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gc_service.cpp
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/*
* 3dyne Legacy Engine GPL Source Code
*
* Copyright (C) 1996-2012 Matthias C. Berger & Simon Berger.
*
* This file is part of the 3dyne Legacy Engine GPL Source Code ("3dyne Legacy
* Engine Source Code").
*
* 3dyne Legacy Engine Source Code 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.
*
* 3dyne Legacy Engine Source Code 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.
*
* You should have received a copy of the GNU General Public License along with
* 3dyne Legacy Engine Source Code. If not, see
* <http://www.gnu.org/licenses/>.
*
* In addition, the 3dyne Legacy Engine Source Code is also subject to certain
* additional terms. You should have received a copy of these additional terms
* immediately following the terms and conditions of the GNU General Public
* License which accompanied the 3dyne Legacy Engine Source Code.
*
* Contributors:
* Matthias C. Berger ([email protected]) - initial API and implementation
* Simon Berger ([email protected]) - initial API and implementation
*/
// gc_service.c
#include "compiler_config.h"
#if D3DYNE_OS_WIN
typedef int socklen_t;
#include <winsock2.h>
#endif
#include "interfaces.h"
#include "./r_fake/r_interface.h"
#include "r_private.h"
#include "lib_tag.h"
#include "lib_queue.h"
#include "lib_parse.h"
#include "lib_digest.h"
#include "g_psys.h"
#include "r_count.h"
#include "g_server.h"
#include "g_client.h"
#include "g_library.h"
#include "snd_deamon.h"
#if D3DYNE_OS_UNIXLIKE
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <time.h>
#else
#endif
//#include <sys/time.h>
#include <errno.h>
//#include "shape_defs.h"
//#include "shape_instance.h"
//#include "tess_simple_face.h"
#define MSEC_WF ( 100 ) // msecs of worldframe
#define GC_ISWORLDFRAME ( 1 )
#define GC_ISRENDERFRAME ( 2 )
static char graphcursor[4][256];
static sh_var_t *rendershot;
int gc_fps = 0;
fp_t gc_fpfps;
int gc_tps = 0; // tris/sec
int gc_tpf = 0; // tris/frame
static int gc_inmainloop = 0;
static fp_t gc_ftimes[8];
unsigned int ms_win;
unsigned int ms_rfbegin = 0;
unsigned int ms_wfbegin = 0;
int ms_rfdelta = 0; // time passed since last render frame
int gc_ismenu = 0;
int gc_isshell = 0;
//int gc_ismap = 0;
//int gc_islife = 0;
//int gc_isloading = 0;
int gc_renderframe = 0;
int gc_localworldframe = 0;
int gc_textcursor;
char *gc_graphcursor;
int gc_wftimebase;
//int gci_exit; // exit if set
int gci_domuch;
//int gci_spawnmap;
//int gci_dropmap;
//int gci_restartgl;
//int gci_startlocalgame;
//int gci_startremotegame;
int gc_lastbusy;
playermod_t pmod; // test only!
int mx = 0, my = 0;
static int wf_mdx, wf_mdy;
int gc_localseconds;
sh_var_t *gc_mousescale;
sh_var_t *gc_invmouse;
static sh_var_t *gc_showfps;
gc_state_t *gc_state;
// fixme: sysdep stuff!
#if D3DYNE_OS_WIN
static int gc_wsisup = 0;
static WSADATA winsockdata;
#endif
FILE *h_sendudp = NULL;
FILE *h_recvudp = NULL;
void GC_StartRemoteGame( void );
void GC_DropRemoteGame( void );
void GC_TryClientToServerConnect( void );
void GC_TryClientToServerJoin( void );
void GC_ClientInputUpdate();
void GC_RunClientFrame();
void GC_LoadGraphCursor()
{
TFUNC_ENTER;
strcpy( graphcursor[0], "menu.tex.bigcurs00" );
strcpy( graphcursor[1], "menu.tex.bigcurs01" );
strcpy( graphcursor[2], "menu.tex.bigcurs02" );
strcpy( graphcursor[3], "menu.tex.bigcurs03" );
TFUNC_LEAVE;
}
void GC_ClearInitFlags()
{
TFUNC_ENTER;
// gci_exit = 0;
gci_domuch = 0;
TFUNC_LEAVE;
}
int GC_CheckWFTimebase()
{
unsigned int now;
now = SYS_GetMsec();
// cprintf( "ms_frdelta: %d\n", ms_rfdelta );
if( now - ms_wfbegin > MSEC_WF )
{
// cprintf( "left time: %d", 100 - ( now - ms_wfbegin ) );
// __named_message( "its time\n" );
ms_wfbegin = SYS_GetMsec();
gc_wftimebase = 1;
// printf( "wf: %u\n", now );
return 1;
}
return 0;
}
void GC_DoMuch()
