ref: d78780cfc3f4c5c601bc19ae7976c2ae26ac9495
dir: /src/net_structrw.c/
// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// $Id: net_structrw.c 288 2006-01-13 02:22:47Z fraggle $
//
// Copyright(C) 2005 Simon Howard
//
// This program 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 2
// of the License, or (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
//
// $Log$
// Revision 1.4 2006/01/13 02:22:47 fraggle
// Update prototypes to match header. Make sure we include the header in the
// source file.
//
// Revision 1.3 2006/01/13 02:20:12 fraggle
// Signed integer read functions. Use these when reading ticcmd diffs.
//
// Revision 1.2 2006/01/11 01:37:53 fraggle
// ticcmd diffs: allow compare and patching ticcmds, and reading/writing
// ticdiffs to packets.
//
// Revision 1.1 2005/12/30 18:58:22 fraggle
// Fix client code to correctly send reply to server on connection.
// Add "waiting screen" while waiting for the game to start.
// Hook in the new networking code into the main game code.
//
//
// Reading and writing various structures into packets
//
#include <stdlib.h>
#include <string.h>
#include "net_packet.h"
#include "net_structrw.h"
void NET_WriteSettings(net_packet_t *packet, net_gamesettings_t *settings)
{
NET_WriteInt8(packet, settings->ticdup);
NET_WriteInt8(packet, settings->extratics);
NET_WriteInt8(packet, settings->deathmatch);
NET_WriteInt8(packet, settings->episode);
NET_WriteInt8(packet, settings->map);
NET_WriteInt8(packet, settings->skill);
}
boolean NET_ReadSettings(net_packet_t *packet, net_gamesettings_t *settings)
{
return NET_ReadInt8(packet, (unsigned int *) &settings->ticdup)
&& NET_ReadInt8(packet, (unsigned int *) &settings->extratics)
&& NET_ReadInt8(packet, (unsigned int *) &settings->deathmatch)
&& NET_ReadInt8(packet, (unsigned int *) &settings->episode)
&& NET_ReadInt8(packet, (unsigned int *) &settings->map)
&& NET_ReadInt8(packet, (unsigned int *) &settings->skill);
}
void NET_WriteTiccmdDiff(net_packet_t *packet, net_ticdiff_t *diff,
boolean lowres_turn)
{
// Header
NET_WriteInt8(packet, diff->diff);
// Write the fields which are enabled:
if (diff->diff & NET_TICDIFF_FORWARD)
NET_WriteInt8(packet, diff->cmd.forwardmove);
if (diff->diff & NET_TICDIFF_SIDE)
NET_WriteInt8(packet, diff->cmd.sidemove);
if (diff->diff & NET_TICDIFF_TURN)
{
if (lowres_turn)
{
NET_WriteInt8(packet, diff->cmd.angleturn / 256);
}
else
{
NET_WriteInt16(packet, diff->cmd.angleturn);
}
}
if (diff->diff & NET_TICDIFF_BUTTONS)
NET_WriteInt8(packet, diff->cmd.buttons);
if (diff->diff & NET_TICDIFF_CONSISTANCY)
NET_WriteInt8(packet, diff->cmd.consistancy);
if (diff->diff & NET_TICDIFF_CHATCHAR)
NET_WriteInt8(packet, diff->cmd.chatchar);
}
boolean NET_ReadTiccmdDiff(net_packet_t *packet, net_ticdiff_t *diff,
boolean lowres_turn)
{
unsigned int val;
signed int sval;
// Read header
if (!NET_ReadInt8(packet, &diff->diff))
return false;
// Read fields
if (diff->diff & NET_TICDIFF_FORWARD)
{
if (!NET_ReadSInt8(packet, &sval))
return false;
diff->cmd.forwardmove = sval;
}
if (diff->diff & NET_TICDIFF_SIDE)
{
if (!NET_ReadSInt8(packet, &sval))
return false;
diff->cmd.sidemove = sval;
}
if (diff->diff & NET_TICDIFF_TURN)
{
if (lowres_turn)
{
if (!NET_ReadSInt8(packet, &sval))
return false;
diff->cmd.angleturn = sval * 256;
}
else
{
if (!NET_ReadSInt16(packet, &sval))
return false;
diff->cmd.angleturn = sval;
}
}
if (diff->diff & NET_TICDIFF_BUTTONS)
{
if (!NET_ReadInt8(packet, &val))
return false;
diff->cmd.buttons = val;
}
if (diff->diff & NET_TICDIFF_CONSISTANCY)
{
if (!NET_ReadInt8(packet, &val))
return false;
diff->cmd.consistancy = val;
}
if (diff->diff & NET_TICDIFF_CHATCHAR)
{
if (!NET_ReadInt8(packet, &val))
return false;
diff->cmd.chatchar = val;
}
return true;
}
void NET_TiccmdDiff(ticcmd_t *tic1, ticcmd_t *tic2, net_ticdiff_t *diff)
{
diff->diff = 0;
diff->cmd = *tic2;
if (tic1->forwardmove != tic2->forwardmove)
diff->diff |= NET_TICDIFF_FORWARD;
if (tic1->sidemove != tic2->sidemove)
diff->diff |= NET_TICDIFF_SIDE;
if (tic1->angleturn != tic2->angleturn)
diff->diff |= NET_TICDIFF_TURN;
if (tic1->buttons != tic2->buttons)
diff->diff |= NET_TICDIFF_BUTTONS;
if (tic1->consistancy != tic2->consistancy)
diff->diff |= NET_TICDIFF_CONSISTANCY;
if (tic2->chatchar != 0)
diff->diff |= NET_TICDIFF_CHATCHAR;
}
void NET_TiccmdPatch(ticcmd_t *src, net_ticdiff_t *diff, ticcmd_t *dest)
{
memcpy(dest, src, sizeof(ticcmd_t));
// Apply the diff
if (diff->diff & NET_TICDIFF_FORWARD)
dest->forwardmove = diff->cmd.forwardmove;
if (diff->diff & NET_TICDIFF_SIDE)
dest->sidemove = diff->cmd.sidemove;
if (diff->diff & NET_TICDIFF_TURN)
dest->angleturn = diff->cmd.angleturn;
if (diff->diff & NET_TICDIFF_BUTTONS)
dest->buttons = diff->cmd.buttons;
if (diff->diff & NET_TICDIFF_CONSISTANCY)
dest->consistancy = diff->cmd.consistancy;
if (diff->diff & NET_TICDIFF_CHATCHAR)
dest->chatchar = diff->cmd.chatchar;
else
dest->chatchar = 0;
}