/*
==============
CL_ParseScreenShake
Set screen shake
==============
*/
void CL_ParseScreenShake( sizebuf_t *msg )
{
clgame.shake.amplitude = (float)(word)BF_ReadShort( msg ) * (1.0f / (float)(1U << 12));
clgame.shake.duration = (float)(word)BF_ReadShort( msg ) * (1.0f / (float)(1U << 12));
clgame.shake.frequency = (float)(word)BF_ReadShort( msg ) * (1.0f / (float)(1U << 8));
clgame.shake.time = cl.time + max( clgame.shake.duration, 0.01f );
clgame.shake.next_shake = 0.0f; // apply immediately
}
/*
==============
CL_ParseStudioDecal
Studio Decal message. Used by engine in case
we need save\restore decals
==============
*/
void CL_ParseStudioDecal( sizebuf_t *msg )
{
modelstate_t state;
vec3_t start, pos;
int decalIndex, entityIndex;
int modelIndex = 0;
int flags;
pos[0] = BF_ReadCoord( msg );
pos[1] = BF_ReadCoord( msg );
pos[2] = BF_ReadCoord( msg );
start[0] = BF_ReadCoord( msg );
start[1] = BF_ReadCoord( msg );
start[2] = BF_ReadCoord( msg );
decalIndex = BF_ReadShort( msg );
entityIndex = BF_ReadShort( msg );
flags = BF_ReadByte( msg );
state.sequence = BF_ReadShort( msg );
state.frame = BF_ReadShort( msg );
state.blending[0] = BF_ReadByte( msg );
state.blending[1] = BF_ReadByte( msg );
state.controller[0] = BF_ReadByte( msg );
state.controller[1] = BF_ReadByte( msg );
state.controller[2] = BF_ReadByte( msg );
state.controller[3] = BF_ReadByte( msg );
if( cls.state == ca_connected )
{
// this message came on restore.
// read modelindex in case client models are not linked with entities
// because first client frame has not yet received
modelIndex = BF_ReadShort( msg );
}
if( clgame.drawFuncs.R_StudioDecalShoot )
{
int decalTexture = CL_DecalIndex( decalIndex );
cl_entity_t *ent = CL_GetEntityByIndex( entityIndex );
if( ent && !ent->model && modelIndex != 0 )
ent->model = Mod_Handle( modelIndex );
clgame.drawFuncs.R_StudioDecalShoot( decalTexture, ent, start, pos, flags, &state );
}
}
/*
==============
CL_ParseScreenFade
Set screen fade
==============
*/
void CL_ParseScreenFade( sizebuf_t *msg )
{
float duration, holdTime;
screenfade_t *sf = &clgame.fade;
duration = (float)(word)BF_ReadShort( msg ) * (1.0f / (float)(1U << 12));
holdTime = (float)(word)BF_ReadShort( msg ) * (1.0f / (float)(1U << 12));
sf->fadeFlags = BF_ReadShort( msg );
sf->fader = BF_ReadByte( msg );
sf->fadeg = BF_ReadByte( msg );
sf->fadeb = BF_ReadByte( msg );
sf->fadealpha = BF_ReadByte( msg );
sf->fadeSpeed = 0.0f;
sf->fadeEnd = duration;
sf->fadeReset = holdTime;
// calc fade speed
if( duration > 0 )
{
if( sf->fadeFlags & FFADE_OUT )
{
if( sf->fadeEnd )
{
sf->fadeSpeed = -(float)sf->fadealpha / sf->fadeEnd;
}
sf->fadeEnd += cl.time;
sf->fadeReset += sf->fadeEnd;
}
else
{
if( sf->fadeEnd )
{
sf->fadeSpeed = (float)sf->fadealpha / sf->fadeEnd;
}
sf->fadeReset += cl.time;
sf->fadeEnd += sf->fadeReset;
}
}
}
/*
==============
CL_ParseStudioDecal
Studio Decal message. Used by engine in case
we need save\restore decals
==============
*/
void CL_ParseStudioDecal( sizebuf_t *msg )
{
modelstate_t state;
