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
25 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1", "how much you slow down when sliding along a wall"};
26 cvar_t sv_stepheight = {CVAR_NOTIFY, "sv_stepheight", "18", "how high you can step up (TW_SV_STEPCONTROL extension)"};
27 cvar_t sv_stopspeed = {CVAR_NOTIFY, "sv_stopspeed","100", "how fast you come to a complete stop"};
28 cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
29 cvar_t sv_waterfriction = {CVAR_NOTIFY, "sv_waterfriction","-1", "how fast you slow down, if less than 0 the sv_friction variable is used instead"};
30 cvar_t sv_edgefriction = {0, "edgefriction", "2", "how much you slow down when nearing a ledge you might fall off"};
31 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
32 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
33 cvar_t sv_maxairspeed = {0, "sv_maxairspeed", "30", "maximum speed a player can accelerate to when airborn (note that it is possible to completely stop by moving the opposite direction)"};
34 cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
35 cvar_t sv_airaccelerate = {0, "sv_airaccelerate", "-1", "rate at which a player accelerates to sv_maxairspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
36 cvar_t sv_wateraccelerate = {0, "sv_wateraccelerate", "-1", "rate at which a player accelerates to sv_maxspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
37 cvar_t sv_jumpvelocity = {0, "sv_jumpvelocity", "270", "cvar that can be used by QuakeC code for jump velocity"};
38 cvar_t sv_airaccel_qw = {0, "sv_airaccel_qw", "1", "ratio of QW-style air control as opposed to simple acceleration"};
39 cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccel_sideways_friction", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging)"};
40 cvar_t sv_clmovement_enable = {0, "sv_clmovement_enable", "1", "whether to allow clients to use cl_movement prediction, which can cause choppy movement on the server which may annoy other players"};
41 cvar_t sv_clmovement_minping = {0, "sv_clmovement_minping", "0", "if client ping is below this time in milliseconds, then their ability to use cl_movement prediction is disabled for a while (as they don't need it)"};
42 cvar_t sv_clmovement_minping_disabletime = {0, "sv_clmovement_minping_disabletime", "1000", "when client falls below minping, disable their prediction for this many milliseconds (should be at least 1000 or else their prediction may turn on/off frequently)"};
43 cvar_t sv_clmovement_waitforinput = {0, "sv_clmovement_waitforinput", "16", "when a client does not send input for this many frames, force them to move anyway (unlike QuakeWorld)"};
54 void SV_SetIdealPitch (void)
56 float angleval, sinval, cosval, step, dir;
63 if (!((int)host_client->edict->fields.server->flags & FL_ONGROUND))
66 angleval = host_client->edict->fields.server->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] = host_client->edict->fields.server->origin[0] + cosval*(i+3)*12;
73 top[1] = host_client->edict->fields.server->origin[1] + sinval*(i+3)*12;
74 top[2] = host_client->edict->fields.server->origin[2] + host_client->edict->fields.server->view_ofs[2];
78 bottom[2] = top[2] - 160;
80 tr = SV_Move (top, vec3_origin, vec3_origin, bottom, MOVE_NOMONSTERS, host_client->edict, SUPERCONTENTS_SOLID);
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 host_client->edict->fields.server->idealpitch = 0;
116 host_client->edict->fields.server->idealpitch = -dir * sv_idealpitchscale.value;
119 static vec3_t wishdir, forward, right, up;
120 static float wishspeed;
122 static qboolean onground;
130 void SV_UserFriction (void)
132 float speed, newspeed, control, friction;
136 speed = sqrt(host_client->edict->fields.server->velocity[0]*host_client->edict->fields.server->velocity[0]+host_client->edict->fields.server->velocity[1]*host_client->edict->fields.server->velocity[1]);
140 // if the leading edge is over a dropoff, increase friction
141 start[0] = stop[0] = host_client->edict->fields.server->origin[0] + host_client->edict->fields.server->velocity[0]/speed*16;