{
// test givebacktime
__error( "total crap function called\n" ); // this won't do much on most current compilers...
#if 0
int i, i2;
TFUNC_ENTER;
// GC_SpawnLife();
for( i = 0; i < 20; i++ )
{
cprintf( "working hard\n" );
for( i2 = 0; i2 < 10000000; i2++ )
{
a = i * i2;
}
GC_GiveBackTime();
}
TFUNC_LEAVE;
#endif
}
// =============================================================================
/*
==============================
GC_AddPlayer
==============================
*/
void GC_AddPlayer( unique_t id )
{
char tt[256];
cprintf( "add player to game\n" );
if ( gc_state->sv.mode == gServerMode_local )
{
sprintf( tt, "SV_AddPlayer #%u", id );
gc_state->sv.lib.api.Com( tt );
// sprintf( tt, "%u", id );
// SHP_SetVar( "gc_id_bind_view", tt, 0 );
// SHP_SetVar( "gc_id_bind_input", tt, 0 );
}
else
{
__error( "no local server, can't add player\n" );
}
}
void GC_RemovePlayer( unique_t id )
{
char str[256];
cprintf( "remove player from game\n" );
if ( gc_state->sv.mode == gServerMode_local )
{
sprintf( str, "SV_RemovePlayer #%u", id );
gc_state->sv.lib.api.Com( str );
}
else
{
__error( "no local server, can't remove player\n" );
}
}
void GC_BindControl( unique_t id )
{
char tt[256];
sprintf( tt, "%u", id );
SHP_SetVar( "gc_id_bind_view", tt, 0 );
SHP_SetVar( "gc_id_bind_input", tt, 0 );
}
/*
==============================
GC_InitDemo
==============================
*/
void GC_InitDemo( gc_state_t *state )
{
if ( state->gc_is_demo )
{
cprintf( "already in a demo\n" );
return;
}
SHP_SetVar( "gc_servermode", "local", 0 );
SHP_SetVar( "gc_map", "title1", 0 );
state->gc_is_demo = true;
// GC_InitGame( state );
}
/*
==============================
GC_CleanUpDemo
==============================
*/
void GC_CleanUpDemo( gc_state_t *state )
{
if ( !state->gc_is_demo )
{
cprintf( "not in a demo\n" );
return;
}
state->gc_is_demo = false;
// GC_CleanUpGame( state );
}
/*
==============================
GC_InitSingle
==============================
*/
void GC_InitSingle( gc_state_t *state )
{
if ( state->gc_is_single )
{
cprintf( "already in a single player game\n" );
return;
}
SHP_SetVar( "gc_servermode", "local", 0 );
// SHP_SetVar( "gc_map", "test8", 0 );
state->gc_is_single = true;
}
/*
==============================
GC_CleanUpSingle
==============================
*/
void GC_CleanUpSingle( gc_state_t *state )
{
if ( !state->gc_is_single )
{
cprintf( "not in single player game\n" );
return;
}
state->gc_is_single = false;
}
/*
==============================
GC_InitConnectPublicServer
==============================
*/
void GC_TryClientToServerConnect( void )
{
gc_host_addr_t assumed_server;
cprintf( "try to connect ...\n" );
if ( gc_state->connected_sv.state != connectedServerState_none )
__error( "expected connectedServerState_none\n" );
//
// set server address from local settings
//
{
struct sockaddr_in addr;
sh_var_t *tmp;
tmp = SHP_GetVar( "gc_remoteaddr" );
__named_message( "gc_remoteaddr is '%s'\n", tmp->string );
addr.sin_addr.s_addr = inet_addr( tmp->string );
tmp = SHP_GetVar( "gc_remoteport" );
__named_message( "gc_remoteport is '%s'\n", tmp->string );
addr.sin_port = htons( atoi( tmp->string ) );
addr.sin_family = AF_INET;
GC_InitHostAddrFromInetAddr( &assumed_server, &addr );
}
GC_ConnectedServerInit( gc_state, &gc_state->connected_sv, &assumed_server );
}
void GC_InitConnectPublicServer( gc_state_t *state )
{
if ( state->gc_has_server_connection )
{
cprintf( "already connected\n" );
return;
}
if ( GC_NetOpenLocalPort( state, true ) != true )
{
__error( "can't open local port\n" );
}
GC_TryClientToServerConnect();
state->gc_has_server_connection = true;
}
/*
==============================
GC_CleanUpConnectPublicServer
==============================
*/
void GC_CleanUpConnectPublicServer( gc_state_t *state )
{
if ( !state->gc_has_server_connection )
{
cprintf( "not connected\n" );
return;
}
