void Delta_ParseTableField( sizebuf_t *msg )
{
int tableIndex, nameIndex;
float mul = 1.0f, post_mul = 1.0f;
int flags, bits;
const char *pName;
delta_info_t *dt;
tableIndex = BF_ReadUBitLong( msg, 4 );
dt = Delta_FindStructByIndex( tableIndex );
if( !dt )
Host_Error( "Delta_ParseTableField: not initialized" );
nameIndex = BF_ReadUBitLong( msg, 8 ); // read field name index
if( !( nameIndex >= 0 && nameIndex < dt->maxFields ) )
Host_Error( "Delta_ParseTableField: wrong nameIndex" );
pName = dt->pInfo[nameIndex].name;
flags = BF_ReadUBitLong( msg, 10 );
bits = BF_ReadUBitLong( msg, 5 ) + 1;
// read the multipliers
if( BF_ReadOneBit( msg ))
mul = BF_ReadFloat( msg );
if( BF_ReadOneBit( msg ))
post_mul = BF_ReadFloat( msg );
// delta encoders it's already initialized on this machine (local game)
if( delta_init ) return;
// add field to table
Delta_AddField( dt->pName, pName, flags, bits, mul, post_mul );
}
/*
================
CL_UpdateUserinfo
collect userinfo from all players
================
*/
void CL_UpdateUserinfo( sizebuf_t *msg )
{
int slot;
qboolean active;
player_info_t *player;
slot = BF_ReadUBitLong( msg, MAX_CLIENT_BITS );
if( slot >= MAX_CLIENTS )
Host_Error( "CL_ParseServerMessage: svc_updateuserinfo > MAX_CLIENTS\n" );
player = &cl.players[slot];
active = BF_ReadOneBit( msg ) ? true : false;
if( active )
{
Q_strncpy( player->userinfo, BF_ReadString( msg ), sizeof( player->userinfo ));
Q_strncpy( player->name, Info_ValueForKey( player->userinfo, "name" ), sizeof( player->name ));
Q_strncpy( player->model, Info_ValueForKey( player->userinfo, "model" ), sizeof( player->model ));
cl.playermodels[slot] = 0;
player->topcolor = Q_atoi( Info_ValueForKey( player->userinfo, "topcolor" ));
player->bottomcolor = Q_atoi( Info_ValueForKey( player->userinfo, "bottomcolor" ));
if( slot == cl.playernum ) Q_memcpy( &menu.playerinfo, player, sizeof( player_info_t ));
}
else Q_memset( player, 0, sizeof( *player ));
}
/*
=============
CL_ParseReliableEvent
=============
*/
void CL_ParseReliableEvent( sizebuf_t *msg )
{
int event_index;
event_args_t nullargs, args;
float delay = 0.0f;
cl_entity_t *pEnt;
Q_memset( &nullargs, 0, sizeof( nullargs ));
event_index = BF_ReadUBitLong( msg, MAX_EVENT_BITS );
if( BF_ReadOneBit( msg ))
delay = (float)BF_ReadWord( msg ) * (1.0f / 100.0f);
// reliable events not use delta-compression just null-compression
MSG_ReadDeltaEvent( msg, &nullargs, &args );
if(( pEnt = CL_GetEntityByIndex( args.entindex )) != NULL )
{
if( VectorIsNull( args.origin ))
VectorCopy( pEnt->curstate.origin, args.origin );
if( VectorIsNull( args.angles ))
VectorCopy( pEnt->curstate.angles, args.angles );
if( VectorIsNull( args.velocity ))
VectorCopy( pEnt->curstate.velocity, args.velocity );
}
CL_QueueEvent( FEV_RELIABLE|FEV_SERVER, event_index, delay, &args );
}
/*
================
CL_UpdateUserPings
collect pings and packet lossage from clients
================
*/
void CL_UpdateUserPings( sizebuf_t *msg )
{
int i, slot;
player_info_t *player;
for( i = 0; i < MAX_CLIENTS; i++ )
{
if( !BF_ReadOneBit( msg )) break; // end of message
slot = BF_ReadUBitLong( msg, MAX_CLIENT_BITS );
if( slot >= MAX_CLIENTS )
Host_Error( "CL_ParseServerMessage: svc_updatepings > MAX_CLIENTS\n" );
player = &cl.players[slot];
player->ping = BF_ReadUBitLong( msg, 12 );
