netbuffer.cpp

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#include <assert.h>
#include "networking/lowlevel/netbuffer.h"
#include "networking/lowlevel/vsnet_oss.h"
#include "networking/const.h"
#include "posh.h"
#include "gfxlib_struct.h"
#include "networking/netversion.h"

std::string getSimpleString( std::string &input )
{
    int len = getSimpleInt( input );
    if ( len >= 0 && (unsigned int) len <= input.length() ) {
        std::string retval = input.substr( 0, len );
        input = input.substr( len );
        return retval;
    }
    return "";
}

char getSimpleChar( std::string &input )
{
    char retval = input[0];
    input = input.substr( 1 );
    return retval;
}

int getSimpleInt( std::string &input )
{
    std::string::size_type where = input.find( " " );
    if (where != string::npos) {
        std::string num = input.substr( 0, where );
        int len = XMLSupport::parse_int( num );
        input = input.substr( where+1 );
        return len;
    }
    return 0;
}

void addSimpleString( std::string &input, const std::string adder )
{
    addSimpleInt( input, adder.length() );
    input += adder;
}

void addSimpleChar( std::string &input, const char adder )
{
    char add[2] = {adder, '\0'};
    input += std::string( add, 1 );
}

void addSimpleInt( std::string &input, const int adder )
{
    input += XMLSupport::tostring( adder )+" ";
}

NetBuffer::NetBuffer()
{
    buffer = new char[MAXBUFFER];
    offset = 0;
    size   = MAXBUFFER;
    memset( buffer, 0x20, size );
    this->buffer[size-1] = 0;
    ver    = NETWORK_VERSION;
}

NetBuffer::NetBuffer( int bufsize )
{
    buffer = new char[bufsize];
    offset = 0;
    size   = bufsize;
    memset( buffer, 0x20, size );
    this->buffer[size-1] = 0;
    ver    = NETWORK_VERSION;
}

NetBuffer::NetBuffer( const char *buf, int bufsize )
{
    offset       = 0;
    ver          =
        size     = bufsize+1;
    this->buffer = new char[size];
    memset( buffer, 0x20, size );
    VsnetOSS::memcpy( buffer, buf, bufsize );
    this->buffer[size-1] = 0;
    ver = NETWORK_VERSION;
}

NetBuffer::~NetBuffer()
{
    if (buffer != NULL)
        delete[] buffer;
}

void NetBuffer::Reset()
{
    memset( buffer, 0x20, size );
    offset = 0;
}

char* NetBuffer::getData()
{
    return buffer;
}

void NetBuffer::setVersion( ObjSerial newver )
{
    ver = newver;
}

ObjSerial NetBuffer::version()
{
    return ver;
}

//Extends the buffer if we exceed its size
void NetBuffer::resizeBuffer( unsigned int newsize )
{
    if (size-1 < newsize) {
        char *tmp = new char[newsize+1];
        memset( tmp, 0, newsize+1 );
        VsnetOSS::memcpy( tmp, buffer, size );
        delete[] buffer;
        buffer = tmp;
        size   = newsize+1;
    }
}

//Check the buffer to see if we can still get info from it
bool NetBuffer::checkBuffer( int len, const char *fun )
{
    if (offset+len >= size) {
        std::cerr<<"!!! ERROR : trying to read more data than buffer size (offset="<<offset<<" - size="<<size<<" - to read="
                 <<len<<") in "<<fun<<" !!!"<<std::endl;

        //NETFIXME: Be more graceful... but this is nice for Debugging in GDB.
        int *x = NULL;
        ( const_cast< char* > (fun) )[0] += *x;

        return false;
    }
    return true;
}

enum NBType
{
    NB_CHAR=187,
    NB_SHORT,
    NB_SERIAL,
    NB_INT32,
    NB_UINT32,
    NB_FLOAT =123,
    NB_DOUBLE,
    NB_STRING=33,
    NB_BUFFER=44,
    NB_CLIENTSTATE=211,
    NB_TRANSFORMATION,
    NB_VECTOR,
    NB_QVECTOR,
    NB_COLOR,
    NB_MATRIX,
    NB_QUATERNION,
    NB_SHIELD,
    NB_ARMOR,
    NB_GFXMAT,
    NB_GFXLIGHT,
    NB_GFXLIGHTLOCAL,
};

