// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// $Id:$
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// This source is available for distribution and/or modification
// only under the terms of the DOOM Source Code License as
// published by id Software. All rights reserved.
//
// The source is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
// for more details.
//
// $Log:$
//
// DESCRIPTION:
//	DOOM Network game communication and protocol,
//	all OS independend parts.
//
//-----------------------------------------------------------------------------


static const char rcsid[] = "$Id: d_net.c,v 1.3 1997/02/03 22:01:47 b1 Exp $";


#include "m_menu.h"
#include "i_system.h"
#include "i_video.h"
#include "i_net.h"
#include "g_game.h"
#include "doomdef.h"
#include "doomstat.h"

#define	NCMD_EXIT		0x80000000
#define	NCMD_RETRANSMIT		0x40000000
#define	NCMD_SETUP		0x20000000
#define	NCMD_KILL		0x10000000	// kill game
#define	NCMD_CHECKSUM	 	0x0fffffff

 
doomcom_t*	doomcom;	
doomdata_t*	netbuffer;		// points inside doomcom


//
// NETWORKING
//
// gametic is the tic about to (or currently being) run
// maketic is the tick that hasn't had control made for it yet
// nettics[] has the maketics for all players 
//
// a gametic cannot be run until nettics[] > gametic for all players
//
#define	RESENDCOUNT	10
#define	PL_DRONE	0x80	// bit flag in doomdata->player

ticcmd_t	localcmds[BACKUPTICS];

ticcmd_t        netcmds[MAXPLAYERS][BACKUPTICS];
int         	nettics[MAXNETNODES];
boolean		nodeingame[MAXNETNODES];		// set false as nodes leave game
boolean		remoteresend[MAXNETNODES];		// set when local needs tics
int		resendto[MAXNETNODES];			// set when remote needs tics
int		resendcount[MAXNETNODES];

int		nodeforplayer[MAXPLAYERS];

int             maketic;
int		lastnettic;
int		skiptics;
int		ticdup;		
int		maxsend;	// BACKUPTICS/(2*ticdup)-1


void D_ProcessEvents (void); 
void G_BuildTiccmd (ticcmd_t *cmd); 
void D_DoAdvanceDemo (void);
 
boolean		reboundpacket;
doomdata_t	reboundstore;



//
//
//
int NetbufferSize (void)
{
    return (int)&(((doomdata_t *)0)->cmds[netbuffer->numtics]); 
}

//
// Checksum 
//
unsigned NetbufferChecksum (void)
{
    unsigned		c;
    int		i,l;

    c = 0x1234567;

    // FIXME -endianess?
#ifdef NORMALUNIX
    return 0;			// byte order problems
#endif

    l = (NetbufferSize () - (int)&(((doomdata_t *)0)->retransmitfrom))/4;
    for (i=0 ; i<l ; i++)
	c += ((unsigned *)&netbuffer->retransmitfrom)[i] * (i+1);

    return c & NCMD_CHECKSUM;
}

//
//
//
int ExpandTics (int low)
{
    int	delta;
	
    delta = low - (maketic&0xff);
	
    if (delta >= -64 && delta <= 64)
	return (maketic&~0xff) + low;
    if (delta > 64)
	return (maketic&~0xff) - 256 + low;
    if (delta < -64)
	return (maketic&~0xff) + 256 + low;
		
    I_Error ("ExpandTics: strange value %i at maketic %i",low,maketic);
    return 0;
}



//
// HSendPacket
//
void
HSendPacket
 (int	node,
  int	flags )
{
    netbuffer->checksum = NetbufferChecksum () | flags;

    if (!node)
    {
	reboundstore = *netbuffer;
	reboundpacket = true;
	return;
    }

    if (demoplayback)
	return;

    if (!netgame)
	I_Error ("Tried to transmit to another node");
		
    doomcom->command = CMD_SEND;
    doomcom->remotenode = node;
    doomcom->datalength = NetbufferSize ();

#if 0	// AJH HACK
    if (debugfile)
    {
	int		i;
	int		realretrans;
	if (netbuffer->checksum & NCMD_RETRANSMIT)
	    realretrans = ExpandTics (netbuffer->retransmitfrom);
	else
	    realretrans = -1;

	I_DBGprintf("send (%i + %i, R %i) [%i] ",
		 ExpandTics(netbuffer->starttic),
		 netbuffer->numtics, realretrans, doomcom->datalength);
	
	for (i=0 ; i<doomcom->datalength ; i++)
		I_DBGprintf("%i ",((byte *)netbuffer)[i]);

