mirror of https://github.com/FWGS/xash3d-fwgs
2199 lines
57 KiB
C
2199 lines
57 KiB
C
/*
|
|
net_encode.c - encode network messages
|
|
Copyright (C) 2010 Uncle Mike
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 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. See the
|
|
GNU General Public License for more details.
|
|
*/
|
|
|
|
#include "common.h"
|
|
#include "netchan.h"
|
|
#include "xash3d_mathlib.h"
|
|
#include "net_encode.h"
|
|
#include "event_api.h"
|
|
#include "usercmd.h"
|
|
#include "pm_movevars.h"
|
|
#include "entity_state.h"
|
|
#include "weaponinfo.h"
|
|
#include "event_args.h"
|
|
#include "protocol.h"
|
|
#include "client.h"
|
|
|
|
#define DELTA_PATH "delta.lst"
|
|
|
|
#define DT_BYTE BIT( 0 ) // A byte
|
|
#define DT_SHORT BIT( 1 ) // 2 byte field
|
|
#define DT_FLOAT BIT( 2 ) // A floating point field
|
|
#define DT_INTEGER BIT( 3 ) // 4 byte integer
|
|
#define DT_ANGLE BIT( 4 ) // A floating point angle ( will get masked correctly )
|
|
#define DT_TIMEWINDOW_8 BIT( 5 ) // A floating point timestamp, relative to sv.time
|
|
#define DT_TIMEWINDOW_BIG BIT( 6 ) // and re-encoded on the client relative to the client's clock
|
|
#define DT_STRING BIT( 7 ) // A null terminated string, sent as 8 byte chars
|
|
#define DT_SIGNED BIT( 8 ) // sign modificator
|
|
|
|
#define NUM_FIELDS( x ) ((sizeof( x ) / sizeof( x[0] )) - 1)
|
|
|
|
// helper macroses
|
|
#define ENTS_DEF( x ) #x, offsetof( entity_state_t, x ), sizeof( ((entity_state_t *)0)->x )
|
|
#define UCMD_DEF( x ) #x, offsetof( usercmd_t, x ), sizeof( ((usercmd_t *)0)->x )
|
|
#define EVNT_DEF( x ) #x, offsetof( event_args_t, x ), sizeof( ((event_args_t *)0)->x )
|
|
#define PHYS_DEF( x ) #x, offsetof( movevars_t, x ), sizeof( ((movevars_t *)0)->x )
|
|
#define CLDT_DEF( x ) #x, offsetof( clientdata_t, x ), sizeof( ((clientdata_t *)0)->x )
|
|
#define WPDT_DEF( x ) #x, offsetof( weapon_data_t, x ), sizeof( ((weapon_data_t *)0)->x )
|
|
|
|
static qboolean delta_init = false;
|
|
|
|
// list of all the struct names
|
|
static const delta_field_t cmd_fields[] =
|
|
{
|
|
{ UCMD_DEF( lerp_msec ) },
|
|
{ UCMD_DEF( msec ) },
|
|
{ UCMD_DEF( viewangles[0] ) },
|
|
{ UCMD_DEF( viewangles[1] ) },
|
|
{ UCMD_DEF( viewangles[2] ) },
|
|
{ UCMD_DEF( forwardmove ) },
|
|
{ UCMD_DEF( sidemove ) },
|
|
{ UCMD_DEF( upmove ) },
|
|
{ UCMD_DEF( lightlevel ) },
|
|
{ UCMD_DEF( buttons ) },
|
|
{ UCMD_DEF( impulse ) },
|
|
{ UCMD_DEF( weaponselect ) },
|
|
{ UCMD_DEF( impact_index ) },
|
|
{ UCMD_DEF( impact_position[0] ) },
|
|
{ UCMD_DEF( impact_position[1] ) },
|
|
{ UCMD_DEF( impact_position[2] ) },
|
|
{ NULL },
|
|
};
|
|
|
|
static const delta_field_t pm_fields[] =
|
|
{
|
|
{ PHYS_DEF( gravity ) },
|
|
{ PHYS_DEF( stopspeed ) },
|
|
{ PHYS_DEF( maxspeed ) },
|
|
{ PHYS_DEF( spectatormaxspeed ) },
|
|
{ PHYS_DEF( accelerate ) },
|
|
{ PHYS_DEF( airaccelerate ) },
|
|
{ PHYS_DEF( wateraccelerate ) },
|
|
{ PHYS_DEF( friction ) },
|
|
{ PHYS_DEF( edgefriction ) },
|
|
{ PHYS_DEF( waterfriction ) },
|
|
{ PHYS_DEF( bounce ) },
|
|
{ PHYS_DEF( stepsize ) },
|
|
{ PHYS_DEF( maxvelocity ) },
|
|
{ PHYS_DEF( zmax ) },
|
|
{ PHYS_DEF( waveHeight ) },
|
|
{ PHYS_DEF( footsteps ) },
|
|
{ PHYS_DEF( skyName ) },
|
|
{ PHYS_DEF( rollangle ) },
|
|
{ PHYS_DEF( rollspeed ) },
|
|
{ PHYS_DEF( skycolor_r ) },
|
|
{ PHYS_DEF( skycolor_g ) },
|
|
{ PHYS_DEF( skycolor_b ) },
|
|
{ PHYS_DEF( skyvec_x ) },
|
|
{ PHYS_DEF( skyvec_y ) },
|
|
{ PHYS_DEF( skyvec_z ) },
|
|
{ PHYS_DEF( fog_settings ) },
|
|
{ PHYS_DEF( wateralpha ) },
|
|
{ PHYS_DEF( skydir_x ) },
|
|
{ PHYS_DEF( skydir_y ) },
|
|
{ PHYS_DEF( skydir_z ) },
|
|
{ PHYS_DEF( skyangle ) },
|
|
{ NULL },
|
|
};
|
|
|
|
static const delta_field_t ev_fields[] =
|
|
{
|
|
{ EVNT_DEF( flags ) },
|
|
{ EVNT_DEF( entindex ) },
|
|
{ EVNT_DEF( origin[0] ) },
|
|
{ EVNT_DEF( origin[1] ) },
|
|
{ EVNT_DEF( origin[2] ) },
|
|
{ EVNT_DEF( angles[0] ) },
|
|
{ EVNT_DEF( angles[1] ) },
|
|
{ EVNT_DEF( angles[2] ) },
|
|
{ EVNT_DEF( velocity[0] ) },
|
|
{ EVNT_DEF( velocity[1] ) },
|
|
{ EVNT_DEF( velocity[2] ) },
|
|
{ EVNT_DEF( ducking ) },
|
|
{ EVNT_DEF( fparam1 ) },
|
|
{ EVNT_DEF( fparam2 ) },
|
|
{ EVNT_DEF( iparam1 ) },
|
|
{ EVNT_DEF( iparam2 ) },
|
|
{ EVNT_DEF( bparam1 ) },
|
|
{ EVNT_DEF( bparam2 ) },
|
|
{ NULL },
|
|
};
|
|
|
|
static const delta_field_t wd_fields[] =
|
|
{
|
|
{ WPDT_DEF( m_iId ) },
|
|
{ WPDT_DEF( m_iClip ) },
|
|
{ WPDT_DEF( m_flNextPrimaryAttack ) },
|
|
{ WPDT_DEF( m_flNextSecondaryAttack ) },
|
|
{ WPDT_DEF( m_flTimeWeaponIdle ) },
|
|
{ WPDT_DEF( m_fInReload ) },
|
|
{ WPDT_DEF( m_fInSpecialReload ) },
|
|
{ WPDT_DEF( m_flNextReload ) },
|
|
{ WPDT_DEF( m_flPumpTime ) },
|
|
{ WPDT_DEF( m_fReloadTime ) },
|
|
{ WPDT_DEF( m_fAimedDamage ) },
|
|
{ WPDT_DEF( m_fNextAimBonus ) },
|
|
{ WPDT_DEF( m_fInZoom ) },
|
|
{ WPDT_DEF( m_iWeaponState ) },
|
|
{ WPDT_DEF( iuser1 ) },
|
|
{ WPDT_DEF( iuser2 ) },
|
|
{ WPDT_DEF( iuser3 ) },
|
|
{ WPDT_DEF( iuser4 ) },
|
|
{ WPDT_DEF( fuser1 ) },
|
|
{ WPDT_DEF( fuser2 ) },
|
|
{ WPDT_DEF( fuser3 ) },
|
|
{ WPDT_DEF( fuser4 ) },
|
|
{ NULL },
|
|
};
|
|
|
|
static const delta_field_t cd_fields[] =
|
|
{
|
|
{ CLDT_DEF( origin[0] ) },
|
|
{ CLDT_DEF( origin[1] ) },
|
|
{ CLDT_DEF( origin[2] ) },
|
|
{ CLDT_DEF( velocity[0] ) },
|
|
{ CLDT_DEF( velocity[1] ) },
|
|
{ CLDT_DEF( velocity[2] ) },
|
|
{ CLDT_DEF( viewmodel ) },
|
|
{ CLDT_DEF( punchangle[0] ) },
|
|
{ CLDT_DEF( punchangle[1] ) },
|
|
{ CLDT_DEF( punchangle[2] ) },
|
|
{ CLDT_DEF( flags ) },
|
|
{ CLDT_DEF( waterlevel ) },
|
|
{ CLDT_DEF( watertype ) },
|
|
{ CLDT_DEF( view_ofs[0] ) },
|
|
{ CLDT_DEF( view_ofs[1] ) },
|
|
{ CLDT_DEF( view_ofs[2] ) },
|
|
{ CLDT_DEF( health ) },
|
|
{ CLDT_DEF( bInDuck ) },
|
|
{ CLDT_DEF( weapons ) },
|
|
{ CLDT_DEF( flTimeStepSound ) },
|
|
{ CLDT_DEF( flDuckTime ) },
|
|
{ CLDT_DEF( flSwimTime ) },
|
|
{ CLDT_DEF( waterjumptime ) },
|
|
{ CLDT_DEF( maxspeed ) },
|
|
{ CLDT_DEF( fov ) },
|
|
{ CLDT_DEF( weaponanim ) },
|
|
{ CLDT_DEF( m_iId ) },
|
|
{ CLDT_DEF( ammo_shells ) },
|
|
{ CLDT_DEF( ammo_nails ) },
|
|
{ CLDT_DEF( ammo_cells ) },
|
|
{ CLDT_DEF( ammo_rockets ) },
|
|
{ CLDT_DEF( m_flNextAttack ) },
|
|
{ CLDT_DEF( tfstate ) },
|
|
{ CLDT_DEF( pushmsec ) },
|
|
{ CLDT_DEF( deadflag ) },
|
|
{ CLDT_DEF( physinfo ) },
|
|
{ CLDT_DEF( iuser1 ) },
|
|
{ CLDT_DEF( iuser2 ) },
|
|
{ CLDT_DEF( iuser3 ) },
|
|
{ CLDT_DEF( iuser4 ) },
|
|
{ CLDT_DEF( fuser1 ) },
|
|
{ CLDT_DEF( fuser2 ) },
|
|
{ CLDT_DEF( fuser3 ) },
|
|
{ CLDT_DEF( fuser4 ) },
|
|
{ CLDT_DEF( vuser1[0] ) },
|
|
{ CLDT_DEF( vuser1[1] ) },
|
|
{ CLDT_DEF( vuser1[2] ) },
|
|
{ CLDT_DEF( vuser2[0] ) },
|
|
{ CLDT_DEF( vuser2[1] ) },
|
|
{ CLDT_DEF( vuser2[2] ) },
|
|
{ CLDT_DEF( vuser3[0] ) },
|
|
{ CLDT_DEF( vuser3[1] ) },
|
|
{ CLDT_DEF( vuser3[2] ) },
|
|
{ CLDT_DEF( vuser4[0] ) },
|
|
{ CLDT_DEF( vuser4[1] ) },
|
|
{ CLDT_DEF( vuser4[2] ) },
|
|
{ NULL },
|
|
};
|
|
|
|
static const delta_field_t ent_fields[] =
|
|
{
|
|
{ ENTS_DEF( entityType ) },
|
|
{ ENTS_DEF( origin[0] ) },
|
|
{ ENTS_DEF( origin[1] ) },
|
|
{ ENTS_DEF( origin[2] ) },
|
|
{ ENTS_DEF( angles[0] ) },
|
|
{ ENTS_DEF( angles[1] ) },
|
|
{ ENTS_DEF( angles[2] ) },
|
|
{ ENTS_DEF( modelindex ) },
|
|
{ ENTS_DEF( sequence ) },
|
|
{ ENTS_DEF( frame ) },
|
|
{ ENTS_DEF( colormap ) },
|
|
{ ENTS_DEF( skin ) },
|
|
{ ENTS_DEF( solid ) },
|
|
{ ENTS_DEF( effects ) },
|
|
{ ENTS_DEF( scale ) },
|
|
{ ENTS_DEF( eflags ) },
|
|
{ ENTS_DEF( rendermode ) },
|
|
{ ENTS_DEF( renderamt ) },