#define NB_CASE( a ) \
case a:              \
    return #a; break
    
char typeerrbuf[32];

const char * getTypeStr( unsigned char c )
{
    switch (c)
    {
        NB_CASE( NB_CHAR );
        NB_CASE( NB_SHORT );
        NB_CASE( NB_SERIAL );
        NB_CASE( NB_INT32 );
        NB_CASE( NB_UINT32 );
        NB_CASE( NB_FLOAT );
        NB_CASE( NB_DOUBLE );
        NB_CASE( NB_STRING );
        NB_CASE( NB_BUFFER );
        NB_CASE( NB_CLIENTSTATE );
        NB_CASE( NB_TRANSFORMATION );
        NB_CASE( NB_VECTOR );
        NB_CASE( NB_QVECTOR );
        NB_CASE( NB_COLOR );
        NB_CASE( NB_MATRIX );
        NB_CASE( NB_QUATERNION );
        NB_CASE( NB_SHIELD );
        NB_CASE( NB_ARMOR );
        NB_CASE( NB_GFXMAT );
        NB_CASE( NB_GFXLIGHT );
        NB_CASE( NB_GFXLIGHTLOCAL );
    default:
        sprintf( typeerrbuf, "<<Byte %d>>", (int) c );
        return typeerrbuf;
    }
}

void NetBuffer::addType( unsigned char c )
{
    int tmpsize = sizeof (c);
    resizeBuffer( offset+tmpsize );
    VsnetOSS::memcpy( buffer+offset, &c, sizeof (c) );
    offset += tmpsize;
}

unsigned char NetBuffer::getType()
{
    unsigned char c;
    if ( !checkBuffer( sizeof (c), "getChar" ) )
        return 0;
    VsnetOSS::memcpy( &c, buffer+offset, sizeof (c) );
    offset += sizeof (c);
    return c;
}

bool NetBuffer::checkType( unsigned char c )
{
    const char   *typ = getTypeStr( c );
    checkBuffer( 1, typ );     //Does this type exist?
    unsigned char got = getType();
    if (got != c) {
        const char *typgot = getTypeStr( got );
        std::cerr<<"!!! ERROR : attempt to read invalid data at offset="<<offset<<": Actual type is a "<<typgot
                 <<" but I wanted a "<<typ<<" !!!"<<std::endl;

        //NETFIXME: Be more graceful... but this is nice for Debugging in GDB.
        int *x = NULL;
        ( const_cast< char* > (typ) )[0] += *x;

        return false;
    }
    return true;
}

#define NETBUF_DEBUG_CLISERV

#ifdef NETBUF_DEBUG_CLISERV
//Must be enabled or disabled on ALL CLIENTS and ALL SERVERS
//Since packets will be incompatible.
#define ADD_NB( type ) addType( type )
#define CHECK_NB( type ) checkType( type )
#else
#define ADD_NB( type )
#define CHECK_NB( type )
#endif

//NOTE : IMPORTANT - I ONLY INCREMENT OFFSET IN PRIMARY DATATYPES SINCE ALL OTHER ARE COMPOSED WITH THEM
void NetBuffer::addClientState( ClientState cs )
{
    ADD_NB( NB_CLIENTSTATE );
    //this->addFloat( cs.delay);
    this->addSerial( cs.client_serial );
    this->addTransformation( cs.pos );
    this->addVector( cs.veloc );
    this->addVector( cs.angveloc );
}

ClientState NetBuffer::getClientState()
{
    CHECK_NB( NB_CLIENTSTATE );
    ClientState cs;
    //cs.delay = this->getFloat();
    cs.client_serial = this->getSerial();
    cs.pos      = this->getTransformation();
    cs.veloc    = this->getVector();
    cs.angveloc = this->getVector();

    return cs;
}

void NetBuffer::addVector( Vector v )
{
    ADD_NB( NB_VECTOR );
    this->addFloat( v.i );
    this->addFloat( v.j );
    this->addFloat( v.k );
}

Vector NetBuffer::getVector()
{
    CHECK_NB( NB_VECTOR );
    Vector v;
    v.i = this->getFloat();
    v.j = this->getFloat();
    v.k = this->getFloat();

    return v;
}

void NetBuffer::addQVector( QVector v )
{
    ADD_NB( NB_QVECTOR );
    this->addDouble( v.i );
    this->addDouble( v.j );
    this->addDouble( v.k );
}

QVector NetBuffer::getQVector()
{
    CHECK_NB( NB_QVECTOR );
    QVector v;
    v.i = this->getDouble();
    v.j = this->getDouble();
    v.k = this->getDouble();
    return v;
}

void NetBuffer::addColor( GFXColor col )
{
    ADD_NB( NB_COLOR );
    this->addFloat( col.r );
    this->addFloat( col.g );
    this->addFloat( col.b );
    this->addFloat( col.a );
}

