Ejemplo n.º 1
0
/*
==================
SV_WriteEntitiesToClient

==================
*/
void SV_WriteEntitiesToClient( sv_client_t *cl, sizebuf_t *msg )
{
	edict_t		*clent;
	edict_t		*viewent;	// may be NULL
	client_frame_t	*frame;
	entity_state_t	*state;
	static sv_ents_t	frame_ents;
	int		i, send_pings;

	clent = cl->edict;
	if(	!SV_IsValidEdict( clent ) )
	{
		SV_DropClient ( cl );
		return;
	}
	viewent = cl->pViewEntity;	// himself or trigger_camera

	frame = &cl->frames[cl->netchan.outgoing_sequence & SV_UPDATE_MASK];

	send_pings = SV_ShouldUpdatePing( cl );

	sv.net_framenum++;	// now all portal-through entities are invalidate
	sv.hostflags &= ~SVF_PORTALPASS;

	// clear everything in this snapshot
	frame_ents.num_entities = c_fullsend = 0;

	// add all the entities directly visible to the eye, which
	// may include portal entities that merge other viewpoints
	SV_AddEntitiesToPacket( viewent, clent, frame, &frame_ents );
   
	// if there were portals visible, there may be out of order entities
	// in the list which will need to be resorted for the delta compression
	// to work correctly.  This also catches the error condition
	// of an entity being included twice.
	qsort( frame_ents.entities, frame_ents.num_entities, sizeof( frame_ents.entities[0] ), SV_EntityNumbers );

	// copy the entity states out
	frame->num_entities = 0;
	frame->first_entity = svs.next_client_entities;

	for( i = 0; i < frame_ents.num_entities; i++ )
	{
		// add it to the circular packet_entities array
		state = &svs.packet_entities[svs.next_client_entities % svs.num_client_entities];
		*state = frame_ents.entities[i];
		svs.next_client_entities++;

		// this should never hit, map should always be restarted first in SV_Frame
		if( svs.next_client_entities >= 0x7FFFFFFE )
			Host_Error( "svs.next_client_entities wrapped\n" );
		frame->num_entities++;
	}

	SV_EmitPacketEntities( cl, frame, msg );
	SV_EmitEvents( cl, frame, msg );
	if( send_pings ) SV_EmitPings( msg );
}
Ejemplo n.º 2
0
/*
==================
SV_WriteSnapshotToClient
==================
*/
static void SV_WriteSnapshotToClient(client_t *client, msg_t *msg)
{
    clientSnapshot_t *frame, *oldframe;
    int lastframe;
    int i;
    int snapFlags;

    // this is the snapshot we are creating
    frame = &client->frames[client->netchan.outgoingSequence & PACKET_MASK];

    // try to use a previous frame as the source for delta compressing the snapshot
    if (client->deltaMessage <= 0 || client->state != CS_ACTIVE)
    {
        // client is asking for a retransmit
        oldframe = NULL;
        lastframe = 0;
    }
    else if (client->netchan.outgoingSequence - client->deltaMessage >= (PACKET_BACKUP - 3))
    {
        // client hasn't gotten a good message through in a long time
        Com_DPrintf("%s: Delta request from out of date packet.\n", client->name);
        oldframe = NULL;
        lastframe = 0;
    }
    else
    {
        // we have a valid snapshot to delta from
        oldframe = &client->frames[client->deltaMessage & PACKET_MASK];
        lastframe = client->netchan.outgoingSequence - client->deltaMessage;

        // the snapshot's entities may still have rolled off the buffer, though
        if (oldframe->first_entity <= svs.nextSnapshotEntities - svs.numSnapshotEntities)
        {
            Com_DPrintf("%s: Delta request from out of date entities.\n", client->name);
            oldframe = NULL;
            lastframe = 0;
        }
    }

    MSG_WriteByte(msg, svc_snapshot);

    // NOTE, MRE: now sent at the start of every message from server to client
    // let the client know which reliable clientCommands we have received
    // MSG_WriteLong( msg, client->lastClientCommand );

