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 extern cvar_t sv_friction;
27 cvar_t sv_edgefriction = {"edgefriction", "2"};
28 cvar_t sv_predict = {"sv_predict", "1"};
29 extern cvar_t sv_stopspeed;
31 static vec3_t forward, right, up;
45 cvar_t sv_idealpitchscale = {"sv_idealpitchscale","0.8"};
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, 1, sv_player);
82 return; // looking at a wall, leave ideal the way is was
85 return; // near a dropoff
87 z[i] = top[2] + tr.fraction*(bottom[2]-top[2]);
95 if (step > -ON_EPSILON && step < ON_EPSILON)
98 if (dir && ( step-dir > ON_EPSILON || step-dir < -ON_EPSILON ) )
99 return; // mixed changes
107 sv_player->v.idealpitch = 0;
113 sv_player->v.idealpitch = -dir * sv_idealpitchscale.value;
123 void SV_UserFriction (void)
126 float speed, newspeed, control;
133 speed = sqrt(vel[0]*vel[0] +vel[1]*vel[1]);
137 // if the leading edge is over a dropoff, increase friction
138 start[0] = stop[0] = origin[0] + vel[0]/speed*16;
139 start[1] = stop[1] = origin[1] + vel[1]/speed*16;
140 start[2] = origin[2] + sv_player->v.mins[2];
141 stop[2] = start[2] - 34;
143 trace = SV_Move (start, vec3_origin, vec3_origin, stop, true, sv_player);
145 if (trace.fraction == 1.0)
146 friction = sv_friction.value*sv_edgefriction.value;
148 friction = sv_friction.value;
151 control = speed < sv_stopspeed.value ? sv_stopspeed.value : speed;
152 newspeed = speed - host_frametime*control*friction;
159 vel[0] = vel[0] * newspeed;
160 vel[1] = vel[1] * newspeed;
161 vel[2] = vel[2] * newspeed;
169 cvar_t sv_maxspeed = {"sv_maxspeed", "320", false, true};
170 cvar_t sv_accelerate = {"sv_accelerate", "10"};
172 void SV_Accelerate (vec3_t wishvel)
175 float addspeed, accelspeed;
181 VectorSubtract (wishvel, velocity, pushvec);
182 addspeed = VectorNormalize (pushvec);
184 accelspeed = sv_accelerate.value*host_frametime*addspeed;
185 if (accelspeed > addspeed)
186 accelspeed = addspeed;
188 for (i=0 ; i<3 ; i++)
189 velocity[i] += accelspeed*pushvec[i];
192 void SV_Accelerate (void)
195 float addspeed, accelspeed, currentspeed;
197 currentspeed = DotProduct (velocity, wishdir);
198 addspeed = wishspeed - currentspeed;
201 accelspeed = sv_accelerate.value*host_frametime*wishspeed;
202 if (accelspeed > addspeed)
203 accelspeed = addspeed;
205 for (i=0 ; i<3 ; i++)
206 velocity[i] += accelspeed*wishdir[i];
209 void SV_AirAccelerate (vec3_t wishveloc)
212 float addspeed, wishspd, accelspeed, currentspeed;
214 wishspd = VectorNormalizeLength (wishveloc);
217 currentspeed = DotProduct (velocity, wishveloc);
218 addspeed = wishspd - currentspeed;
221 // accelspeed = sv_accelerate.value * host_frametime;
222 accelspeed = sv_accelerate.value*wishspeed * host_frametime;
223 if (accelspeed > addspeed)
224 accelspeed = addspeed;
226 for (i=0 ; i<3 ; i++)
227 velocity[i] += accelspeed*wishveloc[i];
231 void DropPunchAngle (void)
235 len = VectorNormalizeLength (sv_player->v.punchangle);
237 len -= 10*host_frametime;
240 VectorScale (sv_player->v.punchangle, len, sv_player->v.punchangle);
249 void SV_WaterMove (void)
253 float speed, newspeed, wishspeed, addspeed, accelspeed;
258 AngleVectors (sv_player->v.v_angle, forward, right, up);
260 for (i=0 ; i<3 ; i++)
261 wishvel[i] = forward[i]*cmd.forwardmove + right[i]*cmd.sidemove;
263 if (!cmd.forwardmove && !cmd.sidemove && !cmd.upmove)
264 wishvel[2] -= 60; // drift towards bottom
266 wishvel[2] += cmd.upmove;
268 wishspeed = Length(wishvel);
269 if (wishspeed > sv_maxspeed.value)
271 VectorScale (wishvel, sv_maxspeed.value/wishspeed, wishvel);
272 wishspeed = sv_maxspeed.value;
