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
27 extern cvar_t sv_autodemo_perclient;
35 void SV_SetIdealPitch (void)
37 float angleval, sinval, cosval, step, dir;
44 if (!((int)host_client->edict->fields.server->flags & FL_ONGROUND))
47 angleval = host_client->edict->fields.server->angles[YAW] * M_PI*2 / 360;
48 sinval = sin(angleval);
49 cosval = cos(angleval);
51 for (i=0 ; i<MAX_FORWARD ; i++)
53 top[0] = host_client->edict->fields.server->origin[0] + cosval*(i+3)*12;
54 top[1] = host_client->edict->fields.server->origin[1] + sinval*(i+3)*12;
55 top[2] = host_client->edict->fields.server->origin[2] + host_client->edict->fields.server->view_ofs[2];
59 bottom[2] = top[2] - 160;
61 tr = SV_TraceLine(top, bottom, MOVE_NOMONSTERS, host_client->edict, SUPERCONTENTS_SOLID);
62 // if looking at a wall, leave ideal the way is was
70 z[i] = top[2] + tr.fraction*(bottom[2]-top[2]);
78 if (step > -ON_EPSILON && step < ON_EPSILON)
82 if (dir && ( step-dir > ON_EPSILON || step-dir < -ON_EPSILON ) )
91 host_client->edict->fields.server->idealpitch = 0;
97 host_client->edict->fields.server->idealpitch = -dir * sv_idealpitchscale.value;
100 static vec3_t wishdir, forward, right, up;
101 static float wishspeed;
103 static qboolean onground;
111 void SV_UserFriction (void)
113 float speed, newspeed, control, friction;
117 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]);
121 // if the leading edge is over a dropoff, increase friction
122 start[0] = stop[0] = host_client->edict->fields.server->origin[0] + host_client->edict->fields.server->velocity[0]/speed*16;
123 start[1] = stop[1] = host_client->edict->fields.server->origin[1] + host_client->edict->fields.server->velocity[1]/speed*16;
124 start[2] = host_client->edict->fields.server->origin[2] + host_client->edict->fields.server->mins[2];
125 stop[2] = start[2] - 34;
127 trace = SV_TraceLine(start, stop, MOVE_NOMONSTERS, host_client->edict, SV_GenericHitSuperContentsMask(host_client->edict));
129 if (trace.fraction == 1.0)
130 friction = sv_friction.value*sv_edgefriction.value;
132 friction = sv_friction.value;
135 control = speed < sv_stopspeed.value ? sv_stopspeed.value : speed;
136 newspeed = speed - sv.frametime*control*friction;
143 VectorScale(host_client->edict->fields.server->velocity, newspeed, host_client->edict->fields.server->velocity);
151 void SV_Accelerate (void)
154 float addspeed, accelspeed, currentspeed;
156 currentspeed = DotProduct (host_client->edict->fields.server->velocity, wishdir);
157 addspeed = wishspeed - currentspeed;
160 accelspeed = sv_accelerate.value*sv.frametime*wishspeed;
161 if (accelspeed > addspeed)
162 accelspeed = addspeed;
164 for (i=0 ; i<3 ; i++)
165 host_client->edict->fields.server->velocity[i] += accelspeed*wishdir[i];
168 extern cvar_t sv_gameplayfix_q2airaccelerate;
169 void SV_AirAccelerate (vec3_t wishveloc)
172 float addspeed, wishspd, accelspeed, currentspeed;
174 wishspd = VectorNormalizeLength (wishveloc);
175 if (wishspd > sv_maxairspeed.value)
176 wishspd = sv_maxairspeed.value;
177 currentspeed = DotProduct (host_client->edict->fields.server->velocity, wishveloc);
178 addspeed = wishspd - currentspeed;
181 accelspeed = (sv_airaccelerate.value < 0 ? sv_accelerate.value : sv_airaccelerate.value)*(sv_gameplayfix_q2airaccelerate.integer ? wishspd : wishspeed) * sv.frametime;
182 if (accelspeed > addspeed)
183 accelspeed = addspeed;
185 for (i=0 ; i<3 ; i++)
186 host_client->edict->fields.server->velocity[i] += accelspeed*wishveloc[i];
190 void DropPunchAngle (void)
