuel);
708 }
709
710 void precache_playermodel(string m)
711 {
712         float globhandle, i, n;
713         string f;
714
715         if(substring(m, -9,5) == "_lod1")
716                 return;
717         if(substring(m, -9,5) == "_lod2")
718                 return;
719         precache_model(m);
720         f = strcat(substring(m, 0, -5), "_lod1", substring(m, -4, -1));
721         if(fexists(f))
722                 precache_model(f);
723         f = strcat(substring(m, 0, -5), "_lod2", substring(m, -4, -1));
724         if(fexists(f))
725                 precache_model(f);
726
727         globhandle = search_begin(strcat(m, "_*.sounds"), true, false);
728         if (globhandle < 0)
729                 return;
730         n = search_getsize(globhandle);
731         for (i = 0; i < n; ++i)
732         {
733                 //print(search_getfilename(globhandle, i), "\n");
734                 f = search_getfilename(globhandle, i);
735                 PrecachePlayerSounds(f);
736         }
737         search_end(globhandle);
738 }
739 void precache_all_playermodels(string pattern)
740 {
741         int globhandle = search_begin(pattern, true, false);
742         if (globhandle < 0) return;
743         int n = search_getsize(globhandle);
744         for (int i = 0; i < n; ++i)
745         {
746                 string s = search_getfilename(globhandle, i);
747                 precache_playermodel(s);
748         }
749         search_end(globhandle);
750 }
751
752 void precache_playermodels(string s)
753 {
754         FOREACH_WORD(s, true, LAMBDA(precache_playermodel(it)));
755 }
756
757 void precache()
758 {SELFPARAM();
759     // gamemode related things
760
761     // Precache all player models if desired
762     if (autocvar_sv_precacheplayermodels)
763     {
764         PrecachePlayerSounds("sound/player/default.sounds");
765         precache_all_playermodels("models/player/*.zym");
766         precache_all_playermodels("models/player/*.dpm");
767         precache_all_playermodels("models/player/*.md3");
768         precache_all_playermodels("models/player/*.psk");
769         precache_all_playermodels("models/player/*.iqm");
770     }
771
772     if (autocvar_sv_defaultcharacter)
773     {
774                 precache_playermodels(autocvar_sv_defaultplayermodel_red);
775                 precache_playermodels(autocvar_sv_defaultplayermodel_blue);
776                 precache_playermodels(autocvar_sv_defaultplayermodel_yellow);
777                 precache_playermodels(autocvar_sv_defaultplayermodel_pink);
778                 precache_playermodels(autocvar_sv_defaultplayermodel);
779     }
780
781 #if 0
782     // Disabled this code because it simply does not work (e.g. ignores bgmvolume, overlaps with "cd loop" controlled tracks).
783
784     if (!self.noise && self.music) // quake 3 uses the music field
785         self.noise = self.music;
786
787     // plays music for the level if there is any
788     if (self.noise)
789     {
790         precache_sound (self.noise);
791         ambientsound ('0 0 0', self.noise, VOL_BASE, ATTEN_NONE);
792     }
793 #endif
794 }
795
796
797 void make_safe_for_remove(entity e)
798 {
799     if (e.initialize_entity)
800     {
801         entity ent, prev = world;
802         for (ent = initialize_entity_first; ent; )
803         {
804             if ((ent == e) || ((ent.classname == "initialize_entity") && (ent.enemy == e)))
805             {
806                 //print("make_safe_for_remove: getting rid of initializer ", etos(ent), "\n");
807                 // skip it in linked list
808                 if (prev)
809                 {
810                     prev.initialize_entity_next = ent.initialize_entity_next;
811                     ent = prev.initialize_entity_next;
812                 }
813                 else
814                 {
815                     initialize_entity_first = ent.initialize_entity_next;
816                     ent = initialize_entity_first;
817                 }
818             }
819             else
820             {
821                 prev = ent;
822                 ent = ent.initialize_entity_next;
823             }
824         }
825     }
826 }
827
828 void objerror(string s)
