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jedioutcast/code/qcommon/msg.cpp

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Jedi Outcast v054
2013-04-04 14:52:42 +00:00
#include "../game/q_shared.h"
#include "qcommon.h"
/*
==============================================================================
MESSAGE IO FUNCTIONS
Handles byte ordering and avoids alignment errors
==============================================================================
*/
void MSG_Init( msg_t *buf, byte *data, int length ) {
memset (buf, 0, sizeof(*buf));
buf->data = data;
buf->maxsize = length;
}
void MSG_Clear( msg_t *buf ) {
buf->cursize = 0;
buf->overflowed = qfalse;
buf->bit = 0;
}
void MSG_BeginReading( msg_t *msg ) {
msg->readcount = 0;
msg->bit = 0;
}
void MSG_ReadByteAlign( msg_t *buf ) {
// round up to the next byte
if ( buf->bit ) {
buf->bit = 0;
buf->readcount++;
}
}
void *MSG_GetSpace( msg_t *buf, int length ) {
void *data;
// round up to the next byte
if ( buf->bit ) {
buf->bit = 0;
buf->cursize++;
}
if ( buf->cursize + length > buf->maxsize ) {
if ( !buf->allowoverflow ) {
Com_Error (ERR_FATAL, "MSG_GetSpace: overflow without allowoverflow set");
}
if ( length > buf->maxsize ) {
Com_Error (ERR_FATAL, "MSG_GetSpace: %i is > full buffer size", length);
}
Com_Printf ("MSG_GetSpace: overflow\n");
MSG_Clear (buf);
buf->overflowed = qtrue;
}
data = buf->data + buf->cursize;
buf->cursize += length;
return data;
}
void MSG_WriteData( msg_t *buf, const void *data, int length ) {
memcpy (MSG_GetSpace(buf,length),data,length);
}
/*
=============================================================================
bit functions
=============================================================================
*/
int overflows;
// negative bit values include signs
void MSG_WriteBits( msg_t *msg, int value, int bits ) {
int put;
int fraction;
// this isn't an exact overflow check, but close enough
if ( msg->maxsize - msg->cursize < 4 ) {
msg->overflowed = qtrue;
#ifndef FINAL_BUILD
Com_Printf (S_COLOR_RED"MSG_WriteBits: buffer Full writing %d in %d bits\n", value, bits);
#endif
return;
}
if ( bits == 0 || bits < -31 || bits > 32 ) {
Com_Error( ERR_DROP, "MSG_WriteBits: bad bits %i", bits );
}
// check for overflows
if ( bits != 32 ) {
if ( bits > 0 ) {
if ( value > ( ( 1 << bits ) - 1 ) || value < 0 ) {
overflows++;
#ifndef FINAL_BUILD
#ifdef _DEBUG
Com_Printf (S_COLOR_RED"MSG_WriteBits: overflow writing %d in %d bits\n", value, bits);
#endif
#endif
}
} else {
int r;
r = 1 << (bits-1);
if ( value > r - 1 || value < -r ) {
overflows++;
#ifndef FINAL_BUILD
#ifdef _DEBUG
Com_Printf (S_COLOR_RED"MSG_WriteBits: overflow writing %d in %d bits\n", value, bits);
#endif
#endif
}
}
}
if ( bits < 0 ) {
bits = -bits;
}
while ( bits ) {
if ( msg->bit == 0 ) {
msg->data[msg->cursize] = 0;
msg->cursize++;
}
put = 8 - msg->bit;
if ( put > bits ) {
put = bits;
}
fraction = value & ( ( 1 << put ) - 1 );
msg->data[msg->cursize - 1] |= fraction << msg->bit;
bits -= put;
value >>= put;
msg->bit = ( msg->bit + put ) & 7;
}
}
int MSG_ReadBits( msg_t *msg, int bits ) {
int value;
int valueBits;
int get;
int fraction;
qboolean sgn;
value = 0;
valueBits = 0;
if ( bits < 0 ) {
bits = -bits;
sgn = qtrue;
} else {