vec3_t start, pos;
int decalIndex, entityIndex;
int modelIndex = 0;
int flags;
BF_ReadVec3Coord( msg, pos );
BF_ReadVec3Coord( msg, start );
decalIndex = BF_ReadWord( msg );
entityIndex = BF_ReadWord( msg );
flags = BF_ReadByte( msg );
state.sequence = BF_ReadShort( msg );
state.frame = BF_ReadShort( msg );
state.blending[0] = BF_ReadByte( msg );
state.blending[1] = BF_ReadByte( msg );
state.controller[0] = BF_ReadByte( msg );
state.controller[1] = BF_ReadByte( msg );
state.controller[2] = BF_ReadByte( msg );
state.controller[3] = BF_ReadByte( msg );
modelIndex = BF_ReadWord( msg );
state.body = BF_ReadByte( msg );
state.skin = BF_ReadByte( msg );
if( clgame.drawFuncs.R_StudioDecalShoot != NULL )
{
int decalTexture = CL_DecalIndex( decalIndex );
cl_entity_t *ent = CL_GetEntityByIndex( entityIndex );
if( ent && !ent->model && modelIndex != 0 )
ent->model = Mod_Handle( modelIndex );
clgame.drawFuncs.R_StudioDecalShoot( decalTexture, ent, start, pos, flags, &state );
}
}
/*
==================
CL_ParseStaticDecal
==================
*/
void CL_ParseStaticDecal( sizebuf_t *msg )
{
vec3_t origin;
int decalIndex, entityIndex, modelIndex;
int flags;
BF_ReadBitVec3Coord( msg, origin );
decalIndex = BF_ReadWord( msg );
entityIndex = BF_ReadShort( msg );
if( entityIndex > 0 )
modelIndex = BF_ReadWord( msg );
else modelIndex = 0;
flags = BF_ReadByte( msg );
CL_DecalShoot( CL_DecalIndex( decalIndex ), entityIndex, modelIndex, origin, flags );
}
/*
==================
CL_ParseStaticDecal
==================
*/
void CL_ParseStaticDecal( sizebuf_t *msg )
{
vec3_t origin;
int decalIndex, entityIndex, modelIndex;
cl_entity_t *ent = NULL;
float scale;
int flags;
BF_ReadVec3Coord( msg, origin );
decalIndex = BF_ReadWord( msg );
entityIndex = BF_ReadShort( msg );
if( entityIndex > 0 )
modelIndex = BF_ReadWord( msg );
else modelIndex = 0;
flags = BF_ReadByte( msg );
scale = (float)BF_ReadWord( msg ) / 4096.0f;
CL_FireCustomDecal( CL_DecalIndex( decalIndex ), entityIndex, modelIndex, origin, flags, scale );
}
/*
==================
CL_ParseStaticEntity
static client entity
==================
*/
void CL_ParseStaticEntity( sizebuf_t *msg )
{
entity_state_t state;
cl_entity_t *ent;
int i;
Q_memset( &state, 0, sizeof( state ));
state.modelindex = BF_ReadShort( msg );
state.sequence = BF_ReadByte( msg );
state.frame = BF_ReadByte( msg );
state.colormap = BF_ReadWord( msg );
state.skin = BF_ReadByte( msg );
for( i = 0; i < 3; i++ )
{
state.origin[i] = BF_ReadCoord( msg );
state.angles[i] = BF_ReadBitAngle( msg, 16 );
}
state.rendermode = BF_ReadByte( msg );
if( state.rendermode != kRenderNormal )
{
state.renderamt = BF_ReadByte( msg );
state.rendercolor.r = BF_ReadByte( msg );
state.rendercolor.g = BF_ReadByte( msg );
state.rendercolor.b = BF_ReadByte( msg );
state.renderfx = BF_ReadByte( msg );
}
i = clgame.numStatics;
if( i >= MAX_STATIC_ENTITIES )
{
MsgDev( D_ERROR, "CL_ParseStaticEntity: static entities limit exceeded!\n" );
return;
}
ent = &clgame.static_entities[i];
clgame.numStatics++;
ent->index = 0; // ???
