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);
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, MOVE_NOMONSTERS, 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 - sv.frametime*control*friction;
159 vel[0] = vel[0] * newspeed;
160 vel[1] = vel[1] * newspeed;
161 vel[2] = vel[2] * newspeed;
169 void SV_Accelerate (void)
172 float addspeed, accelspeed, currentspeed;
174 currentspeed = DotProduct (velocity, wishdir);
175 addspeed = wishspeed - currentspeed;
178 accelspeed = sv_accelerate.value*sv.frametime*wishspeed;
179 if (accelspeed > addspeed)
180 accelspeed = addspeed;
182 for (i=0 ; i<3 ; i++)
183 velocity[i] += accelspeed*wishdir[i];
186 void SV_AirAccelerate (vec3_t wishveloc)
189 float addspeed, wishspd, accelspeed, currentspeed;
191 wishspd = VectorNormalizeLength (wishveloc);
194 currentspeed = DotProduct (velocity, wishveloc);
195 addspeed = wishspd - currentspeed;
198 accelspeed = sv_accelerate.value*wishspeed * sv.frametime;
199 if (accelspeed > addspeed)
200 accelspeed = addspeed;
202 for (i=0 ; i<3 ; i++)
203 velocity[i] += accelspeed*wishveloc[i];
207 void DropPunchAngle (void)
212 len = VectorNormalizeLength (sv_player->v.punchangle);
214 len -= 10*sv.frametime;
217 VectorScale (sv_player->v.punchangle, len, sv_player->v.punchangle);
219 if ((val = GETEDICTFIELDVALUE(sv_player, eval_punchvector)))
221 len = VectorNormalizeLength (val->vector);
223 len -= 20*sv.frametime;
226 VectorScale (val->vector, len, val->vector);
236 void SV_WaterMove (void)
240 float speed, newspeed, wishspeed, addspeed, accelspeed, temp;
245 AngleVectors (sv_player->v.v_angle, forward, right, up);
247 for (i=0 ; i<3 ; i++)
248 wishvel[i] = forward[i]*cmd.forwardmove + right[i]*cmd.sidemove;
250 if (!cmd.forwardmove && !cmd.sidemove && !cmd.upmove)
251 wishvel[2] -= 60; // drift towards bottom
253 wishvel[2] += cmd.upmove;
255 wishspeed = VectorLength(wishvel);
256 if (wishspeed > sv_maxspeed.value)
258 temp = sv_maxspeed.value/wishspeed;
259 VectorScale (wishvel, temp, wishvel);
260 wishspeed = sv_maxspeed.value;
267 speed = VectorLength (velocity);
270 newspeed = speed - sv.frametime * speed * sv_friction.value;
273 temp = newspeed/speed;
274 VectorScale (velocity, temp, velocity);
280 // water acceleration
285 addspeed = wishspeed - newspeed;
289 VectorNormalize (wishvel);
290 accelspeed = sv_accelerate.value * wishspeed * sv.frametime;
291 if (accelspeed > addspeed)
292 accelspeed = addspeed;
294 for (i=0 ; i<3 ; i++)
295 velocity[i] += accelspeed * wishvel[i];
298 void SV_WaterJump (void)
300 if (sv.time > sv_player->v.teleport_time
301 || !sv_player->v.waterlevel)
303 sv_player->v.flags = (int)sv_player->v.flags & ~FL_WATERJUMP;
304 sv_player->v.teleport_time = 0;
306 sv_player->v.velocity[0] = sv_player->v.movedir[0];
307 sv_player->v.velocity[1] = sv_player->v.movedir[1];
317 void SV_AirMove (void)
321 float fmove, smove, temp;
323 // LordHavoc: correct quake movement speed bug when looking up/down
324 wishvel[0] = wishvel[2] = 0;
325 wishvel[1] = sv_player->v.angles[1];
326 AngleVectors (wishvel, forward, right, up);
328 fmove = cmd.forwardmove;
329 smove = cmd.sidemove;
331 // hack to not let you back into teleporter
332 if (sv.time < sv_player->v.teleport_time && fmove < 0)
335 for (i=0 ; i<3 ; i++)
336 wishvel[i] = forward[i]*fmove + right[i]*smove;
338 if ( (int)sv_player->v.movetype != MOVETYPE_WALK)
339 wishvel[2] = cmd.upmove;
343 VectorCopy (wishvel, wishdir);
344 wishspeed = VectorNormalizeLength(wishdir);
345 if (wishspeed > sv_maxspeed.value)
347 temp = sv_maxspeed.value/wishspeed;
348 VectorScale (wishvel, temp, wishvel);
349 wishspeed = sv_maxspeed.value;
352 if ( sv_player->v.movetype == MOVETYPE_NOCLIP)
354 VectorCopy (wishvel, velocity);
362 { // not on ground, so little effect on velocity
363 SV_AirAccelerate (wishvel);
371 the move fields specify an intended velocity in pix/sec
372 the angle fields specify an exact angular motion in degrees
375 void SV_ClientThink (void)
379 if (sv_player->v.movetype == MOVETYPE_NONE)
382 onground = (int)sv_player->v.flags & FL_ONGROUND;
384 origin = sv_player->v.origin;
385 velocity = sv_player->v.velocity;
390 // if dead, behave differently
392 if (sv_player->v.health <= 0)
397 // show 1/3 the pitch angle and all the roll angle
398 cmd = host_client->cmd;
399 angles = sv_player->v.angles;
401 VectorAdd (sv_player->v.v_angle, sv_player->v.punchangle, v_angle);
402 angles[ROLL] = V_CalcRoll (sv_player->v.angles, sv_player->v.velocity)*4;
403 if (!sv_player->v.fixangle)
405 // LordHavoc: pitch was ugly to begin with... removed except in water