    // send over the current server time so the client can drift
    // its view of time to try to match
    if (client->oldServerTime)
    {
        // The server has not yet got an acknowledgement of the
        // new gamestate from this client, so continue to send it
        // a time as if the server has not restarted. Note from
        // the client's perspective this time is strictly speaking
        // incorrect, but since it'll be busy loading a map at
        // the time it doesn't really matter.
        MSG_WriteLong(msg, sv.time + client->oldServerTime);
    }
    else
    {
        MSG_WriteLong(msg, sv.time);
    }

    // what we are delta'ing from
    MSG_WriteByte(msg, lastframe);

    snapFlags = svs.snapFlagServerBit;
    if (client->rateDelayed)
    {
        snapFlags |= SNAPFLAG_RATE_DELAYED;
    }
    if (client->state != CS_ACTIVE)
    {
        snapFlags |= SNAPFLAG_NOT_ACTIVE;
    }

    MSG_WriteByte(msg, snapFlags);

    // send over the areabits
    MSG_WriteByte(msg, frame->areabytes);
    MSG_WriteData(msg, frame->areabits, frame->areabytes);

    // delta encode the playerstate
    if (oldframe)
    {
        MSG_WriteDeltaPlayerstate(client->netchan.alternateProtocol, msg, &oldframe->ps, &frame->ps);
    }
    else
    {
        MSG_WriteDeltaPlayerstate(client->netchan.alternateProtocol, msg, NULL, &frame->ps);
    }

    // delta encode the entities
    SV_EmitPacketEntities(client->netchan.alternateProtocol, oldframe, frame, msg);

    // padding for rate debugging
    if (sv_padPackets->integer)
    {
        for (i = 0; i < sv_padPackets->integer; i++)
        {
            MSG_WriteByte(msg, svc_nop);
        }
    }
}
Ejemplo n.º 3
0
/*
==================
SV_WriteSnapshotToClient
==================
*/
static void SV_WriteSnapshotToClient( client_t *client, msg_t *msg ) {
	clientSnapshot_t	*frame, *oldframe;
	int					lastframe;
	int					snapFlags;

	// this is the snapshot we are creating
	frame = &client->frames[ client->netchan.outgoingSequence & PACKET_MASK ];

	// try to use a previous frame as the source for delta compressing the snapshot
	if ( client->deltaMessage <= 0 || client->state != CS_ACTIVE ) {
		// client is asking for a retransmit
		oldframe = NULL;
		lastframe = 0;
	} else if ( client->netchan.outgoingSequence - client->deltaMessage 
		>= (PACKET_BACKUP - 3) ) {
		// client hasn't gotten a good message through in a long time
		Com_DPrintf ("%s: Delta request from out of date packet.\n", client->name);
		oldframe = NULL;
		lastframe = 0;
	} else {
		// we have a valid snapshot to delta from
		oldframe = &client->frames[ client->deltaMessage & PACKET_MASK ];
		lastframe = client->netchan.outgoingSequence - client->deltaMessage;

		// the snapshot's entities may still have rolled off the buffer, though
		if ( oldframe->first_entity <= svs.nextSnapshotEntities - svs.numSnapshotEntities ) {
			Com_DPrintf ("%s: Delta request from out of date entities.\n", client->name);
			oldframe = NULL;
			lastframe = 0;
		}
	}

	MSG_WriteByte (msg, svc_snapshot);

	// let the client know which reliable clientCommands we have received
	MSG_WriteLong( msg, client->lastClientCommand );

	// send over the current server time so the client can drift
	// its view of time to try to match
	MSG_WriteLong (msg, sv.time);

	// we must write a message number, because recorded demos won't have
	// the same network message sequences
	MSG_WriteLong (msg, client->netchan.outgoingSequence );
	MSG_WriteByte (msg, lastframe);				// what we are delta'ing from
	MSG_WriteLong (msg, client->cmdNum);		// we have executed up to here

	snapFlags = client->rateDelayed | ( client->droppedCommands << 1 );
	client->droppedCommands = 0;

	MSG_WriteByte (msg, snapFlags);

	// send over the areabits
	MSG_WriteByte (msg, frame->areabytes);
	MSG_WriteData (msg, frame->areabits, frame->areabytes);

	// delta encode the playerstate
	if ( oldframe ) {
		MSG_WriteDeltaPlayerstate( msg, &oldframe->ps, &frame->ps );
	} else {
		MSG_WriteDeltaPlayerstate( msg, NULL, &frame->ps );
	}