|
|
{ ENTS_DEF( rendercolor.r ) },
|
|
{ ENTS_DEF( rendercolor.g ) },
|
|
{ ENTS_DEF( rendercolor.b ) },
|
|
{ ENTS_DEF( renderfx ) },
|
|
{ ENTS_DEF( movetype ) },
|
|
{ ENTS_DEF( animtime ) },
|
|
{ ENTS_DEF( framerate ) },
|
|
{ ENTS_DEF( body ) },
|
|
{ ENTS_DEF( controller[0] ) },
|
|
{ ENTS_DEF( controller[1] ) },
|
|
{ ENTS_DEF( controller[2] ) },
|
|
{ ENTS_DEF( controller[3] ) },
|
|
{ ENTS_DEF( blending[0] ) },
|
|
{ ENTS_DEF( blending[1] ) },
|
|
{ ENTS_DEF( blending[2] ) },
|
|
{ ENTS_DEF( blending[3] ) },
|
|
{ ENTS_DEF( velocity[0] ) },
|
|
{ ENTS_DEF( velocity[1] ) },
|
|
{ ENTS_DEF( velocity[2] ) },
|
|
{ ENTS_DEF( mins[0] ) },
|
|
{ ENTS_DEF( mins[1] ) },
|
|
{ ENTS_DEF( mins[2] ) },
|
|
{ ENTS_DEF( maxs[0] ) },
|
|
{ ENTS_DEF( maxs[1] ) },
|
|
{ ENTS_DEF( maxs[2] ) },
|
|
{ ENTS_DEF( aiment ) },
|
|
{ ENTS_DEF( owner ) },
|
|
{ ENTS_DEF( friction ) },
|
|
{ ENTS_DEF( gravity ) },
|
|
{ ENTS_DEF( team ) },
|
|
{ ENTS_DEF( playerclass ) },
|
|
{ ENTS_DEF( health ) },
|
|
{ ENTS_DEF( spectator ) },
|
|
{ ENTS_DEF( weaponmodel ) },
|
|
{ ENTS_DEF( gaitsequence ) },
|
|
{ ENTS_DEF( basevelocity[0] ) },
|
|
{ ENTS_DEF( basevelocity[1] ) },
|
|
{ ENTS_DEF( basevelocity[2] ) },
|
|
{ ENTS_DEF( usehull ) },
|
|
{ ENTS_DEF( oldbuttons ) }, // probably never transmitted
|
|
{ ENTS_DEF( onground ) },
|
|
{ ENTS_DEF( iStepLeft ) },
|
|
{ ENTS_DEF( flFallVelocity ) },
|
|
{ ENTS_DEF( fov ) },
|
|
{ ENTS_DEF( weaponanim ) },
|
|
{ ENTS_DEF( startpos[0] ) },
|
|
{ ENTS_DEF( startpos[1] ) },
|
|
{ ENTS_DEF( startpos[2] ) },
|
|
{ ENTS_DEF( endpos[0] ) },
|
|
{ ENTS_DEF( endpos[1] ) },
|
|
{ ENTS_DEF( endpos[2] ) },
|
|
{ ENTS_DEF( impacttime ) },
|
|
{ ENTS_DEF( starttime ) },
|
|
{ ENTS_DEF( iuser1 ) },
|
|
{ ENTS_DEF( iuser2 ) },
|
|
{ ENTS_DEF( iuser3 ) },
|
|
{ ENTS_DEF( iuser4 ) },
|
|
{ ENTS_DEF( fuser1 ) },
|
|
{ ENTS_DEF( fuser2 ) },
|
|
{ ENTS_DEF( fuser3 ) },
|
|
{ ENTS_DEF( fuser4 ) },
|
|
{ ENTS_DEF( vuser1[0] ) },
|
|
{ ENTS_DEF( vuser1[1] ) },
|
|
{ ENTS_DEF( vuser1[2] ) },
|
|
{ ENTS_DEF( vuser2[0] ) },
|
|
{ ENTS_DEF( vuser2[1] ) },
|
|
{ ENTS_DEF( vuser2[2] ) },
|
|
{ ENTS_DEF( vuser3[0] ) },
|
|
{ ENTS_DEF( vuser3[1] ) },
|
|
{ ENTS_DEF( vuser3[2] ) },
|
|
{ ENTS_DEF( vuser4[0] ) },
|
|
{ ENTS_DEF( vuser4[1] ) },
|
|
{ ENTS_DEF( vuser4[2] ) },
|
|
{ NULL },
|
|
};
|
|
|
|
#if XASH_ENGINE_TESTS
|
|
typedef struct delta_test_struct_t
|
|
{
|
|
char dt_string[128]; // always signed
|
|
float dt_timewindow_big; // always signed
|
|
float dt_timewindow_8; // always signed
|
|
float dt_angle; // always_signed
|
|
float dt_float_signed;
|
|
float dt_float_unsigned;
|
|
int32_t dt_integer_signed;
|
|
uint32_t dt_integer_unsigned;
|
|
int16_t dt_short_signed;
|
|
uint16_t dt_short_unsigned;
|
|
int8_t dt_byte_signed;
|
|
uint8_t dt_byte_unsigned;
|
|
} delta_test_struct_t;
|
|
|
|
#define TEST_DEF( x ) #x, offsetof( delta_test_struct_t, x ), sizeof( ((delta_test_struct_t *)0)->x )
|
|
|
|
static const delta_field_t test_fields[] =
|
|
{
|
|
{ TEST_DEF( dt_string ) },
|
|
{ TEST_DEF( dt_timewindow_big )},
|
|
{ TEST_DEF( dt_timewindow_8 )},
|
|
{ TEST_DEF( dt_angle ) },
|
|
{ TEST_DEF( dt_float_signed ) },
|
|
{ TEST_DEF( dt_float_unsigned ) },
|
|
{ TEST_DEF( dt_integer_signed ) },
|
|
{ TEST_DEF( dt_integer_unsigned ) },
|
|
{ TEST_DEF( dt_short_signed ) },
|
|
{ TEST_DEF( dt_short_unsigned ) },
|
|
{ TEST_DEF( dt_byte_signed ) },
|
|
{ TEST_DEF( dt_byte_unsigned ) },
|
|
{ NULL },
|
|
};
|
|
#endif
|
|
|
|
enum
|
|
{
|
|
DT_EVENT_T = 0,
|
|
DT_MOVEVARS_T,
|
|
DT_USERCMD_T,
|
|
DT_CLIENTDATA_T,
|
|
DT_WEAPONDATA_T,
|
|
DT_ENTITY_STATE_T,
|
|
DT_ENTITY_STATE_PLAYER_T,
|
|
DT_CUSTOM_ENTITY_STATE_T,
|
|
#if XASH_ENGINE_TESTS
|
|
DT_DELTA_TEST_STRUCT_T,
|
|
#endif
|
|
DT_STRUCT_COUNT
|
|
};
|
|
|
|
static delta_info_t dt_info[] =
|
|
{
|
|
[DT_EVENT_T] = { "event_t", ev_fields, NUM_FIELDS( ev_fields ) },
|
|
[DT_MOVEVARS_T] = { "movevars_t", pm_fields, NUM_FIELDS( pm_fields ) },
|
|
[DT_USERCMD_T] = { "usercmd_t", cmd_fields, NUM_FIELDS( cmd_fields ) },
|
|
[DT_CLIENTDATA_T] = { "clientdata_t", cd_fields, NUM_FIELDS( cd_fields ) },
|
|
[DT_WEAPONDATA_T] = { "weapon_data_t", wd_fields, NUM_FIELDS( wd_fields ) },
|
|
[DT_ENTITY_STATE_T] = { "entity_state_t", ent_fields, NUM_FIELDS( ent_fields ) },
|
|
[DT_ENTITY_STATE_PLAYER_T] = { "entity_state_player_t", ent_fields, NUM_FIELDS( ent_fields ) },
|
|
[DT_CUSTOM_ENTITY_STATE_T] = { "custom_entity_state_t", ent_fields, NUM_FIELDS( ent_fields ) },
|
|
#if XASH_ENGINE_TESTS
|
|
[DT_DELTA_TEST_STRUCT_T] = { "delta_test_struct_t", test_fields, NUM_FIELDS( test_fields ) },
|
|
#endif
|
|
[DT_STRUCT_COUNT] = { NULL },
|
|
};
|
|
|
|
static delta_info_t *Delta_FindStruct( const char *name )
|
|
{
|
|
int i;
|
|
|
|
if( !COM_CheckString( name ))
|
|
return NULL;
|
|
|
|
for( i = 0; i < NUM_FIELDS( dt_info ); i++ )
|
|
{
|
|
if( !Q_stricmp( dt_info[i].pName, name ))
|
|
return &dt_info[i];
|
|
}
|
|
|
|
Con_DPrintf( S_WARN "Struct %s not found in delta_info\n", name );
|
|
|
|
// found nothing
|
|
return NULL;
|
|
}
|
|
|
|
static int Delta_NumTables( void )
|
|
{
|
|
return NUM_FIELDS( dt_info );
|
|
}
|
|
|
|
static delta_info_t *Delta_FindStructByIndex( int index )
|
|
{
|
|
return &dt_info[index];
|
|
}
|
|
|
|
static delta_info_t *Delta_FindStructByEncoder( const char *encoderName )
|
|
{
|
|
int i;
|
|
|
|
if( !COM_CheckString( encoderName ) )
|
|
return NULL;
|
|
|
|
for( i = 0; i < NUM_FIELDS( dt_info ); i++ )
|
|
{
|
|
if( !Q_stricmp( dt_info[i].funcName, encoderName ))
|
|
return &dt_info[i];
|
|
}
|
|
// found nothing
|
|
return NULL;
|
|
}
|
|
|
|
static delta_info_t *Delta_FindStructByDelta( const delta_t *pFields )
|
|
{
|
|
int i;
|
|
|
|
if( !pFields ) return NULL;
|
|
|
|
for( i = 0; i < NUM_FIELDS( dt_info ); i++ )
|
|
{
|
|
if( dt_info[i].pFields == pFields )
|
|
return &dt_info[i];
|
|
}
|
|
// found nothing
|
|
return NULL;
|
|
}
|
|
|
|
static void Delta_CustomEncode( delta_info_t *dt, const void *from, const void *to )
|
|
{
|
|
int i;
|
|
|
|
Assert( dt != NULL );
|
|
|
|
// set all fields is active by default
|
|
for( i = 0; i < dt->numFields; i++ )
|
|
dt->pFields[i].bInactive = false;
|
|
|
|
if( dt->userCallback )
|
|
dt->userCallback( dt->pFields, from, to );
|
|
}
|
|
|
|
static delta_field_t *Delta_FindFieldInfo( const delta_field_t *pInfo, const char *fieldName )
|
|
{
|
|
if( !fieldName || !*fieldName )
|
|
return NULL;
|
|
|
|
for( ; pInfo->name; pInfo++ )
|
|
{
|
|
if( !Q_strcmp( pInfo->name, fieldName ))
|
|
return (delta_field_t *)pInfo;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static int Delta_IndexForFieldInfo( const delta_field_t *pInfo, const char *fieldName )
|
|
{
|
|
int i;
|
|
|
|
if( !fieldName || !*fieldName )
|
|
return -1;
|
|
|
|
for( i = 0; pInfo->name; i++, pInfo++ )
|
|
{
|
|
if( !Q_strcmp( pInfo->name, fieldName ))
|
|
return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static qboolean Delta_AddField( delta_info_t *dt, const char *pName, int flags, int bits, float mul, float post_mul )
|
|
{
|
|
delta_field_t *pFieldInfo;
|
|
delta_t *pField;
|
|
int i;
|
|
|
|
// check for coexisting field
|
|
for( i = 0, pField = dt->pFields; i < dt->numFields; i++, pField++ )
|
|
{
|
|
if( !Q_strcmp( pField->name, pName ))
|
|
{
|
|
// update existed field
|
|
pField->flags = flags;
|
|
pField->bits = bits;
|
|
pField->multiplier = mul;
|
|
pField->post_multiplier = post_mul;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// find field description
|
|
