]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - sv_user.c
tolerate clients living up to one frame in the future, just to be more flexible with...
[xonotic/darkplaces.git] / sv_user.c
index 10cd006b3c608863d8fcd5e379ef21a72ffeee3e..20f909a0b2009be7bc2f75d1472f6fd6320980f6 100644 (file)
--- a/sv_user.c
+++ b/sv_user.c
@@ -8,7 +8,7 @@ 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.  
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
 See the GNU General Public License for more details.
 
@@ -21,29 +21,19 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "quakedef.h"
 
-edict_t        *sv_player;
+cvar_t sv_edgefriction = {0, "edgefriction", "2", "how much you slow down when nearing a ledge you might fall off"};
+cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
+cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
+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)"};
+cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
+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"};
+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"};
+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"};
+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)"};
+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)"};
+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)"};
 
-extern cvar_t  sv_friction;
-cvar_t sv_edgefriction = {"edgefriction", "2"};
-cvar_t sv_predict = {"sv_predict", "1"};
-cvar_t sv_deltacompress = {"sv_deltacompress", "1"};
-extern cvar_t  sv_stopspeed;
-
-static vec3_t          forward, right, up;
-
-vec3_t wishdir;
-float  wishspeed;
-
-// world
-float  *angles;
-float  *origin;
-float  *velocity;
-
-qboolean       onground;
-
-usercmd_t      cmd;
-
-cvar_t sv_idealpitchscale = {"sv_idealpitchscale","0.8"};
+static usercmd_t cmd;
 
 
 /*
@@ -54,40 +44,42 @@ SV_SetIdealPitch
 #define        MAX_FORWARD     6
 void SV_SetIdealPitch (void)
 {
-       float   angleval, sinval, cosval;
+       float   angleval, sinval, cosval, step, dir;
        trace_t tr;
        vec3_t  top, bottom;
        float   z[MAX_FORWARD];
        int             i, j;
-       int             step, dir, steps;
+       int             steps;
 
-       if (!((int)sv_player->v.flags & FL_ONGROUND))
+       if (!((int)host_client->edict->fields.server->flags & FL_ONGROUND))
                return;
-               
-       angleval = sv_player->v.angles[YAW] * M_PI*2 / 360;
+
+       angleval = host_client->edict->fields.server->angles[YAW] * M_PI*2 / 360;
        sinval = sin(angleval);
        cosval = cos(angleval);
 
        for (i=0 ; i<MAX_FORWARD ; i++)
        {
-               top[0] = sv_player->v.origin[0] + cosval*(i+3)*12;
-               top[1] = sv_player->v.origin[1] + sinval*(i+3)*12;
-               top[2] = sv_player->v.origin[2] + sv_player->v.view_ofs[2];
-               
+               top[0] = host_client->edict->fields.server->origin[0] + cosval*(i+3)*12;
+               top[1] = host_client->edict->fields.server->origin[1] + sinval*(i+3)*12;
+               top[2] = host_client->edict->fields.server->origin[2] + host_client->edict->fields.server->view_ofs[2];
+
                bottom[0] = top[0];
                bottom[1] = top[1];
                bottom[2] = top[2] - 160;
-               
-               tr = SV_Move (top, vec3_origin, vec3_origin, bottom, 1, sv_player);
-               if (tr.allsolid)
-                       return; // looking at a wall, leave ideal the way is was
 
+               tr = SV_Move (top, vec3_origin, vec3_origin, bottom, MOVE_NOMONSTERS, host_client->edict);
+               // if looking at a wall, leave ideal the way is was
+               if (tr.startsolid)
+                       return;
+
+               // near a dropoff
                if (tr.fraction == 1)
-                       return; // near a dropoff
-               
+                       return;
+
                z[i] = top[2] + tr.fraction*(bottom[2]-top[2]);
        }
-       
+
        dir = 0;
        steps = 0;
        for (j=1 ; j<i ; j++)
@@ -96,24 +88,29 @@ void SV_SetIdealPitch (void)
                if (step > -ON_EPSILON && step < ON_EPSILON)
                        continue;
 
+               // mixed changes
                if (dir && ( step-dir > ON_EPSILON || step-dir < -ON_EPSILON ) )
-                       return;         // mixed changes
+                       return;
 