	// delta encode the entities
	SV_EmitPacketEntities (oldframe, frame, msg);
}
Ejemplo n.º 4
0
/*
==================
SV_WriteSnapshotToClient
==================
*/
static void SV_WriteSnapshotToClient( client_t *client, msg_t *msg ) {
	clientSnapshot_t	*frame, *oldframe;
	int					lastframe;
	int					i;
	int					snapFlags;

	// this is the snapshot we are creating
	frame = &client->frames[ client->netchan.outgoingSequence & PACKET_MASK ];

	// try to use a previous frame as the source for delta compressing the snapshot
	if ( client->deltaMessage <= 0 || client->state != CS_ACTIVE ) {
		// client is asking for a retransmit
		oldframe = NULL;
		lastframe = 0;
	} else if ( client->netchan.outgoingSequence - client->deltaMessage 
		>= (PACKET_BACKUP - 3) ) {
		// client hasn't gotten a good message through in a long time
		Com_DPrintf ("%s: Delta request from out of date packet.\n", client->name);
		oldframe = NULL;
		lastframe = 0;
	} else {
		// we have a valid snapshot to delta from
		oldframe = &client->frames[ client->deltaMessage & PACKET_MASK ];
		lastframe = client->netchan.outgoingSequence - client->deltaMessage;

		// the snapshot's entities may still have rolled off the buffer, though
		if ( oldframe->first_entity <= svs.nextSnapshotEntities - svs.numSnapshotEntities ) {
			Com_DPrintf ("%s: Delta request from out of date entities.\n", client->name);
			oldframe = NULL;
			lastframe = 0;
		}
	}

	MSG_WriteByte (msg, svc_snapshot);

	// NOTE, MRE: now sent at the start of every message from server to client
	// let the client know which reliable clientCommands we have received
	//MSG_WriteLong( msg, client->lastClientCommand );

	// send over the current server time so the client can drift
	// its view of time to try to match
	MSG_WriteLong (msg, svs.time);

	// what we are delta'ing from
	MSG_WriteByte (msg, lastframe);

	snapFlags = svs.snapFlagServerBit;
	if ( client->rateDelayed ) {
		snapFlags |= SNAPFLAG_RATE_DELAYED;
	}
	if ( client->state != CS_ACTIVE ) {
		snapFlags |= SNAPFLAG_NOT_ACTIVE;
	}

	MSG_WriteByte (msg, snapFlags);

	// send over the areabits
	MSG_WriteByte (msg, frame->areabytes);
	MSG_WriteData (msg, frame->areabits, frame->areabytes);

	// delta encode the playerstate
	if ( oldframe ) {
#ifdef _ONEBIT_COMBO
		MSG_WriteDeltaPlayerstate( msg, &oldframe->ps, &frame->ps, frame->pDeltaOneBit, frame->pDeltaNumBit );
#else
		MSG_WriteDeltaPlayerstate( msg, &oldframe->ps, &frame->ps );
#endif
		if (frame->ps.m_iVehicleNum)
		{ //then write the vehicle's playerstate too
			if (!oldframe->ps.m_iVehicleNum)
			{ //if last frame didn't have vehicle, then the old vps isn't gonna delta
				//properly (because our vps on the client could be anything)
#ifdef _ONEBIT_COMBO
				MSG_WriteDeltaPlayerstate( msg, NULL, &frame->vps, NULL, NULL, qtrue );
#else
				MSG_WriteDeltaPlayerstate( msg, NULL, &frame->vps, qtrue );
#endif
			}
			else
			{
#ifdef _ONEBIT_COMBO
				MSG_WriteDeltaPlayerstate( msg, &oldframe->vps, &frame->vps, frame->pDeltaOneBitVeh, frame->pDeltaNumBitVeh, qtrue );
#else
				MSG_WriteDeltaPlayerstate( msg, &oldframe->vps, &frame->vps, qtrue );
#endif
			}
		}
	} else {
#ifdef _ONEBIT_COMBO
		MSG_WriteDeltaPlayerstate( msg, NULL, &frame->ps, NULL, NULL );
#else
		MSG_WriteDeltaPlayerstate( msg, NULL, &frame->ps );
#endif
		if (frame->ps.m_iVehicleNum)
		{ //then write the vehicle's playerstate too
#ifdef _ONEBIT_COMBO
			MSG_WriteDeltaPlayerstate( msg, NULL, &frame->vps, NULL, NULL, qtrue );
#else
			MSG_WriteDeltaPlayerstate( msg, NULL, &frame->vps, qtrue );
#endif
		}
	}

