2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 // sv_user.c -- server code for moving users
26 cvar_t sv_edgefriction = {0, "edgefriction", "2"};
27 cvar_t sv_predict = {0, "sv_predict", "1"};
28 cvar_t sv_deltacompress = {0, "sv_deltacompress", "1"};
29 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8"};
30 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320"};
31 cvar_t sv_accelerate = {0, "sv_accelerate", "10"};
33 static vec3_t forward, right, up;
54 void SV_SetIdealPitch (void)
56 float angleval, sinval, cosval;
63 if (!((int)sv_player->v.flags & FL_ONGROUND))
66 angleval = sv_player->v.angles[YAW] * M_PI*2 / 360;
67 sinval = sin(angleval);
68 cosval = cos(angleval);
70 for (i=0 ; i<MAX_FORWARD ; i++)
72 top[0] = sv_player->v.origin[0] + cosval*(i+3)*12;
73 top[1] = sv_player->v.origin[1] + sinval*(i+3)*12;
74 top[2] = sv_player->v.origin[2] + sv_player->v.view_ofs[2];
78 bottom[2] = top[2] - 160;
80 tr = SV_Move (top, vec3_origin, vec3_origin, bottom, MOVE_NOMONSTERS, sv_player);
81 // if looking at a wall, leave ideal the way is was
89 z[i] = top[2] + tr.fraction*(bottom[2]-top[2]);
97 if (step > -ON_EPSILON && step < ON_EPSILON)
101 if (dir && ( step-dir > ON_EPSILON || step-dir < -ON_EPSILON ) )
110 sv_player->v.idealpitch = 0;
116 sv_player->v.idealpitch = -dir * sv_idealpitchscale.value;
126 void SV_UserFriction (void)
128 float *vel, speed, newspeed, control, friction;
134 speed = sqrt(vel[0]*vel[0] +vel[1]*vel[1]);
138 // if the leading edge is over a dropoff, increase friction
139 start[0] = stop[0] = origin[0] + vel[0]/speed*16;
140 start[1] = stop[1] = origin[1] + vel[1]/speed*16;
141 start[2] = origin[2] + sv_player->v.mins[2];
142 stop[2] = start[2] - 34;
144 trace = SV_Move (start, vec3_origin, vec3_origin, stop, MOVE_NOMONSTERS, sv_player);
146 if (trace.fraction == 1.0)
147 friction = sv_friction.value*sv_edgefriction.value;
149 friction = sv_friction.value;
152 control = speed < sv_stopspeed.value ? sv_stopspeed.value : speed;
153 newspeed = speed - sv.frametime*control*friction;
160 vel[0] = vel[0] * newspeed;
161 vel[1] = vel[1] * newspeed;
162 vel[2] = vel[2] * newspeed;
170 void SV_Accelerate (void)
173 float addspeed, accelspeed, currentspeed;
175 currentspeed = DotProduct (velocity, wishdir);
176 addspeed = wishspeed - currentspeed;
179 accelspeed = sv_accelerate.value*sv.frametime*wishspeed;
180 if (accelspeed > addspeed)
181 accelspeed = addspeed;
183 for (i=0 ; i<3 ; i++)
184 velocity[i] += accelspeed*wishdir[i];
187 void SV_AirAccelerate (vec3_t wishveloc)
190 float addspeed, wishspd, accelspeed, currentspeed;
192 wishspd = VectorNormalizeLength (wishveloc);
195 currentspeed = DotProduct (velocity, wishveloc);
196 addspeed = wishspd - currentspeed;
199 accelspeed = sv_accelerate.value*wishspeed * sv.frametime;
200 if (accelspeed > addspeed)
201 accelspeed = addspeed;
203 for (i=0 ; i<3 ; i++)
204 velocity[i] += accelspeed*wishveloc[i];
208 void DropPunchAngle (void)
213 len = VectorNormalizeLength (sv_player->v.punchangle);
215 len -= 10*sv.frametime;
218 VectorScale (sv_player->v.punchangle, len, sv_player->v.punchangle);
220 if ((val = GETEDICTFIELDVALUE(sv_player, eval_punchvector)))
222 len = VectorNormalizeLength (val->vector);
224 len -= 20*sv.frametime;
227 VectorScale (val->vector, len, val->vector);
236 void SV_FreeMove (void)
241 AngleVectors (sv_player->v.v_angle, forward, right, up);
243 for (i = 0; i < 3; i++)
244 velocity[i] = forward[i] * cmd.forwardmove + right[i] * cmd.sidemove;
246 velocity[2] += cmd.upmove;
248 wishspeed = VectorLength (velocity);
249 if (wishspeed > sv_maxspeed.value)
251 VectorScale (velocity, sv_maxspeed.value / wishspeed, velocity);
252 wishspeed = sv_maxspeed.value;
262 void SV_WaterMove (void)
266 float speed, newspeed, wishspeed, addspeed, accelspeed, temp;
269 AngleVectors (sv_player->v.v_angle, forward, right, up);
271 for (i=0 ; i<3 ; i++)
272 wishvel[i] = forward[i]*cmd.forwardmove + right[i]*cmd.sidemove;