142 start[1] = stop[1] = host_client->edict->fields.server->origin[1] + host_client->edict->fields.server->velocity[1]/speed*16;
143 start[2] = host_client->edict->fields.server->origin[2] + host_client->edict->fields.server->mins[2];
144 stop[2] = start[2] - 34;
146 trace = SV_Move (start, vec3_origin, vec3_origin, stop, MOVE_NOMONSTERS, host_client->edict, SV_GenericHitSuperContentsMask(host_client->edict));
148 if (trace.fraction == 1.0)
149 friction = sv_friction.value*sv_edgefriction.value;
151 friction = sv_friction.value;
154 control = speed < sv_stopspeed.value ? sv_stopspeed.value : speed;
155 newspeed = speed - sv.frametime*control*friction;
162 VectorScale(host_client->edict->fields.server->velocity, newspeed, host_client->edict->fields.server->velocity);
170 void SV_Accelerate (void)
173 float addspeed, accelspeed, currentspeed;
175 currentspeed = DotProduct (host_client->edict->fields.server->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 host_client->edict->fields.server->velocity[i] += accelspeed*wishdir[i];
187 void SV_AirAccelerate (vec3_t wishveloc)
190 float addspeed, wishspd, accelspeed, currentspeed;
192 wishspd = VectorNormalizeLength (wishveloc);
193 if (wishspd > sv_maxairspeed.value)
194 wishspd = sv_maxairspeed.value;
195 currentspeed = DotProduct (host_client->edict->fields.server->velocity, wishveloc);
196 addspeed = wishspd - currentspeed;
199 accelspeed = (sv_airaccelerate.value < 0 ? sv_accelerate.value : sv_airaccelerate.value)*wishspeed * sv.frametime;
200 if (accelspeed > addspeed)
201 accelspeed = addspeed;
203 for (i=0 ; i<3 ; i++)
204 host_client->edict->fields.server->velocity[i] += accelspeed*wishveloc[i];
208 void DropPunchAngle (void)
213 len = VectorNormalizeLength (host_client->edict->fields.server->punchangle);
215 len -= 10*sv.frametime;
218 VectorScale (host_client->edict->fields.server->punchangle, len, host_client->edict->fields.server->punchangle);
220 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.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 (host_client->edict->fields.server->v_angle, forward, right, up);
243 for (i = 0; i < 3; i++)
244 host_client->edict->fields.server->velocity[i] = forward[i] * cmd.forwardmove + right[i] * cmd.sidemove;
246 host_client->edict->fields.server->velocity[2] += cmd.upmove;
248 wishspeed = VectorLength(host_client->edict->fields.server->velocity);
249 if (wishspeed > sv_maxspeed.value)
250 VectorScale(host_client->edict->fields.server->velocity, sv_maxspeed.value / wishspeed, host_client->edict->fields.server->velocity);
259 void SV_WaterMove (void)
263 float speed, newspeed, wishspeed, addspeed, accelspeed, temp;
266 AngleVectors (host_client->edict->fields.server->v_angle, forward, right, up);
268 for (i=0 ; i<3 ; i++)
269 wishvel[i] = forward[i]*cmd.forwardmove + right[i]*cmd.sidemove;
271 if (!cmd.forwardmove && !cmd.sidemove && !cmd.upmove)
272 wishvel[2] -= 60; // drift towards bottom
274 wishvel[2] += cmd.upmove;
276 wishspeed = VectorLength(wishvel);
277 if (wishspeed > sv_maxspeed.value)
279 temp = sv_maxspeed.value/wishspeed;
280 VectorScale (wishvel, temp, wishvel);
281 wishspeed = sv_maxspeed.value;
286 speed = VectorLength(host_client->edict->fields.server->velocity);
289 newspeed = speed - sv.frametime * speed * (sv_waterfriction.value < 0 ? sv_friction.value : sv_waterfriction.value);
292 temp = newspeed/speed;
293 VectorScale(host_client->edict->fields.server->velocity, temp, host_client->edict->fields.server->velocity);
298 // water acceleration
302 addspeed = wishspeed - newspeed;
306 VectorNormalize (wishvel);
307 accelspeed = (sv_wateraccelerate.value < 0 ? sv_accelerate.value : sv_wateraccelerate.value) * wishspeed * sv.frametime;
308 if (accelspeed > addspeed)
309 accelspeed = addspeed;
311 for (i=0 ; i<3 ; i++)
312 host_client->edict->fields.server->velocity[i] += accelspeed * wishvel[i];
315 void SV_WaterJump (void)
317 if (sv.time > host_client->edict->fields.server->teleport_time || !host_client->edict->fields.server->waterlevel)