player->packet_loss = BF_ReadUBitLong( msg, 7 );
}
}
/*
================
CL_PrecacheEvent
prceache event from server
================
*/
void CL_PrecacheEvent( sizebuf_t *msg )
{
int eventIndex;
eventIndex = BF_ReadUBitLong( msg, MAX_EVENT_BITS );
if( eventIndex < 0 || eventIndex >= MAX_EVENTS )
Host_Error( "CL_PrecacheEvent: bad eventindex %i\n", eventIndex );
Q_strncpy( cl.event_precache[eventIndex], BF_ReadString( msg ), sizeof( cl.event_precache[0] ));
// can be set now
CL_SetEventIndex( cl.event_precache[eventIndex], eventIndex );
}
/*
================
CL_PrecacheSound
prceache sound from server
================
*/
void CL_PrecacheSound( sizebuf_t *msg )
{
int soundIndex;
soundIndex = BF_ReadUBitLong( msg, MAX_SOUND_BITS );
if( soundIndex < 0 || soundIndex >= MAX_SOUNDS )
Host_Error( "CL_PrecacheSound: bad soundindex %i\n", soundIndex );
Q_strncpy( cl.sound_precache[soundIndex], BF_ReadString( msg ), sizeof( cl.sound_precache[0] ));
// when we loading map all resources is precached sequentially
if( !cl.audio_prepped ) return;
cl.sound_index[soundIndex] = S_RegisterSound( cl.sound_precache[soundIndex] );
}
/*
================
CL_PrecacheModel
prceache model from server
================
*/
void CL_PrecacheModel( sizebuf_t *msg )
{
int modelIndex;
modelIndex = BF_ReadUBitLong( msg, MAX_MODEL_BITS );
if( modelIndex < 0 || modelIndex >= MAX_MODELS )
Host_Error( "CL_PrecacheModel: bad modelindex %i\n", modelIndex );
Q_strncpy( cl.model_precache[modelIndex], BF_ReadString( msg ), sizeof( cl.model_precache[0] ));
// when we loading map all resources is precached sequentially
if( !cl.video_prepped ) return;
Mod_RegisterModel( cl.model_precache[modelIndex], modelIndex );
}
/*
===================
CL_ParseClientData
===================
*/
void CL_ParseClientData( sizebuf_t *msg )
{
int i, j;
clientdata_t *from_cd, *to_cd;
weapon_data_t *from_wd, *to_wd;
weapon_data_t nullwd[32];
clientdata_t nullcd;
frame_t *frame;
int idx;
// this is the frame update that this message corresponds to
i = cls.netchan.incoming_sequence;
// did we drop some frames?
if( i > cl.last_incoming_sequence + 1 )
{
// mark as dropped
for( j = cl.last_incoming_sequence + 1; j < i; j++ )
{
if( cl.frames[j & CL_UPDATE_MASK].receivedtime >= 0.0 )
{
cl.frames[j & CL_UPDATE_MASK].receivedtime = -1;
cl.frames[j & CL_UPDATE_MASK].latency = 0;
}
}
}
cl.parsecount = i; // ack'd incoming messages.
cl.parsecountmod = cl.parsecount & CL_UPDATE_MASK; // index into window.
frame = &cl.frames[cl.parsecountmod]; // frame at index.
frame->time = cl.mtime[0]; // mark network received time
frame->receivedtime = host.realtime; // time now that we are parsing.
if( cl.last_command_ack != -1 )
{
int last_predicted;
entity_state_t * ps;
entity_state_t * pps;
clientdata_t * pcd;
clientdata_t * ppcd;
weapon_data_t * wd;
weapon_data_t * pwd;
last_predicted = ( cl.last_incoming_sequence + (
cls.netchan.incoming_acknowledged - cl.last_command_ack)) & CL_UPDATE_MASK;
pps = &cl.predict[last_predicted].playerstate;
ppcd = &cl.predict[last_predicted].client;
pwd = cl.predict[last_predicted].weapondata;
ps = &frame->playerstate[cl.playernum];
pcd = &frame->local.client;
wd = frame->local.weapondata;
clgame.dllFuncs.pfnTxferPredictionData( ps, pps, pcd, ppcd, wd, pwd );
}
// do this after all packets read for this frame?