pFieldInfo = Delta_FindFieldInfo( dt->pInfo, pName );
|
|
if( !pFieldInfo )
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_Add: couldn't find description for %s->%s\n", dt->pName, pName );
|
|
return false;
|
|
}
|
|
|
|
if( dt->numFields + 1 > dt->maxFields )
|
|
{
|
|
Con_DPrintf( S_WARN "Delta_Add: can't add %s->%s encoder list is full\n", dt->pName, pName );
|
|
return false; // too many fields specified (duplicated ?)
|
|
}
|
|
|
|
// allocate a new one
|
|
dt->pFields = Z_Realloc( dt->pFields, (dt->numFields + 1) * sizeof( delta_t ));
|
|
for( i = 0, pField = dt->pFields; i < dt->numFields; i++, pField++ );
|
|
|
|
// copy info to new field
|
|
pField->name = pFieldInfo->name;
|
|
pField->offset = pFieldInfo->offset;
|
|
pField->size = pFieldInfo->size;
|
|
pField->flags = flags;
|
|
pField->bits = bits;
|
|
pField->multiplier = mul;
|
|
pField->post_multiplier = post_mul;
|
|
dt->numFields++;
|
|
|
|
return true;
|
|
}
|
|
|
|
static void Delta_WriteTableField( sizebuf_t *msg, int tableIndex, const delta_t *pField )
|
|
{
|
|
int nameIndex;
|
|
delta_info_t *dt;
|
|
|
|
Assert( pField != NULL );
|
|
|
|
if( !COM_CheckString( pField->name ))
|
|
return;// not initialized ?
|
|
|
|
dt = Delta_FindStructByIndex( tableIndex );
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
nameIndex = Delta_IndexForFieldInfo( dt->pInfo, pField->name );
|
|
Assert( nameIndex >= 0 && nameIndex < dt->maxFields );
|
|
|
|
MSG_BeginServerCmd( msg, svc_deltatable );
|
|
MSG_WriteUBitLong( msg, tableIndex, 4 ); // assume we support 16 network tables
|
|
MSG_WriteUBitLong( msg, nameIndex, 8 ); // 255 fields by struct should be enough
|
|
MSG_WriteUBitLong( msg, pField->flags, 10 ); // flags are indicated various input types
|
|
MSG_WriteUBitLong( msg, pField->bits - 1, 5 ); // max received value is 32 (32 bit)
|
|
|
|
// multipliers is null-compressed
|
|
if( !Q_equal( pField->multiplier, 1.0f ))
|
|
{
|
|
MSG_WriteOneBit( msg, 1 );
|
|
MSG_WriteFloat( msg, pField->multiplier );
|
|
}
|
|
else MSG_WriteOneBit( msg, 0 );
|
|
|
|
if( !Q_equal( pField->post_multiplier, 1.0f ))
|
|
{
|
|
MSG_WriteOneBit( msg, 1 );
|
|
MSG_WriteFloat( msg, pField->post_multiplier );
|
|
}
|
|
else MSG_WriteOneBit( msg, 0 );
|
|
}
|
|
|
|
void Delta_ParseTableField( sizebuf_t *msg )
|
|
{
|
|
int tableIndex, nameIndex;
|
|
float mul = 1.0f, post_mul = 1.0f;
|
|
int flags, bits;
|
|
const char *pName;
|
|
qboolean ignore = false;
|
|
delta_info_t *dt;
|
|
|
|
tableIndex = MSG_ReadUBitLong( msg, 4 );
|
|
dt = Delta_FindStructByIndex( tableIndex );
|
|
if( !dt )
|
|
Host_Error( "Delta_ParseTableField: not initialized" );
|
|
|
|
nameIndex = MSG_ReadUBitLong( msg, 8 ); // read field name index
|
|
if( ( nameIndex >= 0 && nameIndex < dt->maxFields ) )
|
|
{
|
|
pName = dt->pInfo[nameIndex].name;
|
|
}
|
|
else
|
|
{
|
|
ignore = true;
|
|
Con_Reportf( "Delta_ParseTableField: wrong nameIndex %d for table %s, ignoring\n", nameIndex, dt->pName );
|
|
}
|
|
|
|
flags = MSG_ReadUBitLong( msg, 10 );
|
|
bits = MSG_ReadUBitLong( msg, 5 ) + 1;
|
|
|
|
// read the multipliers
|
|
if( MSG_ReadOneBit( msg ))
|
|
mul = MSG_ReadFloat( msg );
|
|
|
|
if( MSG_ReadOneBit( msg ))
|
|
post_mul = MSG_ReadFloat( msg );
|
|
|
|
if( ignore )
|
|
return;
|
|
|
|
// delta encoders it's already initialized on this machine (local game)
|
|
if( delta_init )
|
|
Delta_Shutdown();
|
|
|
|
// add field to table
|
|
Delta_AddField( dt, pName, flags, bits, mul, post_mul );
|
|
}
|
|
|
|
static qboolean Delta_ParseField( char **delta_script, const delta_field_t *pInfo, delta_t *pField, qboolean bPost )
|
|
{
|
|
string token;
|
|
delta_field_t *pFieldInfo;
|
|
char *oldpos;
|
|
|
|
*delta_script = COM_ParseFile( *delta_script, token, sizeof( token ));
|
|
if( Q_strcmp( token, "(" ))
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_ParseField: expected '(', found '%s' instead\n", token );
|
|
return false;
|
|
}
|
|
|
|
// read the variable name
|
|
if(( *delta_script = COM_ParseFile( *delta_script, token, sizeof( token ))) == NULL )
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_ParseField: missing field name\n" );
|
|
return false;
|
|
}
|
|
|
|
pFieldInfo = Delta_FindFieldInfo( pInfo, token );
|
|
if( !pFieldInfo )
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_ParseField: unable to find field %s\n", token );
|
|
return false;
|
|
}
|
|
|
|
*delta_script = COM_ParseFile( *delta_script, token, sizeof( token ));
|
|
if( Q_strcmp( token, "," ))
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_ParseField: expected ',', found '%s' instead\n", token );
|
|
return false;
|
|
}
|
|
|
|
// copy base info to new field
|
|
pField->name = pFieldInfo->name;
|
|
pField->offset = pFieldInfo->offset;
|
|
pField->size = pFieldInfo->size;
|
|
pField->flags = 0;
|
|
|
|
// read delta-flags
|
|
while(( *delta_script = COM_ParseFile( *delta_script, token, sizeof( token ))) != NULL )
|
|
{
|
|
if( !Q_strcmp( token, "," ))
|
|
break; // end of flags argument
|
|
|
|
if( !Q_strcmp( token, "|" ))
|
|
continue;
|
|
|
|
if( !Q_strcmp( token, "DT_BYTE" ))
|
|
pField->flags |= DT_BYTE;
|
|
else if( !Q_strcmp( token, "DT_SHORT" ))
|
|
pField->flags |= DT_SHORT;
|
|
else if( !Q_strcmp( token, "DT_FLOAT" ))
|
|
pField->flags |= DT_FLOAT;
|
|
else if( !Q_strcmp( token, "DT_INTEGER" ))
|
|
pField->flags |= DT_INTEGER;
|
|
else if( !Q_strcmp( token, "DT_ANGLE" ))
|
|
pField->flags |= DT_ANGLE;
|
|
else if( !Q_strcmp( token, "DT_TIMEWINDOW_8" ))
|
|
pField->flags |= DT_TIMEWINDOW_8;
|
|
else if( !Q_strcmp( token, "DT_TIMEWINDOW_BIG" ))
|
|
pField->flags |= DT_TIMEWINDOW_BIG;
|
|
else if( !Q_strcmp( token, "DT_STRING" ))
|
|
pField->flags |= DT_STRING;
|
|
else if( !Q_strcmp( token, "DT_SIGNED" ))
|
|
pField->flags |= DT_SIGNED;
|
|
}
|
|
|
|
if( Q_strcmp( token, "," ))
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_ParseField: expected ',', found '%s' instead\n", token );
|
|
return false;
|
|
}
|
|
|
|
// read delta-bits
|
|
if(( *delta_script = COM_ParseFile( *delta_script, token, sizeof( token ))) == NULL )
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_ParseField: %s field bits argument is missing\n", pField->name );
|
|
return false;
|
|
}
|
|
|
|
pField->bits = Q_atoi( token );
|
|
|
|
*delta_script = COM_ParseFile( *delta_script, token, sizeof( token ));
|
|
if( Q_strcmp( token, "," ))
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_ParseField: expected ',', found '%s' instead\n", token );
|
|
return false;
|
|
}
|
|
|
|
// read delta-multiplier
|
|
if(( *delta_script = COM_ParseFile( *delta_script, token, sizeof( token ))) == NULL )
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_ParseField: %s missing 'multiplier' argument\n", pField->name );
|
|
return false;
|
|
}
|
|
|
|
pField->multiplier = Q_atof( token );
|
|
|
|
if( bPost )
|
|
{
|
|
*delta_script = COM_ParseFile( *delta_script, token, sizeof( token ));
|
|
if( Q_strcmp( token, "," ))
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_ParseField: expected ',', found '%s' instead\n", token );
|
|
return false;
|
|
}
|
|
|
|
// read delta-postmultiplier
|
|
if(( *delta_script = COM_ParseFile( *delta_script, token, sizeof( token ))) == NULL )
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_ParseField: %s missing 'post_multiply' argument\n", pField->name );
|
|
return false;
|
|
}
|
|
|
|
pField->post_multiplier = Q_atof( token );
|
|
}
|
|
else
|
|
{
|
|
// to avoid division by zero
|
|
pField->post_multiplier = 1.0f;
|
|
}
|
|
|
|
// closing brace...
