--- /dev/null
+/*
+Copyright (C) 1996-1997 Id Software, Inc.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+*/
+// sv_user.c -- server code for moving users
+
+#include "quakedef.h"
+#include "sv_demo.h"
+#define DEBUGMOVES 0
+
+static usercmd_t cmd;
+extern cvar_t sv_autodemo_perclient;
+
+/*
+===============
+SV_SetIdealPitch
+===============
+*/
+#define MAX_FORWARD 6
+void SV_SetIdealPitch (void)
+{
+ float angleval, sinval, cosval, step, dir;
+ trace_t tr;
+ vec3_t top, bottom;
+ float z[MAX_FORWARD];
+ int i, j;
+ int steps;
+
+ if (!((int)PRVM_serveredictfloat(host_client->edict, flags) & FL_ONGROUND))
+ return;
+
+ angleval = PRVM_serveredictvector(host_client->edict, angles)[YAW] * M_PI*2 / 360;
+ sinval = sin(angleval);
+ cosval = cos(angleval);
+
+ for (i=0 ; i<MAX_FORWARD ; i++)
+ {
+ top[0] = PRVM_serveredictvector(host_client->edict, origin)[0] + cosval*(i+3)*12;
+ top[1] = PRVM_serveredictvector(host_client->edict, origin)[1] + sinval*(i+3)*12;
+ top[2] = PRVM_serveredictvector(host_client->edict, origin)[2] + PRVM_serveredictvector(host_client->edict, view_ofs)[2];
+
+ bottom[0] = top[0];
+ bottom[1] = top[1];
+ bottom[2] = top[2] - 160;
+
+ tr = SV_TraceLine(top, bottom, MOVE_NOMONSTERS, host_client->edict, SUPERCONTENTS_SOLID);
+ // if looking at a wall, leave ideal the way is was
+ if (tr.startsolid)
+ return;
+
+ // near a dropoff
+ if (tr.fraction == 1)
+ return;
+
+ z[i] = top[2] + tr.fraction*(bottom[2]-top[2]);
+ }
+
+ dir = 0;
+ steps = 0;
+ for (j=1 ; j<i ; j++)
+ {
+ step = z[j] - z[j-1];
+ if (step > -ON_EPSILON && step < ON_EPSILON)
+ continue;
+
+ // mixed changes
+ if (dir && ( step-dir > ON_EPSILON || step-dir < -ON_EPSILON ) )
+ return;
+
+ steps++;
+ dir = step;
+ }
+
+ if (!dir)
+ {
+ PRVM_serveredictfloat(host_client->edict, idealpitch) = 0;
+ return;
+ }
+
+ if (steps < 2)
+ return;
+ PRVM_serveredictfloat(host_client->edict, idealpitch) = -dir * sv_idealpitchscale.value;
+}
+
+static vec3_t wishdir, forward, right, up;
+static float wishspeed;
+
+static qboolean onground;
+
+/*
+==================
+SV_UserFriction
+
+==================
+*/
+void SV_UserFriction (void)
+{
+ float speed, newspeed, control, friction;
+ vec3_t start, stop;
+ trace_t trace;
+
+ speed = sqrt(PRVM_serveredictvector(host_client->edict, velocity)[0]*PRVM_serveredictvector(host_client->edict, velocity)[0]+PRVM_serveredictvector(host_client->edict, velocity)[1]*PRVM_serveredictvector(host_client->edict, velocity)[1]);
+ if (!speed)
+ return;
+
+ // if the leading edge is over a dropoff, increase friction
+ start[0] = stop[0] = PRVM_serveredictvector(host_client->edict, origin)[0] + PRVM_serveredictvector(host_client->edict, velocity)[0]/speed*16;
+ start[1] = stop[1] = PRVM_serveredictvector(host_client->edict, origin)[1] + PRVM_serveredictvector(host_client->edict, velocity)[1]/speed*16;
+ start[2] = PRVM_serveredictvector(host_client->edict, origin)[2] + PRVM_serveredictvector(host_client->edict, mins)[2];
+ stop[2] = start[2] - 34;
+
+ trace = SV_TraceLine(start, stop, MOVE_NOMONSTERS, host_client->edict, SV_GenericHitSuperContentsMask(host_client->edict));
+
+ if (trace.fraction == 1.0)
+ friction = sv_friction.value*sv_edgefriction.value;
+ else
+ friction = sv_friction.value;
+
+ // apply friction
+ control = speed < sv_stopspeed.value ? sv_stopspeed.value : speed;
+ newspeed = speed - sv.frametime*control*friction;
+
+ if (newspeed < 0)
+ newspeed = 0;
+ else
+ newspeed /= speed;
+
+ VectorScale(PRVM_serveredictvector(host_client->edict, velocity), newspeed, PRVM_serveredictvector(host_client->edict, velocity));
+}
+
+/*
+==============
+SV_Accelerate
+==============
+*/
+void SV_Accelerate (void)
+{
+ int i;
+ float addspeed, accelspeed, currentspeed;
+
+ currentspeed = DotProduct (PRVM_serveredictvector(host_client->edict, velocity), wishdir);
+ addspeed = wishspeed - currentspeed;
+ if (addspeed <= 0)
+ return;
+ accelspeed = sv_accelerate.value*sv.frametime*wishspeed;
+ if (accelspeed > addspeed)