195 len = VectorNormalizeLength (host_client->edict->fields.server->punchangle);
197 len -= 10*sv.frametime;
200 VectorScale (host_client->edict->fields.server->punchangle, len, host_client->edict->fields.server->punchangle);
202 VectorCopy(PRVM_serveredictvector(host_client->edict, punchvector), v);
203 len = VectorNormalizeLength(v);
206 len -= 20*sv.frametime;
209 VectorScale(v, len, v);
211 VectorCopy(v, PRVM_serveredictvector(host_client->edict, punchvector));
219 void SV_FreeMove (void)
224 AngleVectors (host_client->edict->fields.server->v_angle, forward, right, up);
226 for (i = 0; i < 3; i++)
227 host_client->edict->fields.server->velocity[i] = forward[i] * cmd.forwardmove + right[i] * cmd.sidemove;
229 host_client->edict->fields.server->velocity[2] += cmd.upmove;
231 wishspeed = VectorLength(host_client->edict->fields.server->velocity);
232 if (wishspeed > sv_maxspeed.value)
233 VectorScale(host_client->edict->fields.server->velocity, sv_maxspeed.value / wishspeed, host_client->edict->fields.server->velocity);
242 void SV_WaterMove (void)
246 float speed, newspeed, wishspeed, addspeed, accelspeed, temp;
249 AngleVectors (host_client->edict->fields.server->v_angle, forward, right, up);
251 for (i=0 ; i<3 ; i++)
252 wishvel[i] = forward[i]*cmd.forwardmove + right[i]*cmd.sidemove;
254 if (!cmd.forwardmove && !cmd.sidemove && !cmd.upmove)
255 wishvel[2] -= 60; // drift towards bottom
257 wishvel[2] += cmd.upmove;
259 wishspeed = VectorLength(wishvel);
260 if (wishspeed > sv_maxspeed.value)
262 temp = sv_maxspeed.value/wishspeed;
263 VectorScale (wishvel, temp, wishvel);
264 wishspeed = sv_maxspeed.value;
269 speed = VectorLength(host_client->edict->fields.server->velocity);
272 newspeed = speed - sv.frametime * speed * (sv_waterfriction.value < 0 ? sv_friction.value : sv_waterfriction.value);
275 temp = newspeed/speed;
276 VectorScale(host_client->edict->fields.server->velocity, temp, host_client->edict->fields.server->velocity);
281 // water acceleration
285 addspeed = wishspeed - newspeed;
289 VectorNormalize (wishvel);
290 accelspeed = (sv_wateraccelerate.value < 0 ? sv_accelerate.value : sv_wateraccelerate.value) * wishspeed * sv.frametime;
291 if (accelspeed > addspeed)
292 accelspeed = addspeed;
294 for (i=0 ; i<3 ; i++)
295 host_client->edict->fields.server->velocity[i] += accelspeed * wishvel[i];
298 void SV_WaterJump (void)
300 if (sv.time > host_client->edict->fields.server->teleport_time || !host_client->edict->fields.server->waterlevel)
302 host_client->edict->fields.server->flags = (int)host_client->edict->fields.server->flags & ~FL_WATERJUMP;
303 host_client->edict->fields.server->teleport_time = 0;
305 host_client->edict->fields.server->velocity[0] = host_client->edict->fields.server->movedir[0];
306 host_client->edict->fields.server->velocity[1] = host_client->edict->fields.server->movedir[1];
316 void SV_AirMove (void)
320 float fmove, smove, temp;
322 // LordHavoc: correct quake movement speed bug when looking up/down
323 wishvel[0] = wishvel[2] = 0;
324 wishvel[1] = host_client->edict->fields.server->angles[1];
325 AngleVectors (wishvel, forward, right, up);
327 fmove = cmd.forwardmove;
328 smove = cmd.sidemove;
330 // hack to not let you back into teleporter
331 if (sv.time < host_client->edict->fields.server->teleport_time && fmove < 0)
334 for (i=0 ; i<3 ; i++)
335 wishvel[i] = forward[i]*fmove + right[i]*smove;
337 if ((int)host_client->edict->fields.server->movetype != MOVETYPE_WALK)
338 wishvel[2] += cmd.upmove;
340 VectorCopy (wishvel, wishdir);
341 wishspeed = VectorNormalizeLength(wishdir);
