X-Git-Url: http://de.git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=sv_user.c;h=8ce2181dd086392971fba90edced8e2ac5ea58ef;hp=cddaf7f708bf359ef55b4fc97a567c54defc0beb;hb=16742571f9a7d696a654668febdc10b4f4affd57;hpb=3e69400aac1842c4ed7f9131c1cd67cafc3d1084

diff --git a/sv_user.c b/sv_user.c
index cddaf7f7..8ce2181d 100644
--- a/sv_user.c
+++ b/sv_user.c
@@ -26,6 +26,12 @@ cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up
 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)"};
 
 static usercmd_t cmd;
 
@@ -38,12 +44,12 @@ 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)host_client->edict->fields.server->flags & FL_ONGROUND))
 		return;
@@ -62,7 +68,7 @@ void SV_SetIdealPitch (void)
 		bottom[1] = top[1];
 		bottom[2] = top[2] - 160;
 
-		tr = SV_Move (top, vec3_origin, vec3_origin, bottom, MOVE_NOMONSTERS, host_client->edict);
+		tr = SV_Move (top, vec3_origin, vec3_origin, bottom, MOVE_NOMONSTERS, host_client->edict, SUPERCONTENTS_SOLID);
 		// if looking at a wall, leave ideal the way is was
 		if (tr.startsolid)
 			return;
@@ -101,7 +107,6 @@ void SV_SetIdealPitch (void)
 	host_client->edict->fields.server->idealpitch = -dir * sv_idealpitchscale.value;
 }
 
-#if 1
 static vec3_t wishdir, forward, right, up;
 static float wishspeed;
 
@@ -129,7 +134,7 @@ void SV_UserFriction (void)
 	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, MOVE_NOMONSTERS, host_client->edict);
+	trace = SV_Move (start, vec3_origin, vec3_origin, stop, MOVE_NOMONSTERS, host_client->edict, SV_GenericHitSuperContentsMask(host_client->edict));
 
 	if (trace.fraction == 1.0)
 		friction = sv_friction.value*sv_edgefriction.value;
@@ -182,7 +187,7 @@ void SV_AirAccelerate (vec3_t wishveloc)
 	addspeed = wishspd - currentspeed;
 	if (addspeed <= 0)
 		return;
-	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;
 
@@ -203,7 +208,7 @@ void DropPunchAngle (void)
 		len = 0;
 	VectorScale (host_client->edict->fields.server->punchangle, len, host_client->edict->fields.server->punchangle);
 
-	if ((val = PRVM_GETEDICTFIELDVALUE(host_client->edict, eval_punchvector)))
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.punchvector)))
 	{
 		len = VectorNormalizeLength (val->vector);
 
@@ -272,7 +277,7 @@ void SV_WaterMove (void)
 	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;
 		temp = newspeed/speed;
@@ -290,7 +295,7 @@ 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;
 
@@ -354,7 +359,7 @@ void SV_AirMove (void)
 		// 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 ();
@@ -427,195 +432,34 @@ void SV_ClientThink (void)
 	SV_AirMove ();
 }
 