829 {SELFPARAM();
830     make_safe_for_remove(self);
831     builtin_objerror(s);
832 }
833
834 .float remove_except_protected_forbidden;
835 void remove_except_protected(entity e)
836 {
837         if(e.remove_except_protected_forbidden)
838                 error("not allowed to remove this at this point");
839         builtin_remove(e);
840 }
841
842 void remove_unsafely(entity e)
843 {
844     if(e.classname == "spike")
845         error("Removing spikes is forbidden (crylink bug), please report");
846     builtin_remove(e);
847 }
848
849 void remove_safely(entity e)
850 {
851     make_safe_for_remove(e);
852     builtin_remove(e);
853 }
854
855 void InitializeEntity(entity e, void() func, float order)
856 {
857     entity prev, cur;
858
859     if (!e || e.initialize_entity)
860     {
861         // make a proxy initializer entity
862         entity e_old = e;
863         e = new(initialize_entity);
864         e.enemy = e_old;
865     }
866
867     e.initialize_entity = func;
868     e.initialize_entity_order = order;
869
870     cur = initialize_entity_first;
871     prev = world;
872     for (;;)
873     {
874         if (!cur || cur.initialize_entity_order > order)
875         {
876             // insert between prev and cur
877             if (prev)
878                 prev.initialize_entity_next = e;
879             else
880                 initialize_entity_first = e;
881             e.initialize_entity_next = cur;
882             return;
883         }
884         prev = cur;
885         cur = cur.initialize_entity_next;
886     }
887 }
888 void InitializeEntitiesRun()
889 {SELFPARAM();
890     entity startoflist = initialize_entity_first;
891     initialize_entity_first = NULL;
892     remove = remove_except_protected;
893     for (entity e = startoflist; e; e = e.initialize_entity_next)
894     {
895                 e.remove_except_protected_forbidden = 1;
896     }
897     for (entity e = startoflist; e; )
898     {
899                 e.remove_except_protected_forbidden = 0;
900         e.initialize_entity_order = 0;
901         entity next = e.initialize_entity_next;
902         e.initialize_entity_next = NULL;
903         var void() func = e.initialize_entity;
904         e.initialize_entity = func_null;
905         if (e.classname == "initialize_entity")
906         {
907             entity wrappee = e.enemy;
908             builtin_remove(e);
909             e = wrappee;
910         }
911         //dprint("Delayed initialization: ", e.classname, "\n");
912         if (func)
913         {
914                 WITH(entity, self, e, func());
915         }
916         else
917         {
918             eprint(e);
919             backtrace(strcat("Null function in: ", e.classname, "\n"));
920         }
921         e = next;
922     }
923     remove = remove_unsafely;
924 }
925
926 .float(entity) isEliminated;
927 bool EliminatedPlayers_SendEntity(entity this, entity to, float sendflags)
928 {
929         float i, f, b;
930         entity e;
931         WriteHeader(MSG_ENTITY, ENT_CLIENT_ELIMINATEDPLAYERS);
932         WriteByte(MSG_ENTITY, sendflags);
933
934         if(sendflags & 1)
935         {
936                 for(i = 1; i <= maxclients; i += 8)
937                 {
938                         for(f = 0, e = edict_num(i), b = 1; b < 256; b *= 2, e = nextent(e))
939                         {
940                                 if(eliminatedPlayers.isEliminated(e))
941                                         f |= b;
942                         }
943                         WriteByte(MSG_ENTITY, f);
944                 }
945         }
946
947         return true;
948 }
949
950 void EliminatedPlayers_Init(float(entity) isEliminated_func)
951 {
952         if(eliminatedPlayers)
953         {
954                 backtrace("Can't spawn eliminatedPlayers again!");
955                 return;
956         }
957         Net_LinkEntity(eliminatedPlayers = spawn(), false, 0, EliminatedPlayers_SendEntity);
958         eliminatedPlayers.isEliminated = isEliminated_func;
959 }
960
961
962 void adaptor_think2touch()
963 {SELFPARAM();
964     entity o;
965     o = other;
966     other = world;
967     self.touch();
968     other = o;
969 }