279 speed = Length (velocity);
282 newspeed = speed - host_frametime * speed * sv_friction.value;
285 VectorScale (velocity, newspeed/speed, velocity);
291 // water acceleration
296 addspeed = wishspeed - newspeed;
300 VectorNormalize (wishvel);
301 accelspeed = sv_accelerate.value * wishspeed * host_frametime;
302 if (accelspeed > addspeed)
303 accelspeed = addspeed;
305 for (i=0 ; i<3 ; i++)
306 velocity[i] += accelspeed * wishvel[i];
309 void SV_WaterJump (void)
311 if (sv.time > sv_player->v.teleport_time
312 || !sv_player->v.waterlevel)
314 sv_player->v.flags = (int)sv_player->v.flags & ~FL_WATERJUMP;
315 sv_player->v.teleport_time = 0;
317 sv_player->v.velocity[0] = sv_player->v.movedir[0];
318 sv_player->v.velocity[1] = sv_player->v.movedir[1];
328 void SV_AirMove (void)
334 // LordHavoc: correct quake movement speed bug when looking up/down
335 wishvel[0] = wishvel[2] = 0;
336 wishvel[1] = sv_player->v.angles[1];
337 AngleVectors (wishvel, forward, right, up);
338 // AngleVectors (sv_player->v.angles, forward, right, up);
340 fmove = cmd.forwardmove;
341 smove = cmd.sidemove;
343 // hack to not let you back into teleporter
344 if (sv.time < sv_player->v.teleport_time && fmove < 0)
347 for (i=0 ; i<3 ; i++)
348 wishvel[i] = forward[i]*fmove + right[i]*smove;
350 if ( (int)sv_player->v.movetype != MOVETYPE_WALK)
351 wishvel[2] = cmd.upmove;
355 VectorCopy (wishvel, wishdir);
356 wishspeed = VectorNormalizeLength(wishdir);
357 if (wishspeed > sv_maxspeed.value)
359 VectorScale (wishvel, sv_maxspeed.value/wishspeed, wishvel);
360 wishspeed = sv_maxspeed.value;
363 if ( sv_player->v.movetype == MOVETYPE_NOCLIP)
365 VectorCopy (wishvel, velocity);
373 { // not on ground, so little effect on velocity
374 SV_AirAccelerate (wishvel);
382 the move fields specify an intended velocity in pix/sec
383 the angle fields specify an exact angular motion in degrees
386 void SV_ClientThink (void)
390 if (sv_player->v.movetype == MOVETYPE_NONE)
393 onground = (int)sv_player->v.flags & FL_ONGROUND;
395 origin = sv_player->v.origin;
396 velocity = sv_player->v.velocity;
401 // if dead, behave differently
403 if (sv_player->v.health <= 0)
408 // show 1/3 the pitch angle and all the roll angle
409 cmd = host_client->cmd;
410 angles = sv_player->v.angles;
412 VectorAdd (sv_player->v.v_angle, sv_player->v.punchangle, v_angle);
413 angles[ROLL] = V_CalcRoll (sv_player->v.angles, sv_player->v.velocity)*4;
414 if (!sv_player->v.fixangle)
416 // LordHavoc: pitch was ugly to begin with... removed except in water
417 if (sv_player->v.waterlevel >= 2)
418 angles[PITCH] = -v_angle[PITCH]/3;
421 angles[YAW] = v_angle[YAW];
424 if ( (int)sv_player->v.flags & FL_WATERJUMP )
432 if ( (sv_player->v.waterlevel >= 2)
433 && (sv_player->v.movetype != MOVETYPE_NOCLIP) )
448 void SV_ReadClientMove (usercmd_t *move)
457 host_client->ping_times[host_client->num_pings%NUM_PING_TIMES]
458 = sv.time - MSG_ReadFloat ();
459 host_client->num_pings++;
460 for (i=0, total = 0;i < NUM_PING_TIMES;i++)
461 total += host_client->ping_times[i];
462 host_client->ping = total / NUM_PING_TIMES; // can be used for prediction
463 host_client->latency = 0;
464 if (sv_predict.value && (svs.maxclients > 1) && (!sv.paused)) // if paused or a local game, don't predict
465 host_client->latency = host_client->ping;
466 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_ping)))
467 val->_float = host_client->ping * 1000.0;
469 // read current angles
472 for (i=0 ; i<3 ; i++)
473 angle[i] = MSG_ReadPreciseAngle ();
477 for (i=0 ; i<3 ; i++)
478 angle[i] = MSG_ReadAngle ();