-               steps++;        
+               steps++;
                dir = step;
        }
-       
+
        if (!dir)
        {
-               sv_player->v.idealpitch = 0;
+               host_client->edict->fields.server->idealpitch = 0;
                return;
        }
-       
+
        if (steps < 2)
                return;
-       sv_player->v.idealpitch = -dir * sv_idealpitchscale.value;
+       host_client->edict->fields.server->idealpitch = -dir * sv_idealpitchscale.value;
 }
 
+static vec3_t wishdir, forward, right, up;
+static float wishspeed;
+
+static qboolean onground;
 
 /*
 ==================
@@ -123,43 +120,37 @@ SV_UserFriction
 */
 void SV_UserFriction (void)
 {
-       float   *vel;
-       float   speed, newspeed, control;
-       vec3_t  start, stop;
-       float   friction;
-       trace_t trace;
-       
-       vel = velocity;
-       
-       speed = sqrt(vel[0]*vel[0] +vel[1]*vel[1]);
+       float speed, newspeed, control, friction;
+       vec3_t start, stop;
+       trace_t trace;
+
+       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]);
        if (!speed)
                return;
 
-// if the leading edge is over a dropoff, increase friction
-       start[0] = stop[0] = origin[0] + vel[0]/speed*16;
-       start[1] = stop[1] = origin[1] + vel[1]/speed*16;
-       start[2] = origin[2] + sv_player->v.mins[2];
+       // if the leading edge is over a dropoff, increase friction
+       start[0] = stop[0] = host_client->edict->fields.server->origin[0] + host_client->edict->fields.server->velocity[0]/speed*16;
+       start[1] = stop[1] = host_client->edict->fields.server->origin[1] + host_client->edict->fields.server->velocity[1]/speed*16;
+       start[2] = host_client->edict->fields.server->origin[2] + host_client->edict->fields.server->mins[2];
        stop[2] = start[2] - 34;
 
-       trace = SV_Move (start, vec3_origin, vec3_origin, stop, true, sv_player);
+       trace = SV_Move (start, vec3_origin, vec3_origin, stop, MOVE_NOMONSTERS, host_client->edict);
 
        if (trace.fraction == 1.0)
                friction = sv_friction.value*sv_edgefriction.value;
        else
                friction = sv_friction.value;
 
-// apply friction      
+       // 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;
 
-       vel[0] = vel[0] * newspeed;
-       vel[1] = vel[1] * newspeed;
-       vel[2] = vel[2] * newspeed;
+       VectorScale(host_client->edict->fields.server->velocity, newspeed, host_client->edict->fields.server->velocity);
 }
 
 /*
@@ -167,84 +158,60 @@ void SV_UserFriction (void)
 SV_Accelerate
 ==============
 */
-cvar_t sv_maxspeed = {"sv_maxspeed", "320", false, true};
-cvar_t sv_accelerate = {"sv_accelerate", "10"};
-#if 0
-void SV_Accelerate (vec3_t wishvel)
-{
-       int                     i;
-       float           addspeed, accelspeed;
-       vec3_t          pushvec;
-
-       if (wishspeed == 0)
-               return;
-
-       VectorSubtract (wishvel, velocity, pushvec);
-       addspeed = VectorNormalize (pushvec);
-
-       accelspeed = sv_accelerate.value*sv.frametime*addspeed;
-       if (accelspeed > addspeed)
-               accelspeed = addspeed;
-       
-       for (i=0 ; i<3 ; i++)
-               velocity[i] += accelspeed*pushvec[i];   
-}
-#endif
 void SV_Accelerate (void)
 {
-       int                     i;
-       float           addspeed, accelspeed, currentspeed;
+       int i;
+       float addspeed, accelspeed, currentspeed;
 
-       currentspeed = DotProduct (velocity, wishdir);
+       currentspeed = DotProduct (host_client->edict->fields.server->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++)
-               velocity[i] += accelspeed*wishdir[i];   
+               host_client->edict->fields.server->velocity[i] += accelspeed*wishdir[i];
 }
 
