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1 /*
2 ===========================================================================
3
4   CLIENT WEAPONSYSTEM CODE
5   Bring back W_Weaponframe
6
7 ===========================================================================
8 */
9
10 .float weapon_frametime;
11
12 float W_WeaponRateFactor()
13 {
14         float t;
15         t = 1.0 / g_weaponratefactor;
16
17         if(g_runematch)
18         {
19                 if(self.runes & RUNE_SPEED)
20                 {
21                         if(self.runes & CURSE_SLOW)
22                                 t = t * autocvar_g_balance_rune_speed_combo_atkrate;
23                         else
24                                 t = t * autocvar_g_balance_rune_speed_atkrate;
25                 }
26                 else if(self.runes & CURSE_SLOW)
27                 {
28                         t = t * autocvar_g_balance_curse_slow_atkrate;
29                 }
30         }
31
32         return t;
33 }
34
35 void W_SwitchWeapon_Force(entity e, float w)
36 {
37         e.cnt = e.switchweapon;
38         e.switchweapon = w;
39         e.selectweapon = w;
40 }
41
42 .float antilag_debug;
43
44 // VorteX: static frame globals
45 float WFRAME_DONTCHANGE = -1;
46 float WFRAME_FIRE1 = 0;
47 float WFRAME_FIRE2 = 1;
48 float WFRAME_IDLE = 2;
49 float WFRAME_RELOAD = 3;
50 .float wframe;
51
52 void(float fr, float t, void() func) weapon_thinkf;
53
54 vector W_HitPlotUnnormalizedUntransform(vector screenforward, vector screenright, vector screenup, vector v)
55 {
56         vector ret;
57         ret_x = screenright * v;
58         ret_y = screenup * v;
59         ret_z = screenforward * v;
60         return ret;
61 }
62
63 vector W_HitPlotNormalizedUntransform(vector org, entity targ, vector screenforward, vector screenright, vector screenup, vector v)
64 {
65         float i, j, k;
66         vector mi, ma, thisv, myv, ret;
67
68         myv = W_HitPlotUnnormalizedUntransform(screenforward, screenright, screenup, org);
69
70         // x = 0..1 relative to hitbox; y = 0..1 relative to hitbox; z = distance
71
72         for(i = 0; i < 2; ++i) for(j = 0; j < 2; ++j) for(k = 0; k < 2; ++k)
73         {
74                 thisv = targ.origin;
75                 if(i) thisv_x += targ.maxs_x; else thisv_x += targ.mins_x;
76                 if(j) thisv_y += targ.maxs_y; else thisv_y += targ.mins_y;
77                 if(k) thisv_z += targ.maxs_z; else thisv_z += targ.mins_z;
78                 thisv = W_HitPlotUnnormalizedUntransform(screenforward, screenright, screenup, thisv);
79                 if(i || j || k)
80                 {
81                         if(mi_x > thisv_x) mi_x = thisv_x; if(ma_x < thisv_x) ma_x = thisv_x;
82                         if(mi_y > thisv_y) mi_y = thisv_y; if(ma_y < thisv_y) ma_y = thisv_y;
83                         //if(mi_z > thisv_z) mi_z = thisv_z; if(ma_z < thisv_z) ma_y = thisv_z;
84                 }
85                 else
86                 {
87                         // first run
88                         mi = ma = thisv;
89                 }
90         }
91
92         thisv = W_HitPlotUnnormalizedUntransform(screenforward, screenright, screenup, v);
93         ret_x = (thisv_x - mi_x) / (ma_x - mi_x);
94         ret_y = (thisv_y - mi_y) / (ma_y - mi_y);
95         ret_z = thisv_z - myv_z;
96         return ret;
97 }
98
99 void W_HitPlotAnalysis(entity player, vector screenforward, vector screenright, vector screenup)
100 {
101         vector hitplot;
102         vector org;
103         float lag;
104
105         if(player.hitplotfh >= 0)
106         {
107                 lag = ANTILAG_LATENCY(player);
108                 if(lag < 0.001)
109                         lag = 0;
110                 if(clienttype(player) != CLIENTTYPE_REAL)
111                         lag = 0; // only antilag for clients
112
113                 org = player.origin + player.view_ofs;
114                 traceline_antilag_force(player, org, org + screenforward * MAX_SHOT_DISTANCE, MOVE_NORMAL, player, lag);
115                 if(trace_ent.flags & FL_CLIENT)
116                 {
117                         antilag_takeback(trace_ent, time - lag);
118                         hitplot = W_HitPlotNormalizedUntransform(org, trace_ent, screenforward, screenright, screenup, trace_endpos);
119                         antilag_restore(trace_ent);
120                         fputs(player.hitplotfh, strcat(ftos(hitplot_x), " ", ftos(hitplot_y), " ", ftos(hitplot_z), " ", ftos(player.switchweapon), "\n"));
121                         //print(strcat(ftos(hitplot_x), " ", ftos(hitplot_y), " ", ftos(hitplot_z), "\n"));
122                 }
123         }
124 }
125
126 vector w_shotorg;
127 vector w_shotdir;
128 vector w_shotend;
129
130 .float prevstrengthsound;
131 .float prevstrengthsoundattempt;
132 void W_PlayStrengthSound(entity player) // void W_PlayStrengthSound
133 {
134                 if((!g_minstagib)
135                         && (player.items & IT_STRENGTH)
136                         && ((time > player.prevstrengthsound + autocvar_sv_strengthsound_antispam_time) // prevent insane sound spam
137                         || (time > player.prevstrengthsoundattempt + autocvar_sv_strengthsound_antispam_refire_threshold)))
138                 {
139                         sound(player, CH_TRIGGER, "weapons/strength_fire.wav", VOL_BASE, ATTN_NORM);
140                         player.prevstrengthsound = time;
141                 }
142                 player.prevstrengthsoundattempt = time;
143 }
144
145 // this function calculates w_shotorg and w_shotdir based on the weapon model
146 // offset, trueaim and antilag, and won't put w_shotorg inside a wall.
147 // make sure you call makevectors first (FIXME?)