319 host_client->edict->fields.server->flags = (int)host_client->edict->fields.server->flags & ~FL_WATERJUMP;
320 host_client->edict->fields.server->teleport_time = 0;
322 host_client->edict->fields.server->velocity[0] = host_client->edict->fields.server->movedir[0];
323 host_client->edict->fields.server->velocity[1] = host_client->edict->fields.server->movedir[1];
333 void SV_AirMove (void)
337 float fmove, smove, temp;
339 // LordHavoc: correct quake movement speed bug when looking up/down
340 wishvel[0] = wishvel[2] = 0;
341 wishvel[1] = host_client->edict->fields.server->angles[1];
342 AngleVectors (wishvel, forward, right, up);
344 fmove = cmd.forwardmove;
345 smove = cmd.sidemove;
347 // hack to not let you back into teleporter
348 if (sv.time < host_client->edict->fields.server->teleport_time && fmove < 0)
351 for (i=0 ; i<3 ; i++)
352 wishvel[i] = forward[i]*fmove + right[i]*smove;
354 if ((int)host_client->edict->fields.server->movetype != MOVETYPE_WALK)
355 wishvel[2] += cmd.upmove;
357 VectorCopy (wishvel, wishdir);
358 wishspeed = VectorNormalizeLength(wishdir);
359 if (wishspeed > sv_maxspeed.value)
361 temp = sv_maxspeed.value/wishspeed;
362 VectorScale (wishvel, temp, wishvel);
363 wishspeed = sv_maxspeed.value;
366 if (host_client->edict->fields.server->movetype == MOVETYPE_NOCLIP)
369 VectorCopy (wishvel, host_client->edict->fields.server->velocity);
371 else if (onground && (!sv_gameplayfix_qwplayerphysics.integer || !(host_client->edict->fields.server->button2 || !((int)host_client->edict->fields.server->flags & FL_JUMPRELEASED))))
378 // not on ground, so little effect on velocity
379 SV_AirAccelerate (wishvel);
387 the move fields specify an intended velocity in pix/sec
388 the angle fields specify an exact angular motion in degrees
391 extern cvar_t sv_playerphysicsqc;
392 void SV_ClientThink (void)
396 SV_ApplyClientMove();
397 // make sure the velocity is sane (not a NaN)
398 SV_CheckVelocity(host_client->edict);
400 // LordHavoc: QuakeC replacement for SV_ClientThink (player movement)
401 if (prog->funcoffsets.SV_PlayerPhysics && sv_playerphysicsqc.integer)
403 prog->globals.server->time = sv.time;
404 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
405 PRVM_ExecuteProgram (prog->funcoffsets.SV_PlayerPhysics, "QC function SV_PlayerPhysics is missing");
406 SV_CheckVelocity(host_client->edict);
410 if (host_client->edict->fields.server->movetype == MOVETYPE_NONE)
413 onground = (int)host_client->edict->fields.server->flags & FL_ONGROUND;
417 // if dead, behave differently
418 if (host_client->edict->fields.server->health <= 0)
421 cmd = host_client->cmd;
424 // show 1/3 the pitch angle and all the roll angle
425 VectorAdd (host_client->edict->fields.server->v_angle, host_client->edict->fields.server->punchangle, v_angle);
426 host_client->edict->fields.server->angles[ROLL] = V_CalcRoll (host_client->edict->fields.server->angles, host_client->edict->fields.server->velocity)*4;
427 if (!host_client->edict->fields.server->fixangle)
429 host_client->edict->fields.server->angles[PITCH] = -v_angle[PITCH]/3;
430 host_client->edict->fields.server->angles[YAW] = v_angle[YAW];
433 if ( (int)host_client->edict->fields.server->flags & FL_WATERJUMP )
436 SV_CheckVelocity(host_client->edict);
441 // Player is (somehow) outside of the map, or flying, or noclipping
442 if (host_client->edict->fields.server->movetype != MOVETYPE_NOCLIP && (host_client->edict->fields.server->movetype == MOVETYPE_FLY || SV_TestEntityPosition (host_client->edict)))
443 //if (host_client->edict->fields.server->movetype == MOVETYPE_NOCLIP || host_client->edict->fields.server->movetype == MOVETYPE_FLY || SV_TestEntityPosition (host_client->edict))
451 if ((host_client->edict->fields.server->waterlevel >= 2) && (host_client->edict->fields.server->movetype != MOVETYPE_NOCLIP))
454 SV_CheckVelocity(host_client->edict);
459 SV_CheckVelocity(host_client->edict);
467 int sv_numreadmoves = 0;
468 usercmd_t sv_readmoves[CL_MAX_USERCMDS];
469 void SV_ReadClientMove (void)
473 usercmd_t *move = &newmove;