	I_DBGprintf("\n");
    }
#endif

    I_NetCmd ();
}

//
// HGetPacket
// Returns false if no packet is waiting
//
boolean HGetPacket (void)
{	
    if (reboundpacket)
    {
	*netbuffer = reboundstore;
	doomcom->remotenode = 0;
	reboundpacket = false;
	return true;
    }

    if (!netgame)
	return false;

    if (demoplayback)
	return false;
		
    doomcom->command = CMD_GET;
    I_NetCmd ();
    
    if (doomcom->remotenode == -1)
	return false;

    if (doomcom->datalength != NetbufferSize ())
    {
		I_DBGprintf("bad packet length %i\n",doomcom->datalength);
	return false;
    }
	
    if (NetbufferChecksum () != (netbuffer->checksum&NCMD_CHECKSUM) )
    {
		I_DBGprintf("bad packet checksum\n");
	return false;
    }

#if 0	// AJH uGFX Hack
    if (debugfile)
    {
	int		realretrans;
	int	i;
			
	if (netbuffer->checksum & NCMD_SETUP)
		I_DBGprintf("setup packet\n");
	else
	{
	    if (netbuffer->checksum & NCMD_RETRANSMIT)
		realretrans = ExpandTics (netbuffer->retransmitfrom);
	    else
		realretrans = -1;
	    
	    I_DBGprintf("get %i = (%i + %i, R %i)[%i] ",
		     doomcom->remotenode,
		     ExpandTics(netbuffer->starttic),
		     netbuffer->numtics, realretrans, doomcom->datalength);

	    for (i=0 ; i<doomcom->datalength ; i++)
	    	I_DBGprintf("%i ",((byte *)netbuffer)[i]);
	    I_DBGprintf("\n");
	}
    }
#endif
    return true;	
}


//
// GetPackets
//
char    exitmsg[80];

void GetPackets (void)
{
    int		netconsole;
    int		netnode;
    ticcmd_t	*src, *dest;
    int		realend;
    int		realstart;
				 
    while ( HGetPacket() )
    {
	if (netbuffer->checksum & NCMD_SETUP)
	    continue;		// extra setup packet
			
	netconsole = netbuffer->player & ~PL_DRONE;
	netnode = doomcom->remotenode;
	
	// to save bytes, only the low byte of tic numbers are sent
	// Figure out what the rest of the bytes are
	realstart = ExpandTics (netbuffer->starttic);		
	realend = (realstart+netbuffer->numtics);
	
	// check for exiting the game
	if (netbuffer->checksum & NCMD_EXIT)
	{
	    if (!nodeingame[netnode])
		continue;
	    nodeingame[netnode] = false;
	    playeringame[netconsole] = false;
	    strcpy (exitmsg, "Player 1 left the game");
	    exitmsg[7] += netconsole;
	    players[consoleplayer].message = exitmsg;
	    if (demorecording)
		G_CheckDemoStatus ();
	    continue;
	}
	
	// check for a remote game kill
	if (netbuffer->checksum & NCMD_KILL)
	    I_Error ("Killed by network driver");

	nodeforplayer[netconsole] = netnode;
	
	// check for retransmit request
	if ( resendcount[netnode] <= 0 
	     && (netbuffer->checksum & NCMD_RETRANSMIT) )
	{
	    resendto[netnode] = ExpandTics(netbuffer->retransmitfrom);
		I_DBGprintf ("retransmit from %i\n", resendto[netnode]);
	    resendcount[netnode] = RESENDCOUNT;
	}
	else
	    resendcount[netnode]--;
	
	// check for out of order / duplicated packet		
	if (realend == nettics[netnode])
	    continue;
			
	if (realend < nettics[netnode])
	{
		I_DBGprintf ("out of order packet (%i + %i)\n" ,
			 realstart,netbuffer->numtics);
	    continue;
	}
	
	// check for a missed packet
	if (realstart > nettics[netnode])
	{
	    // stop processing until the other system resends the missed tics
	    	I_DBGprintf("missed tics from %i (%i - %i)\n",
			 netnode, realstart, nettics[netnode]);
	    remoteresend[netnode] = true;
	    continue;
	}