970
971 void adaptor_think2use()
972 {SELFPARAM();
973     entity o, a;
974     o = other;
975     a = activator;
976     activator = world;
977     other = world;
978     self.use();
979     other = o;
980     activator = a;
981 }
982
983 void adaptor_think2use_hittype_splash() // for timed projectile detonation
984 {SELFPARAM();
985         if(!(self.flags & FL_ONGROUND)) // if onground, we ARE touching something, but HITTYPE_SPLASH is to be networked if the damage causing projectile is not touching ANYTHING
986                 self.projectiledeathtype |= HITTYPE_SPLASH;
987         adaptor_think2use();
988 }
989
990 // deferred dropping
991 void DropToFloor_Handler()
992 {SELFPARAM();
993     builtin_droptofloor();
994     self.dropped_origin = self.origin;
995 }
996
997 void droptofloor()
998 {SELFPARAM();
999     InitializeEntity(self, DropToFloor_Handler, INITPRIO_DROPTOFLOOR);
1000 }
1001
1002
1003
1004 float trace_hits_box_a0, trace_hits_box_a1;
1005
1006 float trace_hits_box_1d(float end, float thmi, float thma)
1007 {
1008     if (end == 0)
1009     {
1010         // just check if x is in range
1011         if (0 < thmi)
1012             return false;
1013         if (0 > thma)
1014             return false;
1015     }
1016     else
1017     {
1018         // do the trace with respect to x
1019         // 0 -> end has to stay in thmi -> thma
1020         trace_hits_box_a0 = max(trace_hits_box_a0, min(thmi / end, thma / end));
1021         trace_hits_box_a1 = min(trace_hits_box_a1, max(thmi / end, thma / end));
1022         if (trace_hits_box_a0 > trace_hits_box_a1)
1023             return false;
1024     }
1025     return true;
1026 }
1027
1028 float trace_hits_box(vector start, vector end, vector thmi, vector thma)
1029 {
1030     end -= start;
1031     thmi -= start;
1032     thma -= start;
1033     // now it is a trace from 0 to end
1034
1035     trace_hits_box_a0 = 0;
1036     trace_hits_box_a1 = 1;
1037
1038     if (!trace_hits_box_1d(end.x, thmi.x, thma.x))
1039         return false;
1040     if (!trace_hits_box_1d(end.y, thmi.y, thma.y))
1041         return false;
1042     if (!trace_hits_box_1d(end.z, thmi.z, thma.z))
1043         return false;
1044
1045     return true;
1046 }
1047
1048 float tracebox_hits_box(vector start, vector mi, vector ma, vector end, vector thmi, vector thma)
1049 {
1050     return trace_hits_box(start, end, thmi - ma, thma - mi);
1051 }
1052
1053 float SUB_NoImpactCheck()
1054 {SELFPARAM();
1055         // zero hitcontents = this is not the real impact, but either the
1056         // mirror-impact of something hitting the projectile instead of the
1057         // projectile hitting the something, or a touchareagrid one. Neither of
1058         // these stop the projectile from moving, so...
1059         if(trace_dphitcontents == 0)
1060         {
1061                 //dprint("A hit happened with zero hit contents... DEBUG THIS, this should never happen for projectiles! Projectile will self-destruct.\n");
1062                 LOG_TRACEF("A hit from a projectile happened with no hit contents! DEBUG THIS, this should never happen for projectiles! Profectile will self-destruct. (edict: %d, classname: %s, origin: %s)\n", etof(self), self.classname, vtos(self.origin));
1063                 checkclient();
1064         }
1065     if (trace_dphitq3surfaceflags & Q3SURFACEFLAG_NOIMPACT)
1066         return 1;
1067     if (other == world && self.size != '0 0 0')
1068     {
1069         vector tic;
1070         tic = self.velocity * sys_frametime;
1071         tic = tic + normalize(tic) * vlen(self.maxs - self.mins);
1072         traceline(self.origin - tic, self.origin + tic, MOVE_NORMAL, self);
1073         if (trace_fraction >= 1)
1074         {
1075             LOG_TRACE("Odd... did not hit...?\n");
1076         }
1077         else if (trace_dphitq3surfaceflags & Q3SURFACEFLAG_NOIMPACT)
1078         {
1079             LOG_TRACE("Detected and prevented the sky-grapple bug.\n");
1080             return 1;
1081         }
1082     }
1083
1084     return 0;
1085 }
1086
1087 #define SUB_OwnerCheck() (other && (other == self.owner))
1088
1089 void W_Crylink_Dequeue(entity e);
1090 float WarpZone_Projectile_Touch_ImpactFilter_Callback()