148 void W_SetupShot_Dir_ProjectileSize_Range(entity ent, vector s_forward, vector mi, vector ma, float antilag, float recoil, string snd, float chan, float maxdamage, float range)
149 {
150         float nudge = 1; // added to traceline target and subtracted from result
151         float oldsolid;
152         vector vecs, dv;
153         oldsolid = ent.dphitcontentsmask;
154         if(ent.weapon == WEP_RIFLE)
155                 ent.dphitcontentsmask = DPCONTENTS_BODY | DPCONTENTS_CORPSE;
156         else
157                 ent.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_CORPSE;
158         if(antilag)
159                 WarpZone_traceline_antilag(world, ent.origin + ent.view_ofs, ent.origin + ent.view_ofs + s_forward * range, MOVE_NORMAL, ent, ANTILAG_LATENCY(ent));
160                 // passing world, because we do NOT want it to touch dphitcontentsmask
161         else
162                 WarpZone_TraceLine(ent.origin + ent.view_ofs, ent.origin + ent.view_ofs + s_forward * range, MOVE_NOMONSTERS, ent);
163         ent.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_CORPSE;
164
165         vector vf, vr, vu;
166         vf = v_forward;
167         vr = v_right;
168         vu = v_up;
169         w_shotend = WarpZone_UnTransformOrigin(WarpZone_trace_transform, trace_endpos); // warpzone support
170         v_forward = vf;
171         v_right = vr;
172         v_up = vu;
173
174         // un-adjust trueaim if shotend is too close
175         if(vlen(w_shotend - (ent.origin + ent.view_ofs)) < autocvar_g_trueaim_minrange)
176                 w_shotend = ent.origin + ent.view_ofs + s_forward * autocvar_g_trueaim_minrange;
177
178         // track max damage
179         if(accuracy_canbegooddamage(ent))
180                 accuracy_add(ent, ent.weapon, maxdamage, 0);
181
182         W_HitPlotAnalysis(ent, v_forward, v_right, v_up);
183
184         if(ent.weaponentity.movedir_x > 0)
185                 vecs = ent.weaponentity.movedir;
186         else
187                 vecs = '0 0 0';
188
189         dv = v_right * -vecs_y + v_up * vecs_z;
190         w_shotorg = ent.origin + ent.view_ofs + dv;
191
192         // now move the shotorg forward as much as requested if possible
193         if(antilag)
194         {
195                 if(ent.antilag_debug)
196                         tracebox_antilag(ent, w_shotorg, mi, ma, w_shotorg + v_forward * (vecs_x + nudge), MOVE_NORMAL, ent, ent.antilag_debug);
197                 else
198                         tracebox_antilag(ent, w_shotorg, mi, ma, w_shotorg + v_forward * (vecs_x + nudge), MOVE_NORMAL, ent, ANTILAG_LATENCY(ent));
199         }
200         else
201                 tracebox(w_shotorg, mi, ma, w_shotorg + v_forward * (vecs_x + nudge), MOVE_NORMAL, ent);
202         w_shotorg = trace_endpos - v_forward * nudge;
203         // calculate the shotdir from the chosen shotorg
204         w_shotdir = normalize(w_shotend - w_shotorg);
205
206         if (antilag)
207         if (!ent.cvar_cl_noantilag)
208         {
209                 if (autocvar_g_antilag == 1) // switch to "ghost" if not hitting original
210                 {
211                         traceline(w_shotorg, w_shotorg + w_shotdir * range, MOVE_NORMAL, ent);
212                         if (!trace_ent.takedamage)
213                         {
214                                 traceline_antilag_force (ent, w_shotorg, w_shotorg + w_shotdir * range, MOVE_NORMAL, ent, ANTILAG_LATENCY(ent));
215                                 if (trace_ent.takedamage && trace_ent.classname == "player")
216                                 {
217                                         entity e;
218                                         e = trace_ent;
219                                         traceline(w_shotorg, e.origin, MOVE_NORMAL, ent);
220                                         if(trace_ent == e)
221                                                 w_shotdir = normalize(trace_ent.origin - w_shotorg);
222                                 }
223                         }
224                 }
225                 else if(autocvar_g_antilag == 3) // client side hitscan
226                 {
227                         // this part MUST use prydon cursor
228                         if (ent.cursor_trace_ent)                 // client was aiming at someone
229                         if (ent.cursor_trace_ent != ent)         // just to make sure
230                         if (ent.cursor_trace_ent.takedamage)      // and that person is killable
231                         if (ent.cursor_trace_ent.classname == "player") // and actually a player
232                         {
233                                 // verify that the shot would miss without antilag
234                                 // (avoids an issue where guns would always shoot at their origin)
235                                 traceline(w_shotorg, w_shotorg + w_shotdir * range, MOVE_NORMAL, ent);
236                                 if (!trace_ent.takedamage)
237                                 {
238                                         // verify that the shot would hit if altered
239                                         traceline(w_shotorg, ent.cursor_trace_ent.origin, MOVE_NORMAL, ent);
240                                         if (trace_ent == ent.cursor_trace_ent)
241                                                 w_shotdir = normalize(ent.cursor_trace_ent.origin - w_shotorg);
242                                         else
243                                                 print("antilag fail\n");
244                                 }
245                         }
246                 }
247         }
248
249         ent.dphitcontentsmask = oldsolid; // restore solid type (generally SOLID_SLIDEBOX)
250
251         if (!g_norecoil)
252                 ent.punchangle_x = recoil * -1;
253
254         if (snd != "")
255         {
256                 sound (ent, chan, snd, VOL_BASE, ATTN_NORM);
257                 W_PlayStrengthSound(ent);
258         }
259
260         // nudge w_shotend so a trace to w_shotend hits
261         w_shotend = w_shotend + normalize(w_shotend - w_shotorg) * nudge;
262 }
263
264 #define W_SetupShot_Dir_ProjectileSize(ent,s_forward,mi,ma,antilag,recoil,snd,chan,maxdamage) W_SetupShot_Dir_ProjectileSize_Range(ent, s_forward, mi, ma, antilag, recoil, snd, chan, maxdamage, MAX_SHOT_DISTANCE)
265 #define W_SetupShot_ProjectileSize(ent,mi,ma,antilag,recoil,snd,chan,maxdamage) W_SetupShot_Dir_ProjectileSize(ent, v_forward, mi, ma, antilag, recoil, snd, chan, maxdamage)
266 #define W_SetupShot_Dir(ent,s_forward,antilag,recoil,snd,chan,maxdamage) W_SetupShot_Dir_ProjectileSize(ent, s_forward, '0 0 0', '0 0 0', antilag, recoil, snd, chan, maxdamage)
267 #define W_SetupShot(ent,antilag,recoil,snd,chan,maxdamage) W_SetupShot_ProjectileSize(ent, '0 0 0', '0 0 0', antilag, recoil, snd, chan, maxdamage)
268 #define W_SetupShot_Range(ent,antilag,recoil,snd,chan,maxdamage,range) W_SetupShot_Dir_ProjectileSize_Range(ent, v_forward, '0 0 0', '0 0 0', antilag, recoil, snd, chan, maxdamage, range)
269
270 float CL_Weaponentity_CustomizeEntityForClient()
271 {
272         self.viewmodelforclient = self.owner;
273         if(other.classname == "spectator")
274                 if(other.enemy == self.owner)
275                         self.viewmodelforclient = other;
276         return TRUE;
277 }
278
279 /*
280  * supported formats:
281  *
282  * 1. simple animated model, muzzle flash handling on h_ model:
283  *    h_tuba.dpm, h_tuba.dpm.framegroups - invisible model controlling the animation
284  *      tags:
285  *        shot = muzzle end (shot origin, also used for muzzle flashes)
286  *        shell = casings ejection point (must be on the right hand side of the gun)
287  *        weapon = attachment for v_tuba.md3
288  *    v_tuba.md3 - first and third person model
289  *    g_tuba.md3 - pickup model
290  *
291  * 2. simple animated model, muzzle flash handling on v_ model:
292  *    h_tuba.dpm, h_tuba.dpm.framegroups - invisible model controlling the animation
293  *      tags:
294  *        weapon = attachment for v_tuba.md3
295  *    v_tuba.md3 - first and third person model
296  *      tags:
297  *        shot = muzzle end (shot origin, also used for muzzle flashes)
298  *        shell = casings ejection point (must be on the right hand side of the gun)