406 if (sv_player->v.waterlevel >= 2)
407 angles[PITCH] = -v_angle[PITCH]/3;
410 angles[YAW] = v_angle[YAW];
413 if ( (int)sv_player->v.flags & FL_WATERJUMP )
421 if ( (sv_player->v.waterlevel >= 2) && (sv_player->v.movetype != MOVETYPE_NOCLIP) )
436 void SV_ReadClientMove (usercmd_t *move)
445 host_client->ping_times[host_client->num_pings % NUM_PING_TIMES] = sv.time - MSG_ReadFloat ();
446 host_client->num_pings++;
447 for (i=0, total = 0;i < NUM_PING_TIMES;i++)
448 total += host_client->ping_times[i];
449 host_client->ping = total / NUM_PING_TIMES; // can be used for prediction
450 host_client->latency = 0;
451 if (sv_predict.integer && (svs.maxclients > 1) && (!sv.paused)) // if paused or a local game, don't predict
452 host_client->latency = host_client->ping;
453 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_ping)))
454 val->_float = host_client->ping * 1000.0;
456 // read current angles
457 // dpprotocol version 2
458 for (i = 0;i < 3;i++)
459 angle[i] = MSG_ReadFloat ();
461 VectorCopy (angle, host_client->edict->v.v_angle);
464 move->forwardmove = MSG_ReadShort ();
465 move->sidemove = MSG_ReadShort ();
466 move->upmove = MSG_ReadShort ();
467 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_movement)))
469 val->vector[0] = move->forwardmove;
470 val->vector[1] = move->sidemove;
471 val->vector[2] = move->upmove;
475 bits = MSG_ReadByte ();
476 host_client->edict->v.button0 = bits & 1;
477 host_client->edict->v.button2 = (bits & 2)>>1;
478 // LordHavoc: added 6 new buttons
479 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button3))) val->_float = ((bits >> 2) & 1);
480 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button4))) val->_float = ((bits >> 3) & 1);
481 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button5))) val->_float = ((bits >> 4) & 1);
482 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button6))) val->_float = ((bits >> 5) & 1);
483 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button7))) val->_float = ((bits >> 6) & 1);
484 if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button8))) val->_float = ((bits >> 7) & 1);
488 host_client->edict->v.impulse = i;
495 Returns false if the client should be killed
498 void SV_SendServerinfo (client_t *client);
499 qboolean SV_ReadClientMessage (void)
508 ret = NET_GetMessage (host_client->netconnection);
511 Sys_Printf ("SV_ReadClientMessage: NET_GetMessage failed\n");
521 if (!host_client->active)
522 return false; // a command caused an error
526 Sys_Printf ("SV_ReadClientMessage: badread\n");
530 cmd = MSG_ReadChar ();
533 if (cmd != -1 && host_client->waitingforconnect)
535 host_client->waitingforconnect = false;
536 host_client->sendserverinfo = true;
543 goto nextmsg; // end of message
546 Sys_Printf ("SV_ReadClientMessage: unknown command char %i\n", cmd);
553 s = MSG_ReadString ();
555 if (Q_strncasecmp(s, "status", 6) == 0
556 || Q_strncasecmp(s, "name", 4) == 0
557 || Q_strncasecmp(s, "say", 3) == 0
558 || Q_strncasecmp(s, "say_team", 8) == 0
559 || Q_strncasecmp(s, "tell", 4) == 0
560 || Q_strncasecmp(s, "color", 5) == 0
561 || Q_strncasecmp(s, "kill", 4) == 0
562 || Q_strncasecmp(s, "pause", 5) == 0
563 || Q_strncasecmp(s, "spawn", 5) == 0
564 || Q_strncasecmp(s, "begin", 5) == 0
565 || Q_strncasecmp(s, "prespawn", 8) == 0
566 || Q_strncasecmp(s, "kick", 4) == 0
567 || Q_strncasecmp(s, "ping", 4) == 0
568 || Q_strncasecmp(s, "ban", 3) == 0
569 || Q_strncasecmp(s, "pmodel", 6) == 0
570 || (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))
571 || (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)))
574 Cmd_ExecuteString (s, src_client);
577 Con_DPrintf("%s tried to %s\n", host_client->name, s);
584 SV_ReadClientMove (&host_client->cmd);
587 case clc_ackentities:
588 EntityFrame_AckFrame(&host_client->entitydatabase, MSG_ReadLong());
603 void SV_RunClients (void)
607 for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
609 if (!host_client->active)
612 sv_player = host_client->edict;
614 if (!SV_ReadClientMessage ())
616 SV_DropClient (false); // client misbehaved...
620 if (!host_client->spawned)
622 // clear client movement until a new packet is received
623 memset (&host_client->cmd, 0, sizeof(host_client->cmd));
627 // always pause in single player if in console or menus
628 if (!sv.paused && (svs.maxclients > 1 || key_dest == key_game) )
630 // LordHavoc: QuakeC replacement for SV_ClientThink (player movement)
631 if (SV_PlayerPhysicsQC)
633 pr_global_struct->time = sv.time;
634 pr_global_struct->self = EDICT_TO_PROG(sv_player);
635 PR_ExecuteProgram ((func_t)(SV_PlayerPhysicsQC - pr_functions), "");