+ accelspeed = addspeed;
+
+ for (i=0 ; i<3 ; i++)
+ PRVM_serveredictvector(host_client->edict, velocity)[i] += accelspeed*wishdir[i];
+}
+
+extern cvar_t sv_gameplayfix_q2airaccelerate;
+void SV_AirAccelerate (vec3_t wishveloc)
+{
+ int i;
+ float addspeed, wishspd, accelspeed, currentspeed;
+
+ wishspd = VectorNormalizeLength (wishveloc);
+ if (wishspd > sv_maxairspeed.value)
+ wishspd = sv_maxairspeed.value;
+ currentspeed = DotProduct (PRVM_serveredictvector(host_client->edict, velocity), wishveloc);
+ addspeed = wishspd - currentspeed;
+ if (addspeed <= 0)
+ return;
+ accelspeed = (sv_airaccelerate.value < 0 ? sv_accelerate.value : sv_airaccelerate.value)*(sv_gameplayfix_q2airaccelerate.integer ? wishspd : wishspeed) * sv.frametime;
+ if (accelspeed > addspeed)
+ accelspeed = addspeed;
+
+ for (i=0 ; i<3 ; i++)
+ PRVM_serveredictvector(host_client->edict, velocity)[i] += accelspeed*wishveloc[i];
+}
+
+
+void DropPunchAngle (void)
+{
+ float len;
+ vec3_t v;
+
+ len = VectorNormalizeLength (PRVM_serveredictvector(host_client->edict, punchangle));
+
+ len -= 10*sv.frametime;
+ if (len < 0)
+ len = 0;
+ VectorScale (PRVM_serveredictvector(host_client->edict, punchangle), len, PRVM_serveredictvector(host_client->edict, punchangle));
+
+ VectorCopy(PRVM_serveredictvector(host_client->edict, punchvector), v);
+ len = VectorNormalizeLength(v);
+ if (len > 0)
+ {
+ len -= 20*sv.frametime;
+ if (len < 0)
+ len = 0;
+ VectorScale(v, len, v);
+ }
+ VectorCopy(v, PRVM_serveredictvector(host_client->edict, punchvector));
+}
+
+/*
+===================
+SV_FreeMove
+===================
+*/
+void SV_FreeMove (void)
+{
+ int i;
+ float wishspeed;
+
+ AngleVectors (PRVM_serveredictvector(host_client->edict, v_angle), forward, right, up);
+
+ for (i = 0; i < 3; i++)
+ PRVM_serveredictvector(host_client->edict, velocity)[i] = forward[i] * cmd.forwardmove + right[i] * cmd.sidemove;
+
+ PRVM_serveredictvector(host_client->edict, velocity)[2] += cmd.upmove;
+
+ wishspeed = VectorLength(PRVM_serveredictvector(host_client->edict, velocity));
+ if (wishspeed > sv_maxspeed.value)
+ VectorScale(PRVM_serveredictvector(host_client->edict, velocity), sv_maxspeed.value / wishspeed, PRVM_serveredictvector(host_client->edict, velocity));
+}
+
+/*
+===================
+SV_WaterMove
+
+===================
+*/
+void SV_WaterMove (void)
+{
+ int i;
+ vec3_t wishvel;
+ float speed, newspeed, wishspeed, addspeed, accelspeed, temp;
+
+ // user intentions
+ AngleVectors (PRVM_serveredictvector(host_client->edict, v_angle), forward, right, up);
+
+ for (i=0 ; i<3 ; i++)
+ wishvel[i] = forward[i]*cmd.forwardmove + right[i]*cmd.sidemove;
+
+ if (!cmd.forwardmove && !cmd.sidemove && !cmd.upmove)
+ wishvel[2] -= 60; // drift towards bottom
+ else
+ wishvel[2] += cmd.upmove;
+
+ wishspeed = VectorLength(wishvel);
+ if (wishspeed > sv_maxspeed.value)
+ {
+ temp = sv_maxspeed.value/wishspeed;
+ VectorScale (wishvel, temp, wishvel);
+ wishspeed = sv_maxspeed.value;
+ }
+ wishspeed *= 0.7;
+
+ // water friction
+ speed = VectorLength(PRVM_serveredictvector(host_client->edict, velocity));
+ if (speed)
+ {
+ newspeed = speed - sv.frametime * speed * (sv_waterfriction.value < 0 ? sv_friction.value : sv_waterfriction.value);
+ if (newspeed < 0)
+ newspeed = 0;
+ temp = newspeed/speed;
+ VectorScale(PRVM_serveredictvector(host_client->edict, velocity), temp, PRVM_serveredictvector(host_client->edict, velocity));
+ }
+ else
+ newspeed = 0;
+
+ // water acceleration
+ if (!wishspeed)
+ return;
+
+ addspeed = wishspeed - newspeed;
+ if (addspeed <= 0)
+ return;
+
+ VectorNormalize (wishvel);
+ accelspeed = (sv_wateraccelerate.value < 0 ? sv_accelerate.value : sv_wateraccelerate.value) * wishspeed * sv.frametime;
+ if (accelspeed > addspeed)
+ accelspeed = addspeed;
+
+ for (i=0 ; i<3 ; i++)
+ PRVM_serveredictvector(host_client->edict, velocity)[i] += accelspeed * wishvel[i];
+}
+
+void SV_WaterJump (void)
+{