342 if (wishspeed > sv_maxspeed.value)
344 temp = sv_maxspeed.value/wishspeed;
345 VectorScale (wishvel, temp, wishvel);
346 wishspeed = sv_maxspeed.value;
349 if (host_client->edict->fields.server->movetype == MOVETYPE_NOCLIP)
352 VectorCopy (wishvel, host_client->edict->fields.server->velocity);
361 // not on ground, so little effect on velocity
362 SV_AirAccelerate (wishvel);
370 the move fields specify an intended velocity in pix/sec
371 the angle fields specify an exact angular motion in degrees
374 void SV_ClientThink (void)
378 //Con_Printf("clientthink for %ims\n", (int) (sv.frametime * 1000));
380 SV_ApplyClientMove();
381 // make sure the velocity is sane (not a NaN)
382 SV_CheckVelocity(host_client->edict);
384 // LordHavoc: QuakeC replacement for SV_ClientThink (player movement)
385 if (prog->funcoffsets.SV_PlayerPhysics && sv_playerphysicsqc.integer)
387 prog->globals.server->time = sv.time;
388 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
389 PRVM_ExecuteProgram (prog->funcoffsets.SV_PlayerPhysics, "QC function SV_PlayerPhysics is missing");
390 SV_CheckVelocity(host_client->edict);
394 if (host_client->edict->fields.server->movetype == MOVETYPE_NONE)
397 onground = ((int)host_client->edict->fields.server->flags & FL_ONGROUND) != 0;
401 // if dead, behave differently
402 if (host_client->edict->fields.server->health <= 0)
405 cmd = host_client->cmd;
408 // show 1/3 the pitch angle and all the roll angle
409 VectorAdd (host_client->edict->fields.server->v_angle, host_client->edict->fields.server->punchangle, v_angle);
410 host_client->edict->fields.server->angles[ROLL] = V_CalcRoll (host_client->edict->fields.server->angles, host_client->edict->fields.server->velocity)*4;
411 if (!host_client->edict->fields.server->fixangle)
413 host_client->edict->fields.server->angles[PITCH] = -v_angle[PITCH]/3;
414 host_client->edict->fields.server->angles[YAW] = v_angle[YAW];
417 if ( (int)host_client->edict->fields.server->flags & FL_WATERJUMP )
420 SV_CheckVelocity(host_client->edict);
425 // Player is (somehow) outside of the map, or flying, or noclipping
426 if (host_client->edict->fields.server->movetype != MOVETYPE_NOCLIP && (host_client->edict->fields.server->movetype == MOVETYPE_FLY || SV_TestEntityPosition (host_client->edict)))
427 //if (host_client->edict->fields.server->movetype == MOVETYPE_NOCLIP || host_client->edict->fields.server->movetype == MOVETYPE_FLY || SV_TestEntityPosition (host_client->edict))
435 if ((host_client->edict->fields.server->waterlevel >= 2) && (host_client->edict->fields.server->movetype != MOVETYPE_NOCLIP))
438 SV_CheckVelocity(host_client->edict);
443 SV_CheckVelocity(host_client->edict);
451 int sv_numreadmoves = 0;
452 usercmd_t sv_readmoves[CL_MAX_USERCMDS];
453 void SV_ReadClientMove (void)
457 usercmd_t *move = &newmove;
459 memset(move, 0, sizeof(*move));
461 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
464 if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_NEHAHRABJP && sv.protocol != PROTOCOL_NEHAHRABJP2 && sv.protocol != PROTOCOL_NEHAHRABJP3 && sv.protocol != PROTOCOL_DARKPLACES1 && sv.protocol != PROTOCOL_DARKPLACES2 && sv.protocol != PROTOCOL_DARKPLACES3 && sv.protocol != PROTOCOL_DARKPLACES4 && sv.protocol != PROTOCOL_DARKPLACES5 && sv.protocol != PROTOCOL_DARKPLACES6)
465 move->sequence = MSG_ReadLong ();
466 move->time = move->clienttime = MSG_ReadFloat ();
467 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
468 move->receivetime = (float)sv.time;
471 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);