 void SV_AirAccelerate (vec3_t wishveloc)
 {
-       int                     i;
-       float           addspeed, wishspd, accelspeed, currentspeed;
-               
+       int i;
+       float addspeed, wishspd, accelspeed, currentspeed;
+
        wishspd = VectorNormalizeLength (wishveloc);
-       if (wishspd > 30)
-               wishspd = 30;
-       currentspeed = DotProduct (velocity, wishveloc);
+       if (wishspd > sv_maxairspeed.value)
+               wishspd = sv_maxairspeed.value;
+       currentspeed = DotProduct (host_client->edict->fields.server->velocity, wishveloc);
        addspeed = wishspd - currentspeed;
        if (addspeed <= 0)
                return;
-//     accelspeed = sv_accelerate.value * sv.frametime;
-       accelspeed = sv_accelerate.value*wishspeed * sv.frametime;
+       accelspeed = (sv_airaccelerate.value < 0 ? sv_accelerate.value : sv_airaccelerate.value)*wishspeed * sv.frametime;
        if (accelspeed > addspeed)
                accelspeed = addspeed;
-       
+
        for (i=0 ; i<3 ; i++)
-               velocity[i] += accelspeed*wishveloc[i]; 
+               host_client->edict->fields.server->velocity[i] += accelspeed*wishveloc[i];
 }
 
 
 void DropPunchAngle (void)
 {
-       float   len;
-       eval_t  *val;
-       
-       len = VectorNormalizeLength (sv_player->v.punchangle);
-       
+       float len;
+       prvm_eval_t *val;
+
+       len = VectorNormalizeLength (host_client->edict->fields.server->punchangle);
+
        len -= 10*sv.frametime;
        if (len < 0)
                len = 0;
-       VectorScale (sv_player->v.punchangle, len, sv_player->v.punchangle);
-       
-       if ((val = GETEDICTFIELDVALUE(sv_player, eval_punchvector)))
+       VectorScale (host_client->edict->fields.server->punchangle, len, host_client->edict->fields.server->punchangle);
+
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_punchvector)))
        {
                len = VectorNormalizeLength (val->vector);
-               
+
                len -= 20*sv.frametime;
                if (len < 0)
                        len = 0;
@@ -252,6 +219,28 @@ void DropPunchAngle (void)
        }
 }
 
+/*
+===================
+SV_FreeMove
+===================
+*/
+void SV_FreeMove (void)
+{
+       int i;
+       float wishspeed;
+
+       AngleVectors (host_client->edict->fields.server->v_angle, forward, right, up);
+
+       for (i = 0; i < 3; i++)
+               host_client->edict->fields.server->velocity[i] = forward[i] * cmd.forwardmove + right[i] * cmd.sidemove;
+
+       host_client->edict->fields.server->velocity[2] += cmd.upmove;
+
+       wishspeed = VectorLength(host_client->edict->fields.server->velocity);
+       if (wishspeed > sv_maxspeed.value)
+               VectorScale(host_client->edict->fields.server->velocity, sv_maxspeed.value / wishspeed, host_client->edict->fields.server->velocity);
+}
+
 /*
 ===================
 SV_WaterMove
@@ -260,14 +249,12 @@ SV_WaterMove
 */
 void SV_WaterMove (void)
 {
-       int             i;
-       vec3_t  wishvel;
-       float   speed, newspeed, wishspeed, addspeed, accelspeed;
+       int i;
+       vec3_t wishvel;
+       float speed, newspeed, wishspeed, addspeed, accelspeed, temp;
 
-//
-// user intentions
-//
-       AngleVectors (sv_player->v.v_angle, forward, right, up);
+       // user intentions
+       AngleVectors (host_client->edict->fields.server->v_angle, forward, right, up);
 
        for (i=0 ; i<3 ; i++)
                wishvel[i] = forward[i]*cmd.forwardmove + right[i]*cmd.sidemove;
@@ -277,31 +264,29 @@ void SV_WaterMove (void)
        else
                wishvel[2] += cmd.upmove;
 
-       wishspeed = Length(wishvel);
+       wishspeed = VectorLength(wishvel);
        if (wishspeed > sv_maxspeed.value)
        {
-               VectorScale (wishvel, sv_maxspeed.value/wishspeed, wishvel);
+               temp = sv_maxspeed.value/wishspeed;
+               VectorScale (wishvel, temp, wishvel);
                wishspeed = sv_maxspeed.value;
        }
        wishspeed *= 0.7;
 
-//
-// water friction
-//
-       speed = Length (velocity);
+       // water friction
+       speed = VectorLength(host_client->edict->fields.server->velocity);
        if (speed)
        {
-               newspeed = speed - sv.frametime * speed * sv_friction.value;
+               newspeed = speed - sv.frametime * speed * sv_waterfriction.value;
                if (newspeed < 0)
-                       newspeed = 0;   
-               VectorScale (velocity, newspeed/speed, velocity);
+                       newspeed = 0;
+               temp = newspeed/speed;
+               VectorScale(host_client->edict->fields.server->velocity, temp, host_client->edict->fields.server->velocity);
        }
        else
                newspeed = 0;
-       
-//
-// water acceleration
-//
+
+       // water acceleration
        if (!wishspeed)
                return;
 