+ if (sv.time > PRVM_serveredictfloat(host_client->edict, teleport_time) || !PRVM_serveredictfloat(host_client->edict, waterlevel))
+ {
+ PRVM_serveredictfloat(host_client->edict, flags) = (int)PRVM_serveredictfloat(host_client->edict, flags) & ~FL_WATERJUMP;
+ PRVM_serveredictfloat(host_client->edict, teleport_time) = 0;
+ }
+ PRVM_serveredictvector(host_client->edict, velocity)[0] = PRVM_serveredictvector(host_client->edict, movedir)[0];
+ PRVM_serveredictvector(host_client->edict, velocity)[1] = PRVM_serveredictvector(host_client->edict, movedir)[1];
+}
+
+
+/*
+===================
+SV_AirMove
+
+===================
+*/
+void SV_AirMove (void)
+{
+ int i;
+ vec3_t wishvel;
+ float fmove, smove, temp;
+
+ // LordHavoc: correct quake movement speed bug when looking up/down
+ wishvel[0] = wishvel[2] = 0;
+ wishvel[1] = PRVM_serveredictvector(host_client->edict, angles)[1];
+ AngleVectors (wishvel, forward, right, up);
+
+ fmove = cmd.forwardmove;
+ smove = cmd.sidemove;
+
+// hack to not let you back into teleporter
+ if (sv.time < PRVM_serveredictfloat(host_client->edict, teleport_time) && fmove < 0)
+ fmove = 0;
+
+ for (i=0 ; i<3 ; i++)
+ wishvel[i] = forward[i]*fmove + right[i]*smove;
+
+ if ((int)PRVM_serveredictfloat(host_client->edict, movetype) != MOVETYPE_WALK)
+ wishvel[2] += cmd.upmove;
+
+ VectorCopy (wishvel, wishdir);
+ wishspeed = VectorNormalizeLength(wishdir);
+ if (wishspeed > sv_maxspeed.value)
+ {
+ temp = sv_maxspeed.value/wishspeed;
+ VectorScale (wishvel, temp, wishvel);
+ wishspeed = sv_maxspeed.value;
+ }
+
+ if (PRVM_serveredictfloat(host_client->edict, movetype) == MOVETYPE_NOCLIP)
+ {
+ // noclip
+ VectorCopy (wishvel, PRVM_serveredictvector(host_client->edict, velocity));
+ }
+ else if (onground)
+ {
+ SV_UserFriction ();
+ SV_Accelerate ();
+ }
+ else
+ {
+ // not on ground, so little effect on velocity
+ SV_AirAccelerate (wishvel);
+ }
+}
+
+/*
+===================
+SV_ClientThink
+
+the move fields specify an intended velocity in pix/sec
+the angle fields specify an exact angular motion in degrees
+===================
+*/
+void SV_ClientThink (void)
+{
+ vec3_t v_angle;
+
+ //Con_Printf("clientthink for %ims\n", (int) (sv.frametime * 1000));
+
+ SV_ApplyClientMove();
+ // make sure the velocity is sane (not a NaN)
+ SV_CheckVelocity(host_client->edict);
+
+ // LordHavoc: QuakeC replacement for SV_ClientThink (player movement)
+ if (PRVM_serverfunction(SV_PlayerPhysics) && sv_playerphysicsqc.integer)
+ {
+ PRVM_serverglobalfloat(time) = sv.time;
+ PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
+ PRVM_ExecuteProgram (PRVM_serverfunction(SV_PlayerPhysics), "QC function SV_PlayerPhysics is missing");
+ SV_CheckVelocity(host_client->edict);
+ return;
+ }
+
+ if (PRVM_serveredictfloat(host_client->edict, movetype) == MOVETYPE_NONE)
+ return;
+
+ onground = ((int)PRVM_serveredictfloat(host_client->edict, flags) & FL_ONGROUND) != 0;
+
+ DropPunchAngle ();
+
+ // if dead, behave differently
+ if (PRVM_serveredictfloat(host_client->edict, health) <= 0)
+ return;
+
+ cmd = host_client->cmd;
+
+ // angles
+ // show 1/3 the pitch angle and all the roll angle
+ VectorAdd (PRVM_serveredictvector(host_client->edict, v_angle), PRVM_serveredictvector(host_client->edict, punchangle), v_angle);
+ PRVM_serveredictvector(host_client->edict, angles)[ROLL] = V_CalcRoll (PRVM_serveredictvector(host_client->edict, angles), PRVM_serveredictvector(host_client->edict, velocity))*4;
+ if (!PRVM_serveredictfloat(host_client->edict, fixangle))
+ {
+ PRVM_serveredictvector(host_client->edict, angles)[PITCH] = -v_angle[PITCH]/3;
+ PRVM_serveredictvector(host_client->edict, angles)[YAW] = v_angle[YAW];
+ }
+
+ if ( (int)PRVM_serveredictfloat(host_client->edict, flags) & FL_WATERJUMP )
+ {
+ SV_WaterJump ();
+ SV_CheckVelocity(host_client->edict);
+ return;
+ }
+
+ /*
+ // Player is (somehow) outside of the map, or flying, or noclipping
+ if (PRVM_serveredictfloat(host_client->edict, movetype) != MOVETYPE_NOCLIP && (PRVM_serveredictfloat(host_client->edict, movetype) == MOVETYPE_FLY || SV_TestEntityPosition (host_client->edict)))