473 // limit reported time to current time
474 // (incase the client is trying to cheat)
475 move->time = min(move->time, move->receivetime + sv.frametime);
477 // read current angles
478 for (i = 0;i < 3;i++)
480 if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
481 move->viewangles[i] = MSG_ReadAngle8i();
482 else if (sv.protocol == PROTOCOL_DARKPLACES1)
483 move->viewangles[i] = MSG_ReadAngle16i();
484 else if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
485 move->viewangles[i] = MSG_ReadAngle32f();
487 move->viewangles[i] = MSG_ReadAngle16i();
489 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
492 move->forwardmove = MSG_ReadCoord16i ();
493 move->sidemove = MSG_ReadCoord16i ();
494 move->upmove = MSG_ReadCoord16i ();
495 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
498 // be sure to bitwise OR them into the move->buttons because we want to
499 // accumulate button presses from multiple packets per actual move
500 if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
501 move->buttons = MSG_ReadByte ();
503 move->buttons = MSG_ReadLong ();
504 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
507 move->impulse = MSG_ReadByte ();
508 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
510 // PRYDON_CLIENTCURSOR
511 if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_NEHAHRABJP && sv.protocol != PROTOCOL_NEHAHRABJP2 && sv.protocol != PROTOCOL_NEHAHRABJP3 && sv.protocol != PROTOCOL_DARKPLACES1 && sv.protocol != PROTOCOL_DARKPLACES2 && sv.protocol != PROTOCOL_DARKPLACES3 && sv.protocol != PROTOCOL_DARKPLACES4 && sv.protocol != PROTOCOL_DARKPLACES5)
514 move->cursor_screen[0] = MSG_ReadShort() * (1.0f / 32767.0f);
515 move->cursor_screen[1] = MSG_ReadShort() * (1.0f / 32767.0f);
516 move->cursor_start[0] = MSG_ReadFloat();
517 move->cursor_start[1] = MSG_ReadFloat();
518 move->cursor_start[2] = MSG_ReadFloat();
519 move->cursor_impact[0] = MSG_ReadFloat();
520 move->cursor_impact[1] = MSG_ReadFloat();
521 move->cursor_impact[2] = MSG_ReadFloat();
522 move->cursor_entitynumber = (unsigned short)MSG_ReadShort();
523 if (move->cursor_entitynumber >= prog->max_edicts)
525 Con_DPrintf("SV_ReadClientMessage: client send bad cursor_entitynumber\n");
526 move->cursor_entitynumber = 0;
528 // as requested by FrikaC, cursor_trace_ent is reset to world if the
529 // entity is free at time of receipt
530 if (PRVM_EDICT_NUM(move->cursor_entitynumber)->priv.server->free)
531 move->cursor_entitynumber = 0;
532 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
535 // if the previous move has not been applied yet, we need to accumulate
536 // the impulse/buttons from it
537 if (!host_client->cmd.applied)
540 move->impulse = host_client->cmd.impulse;
541 move->buttons |= host_client->cmd.buttons;
544 // now store this move for later execution
545 // (we have to buffer the moves because of old ones being repeated)
546 if (sv_numreadmoves < CL_MAX_USERCMDS)
547 sv_readmoves[sv_numreadmoves++] = *move;
549 // movement packet loss tracking
552 if(move->sequence > host_client->movement_highestsequence_seen)
554 if(host_client->movement_highestsequence_seen)
556 // mark moves in between as lost
557 if(move->sequence - host_client->movement_highestsequence_seen - 1 < NETGRAPH_PACKETS)
558 for(i = host_client->movement_highestsequence_seen + 1; i < move->sequence; ++i)
559 host_client->movement_count[i % NETGRAPH_PACKETS] = -1;
561 memset(host_client->movement_count, -1, sizeof(host_client->movement_count));
563 // mark THIS move as seen for the first time
564 host_client->movement_count[move->sequence % NETGRAPH_PACKETS] = 1;