GFXColor NetBuffer::getColor()
{
    CHECK_NB( NB_COLOR );
    GFXColor col;
    col.r = this->getFloat();
    col.g = this->getFloat();
    col.b = this->getFloat();
    col.a = this->getFloat();
    return col;
}

void NetBuffer::addMatrix( Matrix m )
{
    ADD_NB( NB_MATRIX );
    for (int i = 0; i < 9; i++)
        this->addFloat( m.r[i] );
    this->addQVector( m.p );
}
Matrix NetBuffer::getMatrix()
{
    CHECK_NB( NB_MATRIX );
    Matrix m;
    for (int i = 0; i < 9; i++)
        m.r[i] = this->getFloat();
    m.p = this->getQVector();
    return m;
}
void NetBuffer::addQuaternion( Quaternion quat )
{
    ADD_NB( NB_QUATERNION );
    this->addFloat( quat.s );
    this->addVector( quat.v );
}
Quaternion NetBuffer::getQuaternion()
{
    CHECK_NB( NB_QUATERNION );
    Quaternion q;
    q.s = this->getFloat();
    q.v = this->getVector();
    return q;
}
void NetBuffer::addTransformation( Transformation trans )
{
    ADD_NB( NB_TRANSFORMATION );
    this->addQuaternion( trans.orientation );
    this->addQVector( trans.position );
}
Transformation NetBuffer::getTransformation()
{
    CHECK_NB( NB_TRANSFORMATION );
    Transformation t;
    t.orientation = this->getQuaternion();
    t.position    = this->getQVector();
    return t;
}

void NetBuffer::addShield( const Shield &shield )
{
    ADD_NB( NB_SHIELD );
    this->addChar( shield.number );
    this->addChar( shield.leak );
    this->addFloat( shield.recharge );
    this->addFloat( shield.efficiency );
    switch (shield.number)
    {
    case 2:
        this->addFloat( shield.shield2fb.front );
        this->addFloat( shield.shield2fb.back );
        this->addFloat( shield.shield2fb.frontmax );
        this->addFloat( shield.shield2fb.backmax );
        break;
    case 4:
        this->addFloat( shield.shield4fbrl.front );
        this->addFloat( shield.shield4fbrl.back );
        this->addFloat( shield.shield4fbrl.right );
        this->addFloat( shield.shield4fbrl.left );
        this->addFloat( shield.shield4fbrl.frontmax );
        this->addFloat( shield.shield4fbrl.backmax );
        this->addFloat( shield.shield4fbrl.rightmax );
        this->addFloat( shield.shield4fbrl.leftmax );
        break;
    case 8:
        this->addFloat( shield.shield8.frontrighttop );
        this->addFloat( shield.shield8.backrighttop );
        this->addFloat( shield.shield8.frontlefttop );
        this->addFloat( shield.shield8.backlefttop );
        this->addFloat( shield.shield8.frontrightbottom );
        this->addFloat( shield.shield8.backrightbottom );
        this->addFloat( shield.shield8.frontleftbottom );
        this->addFloat( shield.shield8.backleftbottom );
        this->addFloat( shield.shield8.frontrighttopmax );
        this->addFloat( shield.shield8.backrighttopmax );
        this->addFloat( shield.shield8.frontlefttopmax );
        this->addFloat( shield.shield8.backlefttopmax );
        this->addFloat( shield.shield8.frontrightbottommax );
        this->addFloat( shield.shield8.backrightbottommax );
        this->addFloat( shield.shield8.frontleftbottommax );
        this->addFloat( shield.shield8.backleftbottommax );
        break;
    }
}
Shield NetBuffer::getShield()
{
    CHECK_NB( NB_SHIELD );
    Shield shield;
    shield.number     = this->getChar();
    shield.leak       = this->getChar();
    shield.recharge   = this->getFloat();
    shield.efficiency = this->getFloat();
    switch (shield.number)
    {
    case 2:
        shield.shield2fb.front             = this->getFloat();
        shield.shield2fb.back              = this->getFloat();
        shield.shield2fb.frontmax          = this->getFloat();
        shield.shield2fb.backmax           = this->getFloat();
        break;
    case 4:
        shield.shield4fbrl.front           = this->getFloat();
        shield.shield4fbrl.back            = this->getFloat();
        shield.shield4fbrl.right           = this->getFloat();
        shield.shield4fbrl.left            = this->getFloat();
        shield.shield4fbrl.frontmax        = this->getFloat();
        shield.shield4fbrl.backmax         = this->getFloat();
        shield.shield4fbrl.rightmax        = this->getFloat();
        shield.shield4fbrl.leftmax         = this->getFloat();
        break;
    case 8:
        shield.shield8.frontrighttop       = this->getFloat();
        shield.shield8.backrighttop        = this->getFloat();
        shield.shield8.frontlefttop        = this->getFloat();
        shield.shield8.backlefttop         = this->getFloat();
        shield.shield8.frontrightbottom    = this->getFloat();
        shield.shield8.backrightbottom     = this->getFloat();
        shield.shield8.frontleftbottom     = this->getFloat();
        shield.shield8.backleftbottom      = this->getFloat();
        shield.shield8.frontrighttopmax    = this->getFloat();
        shield.shield8.backrighttopmax     = this->getFloat();
        shield.shield8.frontlefttopmax     = this->getFloat();
        shield.shield8.backlefttopmax      = this->getFloat();
        shield.shield8.frontrightbottommax = this->getFloat();
        shield.shield8.backrightbottommax  = this->getFloat();
        shield.shield8.frontleftbottommax  = this->getFloat();
        shield.shield8.backleftbottommax   = this->getFloat();
        break;
    }
    return shield;
}