475 memset(move, 0, sizeof(*move));
477 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
480 if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_DARKPLACES1 && sv.protocol != PROTOCOL_DARKPLACES2 && sv.protocol != PROTOCOL_DARKPLACES3 && sv.protocol != PROTOCOL_DARKPLACES4 && sv.protocol != PROTOCOL_DARKPLACES5 && sv.protocol != PROTOCOL_DARKPLACES6)
481 move->sequence = MSG_ReadLong ();
482 move->time = MSG_ReadFloat ();
483 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
484 move->receivetime = (float)sv.time;
487 Con_Printf("%s move%i #%i %ims (%ims) %i %i '%i %i %i' '%i %i %i'\n", move->time > move->receivetime ? "^3read future" : "^4read normal", sv_numreadmoves + 1, move->sequence, (int)floor((move->time - host_client->cmd.time) * 1000.0 + 0.5), (int)floor(move->time * 1000.0 + 0.5), move->impulse, move->buttons, (int)move->viewangles[0], (int)move->viewangles[1], (int)move->viewangles[2], (int)move->forwardmove, (int)move->sidemove, (int)move->upmove);
489 // limit reported time to current time
490 // (incase the client is trying to cheat)
491 move->time = min(move->time, move->receivetime + sv.frametime);
493 // read current angles
494 for (i = 0;i < 3;i++)
496 if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE)
497 move->viewangles[i] = MSG_ReadAngle8i();
498 else if (sv.protocol == PROTOCOL_DARKPLACES1)
499 move->viewangles[i] = MSG_ReadAngle16i();
500 else if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
501 move->viewangles[i] = MSG_ReadAngle32f();
503 move->viewangles[i] = MSG_ReadAngle16i();
505 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
508 move->forwardmove = MSG_ReadCoord16i ();
509 move->sidemove = MSG_ReadCoord16i ();
510 move->upmove = MSG_ReadCoord16i ();
511 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
514 // be sure to bitwise OR them into the move->buttons because we want to
515 // accumulate button presses from multiple packets per actual move
516 if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
517 move->buttons = MSG_ReadByte ();
519 move->buttons = MSG_ReadLong ();
520 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
523 move->impulse = MSG_ReadByte ();
524 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
526 // PRYDON_CLIENTCURSOR
527 if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_DARKPLACES1 && sv.protocol != PROTOCOL_DARKPLACES2 && sv.protocol != PROTOCOL_DARKPLACES3 && sv.protocol != PROTOCOL_DARKPLACES4 && sv.protocol != PROTOCOL_DARKPLACES5)
530 move->cursor_screen[0] = MSG_ReadShort() * (1.0f / 32767.0f);
531 move->cursor_screen[1] = MSG_ReadShort() * (1.0f / 32767.0f);
532 move->cursor_start[0] = MSG_ReadFloat();
533 move->cursor_start[1] = MSG_ReadFloat();
534 move->cursor_start[2] = MSG_ReadFloat();
535 move->cursor_impact[0] = MSG_ReadFloat();
536 move->cursor_impact[1] = MSG_ReadFloat();
537 move->cursor_impact[2] = MSG_ReadFloat();
538 move->cursor_entitynumber = (unsigned short)MSG_ReadShort();
539 if (move->cursor_entitynumber >= prog->max_edicts)
541 Con_DPrintf("SV_ReadClientMessage: client send bad cursor_entitynumber\n");
542 move->cursor_entitynumber = 0;
544 // as requested by FrikaC, cursor_trace_ent is reset to world if the
545 // entity is free at time of receipt
546 if (PRVM_EDICT_NUM(move->cursor_entitynumber)->priv.server->free)
547 move->cursor_entitynumber = 0;
548 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
551 // if the previous move has not been applied yet, we need to accumulate
552 // the impulse/buttons from it
553 if (!host_client->cmd.applied)
556 move->impulse = host_client->cmd.impulse;
557 move->buttons |= host_client->cmd.buttons;
560 // now store this move for later execution
561 // (we have to buffer the moves because of old ones being repeated)
562 if (sv_numreadmoves < CL_MAX_USERCMDS)
563 sv_readmoves[sv_numreadmoves++] = *move;
566 void SV_ExecuteClientMoves(void)
571 double oldframetime2;
572 #ifdef NUM_PING_TIMES
576 if (sv_numreadmoves < 1)
578 // only start accepting input once the player is spawned