	// update command store from the packet
        {
	    int		start;

	    remoteresend[netnode] = false;
		
	    start = nettics[netnode] - realstart;		
	    src = &netbuffer->cmds[start];

	    while (nettics[netnode] < realend)
	    {
		dest = &netcmds[netconsole][nettics[netnode]%BACKUPTICS];
		nettics[netnode]++;
		*dest = *src;
		src++;
	    }
	}
    }
}


//
// NetUpdate
// Builds ticcmds for console player,
// sends out a packet
//
int      gametime;

void NetUpdate (void)
{
    int             nowtime;
    int             newtics;
    int				i,j;
    int				realstart;
    int				gameticdiv;
    
    // check time
    nowtime = I_GetTime ()/ticdup;
    newtics = nowtime - gametime;
    gametime = nowtime;
	
    if (newtics <= 0) 	// nothing new to update
	goto listen; 

    if (skiptics <= newtics)
    {
	newtics -= skiptics;
	skiptics = 0;
    }
    else
    {
	skiptics -= newtics;
	newtics = 0;
    }
	
		
    netbuffer->player = consoleplayer;
    
    // build new ticcmds for console player
    gameticdiv = gametic/ticdup;
    for (i=0 ; i<newtics ; i++)
    {
	I_StartTic ();
	D_ProcessEvents ();
	if (maketic - gameticdiv >= BACKUPTICS/2-1)
	    break;          // can't hold any more
	
	//I_printf("mk:%i ",maketic);
	G_BuildTiccmd (&localcmds[maketic%BACKUPTICS]);
	maketic++;
    }


    if (singletics)
	return;         // singletic update is syncronous
    
    // send the packet to the other nodes
    for (i=0 ; i<doomcom->numnodes ; i++)
	if (nodeingame[i])
	{
	    netbuffer->starttic = realstart = resendto[i];
	    netbuffer->numtics = maketic - realstart;
	    if (netbuffer->numtics > BACKUPTICS)
		I_Error ("NetUpdate: netbuffer->numtics > BACKUPTICS");

	    resendto[i] = maketic - doomcom->extratics;

	    for (j=0 ; j< netbuffer->numtics ; j++)
		netbuffer->cmds[j] = 
		    localcmds[(realstart+j)%BACKUPTICS];
					
	    if (remoteresend[i])
	    {
		netbuffer->retransmitfrom = nettics[i];
		HSendPacket (i, NCMD_RETRANSMIT);
	    }
	    else
	    {
		netbuffer->retransmitfrom = 0;
		HSendPacket (i, 0);
	    }
	}
    
    // listen for other packets
  listen:
    GetPackets ();
}



//
// CheckAbort
//
void CheckAbort (void)
{
    event_t *ev;
    int		stoptic;
	
    stoptic = I_GetTime () + 2; 
    while (I_GetTime() < stoptic) 
	I_StartTic (); 
	
    I_StartTic ();
    for ( ; eventtail != eventhead 
	      ; eventtail = (++eventtail)&(MAXEVENTS-1) ) 
    { 
	ev = &events[eventtail]; 
	if (ev->type == ev_keydown && ev->data1 == KEY_ESCAPE)
	    I_Error ("Network game synchronization aborted.");
    } 
}


//
// D_ArbitrateNetStart
//
void D_ArbitrateNetStart (void)
{
    int		i;
    boolean	gotinfo[MAXNETNODES];
	
    autostart = true;
    memset (gotinfo,0,sizeof(gotinfo));
	
    if (doomcom->consoleplayer)
    {
	// listen for setup info from key player
    	I_printf ("listening for network start info...\n");
	while (1)
	{
	    CheckAbort ();
	    if (!HGetPacket ())
		continue;
	    if (netbuffer->checksum & NCMD_SETUP)
	    {
		if (netbuffer->player != VERSION)
		    I_Error ("Different DOOM versions cannot play a net game!");
		startskill = netbuffer->retransmitfrom & 15;
		deathmatch = (netbuffer->retransmitfrom & 0xc0) >> 6;
		nomonsters = (netbuffer->retransmitfrom & 0x20) > 0;
		respawnparm = (netbuffer->retransmitfrom & 0x10) > 0;
		startmap = netbuffer->starttic & 0x3f;
		startepisode = netbuffer->starttic >> 6;
		return;
	    }
	}
    }
    else
    {
	// key player, send the setup info
    	I_printf ("sending network start info...\n");
	do
	{
	    CheckAbort ();
	    for (i=0 ; i<doomcom->numnodes ; i++)
	    {
		netbuffer->retransmitfrom = startskill;
		if (deathmatch)
		    netbuffer->retransmitfrom |= (deathmatch<<6);
		if (nomonsters)
		    netbuffer->retransmitfrom |= 0x20;
		if (respawnparm)
		    netbuffer->retransmitfrom |= 0x10;
		netbuffer->starttic = startepisode * 64 + startmap;
		netbuffer->player = VERSION;
		netbuffer->numtics = 0;
		HSendPacket (i, NCMD_SETUP);
	    }