void NetBuffer::addArmor( const Armor &armor )
{
    ADD_NB( NB_ARMOR );
    this->addFloat( armor.frontrighttop );
    this->addFloat( armor.backrighttop );
    this->addFloat( armor.frontlefttop );
    this->addFloat( armor.backlefttop );
    this->addFloat( armor.frontrightbottom );
    this->addFloat( armor.backrightbottom );
    this->addFloat( armor.frontleftbottom );
    this->addFloat( armor.backleftbottom );
}

Armor NetBuffer::getArmor()
{
    CHECK_NB( NB_ARMOR );
    Armor armor;
    armor.frontrighttop    = this->getFloat();
    armor.backrighttop     = this->getFloat();
    armor.frontlefttop     = this->getFloat();
    armor.backlefttop      = this->getFloat();
    armor.frontrightbottom = this->getFloat();
    armor.backrightbottom  = this->getFloat();
    armor.frontleftbottom  = this->getFloat();
    armor.backleftbottom   = this->getFloat();

    return armor;
}

void NetBuffer::addSerial( ObjSerial serial )
{
    ADD_NB( NB_SERIAL );
    this->addShort( serial );
}

ObjSerial NetBuffer::getSerial()
{
    CHECK_NB( NB_SERIAL );
    return this->getShort();
}

void NetBuffer::addFloat( float f )
{
    ADD_NB( NB_FLOAT );
    int tmpsize     = sizeof (f);
    resizeBuffer( offset+tmpsize );
    posh_u32_t bits = POSH_BigFloatBits( f );
    *( (posh_u32_t*) (this->buffer+offset) ) = bits;
    offset += tmpsize;
}

float NetBuffer::getFloat()
{
    CHECK_NB( NB_FLOAT );
    float s;
    if ( !checkBuffer( sizeof (s), "getFloat" ) )
        return 0;
    posh_u32_t bits = *( (posh_u32_t*) (this->buffer+offset) );
    s = POSH_FloatFromBigBits( bits );
    offset += sizeof (s);
    return s;
}

void NetBuffer::addFloat8( float f )
{
    if (version() < 4500) {
        addFloat( f );
    } else {
        unsigned char ch;
        if (f > 1.0) ch = 255;
        else if (f < 0.0)
            ch = 0;
        else ch = (unsigned char) (f*255);
        char sch( ch );
        addChar( sch );
    }
}

float NetBuffer::getFloat8()
{
    if (version() < 4500) {
        return getFloat();
    } else {
        char sch( getChar() );
        unsigned char ch( sch );
        return ( (float) ch )/255.0;
    }
}

void NetBuffer::addDouble( double d )
{
    ADD_NB( NB_DOUBLE );
    int tmpsize = sizeof (d);
    resizeBuffer( offset+tmpsize );
    POSH_DoubleBits( d, (posh_byte_t*) this->buffer+offset );
    offset += tmpsize;
}