sgn = qfalse;
}
while ( valueBits < bits ) {
if ( msg->bit == 0 ) {
msg->readcount++;
assert (msg->readcount <= msg->cursize);
}
get = 8 - msg->bit;
if ( get > (bits - valueBits) ) {
get = (bits - valueBits);
}
fraction = msg->data[msg->readcount - 1];
fraction >>= msg->bit;
fraction &= ( 1 << get ) - 1;
value |= fraction << valueBits;
valueBits += get;
msg->bit = ( msg->bit + get ) & 7;
}
if ( sgn ) {
if ( value & ( 1 << ( bits - 1 ) ) ) {
value |= -1 ^ ( ( 1 << bits ) - 1 );
}
}
return value;
}
//================================================================================
//
// writing functions
//
void MSG_WriteByte( msg_t *sb, int c ) {
#ifdef PARANOID
if (c < 0 || c > 255)
Com_Error (ERR_FATAL, "MSG_WriteByte: range error");
#endif
MSG_WriteBits( sb, c, 8 );
}
void MSG_WriteShort( msg_t *sb, int c ) {
#ifdef PARANOID
if (c < ((short)0x8000) || c > (short)0x7fff)
Com_Error (ERR_FATAL, "MSG_WriteShort: range error");
#endif
MSG_WriteBits( sb, c, 16 );
}
static void MSG_WriteSShort( msg_t *sb, int c ) {
MSG_WriteBits( sb, c, -16 );
}
void MSG_WriteLong( msg_t *sb, int c ) {
MSG_WriteBits( sb, c, 32 );
}
void MSG_WriteString( msg_t *sb, const char *s ) {
if ( !s ) {
MSG_WriteData (sb, "", 1);
} else {
int l, i;
char string[MAX_STRING_CHARS];
l = strlen( s );
if ( l >= MAX_STRING_CHARS ) {
Com_Printf( "MSG_WriteString: MAX_STRING_CHARS" );
MSG_WriteData (sb, "", 1);
return;
}
Q_strncpyz( string, s, sizeof( string ) );
// get rid of 0xff chars, because old clients don't like them
for ( i = 0 ; i < l ; i++ ) {
if ( ((byte *)string)[i] > 127 ) {
string[i] = '.';
}
}
MSG_WriteData (sb, string, l+1);
}
}
//============================================================
//
// reading functions
//
// returns -1 if no more characters are available
int MSG_ReadByte( msg_t *msg ) {
int c;
if ( msg->readcount+1 > msg->cursize ) {
c = -1;
} else {
c = (unsigned char)MSG_ReadBits( msg, 8 );
}
return c;
}
int MSG_ReadShort( msg_t *msg ) {
int c;
if ( msg->readcount+2 > msg->cursize ) {
c = -1;
} else {
c = MSG_ReadBits( msg, 16 );
}
return c;
}
static int MSG_ReadSShort( msg_t *msg ) {
int c;
if ( msg->readcount+2 > msg->cursize ) {
c = -1;
} else {
c = MSG_ReadBits( msg, -16 );
}
return c;
}
int MSG_ReadLong( msg_t *msg ) {
int c;
if ( msg->readcount+4 > msg->cursize ) {
c = -1;
} else {
c = MSG_ReadBits( msg, 32 );
}
return c;
}
char *MSG_ReadString( msg_t *msg ) {
static char string[MAX_STRING_CHARS];
int l,c;
MSG_ReadByteAlign( msg );
l = 0;
do {
c = MSG_ReadByte(msg); // use ReadByte so -1 is out of bounds
if ( c == -1 || c == 0 ) {
break;
}
// translate all fmt spec to avoid crash bugs
if ( c == '%' ) {
c = '.';
}
string[l] = c;
l++;
} while (l < sizeof(string)-1);
string[l] = 0;
return string;
}
char *MSG_ReadStringLine( msg_t *msg ) {
static char string[MAX_STRING_CHARS];
int l,c;
MSG_ReadByteAlign( msg );
l = 0;
do {
c = MSG_ReadByte(msg); // use ReadByte so -1 is out of bounds
if (c == -1 || c == 0 || c == '\n') {
break;
}
// translate all fmt spec to avoid crash bugs
if ( c == '%' ) {
c = '.';
}
string[l] = c;
l++;
} while (l < sizeof(string)-1);
string[l] = 0;
return string;
}
void MSG_ReadData( msg_t *msg, void *data, int len ) {
int i;
MSG_ReadByteAlign( msg );
for (i=0 ; i<len ; i++) {