#if 1
	    for(i = 10 ; i  &&  HGetPacket(); --i)
	    {
		if((netbuffer->player&0x7f) < MAXNETNODES)
		    gotinfo[netbuffer->player&0x7f] = true;
	    }
#else
	    while (HGetPacket ())
	    {
		gotinfo[netbuffer->player&0x7f] = true;
	    }
#endif

	    for (i=1 ; i<doomcom->numnodes ; i++)
		if (!gotinfo[i])
		    break;
	} while (i < doomcom->numnodes);
    }
}

//
// D_CheckNetGame
// Works out player numbers among the net participants
//
extern	int			viewangleoffset;

void D_CheckNetGame (void)
{
    int             i;
	
    for (i=0 ; i<MAXNETNODES ; i++)
    {
	nodeingame[i] = false;
       	nettics[i] = 0;
	remoteresend[i] = false;	// set when local needs tics
	resendto[i] = 0;		// which tic to start sending
    }
	
    // I_InitNetwork sets doomcom and netgame
    I_InitNetwork ();
    if (doomcom->id != DOOMCOM_ID)
	I_Error ("Doomcom buffer invalid!");
    
    netbuffer = &doomcom->data;
    consoleplayer = displayplayer = doomcom->consoleplayer;
    if (netgame)
	D_ArbitrateNetStart ();

    I_printf ("startskill %i  deathmatch: %i  startmap: %i  startepisode: %i\n",
	    startskill, deathmatch, startmap, startepisode);
	
    // read values out of doomcom
    ticdup = doomcom->ticdup;
    maxsend = BACKUPTICS/(2*ticdup)-1;
    if (maxsend<1)
	maxsend = 1;
			
    for (i=0 ; i<doomcom->numplayers ; i++)
	playeringame[i] = true;
    for (i=0 ; i<doomcom->numnodes ; i++)
	nodeingame[i] = true;
	
    I_printf ("player %i of %i (%i nodes)\n",
	    consoleplayer+1, doomcom->numplayers, doomcom->numnodes);

}


//
// D_QuitNetGame
// Called before quitting to leave a net game
// without hanging the other players
//
void D_QuitNetGame (void)
{
    int             i, j;
	
    if (!netgame || !usergame || consoleplayer == -1 || demoplayback)
	return;
	
    // send a bunch of packets for security
    netbuffer->player = consoleplayer;
    netbuffer->numtics = 0;
    for (i=0 ; i<4 ; i++)
    {
	for (j=1 ; j<doomcom->numnodes ; j++)
	    if (nodeingame[j])
		HSendPacket (j, NCMD_EXIT);
	I_WaitVBL (1);
    }
}



//
// TryRunTics
//
int	frametics[4];
int	frameon;
int	frameskip[4];
int	oldnettics;

extern	boolean	advancedemo;

void TryRunTics (void)
{
    int		i;
    int		lowtic;
    int		entertic;
    static int	oldentertics;
    int		realtics;
    int		availabletics;
    int		counts;
    int		numplaying;
    
    // get real tics		
    entertic = I_GetTime ()/ticdup;
    realtics = entertic - oldentertics;
    oldentertics = entertic;
    
    // get available tics
    NetUpdate ();
	
    lowtic = MAXINT;
    numplaying = 0;
    for (i=0 ; i<doomcom->numnodes ; i++)
    {
	if (nodeingame[i])
	{
	    numplaying++;
	    if (nettics[i] < lowtic)
		lowtic = nettics[i];
	}
    }
    availabletics = lowtic - gametic/ticdup;
    
    // decide how many tics to run
    if (realtics < availabletics-1)
	counts = realtics+1;
    else if (realtics < availabletics)
	counts = realtics;
    else
	counts = availabletics;
    
    if (counts < 1)
	counts = 1;
		
    frameon++;