299  *    g_tuba.md3 - pickup model
300  *
301  * 3. fully animated model, muzzle flash handling on h_ model:
302  *    h_tuba.dpm, h_tuba.dpm.framegroups - animated first person model
303  *      tags:
304  *        shot = muzzle end (shot origin, also used for muzzle flashes)
305  *        shell = casings ejection point (must be on the right hand side of the gun)
306  *        handle = corresponding to the origin of v_tuba.md3 (used for muzzle flashes)
307  *    v_tuba.md3 - third person model
308  *    g_tuba.md3 - pickup model
309  *
310  * 4. fully animated model, muzzle flash handling on v_ model:
311  *    h_tuba.dpm, h_tuba.dpm.framegroups - animated first person model
312  *      tags:
313  *        shot = muzzle end (shot origin)
314  *        shell = casings ejection point (must be on the right hand side of the gun)
315  *    v_tuba.md3 - third person model
316  *      tags:
317  *        shot = muzzle end (for muzzle flashes)
318  *    g_tuba.md3 - pickup model
319  */
320
321 // writes:
322 //   self.origin, self.angles
323 //   self.weaponentity
324 //   self.movedir, self.view_ofs
325 //   attachment stuff
326 //   anim stuff
327 // to free:
328 //   call again with ""
329 //   remove the ent
330 void CL_WeaponEntity_SetModel(string name)
331 {
332         float v_shot_idx;
333         if (name != "")
334         {
335                 // if there is a child entity, hide it until we're sure we use it
336                 if (self.weaponentity)
337                         self.weaponentity.model = "";
338                 setmodel(self, strcat("models/weapons/v_", name, ".md3")); // precision set below
339                 v_shot_idx = gettagindex(self, "shot"); // used later
340                 if(!v_shot_idx)
341                         v_shot_idx = gettagindex(self, "tag_shot");
342
343                 setmodel(self, strcat("models/weapons/h_", name, ".iqm")); // precision set below
344                 // preset some defaults that work great for renamed zym files (which don't need an animinfo)
345                 self.anim_fire1  = animfixfps(self, '0 1 0.01');
346                 self.anim_fire2  = animfixfps(self, '1 1 0.01');
347                 self.anim_idle   = animfixfps(self, '2 1 0.01');
348                 self.anim_reload = animfixfps(self, '3 1 0.01');
349
350                 // if we have a "weapon" tag, let's attach the v_ model to it ("invisible hand" style model)
351                 // if we don't, this is a "real" animated model
352                 if(gettagindex(self, "weapon"))
353                 {
354                         if (!self.weaponentity)
355                                 self.weaponentity = spawn();
356                         setmodel(self.weaponentity, strcat("models/weapons/v_", name, ".md3")); // precision does not matter
357                         setattachment(self.weaponentity, self, "weapon");
358                 }
359                 else if(gettagindex(self, "tag_weapon"))
360                 {
361                         if (!self.weaponentity)
362                                 self.weaponentity = spawn();
363                         setmodel(self.weaponentity, strcat("models/weapons/v_", name, ".md3")); // precision does not matter
364                         setattachment(self.weaponentity, self, "tag_weapon");
365                 }
366                 else
367                 {
368                         if(self.weaponentity)
369                                 remove(self.weaponentity);
370                         self.weaponentity = world;
371                 }
372
373                 setorigin(self,'0 0 0');
374                 self.angles = '0 0 0';
375                 self.frame = 0;
376                 self.viewmodelforclient = world;
377
378                 float idx;
379
380                 if(v_shot_idx) // v_ model attached to invisible h_ model
381                 {
382                         self.movedir = gettaginfo(self.weaponentity, v_shot_idx);
383                 }
384                 else
385                 {
386                         idx = gettagindex(self, "shot");
387                         if(!idx)
388                                 idx = gettagindex(self, "tag_shot");
389                         if(idx)
390                                 self.movedir = gettaginfo(self, idx);
391                         else
392                         {
393                                 print("WARNING: weapon model ", self.model, " does not support the 'shot' tag, will display shots TOTALLY wrong\n");
394                                 self.movedir = '0 0 0';
395                         }
396                 }
397
398                 if(self.weaponentity) // v_ model attached to invisible h_ model
399                 {
400                         idx = gettagindex(self.weaponentity, "shell");
401                         if(!idx)
402                                 idx = gettagindex(self.weaponentity, "tag_shell");
403                         if(idx)
404                                 self.spawnorigin = gettaginfo(self.weaponentity, idx);
405                 }
406                 else
407                         idx = 0;
408                 if(!idx)
409                 {
410                         idx = gettagindex(self, "shell");
411                         if(!idx)
412                                 idx = gettagindex(self, "tag_shell");
413                         if(idx)
414                                 self.spawnorigin = gettaginfo(self, idx);
415                         else
416                         {
417                                 print("WARNING: weapon model ", self.model, " does not support the 'shell' tag, will display casings wrong\n");
418                                 self.spawnorigin = self.movedir;
419                         }
420                 }
421
422                 if(v_shot_idx)
423                 {
424                         self.oldorigin = '0 0 0'; // use regular attachment
425                 }
426                 else
427                 {
428                         if(self.weaponentity)
429                         {
430                                 idx = gettagindex(self, "weapon");
431                                 if(!idx)
432                                         idx = gettagindex(self, "tag_weapon");
433                         }
434                         else
435                         {
436                                 idx = gettagindex(self, "handle");
437                                 if(!idx)
438                                         idx = gettagindex(self, "tag_handle");
439                         }
440                         if(idx)
441                         {
442                                 self.oldorigin = self.movedir - gettaginfo(self, idx);
443                         }
444                         else
445                         {
446                                 print("WARNING: weapon model ", self.model, " does not support the 'handle' tag and neither does the v_ model support the 'shot' tag, will display muzzle flashes TOTALLY wrong\n");
447                                 self.oldorigin = '0 0 0'; // there is no way to recover from this
448                         }
449                 }
450
451                 self.viewmodelforclient = self.owner;
452         }
453         else
454         {
455                 self.model = "";
456                 if(self.weaponentity)
457                         remove(self.weaponentity);
458                 self.weaponentity = world;
459                 self.movedir = '0 0 0';
460                 self.spawnorigin = '0 0 0';
461                 self.oldorigin = '0 0 0';
462                 self.anim_fire1  = '0 1 0.01';
463                 self.anim_fire2  = '0 1 0.01';
464                 self.anim_idle   = '0 1 0.01';
465                 self.anim_reload = '0 1 0.01';
466         }
467
468         self.view_ofs = '0 0 0';
469
470         if(self.movedir_x >= 0)
471         {
472                 vector v0;
473                 v0 = self.movedir;
474                 self.movedir = shotorg_adjust(v0, FALSE, FALSE);
475                 self.view_ofs = shotorg_adjust(v0, FALSE, TRUE) - v0;
476         }
477         self.owner.stat_shotorg = compressShotOrigin(self.movedir);