|
|
*delta_script = COM_ParseFile( *delta_script, token, sizeof( token ));
|
|
if( Q_strcmp( token, ")" ))
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_ParseField: expected ')', found '%s' instead\n", token );
|
|
return false;
|
|
}
|
|
|
|
// ... and trying to parse optional ',' post-symbol
|
|
oldpos = *delta_script;
|
|
*delta_script = COM_ParseFile( *delta_script, token, sizeof( token ));
|
|
if( token[0] != ',' ) *delta_script = oldpos; // not a ','
|
|
|
|
return true;
|
|
}
|
|
|
|
static void Delta_ParseTable( char **delta_script, delta_info_t *dt, const char *encodeDll, const char *encodeFunc )
|
|
{
|
|
string token;
|
|
delta_t *pField;
|
|
const delta_field_t *pInfo;
|
|
|
|
// allocate the delta-structures
|
|
if( !dt->pFields ) dt->pFields = (delta_t *)Z_Calloc( dt->maxFields * sizeof( delta_t ));
|
|
|
|
pField = dt->pFields;
|
|
pInfo = dt->pInfo;
|
|
dt->numFields = 0;
|
|
|
|
// assume we have handled '{'
|
|
while(( *delta_script = COM_ParseFile( *delta_script, token, sizeof( token ))) != NULL )
|
|
{
|
|
Assert( dt->numFields <= dt->maxFields );
|
|
|
|
if( !Q_strcmp( token, "DEFINE_DELTA" ))
|
|
{
|
|
if( Delta_ParseField( delta_script, pInfo, &pField[dt->numFields], false ))
|
|
dt->numFields++;
|
|
}
|
|
else if( !Q_strcmp( token, "DEFINE_DELTA_POST" ))
|
|
{
|
|
if( Delta_ParseField( delta_script, pInfo, &pField[dt->numFields], true ))
|
|
dt->numFields++;
|
|
}
|
|
else if( token[0] == '}' )
|
|
{
|
|
// end of the section
|
|
break;
|
|
}
|
|
}
|
|
|
|
// copy function name
|
|
Q_strncpy( dt->funcName, encodeFunc, sizeof( dt->funcName ));
|
|
|
|
if( !Q_stricmp( encodeDll, "none" ))
|
|
dt->customEncode = CUSTOM_NONE;
|
|
else if( !Q_stricmp( encodeDll, "gamedll" ))
|
|
dt->customEncode = CUSTOM_SERVER_ENCODE;
|
|
else if( !Q_stricmp( encodeDll, "clientdll" ))
|
|
dt->customEncode = CUSTOM_CLIENT_ENCODE;
|
|
|
|
// adjust to fit memory size
|
|
if( dt->numFields < dt->maxFields )
|
|
{
|
|
dt->pFields = Z_Realloc( dt->pFields, dt->numFields * sizeof( delta_t ));
|
|
}
|
|
|
|
dt->bInitialized = true; // table is ok
|
|
}
|
|
|
|
static void Delta_InitFields( void )
|
|
{
|
|
byte *afile;
|
|
char *pfile;
|
|
string encodeDll, encodeFunc, token;
|
|
delta_info_t *dt;
|
|
|
|
afile = FS_LoadFile( DELTA_PATH, NULL, false );
|
|
if( !afile ) Sys_Error( "DELTA_Load: couldn't load file %s\n", DELTA_PATH );
|
|
|
|
pfile = (char *)afile;
|
|
|
|
while(( pfile = COM_ParseFile( pfile, token, sizeof( token ))) != NULL )
|
|
{
|
|
dt = Delta_FindStruct( token );
|
|
|
|
if( dt == NULL )
|
|
{
|
|
Sys_Error( "%s: unknown struct %s\n", DELTA_PATH, token );
|
|
}
|
|
|
|
pfile = COM_ParseFile( pfile, encodeDll, sizeof( encodeDll ));
|
|
|
|
if( !Q_stricmp( encodeDll, "none" ))
|
|
Q_strncpy( encodeFunc, "null", sizeof( encodeFunc ));
|
|
else pfile = COM_ParseFile( pfile, encodeFunc, sizeof( encodeFunc ));
|
|
|
|
// jump to '{'
|
|
pfile = COM_ParseFile( pfile, token, sizeof( token ));
|
|
|
|
if( token[0] != '{' )
|
|
{
|
|
Sys_Error( "%s: missing '{' in section %s\n", DELTA_PATH, dt->pName );
|
|
}
|
|
|
|
Delta_ParseTable( &pfile, dt, encodeDll, encodeFunc );
|
|
}
|
|
|
|
Mem_Free( afile );
|
|
}
|
|
|
|
void Delta_Init( void )
|
|
{
|
|
delta_info_t *dt;
|
|
|
|
// shutdown it first
|
|
if( delta_init ) Delta_Shutdown ();
|
|
|
|
Delta_InitFields (); // initialize fields
|
|
delta_init = true;
|
|
|
|
dt = Delta_FindStructByIndex( DT_MOVEVARS_T );
|
|
|
|
Assert( dt != NULL );
|
|
if( dt->bInitialized ) return; // "movevars_t" already specified by user
|
|
|
|
// create movevars_t delta internal
|
|
Delta_AddField( dt, "gravity", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
|
|
Delta_AddField( dt, "stopspeed", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
|
|
Delta_AddField( dt, "maxspeed", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
|
|
Delta_AddField( dt, "spectatormaxspeed", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
|
|
Delta_AddField( dt, "accelerate", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
|
|
Delta_AddField( dt, "airaccelerate", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
|
|
Delta_AddField( dt, "wateraccelerate", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
|
|
Delta_AddField( dt, "friction", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
|
|
Delta_AddField( dt, "edgefriction", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
|
|
Delta_AddField( dt, "waterfriction", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
|
|
Delta_AddField( dt, "bounce", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
|
|
Delta_AddField( dt, "stepsize", DT_FLOAT|DT_SIGNED, 16, 16.0f, 1.0f );
|
|
Delta_AddField( dt, "maxvelocity", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
|
|
|
|
if( FBitSet( host.features, ENGINE_WRITE_LARGE_COORD ))
|
|
Delta_AddField( dt, "zmax", DT_FLOAT|DT_SIGNED, 18, 1.0f, 1.0f );
|
|
else Delta_AddField( dt, "zmax", DT_FLOAT|DT_SIGNED, 16, 1.0f, 1.0f );
|
|
|
|
Delta_AddField( dt, "waveHeight", DT_FLOAT|DT_SIGNED, 16, 16.0f, 1.0f );
|
|
Delta_AddField( dt, "skyName", DT_STRING, 1, 1.0f, 1.0f );
|
|
Delta_AddField( dt, "footsteps", DT_INTEGER, 1, 1.0f, 1.0f );
|
|
Delta_AddField( dt, "rollangle", DT_FLOAT|DT_SIGNED, 16, 32.0f, 1.0f );
|
|
Delta_AddField( dt, "rollspeed", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
|
|
Delta_AddField( dt, "skycolor_r", DT_FLOAT|DT_SIGNED, 16, 1.0f, 1.0f ); // 0 - 264
|
|
Delta_AddField( dt, "skycolor_g", DT_FLOAT|DT_SIGNED, 16, 1.0f, 1.0f );
|
|
Delta_AddField( dt, "skycolor_b", DT_FLOAT|DT_SIGNED, 16, 1.0f, 1.0f );
|
|
Delta_AddField( dt, "skyvec_x", DT_FLOAT|DT_SIGNED, 16, 32.0f, 1.0f ); // 0 - 1
|
|
Delta_AddField( dt, "skyvec_y", DT_FLOAT|DT_SIGNED, 16, 32.0f, 1.0f );
|
|
Delta_AddField( dt, "skyvec_z", DT_FLOAT|DT_SIGNED, 16, 32.0f, 1.0f );
|
|
Delta_AddField( dt, "wateralpha", DT_FLOAT|DT_SIGNED, 16, 32.0f, 1.0f );
|
|
Delta_AddField( dt, "fog_settings", DT_INTEGER, 32, 1.0f, 1.0f );
|
|
dt->numFields = NUM_FIELDS( pm_fields ) - 4;
|
|
|
|
// now done
|
|
dt->bInitialized = true;
|
|
}
|
|
|
|
void Delta_InitClient( void )
|
|
{
|
|
int i, numActive = 0;
|
|
|
|
// already initalized
|
|
if( delta_init ) return;
|
|
|
|
for( i = 0; i < NUM_FIELDS( dt_info ); i++ )
|
|
{
|
|
if( dt_info[i].numFields > 0 )
|
|
{
|
|
dt_info[i].bInitialized = true;
|
|
numActive++;
|
|
}
|
|
}
|
|
|
|
if( numActive ) delta_init = true;
|
|
}
|
|
|
|
void Delta_Shutdown( void )
|
|
{
|
|
int i;
|
|
|
|
if( !delta_init ) return;
|
|
|
|
for( i = 0; i < NUM_FIELDS( dt_info ); i++ )
|
|
{
|
|
dt_info[i].numFields = 0;
|
|
dt_info[i].customEncode = CUSTOM_NONE;
|
|
dt_info[i].userCallback = NULL;
|
|
dt_info[i].funcName[0] = '\0';
|
|
|
|
if( dt_info[i].pFields )
|
|
{
|
|
Z_Free( dt_info[i].pFields );
|
|
dt_info[i].pFields = NULL;
|
|
}
|
|
|
|
dt_info[i].bInitialized = false;
|
|
}
|
|
|
|
delta_init = false;
|
|
}
|
|
|
|
/*
|
|
=====================
|
|
Delta_ClampIntegerField
|
|
|
|
prevent data to out of range
|
|
=====================
|
|
*/
|
|
static int Delta_ClampIntegerField( delta_t *pField, int iValue, int signbit, int numbits )
|
|
{
|
|
#ifdef _DEBUG
|
|
if( numbits < 32 && abs( iValue ) >= (uint)BIT( numbits ))
|
|
Con_Reportf( S_WARN "Delta_ClampIntegerField: field %s = %d overflowed %d\n", pField->name, abs( iValue ), (uint)BIT( numbits ));
|
|
#endif
|
|
if( numbits < 32 )
|
|
{
|
|
int signbits = numbits - signbit;
|
|
int maxnum = BIT( signbits ) - 1;
|
|
|
|
if( iValue > maxnum )
|
|
iValue = maxnum;
|
|
else if( signbit && iValue < -maxnum - 1 )
|
|
iValue = -maxnum - 1;
|
|
}
|
|
|
|
return iValue; // clamped;
|
|
}
|
|
|
|
/*
|
|
=====================
|
|
Delta_CompareField
|
|
|
|
compare fields by offsets
|
|
assume from and to is valid
|
|
=====================