((byte *)data)[i] = MSG_ReadByte (msg);
}
}
/*
=============================================================================
delta functions
=============================================================================
*/
extern cvar_t *cl_shownet;
#define LOG(x) if( cl_shownet->integer == 4 ) { Com_Printf("%s ", x ); };
void MSG_WriteDelta( msg_t *msg, int oldV, int newV, int bits ) {
if ( oldV == newV ) {
MSG_WriteBits( msg, 0, 1 );
return;
}
MSG_WriteBits( msg, 1, 1 );
MSG_WriteBits( msg, newV, bits );
}
int MSG_ReadDelta( msg_t *msg, int oldV, int bits ) {
if ( MSG_ReadBits( msg, 1 ) ) {
return MSG_ReadBits( msg, bits );
}
return oldV;
}
void MSG_WriteDeltaFloat( msg_t *msg, float oldV, float newV ) {
if ( oldV == newV ) {
MSG_WriteBits( msg, 0, 1 );
return;
}
MSG_WriteBits( msg, 1, 1 );
MSG_WriteBits( msg, *(int *)&newV, 32 );
}
float MSG_ReadDeltaFloat( msg_t *msg, float oldV ) {
if ( MSG_ReadBits( msg, 1 ) ) {
float newV;
*(int *)&newV = MSG_ReadBits( msg, 32 );
return newV;
}
return oldV;
}
/*
============================================================================
usercmd_t communication
============================================================================
*/
// ms is allways sent, the others are optional
#define CM_ANGLE1 (1<<0)
#define CM_ANGLE2 (1<<1)
#define CM_ANGLE3 (1<<2)
#define CM_FORWARD (1<<3)
#define CM_SIDE (1<<4)
#define CM_UP (1<<5)
#define CM_BUTTONS (1<<6)
#define CM_WEAPON (1<<7)
/*
=====================
MSG_WriteDeltaUsercmd
=====================
*/
void MSG_WriteDeltaUsercmd( msg_t *msg, usercmd_t *from, usercmd_t *to ) {
MSG_WriteDelta( msg, from->serverTime, to->serverTime, 32 );
MSG_WriteDelta( msg, from->angles[0], to->angles[0], 16 );
MSG_WriteDelta( msg, from->angles[1], to->angles[1], 16 );
MSG_WriteDelta( msg, from->angles[2], to->angles[2], 16 );
MSG_WriteDelta( msg, from->forwardmove, to->forwardmove, -8 );
MSG_WriteDelta( msg, from->rightmove, to->rightmove, -8 );
MSG_WriteDelta( msg, from->upmove, to->upmove, -8 );
MSG_WriteDelta( msg, from->buttons, to->buttons, 16 );//FIXME: We're only really using 9 bits...can this be changed to that?
MSG_WriteDelta( msg, from->weapon, to->weapon, 8 );
}
/*
=====================
MSG_ReadDeltaUsercmd
=====================
*/
void MSG_ReadDeltaUsercmd( msg_t *msg, usercmd_t *from, usercmd_t *to ) {
to->serverTime = MSG_ReadDelta( msg, from->serverTime, 32);
to->angles[0] = MSG_ReadDelta( msg, from->angles[0], 16);
to->angles[1] = MSG_ReadDelta( msg, from->angles[1], 16);
to->angles[2] = MSG_ReadDelta( msg, from->angles[2], 16);
to->forwardmove = MSG_ReadDelta( msg, from->forwardmove, -8);
to->rightmove = MSG_ReadDelta( msg, from->rightmove, -8);
to->upmove = MSG_ReadDelta( msg, from->upmove, -8);
to->buttons = MSG_ReadDelta( msg, from->buttons, 16);//FIXME: We're only really using 9 bits...can this be changed to that?
to->weapon = MSG_ReadDelta( msg, from->weapon, 8);
}
/*
=============================================================================
entityState_t communication
=============================================================================
*/
typedef struct {
char *name;
int offset;
int bits; // 0 = float
} netField_t;
// using the stringizing operator to save typing...
