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Xash3DArchive/engine/host.c

310 lines
6.6 KiB
C

//=======================================================================
// Copyright XashXT Group 2007 ©
// host.c - dedicated and shared host
//=======================================================================
#include <setjmp.h>
#include <windows.h>
#include <dsound.h>
#include "engine.h"
common_exp_t *Com; // fundamental callbacks
physic_exp_t *Phys;
host_parm_t host; // host parms
stdlib_api_t std;
byte *zonepool;
int ActiveApp;
bool Minimized;
char *buildstring = __TIME__ " " __DATE__;
void Key_Init (void);
void SCR_EndLoadingPlaque (void);
HINSTANCE global_hInstance;
dll_info_t common_dll = { "common.dll", NULL, "CreateAPI", NULL, NULL, true, sizeof(common_exp_t) };
dll_info_t physic_dll = { "physic.dll", NULL, "CreateAPI", NULL, NULL, true, sizeof(physic_exp_t) };
cvar_t *timescale;
cvar_t *fixedtime;
stdlib_api_t Host_GetStdio( bool crash_on_error )
{
static stdlib_api_t io;
io = std;
// overload some funcs
io.print = Com_Print;
io.printf = Com_Printf;
io.dprintf = Com_DPrintf;
io.wprintf = Com_DWarnf;
if(crash_on_error) io.error = Sys_Error;
else io.error = Host_Error;
return io;
}
void Host_InitCommon( char *funcname, int argc, char **argv )
{
common_t CreateCom;
stdlib_api_t io = Host_GetStdio( true );
Sys_LoadLibrary( &common_dll );
CreateCom = (void *)common_dll.main;
Com = CreateCom( &io );
Com->Init( argc, argv );
// TODO: init basedir here
FS_LoadGameInfo("gameinfo.txt");
zonepool = Mem_AllocPool("Zone Engine");
}
void Host_FreeCommon( void )
{
if(common_dll.link)
{
Mem_FreePool( &zonepool );
Com->Shutdown();
}
Sys_FreeLibrary( &common_dll );
}
void Host_InitPhysic( void )
{
static physic_imp_t pi;
physic_t CreatePhys;
pi.Compile = Com->Compile;
pi.Stdio = Host_GetStdio( false );
// phys callback
pi.Transform = SV_Transform;
Sys_LoadLibrary( &physic_dll );
CreatePhys = (void *)physic_dll.main;
Phys = CreatePhys( &pi );
Phys->Init();
}
void Host_FreePhysic( void )
{
if(physic_dll.link)
{
Phys->Shutdown();
}
Sys_FreeLibrary( &physic_dll );
}
/*
================
Host_AbortCurrentFrame
aborts the current host frame and goes on with the next one
================
*/
void Host_AbortCurrentFrame( void )
{
longjmp(host.abortframe, 1);
}
/*
=================
Host_Init
=================
*/
void Host_Init (char *funcname, int argc, char **argv)
{
char *s;
host.state = HOST_INIT; //initialzation started
global_hInstance = (HINSTANCE)GetModuleHandle( NULL );
if(!strcmp(funcname, "host_dedicated")) host.type = HOST_DEDICATED;
else if(!strcmp(funcname, "host_shared")) host.type = HOST_NORMAL;
else host.type = HOST_OFFLINE; // launcher can loading engine for some reasons
srand(time(NULL)); // init random generator
Host_InitCommon( funcname, argc, argv ); // loading common.dll
Cmd_Init( argc, argv );
Cvar_Init();
Key_Init();
PRVM_Init();
// get default configuration
Cbuf_AddText("exec keys.rc\n");
Cbuf_AddText("exec vars.rc\n");
Cbuf_Execute();
// init commands and vars
Cmd_AddCommand ("error", Host_Error_f);
host_speeds = Cvar_Get ("host_speeds", "0", 0);