579 if (!host_client->spawned)
582 Con_Printf("SV_ExecuteClientMoves: read %i moves at sv.time %f\n", sv_numreadmoves, (float)sv.time);
584 // disable clientside movement prediction in some cases
585 if (ceil(max(sv_readmoves[sv_numreadmoves-1].receivetime - sv_readmoves[sv_numreadmoves-1].time, 0) * 1000.0) < sv_clmovement_minping.integer)
586 host_client->clmovement_disabletimeout = realtime + sv_clmovement_minping_disabletime.value / 1000.0;
587 // several conditions govern whether clientside movement prediction is allowed
588 if (sv_readmoves[sv_numreadmoves-1].sequence && sv_clmovement_enable.integer && sv_clmovement_waitforinput.integer > 0 && host_client->clmovement_disabletimeout <= realtime && host_client->edict->fields.server->movetype == MOVETYPE_WALK && (!(val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.disableclientprediction)) || !val->_float))
590 // process the moves in order and ignore old ones
591 // but always trust the latest move
592 // (this deals with bogus initial move sequences after level change,
593 // where the client will eventually catch up with the level change
594 // and reset its move sequence)
595 for (moveindex = 0;moveindex < sv_numreadmoves;moveindex++)
597 usercmd_t *move = sv_readmoves + moveindex;
598 if (host_client->movesequence < move->sequence || moveindex == sv_numreadmoves - 1)
601 Con_Printf("%smove #%i %ims (%ims) %i %i '%i %i %i' '%i %i %i'\n", (move->time - host_client->cmd.time) > sv.frametime * 1.01 ? "^1" : "^2", move->sequence, (int)floor((move->time - host_client->cmd.time) * 1000.0 + 0.5), (int)floor(move->time * 1000.0 + 0.5), move->impulse, move->buttons, (int)move->viewangles[0], (int)move->viewangles[1], (int)move->viewangles[2], (int)move->forwardmove, (int)move->sidemove, (int)move->upmove);
603 // this is a new move
604 moveframetime = bound(0, move->time - host_client->cmd.time, 0.1);
605 //Con_Printf("movesequence = %i (%i lost), moveframetime = %f\n", move->sequence, move->sequence ? move->sequence - host_client->movesequence - 1 : 0, moveframetime);
606 host_client->cmd = *move;
607 host_client->movesequence = move->sequence;
609 // if using prediction, we need to perform moves when packets are
610 // received, even if multiple occur in one frame
611 // (they can't go beyond the current time so there is no cheat issue
612 // with this approach, and if they don't send input for a while they
613 // start moving anyway, so the longest 'lagaport' possible is
614 // determined by the sv_clmovement_waitforinput cvar)
615 if (moveframetime <= 0)
617 oldframetime = prog->globals.server->frametime;
618 oldframetime2 = sv.frametime;
619 // update ping time for qc to see while executing this move
620 host_client->ping = host_client->cmd.receivetime - host_client->cmd.time;
621 // the server and qc frametime values must be changed temporarily
622 prog->globals.server->frametime = sv.frametime = moveframetime;
623 // if move is more than 50ms, split it into two moves (this matches QWSV behavior and the client prediction)
624 if (sv.frametime > 0.05)
626 prog->globals.server->frametime = sv.frametime = moveframetime * 0.5f;
627 SV_Physics_ClientMove();
629 SV_Physics_ClientMove();
630 sv.frametime = oldframetime2;
631 prog->globals.server->frametime = oldframetime;
632 host_client->clmovement_skipphysicsframes = sv_clmovement_waitforinput.integer;
638 // try to gather button bits from old moves, but only if their time is
639 // advancing (ones with the same timestamp can't be trusted)
640 for (moveindex = 0;moveindex < sv_numreadmoves-1;moveindex++)
642 usercmd_t *move = sv_readmoves + moveindex;
643 if (host_client->cmd.time < move->time)
645 sv_readmoves[sv_numreadmoves-1].buttons |= move->buttons;
647 sv_readmoves[sv_numreadmoves-1].impulse = move->impulse;
650 // now copy the new move
651 host_client->cmd = sv_readmoves[sv_numreadmoves-1];
652 host_client->movesequence = 0;
653 // make sure that normal physics takes over immediately
654 host_client->clmovement_skipphysicsframes = 0;
657 // calculate average ping time