#define NETF(x) #x,(int)&((entityState_t*)0)->x
const netField_t entityStateFields[] =
{
{ NETF(eType), 8 },
{ NETF(eFlags), 32 },
{ NETF(pos.trType), 8 },
{ NETF(pos.trTime), 32 },
{ NETF(pos.trDuration), 32 },
{ NETF(pos.trBase[0]), 0 },
{ NETF(pos.trBase[1]), 0 },
{ NETF(pos.trBase[2]), 0 },
{ NETF(pos.trDelta[0]), 0 },
{ NETF(pos.trDelta[1]), 0 },
{ NETF(pos.trDelta[2]), 0 },
{ NETF(apos.trType), 8 },
{ NETF(apos.trTime), 32 },
{ NETF(apos.trDuration), 32 },
{ NETF(apos.trBase[0]), 0 },
{ NETF(apos.trBase[1]), 0 },
{ NETF(apos.trBase[2]), 0 },
{ NETF(apos.trDelta[0]), 0 },
{ NETF(apos.trDelta[1]), 0 },
{ NETF(apos.trDelta[2]), 0 },
{ NETF(time), 32 },
{ NETF(time2), 32 },
{ NETF(origin[0]), 0 },
{ NETF(origin[1]), 0 },
{ NETF(origin[2]), 0 },
{ NETF(origin2[0]), 0 },
{ NETF(origin2[1]), 0 },
{ NETF(origin2[2]), 0 },
{ NETF(angles[0]), 0 },
{ NETF(angles[1]), 0 },
{ NETF(angles[2]), 0 },
{ NETF(angles2[0]), 0 },
{ NETF(angles2[1]), 0 },
{ NETF(angles2[2]), 0 },
{ NETF(otherEntityNum), GENTITYNUM_BITS },
{ NETF(otherEntityNum2), GENTITYNUM_BITS },
{ NETF(groundEntityNum), GENTITYNUM_BITS },
{ NETF(constantLight), 32 },
{ NETF(loopSound), 16 },
{ NETF(modelindex), 9 }, //0 to 511
{ NETF(modelindex2), 8 },
{ NETF(modelindex3), 8 },
{ NETF(clientNum), 32 },
{ NETF(frame), 16 },
{ NETF(solid), 24 },
{ NETF(event), 10 },
{ NETF(eventParm), 16 },
{ NETF(powerups), 16 },
{ NETF(weapon), 8 },
{ NETF(legsAnim), 16 },
{ NETF(legsAnimTimer), 8 },
{ NETF(torsoAnim), 16 },
{ NETF(torsoAnimTimer), 8 },
{ NETF(scale), 8 },
{ NETF(saberInFlight), 4 },
{ NETF(saberActive), 4 },
{ NETF(vehicleModel), 32 },
/*
Ghoul2 Insert Start
*/
{ NETF(modelScale[0]), 0 },
{ NETF(modelScale[1]), 0 },
{ NETF(modelScale[2]), 0 },
{ NETF(radius), 16 },
{ NETF(boltInfo), 32 },
//{ NETF(ghoul2), 32 },
//loadsavecrash
//#if _DEBUG
//
//{ NETF(mins[0]), 0 },
//{ NETF(mins[1]), 0 },
//{ NETF(mins[2]), 0 },
//{ NETF(maxs[0]), 0 },
//{ NETF(maxs[1]), 0 },
//{ NETF(maxs[2]), 0 }
//#endif
};
// if (int)f == f and (int)f + ( 1<<(FLOAT_INT_BITS-1) ) < ( 1 << FLOAT_INT_BITS )
// the float will be sent with FLOAT_INT_BITS, otherwise all 32 bits will be sent
#define FLOAT_INT_BITS 13
#define FLOAT_INT_BIAS (1<<(FLOAT_INT_BITS-1))
void MSG_WriteField (msg_t *msg, const int *toF, const netField_t *field)
{
int trunc;
float fullFloat;
if ( field->bits == -1)
{ // a -1 in the bits field means it's a float that's always between -1 and 1
int temp = *(float *)toF * 32767;
MSG_WriteBits( msg, temp, -16 );
}
else
if ( field->bits == 0 ) {
// float
fullFloat = *(float *)toF;
trunc = (int)fullFloat;
if (fullFloat == 0.0f) {
MSG_WriteBits( msg, 0, 1 ); //it's a zero
} else {
MSG_WriteBits( msg, 1, 1 ); //not a zero
if ( trunc == fullFloat && trunc + FLOAT_INT_BIAS >= 0 &&
trunc + FLOAT_INT_BIAS < ( 1 << FLOAT_INT_BITS ) ) {
// send as small integer
MSG_WriteBits( msg, 0, 1 );
MSG_WriteBits( msg, trunc + FLOAT_INT_BIAS, FLOAT_INT_BITS );
} else {
// send as full floating point value
MSG_WriteBits( msg, 1, 1 );
MSG_WriteBits( msg, *toF, 32 );
}
}
} else {
if (*toF == 0) {
MSG_WriteBits( msg, 0, 1 ); //it's a zero
} else {
MSG_WriteBits( msg, 1, 1 ); //not a zero
// integer
