/*
==================
MSG_WriteWeaponData
Writes current client data only for local client
Other clients can grab the client state from entity_state_t
==================
*/
void MSG_WriteWeaponData( sizebuf_t *msg, weapon_data_t *from, weapon_data_t *to, float timebase, int index )
{
delta_t *pField;
delta_info_t *dt;
int i, startBit;
int numChanges = 0;
dt = Delta_FindStruct( "weapon_data_t" );
if( !dt || !dt->bInitialized )
{
Host_Error( "MSG_WriteWeaponData: delta not initialized!\n" );
}
pField = dt->pFields;
ASSERT( pField );
// activate fields and call custom encode func
Delta_CustomEncode( dt, from, to );
startBit = msg->iCurBit;
BF_WriteOneBit( msg, 1 );
BF_WriteUBitLong( msg, index, MAX_WEAPON_BITS );
// process fields
for( i = 0; i < dt->numFields; i++, pField++ )
{
if( Delta_WriteField( msg, pField, from, to, timebase ))
numChanges++;
}
// if we have no changes - kill the message
if( !numChanges ) BF_SeekToBit( msg, startBit );
}
/*
=============================================================================
movevars_t communication
=============================================================================
*/
qboolean MSG_WriteDeltaMovevars( sizebuf_t *msg, movevars_t *from, movevars_t *to )
{
delta_t *pField;
delta_info_t *dt;
int i, startBit;
int numChanges = 0;
dt = Delta_FindStruct( "movevars_t" );
ASSERT( dt && dt->bInitialized );
pField = dt->pFields;
ASSERT( pField );
startBit = msg->iCurBit;
// activate fields and call custom encode func
Delta_CustomEncode( dt, from, to );
BF_WriteByte( msg, svc_deltamovevars );
// process fields
for( i = 0; i < dt->numFields; i++, pField++ )
{
if( Delta_WriteField( msg, pField, from, to, 0.0f ))
numChanges++;
}
// if we have no changes - kill the message
if( !numChanges )
{
BF_SeekToBit( msg, startBit );
return false;
}
return true;
}
/*
==================
MSG_WriteClientData
Writes current client data only for local client
Other clients can grab the client state from entity_state_t
==================
*/
void MSG_WriteClientData( sizebuf_t *msg, clientdata_t *from, clientdata_t *to, float timebase )
{
delta_t *pField;
delta_info_t *dt;
int i;
dt = Delta_FindStruct( "clientdata_t" );
ASSERT( dt && dt->bInitialized );
pField = dt->pFields;
ASSERT( pField );
// activate fields and call custom encode func
Delta_CustomEncode( dt, from, to );
// process fields
for( i = 0; i < dt->numFields; i++, pField++ )
{
Delta_WriteField( msg, pField, from, to, timebase );
}
}
/*
=====================
MSG_WriteDeltaEvent
=====================
*/
void MSG_WriteDeltaEvent( sizebuf_t *msg, event_args_t *from, event_args_t *to )
{
delta_t *pField;
delta_info_t *dt;
int i;
dt = Delta_FindStruct( "event_t" );
ASSERT( dt && dt->bInitialized );
pField = dt->pFields;
ASSERT( pField );
// activate fields and call custom encode func
Delta_CustomEncode( dt, from, to );
// process fields
for( i = 0; i < dt->numFields; i++, pField++ )
{
Delta_WriteField( msg, pField, from, to, 0.0f );
}
}
/*
=====================
MSG_WriteDeltaUsercmd
=====================
*/
void MSG_WriteDeltaUsercmd( sizebuf_t *msg, usercmd_t *from, usercmd_t *to )
{
delta_t *pField;
delta_info_t *dt;
int i;
dt = Delta_FindStruct( "usercmd_t" );
if( !dt || !dt->bInitialized )
{
Host_Error( "MSG_WriteDeltaUsercmd: delta not initialized!\n" );
}
pField = dt->pFields;
ASSERT( pField );
// activate fields and call custom encode func
Delta_CustomEncode( dt, from, to );
// process fields
for( i = 0; i < dt->numFields; i++, pField++ )
{
Delta_WriteField( msg, pField, from, to, 0.0f );
}
}
/*
==================
MSG_WriteDeltaEntity
Writes part of a packetentities message, including the entity number.
Can delta from either a baseline or a previous packet_entity
If to is NULL, a remove entity update will be sent
If force is not set, then nothing at all will be generated if the entity is
identical, under the assumption that the in-order delta code will catch it.
==================
*/
void MSG_WriteDeltaEntity( entity_state_t *from, entity_state_t *to, sizebuf_t *msg, qboolean force, qboolean player, float timebase )
{
delta_info_t *dt = NULL;
delta_t *pField;
int i, startBit;
int numChanges = 0;
if( to == NULL )
{
int fRemoveType;
if( from == NULL ) return;
// a NULL to is a delta remove message
BF_WriteWord( msg, from->number );
// fRemoveType:
// 0 - keep alive, has delta-update
// 1 - remove from delta message (but keep states)
// 2 - completely remove from server
if( force ) fRemoveType = 2;
else fRemoveType = 1;
BF_WriteUBitLong( msg, fRemoveType, 2 );
return;
}
startBit = msg->iCurBit;
if( to->number < 0 || to->number >= GI->max_edicts )
{
MsgDev( D_ERROR, "MSG_WriteDeltaEntity: Bad entity number: %i\n", to->number );
return;
}
BF_WriteWord( msg, to->number );
BF_WriteUBitLong( msg, 0, 2 ); // alive
if( to->entityType != from->entityType )
{
BF_WriteOneBit( msg, 1 );
BF_WriteUBitLong( msg, to->entityType, 2 );
}
else BF_WriteOneBit( msg, 0 );
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 );
// activate fields and call custom encode func
Delta_CustomEncode( dt, from, to );
// process fields
for( i = 0; i < dt->numFields; i++, pField++ )
{
if( Delta_WriteField( msg, pField, from, to, timebase ))
numChanges++;
}
// if we have no changes - kill the message
if( !numChanges && !force ) BF_SeekToBit( msg, startBit );
}