+ //if (PRVM_serveredictfloat(host_client->edict, movetype) == MOVETYPE_NOCLIP || PRVM_serveredictfloat(host_client->edict, movetype) == MOVETYPE_FLY || SV_TestEntityPosition (host_client->edict))
+ {
+ SV_FreeMove ();
+ return;
+ }
+ */
+
+ // walk
+ if ((PRVM_serveredictfloat(host_client->edict, waterlevel) >= 2) && (PRVM_serveredictfloat(host_client->edict, movetype) != MOVETYPE_NOCLIP))
+ {
+ SV_WaterMove ();
+ SV_CheckVelocity(host_client->edict);
+ return;
+ }
+
+ SV_AirMove ();
+ SV_CheckVelocity(host_client->edict);
+}
+
+/*
+===================
+SV_ReadClientMove
+===================
+*/
+int sv_numreadmoves = 0;
+usercmd_t sv_readmoves[CL_MAX_USERCMDS];
+void SV_ReadClientMove (void)
+{
+ int i;
+ usercmd_t newmove;
+ usercmd_t *move = &newmove;
+
+ memset(move, 0, sizeof(*move));
+
+ if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
+
+ // read ping time
+ 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)
+ move->sequence = MSG_ReadLong ();
+ move->time = move->clienttime = MSG_ReadFloat ();
+ if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
+ move->receivetime = (float)sv.time;
+
+#if DEBUGMOVES
+ 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);
+#endif
+ // limit reported time to current time
+ // (incase the client is trying to cheat)
+ move->time = min(move->time, move->receivetime + sv.frametime);
+
+ // read current angles
+ for (i = 0;i < 3;i++)
+ {
+ 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)
+ move->viewangles[i] = MSG_ReadAngle8i();
+ else if (sv.protocol == PROTOCOL_DARKPLACES1)
+ move->viewangles[i] = MSG_ReadAngle16i();
+ else if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
+ move->viewangles[i] = MSG_ReadAngle32f();
+ else
+ move->viewangles[i] = MSG_ReadAngle16i();
+ }
+ if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
+
+ // read movement
+ move->forwardmove = MSG_ReadCoord16i ();
+ move->sidemove = MSG_ReadCoord16i ();
+ move->upmove = MSG_ReadCoord16i ();
+ if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
+
+ // read buttons
+ // be sure to bitwise OR them into the move->buttons because we want to
+ // accumulate button presses from multiple packets per actual move
+ 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)
+ move->buttons = MSG_ReadByte ();
+ else
+ move->buttons = MSG_ReadLong ();
+ if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
+
+ // read impulse
+ move->impulse = MSG_ReadByte ();
+ if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
+
+ // PRYDON_CLIENTCURSOR
+ 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)
+ {
+ // 30 bytes
+ move->cursor_screen[0] = MSG_ReadShort() * (1.0f / 32767.0f);
+ move->cursor_screen[1] = MSG_ReadShort() * (1.0f / 32767.0f);
+ move->cursor_start[0] = MSG_ReadFloat();
+ move->cursor_start[1] = MSG_ReadFloat();
+ move->cursor_start[2] = MSG_ReadFloat();
+ move->cursor_impact[0] = MSG_ReadFloat();
+ move->cursor_impact[1] = MSG_ReadFloat();
+ move->cursor_impact[2] = MSG_ReadFloat();
+ move->cursor_entitynumber = (unsigned short)MSG_ReadShort();
+ if (move->cursor_entitynumber >= prog->max_edicts)
+ {
+ Con_DPrintf("SV_ReadClientMessage: client send bad cursor_entitynumber\n");
+ move->cursor_entitynumber = 0;
+ }
+ // as requested by FrikaC, cursor_trace_ent is reset to world if the
+ // entity is free at time of receipt
+ if (PRVM_EDICT_NUM(move->cursor_entitynumber)->priv.server->free)
+ move->cursor_entitynumber = 0;
+ if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
+ }
+
+ // if the previous move has not been applied yet, we need to accumulate
+ // the impulse/buttons from it
+ if (!host_client->cmd.applied)
+ {
+ if (!move->impulse)
+ move->impulse = host_client->cmd.impulse;
+ move->buttons |= host_client->cmd.buttons;
+ }
+
+ // now store this move for later execution
+ // (we have to buffer the moves because of old ones being repeated)
+ if (sv_numreadmoves < CL_MAX_USERCMDS)