MSG_WriteBits( msg, *toF, field->bits );
}
}
}
void MSG_ReadField (msg_t *msg, int *toF, const netField_t *field, int print)
{
int trunc;
if ( field->bits == -1)
{ // a -1 in the bits field means it's a float that's always between -1 and 1
int temp = MSG_ReadBits( msg, -16);
*(float *)toF = (float)temp / 32767;
}
else
if ( field->bits == 0 ) {
// float
if ( MSG_ReadBits( msg, 1 ) == 0 ) {
*(float *)toF = 0.0f;
} else {
if ( MSG_ReadBits( msg, 1 ) == 0 ) {
// integral float
trunc = MSG_ReadBits( msg, FLOAT_INT_BITS );
// bias to allow equal parts positive and negative
trunc -= FLOAT_INT_BIAS;
*(float *)toF = trunc;
if ( print ) {
Com_Printf( "%s:%i ", field->name, trunc );
}
} else {
// full floating point value
*toF = MSG_ReadBits( msg, 32 );
if ( print ) {
Com_Printf( "%s:%f ", field->name, *(float *)toF );
}
}
}
} else {
if ( MSG_ReadBits( msg, 1 ) == 0 ) {
*toF = 0;
} else {
// integer
*toF = MSG_ReadBits( msg, field->bits );
if ( print ) {
Com_Printf( "%s:%i ", field->name, *toF );
}
}
}
}
/*
==================
MSG_WriteDeltaEntity
GENTITYNUM_BITS 1 : remove this entity
GENTITYNUM_BITS 0 1 SMALL_VECTOR_BITS <data>
GENTITYNUM_BITS 0 0 LARGE_VECTOR_BITS >data>
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( msg_t *msg, struct entityState_s *from, struct entityState_s *to,
qboolean force ) {
int c;
int i;
const netField_t *field;
int *fromF, *toF;
int blah;
bool stuffChanged = false;
const int numFields = sizeof(entityStateFields)/sizeof(entityStateFields[0]);
byte changeVector[(numFields/8) + 1];
// all fields should be 32 bits to avoid any compiler packing issues
// the "number" field is not part of the field list
// if this assert fails, someone added a field to the entityState_t
// struct without updating the message fields
blah = sizeof( *from );
assert( numFields + 1 == blah/4);
c = msg->cursize;
// a NULL to is a delta remove message
if ( to == NULL ) {
if ( from == NULL ) {
return;
}
MSG_WriteBits( msg, from->number, GENTITYNUM_BITS );
MSG_WriteBits( msg, 1, 1 );
return;
}
if ( to->number < 0 || to->number >= MAX_GENTITIES ) {
Com_Error (ERR_FATAL, "MSG_WriteDeltaEntity: Bad entity number: %i", to->number );
}
memset(changeVector, 0, sizeof(changeVector));
// build the change vector as bytes so it is endien independent
for ( i = 0, field = entityStateFields ; i < numFields ; i++, field++ ) {
fromF = (int *)( (byte *)from + field->offset );
toF = (int *)( (byte *)to + field->offset );
if ( *fromF != *toF ) {
changeVector[ i>>3 ] |= 1 << ( i & 7 );
stuffChanged = true;
}
}
if ( stuffChanged )
{
MSG_WriteBits( msg, to->number, GENTITYNUM_BITS );
MSG_WriteBits( msg, 0, 1 ); // not removed
MSG_WriteBits( msg, 1, 1 ); // we have a delta
// we need to write the entire delta
for ( i = 0 ; i + 8 <= numFields ; i += 8 ) {
MSG_WriteByte( msg, changeVector[i>>3] );
}
if ( numFields & 7 ) {
MSG_WriteBits( msg, changeVector[i>>3], numFields & 7 );
}
for ( i = 0, field = entityStateFields ; i < numFields ; i++, field++ ) {
fromF = (int *)( (byte *)from + field->offset );
toF = (int *)( (byte *)to + field->offset );
if ( *fromF == *toF ) {
continue;
}
MSG_WriteField(msg, toF, field);
}
}
else
{
// nothing at all changed