-#else
-
-extern cvar_t cl_rollspeed;
-extern cvar_t cl_rollangle;
-void SV_ClientThink(void)
-{
-	int j;
-	vec3_t wishvel, wishdir, v, v_forward, v_right, v_up, start, stop;
-	float wishspeed, f, limit;
-	trace_t trace;
-
-	if (host_client->edict->fields.server->movetype == MOVETYPE_NONE)
-		return;
-
-	f = DotProduct(host_client->edict->fields.server->punchangle, host_client->edict->fields.server->punchangle);
-	if (f)
-	{
-		limit = sqrt(f);
-		f = (limit - 10 * sv.frametime);
-		f /= limit;
-		f = max(0, f);
-		VectorScale(host_client->edict->fields.server->punchangle, f, host_client->edict->fields.server->punchangle);
-	}
-
-	// if dead, behave differently
-	if (host_client->edict->fields.server->health <= 0)
-		return;
-
-	AngleVectors(host_client->edict->fields.server->v_angle, v_forward, v_right, v_up);
-	// show 1/3 the pitch angle and all the roll angle
-	f = DotProduct(host_client->edict->fields.server->velocity, v_right) * (1.0 / cl_rollspeed.value);
-	host_client->edict->fields.server->angles[2] = bound(-1, f, 1) * cl_rollangle.value * 4;
-	if (!host_client->edict->fields.server->fixangle)
-	{
-		host_client->edict->fields.server->angles[0] = (host_client->edict->fields.server->v_angle[0] + host_client->edict->fields.server->punchangle[0]) * -0.333;
-		host_client->edict->fields.server->angles[1] = host_client->edict->fields.server->v_angle[1] + host_client->edict->fields.server->punchangle[1];
-	}
-
-	if ((int)host_client->edict->fields.server->flags & FL_WATERJUMP)
-	{
-		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];
-		if (sv.time > host_client->edict->fields.server->teleport_time || host_client->edict->fields.server->waterlevel == 0)
-		{
-			host_client->edict->fields.server->flags = (int)host_client->edict->fields.server->flags - ((int)host_client->edict->fields.server->flags & FL_WATERJUMP);
-			host_client->edict->fields.server->teleport_time = 0;
-		}
-		return;
-	}
-
-	// swim
-	if (host_client->edict->fields.server->waterlevel >= 2)
-	if (host_client->edict->fields.server->movetype != MOVETYPE_NOCLIP)
-	{
-		if (host_client->cmd.forwardmove == 0 && host_client->cmd.sidemove == 0 && host_client->cmd.upmove == 0)
-		{
-			// drift towards bottom
-			wishvel[0] = 0;
-			wishvel[1] = 0;
-			wishvel[2] = -60;
-		}
-		else
-		{
-			for (j = 0;j < 3;j++)
-				wishvel[j] = v_forward[j] * host_client->cmd.forwardmove + v_right[j] * host_client->cmd.sidemove;
-			wishvel[2] += host_client->cmd.upmove;
-		}
-
-		wishspeed = VectorLength(wishvel);
-		wishspeed = min(wishspeed, sv_maxspeed.value) * 0.7;
-
-		// water friction
-		f = VectorLength(host_client->edict->fields.server->velocity) * (1 - sv.frametime * sv_friction.value);
-		if (f > 0)
-			f /= VectorLength(host_client->edict->fields.server->velocity);
-		else
-			f = 0;
-		VectorScale(host_client->edict->fields.server->velocity, f, host_client->edict->fields.server->velocity);
-
-		// water acceleration
-		if (wishspeed <= f)
-			return;
-
-		f = wishspeed - f;
-		limit = sv_accelerate.value * wishspeed * sv.frametime;
-		if (f > limit)
-			f = limit;
-		limit = VectorLength(wishvel);
-		if (limit)
-			f /= limit;
-		VectorMA(host_client->edict->fields.server->velocity, f, wishvel, host_client->edict->fields.server->velocity);
-		return;
-	}
-
-	// if not flying, move horizontally only
-	if (host_client->edict->fields.server->movetype != MOVETYPE_FLY)
-	{
-		VectorClear(wishvel);
-		wishvel[1] = host_client->edict->fields.server->v_angle[1];
-		AngleVectors(wishvel, v_forward, v_right, v_up);
-	}
-
-	// hack to not let you back into teleporter
-	VectorScale(v_right, host_client->cmd.sidemove, wishvel);
-	if (sv.time >= host_client->edict->fields.server->teleport_time || host_client->cmd.forwardmove > 0)
-		VectorMA(wishvel, host_client->cmd.forwardmove, v_forward, wishvel);
-	if (host_client->edict->fields.server->movetype != MOVETYPE_WALK)
-		wishvel[2] += cmd.upmove;
-
-	VectorCopy(wishvel, wishdir);
-	VectorNormalize(wishdir);
-	wishspeed = VectorLength(wishvel);
-	if (wishspeed > sv_maxspeed.value)
-		wishspeed = sv_maxspeed.value;
-
-	if (host_client->edict->fields.server->movetype == MOVETYPE_NOCLIP || host_client->edict->fields.server->movetype == MOVETYPE_FLY)
-	{
-		VectorScale(wishdir, wishspeed, host_client->edict->fields.server->velocity);
-		return;
-	}
-
-	if ((int)host_client->edict->fields.server->flags & FL_ONGROUND) // walking
-	{
-		// friction
-		f = 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 (f)
-		{
-			f = sqrt(f);
-			VectorCopy(host_client->edict->fields.server->velocity, v);
-			v[2] = 0;
-
-			// if the leading edge is over a dropoff, increase friction
-			limit = 16.0f / f;
-			VectorMA(host_client->edict->fields.server->origin, limit, v, v);
-			v[2] += host_client->edict->fields.server->mins[2];
-
-			VectorCopy(v, start);
-			VectorCopy(v, stop);
-			stop[2] -= 34;
-			trace = SV_Move(start, vec3_origin, vec3_origin, stop, MOVE_NOMONSTERS, host_client->edict);
-
-			// apply friction
-			if (f < sv_stopspeed.value)
-				f = sv_stopspeed.value / f;
-			else
-				f = 1;
-			if (trace.fraction == 1)
-				f *= sv_edgefriction.value;
-			f = 1 - sv.frametime * f * sv_friction.value;
-
-			if (f < 0)
-				f = 0;
-			VectorScale(host_client->edict->fields.server->velocity, f, host_client->edict->fields.server->velocity);
-		}
-	}
-	else // airborn
-		wishspeed = min(wishspeed, 30);
-
-	// ground or air acceleration
-	f = wishspeed - DotProduct(host_client->edict->fields.server->velocity, wishdir);
-	if (f > 0)
-	{
-		limit = sv_accelerate.value * sv.frametime * wishspeed;
-		if (f > limit)
-			f = limit;
-		VectorMA(host_client->edict->fields.server->velocity, f, wishdir, host_client->edict->fields.server->velocity);
-	}
-}
-#endif
-
 /*
 ===================
 SV_ReadClientMove
 ===================
 */
-qboolean SV_ReadClientMove (void)
+int sv_numreadmoves = 0;
+usercmd_t sv_readmoves[CL_MAX_USERCMDS];
+void SV_ReadClientMove (void)
 {
-	qboolean kickplayer = false;
 	int i;
-	double oldmovetime;
-	usercmd_t *move = &host_client->cmd;
-
-	SV_VM_Begin();
+	usercmd_t newmove;
+	usercmd_t *move = &newmove;
 