|
|
*/
|
|
static qboolean Delta_CompareField( delta_t *pField, void *from, void *to, double timebase )
|
|
{
|
|
int signbit = ( pField->flags & DT_SIGNED ) ? 1 : 0;
|
|
float val_a, val_b;
|
|
int fromF, toF;
|
|
|
|
Assert( pField != NULL );
|
|
Assert( from != NULL );
|
|
Assert( to != NULL );
|
|
|
|
if( pField->bInactive )
|
|
return true;
|
|
|
|
fromF = toF = 0;
|
|
|
|
if( pField->flags & DT_BYTE )
|
|
{
|
|
if( signbit )
|
|
{
|
|
fromF = *(int8_t *)((int8_t *)from + pField->offset );
|
|
toF = *(int8_t *)((int8_t *)to + pField->offset );
|
|
}
|
|
else
|
|
{
|
|
fromF = *(uint8_t *)((int8_t *)from + pField->offset );
|
|
toF = *(uint8_t *)((int8_t *)to + pField->offset );
|
|
}
|
|
|
|
if( !Q_equal(pField->multiplier, 1.0f ))
|
|
{
|
|
fromF *= pField->multiplier;
|
|
toF *= pField->multiplier;
|
|
}
|
|
|
|
fromF = Delta_ClampIntegerField( pField, fromF, signbit, pField->bits );
|
|
toF = Delta_ClampIntegerField( pField, toF, signbit, pField->bits );
|
|
}
|
|
else if( pField->flags & DT_SHORT )
|
|
{
|
|
if( signbit )
|
|
{
|
|
fromF = *(int16_t *)((int8_t *)from + pField->offset );
|
|
toF = *(int16_t *)((int8_t *)to + pField->offset );
|
|
}
|
|
else
|
|
{
|
|
fromF = *(uint16_t *)((int8_t *)from + pField->offset );
|
|
toF = *(uint16_t *)((int8_t *)to + pField->offset );
|
|
}
|
|
|
|
if( !Q_equal(pField->multiplier, 1.0f ))
|
|
{
|
|
fromF *= pField->multiplier;
|
|
toF *= pField->multiplier;
|
|
}
|
|
|
|
fromF = Delta_ClampIntegerField( pField, fromF, signbit, pField->bits );
|
|
toF = Delta_ClampIntegerField( pField, toF, signbit, pField->bits );
|
|
}
|
|
else if( pField->flags & DT_INTEGER )
|
|
{
|
|
if( signbit )
|
|
{
|
|
fromF = *(int32_t *)((int8_t *)from + pField->offset );
|
|
toF = *(int32_t *)((int8_t *)to + pField->offset );
|
|
}
|
|
else
|
|
{
|
|
fromF = *(uint32_t *)((int8_t *)from + pField->offset );
|
|
toF = *(uint32_t *)((int8_t *)to + pField->offset );
|
|
}
|
|
|
|
if( !Q_equal(pField->multiplier, 1.0f ))
|
|
{
|
|
fromF *= pField->multiplier;
|
|
toF *= pField->multiplier;
|
|
}
|
|
|
|
fromF = Delta_ClampIntegerField( pField, fromF, signbit, pField->bits );
|
|
toF = Delta_ClampIntegerField( pField, toF, signbit, pField->bits );
|
|
}
|
|
else if( pField->flags & ( DT_ANGLE|DT_FLOAT ))
|
|
{
|
|
// don't convert floats to integers
|
|
fromF = *((int *)((byte *)from + pField->offset ));
|
|
toF = *((int *)((byte *)to + pField->offset ));
|
|
}
|
|
else if( pField->flags & DT_TIMEWINDOW_8 )
|
|
{
|
|
val_a = *(float *)((byte *)from + pField->offset );
|
|
val_b = *(float *)((byte *)to + pField->offset );
|
|
fromF = Q_rint( val_a * 100.0 );
|
|
toF = Q_rint( val_b * 100.0 );
|
|
}
|
|
else if( pField->flags & DT_TIMEWINDOW_BIG )
|
|
{
|
|
val_a = *(float *)((byte *)from + pField->offset );
|
|
val_b = *(float *)((byte *)to + pField->offset );
|
|
fromF = Q_rint( val_a * pField->multiplier );
|
|
toF = Q_rint( val_b * pField->multiplier );
|
|
}
|
|
else if( pField->flags & DT_STRING )
|
|
{
|
|
// compare strings
|
|
char *s1 = (char *)((byte *)from + pField->offset );
|
|
char *s2 = (char *)((byte *)to + pField->offset );
|
|
|
|
// 0 is equal, otherwise not equal
|
|
toF = Q_strcmp( s1, s2 );
|
|
}
|
|
|
|
return fromF == toF;
|
|
}
|
|
|
|
/*
|
|
=====================
|
|
Delta_TestBaseline
|
|
|
|
compare baselines to find optimal
|
|
=====================
|
|
*/
|
|
int Delta_TestBaseline( entity_state_t *from, entity_state_t *to, qboolean player, double timebase )
|
|
{
|
|
delta_info_t *dt = NULL;
|
|
delta_t *pField;
|
|
int i, countBits;
|
|
|
|
countBits = MAX_ENTITY_BITS + 2;
|
|
|
|
if( to == NULL )
|
|
{
|
|
if( from == NULL ) return 0;
|
|
return countBits;
|
|
}
|
|
|
|
if( FBitSet( to->entityType, ENTITY_BEAM ))
|
|
dt = Delta_FindStructByIndex( DT_CUSTOM_ENTITY_STATE_T );
|
|
else if( player )
|
|
dt = Delta_FindStructByIndex( DT_ENTITY_STATE_PLAYER_T );
|
|
else dt = Delta_FindStructByIndex( DT_ENTITY_STATE_T );
|
|
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
countBits++; // entityType flag
|
|
|
|
pField = dt->pFields;
|
|
Assert( pField != NULL );
|
|
|
|
// activate fields and call custom encode func
|
|
Delta_CustomEncode( dt, from, to );
|
|
|
|
// process fields
|
|
for( i = 0; i < dt->numFields; i++, pField++ )
|
|
{
|
|
// flag about field change (sets always)
|
|
countBits++;
|
|
|
|
if( !Delta_CompareField( pField, from, to, timebase ))
|
|
{
|
|
// strings are handled differently
|
|
if( FBitSet( pField->flags, DT_STRING ))
|
|
countBits += Q_strlen((char *)((byte *)to + pField->offset )) * 8;
|
|
else countBits += pField->bits;
|
|
}
|
|
}
|
|
|
|
// g-cont. compare bitcount directly no reason to call BitByte here
|
|
return countBits;
|
|
}
|
|
|
|
/*
|
|
=====================
|
|
Delta_WriteField
|
|
|
|
write fields by offsets
|
|
assume from and to is valid
|
|
=====================
|
|
*/
|
|
static qboolean Delta_WriteField( sizebuf_t *msg, delta_t *pField, void *from, void *to, double timebase )
|
|
{
|
|
int signbit = FBitSet( pField->flags, DT_SIGNED ) ? 1 : 0;
|
|
float flValue, flAngle;
|
|
uint iValue;
|
|
int dt;
|
|
const char *pStr;
|
|
|
|
if( Delta_CompareField( pField, from, to, timebase ))
|
|
{
|
|
MSG_WriteOneBit( msg, 0 ); // unchanged
|
|
return false;
|
|
}
|
|
|
|
MSG_WriteOneBit( msg, 1 ); // changed
|
|
|
|
if( pField->flags & DT_BYTE )
|
|
{
|
|
if( signbit )
|
|
iValue = *(int8_t *)((int8_t *)to + pField->offset );
|
|
else
|
|
iValue = *(uint8_t *)((int8_t *)to + pField->offset );
|
|
|
|
if( !Q_equal( pField->multiplier, 1.0 ))
|
|
iValue *= pField->multiplier;
|
|
|
|
iValue = Delta_ClampIntegerField( pField, iValue, signbit, pField->bits );
|
|
MSG_WriteBitLong( msg, iValue, pField->bits, signbit );
|
|
}
|
|
else if( pField->flags & DT_SHORT )
|
|
{
|
|
if( signbit )
|
|
iValue = *(int16_t *)((int8_t *)to + pField->offset );
|
|
else
|
|
iValue = *(uint16_t *)((int8_t *)to + pField->offset );
|
|
|
|
if( !Q_equal( pField->multiplier, 1.0 ))
|
|
iValue *= pField->multiplier;
|
|
|
|
iValue = Delta_ClampIntegerField( pField, iValue, signbit, pField->bits );
|
|
MSG_WriteBitLong( msg, iValue, pField->bits, signbit );
|
|
}
|
|
else if( pField->flags & DT_INTEGER )
|
|
{
|
|
if( signbit )
|
|
iValue = *(int32_t *)((int8_t *)to + pField->offset );
|
|
else
|
|
iValue = *(uint32_t *)((int8_t *)to + pField->offset );
|
|
|
|
if( !Q_equal( pField->multiplier, 1.0 ))
|
|
iValue *= pField->multiplier;
|
|
|
|
iValue = Delta_ClampIntegerField( pField, iValue, signbit, pField->bits );
|
|
MSG_WriteBitLong( msg, iValue, pField->bits, signbit );
|
|
}
|
|
else if( pField->flags & DT_FLOAT )
|
|
{
|
|
flValue = *(float *)((byte *)to + pField->offset );
|
|
iValue = (int)((double)flValue * pField->multiplier);
|
|
iValue = Delta_ClampIntegerField( pField, iValue, signbit, pField->bits );
|
|
MSG_WriteBitLong( msg, iValue, pField->bits, signbit );
|
|
}
|
|
else if( pField->flags & DT_ANGLE )
|
|
{
|
|
flAngle = *(float *)((byte *)to + pField->offset );
|
|
|
|
// NOTE: never applies multipliers to angle because
|
|
// result may be wrong on client-side
|
|
MSG_WriteBitAngle( msg, flAngle, pField->bits );
|
|
}
|
|
else if( pField->flags & DT_TIMEWINDOW_8 )
|
|
{
|
|
flValue = *(float *)((byte *)to + pField->offset );
|
|
dt = Q_rint(( timebase - flValue ) * 100.0 );
|
|
dt = Delta_ClampIntegerField( pField, dt, 1, pField->bits );
|
|
MSG_WriteSBitLong( msg, dt, pField->bits );
|
|
}
|
|
else if( pField->flags & DT_TIMEWINDOW_BIG )
|
|
{
|
|
flValue = *(float *)((byte *)to + pField->offset );
|
|
dt = Q_rint(( timebase - flValue ) * pField->multiplier );
|
|
dt = Delta_ClampIntegerField( pField, dt, 1, pField->bits );
|
|
MSG_WriteSBitLong( msg, dt, pField->bits );
|
|
}
|
|
else if( pField->flags & DT_STRING )
|
|
{
|
|
pStr = (char *)((byte *)to + pField->offset );