1091 {SELFPARAM();
1092         if(SUB_OwnerCheck())
1093                 return true;
1094         if(SUB_NoImpactCheck())
1095         {
1096                 if(self.classname == "nade")
1097                         return false; // no checks here
1098                 else if(self.classname == "grapplinghook")
1099                         RemoveGrapplingHook(self.realowner);
1100                 else if(self.classname == "spike")
1101                 {
1102                         W_Crylink_Dequeue(self);
1103                         remove(self);
1104                 }
1105                 else
1106                         remove(self);
1107                 return true;
1108         }
1109         if(trace_ent && trace_ent.solid > SOLID_TRIGGER)
1110                 UpdateCSQCProjectile(self);
1111         return false;
1112 }
1113
1114 /** engine callback */
1115 void URI_Get_Callback(float id, float status, string data)
1116 {
1117         if(url_URI_Get_Callback(id, status, data))
1118         {
1119                 // handled
1120         }
1121         else if (id == URI_GET_DISCARD)
1122         {
1123                 // discard
1124         }
1125         else if (id >= URI_GET_CURL && id <= URI_GET_CURL_END)
1126         {
1127                 // sv_cmd curl
1128                 Curl_URI_Get_Callback(id, status, data);
1129         }
1130         else if (id >= URI_GET_IPBAN && id <= URI_GET_IPBAN_END)
1131         {
1132                 // online ban list
1133                 OnlineBanList_URI_Get_Callback(id, status, data);
1134         }
1135         else
1136         {
1137                 LOG_INFO("Received HTTP request data for an invalid id ", ftos(id), ".\n");
1138         }
1139 }
1140
1141 string uid2name(string myuid) {
1142         string s;
1143         s = db_get(ServerProgsDB, strcat("/uid2name/", myuid));
1144
1145         // FIXME remove this later after 0.6 release
1146         // convert old style broken records to correct style
1147         if(s == "")
1148         {
1149                 s = db_get(ServerProgsDB, strcat("uid2name", myuid));
1150                 if(s != "")
1151                 {
1152                         db_put(ServerProgsDB, strcat("/uid2name/", myuid), s);
1153                         db_remove(ServerProgsDB, strcat("uid2name", myuid));
1154                 }
1155         }
1156
1157         if(s == "")
1158                 s = "^1Unregistered Player";
1159         return s;
1160 }
1161
1162 float MoveToRandomLocationWithinBounds(entity e, vector boundmin, vector boundmax, float goodcontents, float badcontents, float badsurfaceflags, float attempts, float maxaboveground, float minviewdistance)
1163 {
1164     float m, i;
1165     vector start, org, delta, end, enddown, mstart;
1166     entity sp;
1167
1168     m = e.dphitcontentsmask;
1169     e.dphitcontentsmask = goodcontents | badcontents;
1170
1171     org = boundmin;
1172     delta = boundmax - boundmin;
1173
1174     start = end = org;
1175
1176     for (i = 0; i < attempts; ++i)
1177     {
1178         start.x = org.x + random() * delta.x;
1179         start.y = org.y + random() * delta.y;
1180         start.z = org.z + random() * delta.z;
1181
1182         // rule 1: start inside world bounds, and outside
1183         // solid, and don't start from somewhere where you can
1184         // fall down to evil
1185         tracebox(start, e.mins, e.maxs, start - '0 0 1' * delta.z, MOVE_NORMAL, e);
1186         if (trace_fraction >= 1)
1187             continue;
1188         if (trace_startsolid)
1189             continue;
1190         if (trace_dphitcontents & badcontents)
1191             continue;
1192         if (trace_dphitq3surfaceflags & badsurfaceflags)
1193             continue;
1194
1195         // rule 2: if we are too high, lower the point
1196         if (trace_fraction * delta.z > maxaboveground)
1197             start = trace_endpos + '0 0 1' * maxaboveground;
1198         enddown = trace_endpos;
1199
1200         // rule 3: make sure we aren't outside the map. This only works
1201         // for somewhat well formed maps. A good rule of thumb is that
1202         // the map should have a convex outside hull.