565 // update highest sequence seen
566 host_client->movement_highestsequence_seen = move->sequence;
569 if(host_client->movement_count[move->sequence % NETGRAPH_PACKETS] >= 0)
570 ++host_client->movement_count[move->sequence % NETGRAPH_PACKETS];
574 host_client->movement_highestsequence_seen = 0;
575 memset(host_client->movement_count, 0, sizeof(host_client->movement_count));
579 void SV_ExecuteClientMoves(void)
584 double oldframetime2;
585 #ifdef NUM_PING_TIMES
588 if (sv_numreadmoves < 1)
590 // only start accepting input once the player is spawned
591 if (!host_client->spawned)
594 Con_Printf("SV_ExecuteClientMoves: read %i moves at sv.time %f\n", sv_numreadmoves, (float)sv.time);
596 // disable clientside movement prediction in some cases
597 if (ceil(max(sv_readmoves[sv_numreadmoves-1].receivetime - sv_readmoves[sv_numreadmoves-1].time, 0) * 1000.0) < sv_clmovement_minping.integer)
598 host_client->clmovement_disabletimeout = realtime + sv_clmovement_minping_disabletime.value / 1000.0;
599 // several conditions govern whether clientside movement prediction is allowed
600 if (sv_readmoves[sv_numreadmoves-1].sequence && sv_clmovement_enable.integer && sv_clmovement_inputtimeout.value > 0 && host_client->clmovement_disabletimeout <= realtime && host_client->edict->fields.server->movetype == MOVETYPE_WALK && (!PRVM_serveredictfloat(host_client->edict, disableclientprediction)))
602 // process the moves in order and ignore old ones
603 // but always trust the latest move
604 // (this deals with bogus initial move sequences after level change,
605 // where the client will eventually catch up with the level change
606 // and reset its move sequence)
607 for (moveindex = 0;moveindex < sv_numreadmoves;moveindex++)
609 usercmd_t *move = sv_readmoves + moveindex;
610 if (host_client->movesequence < move->sequence || moveindex == sv_numreadmoves - 1)
613 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);
615 // this is a new move
616 move->time = bound(sv.time - 1, move->time, sv.time); // prevent slowhack/speedhack combos
617 move->time = max(move->time, host_client->cmd.time); // prevent backstepping of time
618 moveframetime = bound(0, move->time - host_client->cmd.time, min(0.1, sv_clmovement_inputtimeout.value));
620 // discard (treat like lost) moves with too low distance from
621 // the previous one to prevent hacks using float inaccuracy
622 // clients will see this as packet loss in the netgraph
623 // this should also apply if a move cannot get
624 // executed because it came too late and
625 // already was performed serverside
626 if(moveframetime < 0.0005)
628 // count the move as LOST if we don't
629 // execute it but it has higher
631 if(host_client->movesequence)
632 if(move->sequence > host_client->movesequence)
633 host_client->movement_count[(move->sequence) % NETGRAPH_PACKETS] = -1;
637 //Con_Printf("movesequence = %i (%i lost), moveframetime = %f\n", move->sequence, move->sequence ? move->sequence - host_client->movesequence - 1 : 0, moveframetime);
638 host_client->cmd = *move;
639 host_client->movesequence = move->sequence;
641 // if using prediction, we need to perform moves when packets are
642 // received, even if multiple occur in one frame
643 // (they can't go beyond the current time so there is no cheat issue
644 // with this approach, and if they don't send input for a while they
645 // start moving anyway, so the longest 'lagaport' possible is
646 // determined by the sv_clmovement_inputtimeout cvar)
647 if (moveframetime <= 0)