double NetBuffer::getDouble()
{
    CHECK_NB( NB_DOUBLE );
    double s;
    if ( !checkBuffer( sizeof (s), "getDouble" ) )
        return 0;
    s = POSH_DoubleFromBits( (posh_byte_t*) this->buffer+offset );
    offset += sizeof (s);
    return s;
}

void NetBuffer::addShort( unsigned short s )
{
    ADD_NB( NB_SHORT );
    int tmpsize = sizeof (s);
    resizeBuffer( offset+tmpsize );
    POSH_WriteU16ToBig( this->buffer+offset, s );
    offset += tmpsize;
}

unsigned short NetBuffer::getShort()
{
    CHECK_NB( NB_SHORT );
    unsigned short s;
    if ( !checkBuffer( sizeof (s), "getShort" ) )
        return 0;
    s = POSH_ReadU16FromBig( this->buffer+offset );
    //cerr<<"getShort :: offset="<<offset<<" - length="<<sizeof( s)<<" - value="<<s<<endl;
    offset += sizeof (s);
    return s;
}

void NetBuffer::addInt32( int i )
{
    ADD_NB( NB_INT32 );
    int tmpsize = sizeof (i);
    resizeBuffer( offset+tmpsize );
    POSH_WriteS32ToBig( this->buffer+offset, i );
    offset += tmpsize;
}

int NetBuffer::getInt32()
{
    CHECK_NB( NB_INT32 );
    int s;
    if ( !checkBuffer( sizeof (s), "getInt32" ) )
        return 0;
    s = POSH_ReadS32FromBig( this->buffer+offset );
    offset += sizeof (s);
    return s;
}

void NetBuffer::addUInt32( unsigned int i )
{
    ADD_NB( NB_UINT32 );
    int tmpsize = sizeof (i);
    resizeBuffer( offset+tmpsize );
    POSH_WriteU32ToBig( this->buffer+offset, i );
    offset += tmpsize;
}

unsigned int NetBuffer::getUInt32()
{
    CHECK_NB( NB_UINT32 );
    unsigned int s;
    if ( !checkBuffer( sizeof (s), "getUInt32" ) )
        return 0;
    s = POSH_ReadU32FromBig( this->buffer+offset );
    offset += sizeof (s);
    return s;
}

void NetBuffer::addChar( char c )
{
    ADD_NB( NB_CHAR );
    int tmpsize = sizeof (c);
    resizeBuffer( offset+tmpsize );
    VsnetOSS::memcpy( buffer+offset, &c, sizeof (c) );
    offset += tmpsize;
}

char NetBuffer::getChar()
{
    CHECK_NB( NB_CHAR );
    char c;
    if ( !checkBuffer( sizeof (c), "getChar" ) )
        return 0;
    VsnetOSS::memcpy( &c, buffer+offset, sizeof (c) );
    offset += sizeof (c);
    return c;
}

void NetBuffer::addBuffer( const unsigned char *buf, int bufsize )
{
    ADD_NB( NB_BUFFER );
    resizeBuffer( offset+bufsize );
    VsnetOSS::memcpy( buffer+offset, buf, bufsize );
    offset += bufsize;
}

unsigned char* NetBuffer::extAddBuffer( int bufsize )
{
    ADD_NB( NB_BUFFER );
    resizeBuffer( offset+bufsize );
    unsigned char *retval = (unsigned char*) buffer+offset;
    offset += bufsize;
    return retval;
}

static unsigned char null = '\0';

unsigned char* NetBuffer::getBuffer( int offt )
{
    CHECK_NB( NB_BUFFER );
    if ( !checkBuffer( offt, "getBuffer" ) )
        return &null;
    unsigned char *tmp = (unsigned char*) buffer+offset;
    offset += offt;
    return tmp;
}

//Add and get a string with its length before the char * buffer part
void NetBuffer::addString( const string &str )
{
    ADD_NB( NB_STRING );
    unsigned int len = str.length();
    if (len < 0xffff) {
        unsigned short length = len;
        this->addShort( length );
        resizeBuffer( offset+length );
        VsnetOSS::memcpy( buffer+offset, str.c_str(), length );
        offset += length;
    } else {
        assert( len < 0xffffffff );
        this->addShort( 0xffff );
        this->addInt32( len );
        resizeBuffer( offset+len );
        VsnetOSS::memcpy( buffer+offset, str.c_str(), len );
        offset += len;
    }
}