1203         // these can be traceLINES as we already verified the starting box
1204         mstart = start + 0.5 * (e.mins + e.maxs);
1205         traceline(mstart, mstart + '1 0 0' * delta.x, MOVE_NORMAL, e);
1206         if (trace_fraction >= 1 || trace_dphittexturename == "common/caulk")
1207             continue;
1208         traceline(mstart, mstart - '1 0 0' * delta.x, MOVE_NORMAL, e);
1209         if (trace_fraction >= 1 || trace_dphittexturename == "common/caulk")
1210             continue;
1211         traceline(mstart, mstart + '0 1 0' * delta.y, MOVE_NORMAL, e);
1212         if (trace_fraction >= 1 || trace_dphittexturename == "common/caulk")
1213             continue;
1214         traceline(mstart, mstart - '0 1 0' * delta.y, MOVE_NORMAL, e);
1215         if (trace_fraction >= 1 || trace_dphittexturename == "common/caulk")
1216             continue;
1217         traceline(mstart, mstart + '0 0 1' * delta.z, MOVE_NORMAL, e);
1218         if (trace_fraction >= 1 || trace_dphittexturename == "common/caulk")
1219             continue;
1220
1221         // rule 4: we must "see" some spawnpoint or item
1222         for(sp = world; (sp = find(sp, classname, "info_player_deathmatch")); )
1223                 if(checkpvs(mstart, sp))
1224                         if((traceline(mstart, sp.origin, MOVE_NORMAL, e), trace_fraction) >= 1)
1225                                 break;
1226         if(!sp)
1227         {
1228                 for(sp = world; (sp = findflags(sp, flags, FL_ITEM)); )
1229                         if(checkpvs(mstart, sp))
1230                                 if((traceline(mstart, sp.origin + (sp.mins + sp.maxs) * 0.5, MOVE_NORMAL, e), trace_fraction) >= 1)
1231                                         break;
1232                 if(!sp)
1233                         continue;
1234         }
1235
1236         // find a random vector to "look at"
1237         end.x = org.x + random() * delta.x;
1238         end.y = org.y + random() * delta.y;
1239         end.z = org.z + random() * delta.z;
1240         end = start + normalize(end - start) * vlen(delta);
1241
1242         // rule 4: start TO end must not be too short
1243         tracebox(start, e.mins, e.maxs, end, MOVE_NORMAL, e);
1244         if (trace_startsolid)
1245             continue;
1246         if (trace_fraction < minviewdistance / vlen(delta))
1247             continue;
1248
1249         // rule 5: don't want to look at sky
1250         if (trace_dphitq3surfaceflags & Q3SURFACEFLAG_SKY)
1251             continue;
1252
1253         // rule 6: we must not end up in trigger_hurt
1254         if (tracebox_hits_trigger_hurt(start, e.mins, e.maxs, enddown))
1255             continue;
1256
1257         break;
1258     }
1259
1260     e.dphitcontentsmask = m;
1261
1262     if (i < attempts)
1263     {
1264         setorigin(e, start);
1265         e.angles = vectoangles(end - start);
1266         LOG_TRACE("Needed ", ftos(i + 1), " attempts\n");
1267         return true;
1268     }
1269     else
1270         return false;
1271 }
1272
1273 float MoveToRandomMapLocation(entity e, float goodcontents, float badcontents, float badsurfaceflags, float attempts, float maxaboveground, float minviewdistance)
1274 {
1275         return MoveToRandomLocationWithinBounds(e, world.mins, world.maxs, goodcontents, badcontents, badsurfaceflags, attempts, maxaboveground, minviewdistance);
1276 }
1277
1278 void write_recordmarker(entity pl, float tstart, float dt)
1279 {
1280     GameLogEcho(strcat(":recordset:", ftos(pl.playerid), ":", ftos(dt)));
1281
1282     // also write a marker into demo files for demotc-race-record-extractor to find
1283     stuffcmd(pl,
1284              strcat(
1285                  strcat("//", strconv(2, 0, 0, GetGametype()), " RECORD SET ", TIME_ENCODED_TOSTRING(TIME_ENCODE(dt))),
1286                  " ", ftos(tstart), " ", ftos(dt), "\n"));
1287 }
1288
1289 void attach_sameorigin(entity e, entity to, string tag)
1290 {
1291     vector org, t_forward, t_left, t_up, e_forward, e_up;
1292     float tagscale;
1293
1294     org = e.origin - gettaginfo(to, gettagindex(to, tag));
1295     tagscale = pow(vlen(v_forward), -2); // undo a scale on the tag
1296     t_forward = v_forward * tagscale;
1297     t_left = v_right * -tagscale;
1298     t_up = v_up * tagscale;
1299
1300     e.origin_x = org * t_forward;
1301     e.origin_y = org * t_left;
1302     e.origin_z = org * t_up;
1303
1304     // current forward and up directions
1305     if (substring(e.model, 0, 1) == "*") // bmodels have their own rules
1306                 e.angles = AnglesTransform_FromVAngles(e.angles);
1307         else
1308                 e.angles = AnglesTransform_FromAngles(e.angles);
1309     fixedmakevectors(e.angles);
1310
1311     // untransform forward, up!