478         self.movedir = decompressShotOrigin(self.owner.stat_shotorg); // make them match perfectly
479
480         self.spawnorigin += self.view_ofs; // offset the casings origin by the same amount
481
482         // check if an instant weapon switch occurred
483         setorigin(self, self.view_ofs);
484         // reset animstate now
485         self.wframe = WFRAME_IDLE;
486         setanim(self, self.anim_idle, TRUE, FALSE, TRUE);
487 }
488
489 vector CL_Weapon_GetShotOrg(float wpn)
490 {
491         entity wi, oldself;
492         vector ret;
493         wi = get_weaponinfo(wpn);
494         oldself = self;
495         self = spawn();
496         CL_WeaponEntity_SetModel(wi.mdl);
497         ret = self.movedir;
498         CL_WeaponEntity_SetModel("");
499         remove(self);
500         self = oldself;
501         return ret;
502 }
503
504 void CL_Weaponentity_Think()
505 {
506         float tb;
507         self.nextthink = time;
508         if (intermission_running)
509                 self.frame = self.anim_idle_x;
510         if (self.owner.weaponentity != self)
511         {
512                 if (self.weaponentity)
513                         remove(self.weaponentity);
514                 remove(self);
515                 return;
516         }
517         if (self.owner.deadflag != DEAD_NO)
518         {
519                 self.model = "";
520                 if (self.weaponentity)
521                         self.weaponentity.model = "";
522                 return;
523         }
524         if (self.weaponname != self.owner.weaponname || self.dmg != self.owner.modelindex || self.deadflag != self.owner.deadflag)
525         {
526                 self.weaponname = self.owner.weaponname;
527                 self.dmg = self.owner.modelindex;
528                 self.deadflag = self.owner.deadflag;
529
530                 CL_WeaponEntity_SetModel(self.owner.weaponname);
531         }
532
533         tb = (self.effects & (EF_TELEPORT_BIT | EF_RESTARTANIM_BIT));
534         self.effects = self.owner.effects & EFMASK_CHEAP;
535         self.effects &~= EF_LOWPRECISION;
536         self.effects &~= EF_FULLBRIGHT; // can mask team color, so get rid of it
537         self.effects &~= EF_TELEPORT_BIT;
538         self.effects &~= EF_RESTARTANIM_BIT;
539         self.effects |= tb;
540
541         if(self.owner.alpha == default_player_alpha)
542                 self.alpha = default_weapon_alpha;
543         else if(self.owner.alpha != 0)
544                 self.alpha = self.owner.alpha;
545         else
546                 self.alpha = 1;
547
548         self.glowmod = self.owner.weaponentity_glowmod;
549         self.colormap = self.owner.colormap;
550         if (self.weaponentity)
551         {
552                 self.weaponentity.effects = self.effects;
553                 self.weaponentity.alpha = self.alpha;
554                 self.weaponentity.colormap = self.colormap;
555                 self.weaponentity.glowmod = self.glowmod;
556         }
557
558         self.angles = '0 0 0';
559         float f;
560         f = 0;
561         if (self.state == WS_RAISE && !intermission_running)
562         {
563                 f = (self.owner.weapon_nextthink - time) * g_weaponratefactor / autocvar_g_balance_weaponswitchdelay;
564                 self.angles_x = -90 * f * f;
565         }
566         else if (self.state == WS_DROP && !intermission_running)
567         {
568                 f = 1 - (self.owner.weapon_nextthink - time) * g_weaponratefactor / autocvar_g_balance_weaponswitchdelay;
569                 self.angles_x = -90 * f * f;
570         }
571         else if (self.state == WS_CLEAR)
572         {
573                 f = 1;
574                 self.angles_x = -90 * f * f;
575         }
576 }
577
578 void CL_ExteriorWeaponentity_Think()
579 {
580         float tag_found;
581         vector ang;
582         self.nextthink = time;
583         if (self.owner.exteriorweaponentity != self)
584         {
585                 remove(self);
586                 return;
587         }
588         if (self.owner.deadflag != DEAD_NO)
589         {
590                 self.model = "";
591                 return;
592         }
593         if (self.weaponname != self.owner.weaponname || self.dmg != self.owner.modelindex || self.deadflag != self.owner.deadflag)
594         {
595                 self.weaponname = self.owner.weaponname;
596                 self.dmg = self.owner.modelindex;
597                 self.deadflag = self.owner.deadflag;
598                 if (self.owner.weaponname != "")
599                         setmodel(self, strcat("models/weapons/v_", self.owner.weaponname, ".md3")); // precision set below
600                 else
601                         self.model = "";
602
603                 if((tag_found = gettagindex(self.owner, "tag_weapon")))
604                 {
605                         self.tag_index = tag_found;
606                         self.tag_entity = self.owner;
607                 }
608                 else
609                         setattachment(self, self.owner, "bip01 r hand");
610
611                 // if that didn't find a tag, hide the exterior weapon model
612                 if (!self.tag_index)
613                         self.model = "";
614         }
615         self.effects = self.owner.effects;
616         if(sv_pitch_min == sv_pitch_max)
617                 self.effects |= EF_LOWPRECISION;
618         else
619                 self.effects &~= EF_LOWPRECISION;
620         self.effects = self.effects & EFMASK_CHEAP; // eat performance
621         if(self.owner.alpha == default_player_alpha)
622                 self.alpha = default_weapon_alpha;
623         else if(self.owner.alpha != 0)
624                 self.alpha = self.owner.alpha;
625         else
626                 self.alpha = 1;
627
628         if (!intermission_running)
629         {
630                 ang_x = bound(sv_pitch_min, self.owner.v_angle_x, sv_pitch_max);
631                 ang_y = 0;
632                 ang_z = 0;
633
634                 if(sv_pitch_fixyaw) // workaround for stupid player models that don't aim forward
635                 {
636                         ang_y = self.owner.v_angle_y;
637                         makevectors(ang);
638                         var vector v = v_forward;
639                         var float t = self.tag_entity.frame1time;
640                         var float f = self.tag_entity.frame;
641                         self.tag_entity.frame1time = time;
642                         self.tag_entity.frame = self.tag_entity.anim_idle_x;
643                         gettaginfo(self.tag_entity, self.tag_index);
644                         self.tag_entity.frame1time = t;
645                         self.tag_entity.frame = f;
646                         // untransform v according to this coordinate space
647                         vector w;
648                         w_x = v_forward * v;
649                         w_y = -v_right * v;
650                         w_z = v_up * v;
651                         self.angles = vectoangles(w);
652                 }
653                 else
654                 {
655                         ang_x = -/* don't ask */ang_x;
656                         self.angles = ang;
657                 }
658
659                 if(autocvar_g_loituma)
660                 {
661                         vector modangles;
662                         float t;
663
664                         t = time * autocvar_g_loituma;
665
666                         modangles_x = t * 360;
667                         modangles_y = 90;
668                         modangles_z = 0;
669
670                         self.angles =
671                                 AnglesTransform_ToAngles(
672                                         AnglesTransform_Multiply(
673                                                 AnglesTransform_FromAngles(self.angles),
674                                                 AnglesTransform_FromAngles(modangles)
675                                         )
676                                 );
677                 }
678         }
679
680         self.glowmod = self.owner.weaponentity_glowmod;
681         self.colormap = self.owner.colormap;
682 }
683
684 // spawning weaponentity for client
685 void CL_SpawnWeaponentity()
686 {
687         self.weaponentity = spawn();