ent->baseline = state;
ent->curstate = state;
ent->prevstate = state;
// statics may be respawned in game e.g. for demo recording
if( cls.state == ca_connected )
ent->trivial_accept = INVALID_HANDLE;
// setup the new static entity
CL_UpdateEntityFields( ent );
if( Mod_GetType( state.modelindex ) == mod_studio )
{
CL_UpdateStudioVars( ent, &state, true );
// animate studio model
ent->curstate.animtime = cl.time;
ent->curstate.framerate = 1.0f;
ent->latched.prevframe = 0.0f;
}
R_AddEfrags( ent ); // add link
}
/*
=====================
CL_ParseServerMessage
=====================
*/
void CL_ParseServerMessage( sizebuf_t *msg )
{
char *s;
int i, j, cmd;
int param1, param2;
int bufStart;
cls_message_debug.parsing = true; // begin parsing
starting_count = BF_GetNumBytesRead( msg ); // updates each frame
// parse the message
while( 1 )
{
if( BF_CheckOverflow( msg ))
{
Host_Error( "CL_ParseServerMessage: overflow!\n" );
return;
}
// mark start position
bufStart = BF_GetNumBytesRead( msg );
// end of message
if( BF_GetNumBitsLeft( msg ) < 8 )
break;
cmd = BF_ReadByte( msg );
// record command for debugging spew on parse problem
CL_Parse_RecordCommand( cmd, bufStart );
// other commands
switch( cmd )
{
case svc_bad:
Host_Error( "svc_bad\n" );
break;
case svc_nop:
// this does nothing
break;
case svc_disconnect:
MsgDev( D_INFO, "Disconnected from server\n" );
CL_Drop ();
Host_AbortCurrentFrame ();
break;
case svc_changing:
if( BF_ReadOneBit( msg ))
{
cls.changelevel = true;
S_StopAllSounds();
if( cls.demoplayback )
{
SCR_BeginLoadingPlaque( cl.background );
cls.changedemo = true;
}
}
else MsgDev( D_INFO, "Server disconnected, reconnecting\n" );
CL_ClearState ();
CL_InitEdicts (); // re-arrange edicts
if( cls.demoplayback )
{
cl.background = (cls.demonum != -1) ? true : false;
cls.state = ca_connected;
}
else cls.state = ca_connecting;
cls.connect_time = MAX_HEARTBEAT; // CL_CheckForResend() will fire immediately
break;
case svc_setview:
cl.refdef.viewentity = BF_ReadWord( msg );
break;
case svc_sound:
CL_ParseSoundPacket( msg, false );
break;
case svc_time:
// shuffle timestamps
cl.mtime[1] = cl.mtime[0];
cl.mtime[0] = BF_ReadFloat( msg );
break;
case svc_print:
i = BF_ReadByte( msg );
MsgDev( D_INFO, "^6%s", BF_ReadString( msg ));
if( i == PRINT_CHAT ) S_StartLocalSound( "common/menu2.wav", VOL_NORM, false );
break;
case svc_stufftext:
CL_ParseStuffText( msg );
break;
case svc_lightstyle:
CL_ParseLightStyle( msg );
break;
case svc_setangle:
CL_ParseSetAngle( msg );
break;
case svc_serverdata:
Cbuf_Execute(); // make sure any stuffed commands are done
CL_ParseServerData( msg );
break;
case svc_addangle:
CL_ParseAddAngle( msg );
break;
case svc_clientdata:
CL_ParseClientData( msg );
break;
case svc_packetentities:
CL_ParsePacketEntities( msg, false );
break;
case svc_deltapacketentities:
CL_ParsePacketEntities( msg, true );
break;
case svc_updatepings:
CL_UpdateUserPings( msg );
break;
case svc_usermessage:
CL_RegisterUserMessage( msg );
break;
case svc_particle:
CL_ParseParticles( msg );
break;
case svc_restoresound:
CL_ParseRestoreSoundPacket( msg );
break;
case svc_spawnstatic:
CL_ParseStaticEntity( msg );
break;
case svc_ambientsound:
CL_ParseSoundPacket( msg, true );
break;
case svc_crosshairangle:
CL_ParseCrosshairAngle( msg );
break;
case svc_spawnbaseline:
CL_ParseBaseline( msg );
break;
case svc_temp_entity:
CL_ParseTempEntity( msg );
break;
case svc_setpause:
cl.refdef.paused = ( BF_ReadOneBit( msg ) != 0 );
break;
case svc_deltamovevars:
CL_ParseMovevars( msg );
break;
case svc_customization:
CL_ParseCustomization( msg );
break;
case svc_centerprint:
CL_CenterPrint( BF_ReadString( msg ), 0.25f );
break;