string NetBuffer::getString()
{
    CHECK_NB( NB_STRING );
    unsigned short s;
    s = this->getShort();
    if (s != 0xffff) {
        if ( !checkBuffer( s, "getString" ) )
            return std::string();
        char   c = buffer[offset+s];
        buffer[offset+s] = 0;
        string str( buffer+offset );
        buffer[offset+s] = c;
        offset += s;

        return str;
    } else {
        //NETFIXME: Possible DOS attack here...
        unsigned int len = this->getInt32();
        if ( !checkBuffer( len, "getString" ) )
            return std::string();
        char   c = buffer[offset+len];
        buffer[offset+len] = 0;
        string str( buffer+offset );
        buffer[offset+len] = c;
        offset += len;

        return str;
    }
}

GFXMaterial NetBuffer::getGFXMaterial()
{
    CHECK_NB( NB_GFXMAT );
    GFXMaterial mat;

    mat.ar    = this->getFloat();
    mat.ag    = this->getFloat();
    mat.ab    = this->getFloat();
    mat.aa    = this->getFloat();

    mat.dr    = this->getFloat();
    mat.dg    = this->getFloat();
    mat.db    = this->getFloat();
    mat.da    = this->getFloat();

    mat.sr    = this->getFloat();
    mat.sg    = this->getFloat();
    mat.sb    = this->getFloat();
    mat.sa    = this->getFloat();

    mat.er    = this->getFloat();
    mat.eg    = this->getFloat();
    mat.eb    = this->getFloat();
    mat.ea    = this->getFloat();

    mat.power = this->getFloat();
    return mat;
}

void NetBuffer::addGFXMaterial( const GFXMaterial &mat )
{
    ADD_NB( NB_GFXMAT );
    this->addFloat( mat.ar );
    this->addFloat( mat.ag );
    this->addFloat( mat.ab );
    this->addFloat( mat.aa );

    this->addFloat( mat.dr );
    this->addFloat( mat.dg );
    this->addFloat( mat.db );
    this->addFloat( mat.da );

    this->addFloat( mat.sr );
    this->addFloat( mat.sg );
    this->addFloat( mat.sb );
    this->addFloat( mat.sa );

    this->addFloat( mat.er );
    this->addFloat( mat.eg );
    this->addFloat( mat.eb );
    this->addFloat( mat.ea );

    this->addFloat( mat.power );
}

GFXLight NetBuffer::getGFXLight()
{
    CHECK_NB( NB_GFXLIGHT );
    GFXLight light;
    int i = 0;
    light.target  = this->getInt32();
    for (i = 0; i < 3; i++)
        light.vect[i] = this->getFloat();
    light.options = this->getInt32();
    for (i = 0; i < 4; i++)
        light.diffuse[i] = this->getFloat();
    for (i = 0; i < 4; i++)
        light.specular[i] = this->getFloat();
    for (i = 0; i < 4; i++)
        light.ambient[i] = this->getFloat();
    for (i = 0; i < 3; i++)
        light.attenuate[i] = this->getFloat();
    for (i = 0; i < 3; i++)
        light.direction[i] = this->getFloat();
    light.exp    = this->getFloat();
    light.cutoff = this->getFloat();

    return light;
}

void NetBuffer::addGFXLight( const GFXLight &light )
{
    ADD_NB( NB_GFXLIGHT );
    int i = 0;
    this->addInt32( light.target );
    for (i = 0; i < 3; i++)
        this->addFloat( light.vect[i] );
    this->addInt32( light.options );
    for (i = 0; i < 4; i++)
        this->addFloat( light.diffuse[i] );
    for (i = 0; i < 4; i++)
        this->addFloat( light.specular[i] );
    for (i = 0; i < 4; i++)
        this->addFloat( light.ambient[i] );
    for (i = 0; i < 3; i++)
        this->addFloat( light.attenuate[i] );
    for (i = 0; i < 3; i++)
        this->addFloat( light.direction[i] );
    this->addFloat( light.exp );
    this->addFloat( light.cutoff );
}

GFXLightLocal NetBuffer::getGFXLightLocal()
{
    CHECK_NB( NB_GFXLIGHTLOCAL );
    GFXLightLocal light;
    light.ligh    = this->getGFXLight();
    light.islocal = this->getChar();
    return light;
}

void NetBuffer::addGFXLightLocal( const GFXLightLocal &light )
{
    ADD_NB( NB_GFXLIGHTLOCAL );
    this->addGFXLight( light.ligh );
    this->addChar( light.islocal );
}

unsigned int NetBuffer::getDataLength()
{
    return offset;
}

unsigned int NetBuffer::getSize()
{
    return size;
}