481 VectorCopy (angle, host_client->edict->v.v_angle);
484 move->forwardmove = MSG_ReadShort ();
485 move->sidemove = MSG_ReadShort ();
486 move->upmove = MSG_ReadShort ();
487 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_movement)))
489 val->vector[0] = move->forwardmove;
490 val->vector[1] = move->sidemove;
491 val->vector[2] = move->upmove;
495 bits = MSG_ReadByte ();
496 host_client->edict->v.button0 = bits & 1;
497 host_client->edict->v.button2 = (bits & 2)>>1;
498 // LordHavoc: added 6 new buttons
499 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button3))) val->_float = ((bits >> 2) & 1);
500 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button4))) val->_float = ((bits >> 3) & 1);
501 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button5))) val->_float = ((bits >> 4) & 1);
502 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button6))) val->_float = ((bits >> 5) & 1);
503 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button7))) val->_float = ((bits >> 6) & 1);
504 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button8))) val->_float = ((bits >> 7) & 1);
508 host_client->edict->v.impulse = i;
515 Returns false if the client should be killed
518 qboolean SV_ReadClientMessage (void)
527 ret = NET_GetMessage (host_client->netconnection);
530 Sys_Printf ("SV_ReadClientMessage: NET_GetMessage failed\n");
540 if (!host_client->active)
541 return false; // a command caused an error
545 Sys_Printf ("SV_ReadClientMessage: badread\n");
549 cmd = MSG_ReadChar ();
554 goto nextmsg; // end of message
557 Sys_Printf ("SV_ReadClientMessage: unknown command char\n");
561 // Sys_Printf ("clc_nop\n");
565 s = MSG_ReadString ();
567 if (Q_strncasecmp(s, "status", 6) == 0
568 || Q_strncasecmp(s, "name", 4) == 0
569 || Q_strncasecmp(s, "say", 3) == 0
570 || Q_strncasecmp(s, "say_team", 8) == 0
571 || Q_strncasecmp(s, "tell", 4) == 0
572 || Q_strncasecmp(s, "color", 5) == 0
573 || Q_strncasecmp(s, "kill", 4) == 0
574 || Q_strncasecmp(s, "pause", 5) == 0
575 || Q_strncasecmp(s, "spawn", 5) == 0
576 || Q_strncasecmp(s, "begin", 5) == 0
577 || Q_strncasecmp(s, "prespawn", 8) == 0
578 || Q_strncasecmp(s, "kick", 4) == 0
579 || Q_strncasecmp(s, "ping", 4) == 0
580 || Q_strncasecmp(s, "ban", 3) == 0
581 || Q_strncasecmp(s, "pmodel", 6) == 0
582 || (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))
583 || (!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)))
586 Cmd_ExecuteString (s, src_client);
589 Con_DPrintf("%s tried to %s\n", host_client->name, s);
594 Cmd_ExecuteString (s, src_client);
596 Con_DPrintf("%s tried to %s\n", host_client->name, s);
601 // Sys_Printf ("SV_ReadClientMessage: client disconnected\n");
605 SV_ReadClientMove (&host_client->cmd);
620 extern dfunction_t *SV_PlayerPhysicsQC;
621 void SV_RunClients (void)
625 for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
627 if (!host_client->active)
630 sv_player = host_client->edict;
632 if (!SV_ReadClientMessage ())
634 SV_DropClient (false); // client misbehaved...
638 if (!host_client->spawned)
640 // clear client movement until a new packet is received
641 memset (&host_client->cmd, 0, sizeof(host_client->cmd));
645 // always pause in single player if in console or menus
646 if (!sv.paused && (svs.maxclients > 1 || key_dest == key_game) )
648 // LordHavoc: QuakeC replacement for SV_ClientThink (player movement)
649 if (SV_PlayerPhysicsQC)
651 pr_global_struct->time = sv.time;
652 pr_global_struct->self = EDICT_TO_PROG(sv_player);
653 PR_ExecuteProgram ((func_t)(SV_PlayerPhysicsQC - pr_functions), "");