cl.last_command_ack = cls.netchan.incoming_acknowledged;
cl.last_incoming_sequence = cls.netchan.incoming_sequence;
if( hltv->integer ) return; // clientdata for spectators ends here
to_cd = &frame->local.client;
to_wd = frame->local.weapondata;
// clear to old value before delta parsing
if( !BF_ReadOneBit( msg ))
{
Q_memset( &nullcd, 0, sizeof( nullcd ));
Q_memset( nullwd, 0, sizeof( nullwd ));
from_cd = &nullcd;
from_wd = nullwd;
}
else
{
int delta_sequence = BF_ReadByte( msg );
from_cd = &cl.frames[delta_sequence & CL_UPDATE_MASK].local.client;
from_wd = cl.frames[delta_sequence & CL_UPDATE_MASK].local.weapondata;
}
MSG_ReadClientData( msg, from_cd, to_cd, cl.mtime[0] );
for( i = 0; i < MAX_WEAPONS; i++ )
{
// check for end of weapondata (and clientdata_t message)
if( !BF_ReadOneBit( msg )) break;
// read the weapon idx
idx = BF_ReadUBitLong( msg, MAX_WEAPON_BITS );
MSG_ReadWeaponData( msg, &from_wd[idx], &to_wd[idx], cl.mtime[0] );
}
}
/*
=============
CL_ParseEvent
=============
*/
void CL_ParseEvent( sizebuf_t *msg )
{
int event_index;
int i, num_events;
int packet_ent;
event_args_t nullargs, args;
qboolean has_update;
entity_state_t *state;
cl_entity_t *pEnt;
float delay;
Q_memset( &nullargs, 0, sizeof( nullargs ));
num_events = BF_ReadUBitLong( msg, 5 );
// parse events queue
for( i = 0 ; i < num_events; i++ )
{
event_index = BF_ReadUBitLong( msg, MAX_EVENT_BITS );
Q_memset( &args, 0, sizeof( args ));
has_update = false;
if( BF_ReadOneBit( msg ))
{
packet_ent = BF_ReadUBitLong( msg, MAX_ENTITY_BITS );
if( BF_ReadOneBit( msg ))
{
MSG_ReadDeltaEvent( msg, &nullargs, &args );
has_update = true;
}
}
else packet_ent = -1;
if( packet_ent != -1 )
state = &cls.packet_entities[(cl.frame.first_entity+packet_ent)%cls.num_client_entities];
else state = NULL;
// it's a client. Override some params
if( args.entindex >= 1 && args.entindex <= cl.maxclients )
{
if(( args.entindex - 1 ) == cl.playernum )
{
if( state && !CL_IsPredicted( ))
{
// restore viewangles from angles
args.angles[PITCH] = -state->angles[PITCH] * 3;
args.angles[YAW] = state->angles[YAW];
args.angles[ROLL] = 0; // no roll
}
else
{
// get the predicted angles
VectorCopy( cl.refdef.cl_viewangles, args.angles );
}
VectorCopy( cl.frame.local.client.origin, args.origin );
VectorCopy( cl.frame.local.client.velocity, args.velocity );
}
else if( state )
{
// restore viewangles from angles
args.angles[PITCH] = -state->angles[PITCH] * 3;
args.angles[YAW] = state->angles[YAW];
args.angles[ROLL] = 0; // no roll
// if we restore origin and velocity everytime, why don't do it here also?
if( VectorIsNull( args.origin ))
VectorCopy( state->origin, args.origin );
if( VectorIsNull( args.velocity ))
VectorCopy( state->velocity, args.velocity );
}
}
else if( state )
{
if( VectorIsNull( args.origin ))
VectorCopy( state->origin, args.origin );
if( VectorIsNull( args.angles ))
VectorCopy( state->angles, args.angles );
if( VectorIsNull( args.velocity ))
VectorCopy( state->velocity, args.velocity );
}
else if(( pEnt = CL_GetEntityByIndex( args.entindex )) != NULL )
{
if( VectorIsNull( args.origin ))
VectorCopy( pEnt->curstate.origin, args.origin );
if( VectorIsNull( args.angles ))
VectorCopy( pEnt->curstate.angles, args.angles );
if( VectorIsNull( args.velocity ))
VectorCopy( pEnt->curstate.velocity, args.velocity );
}
if( BF_ReadOneBit( msg ))
delay = (float)BF_ReadWord( msg ) * (1.0f / 100.0f);
else delay = 0.0f;
// g-cont. should we need find the event with same index?