-	oldmovetime = move->time;
+	// reset stale client move state if a level change has occurred
+	if (host_client->cmd.receivetime > sv.time + 0.1 || !host_client->spawned)
+	{
+		memset(&host_client->cmd, 0, sizeof(host_client->cmd));
+		host_client->movesequence = 0;
+#ifdef NUM_PING_TIMES
+		for (i=0;i < NUM_PING_TIMES;i++)
+			host_client->ping_times[i] = 0;
+		host_client->num_pings = 0;
+#endif
+		host_client->ping = 0;
+		host_client->clmovement_disabletimeout = realtime + 0.1;
+	}
 
-	// if this move has been applied, clear it, and start accumulating new data
-	if (move->applied)
-		memset(move, 0, sizeof(*move));
+	memset(move, 0, sizeof(*move));
 
 	if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
 
@@ -624,7 +468,11 @@ qboolean SV_ReadClientMove (void)
 		move->sequence = MSG_ReadLong ();
 	move->time = MSG_ReadFloat ();
 	if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
-	move->receivetime = sv.time;
+	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++)
@@ -650,15 +498,13 @@ qboolean SV_ReadClientMove (void)
 	// 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 ();
+		move->buttons = MSG_ReadByte ();
 	else
-		move->buttons |= MSG_ReadLong ();
+		move->buttons = MSG_ReadLong ();
 	if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
 