// write two bits for no change
MSG_WriteBits( msg, to->number, GENTITYNUM_BITS );
MSG_WriteBits( msg, 0, 1 ); // not removed
MSG_WriteBits( msg, 0, 1 ); // no delta
}
c = msg->cursize - c;
}
/*
==================
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, entityState_t->number will be set to MAX_GENTITIES-1
Can go from either a baseline or a previous packet_entity
==================
*/
extern cvar_t *cl_shownet;
void MSG_ReadDeltaEntity( msg_t *msg, entityState_t *from, entityState_t *to, int number)
{
int i;
const netField_t *field;
int *fromF, *toF;
int print = 0;
int startBit, endBit;
const int numFields = sizeof(entityStateFields)/sizeof(entityStateFields[0]);
byte expandedVector[(numFields/8) + 1];
if ( number < 0 || number >= MAX_GENTITIES) {
Com_Error( ERR_DROP, "Bad delta entity number: %i", number );
}
if ( msg->bit == 0 ) {
startBit = msg->readcount * 8 - GENTITYNUM_BITS;
} else {
startBit = ( msg->readcount - 1 ) * 8 + msg->bit - GENTITYNUM_BITS;
}
// check for a remove
if ( MSG_ReadBits( msg, 1 ) == 1 ) {
memset( to, 0, sizeof( *to ) );
to->number = MAX_GENTITIES - 1;
if ( cl_shownet->integer >= 2 || cl_shownet->integer == -1 ) {
Com_Printf( "%3i: #%-3i remove\n", msg->readcount, number );
}
return;
}
// check for no delta
if ( MSG_ReadBits( msg, 1 ) != 0 )
{
const int numFields = sizeof(entityStateFields)/sizeof(entityStateFields[0]);
// shownet 2/3 will interleave with other printed info, -1 will
// just print the delta records`
if ( cl_shownet->integer >= 2 || cl_shownet->integer == -1 ) {
print = 1;
Com_Printf( "%3i: #%-3i ", msg->readcount, to->number );
} else {
print = 0;
}
// we need to write the entire delta
for ( i = 0 ; i + 8 <= numFields ; i += 8 ) {
expandedVector[i>>3] = MSG_ReadByte( msg );
}
if ( numFields & 7 ) {
expandedVector[i>>3] = MSG_ReadBits( msg, numFields & 7 );
}
to->number = number;
for ( i = 0, field = entityStateFields ; i < numFields ; i++, field++ ) {
fromF = (int *)( (byte *)from + field->offset );
toF = (int *)( (byte *)to + field->offset );
if ( ! ( expandedVector[ i >> 3 ] & ( 1 << ( i & 7 ) ) ) ) {
// no change
*toF = *fromF;
} else {
MSG_ReadField(msg, toF, field, print);
}
}
}
else
{
memcpy(to, from,sizeof(entityState_t));
to->number = number;
}
if ( print ) {
if ( msg->bit == 0 ) {
endBit = msg->readcount * 8 - GENTITYNUM_BITS;
} else {
endBit = ( msg->readcount - 1 ) * 8 + msg->bit - GENTITYNUM_BITS;
}
Com_Printf( " (%i bits)\n", endBit - startBit );
}
}
/*
Ghoul2 Insert End
*/
/*
============================================================================
plyer_state_t communication
============================================================================
*/
// using the stringizing operator to save typing...
#define PSF(x) #x,(int)&((playerState_t*)0)->x
static const netField_t playerStateFields[] =
{
{ PSF(commandTime), 32 },
{ PSF(pm_type), 8 },
{ PSF(bobCycle), 8 },
{ PSF(pm_flags), 17 },
{ PSF(pm_time), -16 },
{ PSF(origin[0]), 0 },
{ PSF(origin[1]), 0 },
{ PSF(origin[2]), 0 },
{ PSF(velocity[0]), 0 },
{ PSF(velocity[1]), 0 },
{ PSF(velocity[2]), 0 },
{ PSF(weaponTime), -16 },
{ PSF(weaponChargeTime), 32 }, //? really need 32 bits??