274 if (!cmd.forwardmove && !cmd.sidemove && !cmd.upmove)
275 wishvel[2] -= 60; // drift towards bottom
277 wishvel[2] += cmd.upmove;
279 wishspeed = VectorLength(wishvel);
280 if (wishspeed > sv_maxspeed.value)
282 temp = sv_maxspeed.value/wishspeed;
283 VectorScale (wishvel, temp, wishvel);
284 wishspeed = sv_maxspeed.value;
289 speed = VectorLength (velocity);
292 newspeed = speed - sv.frametime * speed * sv_friction.value;
295 temp = newspeed/speed;
296 VectorScale (velocity, temp, velocity);
301 // water acceleration
305 addspeed = wishspeed - newspeed;
309 VectorNormalize (wishvel);
310 accelspeed = sv_accelerate.value * wishspeed * sv.frametime;
311 if (accelspeed > addspeed)
312 accelspeed = addspeed;
314 for (i=0 ; i<3 ; i++)
315 velocity[i] += accelspeed * wishvel[i];
318 void SV_WaterJump (void)
320 if (sv.time > sv_player->v.teleport_time || !sv_player->v.waterlevel)
322 sv_player->v.flags = (int)sv_player->v.flags & ~FL_WATERJUMP;
323 sv_player->v.teleport_time = 0;
325 sv_player->v.velocity[0] = sv_player->v.movedir[0];
326 sv_player->v.velocity[1] = sv_player->v.movedir[1];
336 void SV_AirMove (void)
340 float fmove, smove, temp;
342 // LordHavoc: correct quake movement speed bug when looking up/down
343 wishvel[0] = wishvel[2] = 0;
344 wishvel[1] = sv_player->v.angles[1];
345 AngleVectors (wishvel, forward, right, up);
347 fmove = cmd.forwardmove;
348 smove = cmd.sidemove;
350 // hack to not let you back into teleporter
351 if (sv.time < sv_player->v.teleport_time && fmove < 0)
354 for (i=0 ; i<3 ; i++)
355 wishvel[i] = forward[i]*fmove + right[i]*smove;
357 if ((int)sv_player->v.movetype != MOVETYPE_WALK)
358 wishvel[2] += cmd.upmove;
360 VectorCopy (wishvel, wishdir);
361 wishspeed = VectorNormalizeLength(wishdir);
362 if (wishspeed > sv_maxspeed.value)
364 temp = sv_maxspeed.value/wishspeed;
365 VectorScale (wishvel, temp, wishvel);
366 wishspeed = sv_maxspeed.value;
369 if (sv_player->v.movetype == MOVETYPE_NOCLIP)
372 VectorCopy (wishvel, velocity);
381 // not on ground, so little effect on velocity
382 SV_AirAccelerate (wishvel);
390 the move fields specify an intended velocity in pix/sec
391 the angle fields specify an exact angular motion in degrees
394 void SV_ClientThink (void)
398 if (sv_player->v.movetype == MOVETYPE_NONE)
401 onground = (int)sv_player->v.flags & FL_ONGROUND;
403 origin = sv_player->v.origin;
404 velocity = sv_player->v.velocity;
408 // if dead, behave differently
409 if (sv_player->v.health <= 0)
413 // show 1/3 the pitch angle and all the roll angle
414 cmd = host_client->cmd;
415 angles = sv_player->v.angles;
417 VectorAdd (sv_player->v.v_angle, sv_player->v.punchangle, v_angle);
418 angles[ROLL] = V_CalcRoll (sv_player->v.angles, sv_player->v.velocity)*4;
419 if (!sv_player->v.fixangle)
421 // LordHavoc: pitch was ugly to begin with... removed except in water
422 if (sv_player->v.waterlevel >= 2)
423 angles[PITCH] = -v_angle[PITCH]/3;
426 angles[YAW] = v_angle[YAW];
429 if ( (int)sv_player->v.flags & FL_WATERJUMP )
435 // Player is (somehow) outside of the map, or flying, or noclipping
436 if (SV_TestEntityPosition (sv_player)
437 || sv_player->v.movetype == MOVETYPE_FLY
438 || sv_player->v.movetype == MOVETYPE_NOCLIP)
445 if ((sv_player->v.waterlevel >= 2) && (sv_player->v.movetype != MOVETYPE_NOCLIP))
460 void SV_ReadClientMove (usercmd_t *move)
469 host_client->ping_times[host_client->num_pings % NUM_PING_TIMES] = sv.time - MSG_ReadFloat ();
470 host_client->num_pings++;
471 for (i=0, total = 0;i < NUM_PING_TIMES;i++)
472 total += host_client->ping_times[i];
473 // can be used for prediction
474 host_client->ping = total / NUM_PING_TIMES;
475 host_client->latency = 0;
476 // if paused or a local game, don't predict
477 if (sv_predict.integer && (svs.maxclients > 1) && (!sv.paused))
478 host_client->latency = host_client->ping;
479 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_ping)))
480 val->_float = host_client->ping * 1000.0;
482 // read current angles
