src/lua/COPYRIGHT


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Lua License
-----------

Lua is licensed under the terms of the MIT license reproduced below.
This means that Lua is free software and can be used for both academic
and commercial purposes at absolutely no cost.

For details and rationale, see http://www.lua.org/license.html .

===============================================================================

Copyright (C) 1994-2008 Lua.org, PUC-Rio.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

===============================================================================

(end of COPYRIGHT)
/*
Minetest-c55
Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>

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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#ifndef CLIENTSERVER_HEADER
#define CLIENTSERVER_HEADER

#include "utility.h"

#define PROTOCOL_ID 0x4f457403

enum ToClientCommand
{
	TOCLIENT_INIT = 0x10,
	/*
		Server's reply to TOSERVER_INIT.
		Sent second after connected.

		[0] u16 TOSERVER_INIT
		[2] u8 deployed version
		[3] v3s16 player's position + v3f(0,BS/2,0) floatToInt'd
		[4] u64 map seed (new as of 2011-02-27)
	*/

	TOCLIENT_BLOCKDATA = 0x20, //TODO: Multiple blocks
	TOCLIENT_ADDNODE = 0x21,
	TOCLIENT_REMOVENODE = 0x22,
	
	TOCLIENT_PLAYERPOS = 0x23,
	/*
		[0] u16 command
		// Followed by an arbitary number of these:
		// Number is determined from packet length.
		[N] u16 peer_id
		[N+2] v3s32 position*100
		[N+2+12] v3s32 speed*100
		[N+2+12+12] s32 pitch*100
		[N+2+12+12+4] s32 yaw*100
	*/

	TOCLIENT_PLAYERINFO = 0x24,
	/*
		[0] u16 command
		// Followed by an arbitary number of these:
		// Number is determined from packet length.
		[N] u16 peer_id
		[N] char[20] name
	*/
	
	TOCLIENT_OPT_BLOCK_NOT_FOUND = 0x25, // Not used

	TOCLIENT_SECTORMETA = 0x26, // Not used
	/*
		[0] u16 command
		[2] u8 sector count
		[3...] v2s16 pos + sector metadata
	*/

	TOCLIENT_INVENTORY = 0x27,
	/*
		[0] u16 command
		[2] serialized inventory
	*/
	
	TOCLIENT_OBJECTDATA = 0x28,
	/*
		Sent as unreliable.

		u16 command
		u16 number of player positions
		for each player:
			v3s32 position*100
			v3s32 speed*100
			s32 pitch*100
			s32 yaw*100
		u16 count of blocks
		for each block:
			v3s16 blockpos
			block objects
	*/

	TOCLIENT_TIME_OF_DAY = 0x29,
	/*
		u16 command
		u16 time (0-23999)
	*/

	TOCLIENT_CHAT_MESSAGE = 0x30,
	/*
		u16 command
		u16 length
		wstring message
	*/

	TOCLIENT_ACTIVE_OBJECT_REMOVE_ADD = 0x31,
	/*
		u16 command
		u16 count of removed objects
		for all removed objects {
			u16 id
		}
		u16 count of added objects
		for all added objects {
			u16 id
			u8 type
			u16 initialization data length
			string initialization data
		}
	*/
	
	TOCLIENT_ACTIVE_OBJECT_MESSAGES = 0x32,
	/*
		u16 command
		for all objects
		{
			u16 id
			u16 message length
			string message
		}
	*/

};

enum ToServerCommand
{
	TOSERVER_INIT=0x10,
	/*
		Sent first after connected.

		[0] u16 TOSERVER_INIT
		[2] u8 SER_FMT_VER_HIGHEST
		[3] u8[20] player_name
	*/

	TOSERVER_INIT2 = 0x11,
	/*
		Sent as an ACK for TOCLIENT_INIT.
		After this, the server can send data.

		[0] u16 TOSERVER_INIT2
	*/

	TOSERVER_GETBLOCK=0x20, // Not used
	TOSERVER_ADDNODE = 0x21, // Not used
	TOSERVER_REMOVENODE = 0x22, // deprecated

	TOSERVER_PLAYERPOS = 0x23,
	/*
		[0] u16 command
		[2] v3s32 position*100
		[2+12] v3s32 speed*100
		[2+12+12] s32 pitch*100
		[2+12+12+4] s32 yaw*100
	*/

	TOSERVER_GOTBLOCKS = 0x24,
	/*
		[0] u16 command
		[2] u8 count
		[3] v3s16 pos_0
		[3+6] v3s16 pos_1
		...
	*/

	TOSERVER_DELETEDBLOCKS = 0x25,
	/*
		[0] u16 command
		[2] u8 count
		[3] v3s16 pos_0
		[3+6] v3s16 pos_1
		...
	*/

	TOSERVER_ADDNODE_FROM_INVENTORY = 0x26, // deprecated
	/*
		[0] u16 command
		[2] v3s16 pos
		[8] u16 i
	*/

	TOSERVER_CLICK_OBJECT = 0x27,
	/*
		length: 13
		[0] u16 command
		[2] u8 button (0=left, 1=right)
		[3] v3s16 blockpos
		[9] s16 id
		[11] u16 item
	*/

	TOSERVER_GROUND_ACTION = 0x28,
	/*
		length: 17
		[0] u16 command
		[2] u8 action
		[3] v3s16 nodepos_undersurface
		[9] v3s16 nodepos_abovesurface
		[15] u16 item
		actions:
		0: start digging (from undersurface)
		1: place block (to abovesurface)
		2: stop digging (all parameters ignored)
		3: digging completed
	*/
	
	TOSERVER_RELEASE = 0x29, // Not used

	TOSERVER_SIGNTEXT = 0x30,
	/*
		u16 command