@@ -310,24 +295,23 @@ void SV_WaterMove (void)
                return;
 
        VectorNormalize (wishvel);
-       accelspeed = sv_accelerate.value * wishspeed * sv.frametime;
+       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++)
-               velocity[i] += accelspeed * wishvel[i];
+               host_client->edict->fields.server->velocity[i] += accelspeed * wishvel[i];
 }
 
 void SV_WaterJump (void)
 {
-       if (sv.time > sv_player->v.teleport_time
-       || !sv_player->v.waterlevel)
+       if (sv.time > host_client->edict->fields.server->teleport_time || !host_client->edict->fields.server->waterlevel)
        {
-               sv_player->v.flags = (int)sv_player->v.flags & ~FL_WATERJUMP;
-               sv_player->v.teleport_time = 0;
+               host_client->edict->fields.server->flags = (int)host_client->edict->fields.server->flags & ~FL_WATERJUMP;
+               host_client->edict->fields.server->teleport_time = 0;
        }
-       sv_player->v.velocity[0] = sv_player->v.movedir[0];
-       sv_player->v.velocity[1] = sv_player->v.movedir[1];
+       host_client->edict->fields.server->velocity[0] = host_client->edict->fields.server->movedir[0];
+       host_client->edict->fields.server->velocity[1] = host_client->edict->fields.server->movedir[1];
 }
 
 
@@ -339,52 +323,52 @@ SV_AirMove
 */
 void SV_AirMove (void)
 {
-       int                     i;
-       vec3_t          wishvel;
-       float           fmove, smove;
+       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] = sv_player->v.angles[1];
+       wishvel[1] = host_client->edict->fields.server->angles[1];
        AngleVectors (wishvel, forward, right, up);
-//     AngleVectors (sv_player->v.angles, forward, right, up);
 
        fmove = cmd.forwardmove;
        smove = cmd.sidemove;
-       
+
 // hack to not let you back into teleporter
-       if (sv.time < sv_player->v.teleport_time && fmove < 0)
+       if (sv.time < host_client->edict->fields.server->teleport_time && fmove < 0)
                fmove = 0;
-               
+
        for (i=0 ; i<3 ; i++)
                wishvel[i] = forward[i]*fmove + right[i]*smove;
 
-       if ( (int)sv_player->v.movetype != MOVETYPE_WALK)
-               wishvel[2] = cmd.upmove;
-       else
-               wishvel[2] = 0;
+       if ((int)host_client->edict->fields.server->movetype != MOVETYPE_WALK)
+               wishvel[2] += cmd.upmove;
 
        VectorCopy (wishvel, wishdir);
        wishspeed = VectorNormalizeLength(wishdir);
        if (wishspeed > sv_maxspeed.value)
        {
-               VectorScale (wishvel, sv_maxspeed.value/wishspeed, wishvel);
+               temp = sv_maxspeed.value/wishspeed;
+               VectorScale (wishvel, temp, wishvel);
                wishspeed = sv_maxspeed.value;
        }
-       
-       if ( sv_player->v.movetype == MOVETYPE_NOCLIP)
-       {       // noclip
-               VectorCopy (wishvel, velocity);
+
+       if (host_client->edict->fields.server->movetype == MOVETYPE_NOCLIP)
+       {
+               // noclip
+               VectorCopy (wishvel, host_client->edict->fields.server->velocity);
        }
-       else if ( onground )
+       else if (onground && (!sv_gameplayfix_qwplayerphysics.integer || !(host_client->edict->fields.server->button2 || !((int)host_client->edict->fields.server->flags & FL_JUMPRELEASED))))
        {
                SV_UserFriction ();
                SV_Accelerate ();
        }
        else
-       {       // not on ground, so little effect on velocity
+       {
+               // not on ground, so little effect on velocity
                SV_AirAccelerate (wishvel);
-       }               
+       }
 }
 
 /*
@@ -397,274 +381,419 @@ the angle fields specify an exact angular motion in degrees
 */
 void SV_ClientThink (void)
 {
-       vec3_t          v_angle;
+       vec3_t v_angle;
 