483 // dpprotocol version 2
484 for (i = 0;i < 3;i++)
485 angle[i] = MSG_ReadFloat ();
487 VectorCopy (angle, host_client->edict->v.v_angle);
490 move->forwardmove = MSG_ReadShort ();
491 move->sidemove = MSG_ReadShort ();
492 move->upmove = MSG_ReadShort ();
493 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_movement)))
495 val->vector[0] = move->forwardmove;
496 val->vector[1] = move->sidemove;
497 val->vector[2] = move->upmove;
501 bits = MSG_ReadByte ();
502 host_client->edict->v.button0 = bits & 1;
503 host_client->edict->v.button2 = (bits & 2)>>1;
504 // LordHavoc: added 6 new buttons
505 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button3))) val->_float = ((bits >> 2) & 1);
506 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button4))) val->_float = ((bits >> 3) & 1);
507 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button5))) val->_float = ((bits >> 4) & 1);
508 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button6))) val->_float = ((bits >> 5) & 1);
509 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button7))) val->_float = ((bits >> 6) & 1);
510 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button8))) val->_float = ((bits >> 7) & 1);
514 host_client->edict->v.impulse = i;
521 Returns false if the client should be killed
524 extern void SV_SendServerinfo (client_t *client);
525 qboolean SV_ReadClientMessage (void)
534 ret = NET_GetMessage (host_client->netconnection);
537 Sys_Printf ("SV_ReadClientMessage: NET_GetMessage failed\n");
547 if (!host_client->active)
548 // a command caused an error
553 Sys_Printf ("SV_ReadClientMessage: badread\n");
557 cmd = MSG_ReadChar ();
560 if (cmd != -1 && host_client->waitingforconnect)
562 host_client->waitingforconnect = false;
563 host_client->sendserverinfo = true;
574 Sys_Printf ("SV_ReadClientMessage: unknown command char %i\n", cmd);
581 s = MSG_ReadString ();
583 if (Q_strncasecmp(s, "status", 6) == 0
584 || Q_strncasecmp(s, "name", 4) == 0
585 || Q_strncasecmp(s, "say", 3) == 0
586 || Q_strncasecmp(s, "say_team", 8) == 0
587 || Q_strncasecmp(s, "tell", 4) == 0
588 || Q_strncasecmp(s, "color", 5) == 0
589 || Q_strncasecmp(s, "kill", 4) == 0
590 || Q_strncasecmp(s, "pause", 5) == 0
591 || Q_strncasecmp(s, "spawn", 5) == 0
592 || Q_strncasecmp(s, "begin", 5) == 0
593 || Q_strncasecmp(s, "prespawn", 8) == 0
594 || Q_strncasecmp(s, "kick", 4) == 0
595 || Q_strncasecmp(s, "ping", 4) == 0
596 || Q_strncasecmp(s, "ban", 3) == 0
597 || Q_strncasecmp(s, "pmodel", 6) == 0
598 || (gamemode == GAME_NEHAHRA && (Q_strncasecmp(s, "max", 3) == 0 || Q_strncasecmp(s, "monster", 7) == 0 || Q_strncasecmp(s, "scrag", 5) == 0 || Q_strncasecmp(s, "gimme", 5) == 0 || Q_strncasecmp(s, "wraith", 6) == 0))
599 || (gamemode != GAME_NEHAHRA && (Q_strncasecmp(s, "god", 3) == 0 || Q_strncasecmp(s, "notarget", 8) == 0 || Q_strncasecmp(s, "fly", 3) == 0 || Q_strncasecmp(s, "give", 4) == 0 || Q_strncasecmp(s, "noclip", 6) == 0)))
602 Cmd_ExecuteString (s, src_client);
605 Con_DPrintf("%s tried to %s\n", host_client->name, s);
612 SV_ReadClientMove (&host_client->cmd);
615 case clc_ackentities:
616 EntityFrame_AckFrame(&host_client->entitydatabase, MSG_ReadLong());
632 void SV_RunClients (void)
636 for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
638 if (!host_client->active)
641 sv_player = host_client->edict;
643 if (!SV_ReadClientMessage ())
645 // client misbehaved...
646 SV_DropClient (false);
650 if (!host_client->spawned)
652 // clear client movement until a new packet is received
653 memset (&host_client->cmd, 0, sizeof(host_client->cmd));
657 // always pause in single player if in console or menus
658 if (!sv.paused && (svs.maxclients > 1 || key_dest == key_game) )
660 // LordHavoc: QuakeC replacement for SV_ClientThink (player movement)
661 if (SV_PlayerPhysicsQC)
663 pr_global_struct->time = sv.time;
664 pr_global_struct->self = EDICT_TO_PROG(sv_player);
665 PR_ExecuteProgram ((func_t)(SV_PlayerPhysicsQC - pr_functions), "");