	// delta encode the entities
	SV_EmitPacketEntities (oldframe, frame, msg);

	// padding for rate debugging
	if ( sv_padPackets->integer ) {
		for ( i = 0 ; i < sv_padPackets->integer ; i++ ) {
			MSG_WriteByte (msg, svc_nop);
		}
	}
}
Ejemplo n.º 5
0
/*
==================
SV_WriteSnapshotToClient
==================
*/
static void SV_WriteSnapshotToClient( client_t *client, msg_t *msg ) {
	clientSnapshot_t	*frame, *oldframe;
	int					lastframe;
	int					i;
	int					snapFlags;
	int					deltaMessage;

	// this is the snapshot we are creating
	frame = &client->frames[ client->netchan.outgoingSequence & PACKET_MASK ];

	// bots never acknowledge, but it doesn't matter since the only use case is for serverside demos
	// in which case we can delta against the very last message every time
	deltaMessage = client->deltaMessage;
	if ( client->demo.isBot ) {
		client->deltaMessage = client->netchan.outgoingSequence;
	}

	// try to use a previous frame as the source for delta compressing the snapshot
	if ( deltaMessage <= 0 || client->state != CS_ACTIVE ) {
		// client is asking for a retransmit
		oldframe = NULL;
		lastframe = 0;
	} else if ( client->netchan.outgoingSequence - deltaMessage
		>= (PACKET_BACKUP - 3) ) {
		// client hasn't gotten a good message through in a long time
		Com_DPrintf ("%s: Delta request from out of date packet.\n", client->name);
		oldframe = NULL;
		lastframe = 0;
	} else if ( client->demo.demorecording && client->demo.demowaiting ) {
		// demo is waiting for a non-delta-compressed frame for this client, so don't delta compress
		oldframe = NULL;
		lastframe = 0;
	} else if ( client->demo.minDeltaFrame > deltaMessage ) {
		// we saved a non-delta frame to the demo and sent it to the client, but the client didn't ack it
		// we can't delta against an old frame that's not in the demo without breaking the demo.  so send
		// non-delta frames until the client acks.
		oldframe = NULL;
		lastframe = 0;
	} else {
		// we have a valid snapshot to delta from
		oldframe = &client->frames[ deltaMessage & PACKET_MASK ];
		lastframe = client->netchan.outgoingSequence - deltaMessage;

		// the snapshot's entities may still have rolled off the buffer, though
		if ( oldframe->first_entity <= svs.nextSnapshotEntities - svs.numSnapshotEntities ) {
			Com_DPrintf ("%s: Delta request from out of date entities.\n", client->name);
			oldframe = NULL;
			lastframe = 0;
		}
	}

	if ( oldframe == NULL ) {
		if ( client->demo.demowaiting ) {
			// this is a non-delta frame, so we can delta against it in the demo
			client->demo.minDeltaFrame = client->netchan.outgoingSequence;
		}
		client->demo.demowaiting = qfalse;
	}

	MSG_WriteByte (msg, svc_snapshot);

	// NOTE, MRE: now sent at the start of every message from server to client
	// let the client know which reliable clientCommands we have received
	//MSG_WriteLong( msg, client->lastClientCommand );

	// send over the current server time so the client can drift
	// its view of time to try to match
	if( client->oldServerTime &&
		!( client->demo.demorecording && client->demo.isBot ) ) {
		// The server has not yet got an acknowledgement of the
		// new gamestate from this client, so continue to send it
		// a time as if the server has not restarted. Note from
		// the client's perspective this time is strictly speaking
		// incorrect, but since it'll be busy loading a map at
		// the time it doesn't really matter.
		MSG_WriteLong (msg, sv.time + client->oldServerTime);
	} else {
		MSG_WriteLong (msg, sv.time);
	}