1312     e_forward.x = v_forward * t_forward;
1313     e_forward.y = v_forward * t_left;
1314     e_forward.z = v_forward * t_up;
1315     e_up.x = v_up * t_forward;
1316     e_up.y = v_up * t_left;
1317     e_up.z = v_up * t_up;
1318
1319     e.angles = fixedvectoangles2(e_forward, e_up);
1320     if (substring(e.model, 0, 1) == "*") // bmodels have their own rules
1321                 e.angles = AnglesTransform_ToVAngles(e.angles);
1322         else
1323                 e.angles = AnglesTransform_ToAngles(e.angles);
1324
1325     setattachment(e, to, tag);
1326     setorigin(e, e.origin);
1327 }
1328
1329 void detach_sameorigin(entity e)
1330 {
1331     vector org;
1332     org = gettaginfo(e, 0);
1333     e.angles = fixedvectoangles2(v_forward, v_up);
1334     if (substring(e.model, 0, 1) == "*") // bmodels have their own rules
1335                 e.angles = AnglesTransform_ToVAngles(e.angles);
1336         else
1337                 e.angles = AnglesTransform_ToAngles(e.angles);
1338     setorigin(e, org);
1339     setattachment(e, world, "");
1340     setorigin(e, e.origin);
1341 }
1342
1343 void follow_sameorigin(entity e, entity to)
1344 {
1345     e.movetype = MOVETYPE_FOLLOW; // make the hole follow
1346     e.aiment = to; // make the hole follow bmodel
1347     e.punchangle = to.angles; // the original angles of bmodel
1348     e.view_ofs = e.origin - to.origin; // relative origin
1349     e.v_angle = e.angles - to.angles; // relative angles
1350 }
1351
1352 void unfollow_sameorigin(entity e)
1353 {
1354     e.movetype = MOVETYPE_NONE;
1355 }
1356
1357 entity gettaginfo_relative_ent;
1358 vector gettaginfo_relative(entity e, float tag)
1359 {
1360     if (!gettaginfo_relative_ent)
1361     {
1362         gettaginfo_relative_ent = spawn();
1363         gettaginfo_relative_ent.effects = EF_NODRAW;
1364     }
1365     gettaginfo_relative_ent.model = e.model;
1366     gettaginfo_relative_ent.modelindex = e.modelindex;
1367     gettaginfo_relative_ent.frame = e.frame;
1368     return gettaginfo(gettaginfo_relative_ent, tag);
1369 }
1370
1371 .string aiment_classname;
1372 .float aiment_deadflag;
1373 void SetMovetypeFollow(entity ent, entity e)
1374 {
1375         // FIXME this may not be warpzone aware
1376         ent.movetype = MOVETYPE_FOLLOW; // make the hole follow
1377         ent.solid = SOLID_NOT; // MOVETYPE_FOLLOW is always non-solid - this means this cannot be teleported by warpzones any more! Instead, we must notice when our owner gets teleported.
1378         ent.aiment = e; // make the hole follow bmodel
1379         ent.punchangle = e.angles; // the original angles of bmodel
1380         ent.view_ofs = ent.origin - e.origin; // relative origin
1381         ent.v_angle = ent.angles - e.angles; // relative angles
1382         ent.aiment_classname = strzone(e.classname);
1383         ent.aiment_deadflag = e.deadflag;
1384 }
1385 void UnsetMovetypeFollow(entity ent)
1386 {
1387         ent.movetype = MOVETYPE_FLY;
1388         PROJECTILE_MAKETRIGGER(ent);
1389         ent.aiment = world;
1390 }
1391 float LostMovetypeFollow(entity ent)
1392 {
1393 /*
1394         if(ent.movetype != MOVETYPE_FOLLOW)
1395                 if(ent.aiment)
1396                         error("???");
1397 */
1398         if(ent.aiment)
1399         {
1400                 if(ent.aiment.classname != ent.aiment_classname)
1401                         return 1;
1402                 if(ent.aiment.deadflag != ent.aiment_deadflag)
1403                         return 1;
1404         }
1405         return 0;
1406 }
1407
1408 float isPushable(entity e)
1409 {
1410         if(e.pushable)
1411                 return true;
1412         if(IS_VEHICLE(e))
1413                 return false;
1414         if(e.iscreature)
1415                 return true;
1416         switch(e.classname)
1417         {
1418                 case "body":
1419                 case "droppedweapon":
1420                 case "keepawayball":
1421                 case "nexball_basketball":
1422                 case "nexball_football":
1423                         return true;
1424                 case "bullet": // antilagged bullets can't hit this either
1425                         return false;
1426         }
1427         if (e.projectiledeathtype)
1428                 return true;
1429         return false;
1430 }