 	// read impulse
-	i = MSG_ReadByte ();
-	if (i)
-		move->impulse = i;
+	move->impulse = MSG_ReadByte ();
 	if (msg_badread) Con_Printf("SV_ReadClientMessage: badread at %s:%i\n", __FILE__, __LINE__);
 
 	// PRYDON_CLIENTCURSOR
@@ -686,91 +532,157 @@ qboolean SV_ReadClientMove (void)
 		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;
+	}
+
+	// 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;
+
+	// 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;
+}
+
+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)
-		memset(move, 0, sizeof(*move));
-	else if (move->time > (float)sv.time + 0.001f) // add a little fuzz factor due to float precision issues
+		return;
+	if (sv_readmoves[sv_numreadmoves-1].sequence && sv_clmovement_enable.integer && sv_clmovement_waitforinput.integer > 0)
 	{
-		Con_DPrintf("client move->time %f > sv.time %f, kicking\n", move->time, sv.time);
-		// if the client is lying about time, we have definitively detected a
-		// speed cheat attempt of the worst sort, and we can immediately kick
-		// the offending player off.
-		// this fixes the timestamp to prevent a speed cheat from working
-		move->time = sv.time;
-		// but we kick the player for good measure
-		kickplayer = true;
+		// 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->cmd.sequence < move->sequence || moveindex == sv_numreadmoves - 1)
+			{
+				// this is a new move
+				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);
+				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 (moveframetime <= 0)
+					continue;
+				oldframetime = prog->globals.server->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
+				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;
+			}
+		}
 	}
 	else
 	{
-		// apply the latest accepted move to the entity fields
-		host_client->movesequence = move->sequence;
-		if (host_client->movesequence)
+		// 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++)
 		{
-			double frametime = bound(0, move->time - oldmovetime, 0.1);
-			double oldframetime = prog->globals.server->frametime;
-			//if (move->time - oldmovetime >= 0.1001)
-			//	Con_DPrintf("client move exceeds 100ms!  (time %f -> time %f)\n", oldmovetime, move->time);
-			prog->globals.server->frametime = frametime;
-			SV_Physics_ClientEntity(host_client->edict);
-			prog->globals.server->frametime = oldframetime;
+			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];
 	}
-	SV_VM_End();
-	return kickplayer;
+	host_client->movesequence = host_client->cmd.sequence;
+
+	// calculate average ping time
+	host_client->ping = host_client->cmd.receivetime - host_client->cmd.time;
+#ifdef NUM_PING_TIMES
+	host_client->ping_times[host_client->num_pings % NUM_PING_TIMES] = host_client->cmd.receivetime - host_client->cmd.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
 }
 
 void SV_ApplyClientMove (void)
 {
-#ifdef NUM_PING_TIMES
-	int i;
-	float total;
-#endif
 	prvm_eval_t *val;
 	usercmd_t *move = &host_client->cmd;
 
-	if (!move->receivetime || move->applied)
+	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;
 
-	// 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
-
 	// 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;
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button3))) val->_float = ((move->buttons >> 2) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button4))) val->_float = ((move->buttons >> 3) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button5))) val->_float = ((move->buttons >> 4) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button6))) val->_float = ((move->buttons >> 5) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button7))) val->_float = ((move->buttons >> 6) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button8))) val->_float = ((move->buttons >> 7) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button9))) val->_float = ((move->buttons >> 11) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button10))) val->_float = ((move->buttons >> 12) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button11))) val->_float = ((move->buttons >> 13) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button12))) val->_float = ((move->buttons >> 14) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button13))) val->_float = ((move->buttons >> 15) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button14))) val->_float = ((move->buttons >> 16) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button15))) val->_float = ((move->buttons >> 17) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.button16))) val->_float = ((move->buttons >> 18) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.buttonuse))) val->_float = ((move->buttons >> 8) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.buttonchat))) val->_float = ((move->buttons >> 9) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.cursor_active))) val->_float = ((move->buttons >> 10) & 1);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.movement))) VectorSet(val->vector, move->forwardmove, move->sidemove, move->upmove);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.cursor_screen))) VectorCopy(move->cursor_screen, val->vector);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.cursor_trace_start))) VectorCopy(move->cursor_start, val->vector);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.cursor_trace_endpos))) VectorCopy(move->cursor_impact, val->vector);
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.cursor_trace_ent))) val->edict = PRVM_EDICT_TO_PROG(PRVM_EDICT_NUM(move->cursor_entitynumber));
+	if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.ping))) val->_float = host_client->ping * 1000.0;
 }
 