	// what we are delta'ing from
	MSG_WriteByte (msg, lastframe);

	snapFlags = svs.snapFlagServerBit;
	if ( client->rateDelayed ) {
		snapFlags |= SNAPFLAG_RATE_DELAYED;
	}
	if ( client->state != CS_ACTIVE ) {
		snapFlags |= SNAPFLAG_NOT_ACTIVE;
	}

	MSG_WriteByte (msg, snapFlags);

	// send over the areabits
	MSG_WriteByte (msg, frame->areabytes);
	MSG_WriteData (msg, frame->areabits, frame->areabytes);

	// delta encode the playerstate
	if ( oldframe ) {
#ifdef _ONEBIT_COMBO
		MSG_WriteDeltaPlayerstate( msg, &oldframe->ps, &frame->ps, frame->pDeltaOneBit, frame->pDeltaNumBit );
#else
		MSG_WriteDeltaPlayerstate( msg, &oldframe->ps, &frame->ps );
#endif
		if (frame->ps.m_iVehicleNum)
		{ //then write the vehicle's playerstate too
			if (!oldframe->ps.m_iVehicleNum)
			{ //if last frame didn't have vehicle, then the old vps isn't gonna delta
				//properly (because our vps on the client could be anything)
#ifdef _ONEBIT_COMBO
				MSG_WriteDeltaPlayerstate( msg, NULL, &frame->vps, NULL, NULL, qtrue );
#else
				MSG_WriteDeltaPlayerstate( msg, NULL, &frame->vps, qtrue );
#endif
			}
			else
			{
#ifdef _ONEBIT_COMBO
				MSG_WriteDeltaPlayerstate( msg, &oldframe->vps, &frame->vps, frame->pDeltaOneBitVeh, frame->pDeltaNumBitVeh, qtrue );
#else
				MSG_WriteDeltaPlayerstate( msg, &oldframe->vps, &frame->vps, qtrue );
#endif
			}
		}
	} else {
#ifdef _ONEBIT_COMBO
		MSG_WriteDeltaPlayerstate( msg, NULL, &frame->ps, NULL, NULL );
#else
		MSG_WriteDeltaPlayerstate( msg, NULL, &frame->ps );
#endif
		if (frame->ps.m_iVehicleNum)
		{ //then write the vehicle's playerstate too
#ifdef _ONEBIT_COMBO
			MSG_WriteDeltaPlayerstate( msg, NULL, &frame->vps, NULL, NULL, qtrue );
#else
			MSG_WriteDeltaPlayerstate( msg, NULL, &frame->vps, qtrue );
#endif
		}
	}

	// delta encode the entities
	SV_EmitPacketEntities (oldframe, frame, msg);

	// padding for rate debugging
	if ( sv_padPackets->integer ) {
		for ( i = 0 ; i < sv_padPackets->integer ; i++ ) {
			MSG_WriteByte (msg, svc_nop);
		}
	}
}
Ejemplo n.º 6
0
/*
==================
SV_WriteSnapshotToClient
==================
*/
static void SV_WriteSnapshotToClient(client_t *client, msg_t *msg)
{
	clientSnapshot_t *frame, *oldframe;
	int              lastframe;
	int              snapFlags;

	// this is the snapshot we are creating
	frame = &client->frames[client->netchan.outgoingSequence & PACKET_MASK];

	// try to use a previous frame as the source for delta compressing the snapshot
	if (client->deltaMessage <= 0 || client->state != CS_ACTIVE)
	{
		// client is asking for a retransmit
		oldframe  = NULL;
		lastframe = 0;
	}
	else if (client->netchan.outgoingSequence - client->deltaMessage >= (PACKET_BACKUP - 3))
	{
		// client hasn't gotten a good message through in a long time
		Com_DPrintf("%s: Delta request from out of date packet.\n", client->name);
		oldframe  = NULL;
		lastframe = 0;
	}
	else
	{
		// we have a valid snapshot to delta from
		oldframe  = &client->frames[client->deltaMessage & PACKET_MASK];
		lastframe = client->netchan.outgoingSequence - client->deltaMessage;

		// the snapshot's entities may still have rolled off the buffer, though
		if (oldframe->first_entity <= svs.nextSnapshotEntities - svs.numSnapshotEntities)
		{
			Com_DPrintf("%s: Delta request from out of date entities.\n", client->name);
			oldframe  = NULL;
			lastframe = 0;
		}
	}