{ PSF(gravity), 16 },
{ PSF(leanofs), -8 },
{ PSF(friction), 16 },
{ PSF(speed), 16 },
{ PSF(delta_angles[0]), 16 },
{ PSF(delta_angles[1]), 16 },
{ PSF(delta_angles[2]), 16 },
{ PSF(groundEntityNum), GENTITYNUM_BITS },
//{ PSF(animationTimer), 16 },
{ PSF(legsAnim), 16 },
{ PSF(torsoAnim), 16 },
{ PSF(movementDir), 4 },
{ PSF(eFlags), 32 },
{ PSF(eventSequence), 16 },
{ PSF(events[0]), 8 },
{ PSF(events[1]), 8 },
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{ PSF(eventParms[0]), -9 },
{ PSF(eventParms[1]), -9 },
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{ PSF(externalEvent), 8 },
{ PSF(externalEventParm), 8 },
{ PSF(clientNum), 32 },
{ PSF(weapon), 5 },
{ PSF(weaponstate), 4 },
{ PSF(batteryCharge), 16 },
{ PSF(viewangles[0]), 0 },
{ PSF(viewangles[1]), 0 },
{ PSF(viewangles[2]), 0 },
{ PSF(viewheight), -8 },
{ PSF(damageEvent), 8 },
{ PSF(damageYaw), 8 },
{ PSF(damagePitch), -8 },
{ PSF(damageCount), 8 },
{ PSF(saberColor), 8 },
{ PSF(saberActive), 8 },
{ PSF(saberLength), 32 },
{ PSF(saberLengthMax), 32 },
{ PSF(forcePowersActive), 32},
{ PSF(saberInFlight), 8 },
{ PSF(vehicleModel), 32 },
{ PSF(viewEntity), 32 },
Jedi Outcast Release v1.0
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{ PSF(serverViewOrg[0]), 0 },
{ PSF(serverViewOrg[1]), 0 },
{ PSF(serverViewOrg[2]), 0 },
Jedi Outcast v054
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};
/*
=============
MSG_WriteDeltaPlayerstate
=============
*/
void MSG_WriteDeltaPlayerstate( msg_t *msg, struct playerState_s *from, struct playerState_s *to ) {
int i;
playerState_t dummy;
int statsbits;
int persistantbits;
int ammobits;
int powerupbits;
int numFields;
int c;
const netField_t *field;
int *fromF, *toF;
if (!from) {
from = &dummy;
memset (&dummy, 0, sizeof(dummy));
}
c = msg->cursize;
numFields = sizeof( playerStateFields ) / sizeof( playerStateFields[0] );
for ( i = 0, field = playerStateFields ; i < numFields ; i++, field++ ) {
fromF = (int *)( (byte *)from + field->offset );
toF = (int *)( (byte *)to + field->offset );
if ( *fromF == *toF ) {
MSG_WriteBits( msg, 0, 1 ); // no change
continue;
}
MSG_WriteBits( msg, 1, 1 ); // changed
MSG_WriteField (msg, toF, field);
}
c = msg->cursize - c;
//
// send the arrays
//
statsbits = 0;
for (i=0 ; i<MAX_STATS ; i++) {
if (to->stats[i] != from->stats[i]) {
statsbits |= 1<<i;
}
}
if ( statsbits ) {
MSG_WriteBits( msg, 1, 1 ); // changed
MSG_WriteShort( msg, statsbits );
for (i=0 ; i<MAX_STATS ; i++)
if (statsbits & (1<<i) )
MSG_WriteSShort (msg, to->stats[i]);
} else {
MSG_WriteBits( msg, 0, 1 ); // no change
}
persistantbits = 0;
for (i=0 ; i<MAX_PERSISTANT ; i++) {
if (to->persistant[i] != from->persistant[i]) {
persistantbits |= 1<<i;
}
}
if ( persistantbits ) {
MSG_WriteBits( msg, 1, 1 ); // changed
MSG_WriteShort( msg, persistantbits );
for (i=0 ; i<MAX_PERSISTANT ; i++)
if (persistantbits & (1<<i) )
MSG_WriteSShort (msg, to->persistant[i]);
} else {
MSG_WriteBits( msg, 0, 1 ); // no change
}
ammobits = 0;
for (i=0 ; i<MAX_AMMO ; i++) {
if (to->ammo[i] != from->ammo[i]) {
ammobits |= 1<<i;
}
}
if ( ammobits ) {
MSG_WriteBits( msg, 1, 1 ); // changed
MSG_WriteShort( msg, ammobits );
for (i=0 ; i<MAX_AMMO ; i++)
if (ammobits & (1<<i) )
MSG_WriteSShort (msg, to->ammo[i]);