688         self.weaponentity.classname = "weaponentity";
689         self.weaponentity.solid = SOLID_NOT;
690         self.weaponentity.owner = self;
691         setmodel(self.weaponentity, ""); // precision set when changed
692         setorigin(self.weaponentity, '0 0 0');
693         self.weaponentity.angles = '0 0 0';
694         self.weaponentity.viewmodelforclient = self;
695         self.weaponentity.flags = 0;
696         self.weaponentity.think = CL_Weaponentity_Think;
697         self.weaponentity.customizeentityforclient = CL_Weaponentity_CustomizeEntityForClient;
698         self.weaponentity.nextthink = time;
699
700         self.exteriorweaponentity = spawn();
701         self.exteriorweaponentity.classname = "exteriorweaponentity";
702         self.exteriorweaponentity.solid = SOLID_NOT;
703         self.exteriorweaponentity.exteriorweaponentity = self.exteriorweaponentity;
704         self.exteriorweaponentity.owner = self;
705         setorigin(self.exteriorweaponentity, '0 0 0');
706         self.exteriorweaponentity.angles = '0 0 0';
707         self.exteriorweaponentity.think = CL_ExteriorWeaponentity_Think;
708         self.exteriorweaponentity.nextthink = time;
709 }
710
711 void Send_WeaponComplain (entity e, float wpn, string wpnname, float type)
712 {
713         msg_entity = e;
714         WriteByte(MSG_ONE, SVC_TEMPENTITY);
715         WriteByte(MSG_ONE, TE_CSQC_WEAPONCOMPLAIN);
716         WriteByte(MSG_ONE, wpn);
717         WriteString(MSG_ONE, wpnname);
718         WriteByte(MSG_ONE, type);
719 }
720
721 .float hasweapon_complain_spam;
722
723 float client_hasweapon(entity cl, float wpn, float andammo, float complain)
724 {
725         float weaponbit, f;
726         entity oldself;
727
728         if(time < self.hasweapon_complain_spam)
729                 complain = 0;
730         if(complain)
731                 self.hasweapon_complain_spam = time + 0.2;
732
733         if (wpn < WEP_FIRST || wpn > WEP_LAST)
734         {
735                 if (complain)
736                         sprint(self, "Invalid weapon\n");
737                 return FALSE;
738         }
739         weaponbit = W_WeaponBit(wpn);
740         if (cl.weapons & weaponbit)
741         {
742                 if (andammo)
743                 {
744                         if(cl.items & IT_UNLIMITED_WEAPON_AMMO)
745                         {
746                                 f = 1;
747                         }
748                         else
749                         {
750                                 oldself = self;
751                                 self = cl;
752                                 f = weapon_action(wpn, WR_CHECKAMMO1);
753                                 f = f + weapon_action(wpn, WR_CHECKAMMO2);
754
755                                 // always allow selecting the Mine Layer if we placed mines, so that we can detonate them
756                                 entity mine;
757                                 if(wpn == WEP_MINE_LAYER)
758                                 for(mine = world; (mine = find(mine, classname, "mine")); ) if(mine.owner == self)
759                                         f = 1;
760
761                                 self = oldself;
762                         }
763                         if (!f)
764                         {
765                                 if (complain)
766                                 if(clienttype(cl) == CLIENTTYPE_REAL)
767                                 {
768                                         play2(cl, "weapons/unavailable.wav");
769                                         sprint(cl, strcat("You don't have any ammo for the ^2", W_Name(wpn), "\n"));
770                                         Send_WeaponComplain (cl, wpn, W_Name(wpn), 0);
771                                 }
772                                 return FALSE;
773                         }
774                 }
775                 return TRUE;
776         }
777         if (complain)
778         {
779                 // DRESK - 3/16/07
780                 // Report Proper Weapon Status / Modified Weapon Ownership Message
781                 if(weaponsInMap & weaponbit)
782                 {
783                         sprint(cl, strcat("You do not have the ^2", W_Name(wpn), "\n") );
784                         Send_WeaponComplain (cl, wpn, W_Name(wpn), 1);
785
786                         if(autocvar_g_showweaponspawns)
787                         {
788                                 entity e;
789                                 string s;
790
791                                 e = get_weaponinfo(wpn);
792                                 s = e.model2;
793
794                                 for(e = world; (e = findfloat(e, weapons, weaponbit)); )
795                                 {
796                                         if(e.classname == "droppedweapon")
797                                                 continue;
798                                         if not(e.flags & FL_ITEM)
799                                                 continue;
800                                         WaypointSprite_Spawn(
801                                                 s,
802                                                 1, 0,
803                                                 world, e.origin,
804                                                 self, 0,
805                                                 world, enemy,
806                                                 0,
807                                                 RADARICON_NONE, '0 0 0'
808                                         );
809                                 }
810                         }
811                 }
812                 else
813                 {
814                         Send_WeaponComplain (cl, wpn, W_Name(wpn), 2);
815                         sprint(cl, strcat("The ^2", W_Name(wpn), "^7 is ^1NOT AVAILABLE^7 in this map\n") );
816                 }
817
818                 play2(cl, "weapons/unavailable.wav");
819         }
820         return FALSE;
821 }
822
823 // Weapon subs
824 void w_clear()
825 {
826         if (self.weapon != -1)
827         {
828                 self.weapon = 0;
829                 self.switchingweapon = 0;
830         }
831         if (self.weaponentity)
832         {
833                 self.weaponentity.state = WS_CLEAR;
834                 self.weaponentity.effects = 0;
835         }
836 }
837
838 void w_ready()
839 {
840         if (self.weaponentity)
841                 self.weaponentity.state = WS_READY;
842         weapon_thinkf(WFRAME_IDLE, 1000000, w_ready);
843 }
844
845 // Setup weapon for client (after this raise frame will be launched)
846 void weapon_setup(float windex)
847 {
848         entity e;
849         e = get_weaponinfo(windex);
850         self.items &~= IT_AMMO;
851         self.items = self.items | e.items;
852
853         // the two weapon entities will notice this has changed and update their models
854         self.weapon = windex;
855         self.switchingweapon = windex; // to make sure
856         self.weaponname = e.mdl;
857         self.bulletcounter = 0;
858 }
859
860 // perform weapon to attack (weaponstate and attack_finished check is here)
861 void W_SwitchToOtherWeapon(entity pl)
862 {
863         // hack to ensure it switches to an OTHER weapon (in case the other fire mode still has ammo, we want that anyway)
864         float w, ww;
865         w = W_WeaponBit(pl.weapon);
866         pl.weapons &~= w;
867         ww = w_getbestweapon(pl);
868         pl.weapons |= w;
869         if(ww)
870                 W_SwitchWeapon_Force(pl, ww);
871 }
872 .float prevdryfire;
873 float weapon_prepareattack_checkammo(float secondary)
874 {
875         if not(self.items & IT_UNLIMITED_WEAPON_AMMO)
876         if (!weapon_action(self.weapon, WR_CHECKAMMO1 + secondary))
877         {
878                 // always keep the Mine Layer if we placed mines, so that we can detonate them
879                 entity mine;
880                 if(self.weapon == WEP_MINE_LAYER)
881                 for(mine = world; (mine = find(mine, classname, "mine")); ) if(mine.owner == self)
882                         return FALSE;
883
884                 if(self.weapon == self.switchweapon && time - self.prevdryfire > 1) // only play once BEFORE starting to switch weapons
885                 {