649 oldframetime = prog->globals.server->frametime;
650 oldframetime2 = sv.frametime;
651 // update ping time for qc to see while executing this move
652 host_client->ping = host_client->cmd.receivetime - host_client->cmd.time;
653 // the server and qc frametime values must be changed temporarily
654 prog->globals.server->frametime = sv.frametime = moveframetime;
655 // if move is more than 50ms, split it into two moves (this matches QWSV behavior and the client prediction)
656 if (sv.frametime > 0.05)
658 prog->globals.server->frametime = sv.frametime = moveframetime * 0.5f;
659 SV_Physics_ClientMove();
661 SV_Physics_ClientMove();
662 sv.frametime = oldframetime2;
663 prog->globals.server->frametime = oldframetime;
664 host_client->clmovement_inputtimeout = sv_clmovement_inputtimeout.value;
670 // try to gather button bits from old moves, but only if their time is
671 // advancing (ones with the same timestamp can't be trusted)
672 for (moveindex = 0;moveindex < sv_numreadmoves-1;moveindex++)
674 usercmd_t *move = sv_readmoves + moveindex;
675 if (host_client->cmd.time < move->time)
677 sv_readmoves[sv_numreadmoves-1].buttons |= move->buttons;
679 sv_readmoves[sv_numreadmoves-1].impulse = move->impulse;
682 // now copy the new move
683 host_client->cmd = sv_readmoves[sv_numreadmoves-1];
684 host_client->cmd.time = max(host_client->cmd.time, sv.time);
685 // physics will run up to sv.time, so allow no predicted moves
686 // before that otherwise, there is a speedhack by turning
687 // prediction on and off repeatedly on client side because the
688 // engine would run BOTH client and server physics for the same
690 host_client->movesequence = 0;
691 // make sure that normal physics takes over immediately
692 host_client->clmovement_inputtimeout = 0;
695 // calculate average ping time
696 host_client->ping = host_client->cmd.receivetime - host_client->cmd.clienttime;
697 #ifdef NUM_PING_TIMES
698 host_client->ping_times[host_client->num_pings % NUM_PING_TIMES] = host_client->cmd.receivetime - host_client->cmd.clienttime;
699 host_client->num_pings++;
700 for (i=0, total = 0;i < NUM_PING_TIMES;i++)
701 total += host_client->ping_times[i];
702 host_client->ping = total / NUM_PING_TIMES;
706 void SV_ApplyClientMove (void)
708 usercmd_t *move = &host_client->cmd;
709 int j, movementloss, packetloss;
711 if (!move->receivetime)
714 // note: a move can be applied multiple times if the client packets are
715 // not coming as often as the physics is executed, and the move must be
716 // applied before running qc each time because the id1 qc had a bug where
717 // it clears self.button2 in PlayerJump, causing pogostick behavior if
718 // moves are not applied every time before calling qc
719 move->applied = true;
721 // set the edict fields
722 host_client->edict->fields.server->button0 = move->buttons & 1;
723 host_client->edict->fields.server->button2 = (move->buttons & 2)>>1;
725 host_client->edict->fields.server->impulse = move->impulse;
726 // only send the impulse to qc once
729 movementloss = packetloss = 0;
730 if(host_client->netconnection)
732 for (j = 0;j < NETGRAPH_PACKETS;j++)
733 if (host_client->netconnection->incoming_netgraph[j].unreliablebytes == NETGRAPH_LOSTPACKET)
735 for (j = 0;j < NETGRAPH_PACKETS;j++)
736 if (host_client->movement_count[j] < 0)
740 VectorCopy(move->viewangles, host_client->edict->fields.server->v_angle);
741 PRVM_serveredictfloat(host_client->edict, button3) = ((move->buttons >> 2) & 1);
742 PRVM_serveredictfloat(host_client->edict, button4) = ((move->buttons >> 3) & 1);