+ sv_readmoves[sv_numreadmoves++] = *move;
+
+ // movement packet loss tracking
+ if(move->sequence)
+ {
+ if(move->sequence > host_client->movement_highestsequence_seen)
+ {
+ if(host_client->movement_highestsequence_seen)
+ {
+ // mark moves in between as lost
+ if(move->sequence - host_client->movement_highestsequence_seen - 1 < NETGRAPH_PACKETS)
+ for(i = host_client->movement_highestsequence_seen + 1; i < move->sequence; ++i)
+ host_client->movement_count[i % NETGRAPH_PACKETS] = -1;
+ else
+ memset(host_client->movement_count, -1, sizeof(host_client->movement_count));
+ }
+ // mark THIS move as seen for the first time
+ host_client->movement_count[move->sequence % NETGRAPH_PACKETS] = 1;
+ // update highest sequence seen
+ host_client->movement_highestsequence_seen = move->sequence;
+ }
+ else
+ if(host_client->movement_count[move->sequence % NETGRAPH_PACKETS] >= 0)
+ ++host_client->movement_count[move->sequence % NETGRAPH_PACKETS];
+ }
+ else
+ {
+ host_client->movement_highestsequence_seen = 0;
+ memset(host_client->movement_count, 0, sizeof(host_client->movement_count));
+ }
+}
+
+void SV_ExecuteClientMoves(void)
+{
+ int moveindex;
+ float moveframetime;
+ double oldframetime;
+ double oldframetime2;
+#ifdef NUM_PING_TIMES
+ double total;
+#endif
+ if (sv_numreadmoves < 1)
+ return;
+ // only start accepting input once the player is spawned
+ if (!host_client->spawned)
+ return;
+#if DEBUGMOVES
+ Con_Printf("SV_ExecuteClientMoves: read %i moves at sv.time %f\n", sv_numreadmoves, (float)sv.time);
+#endif
+ // disable clientside movement prediction in some cases
+ if (ceil(max(sv_readmoves[sv_numreadmoves-1].receivetime - sv_readmoves[sv_numreadmoves-1].time, 0) * 1000.0) < sv_clmovement_minping.integer)
+ host_client->clmovement_disabletimeout = realtime + sv_clmovement_minping_disabletime.value / 1000.0;
+ // several conditions govern whether clientside movement prediction is allowed
+ if (sv_readmoves[sv_numreadmoves-1].sequence && sv_clmovement_enable.integer && sv_clmovement_inputtimeout.value > 0 && host_client->clmovement_disabletimeout <= realtime && PRVM_serveredictfloat(host_client->edict, movetype) == MOVETYPE_WALK && (!PRVM_serveredictfloat(host_client->edict, disableclientprediction)))
+ {
+ // process the moves in order and ignore old ones
+ // but always trust the latest move
+ // (this deals with bogus initial move sequences after level change,
+ // where the client will eventually catch up with the level change
+ // and reset its move sequence)
+ for (moveindex = 0;moveindex < sv_numreadmoves;moveindex++)
+ {
+ usercmd_t *move = sv_readmoves + moveindex;
+ if (host_client->movesequence < move->sequence || moveindex == sv_numreadmoves - 1)
+ {
+#if DEBUGMOVES
+ 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);
+#endif
+ // this is a new move
+ move->time = bound(sv.time - 1, move->time, sv.time); // prevent slowhack/speedhack combos
+ move->time = max(move->time, host_client->cmd.time); // prevent backstepping of time
+ moveframetime = bound(0, move->time - host_client->cmd.time, min(0.1, sv_clmovement_inputtimeout.value));
+
+ // discard (treat like lost) moves with too low distance from
+ // the previous one to prevent hacks using float inaccuracy
+ // clients will see this as packet loss in the netgraph
+ // this should also apply if a move cannot get
+ // executed because it came too late and
+ // already was performed serverside
+ if(moveframetime < 0.0005)
+ {
+ // count the move as LOST if we don't
+ // execute it but it has higher
+ // sequence count
+ if(host_client->movesequence)
+ if(move->sequence > host_client->movesequence)
+ host_client->movement_count[(move->sequence) % NETGRAPH_PACKETS] = -1;
+ continue;
+ }
+
+ //Con_Printf("movesequence = %i (%i lost), moveframetime = %f\n", move->sequence, move->sequence ? move->sequence - host_client->movesequence - 1 : 0, moveframetime);
+ host_client->cmd = *move;
+ host_client->movesequence = move->sequence;
+