886                         sound (self, CH_WEAPON_A, "weapons/dryfire.wav", VOL_BASE, ATTN_NORM);
887                         self.prevdryfire = time;
888                 }
889
890                 W_SwitchToOtherWeapon(self);
891                 return FALSE;
892         }
893         return TRUE;
894 }
895 .float race_penalty;
896 float weapon_prepareattack_check(float secondary, float attacktime)
897 {
898         if(!weapon_prepareattack_checkammo(secondary))
899                 return FALSE;
900
901         //if sv_ready_restart_after_countdown is set, don't allow the player to shoot
902         //if all players readied up and the countdown is running
903         if(time < game_starttime || time < self.race_penalty) {
904                 return FALSE;
905         }
906
907         if (timeoutStatus == 2) //don't allow the player to shoot while game is paused
908                 return FALSE;
909
910         // do not even think about shooting if switching
911         if(self.switchweapon != self.weapon)
912                 return FALSE;
913
914         if(attacktime >= 0)
915         {
916                 // don't fire if previous attack is not finished
917                 if (ATTACK_FINISHED(self) > time + self.weapon_frametime * 0.5)
918                         return FALSE;
919                 // don't fire while changing weapon
920                 if (self.weaponentity.state != WS_READY)
921                         return FALSE;
922         }
923
924         return TRUE;
925 }
926 float weapon_prepareattack_do(float secondary, float attacktime)
927 {
928         self.weaponentity.state = WS_INUSE;
929
930         self.spawnshieldtime = min(self.spawnshieldtime, time); // kill spawn shield when you fire
931
932         // if the weapon hasn't been firing continuously, reset the timer
933         if(attacktime >= 0)
934         {
935                 if (ATTACK_FINISHED(self) < time - self.weapon_frametime * 1.5)
936                 {
937                         ATTACK_FINISHED(self) = time;
938                         //dprint("resetting attack finished to ", ftos(time), "\n");
939                 }
940                 ATTACK_FINISHED(self) = ATTACK_FINISHED(self) + attacktime * W_WeaponRateFactor();
941         }
942         self.bulletcounter += 1;
943         //dprint("attack finished ", ftos(ATTACK_FINISHED(self)), "\n");
944         return TRUE;
945 }
946 float weapon_prepareattack(float secondary, float attacktime)
947 {
948         if(weapon_prepareattack_check(secondary, attacktime))
949         {
950                 weapon_prepareattack_do(secondary, attacktime);
951                 return TRUE;
952         }
953         else
954                 return FALSE;
955 }
956
957 void weapon_thinkf(float fr, float t, void() func)
958 {
959         vector a;
960         vector of, or, ou;
961         float restartanim;
962
963         if(fr == WFRAME_DONTCHANGE)
964         {
965                 fr = self.weaponentity.wframe;
966                 restartanim = FALSE;
967         }
968         else if (fr == WFRAME_IDLE)
969                 restartanim = FALSE;
970         else
971                 restartanim = TRUE;
972
973         of = v_forward;
974         or = v_right;
975         ou = v_up;
976
977         if (self.weaponentity)
978         {
979                 self.weaponentity.wframe = fr;
980                 if (fr == WFRAME_IDLE)
981                         a = self.weaponentity.anim_idle;
982                 else if (fr == WFRAME_FIRE1)
983                         a = self.weaponentity.anim_fire1;
984                 else if (fr == WFRAME_FIRE2)
985                         a = self.weaponentity.anim_fire2;
986                 else if (fr == WFRAME_RELOAD)
987                         a = self.weaponentity.anim_reload;
988                 a_z *= g_weaponratefactor;
989                 setanim(self.weaponentity, a, restartanim == FALSE, restartanim, restartanim);
990         }
991
992         v_forward = of;
993         v_right = or;
994         v_up = ou;
995
996         if(self.weapon_think == w_ready && func != w_ready && self.weaponentity.state == WS_RAISE)
997         {
998                 backtrace("Tried to override initial weapon think function - should this really happen?");
999         }
1000
1001         t *= W_WeaponRateFactor();
1002
1003         // VorteX: haste can be added here
1004         if (self.weapon_think == w_ready)
1005         {
1006                 self.weapon_nextthink = time;
1007                 //dprint("started firing at ", ftos(time), "\n");
1008         }
1009         if (self.weapon_nextthink < time - self.weapon_frametime * 1.5 || self.weapon_nextthink > time + self.weapon_frametime * 1.5)
1010         {
1011                 self.weapon_nextthink = time;
1012                 //dprint("reset weapon animation timer at ", ftos(time), "\n");
1013         }
1014         self.weapon_nextthink = self.weapon_nextthink + t;
1015         self.weapon_think = func;
1016         //dprint("next ", ftos(self.weapon_nextthink), "\n");
1017
1018         // The shoot animation looks TERRIBLE without animation blending! Yay for moonwalking while shooting!
1019         //anim = self.anim_shoot;
1020         if (restartanim)
1021         if (t)
1022         if (!self.crouch) // shoot anim stands up, this looks bad
1023         {
1024                 vector anim;
1025                 if(self.weapon == WEP_SHOTGUN && self.BUTTON_ATCK2)
1026                 {
1027                         anim = self.anim_melee;
1028                         anim_z = anim_y / (t + sys_frametime);
1029                         setanim(self, anim, FALSE, TRUE, TRUE);
1030                 }
1031                 else if (self.animstate_startframe == self.anim_idle_x) // only allow shoot anim to override idle animation until we have animation blending
1032                 {
1033                         anim = self.anim_shoot;
1034                         anim_z = anim_y / (t + sys_frametime);
1035                         setanim(self, anim, FALSE, TRUE, TRUE);
1036                 }
1037         }
1038 }
1039
1040 void weapon_boblayer1(float spd, vector org)
1041 {
1042         // VorteX: haste can be added here
1043 }
1044
1045 vector W_CalculateProjectileVelocity(vector pvelocity, vector mvelocity, float forceAbsolute)
1046 {
1047         vector mdirection;
1048         float mspeed;
1049         float outspeed;
1050         float nstyle;
1051         vector outvelocity;
1052
1053         mvelocity = mvelocity * g_weaponspeedfactor;
1054
1055         mdirection = normalize(mvelocity);
1056         mspeed = vlen(mvelocity);
1057
1058         nstyle = autocvar_g_projectiles_newton_style;
1059         if(nstyle == 0 || forceAbsolute)
1060         {
1061                 // absolute velocity
1062                 outvelocity = mvelocity;
1063         }
1064         else if(nstyle == 1)
1065         {
1066                 // true Newtonian projectiles
1067                 outvelocity = pvelocity + mvelocity;
1068         }
1069         else if(nstyle == 2)
1070         {
1071                 // true Newtonian projectiles with automatic aim adjustment
1072                 //
1073                 // solve: |outspeed * mdirection - pvelocity| = mspeed
1074                 // outspeed^2 - 2 * outspeed * (mdirection * pvelocity) + pvelocity^2 - mspeed^2 = 0
1075                 // outspeed = (mdirection * pvelocity) +- sqrt((mdirection * pvelocity)^2 - pvelocity^2 + mspeed^2)
1076                 // PLUS SIGN!
1077                 // not defined?
1078                 // then...
1079                 // pvelocity^2 - (mdirection * pvelocity)^2 > mspeed^2
1080                 // velocity without mdirection component > mspeed
1081                 // fire at smallest possible mspeed that works?
1082                 // |(mdirection * pvelocity) * pvelocity - pvelocity| = mspeed
1083
1084                 vector solution;
1085                 solution = solve_quadratic(1, -2 * (mdirection * pvelocity), pvelocity * pvelocity - mspeed * mspeed);
1086                 if(solution_z)
1087                         outspeed = solution_y; // the larger one
1088                 else
1089                 {
1090                         //outspeed = 0; // slowest possible shot
1091                         outspeed = solution_x; // the real part (that is, the average!)