658 host_client->ping = host_client->cmd.receivetime - host_client->cmd.time;
659 #ifdef NUM_PING_TIMES
660 host_client->ping_times[host_client->num_pings % NUM_PING_TIMES] = host_client->cmd.receivetime - host_client->cmd.time;
661 host_client->num_pings++;
662 for (i=0, total = 0;i < NUM_PING_TIMES;i++)
663 total += host_client->ping_times[i];
664 host_client->ping = total / NUM_PING_TIMES;
668 void SV_ApplyClientMove (void)
671 usercmd_t *move = &host_client->cmd;
673 if (!move->receivetime)
676 // note: a move can be applied multiple times if the client packets are
677 // not coming as often as the physics is executed, and the move must be
678 // applied before running qc each time because the id1 qc had a bug where
679 // it clears self.button2 in PlayerJump, causing pogostick behavior if
680 // moves are not applied every time before calling qc
681 move->applied = true;
683 // set the edict fields
684 host_client->edict->fields.server->button0 = move->buttons & 1;
685 host_client->edict->fields.server->button2 = (move->buttons & 2)>>1;
687 host_client->edict->fields.server->impulse = move->impulse;
688 // only send the impulse to qc once
690 VectorCopy(move->viewangles, host_client->edict->fields.server->v_angle);
691 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button3))) val->_float = ((move->buttons >> 2) & 1);
692 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button4))) val->_float = ((move->buttons >> 3) & 1);
693 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button5))) val->_float = ((move->buttons >> 4) & 1);
694 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button6))) val->_float = ((move->buttons >> 5) & 1);
695 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button7))) val->_float = ((move->buttons >> 6) & 1);
696 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button8))) val->_float = ((move->buttons >> 7) & 1);
697 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button9))) val->_float = ((move->buttons >> 11) & 1);
698 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button10))) val->_float = ((move->buttons >> 12) & 1);
699 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button11))) val->_float = ((move->buttons >> 13) & 1);
700 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button12))) val->_float = ((move->buttons >> 14) & 1);
701 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button13))) val->_float = ((move->buttons >> 15) & 1);
702 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button14))) val->_float = ((move->buttons >> 16) & 1);
703 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button15))) val->_float = ((move->buttons >> 17) & 1);
704 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button16))) val->_float = ((move->buttons >> 18) & 1);
705 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.buttonuse))) val->_float = ((move->buttons >> 8) & 1);
706 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.buttonchat))) val->_float = ((move->buttons >> 9) & 1);
707 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.cursor_active))) val->_float = ((move->buttons >> 10) & 1);
708 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.movement))) VectorSet(val->vector, move->forwardmove, move->sidemove, move->upmove);
709 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.cursor_screen))) VectorCopy(move->cursor_screen, val->vector);
710 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.cursor_trace_start))) VectorCopy(move->cursor_start, val->vector);
711 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.cursor_trace_endpos))) VectorCopy(move->cursor_impact, val->vector);
712 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.cursor_trace_ent))) val->edict = PRVM_EDICT_TO_PROG(PRVM_EDICT_NUM(move->cursor_entitynumber));
713 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.ping))) val->_float = host_client->ping * 1000.0;
716 void SV_FrameLost(int framenum)
718 if (host_client->entitydatabase5)
719 EntityFrame5_LostFrame(host_client->entitydatabase5, framenum);