GC_ConnectedServerCleanUp( state, &state->connected_sv );
GC_NetCloseLocalPort( state );
state->gc_has_server_connection = false;
}
/*
==============================
GC_InitPublicServer
==============================
*/
void GC_InitPublicServer( gc_state_t *state )
{
if ( state->gc_is_public_server )
{
cprintf( "already a public server\n" );
return;
}
SHP_SetVar( "gc_servermode", "local", 0 );
if ( GC_NetOpenLocalPort( state, true ) != true )
{
__error( "can't open local port\n" );
}
state->u_start_game = true;
state->gc_is_public_server = true;
}
/*
==============================
GC_CleanUpPublicServer
==============================
*/
void GC_CleanUpPublicServer( gc_state_t *state )
{
int i;
gc_connected_client_t *cc;
if ( !state->gc_is_public_server )
{
cprintf( "not a public server\n" );
return;
}
for ( i = 0; i < GC_STATE_MAX_CONNECTED_CLIENTS; i++ )
{
cc = &state->connected_cl_tbl[i];
if ( cc->state == connectedClientState_none )
{
continue;
}
GC_ConnectedClientCleanUp( state, cc );
}
GC_NetCloseLocalPort( state );
state->gc_is_public_server = false;
}
/*
==============================
GC_InitGame
==============================
*/
void GC_InitGame( gc_state_t *state )
{
if ( state->gc_in_game )
{
cprintf( "already in a game\n" );
return;
}
sc_readbytes = 0;
g_st = G_NewState();
G_StateInit( g_st );
state->gc_is_loading = true;
G_InitMap( &gc_state->map );
G_InitServer( &gc_state->sv );
G_InitClient( &gc_state->cl );
state->gc_is_loading = false;
state->gc_in_game = true;
if ( state->gc_is_single || state->gc_is_public_server )
{
unique_t id;
id = GC_GetUniqueID( state );
GC_AddPlayer( id );
GC_BindControl( id );
}
//
// tell server that client is ready to handle events
//
if ( state->gc_has_server_connection )
{
if ( state->connected_sv.state == connectedServerState_is_starting )
{
state->connected_sv.state = connectedServerState_is_started;
}
}
gc_localworldframe = 0;
// gc_islife = 1;
// gc_ismap = 1;
// gc_isloading = 0;
//
gc_state->state = gcState_game_ready;
}
/*
==============================
GC_CleanUpGame
==============================
*/
void GC_CleanUpGame( gc_state_t *state )
{
if ( !state->gc_in_game )
{
cprintf( "not in a game\n" );
return;
}
G_CleanUpClient( &gc_state->cl );
G_CleanUpServer( &gc_state->sv );
G_CleanUpMap( &gc_state->map );
FREE( g_st );
state->gc_in_game = false;
}
/*
==============================
GC_CleanUp
==============================
*/
void GC_CleanUp( gc_state_t *state )
{
if ( state->gc_has_server_connection )
{
GC_CleanUpConnectPublicServer( state );
}
if ( state->gc_is_public_server )
{
GC_CleanUpPublicServer( state );
}
if ( state->gc_is_demo )
{
GC_CleanUpDemo( state );
}
if ( state->gc_is_single )
{
GC_CleanUpSingle( state );
}
if ( state->gc_is_loading )
{
__error( "while loading ...\n" );
}
if ( state->gc_in_game )
{
GC_CleanUpGame( state );
}
// state->u_start_demo = true;
}
/*
==================================================
net_events handled by game_control
==================================================
*/
void GC_NetEventHandle_host2host_connect_as_client( gc_state_t *state )
{
int entry;
gc_connected_client_t *cc;
cprintf( "recv host==>host: connect_as_client\n" );
entry = GC_ConnectedClientTableGetEntryByHostAddr( state, &state->host_last_recv );
cprintf( "remote host is: %s\n", state->host_last_recv.addr_str );
if ( entry != -1 )
{
//
// the client is already connected
//
cprintf( "ignore, host is already a client\n" );
// GC_NetEventReply_sv2cl_refuse( state, &state->host_last_recv );
return;
}
entry = GC_ConnectedClientTableGetFreeEntry( state );
if ( entry == -1 )
{
//
// the server can't handle more clients
//
cprintf( "ignore, don't accpet more clients\n" );
// GC_NetEventReply_sv2cl_refuse( state, &state->host_last_recv );
return;
}
cc = &state->connected_cl_tbl[entry];
GC_ConnectedClientInit( state, cc, &state->host_last_recv );