|
|
MSG_WriteString( msg, pStr );
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
====================
|
|
Delta_CopyField
|
|
|
|
====================
|
|
*/
|
|
static void Delta_CopyField( delta_t *pField, void *from, void *to, double timebase )
|
|
{
|
|
qboolean bSigned = FBitSet( pField->flags, DT_SIGNED );
|
|
uint8_t *to_field = (uint8_t *)to + pField->offset;
|
|
uint8_t *from_field = (uint8_t *)from + pField->offset;
|
|
|
|
if( FBitSet( pField->flags, DT_BYTE ))
|
|
{
|
|
if( bSigned )
|
|
*(int8_t *)( to_field ) = *(int8_t *)( from_field );
|
|
else
|
|
*(uint8_t *)( to_field ) = *(uint8_t *)( from_field );
|
|
}
|
|
else if( FBitSet( pField->flags, DT_SHORT ))
|
|
{
|
|
if( bSigned )
|
|
*(int16_t *)( to_field ) = *(int16_t *)( from_field );
|
|
else
|
|
*(uint16_t *)( to_field ) = *(uint16_t *)( from_field );
|
|
}
|
|
else if( FBitSet( pField->flags, DT_INTEGER ))
|
|
{
|
|
if( bSigned )
|
|
*(int32_t *)( to_field ) = *(int32_t *)( from_field );
|
|
else
|
|
*(uint32_t *)( to_field ) = *(uint32_t *)( from_field );
|
|
}
|
|
else if( FBitSet( pField->flags, DT_FLOAT|DT_ANGLE|DT_TIMEWINDOW_8|DT_TIMEWINDOW_BIG ))
|
|
{
|
|
*(float *)( to_field ) = *(float *)( from_field );
|
|
}
|
|
else if( FBitSet( pField->flags, DT_STRING ))
|
|
{
|
|
Q_strncpy( to_field, from_field, pField->size );
|
|
}
|
|
else
|
|
{
|
|
Assert( 0 );
|
|
}
|
|
}
|
|
|
|
/*
|
|
=====================
|
|
Delta_ReadField
|
|
|
|
read fields by offsets
|
|
assume 'from' and 'to' is valid
|
|
=====================
|
|
*/
|
|
static qboolean Delta_ReadField( sizebuf_t *msg, delta_t *pField, void *from, void *to, double timebase )
|
|
{
|
|
qboolean bSigned = ( pField->flags & DT_SIGNED ) ? true : false;
|
|
float flValue, flAngle, flTime;
|
|
uint iValue;
|
|
const char *pStr;
|
|
char *pOut;
|
|
|
|
if( !MSG_ReadOneBit( msg ) )
|
|
{
|
|
Delta_CopyField( pField, from, to, timebase );
|
|
return false;
|
|
}
|
|
|
|
Assert( pField->multiplier != 0.0f );
|
|
|
|
if( pField->flags & DT_BYTE )
|
|
{
|
|
iValue = MSG_ReadBitLong( msg, pField->bits, bSigned );
|
|
if( !Q_equal( pField->multiplier, 1.0 ))
|
|
iValue /= pField->multiplier;
|
|
|
|
if( !Q_equal( pField->post_multiplier, 1.0 ))
|
|
iValue *= pField->post_multiplier;
|
|
|
|
if( bSigned )
|
|
*(int8_t *)((uint8_t *)to + pField->offset ) = iValue;
|
|
else
|
|
*(uint8_t *)((uint8_t *)to + pField->offset ) = iValue;
|
|
}
|
|
else if( pField->flags & DT_SHORT )
|
|
{
|
|
iValue = MSG_ReadBitLong( msg, pField->bits, bSigned );
|
|
if( !Q_equal( pField->multiplier, 1.0 ))
|
|
iValue /= pField->multiplier;
|
|
|
|
if( !Q_equal( pField->post_multiplier, 1.0 ))
|
|
iValue *= pField->post_multiplier;
|
|
|
|
if( bSigned )
|
|
*(int16_t *)((uint8_t *)to + pField->offset ) = iValue;
|
|
else
|
|
*(uint16_t *)((uint8_t *)to + pField->offset ) = iValue;
|
|
}
|
|
else if( pField->flags & DT_INTEGER )
|
|
{
|
|
iValue = MSG_ReadBitLong( msg, pField->bits, bSigned );
|
|
if( !Q_equal( pField->multiplier, 1.0 ))
|
|
iValue /= pField->multiplier;
|
|
|
|
if( !Q_equal( pField->post_multiplier, 1.0 ))
|
|
iValue *= pField->post_multiplier;
|
|
|
|
if( bSigned )
|
|
*(int32_t *)((uint8_t *)to + pField->offset ) = iValue;
|
|
else
|
|
*(uint32_t *)((uint8_t *)to + pField->offset ) = iValue;
|
|
}
|
|
else if( pField->flags & DT_FLOAT )
|
|
{
|
|
iValue = MSG_ReadBitLong( msg, pField->bits, bSigned );
|
|
if( bSigned )
|
|
flValue = (int)iValue;
|
|
else
|
|
flValue = iValue;
|
|
|
|
if( !Q_equal( pField->multiplier, 1.0 ))
|
|
flValue /= pField->multiplier;
|
|
|
|
if( !Q_equal( pField->post_multiplier, 1.0 ))
|
|
flValue *= pField->post_multiplier;
|
|
|
|
*(float *)((byte *)to + pField->offset ) = flValue;
|
|
}
|
|
else if( pField->flags & DT_ANGLE )
|
|
{
|
|
flAngle = MSG_ReadBitAngle( msg, pField->bits );
|
|
*(float *)((byte *)to + pField->offset ) = flAngle;
|
|
}
|
|
else if( pField->flags & DT_TIMEWINDOW_8 )
|
|
{
|
|
iValue = MSG_ReadSBitLong( msg, pField->bits );
|
|
flTime = ( timebase * 100.0 - (int)iValue ) / 100.0;
|
|
*(float *)((byte *)to + pField->offset ) = flTime;
|
|
}
|
|
else if( pField->flags & DT_TIMEWINDOW_BIG )
|
|
{
|
|
iValue = MSG_ReadSBitLong( msg, pField->bits );
|
|
flTime = ( timebase * pField->multiplier - (int)iValue ) / pField->multiplier;
|
|
*(float *)((byte *)to + pField->offset ) = flTime;
|
|
}
|
|
else if( pField->flags & DT_STRING )
|
|
{
|
|
pStr = MSG_ReadString( msg );
|
|
pOut = (char *)((byte *)to + pField->offset );
|
|
Q_strncpy( pOut, pStr, pField->size );
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
=============================================================================
|
|
|
|
usercmd_t communication
|
|
|
|
=============================================================================
|
|
*/
|
|
/*
|
|
=====================
|
|
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_FindStructByIndex( DT_USERCMD_T );
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
pField = dt->pFields;
|
|
Assert( pField != NULL );
|
|
|
|
// 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_ReadDeltaUsercmd
|
|
=====================
|
|
*/
|
|
void MSG_ReadDeltaUsercmd( sizebuf_t *msg, usercmd_t *from, usercmd_t *to )
|
|
{
|
|
delta_t *pField;
|
|
delta_info_t *dt;
|
|
int i;
|
|
|
|
dt = Delta_FindStructByIndex( DT_USERCMD_T );
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
pField = dt->pFields;
|
|
Assert( pField != NULL );
|
|
|
|
*to = *from;
|
|
|
|
// process fields
|
|
for( i = 0; i < dt->numFields; i++, pField++ )
|
|
{
|
|
Delta_ReadField( msg, pField, from, to, 0.0f );
|
|
}
|
|
|
|
COM_NormalizeAngles( to->viewangles );
|
|
}
|
|
|
|
/*
|
|
============================================================================
|
|
|
|
event_args_t communication
|
|
|
|
============================================================================
|
|
*/
|
|
/*
|
|
=====================
|
|
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_FindStructByIndex( DT_EVENT_T );
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
pField = dt->pFields;
|
|
Assert( pField != NULL );
|
|
|
|
// 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_ReadDeltaEvent
|
|
=====================
|
|
*/
|
|
void MSG_ReadDeltaEvent( sizebuf_t *msg, event_args_t *from, event_args_t *to )
|
|
{
|
|
delta_t *pField;
|
|
delta_info_t *dt;
|
|
int i;
|
|
|
|
dt = Delta_FindStructByIndex( DT_EVENT_T );
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
pField = dt->pFields;
|
|
Assert( pField != NULL );
|
|
|
|
*to = *from;
|
|
|
|
// process fields
|
|
for( i = 0; i < dt->numFields; i++, pField++ )
|
|
{
|
|
Delta_ReadField( msg, pField, from, to, 0.0f );
|
|
}
|
|
}
|
|
|
|
/*
|
|
=============================================================================
|
|
|
|
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_FindStructByIndex( DT_MOVEVARS_T );
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
pField = dt->pFields;
|
|
Assert( pField != NULL );
|
|
|
|
startBit = msg->iCurBit;
|
|
|
|
// activate fields and call custom encode func
|
|
Delta_CustomEncode( dt, from, to );
|
|
|
|
MSG_BeginServerCmd( 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 )
|
|
{
|
|
MSG_SeekToBit( msg, startBit, SEEK_SET );
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void MSG_ReadDeltaMovevars( sizebuf_t *msg, movevars_t *from, movevars_t *to )
|
|
{
|
|
delta_t *pField;
|
|
delta_info_t *dt;
|
|
int i;
|
|
|
|
dt = Delta_FindStructByIndex( DT_MOVEVARS_T );
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
pField = dt->pFields;
|
|
Assert( pField != NULL );
|
|
|
|
*to = *from;
|
|
|
|
// process fields
|
|
for( i = 0; i < dt->numFields; i++, pField++ )
|
|
{
|
|
Delta_ReadField( msg, pField, from, to, 0.0f );
|
|
}
|
|
}
|
|
|
|
/*
|
|