case svc_event:
CL_ParseEvent( msg );
break;
case svc_event_reliable:
CL_ParseReliableEvent( msg );
break;
case svc_updateuserinfo:
CL_UpdateUserinfo( msg );
break;
case svc_intermission:
cl.refdef.intermission = true;
break;
case svc_modelindex:
CL_PrecacheModel( msg );
break;
case svc_soundindex:
CL_PrecacheSound( msg );
break;
case svc_soundfade:
CL_ParseSoundFade( msg );
break;
case svc_cdtrack:
param1 = BF_ReadByte( msg );
param1 = bound( 1, param1, MAX_CDTRACKS ); // tracknum
param2 = BF_ReadByte( msg );
param2 = bound( 1, param2, MAX_CDTRACKS ); // loopnum
S_StartBackgroundTrack( clgame.cdtracks[param1-1], clgame.cdtracks[param2-1], 0 );
break;
case svc_serverinfo:
CL_ServerInfo( msg );
break;
case svc_eventindex:
CL_PrecacheEvent( msg );
break;
case svc_deltatable:
Delta_ParseTableField( msg );
break;
case svc_weaponanim:
param1 = BF_ReadByte( msg ); // iAnim
param2 = BF_ReadByte( msg ); // body
CL_WeaponAnim( param1, param2 );
break;
case svc_bspdecal:
CL_ParseStaticDecal( msg );
break;
case svc_roomtype:
param1 = BF_ReadShort( msg );
Cvar_SetFloat( "room_type", param1 );
break;
case svc_chokecount:
i = BF_ReadByte( msg );
j = cls.netchan.incoming_acknowledged - 1;
for( ; i > 0 && j > cls.netchan.outgoing_sequence - CL_UPDATE_BACKUP; j-- )
{
if( cl.frames[j & CL_UPDATE_MASK].receivedtime != -3.0 )
{
cl.frames[j & CL_UPDATE_MASK].receivedtime = -2.0;
i--;
}
}
break;
case svc_resourcelist:
CL_ParseResourceList( msg );
break;
case svc_director:
CL_ParseDirector( msg );
break;
case svc_studiodecal:
CL_ParseStudioDecal( msg );
break;
case svc_querycvarvalue:
CL_ParseCvarValue( msg );
break;
case svc_querycvarvalue2:
CL_ParseCvarValue2( msg );
break;
default:
CL_ParseUserMessage( msg, cmd );
break;
}
}
cls_message_debug.parsing = false; // done
// we don't know if it is ok to save a demo message until
// after we have parsed the frame
if( !cls.demoplayback )
{
if( cls.demorecording && !cls.demowaiting )
{
CL_WriteDemoMessage( false, starting_count, msg );
}
else if( cls.state != ca_active )
{
CL_WriteDemoMessage( true, starting_count, msg );
}
}
}
/*
=================
CL_ConnectionlessPacket
Responses to broadcasts, etc
=================
*/
void CL_ConnectionlessPacket( netadr_t from, sizebuf_t *msg )
{
char *args;
char *c, buf[MAX_SYSPATH];
int len = sizeof( buf ), i = 0;
netadr_t servadr;
BF_Clear( msg );
BF_ReadLong( msg ); // skip the -1
args = BF_ReadStringLine( msg );
Cmd_TokenizeString( args );
c = Cmd_Argv( 0 );
MsgDev( D_NOTE, "CL_ConnectionlessPacket: %s : %s\n", NET_AdrToString( from ), c );
// server connection
if( !Q_strcmp( c, "client_connect" ))
{
if( cls.state == ca_connected )
{
MsgDev( D_INFO, "Dup connect received. Ignored.\n");
return;
}
Netchan_Setup( NS_CLIENT, &cls.netchan, from, net_qport->integer);
BF_WriteByte( &cls.netchan.message, clc_stringcmd );
BF_WriteString( &cls.netchan.message, "new" );
cls.state = ca_connected;
cl.validsequence = 0; // haven't gotten a valid frame update yet
cl.delta_sequence = -1; // we'll request a full delta from the baseline
cls.lastoutgoingcommand = -1; // we don't have a backed up cmd history yet
cls.nextcmdtime = host.realtime; // we can send a cmd right away
CL_StartupDemoHeader ();
}
else if( !Q_strcmp( c, "info" ))
{
// server responding to a status broadcast
CL_ParseStatusMessage( from, msg );
}
else if( !Q_strcmp( c, "netinfo" ))
{
// server responding to a status broadcast
CL_ParseNETInfoMessage( from, msg );
}
else if( !Q_strcmp( c, "cmd" ))
{
// remote command from gui front end
if( !NET_IsLocalAddress( from ))
{
Msg( "Command packet from remote host. Ignored.\n" );
return;
}
#ifdef XASH_SDL
SDL_RestoreWindow( host.hWnd );
#endif
args = BF_ReadString( msg );