+ // if using prediction, we need to perform moves when packets are
+ // received, even if multiple occur in one frame
+ // (they can't go beyond the current time so there is no cheat issue
+ // with this approach, and if they don't send input for a while they
+ // start moving anyway, so the longest 'lagaport' possible is
+ // determined by the sv_clmovement_inputtimeout cvar)
+ if (moveframetime <= 0)
+ continue;
+ oldframetime = PRVM_serverglobalfloat(frametime);
+ oldframetime2 = sv.frametime;
+ // update ping time for qc to see while executing this move
+ host_client->ping = host_client->cmd.receivetime - host_client->cmd.time;
+ // the server and qc frametime values must be changed temporarily
+ PRVM_serverglobalfloat(frametime) = sv.frametime = moveframetime;
+ // if move is more than 50ms, split it into two moves (this matches QWSV behavior and the client prediction)
+ if (sv.frametime > 0.05)
+ {
+ PRVM_serverglobalfloat(frametime) = sv.frametime = moveframetime * 0.5f;
+ SV_Physics_ClientMove();
+ }
+ SV_Physics_ClientMove();
+ sv.frametime = oldframetime2;
+ PRVM_serverglobalfloat(frametime) = oldframetime;
+ host_client->clmovement_inputtimeout = sv_clmovement_inputtimeout.value;
+ }
+ }
+ }
+ else
+ {
+ // try to gather button bits from old moves, but only if their time is
+ // advancing (ones with the same timestamp can't be trusted)
+ for (moveindex = 0;moveindex < sv_numreadmoves-1;moveindex++)
+ {
+ usercmd_t *move = sv_readmoves + moveindex;
+ if (host_client->cmd.time < move->time)
+ {
+ sv_readmoves[sv_numreadmoves-1].buttons |= move->buttons;
+ if (move->impulse)
+ sv_readmoves[sv_numreadmoves-1].impulse = move->impulse;
+ }
+ }
+ // now copy the new move
+ host_client->cmd = sv_readmoves[sv_numreadmoves-1];
+ host_client->cmd.time = max(host_client->cmd.time, sv.time);
+ // physics will run up to sv.time, so allow no predicted moves
+ // before that otherwise, there is a speedhack by turning
+ // prediction on and off repeatedly on client side because the
+ // engine would run BOTH client and server physics for the same
+ // time
+ host_client->movesequence = 0;
+ // make sure that normal physics takes over immediately
+ host_client->clmovement_inputtimeout = 0;
+ }
+
+ // calculate average ping time
+ host_client->ping = host_client->cmd.receivetime - host_client->cmd.clienttime;
+#ifdef NUM_PING_TIMES
+ host_client->ping_times[host_client->num_pings % NUM_PING_TIMES] = host_client->cmd.receivetime - host_client->cmd.clienttime;
+ host_client->num_pings++;
+ for (i=0, total = 0;i < NUM_PING_TIMES;i++)
+ total += host_client->ping_times[i];
+ host_client->ping = total / NUM_PING_TIMES;
+#endif
+}
+
+void SV_ApplyClientMove (void)
+{
+ usercmd_t *move = &host_client->cmd;
+ int j, movementloss, packetloss;
+
+ if (!move->receivetime)
+ return;
+
+ // note: a move can be applied multiple times if the client packets are
+ // not coming as often as the physics is executed, and the move must be
+ // applied before running qc each time because the id1 qc had a bug where
+ // it clears self.button2 in PlayerJump, causing pogostick behavior if
+ // moves are not applied every time before calling qc
+ move->applied = true;
+
+ // set the edict fields
+ PRVM_serveredictfloat(host_client->edict, button0) = move->buttons & 1;
+ PRVM_serveredictfloat(host_client->edict, button2) = (move->buttons & 2)>>1;
+ if (move->impulse)
+ PRVM_serveredictfloat(host_client->edict, impulse) = move->impulse;
+ // only send the impulse to qc once
+ move->impulse = 0;
+
+ movementloss = packetloss = 0;
+ if(host_client->netconnection)
+ {
+ for (j = 0;j < NETGRAPH_PACKETS;j++)
+ if (host_client->netconnection->incoming_netgraph[j].unreliablebytes == NETGRAPH_LOSTPACKET)
+ packetloss++;
+ for (j = 0;j < NETGRAPH_PACKETS;j++)
+ if (host_client->movement_count[j] < 0)
+ movementloss++;
+ }
+
+ VectorCopy(move->viewangles, PRVM_serveredictvector(host_client->edict, v_angle));
+ PRVM_serveredictfloat(host_client->edict, button3) = ((move->buttons >> 2) & 1);
+ PRVM_serveredictfloat(host_client->edict, button4) = ((move->buttons >> 3) & 1);
+ PRVM_serveredictfloat(host_client->edict, button5) = ((move->buttons >> 4) & 1);
+ PRVM_serveredictfloat(host_client->edict, button6) = ((move->buttons >> 5) & 1);
+ PRVM_serveredictfloat(host_client->edict, button7) = ((move->buttons >> 6) & 1);
+ PRVM_serveredictfloat(host_client->edict, button8) = ((move->buttons >> 7) & 1);
+ PRVM_serveredictfloat(host_client->edict, button9) = ((move->buttons >> 11) & 1);
+ PRVM_serveredictfloat(host_client->edict, button10) = ((move->buttons >> 12) & 1);
+ PRVM_serveredictfloat(host_client->edict, button11) = ((move->buttons >> 13) & 1);
+ PRVM_serveredictfloat(host_client->edict, button12) = ((move->buttons >> 14) & 1);
+ PRVM_serveredictfloat(host_client->edict, button13) = ((move->buttons >> 15) & 1);
+ PRVM_serveredictfloat(host_client->edict, button14) = ((move->buttons >> 16) & 1);
+ PRVM_serveredictfloat(host_client->edict, button15) = ((move->buttons >> 17) & 1);
+ PRVM_serveredictfloat(host_client->edict, button16) = ((move->buttons >> 18) & 1);
+ PRVM_serveredictfloat(host_client->edict, buttonuse) = ((move->buttons >> 8) & 1);
+ PRVM_serveredictfloat(host_client->edict, buttonchat) = ((move->buttons >> 9) & 1);
+ PRVM_serveredictfloat(host_client->edict, cursor_active) = ((move->buttons >> 10) & 1);
+ VectorSet(PRVM_serveredictvector(host_client->edict, movement), move->forwardmove, move->sidemove, move->upmove);
+ VectorCopy(move->cursor_screen, PRVM_serveredictvector(host_client->edict, cursor_screen));
+ VectorCopy(move->cursor_start, PRVM_serveredictvector(host_client->edict, cursor_trace_start));
+ VectorCopy(move->cursor_impact, PRVM_serveredictvector(host_client->edict, cursor_trace_endpos));
+ PRVM_serveredictedict(host_client->edict, cursor_trace_ent) = PRVM_EDICT_TO_PROG(PRVM_EDICT_NUM(move->cursor_entitynumber));
+ PRVM_serveredictfloat(host_client->edict, ping) = host_client->ping * 1000.0;
+ PRVM_serveredictfloat(host_client->edict, ping_packetloss) = packetloss / (float) NETGRAPH_PACKETS;
+ PRVM_serveredictfloat(host_client->edict, ping_movementloss) = movementloss / (float) NETGRAPH_PACKETS;
+}
+
+void SV_FrameLost(int framenum)
+{
+ if (host_client->entitydatabase5)
+ {
+ EntityFrame5_LostFrame(host_client->entitydatabase5, framenum);
+ EntityFrameCSQC_LostFrame(host_client, framenum);
+ }
+}
+
+void SV_FrameAck(int framenum)
+{
+ if (host_client->entitydatabase)
+ EntityFrame_AckFrame(host_client->entitydatabase, framenum);
+ else if (host_client->entitydatabase4)
+ EntityFrame4_AckFrame(host_client->entitydatabase4, framenum, true);
+ else if (host_client->entitydatabase5)
+ EntityFrame5_AckFrame(host_client->entitydatabase5, framenum);
+}
+
+/*
+===================
+SV_ReadClientMessage
+===================
+*/
+extern void SV_SendServerinfo(client_t *client);
+extern sizebuf_t vm_tempstringsbuf;
+void SV_ReadClientMessage(void)
+{
+ int cmd, num, start;
+ char *s, *p, *q;
+
+ if(sv_autodemo_perclient.integer >= 2)
+ SV_WriteDemoMessage(host_client, &(host_client->netconnection->message), true);
+
+ //MSG_BeginReading ();
+ sv_numreadmoves = 0;
+
+ for(;;)
+ {
+ if (!host_client->active)
+ {
+ // a command caused an error
+ SV_DropClient (false);
+ return;
+ }
+
+ if (msg_badread)
+ {
+ Con_Print("SV_ReadClientMessage: badread\n");
+ SV_DropClient (false);
+ return;
+ }
+
+ cmd = MSG_ReadByte ();
+ if (cmd == -1)
+ {
+ // end of message
+ // apply the moves that were read this frame
+ SV_ExecuteClientMoves();
+ break;
+ }
+
+ switch (cmd)
+ {
+ default:
+ Con_Printf("SV_ReadClientMessage: unknown command char %i (at offset 0x%x)\n", cmd, msg_readcount);
+ if (developer_networking.integer)
+ Com_HexDumpToConsole(net_message.data, net_message.cursize);
+ SV_DropClient (false);
+ return;
+
+ case clc_nop:
+ break;
+
+ case clc_stringcmd:
+ // allow reliable messages now as the client is done with initial loading
+ if (host_client->sendsignon == 2)
+ host_client->sendsignon = 0;
+ s = MSG_ReadString ();
+ q = NULL;
+ for(p = s; *p; ++p) switch(*p)
+ {
+ case 10:
+ case 13:
+ if(!q)
+ q = p;
+ break;
+ default:
+ if(q)
+ goto clc_stringcmd_invalid; // newline seen, THEN something else -> possible exploit
+ break;
+ }
+ if(q)
+ *q = 0;
+ if (strncasecmp(s, "spawn", 5) == 0
+ || strncasecmp(s, "begin", 5) == 0
+ || strncasecmp(s, "prespawn", 8) == 0)
+ Cmd_ExecuteString (s, src_client);
+ else if (PRVM_serverfunction(SV_ParseClientCommand))
+ {
+ int restorevm_tempstringsbuf_cursize;
+ restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
+ PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(s);
+ PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
+ PRVM_ExecuteProgram (PRVM_serverfunction(SV_ParseClientCommand), "QC function SV_ParseClientCommand is missing");
+ vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
+ }
+ else
+ Cmd_ExecuteString (s, src_client);
+ break;
+
+clc_stringcmd_invalid:
+ Con_Printf("Received invalid stringcmd from %s\n", host_client->name);
+ if(developer.integer > 0)
+ Com_HexDumpToConsole((unsigned char *) s, strlen(s));
+ break;
+
+ case clc_disconnect:
+ SV_DropClient (false); // client wants to disconnect
+ return;
+
+ case clc_move:
+ SV_ReadClientMove();
+ break;
+
+ case clc_ackdownloaddata:
+ start = MSG_ReadLong();
+ num = MSG_ReadShort();
+ if (host_client->download_file && host_client->download_started)
+ {
+ if (host_client->download_expectedposition == start)
+ {
+ int size = (int)FS_FileSize(host_client->download_file);
+ // a data block was successfully received by the client,
+ // update the expected position on the next data block
+ host_client->download_expectedposition = start + num;
+ // if this was the last data block of the file, it's done
+ if (host_client->download_expectedposition >= FS_FileSize(host_client->download_file))
+ {
+ // tell the client that the download finished
+ // we need to calculate the crc now
+ //
+ // note: at this point the OS probably has the file
+ // entirely in memory, so this is a faster operation
+ // now than it was when the download started.
+ //
+ // it is also preferable to do this at the end of the
+ // download rather than the start because it reduces
+ // potential for Denial Of Service attacks against the
+ // server.
+ int crc;
+ unsigned char *temp;
+ FS_Seek(host_client->download_file, 0, SEEK_SET);
+ temp = (unsigned char *) Mem_Alloc(tempmempool, size);
+ FS_Read(host_client->download_file, temp, size);
+ crc = CRC_Block(temp, size);
+ Mem_Free(temp);
+ // calculated crc, send the file info to the client
+ // (so that it can verify the data)
+ Host_ClientCommands("\ncl_downloadfinished %i %i %s\n", size, crc, host_client->download_name);
+ Con_DPrintf("Download of %s by %s has finished\n", host_client->download_name, host_client->name);
+ FS_Close(host_client->download_file);
+ host_client->download_file = NULL;
+ host_client->download_name[0] = 0;
+ host_client->download_expectedposition = 0;
+ host_client->download_started = false;
+ }
+ }
+ else
+ {
+ // a data block was lost, reset to the expected position
+ // and resume sending from there
+ FS_Seek(host_client->download_file, host_client->download_expectedposition, SEEK_SET);
+ }
+ }
+ break;
+
+ case clc_ackframe:
+ if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
+ num = MSG_ReadLong();
+ if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
+ if (developer_networkentities.integer >= 10)
+ Con_Printf("recv clc_ackframe %i\n", num);
+ // if the client hasn't progressed through signons yet,
+ // ignore any clc_ackframes we get (they're probably from the
+ // previous level)
+ if (host_client->spawned && host_client->latestframenum < num)
+ {
+ int i;
+ for (i = host_client->latestframenum + 1;i < num;i++)
+ SV_FrameLost(i);
+ SV_FrameAck(num);
+ host_client->latestframenum = num;
+ }
+ break;
+ }
+ }
+}
+
projects / voretournament / voretournament.git / blobdiff