cprintf( "server: accept host as client\n" );
}
// =============================================================================
void GC_SendServerOutputToLocalClient( gc_state_t *state )
{
char *sv_out_buf;
int sv_out_size;
sv_out_buf = G_ServerGetOutputBase( &gc_state->sv );
sv_out_size = G_ServerGetOutputSize( &gc_state->sv );
//
// copy server output to local client input
//
G_ClientFillInput( &state->cl, sv_out_buf, sv_out_size );
}
void GC_SendServerOutputToAllConnectedClients( gc_state_t *state )
{
int i, j;
char *sv_out_buf;
int sv_out_size;
static int send_id = 1;
buffer_send_t send;
int num_frag;
sv_out_buf = G_ServerGetOutputBase( &gc_state->sv );
sv_out_size = G_ServerGetOutputSize( &gc_state->sv );
BufferSend_Init( &send, sv_out_buf, sv_out_size, send_id++ );
for ( num_frag = 0; ; num_frag++ )
{
byte_iter_t *bi;
int frag_num_byte;
char frag_buf[128];
if ( BufferSend_IsComplete( &send ) )
break;
bi = GC_NetSendInit( gc_state );
ByteIter_Packi( bi, netEv_sv2cl_buf_frag );
frag_num_byte = 72;
BufferSend_GetFrag( &send, frag_buf, &frag_num_byte );
for ( i = 0; i < frag_num_byte; i++ )
{
ByteIter_Packb( bi, frag_buf[i] );
}
for ( j = 0; j < GC_STATE_MAX_CONNECTED_CLIENTS; j++ )
{
gc_connected_client_t *cc;
cc = &state->connected_cl_tbl[j];
if ( cc->state == connectedClientState_is_joined )
{
GC_NetSendFromLocalPort( gc_state, &cc->host );
}
}
}
}
void GC_InputToBuffer( gc_state_t *state, byte_iter_t *bi )
{
sh_var_t *tmp;
unique_t id;
byte_iter_t frm;
tmp = SHP_GetVar( "gc_id_bind_input" );
id = tmp->ivalue;
if ( id == UNIQUE_INVALIDE )
{
return;
}
// cprintf( "lon: %.2f, lat: %.2f, speed: %.2f\n", gc_state->i_lon, gc_state->i_lat, gc_state->i_speed );
PackFrame_Begin( bi, &frm );
ByteIter_Packi( &frm, id );
ByteIter_Packi( &frm, eventType_server_update_player );
ByteIter_Packf( &frm, gc_state->i_speed );
ByteIter_Packf( &frm, gc_state->i_strafespeed );
ByteIter_Packf( &frm, gc_state->i_lon );
ByteIter_Packf( &frm, gc_state->i_lat );
ByteIter_Packi( &frm, gc_state->i_shoot );
ByteIter_Packi( &frm, gc_state->i_use );
ByteIter_Packi( &frm, gc_state->i_jump );
PackFrame_End( bi, &frm );
}
void GC_SendLocalInputToServer( void )
{
char sv_in_buf[1024];
int sv_in_size;
byte_iter_t bi_in;
if ( gc_state->sv.state != gServerState_is_init )
{
return;
}
if ( gc_state->gc_is_demo )
{
return;
}
if ( gc_state->gc_has_server_connection && gc_state->connected_sv.state != connectedServerState_is_joined )
{
return;
}
ByteIter_Init( &bi_in, sv_in_buf, 1024 );
GC_InputToBuffer( gc_state, &bi_in );
sv_in_size = ByteIter_GetOfs( &bi_in );
G_ServerFillInput( &gc_state->sv, sv_in_buf, sv_in_size );
}
void GC_RunServerFrame()
{
TFUNC_ENTER;
// __named_message( "\n" );
if ( gc_state->sv.state == gServerState_is_init )
{
// char *sv_out_buf;
// int sv_out_size;
//
// remote hosts put their pmod during GC_ConnectedClientRun
// into server input buffer
//
//
// put local pmod into server input buffer
//
#if 0
if ( !gc_state->gc_is_demo )
{
ByteIter_Init( &bi_in, sv_in_buf, 1024 );
GC_InputToBuffer( gc_state, &bi_in );
sv_in_size = ByteIter_GetOfs( &bi_in );
G_ServerFillInput( &gc_state->sv, sv_in_buf, sv_in_size );
}
#endif
GC_SendLocalInputToServer();
G_ServerRunFrame( &gc_state->sv );
/*sv_out_buf = */G_ServerGetOutputBase( &gc_state->sv );
/*sv_out_size = */G_ServerGetOutputSize( &gc_state->sv );
//
// copy server output to local client input
//
GC_SendServerOutputToLocalClient( gc_state );
//
// send server output via connected_cl_tbl[] to all remote hosts
//
// fixme: is this the right place for that
GC_SendServerOutputToAllConnectedClients( gc_state );
// handle server output only once
G_ServerResetOutput( &gc_state->sv );
if ( gc_state->sv.mode == gServerMode_local )
{
}
}
TFUNC_LEAVE;
}
// ====================
// GC_MainLoop
// this one should loop
// forever
// does one loop per
// worldframe
// ====================
// fake!