Cbuf_AddText( args );
Cbuf_AddText( "\n" );
}
else if( !Q_strcmp( c, "print" ))
{
// print command from somewhere
Msg("remote: %s\n", BF_ReadString( msg ) );
}
else if( !Q_strcmp( c, "ping" ))
{
// ping from somewhere
Netchan_OutOfBandPrint( NS_CLIENT, from, "ack" );
}
else if( !Q_strcmp( c, "challenge" ))
{
// challenge from the server we are connecting to
cls.challenge = Q_atoi( Cmd_Argv( 1 ));
CL_SendConnectPacket();
return;
}
else if( !Q_strcmp( c, "echo" ))
{
// echo request from server
Netchan_OutOfBandPrint( NS_CLIENT, from, "%s", Cmd_Argv( 1 ));
}
else if( !Q_strcmp( c, "disconnect" ))
{
// a disconnect message from the server, which will happen if the server
// dropped the connection but it is still getting packets from us
CL_Disconnect();
CL_ClearEdicts();
}
else if( !Q_strcmp( c, "f") )
{
// serverlist got from masterserver
while( !msg->bOverflow )
{
servadr.type = NA_IP;
// 4 bytes for IP
BF_ReadBytes( msg, servadr.ip, sizeof( servadr.ip ));
// 2 bytes for Port
servadr.port = BF_ReadShort( msg );
if( !servadr.port )
break;
MsgDev( D_INFO, "Found server: %s\n", NET_AdrToString( servadr ));
NET_Config( true ); // allow remote
Netchan_OutOfBandPrint( NS_CLIENT, servadr, "info %i", PROTOCOL_VERSION );
}
// execute at next frame preventing relation on fps
Cbuf_AddText("menu_resetping\n");
}
else if( clgame.dllFuncs.pfnConnectionlessPacket( &from, args, buf, &len ))
{
// user out of band message (must be handled in CL_ConnectionlessPacket)
if( len > 0 ) Netchan_OutOfBand( NS_SERVER, from, len, (byte *)buf );
}
else MsgDev( D_ERROR, "Bad connectionless packet from %s:\n%s\n", NET_AdrToString( from ), args );
}
/*
=================
SV_ReadPackets
=================
*/
void SV_ReadPackets( void )
{
sv_client_t *cl;
int i, qport, curSize;
while( NET_GetPacket( NS_SERVER, &net_from, net_message_buffer, &curSize ))
{
BF_Init( &net_message, "ClientPacket", net_message_buffer, curSize );
// check for connectionless packet (0xffffffff) first
if( BF_GetMaxBytes( &net_message ) >= 4 && *(int *)net_message.pData == -1 )
{
SV_ConnectionlessPacket( net_from, &net_message );
continue;
}
// read the qport out of the message so we can fix up
// stupid address translating routers
BF_Clear( &net_message );
BF_ReadLong( &net_message ); // sequence number
BF_ReadLong( &net_message ); // sequence number
qport = (int)BF_ReadShort( &net_message ) & 0xffff;
// check for packets from connected clients
for( i = 0, cl = svs.clients; i < sv_maxclients->integer; i++, cl++ )
{
if( cl->state == cs_free || cl->fakeclient )
continue;
if( !NET_CompareBaseAdr( net_from, cl->netchan.remote_address ))
continue;
if( cl->netchan.qport != qport )
continue;
if( cl->netchan.remote_address.port != net_from.port )
{
MsgDev( D_INFO, "SV_ReadPackets: fixing up a translated port\n");
cl->netchan.remote_address.port = net_from.port;
}
if( Netchan_Process( &cl->netchan, &net_message ))
{
cl->send_message = true; // reply at end of frame
// this is a valid, sequenced packet, so process it
if( cl->state != cs_zombie )
{
cl->lastmessage = host.realtime; // don't timeout
SV_ExecuteClientMessage( cl, &net_message );
svgame.globals->frametime = host.frametime;
svgame.globals->time = sv.time;
}
}
// fragmentation/reassembly sending takes priority over all game messages, want this in the future?
if( Netchan_IncomingReady( &cl->netchan ))
{
if( Netchan_CopyNormalFragments( &cl->netchan, &net_message ))
{
BF_Clear( &net_message );
SV_ExecuteClientMessage( cl, &net_message );
}
if( Netchan_CopyFileFragments( &cl->netchan, &net_message ))
{
SV_ProcessFile( cl, cl->netchan.incomingfilename );
}
}
break;
}
if( i != sv_maxclients->integer )
continue;
}
}