743 PRVM_serveredictfloat(host_client->edict, button5) = ((move->buttons >> 4) & 1);
744 PRVM_serveredictfloat(host_client->edict, button6) = ((move->buttons >> 5) & 1);
745 PRVM_serveredictfloat(host_client->edict, button7) = ((move->buttons >> 6) & 1);
746 PRVM_serveredictfloat(host_client->edict, button8) = ((move->buttons >> 7) & 1);
747 PRVM_serveredictfloat(host_client->edict, button9) = ((move->buttons >> 11) & 1);
748 PRVM_serveredictfloat(host_client->edict, button10) = ((move->buttons >> 12) & 1);
749 PRVM_serveredictfloat(host_client->edict, button11) = ((move->buttons >> 13) & 1);
750 PRVM_serveredictfloat(host_client->edict, button12) = ((move->buttons >> 14) & 1);
751 PRVM_serveredictfloat(host_client->edict, button13) = ((move->buttons >> 15) & 1);
752 PRVM_serveredictfloat(host_client->edict, button14) = ((move->buttons >> 16) & 1);
753 PRVM_serveredictfloat(host_client->edict, button15) = ((move->buttons >> 17) & 1);
754 PRVM_serveredictfloat(host_client->edict, button16) = ((move->buttons >> 18) & 1);
755 PRVM_serveredictfloat(host_client->edict, buttonuse) = ((move->buttons >> 8) & 1);
756 PRVM_serveredictfloat(host_client->edict, buttonchat) = ((move->buttons >> 9) & 1);
757 PRVM_serveredictfloat(host_client->edict, cursor_active) = ((move->buttons >> 10) & 1);
758 VectorSet(PRVM_serveredictvector(host_client->edict, movement), move->forwardmove, move->sidemove, move->upmove);
759 VectorCopy(move->cursor_screen, PRVM_serveredictvector(host_client->edict, cursor_screen));
760 VectorCopy(move->cursor_start, PRVM_serveredictvector(host_client->edict, cursor_trace_start));
761 VectorCopy(move->cursor_impact, PRVM_serveredictvector(host_client->edict, cursor_trace_endpos));
762 PRVM_serveredictedict(host_client->edict, cursor_trace_ent) = PRVM_EDICT_TO_PROG(PRVM_EDICT_NUM(move->cursor_entitynumber));
763 PRVM_serveredictfloat(host_client->edict, ping) = host_client->ping * 1000.0;
764 PRVM_serveredictfloat(host_client->edict, ping_packetloss) = packetloss / (float) NETGRAPH_PACKETS;
765 PRVM_serveredictfloat(host_client->edict, ping_movementloss) = movementloss / (float) NETGRAPH_PACKETS;
768 void SV_FrameLost(int framenum)
770 if (host_client->entitydatabase5)
772 EntityFrame5_LostFrame(host_client->entitydatabase5, framenum);
773 EntityFrameCSQC_LostFrame(host_client, framenum);
777 void SV_FrameAck(int framenum)
779 if (host_client->entitydatabase)
780 EntityFrame_AckFrame(host_client->entitydatabase, framenum);
781 else if (host_client->entitydatabase4)
782 EntityFrame4_AckFrame(host_client->entitydatabase4, framenum, true);
783 else if (host_client->entitydatabase5)
784 EntityFrame5_AckFrame(host_client->entitydatabase5, framenum);
792 extern void SV_SendServerinfo(client_t *client);
793 extern sizebuf_t vm_tempstringsbuf;
794 void SV_ReadClientMessage(void)
799 if(sv_autodemo_perclient.integer >= 2)
800 SV_WriteDemoMessage(host_client, &(host_client->netconnection->message), true);
802 //MSG_BeginReading ();
807 if (!host_client->active)
809 // a command caused an error
810 SV_DropClient (false);
816 Con_Print("SV_ReadClientMessage: badread\n");
817 SV_DropClient (false);
821 cmd = MSG_ReadByte ();
825 // apply the moves that were read this frame
826 SV_ExecuteClientMoves();
833 Con_Printf("SV_ReadClientMessage: unknown command char %i (at offset 0x%x)\n", cmd, msg_readcount);
834 if (developer_networking.integer)
835 Com_HexDumpToConsole(net_message.data, net_message.cursize);
836 SV_DropClient (false);
843 // allow reliable messages now as the client is done with initial loading