-       if (sv_player->v.movetype == MOVETYPE_NONE)
+       if (host_client->edict->fields.server->movetype == MOVETYPE_NONE)
                return;
-       
-       onground = (int)sv_player->v.flags & FL_ONGROUND;
 
-       origin = sv_player->v.origin;
-       velocity = sv_player->v.velocity;
+       onground = (int)host_client->edict->fields.server->flags & FL_ONGROUND;
 
        DropPunchAngle ();
-       
-//
-// if dead, behave differently
-//
-       if (sv_player->v.health <= 0)
+
+       // if dead, behave differently
+       if (host_client->edict->fields.server->health <= 0)
                return;
 
-//
-// angles
-// show 1/3 the pitch angle and all the roll angle
        cmd = host_client->cmd;
-       angles = sv_player->v.angles;
-       
-       VectorAdd (sv_player->v.v_angle, sv_player->v.punchangle, v_angle);
-       angles[ROLL] = V_CalcRoll (sv_player->v.angles, sv_player->v.velocity)*4;
-       if (!sv_player->v.fixangle)
+
+       // angles
+       // show 1/3 the pitch angle and all the roll angle
+       VectorAdd (host_client->edict->fields.server->v_angle, host_client->edict->fields.server->punchangle, v_angle);
+       host_client->edict->fields.server->angles[ROLL] = V_CalcRoll (host_client->edict->fields.server->angles, host_client->edict->fields.server->velocity)*4;
+       if (!host_client->edict->fields.server->fixangle)
        {
-               // LordHavoc: pitch was ugly to begin with...  removed except in water
-               if (sv_player->v.waterlevel >= 2)
-                       angles[PITCH] = -v_angle[PITCH]/3;
-               else
-                       angles[PITCH] = 0;
-               angles[YAW] = v_angle[YAW];
+               host_client->edict->fields.server->angles[PITCH] = -v_angle[PITCH]/3;
+               host_client->edict->fields.server->angles[YAW] = v_angle[YAW];
        }
 
-       if ( (int)sv_player->v.flags & FL_WATERJUMP )
+       if ( (int)host_client->edict->fields.server->flags & FL_WATERJUMP )
        {
                SV_WaterJump ();
                return;
        }
-//
-// walk
-//
-       if ( (sv_player->v.waterlevel >= 2)     && (sv_player->v.movetype != MOVETYPE_NOCLIP) )
+
+       /*
+       // Player is (somehow) outside of the map, or flying, or noclipping
+       if (host_client->edict->fields.server->movetype != MOVETYPE_NOCLIP && (host_client->edict->fields.server->movetype == MOVETYPE_FLY || SV_TestEntityPosition (host_client->edict)))
+       //if (host_client->edict->fields.server->movetype == MOVETYPE_NOCLIP || host_client->edict->fields.server->movetype == MOVETYPE_FLY || SV_TestEntityPosition (host_client->edict))
+       {
+               SV_FreeMove ();
+               return;
+       }
+       */
+
+       // walk
+       if ((host_client->edict->fields.server->waterlevel >= 2) && (host_client->edict->fields.server->movetype != MOVETYPE_NOCLIP))
        {
                SV_WaterMove ();
                return;
        }
 
-       SV_AirMove ();  
+       SV_AirMove ();
 }
 
-
 /*
 ===================
 SV_ReadClientMove
 ===================
 */
-void SV_ReadClientMove (usercmd_t *move)
+qboolean SV_ReadClientMove (void)
 {
-       int             i;
-       vec3_t  angle;
-       int             bits;
-       eval_t  *val;
-       float   total;
-       
-// read ping time
-       host_client->ping_times[host_client->num_pings%NUM_PING_TIMES]
-               = sv.time - MSG_ReadFloat ();
-       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; // can be used for prediction
-       host_client->latency = 0;
-       if (sv_predict.value && (svs.maxclients > 1) && (!sv.paused)) // if paused or a local game, don't predict
-               host_client->latency = host_client->ping;
-       if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_ping)))
-               val->_float = host_client->ping * 1000.0;
-
-// read current angles
-       if (dpprotocol)
+       qboolean kickplayer = false;
+       int i;
+#ifdef NUM_PING_TIMES
+       double total;
+#endif
+       double moveframetime;
+       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_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 = MSG_ReadFloat ();
+       if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
+       move->receivetime = (float)sv.time;
+
+       // 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++)
        {
-               for (i=0 ; i<3 ; i++)
-                       angle[i] = MSG_ReadPreciseAngle ();
+               if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE)
+                       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_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_DARKPLACES1 && sv.protocol != PROTOCOL_DARKPLACES2 && sv.protocol != PROTOCOL_DARKPLACES3 && sv.protocol != PROTOCOL_DARKPLACES4 && sv.protocol != PROTOCOL_DARKPLACES5)
        {
-               for (i=0 ; i<3 ; i++)
-                       angle[i] = MSG_ReadAngle ();
+               // 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__);
        }
 
-       VectorCopy (angle, host_client->edict->v.v_angle);
-               
-// read movement
-       move->forwardmove = MSG_ReadShort ();
-       move->sidemove = MSG_ReadShort ();
-       move->upmove = MSG_ReadShort ();
-       if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_movement)))
+       if (move->sequence && move->sequence <= host_client->movesequence)
        {
-               val->vector[0] = move->forwardmove;
-               val->vector[1] = move->sidemove;
-               val->vector[2] = move->upmove;
+               // repeat of old input (to fight packet loss)
+               return kickplayer;
        }
-       
-// read buttons
-       bits = MSG_ReadByte ();
-       host_client->edict->v.button0 = bits & 1;
-       host_client->edict->v.button2 = (bits & 2)>>1;
-       // LordHavoc: added 6 new buttons
-       if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button3))) val->_float = ((bits >> 2) & 1);
-       if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button4))) val->_float = ((bits >> 3) & 1);
-       if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button5))) val->_float = ((bits >> 4) & 1);
-       if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button6))) val->_float = ((bits >> 5) & 1);
-       if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button7))) val->_float = ((bits >> 6) & 1);
-       if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_button8))) val->_float = ((bits >> 7) & 1);
-
-       i = MSG_ReadByte ();
-       if (i)
-               host_client->edict->v.impulse = i;
-}
 
-/*
-===================
-SV_ReadClientMessage
+       // 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;
+       }
 
-Returns false if the client should be killed
-===================
-*/
-qboolean SV_ReadClientMessage (void)
-{
-       int             ret;
-       int             cmd;
-       char            *s;
+       moveframetime = bound(0, move->time - host_client->cmd.time, 0.1);
+       //Con_Printf("movesequence = %i (%i lost), moveframetime = %f\n", move->sequence, move->sequence ? move->sequence - host_client->movesequence - 1 : 0, moveframetime);
+
+       // disable clientside movement prediction in some cases
+       if (ceil((move->receivetime - move->time) * 1000.0) < sv_clmovement_minping.integer)
+               host_client->clmovement_disabletimeout = realtime + sv_clmovement_minping_disabletime.value / 1000.0;
+       if (!sv_clmovement_enable.integer || host_client->clmovement_disabletimeout > realtime)
+               move->sequence = 0;
+
+       // calculate average ping time
+       host_client->ping = move->receivetime - move->time;
+#ifdef NUM_PING_TIMES
+       host_client->ping_times[host_client->num_pings % NUM_PING_TIMES] = move->receivetime - move->time;
+       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
 
-       do
+       // only start accepting input once the player is spawned
+       if (host_client->spawned)
        {
-nextmsg:
-               ret = NET_GetMessage (host_client->netconnection);
-               if (ret == -1)
+               // at this point we know this input is new and should be stored
+               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_waitforinput cvar)
+               if (host_client->movesequence && sv_clmovement_waitforinput.integer > 0 && moveframetime > 0)
                {
-                       Sys_Printf ("SV_ReadClientMessage: NET_GetMessage failed\n");
-                       return false;
+                       double oldframetime = prog->globals.server->frametime;
+                       double oldframetime2 = sv.frametime;
+                       // the server and qc frametime values must be changed temporarily
+                       sv.frametime = moveframetime;
+                       prog->globals.server->frametime = moveframetime;
+                       SV_Physics_ClientEntity(host_client->edict);
+                       sv.frametime = oldframetime2;
+                       prog->globals.server->frametime = oldframetime;
+                       host_client->clmovement_skipphysicsframes = sv_clmovement_waitforinput.integer;
                }
-               if (!ret)
-                       return true;
-
-               MSG_BeginReading ();
+       }
 
-               while (1)
-               {
-                       if (!host_client->active)
-                               return false;   // a command caused an error
+       return kickplayer;
+}
 
-                       if (msg_badread)
-                       {
-                               Sys_Printf ("SV_ReadClientMessage: badread\n");
-                               return false;
-                       }       
-       
-                       cmd = MSG_ReadChar ();
-                       
-                       switch (cmd)
-                       {
-                       case -1:
-                               goto nextmsg;           // end of message
-                               
-                       default:
-                               Sys_Printf ("SV_ReadClientMessage: unknown command char\n");
-                               return false;
-                                                       
-                       case clc_nop:
-//                             Sys_Printf ("clc_nop\n");
-                               break;
-                               
-                       case clc_stringcmd:     
-                               s = MSG_ReadString ();
-                               ret = 0;
-                               if (Q_strncasecmp(s, "status", 6) == 0
-                                || Q_strncasecmp(s, "name", 4) == 0
-                                || Q_strncasecmp(s, "say", 3) == 0
-                                || Q_strncasecmp(s, "say_team", 8) == 0
-                                || Q_strncasecmp(s, "tell", 4) == 0
-                                || Q_strncasecmp(s, "color", 5) == 0
-                                || Q_strncasecmp(s, "kill", 4) == 0
-                                || Q_strncasecmp(s, "pause", 5) == 0
-                                || Q_strncasecmp(s, "spawn", 5) == 0
-                                || Q_strncasecmp(s, "begin", 5) == 0
-                                || Q_strncasecmp(s, "prespawn", 8) == 0
-                                || Q_strncasecmp(s, "kick", 4) == 0
-                                || Q_strncasecmp(s, "ping", 4) == 0
-                                || Q_strncasecmp(s, "ban", 3) == 0
-                                || Q_strncasecmp(s, "pmodel", 6) == 0
-                                || (nehahra && (Q_strncasecmp(s, "max", 3) == 0 || Q_strncasecmp(s, "monster", 7) == 0 || Q_strncasecmp(s, "scrag", 5) == 0 || Q_strncasecmp(s, "gimme", 5) == 0 || Q_strncasecmp(s, "wraith", 6) == 0))
-                                || (!nehahra && (Q_strncasecmp(s, "god", 3) == 0 || Q_strncasecmp(s, "notarget", 8) == 0 || Q_strncasecmp(s, "fly", 3) == 0 || Q_strncasecmp(s, "give", 4) == 0 || Q_strncasecmp(s, "noclip", 6) == 0)))
-                               {
-                                       ret = 1;
-                                       Cmd_ExecuteString (s, src_client);
-                               }
-                               else
-                                       Con_DPrintf("%s tried to %s\n", host_client->name, s);
-                               /*
-                               if (ret == 2)
-                                       Cbuf_InsertText (s);
-                               else if (ret == 1)
-                                       Cmd_ExecuteString (s, src_client);
-                               else
-                                       Con_DPrintf("%s tried to %s\n", host_client->name, s);
-                               */
-                               break;
+void SV_ApplyClientMove (void)
+{
+       prvm_eval_t *val;
+       usercmd_t *move = &host_client->cmd;
 
-                       case clc_disconnect:
-//                             Sys_Printf ("SV_ReadClientMessage: client disconnected\n");
-                               return false;
+       if (!move->receivetime)
+               return;
 
-                       case clc_move:
-                               SV_ReadClientMove (&host_client->cmd);
-                               break;
-                       }
-               }
-       } while (ret == 1);
+       // 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
+       host_client->edict->fields.server->button0 = move->buttons & 1;
+       host_client->edict->fields.server->button2 = (move->buttons & 2)>>1;
+       if (move->impulse)
+               host_client->edict->fields.server->impulse = move->impulse;
+       // only send the impulse to qc once
+       move->impulse = 0;
+       VectorCopy(move->viewangles, host_client->edict->fields.server->v_angle);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button3))) val->_float = ((move->buttons >> 2) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button4))) val->_float = ((move->buttons >> 3) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button5))) val->_float = ((move->buttons >> 4) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button6))) val->_float = ((move->buttons >> 5) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button7))) val->_float = ((move->buttons >> 6) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button8))) val->_float = ((move->buttons >> 7) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button9))) val->_float = ((move->buttons >> 11) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button10))) val->_float = ((move->buttons >> 12) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button11))) val->_float = ((move->buttons >> 13) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button12))) val->_float = ((move->buttons >> 14) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button13))) val->_float = ((move->buttons >> 15) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button14))) val->_float = ((move->buttons >> 16) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button15))) val->_float = ((move->buttons >> 17) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_button16))) val->_float = ((move->buttons >> 18) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_buttonuse))) val->_float = ((move->buttons >> 8) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_buttonchat))) val->_float = ((move->buttons >> 9) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_cursor_active))) val->_float = ((move->buttons >> 10) & 1);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_movement))) VectorSet(val->vector, move->forwardmove, move->sidemove, move->upmove);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_cursor_screen))) VectorCopy(move->cursor_screen, val->vector);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_cursor_trace_start))) VectorCopy(move->cursor_start, val->vector);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_cursor_trace_endpos))) VectorCopy(move->cursor_impact, val->vector);
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_cursor_trace_ent))) val->edict = PRVM_EDICT_TO_PROG(PRVM_EDICT_NUM(move->cursor_entitynumber));
+       if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_ping))) val->_float = host_client->ping * 1000.0;
+}
 