// ====
void GC_SecondFrame()
{
gc_localseconds++;
SHV_ScrollSOut();
}
int GC_ClassifyFrame()
{
if( GC_CheckWFTimebase()) // time for worldframe
{
ms_wfbegin = SYS_GetMsec();
return GC_ISWORLDFRAME;
} else
return GC_ISRENDERFRAME;
return 0;
}
//
// network
//
/*
==============================
GC_NetSendFromLocalPort
==============================
*/
byte_iter_t * GC_NetSendInit( gc_state_t *state )
{
ByteIter_Init( &state->udp_send_bi, state->udp_send_buf, GC_MAX_NET_UDP_SIZE );
return &state->udp_send_bi;
}
void GC_NetSendFromLocalPort( gc_state_t *state, gc_host_addr_t *host )
{
pos4_t ofs;
// SIM: fixme: most of the called functions work with char * but there are some arithmetics in this functions that might rely on unsigned
unsigned char *buf;
unsigned short chksum;
if ( state->udp_state != gcUdpState_is_init )
__error( "expected gcUdpState_is_init\n" );
ofs = ByteIter_GetOfs( &gc_state->udp_send_bi );
buf = (unsigned char *)ByteIter_GetBase( &gc_state->udp_send_bi );
if ( ofs == 0 )
{
return;
}
//
// calc 16 bit chksum for buffer and append it
//
chksum = BufferChecksum16( ofs, (char *)buf );
// printf( "send chksum: %u\n", chksum );
buf[ofs++] = (chksum&255); // low
buf[ofs++] = (chksum>>8)&255; // high
sendto( state->local_sock, (char *)buf, ofs, 0, (struct sockaddr *)&host->addr, sizeof(struct sockaddr) );
if ( h_sendudp )
{
pos4_t i;
int frag_id, frag_ofs, frag_sum;
// assume buffer fragment
BufferFrag_GetInfo( (char*)&buf[4], &frag_id, &frag_ofs, &frag_sum );
fprintf( h_sendudp, "time: %d, size: %d, buf_id %d, frag_ofs %d, frag_sum %d ", ms_rfbegin, ofs, frag_id, frag_ofs, frag_sum );
for ( i = 0; i < ofs; i++ )
{
if ( (i&15) == 0 )
fprintf( h_sendudp, "\n %.4x: ", i );
fprintf( h_sendudp, "%.2x ", (unsigned char) buf[i] );
}
fprintf( h_sendudp, "\n\n" );
}
}
/*
==============================
GC_NetRecvFromLocalPort
==============================
*/
byte_iter_t * GC_NetRecvFromLocalPort( gc_state_t *state )
{
int size;
socklen_t addr_len;
int ret;
struct timeval tv;
fd_set readfs;
if ( state->udp_state != gcUdpState_is_init )
__error( "expected gcUdpState_is_init\n" );
tv.tv_sec = 0;
tv.tv_usec = 0;
FD_ZERO( &readfs );
FD_SET( gc_state->local_sock, &readfs );
ret = select( FD_SETSIZE, &readfs, NULL, NULL, &tv );
/*
if( ret < 0 )
cprintf( "select: %s\n", strerror( errno ));
*/
// cprintf( "select: %d %d\n", ret, errno );
if( ret <= 0 )
{
ByteIter_Init( &state->udp_recv_bi, state->udp_recv_buf, 0 );
return NULL;
}
addr_len = sizeof( struct sockaddr );
size = recvfrom( state->local_sock, state->udp_recv_buf, GC_MAX_NET_UDP_SIZE, 0, (struct sockaddr *) &state->addr_last_recv, &addr_len );
if ( size >= 2 )
{
unsigned short chksum1;
unsigned short chksum2;
unsigned char *ptr;
ptr = (unsigned char *)state->udp_recv_buf;