=============================================================================
|
|
|
|
clientdata_t communication
|
|
|
|
=============================================================================
|
|
*/
|
|
/*
|
|
==================
|
|
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, double timebase )
|
|
{
|
|
delta_t *pField;
|
|
delta_info_t *dt;
|
|
int i, startBit;
|
|
int numChanges = 0;
|
|
|
|
dt = Delta_FindStructByIndex( DT_CLIENTDATA_T );
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
pField = dt->pFields;
|
|
Assert( pField != NULL );
|
|
|
|
startBit = msg->iCurBit;
|
|
|
|
MSG_WriteOneBit( msg, 1 ); // have clientdata
|
|
|
|
// 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( numChanges ) return; // we have updates
|
|
|
|
MSG_SeekToBit( msg, startBit, SEEK_SET );
|
|
MSG_WriteOneBit( msg, 0 ); // no changes
|
|
}
|
|
|
|
/*
|
|
==================
|
|
MSG_ReadClientData
|
|
|
|
Read the clientdata
|
|
==================
|
|
*/
|
|
void MSG_ReadClientData( sizebuf_t *msg, clientdata_t *from, clientdata_t *to, double timebase )
|
|
{
|
|
#if !XASH_DEDICATED
|
|
delta_t *pField;
|
|
delta_info_t *dt;
|
|
int i;
|
|
qboolean noChanges;
|
|
|
|
dt = Delta_FindStructByIndex( DT_CLIENTDATA_T );
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
pField = dt->pFields;
|
|
Assert( pField != NULL );
|
|
|
|
noChanges = !cls.legacymode && !MSG_ReadOneBit( msg );
|
|
|
|
// process fields
|
|
for( i = 0; i < dt->numFields; i++, pField++ )
|
|
{
|
|
if( noChanges )
|
|
Delta_CopyField( pField, from, to, timebase );
|
|
else Delta_ReadField( msg, pField, from, to, timebase );
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
=============================================================================
|
|
|
|
weapon_data_t communication
|
|
|
|
=============================================================================
|
|
*/
|
|
/*
|
|
==================
|
|
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, double timebase, int index )
|
|
{
|
|
delta_t *pField;
|
|
delta_info_t *dt;
|
|
int i, startBit;
|
|
int numChanges = 0;
|
|
|
|
dt = Delta_FindStructByIndex( DT_WEAPONDATA_T );
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
pField = dt->pFields;
|
|
Assert( pField != NULL );
|
|
|
|
// activate fields and call custom encode func
|
|
Delta_CustomEncode( dt, from, to );
|
|
|
|
startBit = msg->iCurBit;
|
|
|
|
MSG_WriteOneBit( msg, 1 );
|
|
MSG_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 ) MSG_SeekToBit( msg, startBit, SEEK_SET );
|
|
}
|
|
|
|
/*
|
|
==================
|
|
MSG_ReadWeaponData
|
|
|
|
Read the clientdata
|
|
==================
|
|
*/
|
|
void MSG_ReadWeaponData( sizebuf_t *msg, weapon_data_t *from, weapon_data_t *to, double timebase )
|
|
{
|
|
delta_t *pField;
|
|
delta_info_t *dt;
|
|
int i;
|
|
|
|
dt = Delta_FindStructByIndex( DT_WEAPONDATA_T );
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
pField = dt->pFields;
|
|
Assert( pField != NULL );
|
|
|
|
// process fields
|
|
for( i = 0; i < dt->numFields; i++, pField++ )
|
|
{
|
|
Delta_ReadField( msg, pField, from, to, timebase );
|
|
}
|
|
}
|
|
|
|
/*
|
|
=============================================================================
|
|
|
|
entity_state_t communication
|
|
|
|
=============================================================================
|
|
*/
|
|
/*
|
|
==================
|
|
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, int delta_type, double timebase, int baseline )
|
|
{
|
|
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
|
|
MSG_WriteUBitLong( msg, from->number, MAX_ENTITY_BITS );
|
|
|
|
// 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;
|
|
|
|
MSG_WriteUBitLong( msg, fRemoveType, 2 );
|
|
return;
|
|
}
|
|
|
|
startBit = msg->iCurBit;
|
|
|
|
if( to->number < 0 || to->number >= GI->max_edicts )
|
|
Host_Error( "MSG_WriteDeltaEntity: Bad entity number: %i\n", to->number );
|
|
|
|
MSG_WriteUBitLong( msg, to->number, MAX_ENTITY_BITS );
|
|
MSG_WriteUBitLong( msg, 0, 2 ); // alive
|
|
|
|
if( baseline != 0 )
|
|
{
|
|
MSG_WriteOneBit( msg, 1 );
|
|
MSG_WriteSBitLong( msg, baseline, 7 );
|
|
}
|
|
else MSG_WriteOneBit( msg, 0 );
|
|
|
|
if( force || ( to->entityType != from->entityType ))
|
|
{
|
|
MSG_WriteOneBit( msg, 1 );
|
|
MSG_WriteUBitLong( msg, to->entityType, 2 );
|
|
numChanges++;
|
|
}
|
|
else MSG_WriteOneBit( msg, 0 );
|
|
|
|
if( FBitSet( to->entityType, ENTITY_BEAM ))
|
|
{
|
|
dt = Delta_FindStructByIndex( DT_CUSTOM_ENTITY_STATE_T );
|
|
}
|
|
else if( delta_type == DELTA_PLAYER )
|
|
{
|
|
dt = Delta_FindStructByIndex( DT_ENTITY_STATE_PLAYER_T );
|
|
}
|
|
else
|
|
{
|
|
dt = Delta_FindStructByIndex( DT_ENTITY_STATE_T );
|
|
}
|
|
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
pField = dt->pFields;
|
|
Assert( pField != NULL );
|
|
|
|
if( delta_type == DELTA_STATIC )
|
|
{
|
|
// static entities won't to be custom encoded
|
|
for( i = 0; i < dt->numFields; i++ )
|
|
dt->pFields[i].bInactive = false;
|
|
}
|
|
else
|
|
{
|
|
// 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 ) MSG_SeekToBit( msg, startBit, SEEK_SET );
|
|
}
|
|
|
|
/*
|
|
==================
|
|
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, int delta_type, double timebase )
|
|
{
|
|
#if !XASH_DEDICATED
|
|
delta_info_t *dt = NULL;
|
|
delta_t *pField;
|
|
int i, fRemoveType;
|
|
int baseline_offset = 0;
|
|
|
|
if( number < 0 || number >= clgame.maxEntities )
|
|
Host_Error( "MSG_ReadDeltaEntity: bad delta entity number: %i\n", number );
|
|
|
|
fRemoveType = MSG_ReadUBitLong( msg, 2 );
|
|
|
|
if( fRemoveType )
|
|
{
|
|
// check for a remove
|
|
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( !cls.legacymode )
|
|
{
|
|
if( MSG_ReadOneBit( msg ))
|
|
baseline_offset = MSG_ReadSBitLong( msg, 7 );
|
|
|
|
if( baseline_offset != 0 )
|
|
{
|
|
if( delta_type == DELTA_STATIC )
|
|
{
|
|
int backup = Q_max( 0, clgame.numStatics - abs( baseline_offset ));
|
|
from = &clgame.static_entities[backup].baseline;
|
|
}
|
|
else if( baseline_offset > 0 )
|
|
{
|
|
int backup = cls.next_client_entities - baseline_offset;
|
|
from = &cls.packet_entities[backup % cls.num_client_entities];
|
|
}
|
|
else
|
|
{
|
|
baseline_offset = abs( baseline_offset + 1 );
|
|
if( baseline_offset < cl.instanced_baseline_count )
|
|
from = &cl.instanced_baseline[baseline_offset];
|
|
}
|
|
}
|
|
}
|
|
// g-cont. probably is redundant
|
|
*to = *from;
|
|
|
|
if( MSG_ReadOneBit( msg ))
|
|
to->entityType = MSG_ReadUBitLong( msg, 2 );
|
|
to->number = number;
|
|
|
|
if( cls.legacymode ? ( to->entityType == ENTITY_BEAM ) : FBitSet( to->entityType, ENTITY_BEAM ))
|
|
{
|
|
dt = Delta_FindStructByIndex( DT_CUSTOM_ENTITY_STATE_T );
|
|
}
|
|
else if( delta_type == DELTA_PLAYER )
|
|
{
|
|
dt = Delta_FindStructByIndex( DT_ENTITY_STATE_PLAYER_T );
|
|
}
|
|
else
|
|
{
|
|
dt = Delta_FindStructByIndex( DT_ENTITY_STATE_T );
|
|
}
|
|
|
|
Assert( dt && dt->bInitialized );
|
|
|
|
pField = dt->pFields;
|
|
Assert( pField != NULL );
|
|
|
|
// process fields
|
|
for( i = 0; i < dt->numFields; i++, pField++ )
|
|
{
|
|
Delta_ReadField( msg, pField, from, to, timebase );
|
|
}
|
|
#endif // XASH_DEDICATED
|
|
// message parsed
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
==================
|
|
Delta_WriteDescriptionToClient
|
|
|
|
send delta communication encoding
|
|
==================
|
|
*/
|
|
void Delta_WriteDescriptionToClient( sizebuf_t *msg )
|
|
{
|
|
int tableIndex;
|
|
int fieldIndex;
|
|
|
|
for( tableIndex = 0; tableIndex < Delta_NumTables(); tableIndex++ )
|
|
{
|
|
delta_info_t *dt = Delta_FindStructByIndex( tableIndex );
|
|
|
|
for( fieldIndex = 0; fieldIndex < dt->numFields; fieldIndex++ )
|
|
Delta_WriteTableField( msg, tableIndex, &dt->pFields[fieldIndex] );
|
|
}
|
|
}
|
|