	MSG_WriteByte(msg, svc_snapshot);

	// NOTE, MRE: now sent at the start of every message from server to client
	// let the client know which reliable clientCommands we have received
	//MSG_WriteLong( msg, client->lastClientCommand );

	// send over the current server time so the client can drift
	// its view of time to try to match
	MSG_WriteLong(msg, svs.time);

	// what we are delta'ing from
	MSG_WriteByte(msg, lastframe);

	snapFlags = svs.snapFlagServerBit;
	if (client->rateDelayed)
	{
		snapFlags |= SNAPFLAG_RATE_DELAYED;
	}
	if (client->state != CS_ACTIVE)
	{
		snapFlags |= SNAPFLAG_NOT_ACTIVE;
	}

	MSG_WriteByte(msg, snapFlags);

	// send over the areabits
	MSG_WriteByte(msg, frame->areabytes);
	MSG_WriteData(msg, frame->areabits, frame->areabytes);

	//{
	//int sz = msg->cursize;
	//int usz = msg->uncompsize;

	// delta encode the playerstate
	if (oldframe)
	{
		MSG_WriteDeltaPlayerstate(msg, &oldframe->ps, &frame->ps);
	}
	else
	{
		MSG_WriteDeltaPlayerstate(msg, NULL, &frame->ps);
	}

	//Com_Printf( "Playerstate delta size: %f\n", ((msg->cursize - sz) * sv_fps->integer) / 8.f );
	//}

	// delta encode the entities
	SV_EmitPacketEntities(oldframe, frame, msg);

	// padding for rate debugging
	if (sv_padPackets->integer)
	{
		int i;

		for (i = 0 ; i < sv_padPackets->integer ; i++)
		{
			MSG_WriteByte(msg, svc_nop);
		}
	}
}
Ejemplo n.º 7
0
/*
==================
SV_WriteFrameToClient
==================
*/
void SV_WriteFrameToClient( sv_client_t *cl, sizebuf_t *msg )
{
	client_frame_t	*frame, *oldframe;
	int		lastframe;

	// this is the frame we are creating
	frame = &cl->frames[sv.framenum & SV_UPDATE_MASK];

	if( cl->lastframe <= 0 )
	{	
		// client is asking for a retransmit
		oldframe = NULL;
		lastframe = -1;
	}
	else if( sv.framenum - cl->lastframe >= (SV_UPDATE_BACKUP - 3))
	{
		// client hasn't gotten a good message through in a long time
		oldframe = NULL;
		lastframe = -1;
	}
	else
	{	// we have a valid message to delta from
		oldframe = &cl->frames[cl->lastframe & SV_UPDATE_MASK];
		lastframe = cl->lastframe;

		// the snapshot's entities may still have rolled off the buffer, though
		if( oldframe->first_entity <= svs.next_client_entities - svs.num_client_entities )
		{
			MsgDev( D_WARN, "%s: ^7delta request from out of date entities.\n", cl->name );
			oldframe = NULL;
			lastframe = 0;
		}
	}

	// refresh physinfo if needs
	if( cl->physinfo_modified )
	{
		cl->physinfo_modified = false;
		MSG_WriteByte( msg, svc_physinfo );
		MSG_WriteString( msg, cl->physinfo );
	}

	// delta encode the events
	SV_EmitEvents( cl, frame, msg );

	MSG_WriteByte( msg, svc_frame );
	MSG_WriteLong( msg, sv.framenum );
	MSG_WriteLong( msg, sv.time );		// send a servertime each frame
	MSG_WriteLong( msg, sv.frametime );
	MSG_WriteLong( msg, lastframe );		// what we are delta'ing from
	MSG_WriteByte( msg, cl->surpressCount );	// rate dropped packets
	MSG_WriteByte( msg, frame->index );		// send a client index
	cl->surpressCount = 0;

	// send over the areabits
	MSG_WriteByte( msg, frame->areabits_size );	// never more than 255 bytes
	MSG_WriteData( msg, frame->areabits, frame->areabits_size );

	// delta encode the entities
	SV_EmitPacketEntities( oldframe, frame, msg );
}