-       return true;
+void SV_FrameLost(int framenum)
+{
+       if (host_client->entitydatabase5)
+               EntityFrame5_LostFrame(host_client->entitydatabase5, 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_RunClients
-==================
+===================
+SV_ReadClientMessage
+===================
 */
-extern dfunction_t *SV_PlayerPhysicsQC;
-void SV_RunClients (void)
+extern void SV_SendServerinfo(client_t *client);
+extern sizebuf_t vm_tempstringsbuf;
+void SV_ReadClientMessage(void)
 {
-       int                             i;
+       int cmd, num, start;
+       char *s;
+
+       //MSG_BeginReading ();
 
-       for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
+       for(;;)
        {
                if (!host_client->active)
-                       continue;
-       
-               sv_player = host_client->edict;
+               {
+                       // a command caused an error
+                       SV_DropClient (false);
+                       return;
+               }
 
-               if (!SV_ReadClientMessage ())
+               if (msg_badread)
                {
-                       SV_DropClient (false);  // client misbehaved...
-                       continue;
+                       Con_Print("SV_ReadClientMessage: badread\n");
+                       SV_DropClient (false);
+                       return;
                }
 
-               if (!host_client->spawned)
+               cmd = MSG_ReadByte ();
+               if (cmd == -1)
                {
-               // clear client movement until a new packet is received
-                       memset (&host_client->cmd, 0, sizeof(host_client->cmd));
-                       continue;
+                       // end of message
+                       break;
                }
 
-// always pause in single player if in console or menus
-               if (!sv.paused && (svs.maxclients > 1 || key_dest == key_game) )
+               switch (cmd)
                {
-                       // LordHavoc: QuakeC replacement for SV_ClientThink (player movement)
-                       if (SV_PlayerPhysicsQC)
+               default:
+                       Con_Printf("SV_ReadClientMessage: unknown command char %i\n", cmd);
+                       SV_DropClient (false);
+                       return;
+
+               case clc_nop:
+                       break;
+
+               case clc_stringcmd:
+                       s = MSG_ReadString ();
+                       if (strncasecmp(s, "spawn", 5) == 0
+                        || strncasecmp(s, "begin", 5) == 0
+                        || strncasecmp(s, "prespawn", 8) == 0)
+                               Cmd_ExecuteString (s, src_client);
+                       else if (SV_ParseClientCommandQC)
                        {
-                               pr_global_struct->time = sv.time;
-                               pr_global_struct->self = EDICT_TO_PROG(sv_player);
-                               PR_ExecuteProgram ((func_t)(SV_PlayerPhysicsQC - pr_functions), "");
+                               int restorevm_tempstringsbuf_cursize;
+                               restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
+                               PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(s);
+                               prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
+                               PRVM_ExecuteProgram ((func_t)(SV_ParseClientCommandQC - prog->functions), "QC function SV_ParseClientCommand is missing");
+                               vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
                        }
                        else
-                               SV_ClientThink ();
+                               Cmd_ExecuteString (s, src_client);
+                       break;
+
+               case clc_disconnect:
+                       SV_DropClient (false); // client wants to disconnect
+                       return;
+
+               case clc_move:
+                       // if ReadClientMove returns true, the client tried to speed cheat
+                       if (SV_ReadClientMove ())
+                               SV_DropClient (false);
+                       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 = 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(va("\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 >= 1)
+                               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;
                }
        }
 }