844 if (host_client->sendsignon == 2)
845 host_client->sendsignon = 0;
846 s = MSG_ReadString ();
848 for(p = s; *p; ++p) switch(*p)
857 goto clc_stringcmd_invalid; // newline seen, THEN something else -> possible exploit
862 if (strncasecmp(s, "spawn", 5) == 0
863 || strncasecmp(s, "begin", 5) == 0
864 || strncasecmp(s, "prespawn", 8) == 0)
865 Cmd_ExecuteString (s, src_client);
866 else if (prog->funcoffsets.SV_ParseClientCommand)
868 int restorevm_tempstringsbuf_cursize;
869 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
870 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(s);
871 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
872 PRVM_ExecuteProgram (prog->funcoffsets.SV_ParseClientCommand, "QC function SV_ParseClientCommand is missing");
873 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
876 Cmd_ExecuteString (s, src_client);
879 clc_stringcmd_invalid:
880 Con_Printf("Received invalid stringcmd from %s\n", host_client->name);
881 if(developer.integer > 0)
882 Com_HexDumpToConsole((unsigned char *) s, strlen(s));
886 SV_DropClient (false); // client wants to disconnect
893 case clc_ackdownloaddata:
894 start = MSG_ReadLong();
895 num = MSG_ReadShort();
896 if (host_client->download_file && host_client->download_started)
898 if (host_client->download_expectedposition == start)
900 int size = (int)FS_FileSize(host_client->download_file);
901 // a data block was successfully received by the client,
902 // update the expected position on the next data block
903 host_client->download_expectedposition = start + num;
904 // if this was the last data block of the file, it's done
905 if (host_client->download_expectedposition >= FS_FileSize(host_client->download_file))
907 // tell the client that the download finished
908 // we need to calculate the crc now
910 // note: at this point the OS probably has the file
911 // entirely in memory, so this is a faster operation
912 // now than it was when the download started.
914 // it is also preferable to do this at the end of the
915 // download rather than the start because it reduces
916 // potential for Denial Of Service attacks against the
920 FS_Seek(host_client->download_file, 0, SEEK_SET);
921 temp = (unsigned char *) Mem_Alloc(tempmempool, size);
922 FS_Read(host_client->download_file, temp, size);
923 crc = CRC_Block(temp, size);
925 // calculated crc, send the file info to the client
926 // (so that it can verify the data)
927 Host_ClientCommands("\ncl_downloadfinished %i %i %s\n", size, crc, host_client->download_name);
928 Con_DPrintf("Download of %s by %s has finished\n", host_client->download_name, host_client->name);
929 FS_Close(host_client->download_file);
930 host_client->download_file = NULL;
931 host_client->download_name[0] = 0;
932 host_client->download_expectedposition = 0;
933 host_client->download_started = false;
938 // a data block was lost, reset to the expected position
939 // and resume sending from there
940 FS_Seek(host_client->download_file, host_client->download_expectedposition, SEEK_SET);
946 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
947 num = MSG_ReadLong();
948 if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
949 if (developer_networkentities.integer >= 10)
950 Con_Printf("recv clc_ackframe %i\n", num);
951 // if the client hasn't progressed through signons yet,
952 // ignore any clc_ackframes we get (they're probably from the
954 if (host_client->spawned && host_client->latestframenum < num)
957 for (i = host_client->latestframenum + 1;i < num;i++)
960 host_client->latestframenum = num;