722 void SV_FrameAck(int framenum)
724 if (host_client->entitydatabase)
725 EntityFrame_AckFrame(host_client->entitydatabase, framenum);
726 else if (host_client->entitydatabase4)
727 EntityFrame4_AckFrame(host_client->entitydatabase4, framenum, true);
728 else if (host_client->entitydatabase5)
729 EntityFrame5_AckFrame(host_client->entitydatabase5, framenum);
737 extern void SV_SendServerinfo(client_t *client);
738 extern sizebuf_t vm_tempstringsbuf;
739 void SV_ReadClientMessage(void)
744 //MSG_BeginReading ();
749 if (!host_client->active)
751 // a command caused an error
752 SV_DropClient (false);
758 Con_Print("SV_ReadClientMessage: badread\n");
759 SV_DropClient (false);
763 cmd = MSG_ReadByte ();
767 // apply the moves that were read this frame
768 SV_ExecuteClientMoves();
775 Con_Printf("SV_ReadClientMessage: unknown command char %i\n", cmd);
776 SV_DropClient (false);
783 s = MSG_ReadString ();
784 if (strncasecmp(s, "spawn", 5) == 0
785 || strncasecmp(s, "begin", 5) == 0
786 || strncasecmp(s, "prespawn", 8) == 0)
787 Cmd_ExecuteString (s, src_client);
788 else if (prog->funcoffsets.SV_ParseClientCommand)
790 int restorevm_tempstringsbuf_cursize;
791 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
792 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(s);
793 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
794 PRVM_ExecuteProgram (prog->funcoffsets.SV_ParseClientCommand, "QC function SV_ParseClientCommand is missing");
795 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
798 Cmd_ExecuteString (s, src_client);
802 SV_DropClient (false); // client wants to disconnect
809 case clc_ackdownloaddata:
810 start = MSG_ReadLong();
811 num = MSG_ReadShort();
812 if (host_client->download_file && host_client->download_started)
814 if (host_client->download_expectedposition == start)
816 int size = (int)FS_FileSize(host_client->download_file);
817 // a data block was successfully received by the client,
818 // update the expected position on the next data block
819 host_client->download_expectedposition = start + num;
820 // if this was the last data block of the file, it's done
821 if (host_client->download_expectedposition >= FS_FileSize(host_client->download_file))
823 // tell the client that the download finished
824 // we need to calculate the crc now
826 // note: at this point the OS probably has the file
827 // entirely in memory, so this is a faster operation
828 // now than it was when the download started.
830 // it is also preferable to do this at the end of the
831 // download rather than the start because it reduces
832 // potential for Denial Of Service attacks against the
836 FS_Seek(host_client->download_file, 0, SEEK_SET);
837 temp = Mem_Alloc(tempmempool, size);
838 FS_Read(host_client->download_file, temp, size);
839 crc = CRC_Block(temp, size);
841 // calculated crc, send the file info to the client
842 // (so that it can verify the data)
843 Host_ClientCommands(va("\ncl_downloadfinished %i %i %s\n", size, crc, host_client->download_name));
844 Con_DPrintf("Download of %s by %s has finished\n", host_client->download_name, host_client->name);
845 FS_Close(host_client->download_file);
846 host_client->download_file = NULL;
847 host_client->download_name[0] = 0;
848 host_client->download_expectedposition = 0;
849 host_client->download_started = false;
854 // a data block was lost, reset to the expected position
855 // and resume sending from there
856 FS_Seek(host_client->download_file, host_client->download_expectedposition, SEEK_SET);
862 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
863 num = MSG_ReadLong();
864 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
865 if (developer_networkentities.integer >= 10)
866 Con_Printf("recv clc_ackframe %i\n", num);
867 // if the client hasn't progressed through signons yet,
868 // ignore any clc_ackframes we get (they're probably from the
870 if (host_client->spawned && host_client->latestframenum < num)
873 for (i = host_client->latestframenum + 1;i < num;i++)
876 host_client->latestframenum = num;