 void SV_FrameLost(int framenum)
@@ -795,12 +707,14 @@ SV_ReadClientMessage
 ===================
 */
 extern void SV_SendServerinfo(client_t *client);
+extern sizebuf_t vm_tempstringsbuf;
 void SV_ReadClientMessage(void)
 {
-	int cmd, num;
+	int cmd, num, start;
 	char *s;
 
 	//MSG_BeginReading ();
+	sv_numreadmoves = 0;
 
 	for(;;)
 	{
@@ -818,10 +732,12 @@ void SV_ReadClientMessage(void)
 			return;
 		}
 
-		cmd = MSG_ReadChar ();
+		cmd = MSG_ReadByte ();
 		if (cmd == -1)
 		{
 			// end of message
+			// apply the moves that were read this frame
+			SV_ExecuteClientMoves();
 			break;
 		}
 
@@ -841,32 +757,17 @@ void SV_ReadClientMessage(void)
 			 || strncasecmp(s, "begin", 5) == 0
 			 || strncasecmp(s, "prespawn", 8) == 0)
 				Cmd_ExecuteString (s, src_client);
-			else if (SV_ParseClientCommandQC)
+			else if (prog->funcoffsets.SV_ParseClientCommand)
 			{
-				PRVM_G_INT(OFS_PARM0) = PRVM_SetEngineString(s);
+				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");
+				PRVM_ExecuteProgram (prog->funcoffsets.SV_ParseClientCommand, "QC function SV_ParseClientCommand is missing");
+				vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
 			}
-			else if (strncasecmp(s, "status", 6) == 0
-			 || strncasecmp(s, "name", 4) == 0
-			 || strncasecmp(s, "say", 3) == 0
-			 || strncasecmp(s, "say_team", 8) == 0
-			 || strncasecmp(s, "tell", 4) == 0
-			 || strncasecmp(s, "color", 5) == 0
-			 || strncasecmp(s, "kill", 4) == 0
-			 || strncasecmp(s, "pause", 5) == 0
-			 || strncasecmp(s, "kick", 4) == 0
-			 || strncasecmp(s, "ping", 4) == 0
-			 || strncasecmp(s, "ban", 3) == 0
-			 || strncasecmp(s, "pmodel", 6) == 0
-			 || strncasecmp(s, "rate", 4) == 0
-			 || strncasecmp(s, "playermodel", 11) == 0
-			 || strncasecmp(s, "playerskin", 10) == 0
-			 || (gamemode == GAME_NEHAHRA && (strncasecmp(s, "max", 3) == 0 || strncasecmp(s, "monster", 7) == 0 || strncasecmp(s, "scrag", 5) == 0 || strncasecmp(s, "gimme", 5) == 0 || strncasecmp(s, "wraith", 6) == 0))
-			 || (gamemode != GAME_NEHAHRA && (strncasecmp(s, "god", 3) == 0 || strncasecmp(s, "notarget", 8) == 0 || strncasecmp(s, "fly", 3) == 0 || strncasecmp(s, "give", 4) == 0 || strncasecmp(s, "noclip", 6) == 0)))
-				Cmd_ExecuteString (s, src_client);
 			else
-				Con_Printf("%s tried to %s\n", host_client->name, s);
+				Cmd_ExecuteString (s, src_client);
 			break;
 
 		case clc_disconnect:
@@ -874,9 +775,59 @@ void SV_ReadClientMessage(void)
 			return;
 
 		case clc_move:
-			// if ReadClientMove returns true, the client tried to speed cheat
-			if (SV_ReadClientMove ())
-				SV_DropClient (false);
+			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 = 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: