自学教程：C++ trap_Args函数代码示例

// Explicit server command to remove a view from the client's snapshotvoid CG_mvDelete_f(void){	if (cg.demoPlayback)	{		return;	}	else	{		int pID = -1;		if (trap_Argc() > 1)		{			char aName[64];			trap_Args(aName, sizeof(aName));			pID = CG_findClientNum(aName);		}		else		{			cg_window_t *w = cg.mvCurrentActive;			if (w != NULL)			{				pID = (w->mvInfo & MV_PID);			}		}		if (pID >= 0 && CG_mvMergedClientLocate(pID))		{			trap_SendClientCommand(va("mvdel %d/n", pID));		}	}}

/*===================CG_CenterEcho_f===================*/void CG_CenterEcho_f( int localPlayerNum ) {	char text[1024];	trap_Args( text, sizeof( text ) );	CG_ReplaceCharacter( text, '//', '/n' );	CG_CenterPrint( localPlayerNum, text, SCREEN_HEIGHT * 0.30, 0.5 );}

/*===================CG_DumpLocation_fDump a target_location definition to a file===================*/static void CG_DumpLocation_f( void ) {	char locfilename[MAX_QPATH];	char locname[MAX_STRING_CHARS];	char *extptr, *buffptr;	fileHandle_t f;	// Check for argument	if ( trap_Argc() < 2 ) {		CG_Printf( "Usage: dumploc <locationname>/n" );		return;	}	trap_Args( locname, sizeof( locname ) );	// Open locations file	Q_strncpyz( locfilename, cgs.mapname, sizeof( locfilename ) );	extptr = locfilename + strlen( locfilename ) - 4;	if ( extptr < locfilename || Q_stricmp( extptr, ".bsp" ) ) {		CG_Printf( "Unable to dump, unknown map name?/n" );		return;	}	Q_strncpyz( extptr, ".loc", 5 );	trap_FS_FOpenFile( locfilename, &f, FS_APPEND_SYNC );	if ( !f ) {		CG_Printf( "Failed to open '%s' for writing./n", locfilename );		return;	}	// Strip bad characters out	for ( buffptr = locname; *buffptr; buffptr++ )	{		if ( *buffptr == '/n' ) {			*buffptr = ' ';		} else if ( *buffptr == '"' ) {			*buffptr = '/'';		}	}	// Kill any trailing space as well	if ( *( buffptr - 1 ) == ' ' ) {		*( buffptr - 1 ) = 0;	}	// Build the entity definition	buffptr = va(   "{/n/"classname/" /"target_location/"/n/"origin/" /"%i %i %i/"/n/"message/" /"%s/"/n}/n/n",					(int) cg.snap->ps.origin[0], (int) cg.snap->ps.origin[1], (int) cg.snap->ps.origin[2], locname );	// And write out/acknowledge	trap_FS_Write( buffptr, strlen( buffptr ), f );	trap_FS_FCloseFile( f );	CG_Printf( "Entity dumped to '%s' (%i %i %i)./n", locfilename,			   (int) cg.snap->ps.origin[0], (int) cg.snap->ps.origin[1], (int) cg.snap->ps.origin[2] );}

static void CG_VoiceTellAttacker_f( void ) {	int		clientNum;	char	command[128];	char	message[128];	clientNum = CG_LastAttacker();	if ( clientNum == -1 ) {		return;	}	trap_Args( message, 128 );	Com_sprintf( command, 128, "vtell %i %s", clientNum, message );	trap_SendClientCommand( command );}

static void CG_TellTarget_f( void ) {	int		clientNum;	char	command[128];	char	message[128];	clientNum = CG_CrosshairPlayer();	if ( clientNum == -1 ) {		return;	}	trap_Args( message, 128 );	Com_sprintf( command, 128, "tell %i %s", clientNum, message );	trap_SendClientCommand( command );}

static void CG_VoiceTellAttacker_f( int localPlayerNum ) {	int		playerNum;	char	command[128];	char	message[128];	playerNum = CG_LastAttacker( localPlayerNum );	if ( playerNum == -1 ) {		return;	}	trap_Args( message, 128 );	Com_sprintf( command, 128, "%s %i %s", Com_LocalPlayerCvarName( localPlayerNum, "vtell" ), playerNum, message );	trap_SendClientCommand( command );}

static void CG_TellTarget_f( int localPlayerNum ) {	int		playerNum;	char	command[128];	char	message[128];	playerNum = CG_CrosshairPlayer( localPlayerNum );	if ( playerNum == -1 ) {		return;	}	trap_Args( message, 128 );	Com_sprintf( command, 128, "%s %i %s", Com_LocalPlayerCvarName( localPlayerNum, "tell" ), playerNum, message );	trap_SendClientCommand( command );}

// Explicit server command to add a view to the client's snapshotvoid CG_mvNew_f(void){    if(cg.demoPlayback || trap_Argc() < 2) return;    else {        int pID;        char aName[64];        trap_Args(aName, sizeof(aName));        pID = CG_findClientNum(aName);        if(pID >= 0 && !CG_mvMergedClientLocate(pID)) {            trap_SendClientCommand(va("mvadd %d/n", pID));        }    }}

static void CG_HelpCmd_f(void){    char buffer[MAX_BUFFERLEN];    if(trap_Argc()>1)    {        trap_Args(buffer,MAX_BUFFERLEN);        if(!Q_stricmp(buffer,"g_gametype"))        {            int i;            Com_Printf("GT# -> gametype:/n");            for(i=0; gameNames[i]!=NULL; i++)                Com_Printf("%3i -> %s/n",i,gameNames[i]);        }    }    else    {        Com_Printf("available help:/n");        Com_Printf(" g_gametype/n");    }}

void CG_Drop_f( void ) {	char	command[ 128 ];	char	message[ 128 ];	gitem_t	*item;	int	j;	if ( cg.snap->ps.persistant[ PERS_TEAM ] == TEAM_SPECTATOR ) {		return;	}	if ( cg.predictedPlayerState.stats[ STAT_HEALTH ] <= 0 ) {		CG_Printf( "You must be alive to use this command./n" );		return;	}	trap_Args( message, 128 );	item = BG_FindItem( message );	if ( !item ) {		CG_Printf( "unknown item: %s/n", message );		return;	}	if ( !cg_items[ item->giTag ].registered ) {		return;	}	j = item->giTag;	switch ( item->giType ) {	case IT_WEAPON:		if ( cgs.dmflags & 256 ) {			return;		}		if ( !( cg.snap->ps.stats[ STAT_WEAPONS ] & ( 1 << j ) ) ) {			CG_Printf( "Out of item: %s/n", message );			return;		}		if ( cg.snap->ps.weaponstate != WEAPON_READY ) {			return;		}		if ( j == cg.snap->ps.weapon ) {			return;		}		if ( j <= WP_MACHINEGUN || j == WP_GRAPPLING_HOOK ) {			CG_Printf( "Item is not dropable./n" );			return;		}	case IT_AMMO:		if ( cg.snap->ps.ammo[ j ] < 1 ) {			CG_Printf( "Out of item: %s/n", message );			return;		}		break;	case IT_POWERUP:		if ( cg.snap->ps.powerups[ j ] <= cg.time ) {			CG_Printf( "Out of item: %s/n", message );			return;		}		break;	case IT_HOLDABLE:		if ( j == HI_KAMIKAZE ) {			CG_Printf( "Item is not dropable./n" );			return;		}		if ( bg_itemlist[ cg.snap->ps.stats[ STAT_HOLDABLE_ITEM ] ].giTag != j ) {			CG_Printf( "Out of item: %s/n", message );			return;		}		break;	default:		CG_Printf( "Item is not dropable./n" );		return;	}	Com_sprintf( command, 128, "drop %s", message );	trap_SendClientCommand( command );}