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diff --git a/apps/plugins/sdl/progs/quake/sv_user.c b/apps/plugins/sdl/progs/quake/sv_user.c
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1/*
2Copyright (C) 1996-1997 Id Software, Inc.
3
4This program is free software; you can redistribute it and/or
5modify it under the terms of the GNU General Public License
6as published by the Free Software Foundation; either version 2
7of the License, or (at your option) any later version.
8
9This program is distributed in the hope that it will be useful,
10but WITHOUT ANY WARRANTY; without even the implied warranty of
11MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13See the GNU General Public License for more details.
14
15You should have received a copy of the GNU General Public License
16along with this program; if not, write to the Free Software
17Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18
19*/
20// sv_user.c -- server code for moving users
21
22#include "quakedef.h"
23
24edict_t *sv_player;
25
26extern cvar_t sv_friction;
27cvar_t sv_edgefriction = {"edgefriction", "2"};
28extern cvar_t sv_stopspeed;
29
30static vec3_t forward, right, up;
31
32vec3_t wishdir;
33float wishspeed;
34
35// world
36float *angles;
37float *origin;
38float *velocity;
39
40qboolean onground;
41
42usercmd_t cmd;
43
44cvar_t sv_idealpitchscale = {"sv_idealpitchscale","0.8"};
45
46
47/*
48===============
49SV_SetIdealPitch
50===============
51*/
52#define MAX_FORWARD 6
53void SV_SetIdealPitch (void)
54{
55 float angleval, sinval, cosval;
56 trace_t tr;
57 vec3_t top, bottom;
58 float z[MAX_FORWARD];
59 int i, j;
60 int step, dir, steps;
61
62 if (!((int)sv_player->v.flags & FL_ONGROUND))
63 return;
64
65 angleval = sv_player->v.angles[YAW] * M_PI*2 / 360;
66 sinval = sin(angleval);
67 cosval = cos(angleval);
68
69 for (i=0 ; i<MAX_FORWARD ; i++)
70 {
71 top[0] = sv_player->v.origin[0] + cosval*(i+3)*12;
72 top[1] = sv_player->v.origin[1] + sinval*(i+3)*12;
73 top[2] = sv_player->v.origin[2] + sv_player->v.view_ofs[2];
74
75 bottom[0] = top[0];
76 bottom[1] = top[1];
77 bottom[2] = top[2] - 160;
78
79 tr = SV_Move (top, vec3_origin, vec3_origin, bottom, 1, sv_player);
80 if (tr.allsolid)
81 return; // looking at a wall, leave ideal the way is was
82
83 if (tr.fraction == 1)
84 return; // near a dropoff
85
86 z[i] = top[2] + tr.fraction*(bottom[2]-top[2]);
87 }
88
89 dir = 0;
90 steps = 0;
91 for (j=1 ; j<i ; j++)
92 {
93 step = z[j] - z[j-1];
94 if (step > -ON_EPSILON && step < ON_EPSILON)
95 continue;
96
97 if (dir && ( step-dir > ON_EPSILON || step-dir < -ON_EPSILON ) )
98 return; // mixed changes
99
100 steps++;
101 dir = step;
102 }
103
104 if (!dir)
105 {
106 sv_player->v.idealpitch = 0;
107 return;
108 }
109
110 if (steps < 2)
111 return;
112 sv_player->v.idealpitch = -dir * sv_idealpitchscale.value;
113}
114
115
116/*
117==================
118SV_UserFriction
119
120==================
121*/
122void SV_UserFriction (void)
123{
124 float *vel;
125 float speed, newspeed, control;
126 vec3_t start, stop;
127 float friction;
128 trace_t trace;
129
130 vel = velocity;
131
132 speed = sqrt(vel[0]*vel[0] +vel[1]*vel[1]);
133 if (!speed)
134 return;
135
136// if the leading edge is over a dropoff, increase friction
137 start[0] = stop[0] = origin[0] + vel[0]/speed*16;
138 start[1] = stop[1] = origin[1] + vel[1]/speed*16;
139 start[2] = origin[2] + sv_player->v.mins[2];
140 stop[2] = start[2] - 34;
141
142 trace = SV_Move (start, vec3_origin, vec3_origin, stop, true, sv_player);
143
144 if (trace.fraction == 1.0)
145 friction = sv_friction.value*sv_edgefriction.value;
146 else
147 friction = sv_friction.value;
148
149// apply friction
150 control = speed < sv_stopspeed.value ? sv_stopspeed.value : speed;
151 newspeed = speed - host_frametime*control*friction;
152
153 if (newspeed < 0)
154 newspeed = 0;
155 newspeed /= speed;
156
157 vel[0] = vel[0] * newspeed;
158 vel[1] = vel[1] * newspeed;
159 vel[2] = vel[2] * newspeed;
160}
161
162/*
163==============
164SV_Accelerate
165==============
166*/
167cvar_t sv_maxspeed = {"sv_maxspeed", "320", false, true};
168cvar_t sv_accelerate = {"sv_accelerate", "10"};
169#if 0
170void SV_Accelerate (vec3_t wishvel)
171{
172 int i;
173 float addspeed, accelspeed;
174 vec3_t pushvec;
175
176 if (wishspeed == 0)
177 return;
178
179 VectorSubtract (wishvel, velocity, pushvec);
180 addspeed = VectorNormalize (pushvec);
181
182 accelspeed = sv_accelerate.value*host_frametime*addspeed;
183 if (accelspeed > addspeed)
184 accelspeed = addspeed;
185
186 for (i=0 ; i<3 ; i++)
187 velocity[i] += accelspeed*pushvec[i];
188}
189#endif
190void SV_Accelerate (void)
191{
192 int i;
193 float addspeed, accelspeed, currentspeed;
194
195 currentspeed = DotProduct (velocity, wishdir);
196 addspeed = wishspeed - currentspeed;
197 if (addspeed <= 0)
198 return;
199 accelspeed = sv_accelerate.value*host_frametime*wishspeed;
200 if (accelspeed > addspeed)
201 accelspeed = addspeed;
202
203 for (i=0 ; i<3 ; i++)
204 velocity[i] += accelspeed*wishdir[i];
205}
206
207void SV_AirAccelerate (vec3_t wishveloc)
208{
209 int i;
210 float addspeed, wishspd, accelspeed, currentspeed;
211
212 wishspd = VectorNormalize (wishveloc);
213 if (wishspd > 30)
214 wishspd = 30;
215 currentspeed = DotProduct (velocity, wishveloc);
216 addspeed = wishspd - currentspeed;
217 if (addspeed <= 0)
218 return;
219// accelspeed = sv_accelerate.value * host_frametime;
220 accelspeed = sv_accelerate.value*wishspeed * host_frametime;
221 if (accelspeed > addspeed)
222 accelspeed = addspeed;
223
224 for (i=0 ; i<3 ; i++)
225 velocity[i] += accelspeed*wishveloc[i];
226}
227
228
229void DropPunchAngle (void)
230{
231 float len;
232
233 len = VectorNormalize (sv_player->v.punchangle);
234
235 len -= 10*host_frametime;
236 if (len < 0)
237 len = 0;
238 VectorScale (sv_player->v.punchangle, len, sv_player->v.punchangle);
239}
240
241/*
242===================
243SV_WaterMove
244
245===================
246*/
247void SV_WaterMove (void)
248{
249 int i;
250 vec3_t wishvel;
251 float speed, newspeed, wishspeed, addspeed, accelspeed;
252
253//
254// user intentions
255//
256 AngleVectors (sv_player->v.v_angle, forward, right, up);
257
258 for (i=0 ; i<3 ; i++)
259 wishvel[i] = forward[i]*cmd.forwardmove + right[i]*cmd.sidemove;
260
261 if (!cmd.forwardmove && !cmd.sidemove && !cmd.upmove)
262 wishvel[2] -= 60; // drift towards bottom
263 else
264 wishvel[2] += cmd.upmove;
265
266 wishspeed = Length(wishvel);
267 if (wishspeed > sv_maxspeed.value)
268 {
269 VectorScale (wishvel, sv_maxspeed.value/wishspeed, wishvel);
270 wishspeed = sv_maxspeed.value;
271 }
272 wishspeed *= 0.7;
273
274//
275// water friction
276//
277 speed = Length (velocity);
278 if (speed)
279 {
280 newspeed = speed - host_frametime * speed * sv_friction.value;
281 if (newspeed < 0)
282 newspeed = 0;
283 VectorScale (velocity, newspeed/speed, velocity);
284 }
285 else
286 newspeed = 0;
287
288//
289// water acceleration
290//
291 if (!wishspeed)
292 return;
293
294 addspeed = wishspeed - newspeed;
295 if (addspeed <= 0)
296 return;
297
298 VectorNormalizeNoRet (wishvel);
299 accelspeed = sv_accelerate.value * wishspeed * host_frametime;
300 if (accelspeed > addspeed)
301 accelspeed = addspeed;
302
303 for (i=0 ; i<3 ; i++)
304 velocity[i] += accelspeed * wishvel[i];
305}
306
307void SV_WaterJump (void)
308{
309 if (sv.time > sv_player->v.teleport_time
310 || !sv_player->v.waterlevel)
311 {
312 sv_player->v.flags = (int)sv_player->v.flags & ~FL_WATERJUMP;
313 sv_player->v.teleport_time = 0;
314 }
315 sv_player->v.velocity[0] = sv_player->v.movedir[0];
316 sv_player->v.velocity[1] = sv_player->v.movedir[1];
317}
318
319
320/*
321===================
322SV_AirMove
323
324===================
325*/
326void SV_AirMove (void)
327{
328 int i;
329 vec3_t wishvel;
330 float fmove, smove;
331
332 AngleVectors (sv_player->v.angles, forward, right, up);
333
334 fmove = cmd.forwardmove;
335 smove = cmd.sidemove;
336
337// hack to not let you back into teleporter
338 if (sv.time < sv_player->v.teleport_time && fmove < 0)
339 fmove = 0;
340
341 for (i=0 ; i<3 ; i++)
342 wishvel[i] = forward[i]*fmove + right[i]*smove;
343
344 if ( (int)sv_player->v.movetype != MOVETYPE_WALK)
345 wishvel[2] = cmd.upmove;
346 else
347 wishvel[2] = 0;
348
349 VectorCopy (wishvel, wishdir);
350 wishspeed = VectorNormalize(wishdir);
351 if (wishspeed > sv_maxspeed.value)
352 {
353 VectorScale (wishvel, sv_maxspeed.value/wishspeed, wishvel);
354 wishspeed = sv_maxspeed.value;
355 }
356
357 if ( sv_player->v.movetype == MOVETYPE_NOCLIP)
358 { // noclip
359 VectorCopy (wishvel, velocity);
360 }
361 else if ( onground )
362 {
363 SV_UserFriction ();
364 SV_Accelerate ();
365 }
366 else
367 { // not on ground, so little effect on velocity
368 SV_AirAccelerate (wishvel);
369 }
370}
371
372/*
373===================
374SV_ClientThink
375
376the move fields specify an intended velocity in pix/sec
377the angle fields specify an exact angular motion in degrees
378===================
379*/
380void SV_ClientThink (void)
381{
382 vec3_t v_angle;
383
384 if (sv_player->v.movetype == MOVETYPE_NONE)
385 return;
386
387 onground = (int)sv_player->v.flags & FL_ONGROUND;
388
389 origin = sv_player->v.origin;
390 velocity = sv_player->v.velocity;
391
392 DropPunchAngle ();
393
394//
395// if dead, behave differently
396//
397 if (sv_player->v.health <= 0)
398 return;
399
400//
401// angles
402// show 1/3 the pitch angle and all the roll angle
403 cmd = host_client->cmd;
404 angles = sv_player->v.angles;
405
406 VectorAdd (sv_player->v.v_angle, sv_player->v.punchangle, v_angle);
407 angles[ROLL] = V_CalcRoll (sv_player->v.angles, sv_player->v.velocity)*4;
408 if (!sv_player->v.fixangle)
409 {
410 angles[PITCH] = -v_angle[PITCH]/3;
411 angles[YAW] = v_angle[YAW];
412 }
413
414 if ( (int)sv_player->v.flags & FL_WATERJUMP )
415 {
416 SV_WaterJump ();
417 return;
418 }
419//
420// walk
421//
422 if ( (sv_player->v.waterlevel >= 2)
423 && (sv_player->v.movetype != MOVETYPE_NOCLIP) )
424 {
425 SV_WaterMove ();
426 return;
427 }
428
429 SV_AirMove ();
430}
431
432
433/*
434===================
435SV_ReadClientMove
436===================
437*/
438void SV_ReadClientMove (usercmd_t *move)
439{
440 int i;
441 vec3_t angle;
442 int bits;
443
444// read ping time
445 host_client->ping_times[host_client->num_pings%NUM_PING_TIMES]
446 = sv.time - MSG_ReadFloat ();
447 host_client->num_pings++;
448
449// read current angles
450 for (i=0 ; i<3 ; i++)
451 angle[i] = MSG_ReadAngle ();
452
453 VectorCopy (angle, host_client->edict->v.v_angle);
454
455// read movement
456 move->forwardmove = MSG_ReadShort ();
457 move->sidemove = MSG_ReadShort ();
458 move->upmove = MSG_ReadShort ();
459
460// read buttons
461 bits = MSG_ReadByte ();
462 host_client->edict->v.button0 = bits & 1;
463 host_client->edict->v.button2 = (bits & 2)>>1;
464
465 i = MSG_ReadByte ();