host_frametime = Cvar_Get ("host_frametime", "0.01", 0);
timescale = Cvar_Get ("timescale", "1", 0);
fixedtime = Cvar_Get ("fixedtime", "0", 0);
if(host.type == HOST_DEDICATED) dedicated = Cvar_Get ("dedicated", "1", CVAR_INIT);
else dedicated = Cvar_Get ("dedicated", "0", CVAR_INIT);
s = va("Xash %g (%s)", XASH_VERSION, BUILDSTRING);
Cvar_Get ("version", s, CVAR_SERVERINFO|CVAR_INIT);
if (dedicated->value) Cmd_AddCommand ("quit", Sys_Quit);
NET_Init();
Netchan_Init();
Host_InitPhysic();
SV_Init();
CL_Init();
Cbuf_AddText("exec init.rc\n");
Cbuf_Execute();
// if stuffcmds wasn't run, then init.rc is probably missing, use default
if(!host.stuffcmdsrun) Cbuf_ExecuteText( EXEC_NOW, "stuffcmds\n" );
SCR_EndLoadingPlaque ();
Sys_DoubleTime(); // initialize timer
}
/*
=================
Host_Frame
=================
*/
void Host_Frame (double time)
{
char *s;
static double time_before, time_between, time_after;
if (setjmp(host.abortframe)) return;
rand(); // keep the random time dependent
// get new key events
Sys_SendKeyEvents();
do
{
s = Sys_ConsoleInput ();
if(s) Cbuf_AddText (va("%s\n",s));
} while (s);
Cbuf_Execute ();
// if at a full screen console, don't update unless needed
if (Minimized || host.type == HOST_DEDICATED )
{
Sys_Sleep (1);
}
if (host_speeds->value) time_before = Sys_DoubleTime();
SV_Frame (time);
if (host_speeds->value) time_between = Sys_DoubleTime();
CL_Frame (time);
if (host_speeds->value) time_after = Sys_DoubleTime();
if (host_speeds->value)
{
double all, sv, gm, cl, rf;
all = time_after - time_before;
sv = time_between - time_before;
cl = time_after - time_between;
gm = time_after_game - time_before_game;
rf = time_after_ref - time_before_ref;
sv -= gm;
cl -= rf;
Msg ("all:%.3f sv:%.3f gm:%.3f cl:%.3f rf:%.3f\n", all, sv, gm, cl, rf);
}
host.framecount++;
}
/*
=================
Host_Main
=================
*/
void Host_Main( void )
{
static double time, oldtime, newtime;
oldtime = host.realtime;
// main window message loop
while (host.type != HOST_OFFLINE)
{
oldtime = newtime;
newtime = Sys_DoubleTime();
time = newtime - oldtime;
Host_Frame (time); // engine frame
}
host.state = HOST_SHUTDOWN;
}
/*
=================
Host_Shutdown
=================
*/
void Host_Free (void)
{
SV_Shutdown ("Server shutdown\n", false);
CL_Shutdown ();
NET_Shutdown();
Host_FreePhysic();
Host_FreeCommon();
}
/*
=================
Host_Error
=================
*/
void Host_Error( const char *error, ... )
{
static char hosterror1[MAX_INPUTLINE];
static char hosterror2[MAX_INPUTLINE];
static bool recursive = false;
va_list argptr;
va_start( argptr, error );
vsprintf( hosterror1, error, argptr );
va_end( argptr );
if (host.framecount < 3 || host.state == HOST_SHUTDOWN)
Sys_Error ("%s", hosterror1 );
else Msg("Host_Error: %s", hosterror1);
if(recursive)
{
Msg("Host_Error: recursive %s", hosterror2);
Sys_Error ("%s", hosterror1);
}
recursive = true;
strncpy(hosterror2, hosterror1, sizeof(hosterror2));
SV_Shutdown (va("Server crashed: %s", hosterror1), false);
CL_Drop(); // drop clients
recursive = false;
Host_AbortCurrentFrame();
host.state = HOST_ERROR;
}
void Host_Error_f( void )
{
Host_Error( "%s\n", Cmd_Argv(1));
}