1092                         //dprint("impossible shot, adjusting\n");
1093                 }
1094
1095                 outspeed = bound(mspeed * autocvar_g_projectiles_newton_style_2_minfactor, outspeed, mspeed * autocvar_g_projectiles_newton_style_2_maxfactor);
1096                 outvelocity = mdirection * outspeed;
1097         }
1098         else if(nstyle == 3)
1099         {
1100                 // pseudo-Newtonian:
1101                 outspeed = mspeed + mdirection * pvelocity;
1102                 outspeed = bound(mspeed * 0.7, outspeed, mspeed * 5.0);
1103                 outvelocity = mdirection * outspeed;
1104         }
1105         else if(nstyle == 4)
1106         {
1107                 // tZorkian:
1108                 outspeed = mspeed + vlen(pvelocity);
1109                 outvelocity = mdirection * outspeed;
1110         }
1111         else
1112                 error("g_projectiles_newton_style must be 0 (absolute), 1 (Newtonian), 2 (Newtonian + aimfix), 3 (pseudo Newtonian) or 4 (tZorkian)!");
1113
1114         return outvelocity;
1115 }
1116
1117 void W_AttachToShotorg(entity flash, vector offset)
1118 {
1119         entity xflash;
1120         flash.owner = self;
1121         flash.angles_z = random() * 360;
1122
1123         if(gettagindex(self.weaponentity, "shot"))
1124                 setattachment(flash, self.weaponentity, "shot");
1125         else
1126                 setattachment(flash, self.weaponentity, "tag_shot");
1127         setorigin(flash, offset);
1128
1129         xflash = spawn();
1130         copyentity(flash, xflash);
1131
1132         flash.viewmodelforclient = self;
1133
1134         if(self.weaponentity.oldorigin_x > 0)
1135         {
1136                 setattachment(xflash, self.exteriorweaponentity, "");
1137                 setorigin(xflash, self.weaponentity.oldorigin + offset);
1138         }
1139         else
1140         {
1141                 if(gettagindex(self.exteriorweaponentity, "shot"))
1142                         setattachment(xflash, self.exteriorweaponentity, "shot");
1143                 else
1144                         setattachment(xflash, self.exteriorweaponentity, "tag_shot");
1145                 setorigin(xflash, offset);
1146         }
1147 }
1148
1149 vector cliptoplane(vector v, vector p)
1150 {
1151         return v - (v * p) * p;
1152 }
1153
1154 vector solve_cubic_pq(float p, float q)
1155 {
1156         float D, u, v, a;
1157         D = q*q/4.0 + p*p*p/27.0;
1158         if(D < 0)
1159         {
1160                 // irreducibilis
1161                 a = 1.0/3.0 * acos(-q/2.0 * sqrt(-27.0/(p*p*p)));
1162                 u = sqrt(-4.0/3.0 * p);
1163                 // a in range 0..pi/3
1164                 // cos(a)
1165                 // cos(a + 2pi/3)
1166                 // cos(a + 4pi/3)
1167                 return
1168                         u *
1169                         (
1170                                 '1 0 0' * cos(a + 2.0/3.0*M_PI)
1171                                 +
1172                                 '0 1 0' * cos(a + 4.0/3.0*M_PI)
1173                                 +
1174                                 '0 0 1' * cos(a)
1175                         );
1176         }
1177         else if(D == 0)
1178         {
1179                 // simple
1180                 if(p == 0)
1181                         return '0 0 0';
1182                 u = 3*q/p;
1183                 v = -u/2;
1184                 if(u >= v)
1185                         return '1 1 0' * v + '0 0 1' * u;
1186                 else
1187                         return '0 1 1' * v + '1 0 0' * u;
1188         }
1189         else
1190         {
1191                 // cardano
1192                 u = cbrt(-q/2.0 + sqrt(D));
1193                 v = cbrt(-q/2.0 - sqrt(D));
1194                 return '1 1 1' * (u + v);
1195         }
1196 }
1197 vector solve_cubic_abcd(float a, float b, float c, float d)
1198 {
1199         // y = 3*a*x + b
1200         // x = (y - b) / 3a
1201         float p, q;
1202         vector v;
1203         p = (9*a*c - 3*b*b);
1204         q = (27*a*a*d - 9*a*b*c + 2*b*b*b);
1205         v = solve_cubic_pq(p, q);
1206         v = (v -  b * '1 1 1') * (1.0 / (3.0 * a));
1207         if(a < 0)
1208                 v += '1 0 -1' * (v_z - v_x); // swap x, z
1209         return v;
1210 }
1211
1212 vector findperpendicular(vector v)
1213 {
1214         vector p;
1215         p_x = v_z;
1216         p_y = -v_x;
1217         p_z = v_y;
1218         return normalize(cliptoplane(p, v));
1219 }
1220
1221 vector W_CalculateProjectileSpread(vector forward, float spread)
1222 {
1223         float sigma;
1224         vector v1, v2;
1225         float dx, dy, r;
1226         float sstyle;
1227         spread *= g_weaponspreadfactor;
1228         if(spread <= 0)
1229                 return forward;
1230         sstyle = autocvar_g_projectiles_spread_style;
1231         
1232         if(sstyle == 0)
1233         {
1234                 // this is the baseline for the spread value!
1235                 // standard deviation: sqrt(2/5)
1236                 // density function: sqrt(1-r^2)
1237                 return forward + randomvec() * spread;
1238         }
1239         else if(sstyle == 1)
1240         {
1241                 // same thing, basically
1242                 return normalize(forward + cliptoplane(randomvec() * spread, forward));
1243         }
1244         else if(sstyle == 2)
1245         {
1246                 // circle spread... has at sigma=1 a standard deviation of sqrt(1/2)
1247                 sigma = spread * 0.89442719099991587855; // match baseline stddev
1248                 v1 = findperpendicular(forward);
1249                 v2 = cross(forward, v1);
1250                 // random point on unit circle
1251                 dx = random() * 2 * M_PI;
1252                 dy = sin(dx);
1253                 dx = cos(dx);
1254                 // radius in our dist function
1255                 r = random();
1256                 r = sqrt(r);
1257                 return normalize(forward + (v1 * dx + v2 * dy) * r * sigma);
1258         }
1259         else if(sstyle == 3) // gauss 3d
1260         {
1261                 sigma = spread * 0.44721359549996; // match baseline stddev
1262                 // note: 2D gaussian has sqrt(2) times the stddev of 1D, so this factor is right
1263                 v1 = forward;
1264                 v1_x += gsl_ran_gaussian(sigma);
1265                 v1_y += gsl_ran_gaussian(sigma);
1266                 v1_z += gsl_ran_gaussian(sigma);
1267                 return v1;
1268         }
1269         else if(sstyle == 4) // gauss 2d
1270         {
1271                 sigma = spread * 0.44721359549996; // match baseline stddev
1272                 // note: 2D gaussian has sqrt(2) times the stddev of 1D, so this factor is right
1273                 v1_x = gsl_ran_gaussian(sigma);
1274                 v1_y = gsl_ran_gaussian(sigma);
1275                 v1_z = gsl_ran_gaussian(sigma);
1276                 return normalize(forward + cliptoplane(v1, forward));
1277         }
1278         else if(sstyle == 5) // 1-r
1279         {
1280                 sigma = spread * 1.154700538379252; // match baseline stddev
1281                 v1 = findperpendicular(forward);
1282                 v2 = cross(forward, v1);
1283                 // random point on unit circle
1284                 dx = random() * 2 * M_PI;
1285                 dy = sin(dx);
1286                 dx = cos(dx);
1287                 // radius in our dist function
1288                 r = random();
1289                 r = solve_cubic_abcd(-2, 3, 0, -r) * '0 1 0';
1290                 return normalize(forward + (v1 * dx + v2 * dy) * r * sigma);
1291         }
1292         else if(sstyle == 6) // 1-r^2
1293         {
1294                 sigma = spread * 1.095445115010332; // match baseline stddev
1295                 v1 = findperpendicular(forward);
1296                 v2 = cross(forward, v1);
1297                 // random point on unit circle
1298                 dx = random() * 2 * M_PI;
1299                 dy = sin(dx);
1300                 dx = cos(dx);
1301                 // radius in our dist function
1302                 r = random();
1303                 r = sqrt(1 - r);
1304                 r = sqrt(1 - r);
1305                 return normalize(forward + (v1 * dx + v2 * dy) * r * sigma);
1306         }
1307         else if(sstyle == 7) // (1-r) (2-r)
1308         {