    	I_DBGprintf("=======real: %i  avail: %i  game: %i\n",
		 realtics, availabletics,counts);

    if (!demoplayback)
    {	
	// ideally nettics[0] should be 1 - 3 tics above lowtic
	// if we are consistantly slower, speed up time
	for (i=0 ; i<MAXPLAYERS ; i++)
	    if (playeringame[i])
		break;
	if (consoleplayer == i)
	{
	    // the key player does not adapt
	}
	else
	{
	    if (nettics[0] <= nettics[nodeforplayer[i]])
	    {
		gametime--;
		// I_printf ("-");
	    }
	    frameskip[frameon&3] = (oldnettics > nettics[nodeforplayer[i]]);
	    oldnettics = nettics[0];
	    if (frameskip[0] && frameskip[1] && frameskip[2] && frameskip[3])
	    {
		skiptics = 1;
		// I_printf ("+");
	    }
	}
    }// demoplayback
	
    // wait for new tics if needed
    while (lowtic < gametic/ticdup + counts)	
    {
	NetUpdate ();   
	lowtic = MAXINT;
	
	for (i=0 ; i<doomcom->numnodes ; i++)
	    if (nodeingame[i] && nettics[i] < lowtic)
		lowtic = nettics[i];
	
	if (lowtic < gametic/ticdup)
	    I_Error ("TryRunTics: lowtic < gametic");
				
	// don't stay in here forever -- give the menu a chance to work
	if (I_GetTime ()/ticdup - entertic >= 20)
	{
	    M_Ticker ();
	    return;
	} 
    }
    
    // run the count * ticdup dics
    while (counts--)
    {
	for (i=0 ; i<ticdup ; i++)
	{
	    if (gametic/ticdup > lowtic)
		I_Error ("gametic>lowtic");
	    if (advancedemo)
		D_DoAdvanceDemo ();
	    M_Ticker ();
	    G_Ticker ();
	    gametic++;
	    
	    // modify command for duplicated tics
	    if (i != ticdup-1)
	    {
		ticcmd_t	*cmd;
		int			buf;
		int			j;
				