466 if (i)
467 host_client->edict->v.impulse = i;
468
469#ifdef QUAKE2
470// read light level
471 host_client->edict->v.light_level = MSG_ReadByte ();
472#endif
473}
474
475/*
476===================
477SV_ReadClientMessage
478
479Returns false if the client should be killed
480===================
481*/
482qboolean SV_ReadClientMessage (void)
483{
484 int ret;
485 int cmd;
486 char *s;
487
488 do
489 {
490nextmsg:
491 ret = NET_GetMessage (host_client->netconnection);
492 if (ret == -1)
493 {
494 Sys_Printf ("SV_ReadClientMessage: NET_GetMessage failed\n");
495 return false;
496 }
497 if (!ret)
498 return true;
499
500 MSG_BeginReading ();
501
502 while (1)
503 {
504 if (!host_client->active)
505 return false; // a command caused an error
506
507 if (msg_badread)
508 {
509 Sys_Printf ("SV_ReadClientMessage: badread\n");
510 return false;
511 }
512
513 cmd = MSG_ReadChar ();
514
515 switch (cmd)
516 {
517 case -1:
518 goto nextmsg; // end of message
519
520 default:
521 Sys_Printf ("SV_ReadClientMessage: unknown command char\n");
522 return false;
523
524 case clc_nop:
525// Sys_Printf ("clc_nop\n");
526 break;
527
528 case clc_stringcmd:
529 s = MSG_ReadString ();
530 if (host_client->privileged)
531 ret = 2;
532 else
533 ret = 0;
534 if (Q_strncasecmp(s, "status", 6) == 0)
535 ret = 1;
536 else if (Q_strncasecmp(s, "god", 3) == 0)
537 ret = 1;
538 else if (Q_strncasecmp(s, "notarget", 8) == 0)
539 ret = 1;
540 else if (Q_strncasecmp(s, "fly", 3) == 0)
541 ret = 1;
542 else if (Q_strncasecmp(s, "name", 4) == 0)
543 ret = 1;
544 else if (Q_strncasecmp(s, "noclip", 6) == 0)
545 ret = 1;
546 else if (Q_strncasecmp(s, "say", 3) == 0)
547 ret = 1;
548 else if (Q_strncasecmp(s, "say_team", 8) == 0)
549 ret = 1;
550 else if (Q_strncasecmp(s, "tell", 4) == 0)
551 ret = 1;
552 else if (Q_strncasecmp(s, "color", 5) == 0)
553 ret = 1;
554 else if (Q_strncasecmp(s, "kill", 4) == 0)
555 ret = 1;
556 else if (Q_strncasecmp(s, "pause", 5) == 0)
557 ret = 1;
558 else if (Q_strncasecmp(s, "spawn", 5) == 0)
559 ret = 1;
560 else if (Q_strncasecmp(s, "begin", 5) == 0)
561 ret = 1;
562 else if (Q_strncasecmp(s, "prespawn", 8) == 0)
563 ret = 1;
564 else if (Q_strncasecmp(s, "kick", 4) == 0)
565 ret = 1;
566 else if (Q_strncasecmp(s, "ping", 4) == 0)
567 ret = 1;
568 else if (Q_strncasecmp(s, "give", 4) == 0)
569 ret = 1;
570 else if (Q_strncasecmp(s, "ban", 3) == 0)
571 ret = 1;
572 if (ret == 2)
573 Cbuf_InsertText (s);
574 else if (ret == 1)
575 Cmd_ExecuteString (s, src_client);
576 else
577 Con_DPrintf("%s tried to %s\n", host_client->name, s);
578 break;
579
580 case clc_disconnect:
581// Sys_Printf ("SV_ReadClientMessage: client disconnected\n");
582 return false;
583
584 case clc_move:
585 SV_ReadClientMove (&host_client->cmd);
586 break;
587 }
588 }
589 } while (ret == 1);
590
591 return true;
592}
593
594
595/*
596==================
597SV_RunClients
598==================
599*/
600void SV_RunClients (void)
601{
602 int i;
603
604 for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
605 {
606 if (!host_client->active)
607 continue;
608
609 sv_player = host_client->edict;
610
611 if (!SV_ReadClientMessage ())
612 {
613 SV_DropClient (false); // client misbehaved...
614 continue;
615 }
616
617 if (!host_client->spawned)
618 {
619 // clear client movement until a new packet is received
620 memset (&host_client->cmd, 0, sizeof(host_client->cmd));
621 continue;
622 }
623
624// always pause in single player if in console or menus
625 if (!sv.paused && (svs.maxclients > 1 || key_dest == key_game) )
626 SV_ClientThink ();
627 }
628}
629
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