|
|
/*
|
|
=============================================================================
|
|
|
|
game.dll interface
|
|
|
|
=============================================================================
|
|
*/
|
|
void GAME_EXPORT Delta_AddEncoder( char *name, pfnDeltaEncode encodeFunc )
|
|
{
|
|
delta_info_t *dt;
|
|
|
|
dt = Delta_FindStructByEncoder( name );
|
|
|
|
if( !dt || !dt->bInitialized )
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_AddEncoder: couldn't find delta with specified custom encode %s\n", name );
|
|
return;
|
|
}
|
|
|
|
if( dt->customEncode == CUSTOM_NONE )
|
|
{
|
|
Con_DPrintf( S_ERROR "Delta_AddEncoder: %s not supposed for custom encoding\n", dt->pName );
|
|
return;
|
|
}
|
|
|
|
// register new encode func
|
|
dt->userCallback = encodeFunc;
|
|
}
|
|
|
|
int GAME_EXPORT Delta_FindField( delta_t *pFields, const char *fieldname )
|
|
{
|
|
delta_info_t *dt;
|
|
delta_t *pField;
|
|
int i;
|
|
|
|
dt = Delta_FindStructByDelta( pFields );
|
|
if( dt == NULL || !fieldname || !fieldname[0] )
|
|
return -1;
|
|
|
|
for( i = 0, pField = dt->pFields; i < dt->numFields; i++, pField++ )
|
|
{
|
|
if( !Q_strcmp( pField->name, fieldname ))
|
|
return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
void GAME_EXPORT Delta_SetField( delta_t *pFields, const char *fieldname )
|
|
{
|
|
delta_info_t *dt;
|
|
delta_t *pField;
|
|
int i;
|
|
|
|
dt = Delta_FindStructByDelta( pFields );
|
|
if( dt == NULL || !fieldname || !fieldname[0] )
|
|
return;
|
|
|
|
for( i = 0, pField = dt->pFields; i < dt->numFields; i++, pField++ )
|
|
{
|
|
if( !Q_strcmp( pField->name, fieldname ))
|
|
{
|
|
pField->bInactive = false;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void GAME_EXPORT Delta_UnsetField( delta_t *pFields, const char *fieldname )
|
|
{
|
|
delta_info_t *dt;
|
|
delta_t *pField;
|
|
int i;
|
|
|
|
dt = Delta_FindStructByDelta( pFields );
|
|
if( dt == NULL || !fieldname || !fieldname[0] )
|
|
return;
|
|
|
|
for( i = 0, pField = dt->pFields; i < dt->numFields; i++, pField++ )
|
|
{
|
|
if( !Q_strcmp( pField->name, fieldname ))
|
|
{
|
|
pField->bInactive = true;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void GAME_EXPORT Delta_SetFieldByIndex( delta_t *pFields, int fieldNumber )
|
|
{
|
|
delta_info_t *dt;
|
|
|
|
dt = Delta_FindStructByDelta( pFields );
|
|
if( dt == NULL || fieldNumber < 0 || fieldNumber >= dt->numFields )
|
|
return;
|
|
|
|
dt->pFields[fieldNumber].bInactive = false;
|
|
}
|
|
|
|
void GAME_EXPORT Delta_UnsetFieldByIndex( delta_t *pFields, int fieldNumber )
|
|
{
|
|
delta_info_t *dt;
|
|
|
|
dt = Delta_FindStructByDelta( pFields );
|
|
if( dt == NULL || fieldNumber < 0 || fieldNumber >= dt->numFields )
|
|
return;
|
|
|
|
dt->pFields[fieldNumber].bInactive = true;
|
|
}
|
|
|
|
#if XASH_ENGINE_TESTS
|
|
#include "tests.h"
|
|
|
|
void Test_RunDelta( void )
|
|
{
|
|
delta_info_t *dt = &dt_info[DT_DELTA_TEST_STRUCT_T];
|
|
delta_test_struct_t from, to = { 0 };
|
|
delta_test_struct_t null = { 0 };
|
|
sizebuf_t msg;
|
|
int i;
|
|
char buffer[4096] = { 0 };
|
|
const double timebase = 123.123;
|
|
|
|
// a1ba: netbuffer bitmasks are initialized in netchan for some reason
|
|
// initialize it ourselves just in case
|
|
MSG_InitMasks(); // initialize bit-masks
|
|
|
|
Delta_AddField( dt, "dt_string", DT_STRING, 1, 1.0f, 1.0f );
|
|
Delta_AddField( dt, "dt_timewindow_big", DT_TIMEWINDOW_BIG, 24, 1000.f, 1.0f );
|
|
Delta_AddField( dt, "dt_timewindow_8", DT_TIMEWINDOW_8, 8, 1.0f, 1.0f );
|
|
Delta_AddField( dt, "dt_angle", DT_ANGLE, 16, 1.0f, 1.0f );
|
|
Delta_AddField( dt, "dt_float_signed", DT_FLOAT | DT_SIGNED, 22, 100.0f, 1.0f );
|
|
Delta_AddField( dt, "dt_float_unsigned", DT_FLOAT, 24, 10000.0f, 0.1f );
|
|
Delta_AddField( dt, "dt_integer_signed", DT_INTEGER | DT_SIGNED, 24, 1.0f, 1.0f );
|
|
Delta_AddField( dt, "dt_integer_unsigned", DT_INTEGER, 24, 1.0f, 1.0f );
|
|
Delta_AddField( dt, "dt_short_signed", DT_SHORT | DT_SIGNED, 16, 1.0f, 1.0f );
|
|
Delta_AddField( dt, "dt_short_unsigned", DT_SHORT, 15, 0.125f, 1.0f );
|
|
Delta_AddField( dt, "dt_byte_signed", DT_BYTE | DT_SIGNED, 6, 1.0f, 1.0f );
|
|
Delta_AddField( dt, "dt_byte_unsigned", DT_BYTE, 8, 1.0f, 1.0f );
|
|
|
|
Q_strncpy( from.dt_string, "test data check it's the same", sizeof( from.dt_string ));
|
|
from.dt_timewindow_big = timebase + 2.3456;
|
|
from.dt_timewindow_8 = timebase + 0.0234;
|
|
from.dt_angle = 160.245f;
|
|
from.dt_float_signed = -15.123f;
|
|
from.dt_float_unsigned = 1235.321f;
|
|
from.dt_integer_signed = -412784;
|
|
from.dt_integer_unsigned = 123453;
|
|
from.dt_short_signed = -12343;
|
|
from.dt_short_unsigned = 32131;
|
|
from.dt_byte_signed = 16;
|
|
from.dt_byte_unsigned = 218;
|
|
|
|
MSG_Init( &msg, "test message", buffer, sizeof( buffer ));
|
|
|
|
for( i = 0; i < dt->numFields; i++ )
|
|
Delta_WriteField( &msg, &dt->pFields[i], &null, &from, timebase );
|
|
|
|
MSG_SeekToBit( &msg, 0, SEEK_SET );
|
|
|
|
for( i = 0; i < dt->numFields; i++ )
|
|
Delta_ReadField( &msg, &dt->pFields[i], &null, &to, timebase );
|
|
|
|
Con_Printf( "struct as encoded to delta:\n" );
|
|
TASSERT_STR( from.dt_string, to.dt_string );
|
|
|
|
// the epsilon value is derived from multiplier value
|
|
TASSERT( Q_equal_e( from.dt_timewindow_big, to.dt_timewindow_big, 0.001f ));
|
|
|
|
// dt_timewindow_8 type has multiplier locked at 100.0f
|
|
TASSERT( Q_equal_e( from.dt_timewindow_8, to.dt_timewindow_8, 0.01f ));
|
|
TASSERT( Q_equal_e( from.dt_angle, to.dt_angle, 0.1f ));
|
|
TASSERT( Q_equal_e( from.dt_float_signed, to.dt_float_signed, 0.01f ));
|
|
|
|
// dt_float_unsigned has post-multiplier that doesn't affect network data
|
|
// and therefore should be reverted back when comparing
|
|
TASSERT( Q_equal_e( from.dt_float_unsigned, to.dt_float_unsigned * 10.f , 0.01f ));
|
|
|
|
TASSERT_EQi( from.dt_integer_signed, to.dt_integer_signed );
|
|
TASSERT_EQi( from.dt_integer_unsigned, to.dt_integer_unsigned );
|
|
TASSERT_EQi( from.dt_short_signed, to.dt_short_signed );
|
|
TASSERT(( from.dt_short_unsigned & ( 0xffff << 3 )) == to.dt_short_unsigned );
|
|
TASSERT_EQi( from.dt_byte_signed, to.dt_byte_signed );
|
|
TASSERT_EQi( from.dt_byte_unsigned, to.dt_byte_unsigned );
|
|
|
|
Con_Printf( "from.dt_timewindow_big = %f\n", from.dt_timewindow_big );
|
|
Con_Printf( "to.dt_timewindow_big = %f\n", to.dt_timewindow_big );
|
|
Con_Printf( "from.dt_timewindow_8 = %f\n", from.dt_timewindow_8 );
|
|
Con_Printf( "to.dt_timewindow_8 = %f\n", to.dt_timewindow_8 );
|
|
Con_Printf( "from.dt_angle = %f\n", from.dt_angle );
|
|
Con_Printf( "to.dt_angle = %f\n", to.dt_angle );
|
|
Con_Printf( "from.dt_float_signed = %f\n", from.dt_float_signed );
|
|
Con_Printf( "to.dt_float_signed = %f\n", to.dt_float_signed );
|
|
Con_Printf( "from.dt_float_unsigned = %f\n", from.dt_float_unsigned );
|
|
Con_Printf( "to.dt_float_unsigned = %f\n", to.dt_float_unsigned );
|
|
Con_Printf( "from.dt_integer_signed = %i\n", from.dt_integer_signed );
|
|
Con_Printf( "to.dt_integer_signed = %i\n", to.dt_integer_signed );
|
|
Con_Printf( "from.dt_integer_unsigned = %i\n", from.dt_integer_unsigned );
|
|
Con_Printf( "to.dt_integer_unsigned = %i\n", to.dt_integer_unsigned );
|
|
Con_Printf( "from.dt_short_signed = %i\n", from.dt_short_signed );
|
|
Con_Printf( "to.dt_short_signed = %i\n", to.dt_short_signed );
|
|
Con_Printf( "from.dt_short_unsigned = %i\n", from.dt_short_unsigned );
|
|
Con_Printf( "to.dt_short_unsigned = %i\n", to.dt_short_unsigned );
|
|
Con_Printf( "from.dt_byte_signed = %i\n", from.dt_byte_signed );
|
|
Con_Printf( "to.dt_byte_signed = %i\n", to.dt_byte_signed );
|
|
Con_Printf( "from.dt_byte_unsigned = %i\n", from.dt_byte_unsigned );
|
|
Con_Printf( "to.dt_byte_unsigned = %i\n", to.dt_byte_unsigned );
|
|
}
|
|
#endif // XASH_ENGINE_TESTS
|