} else {
MSG_WriteBits( msg, 0, 1 ); // no change
}
powerupbits = 0;
for (i=0 ; i<MAX_POWERUPS ; i++) {
if (to->powerups[i] != from->powerups[i]) {
powerupbits |= 1<<i;
}
}
if ( powerupbits ) {
MSG_WriteBits( msg, 1, 1 ); // changed
MSG_WriteShort( msg, powerupbits );
for (i=0 ; i<MAX_POWERUPS ; i++)
if (powerupbits & (1<<i) )
MSG_WriteLong( msg, to->powerups[i] );
} else {
MSG_WriteBits( msg, 0, 1 ); // no change
}
statsbits = 0;
for (i=0 ; i<MAX_INVENTORY ; i++)
{
if (to->inventory[i] != from->inventory[i])
{
statsbits |= 1<<i;
}
}
if ( statsbits )
{
MSG_WriteBits( msg, 1, 1 ); // changed
MSG_WriteShort( msg, statsbits );
for (i=0 ; i<MAX_INVENTORY ; i++)
{
if (statsbits & (1<<i) )
{
MSG_WriteShort (msg, to->inventory[i]);
}
}
}
else
{
MSG_WriteBits( msg, 0, 1 ); // no change
}
}
/*
===================
MSG_ReadDeltaPlayerstate
===================
*/
void MSG_ReadDeltaPlayerstate (msg_t *msg, playerState_t *from, playerState_t *to ) {
int i;
int bits;
const netField_t *field;
int numFields;
int startBit, endBit;
int print;
int *fromF, *toF;
playerState_t dummy;
if ( !from ) {
from = &dummy;
memset( &dummy, 0, sizeof( dummy ) );
}
*to = *from;
if ( msg->bit == 0 ) {
startBit = msg->readcount * 8 - GENTITYNUM_BITS;
} else {
startBit = ( msg->readcount - 1 ) * 8 + msg->bit - GENTITYNUM_BITS;
}
// shownet 2/3 will interleave with other printed info, -2 will
// just print the delta records
if ( cl_shownet->integer >= 2 || cl_shownet->integer == -2 ) {
print = 1;
Com_Printf( "%3i: playerstate ", msg->readcount );
} else {
print = 0;
}
numFields = sizeof( playerStateFields ) / sizeof( playerStateFields[0] );
for ( i = 0, field = playerStateFields ; i < numFields ; i++, field++ ) {
fromF = (int *)( (byte *)from + field->offset );
toF = (int *)( (byte *)to + field->offset );
if ( ! MSG_ReadBits( msg, 1 ) ) {
// no change
*toF = *fromF;
} else {
MSG_ReadField( msg, toF, field, print);
}
}
// read the arrays
// parse stats
if ( MSG_ReadBits( msg, 1 ) ) {
LOG("PS_STATS");
bits = MSG_ReadShort (msg);
for (i=0 ; i<MAX_STATS ; i++) {
if (bits & (1<<i) ) {
to->stats[i] = MSG_ReadSShort(msg);
}
}
}
// parse persistant stats
if ( MSG_ReadBits( msg, 1 ) ) {
LOG("PS_PERSISTANT");
bits = MSG_ReadShort (msg);
for (i=0 ; i<MAX_PERSISTANT ; i++) {
if (bits & (1<<i) ) {
to->persistant[i] = MSG_ReadSShort(msg);
}
}
}
// parse ammo
if ( MSG_ReadBits( msg, 1 ) ) {
LOG("PS_AMMO");
bits = MSG_ReadShort (msg);
for (i=0 ; i<MAX_AMMO ; i++) {
if (bits & (1<<i) ) {
to->ammo[i] = MSG_ReadSShort(msg);
}
}
}
// parse powerups
if ( MSG_ReadBits( msg, 1 ) ) {
LOG("PS_POWERUPS");
bits = MSG_ReadShort (msg);
for (i=0 ; i<MAX_POWERUPS ; i++) {
if (bits & (1<<i) ) {
to->powerups[i] = MSG_ReadLong(msg);
}
}
}
// parse inventory
if ( MSG_ReadBits( msg, 1 ) ) {
LOG("PS_INVENTORY");
bits = MSG_ReadShort (msg);
for (i=0 ; i<MAX_INVENTORY ; i++) {
if (bits & (1<<i) ) {
to->inventory[i] = MSG_ReadShort(msg);
}
}
}
if ( print ) {
if ( msg->bit == 0 ) {
endBit = msg->readcount * 8 - GENTITYNUM_BITS;
} else {
endBit = ( msg->readcount - 1 ) * 8 + msg->bit - GENTITYNUM_BITS;
}
Com_Printf( " (%i bits)\n", endBit - startBit );
}
}
//===========================================================================
Reference in a new issue Copy permalink