		buf = (gametic/ticdup)%BACKUPTICS; 
		for (j=0 ; j<MAXPLAYERS ; j++)
		{
		    cmd = &netcmds[j][buf];
		    cmd->chatchar = 0;
		    if (cmd->buttons & BT_SPECIAL)
			cmd->buttons = 0;
		}
	    }
	}
	NetUpdate ();	// check for new console commands
    }
}
9'>379</a>
<a id='n380' href='#n380'>380</a>
<a id='n381' href='#n381'>381</a>
<a id='n382' href='#n382'>382</a>
<a id='n383' href='#n383'>383</a>
<a id='n384' href='#n384'>384</a>
<a id='n385' href='#n385'>385</a>
<a id='n386' href='#n386'>386</a>
<a id='n387' href='#n387'>387</a>
<a id='n388' href='#n388'>388</a>
<a id='n389' href='#n389'>389</a>
<a id='n390' href='#n390'>390</a>
<a id='n391' href='#n391'>391</a>
<a id='n392' href='#n392'>392</a>
<a id='n393' href='#n393'>393</a>
<a id='n394' href='#n394'>394</a>
<a id='n395' href='#n395'>395</a>
<a id='n396' href='#n396'>396</a>
<a id='n397' href='#n397'>397</a>
<a id='n398' href='#n398'>398</a>
<a id='n399' href='#n399'>399</a>
<a id='n400' href='#n400'>400</a>
<a id='n401' href='#n401'>401</a>
<a id='n402' href='#n402'>402</a>
<a id='n403' href='#n403'>403</a>
<a id='n404' href='#n404'>404</a>
<a id='n405' href='#n405'>405</a>
<a id='n406' href='#n406'>406</a>
<a id='n407' href='#n407'>407</a>
<a id='n408' href='#n408'>408</a>
<a id='n409' href='#n409'>409</a>
<a id='n410' href='#n410'>410</a>
<a id='n411' href='#n411'>411</a>
<a id='n412' href='#n412'>412</a>
<a id='n413' href='#n413'>413</a>
<a id='n414' href='#n414'>414</a>
<a id='n415' href='#n415'>415</a>
<a id='n416' href='#n416'>416</a>
<a id='n417' href='#n417'>417</a>
<a id='n418' href='#n418'>418</a>
<a id='n419' href='#n419'>419</a>
<a id='n420' href='#n420'>420</a>
<a id='n421' href='#n421'>421</a>
<a id='n422' href='#n422'>422</a>
<a id='n423' href='#n423'>423</a>
<a id='n424' href='#n424'>424</a>
<a id='n425' href='#n425'>425</a>
<a id='n426' href='#n426'>426</a>
<a id='n427' href='#n427'>427</a>
<a id='n428' href='#n428'>428</a>
<a id='n429' href='#n429'>429</a>
<a id='n430' href='#n430'>430</a>
<a id='n431' href='#n431'>431</a>
<a id='n432' href='#n432'>432</a>
<a id='n433' href='#n433'>433</a>
<a id='n434' href='#n434'>434</a>
<a id='n435' href='#n435'>435</a>
<a id='n436' href='#n436'>436</a>
<a id='n437' href='#n437'>437</a>
<a id='n438' href='#n438'>438</a>
<a id='n439' href='#n439'>439</a>
<a id='n440' href='#n440'>440</a>
<a id='n441' href='#n441'>441</a>
<a id='n442' href='#n442'>442</a>
<a id='n443' href='#n443'>443</a>
<a id='n444' href='#n444'>444</a>
<a id='n445' href='#n445'>445</a>
<a id='n446' href='#n446'>446</a>
<a id='n447' href='#n447'>447</a>
<a id='n448' href='#n448'>448</a>
<a id='n449' href='#n449'>449</a>
<a id='n450' href='#n450'>450</a>
<a id='n451' href='#n451'>451</a>
<a id='n452' href='#n452'>452</a>
<a id='n453' href='#n453'>453</a>
<a id='n454' href='#n454'>454</a>
<a id='n455' href='#n455'>455</a>
<a id='n456' href='#n456'>456</a>
<a id='n457' href='#n457'>457</a>
<a id='n458' href='#n458'>458</a>
<a id='n459' href='#n459'>459</a>
<a id='n460' href='#n460'>460</a>
<a id='n461' href='#n461'>461</a>
<a id='n462' href='#n462'>462</a>
<a id='n463' href='#n463'>463</a>
<a id='n464' href='#n464'>464</a>
<a id='n465' href='#n465'>465</a>
<a id='n466' href='#n466'>466</a>
<a id='n467' href='#n467'>467</a>
<a id='n468' href='#n468'>468</a>
<a id='n469' href='#n469'>469</a>
<a id='n470' href='#n470'>470</a>
<a id='n471' href='#n471'>471</a>
<a id='n472' href='#n472'>472</a>
<a id='n473' href='#n473'>473</a>
<a id='n474' href='#n474'>474</a>
<a id='n475' href='#n475'>475</a>
<a id='n476' href='#n476'>476</a>
<a id='n477' href='#n477'>477</a>
<a id='n478' href='#n478'>478</a>
<a id='n479' href='#n479'>479</a>
<a id='n480' href='#n480'>480</a>
<a id='n481' href='#n481'>481</a>
<a id='n482' href='#n482'>482</a>
<a id='n483' href='#n483'>483</a>
<a id='n484' href='#n484'>484</a>
<a id='n485' href='#n485'>485</a>
<a id='n486' href='#n486'>486</a>
<a id='n487' href='#n487'>487</a>
<a id='n488' href='#n488'>488</a>