1309                 sigma = spread * 1.224744871391589; // match baseline stddev
1310                 v1 = findperpendicular(forward);
1311                 v2 = cross(forward, v1);
1312                 // random point on unit circle
1313                 dx = random() * 2 * M_PI;
1314                 dy = sin(dx);
1315                 dx = cos(dx);
1316                 // radius in our dist function
1317                 r = random();
1318                 r = 1 - sqrt(r);
1319                 r = 1 - sqrt(r);
1320                 return normalize(forward + (v1 * dx + v2 * dy) * r * sigma);
1321         }
1322         else
1323                 error("g_projectiles_spread_style must be 0 (sphere), 1 (flattened sphere), 2 (circle), 3 (gauss 3D), 4 (gauss plane), 5 (linear falloff), 6 (quadratic falloff), 7 (stronger falloff)!");
1324         return '0 0 0';
1325         /*
1326          * how to derive falloff functions:
1327          * rho(r) := (2-r) * (1-r);
1328          * a : 0;
1329          * b : 1;
1330          * rhor(r) := r * rho(r);
1331          * cr(t) := integrate(rhor(r), r, a, t);
1332          * scr(t) := integrate(rhor(r) * r^2, r, a, t);
1333          * variance : scr(b) / cr(b);
1334          * solve(cr(r) = rand * cr(b), r), programmmode:false;
1335          * sqrt(0.4 / variance), numer;
1336          */
1337 }
1338
1339 #if 0
1340 float mspercallsum;
1341 float mspercallsstyle;
1342 float mspercallcount;
1343 #endif
1344 void W_SetupProjectileVelocityEx(entity missile, vector dir, vector upDir, float pSpeed, float pUpSpeed, float pZSpeed, float spread, float forceAbsolute)
1345 {
1346         if(missile.owner == world)
1347                 error("Unowned missile");
1348
1349         dir = dir + upDir * (pUpSpeed / pSpeed);
1350         dir_z += pZSpeed / pSpeed;
1351         pSpeed *= vlen(dir);
1352         dir = normalize(dir);
1353
1354 #if 0
1355         if(autocvar_g_projectiles_spread_style != mspercallsstyle)
1356         {
1357                 mspercallsum = mspercallcount = 0;
1358                 mspercallsstyle = autocvar_g_projectiles_spread_style;
1359         }
1360         mspercallsum -= gettime(GETTIME_HIRES);
1361 #endif
1362         dir = W_CalculateProjectileSpread(dir, spread);
1363 #if 0
1364         mspercallsum += gettime(GETTIME_HIRES);
1365         mspercallcount += 1;
1366         print("avg: ", ftos(mspercallcount / mspercallsum), " per sec\n");
1367 #endif
1368
1369         missile.velocity = W_CalculateProjectileVelocity(missile.owner.velocity, pSpeed * dir, forceAbsolute);
1370 }
1371
1372 void W_SetupProjectileVelocity(entity missile, float pSpeed, float spread)
1373 {
1374         W_SetupProjectileVelocityEx(missile, w_shotdir, v_up, pSpeed, 0, 0, spread, FALSE);
1375 }
1376
1377 #define W_SETUPPROJECTILEVELOCITY_UP(m,s) W_SetupProjectileVelocityEx(m, w_shotdir, v_up, cvar(#s "_speed"), cvar(#s "_speed_up"), cvar(#s "_speed_z"), cvar(#s "_spread"), FALSE)
1378 #define W_SETUPPROJECTILEVELOCITY(m,s) W_SetupProjectileVelocityEx(m, w_shotdir, v_up, cvar(#s "_speed"), 0, 0, cvar(#s "_spread"), FALSE)
1379
1380 void W_DecreaseAmmo(.float ammo_type, float ammo_use, float ammo_reload)
1381 {
1382         if((self.items & IT_UNLIMITED_WEAPON_AMMO) && !ammo_reload)
1383                 return;
1384
1385         // if this weapon is reloadable, decrease its load. Else decrease the player's ammo
1386         if(ammo_reload)
1387         {
1388                 self.clip_load -= ammo_use;
1389                 self.(weapon_load[self.weapon]) = self.clip_load;
1390         }
1391         else
1392                 self.(self.current_ammo) -= ammo_use;
1393 }
1394
1395 // weapon reloading code
1396
1397 .float reload_ammo_amount, reload_ammo_min, reload_time;
1398 .float reload_complain;
1399 .string reload_sound;
1400
1401 void W_ReloadedAndReady()
1402 {
1403         // finish the reloading process, and do the ammo transfer
1404
1405         self.clip_load = self.old_clip_load; // restore the ammo counter, in case we still had ammo in the weapon before reloading
1406
1407         // if the gun uses no ammo, max out weapon load, else decrease ammo as we increase weapon load
1408         if(!self.reload_ammo_min || self.items & IT_UNLIMITED_WEAPON_AMMO)
1409                 self.clip_load = self.reload_ammo_amount;
1410         else
1411         {
1412                 while(self.clip_load < self.reload_ammo_amount && self.(self.current_ammo)) // make sure we don't add more ammo than we have
1413                 {
1414                         self.clip_load += 1;
1415                         self.(self.current_ammo) -= 1;
1416                 }
1417         }
1418         self.(weapon_load[self.weapon]) = self.clip_load;
1419
1420         // do not set ATTACK_FINISHED in reload code any more. This causes annoying delays if eg: You start reloading a weapon,
1421         // then quickly switch to another weapon and back. Reloading is canceled, but the reload delay is still there,
1422         // so your weapon is disabled for a few seconds without reason
1423
1424         //ATTACK_FINISHED(self) -= self.reload_time - 1;
1425
1426         w_ready();
1427 }
1428
1429 void W_Reload(float sent_ammo_min, float sent_ammo_amount, float sent_time, string sent_sound)
1430 {
1431         // set global values to work with
1432
1433         self.reload_ammo_min = sent_ammo_min;
1434         self.reload_ammo_amount = sent_ammo_amount;
1435         self.reload_time = sent_time;
1436         self.reload_sound = sent_sound;
1437
1438         // check if we meet the necessary conditions to reload
1439
1440         entity e;
1441         e = get_weaponinfo(self.weapon);
1442
1443         // don't reload weapons that don't have the RELOADABLE flag
1444         if not(e.spawnflags & WEP_FLAG_RELOADABLE)
1445         {
1446                 dprint("Warning: Attempted to reload a weapon that does not have the WEP_FLAG_RELOADABLE flag. Fix your code!\n");
1447                 return;
1448         }
1449
1450         // return if reloading is disabled for this weapon
1451         if(!self.reload_ammo_amount)
1452                 return;
1453
1454         // our weapon is fully loaded, no need to reload
1455         if (self.clip_load >= self.reload_ammo_amount)
1456                 return;
1457
1458         // no ammo, so nothing to load
1459         if(!self.(self.current_ammo) && self.reload_ammo_min)
1460         if not(self.items & IT_UNLIMITED_WEAPON_AMMO)
1461         {
1462                 if(clienttype(self) == CLIENTTYPE_REAL && self.reload_complain < time)
1463                 {
1464                         play2(self, "weapons/unavailable.wav");
1465                         sprint(self, strcat("You don't have enough ammo to reload the ^2", W_Name(self.weapon), "\n"));
1466                         self.reload_complain = time + 1;
1467                 }
1468                 // switch away if the amount of ammo is not enough to keep using this weapon
1469                 if not(weapon_action(self.weapon, WR_CHECKAMMO1) + weapon_action(self.weapon, WR_CHECKAMMO2))
1470                 {
1471                         self.clip_load = -1; // reload later
1472                         W_SwitchToOtherWeapon(self);
1473                 }
1474                 return;
1475         }
1476
1477         if (self.weaponentity)
1478         {
1479                 if (self.weaponentity.wframe == WFRAME_RELOAD)
1480                         return;
1481
1482                 // allow switching away while reloading, but this will cause a new reload!
1483                 self.weaponentity.state = WS_READY;
1484         }
1485
1486         // now begin the reloading process
1487
1488         sound (self, CH_WEAPON_B, self.reload_sound, VOL_BASE, ATTN_NORM);
1489
1490         // do not set ATTACK_FINISHED in reload code any more. This causes annoying delays if eg: You start reloading a weapon,
1491         // then quickly switch to another weapon and back. Reloading is canceled, but the reload delay is still there,
1492         // so your weapon is disabled for a few seconds without reason
1493
1494         //ATTACK_FINISHED(self) = max(time, ATTACK_FINISHED(self)) + self.reload_time + 1;
1495
1496         weapon_thinkf(WFRAME_RELOAD, self.reload_time, W_ReloadedAndReady);
1497
1498         if(self.clip_load < 0)
1499                 self.clip_load = 0;
1500         self.old_clip_load = self.clip_load;
1501         self.clip_load = self.(weapon_load[self.weapon]) = -1;
1502 }