CL_QueueEvent( 0, event_index, delay, &args );
}
}
/*
==================
MSG_ReadDeltaEntity
The entity number has already been read from the message, which
is how the from state is identified.
If the delta removes the entity, entity_state_t->number will be set to MAX_EDICTS
Can go from either a baseline or a previous packet_entity
==================
*/
qboolean MSG_ReadDeltaEntity( sizebuf_t *msg, entity_state_t *from, entity_state_t *to, int number, qboolean player, float timebase )
{
delta_info_t *dt = NULL;
delta_t *pField;
int i, fRemoveType;
#ifndef XASH_DEDICATED
if( number < 0 || number >= clgame.maxEntities )
{
// broken packet, try to skip it
MsgDev( D_ERROR, "MSG_ReadDeltaEntity: bad delta entity number: %i\n", number );
return false;
}
*to = *from;
to->number = number;
fRemoveType = BF_ReadUBitLong( msg, 2 );
if( fRemoveType )
{
// check for a remove
Q_memset( to, 0, sizeof( *to ));
if( fRemoveType & 1 )
{
// removed from delta-message
return false;
}
if( fRemoveType & 2 )
{
// entity was removed from server
to->number = -1;
return false;
}
MsgDev( D_ERROR, "MSG_ReadDeltaEntity: unknown update type %i\n", fRemoveType );
return false;
}
if( BF_ReadOneBit( msg ))
to->entityType = BF_ReadUBitLong( msg, 2 );
if( to->entityType == ENTITY_BEAM )
{
dt = Delta_FindStruct( "custom_entity_state_t" );
}
else // ENTITY_NORMAL or other (try predict type)
{
/* Omit connection drop on wromg data from server.
* I know that it is very dirty,
* but i don't know how to do it better.*/
if( to->entityType != ENTITY_NORMAL )
MsgDev( D_NOTE, "MSG_ReadDeltaEntity: broken delta: entityType = %d\n", to->entityType );
if( player )
{
dt = Delta_FindStruct( "entity_state_player_t" );
}
else
{
dt = Delta_FindStruct( "entity_state_t" );
}
}
if( !(dt && dt->bInitialized) ) // Broken delta?
{
MsgDev( D_ERROR, "MSG_ReadDeltaEntity: broken delta\n");
return true;
}
pField = dt->pFields;
ASSERT( pField );
// process fields
for( i = 0; i < dt->numFields; i++, pField++ )
{
Delta_ReadField( msg, pField, from, to, timebase );
}
#endif
// message parsed
return true;
}
/*
==================
MSG_ReadDeltaEntity
The entity number has already been read from the message, which
is how the from state is identified.
If the delta removes the entity, entity_state_t->number will be set to MAX_EDICTS
Can go from either a baseline or a previous packet_entity
==================
*/
qboolean MSG_ReadDeltaEntity( sizebuf_t *msg, entity_state_t *from, entity_state_t *to, int number, qboolean player, float timebase )
{
delta_info_t *dt = NULL;
delta_t *pField;
int i, fRemoveType;
#ifndef _DEDICATED
if( number < 0 || number >= clgame.maxEntities )
Host_Error( "MSG_ReadDeltaEntity: bad delta entity number: %i\n", number );
#endif
*to = *from;
to->number = number;
fRemoveType = BF_ReadUBitLong( msg, 2 );
if( fRemoveType )
{
// check for a remove
Q_memset( to, 0, sizeof( *to ));
if( fRemoveType & 1 )
{
// removed from delta-message
return false;
}
if( fRemoveType & 2 )
{
// entity was removed from server
to->number = -1;
return false;
}
Host_Error( "MSG_ReadDeltaEntity: unknown update type %i\n", fRemoveType );
}
if( BF_ReadOneBit( msg ))
to->entityType = BF_ReadUBitLong( msg, 2 );
if( to->entityType == ENTITY_NORMAL )
{
if( player )
{
dt = Delta_FindStruct( "entity_state_player_t" );
}
else
{
dt = Delta_FindStruct( "entity_state_t" );
}
}
else if( to->entityType == ENTITY_BEAM )
{
dt = Delta_FindStruct( "custom_entity_state_t" );
}
ASSERT( dt && dt->bInitialized );
pField = dt->pFields;
ASSERT( pField );
// process fields
for( i = 0; i < dt->numFields; i++, pField++ )
{
Delta_ReadField( msg, pField, from, to, timebase );
}
// message parsed
return true;
}