<a id='n489' href='#n489'>489</a>
<a id='n490' href='#n490'>490</a>
<a id='n491' href='#n491'>491</a>
<a id='n492' href='#n492'>492</a>
<a id='n493' href='#n493'>493</a>
<a id='n494' href='#n494'>494</a>
<a id='n495' href='#n495'>495</a>
<a id='n496' href='#n496'>496</a>
<a id='n497' href='#n497'>497</a>
<a id='n498' href='#n498'>498</a>
<a id='n499' href='#n499'>499</a>
<a id='n500' href='#n500'>500</a>
<a id='n501' href='#n501'>501</a>
<a id='n502' href='#n502'>502</a>
<a id='n503' href='#n503'>503</a>
<a id='n504' href='#n504'>504</a>
<a id='n505' href='#n505'>505</a>
<a id='n506' href='#n506'>506</a>
<a id='n507' href='#n507'>507</a>
<a id='n508' href='#n508'>508</a>
<a id='n509' href='#n509'>509</a>
<a id='n510' href='#n510'>510</a>
<a id='n511' href='#n511'>511</a>
<a id='n512' href='#n512'>512</a>
<a id='n513' href='#n513'>513</a>
<a id='n514' href='#n514'>514</a>
<a id='n515' href='#n515'>515</a>
<a id='n516' href='#n516'>516</a>
<a id='n517' href='#n517'>517</a>
<a id='n518' href='#n518'>518</a>
<a id='n519' href='#n519'>519</a>
<a id='n520' href='#n520'>520</a>
<a id='n521' href='#n521'>521</a>
<a id='n522' href='#n522'>522</a>
<a id='n523' href='#n523'>523</a>
<a id='n524' href='#n524'>524</a>
<a id='n525' href='#n525'>525</a>
<a id='n526' href='#n526'>526</a>
<a id='n527' href='#n527'>527</a>
<a id='n528' href='#n528'>528</a>
<a id='n529' href='#n529'>529</a>
<a id='n530' href='#n530'>530</a>
<a id='n531' href='#n531'>531</a>
<a id='n532' href='#n532'>532</a>
<a id='n533' href='#n533'>533</a>
<a id='n534' href='#n534'>534</a>
<a id='n535' href='#n535'>535</a>
<a id='n536' href='#n536'>536</a>
<a id='n537' href='#n537'>537</a>
<a id='n538' href='#n538'>538</a>
<a id='n539' href='#n539'>539</a>
<a id='n540' href='#n540'>540</a>
<a id='n541' href='#n541'>541</a>
<a id='n542' href='#n542'>542</a>
<a id='n543' href='#n543'>543</a>
<a id='n544' href='#n544'>544</a>
<a id='n545' href='#n545'>545</a>
<a id='n546' href='#n546'>546</a>
<a id='n547' href='#n547'>547</a>
<a id='n548' href='#n548'>548</a>
<a id='n549' href='#n549'>549</a>
<a id='n550' href='#n550'>550</a>
<a id='n551' href='#n551'>551</a>
<a id='n552' href='#n552'>552</a>
<a id='n553' href='#n553'>553</a>
<a id='n554' href='#n554'>554</a>
<a id='n555' href='#n555'>555</a>
<a id='n556' href='#n556'>556</a>
<a id='n557' href='#n557'>557</a>
<a id='n558' href='#n558'>558</a>
<a id='n559' href='#n559'>559</a>
<a id='n560' href='#n560'>560</a>
<a id='n561' href='#n561'>561</a>
<a id='n562' href='#n562'>562</a>
<a id='n563' href='#n563'>563</a>
<a id='n564' href='#n564'>564</a>
<a id='n565' href='#n565'>565</a>
<a id='n566' href='#n566'>566</a>
<a id='n567' href='#n567'>567</a>
<a id='n568' href='#n568'>568</a>
<a id='n569' href='#n569'>569</a>
<a id='n570' href='#n570'>570</a>
<a id='n571' href='#n571'>571</a>
<a id='n572' href='#n572'>572</a>
<a id='n573' href='#n573'>573</a>
<a id='n574' href='#n574'>574</a>
<a id='n575' href='#n575'>575</a>
<a id='n576' href='#n576'>576</a>
<a id='n577' href='#n577'>577</a>
<a id='n578' href='#n578'>578</a>
<a id='n579' href='#n579'>579</a>
<a id='n580' href='#n580'>580</a>
<a id='n581' href='#n581'>581</a>
<a id='n582' href='#n582'>582</a>
<a id='n583' href='#n583'>583</a>
<a id='n584' href='#n584'>584</a>
<a id='n585' href='#n585'>585</a>
<a id='n586' href='#n586'>586</a>
<a id='n587' href='#n587'>587</a>
<a id='n588' href='#n588'>588</a>
<a id='n589' href='#n589'>589</a>
<a id='n590' href='#n590'>590</a>
<a id='n591' href='#n591'>591</a>
<a id='n592' href='#n592'>592</a>
<a id='n593' href='#n593'>593</a>
<a id='n594' href='#n594'>594</a>
<a id='n595' href='#n595'>595</a>
<a id='n596' href='#n596'>596</a>
<a id='n597' href='#n597'>597</a>
<a id='n598' href='#n598'>598</a>
<a id='n599' href='#n599'>599</a>
<a id='n600' href='#n600'>600</a>
<a id='n601' href='#n601'>601</a>
<a id='n602' href='#n602'>602</a>
<a id='n603' href='#n603'>603</a>
<a id='n604' href='#n604'>604</a>
</pre></td>
<td class='lines'><pre><code>