/*
	common_protocol.h

	communications protocol (common elements)

	Copyright (C) 1996-1997  Id Software, Inc.
	Copyright (C) 1999,2000  contributors of the QuakeForge project
	Please see the file "AUTHORS" for a list of contributors

	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:

		Free Software Foundation, Inc.
		59 Temple Place - Suite 330
		Boston, MA  02111-1307, USA

	$Id$
*/

#ifndef __common_protocol_h
#define __common_protocol_h

/*
#if !(defined(QUAKEWORLD) || defined(UQUAKE))
#error This is NOT safe to include for common items.
#endif
*/


// game types sent by serverinfo
// these determine which intermission screen plays
#define	GAME_COOP			0
#define	GAME_DEATHMATCH		1


//==================
// note that there are some defs.qc that mirror to these numbers
// also related to svc_strings[] in cl_parse
//==================

//
// server to client
//
#define	svc_bad				0
#define	svc_nop				1
#define	svc_disconnect		2
#define	svc_updatestat		3	// [byte] [long]
#define	svc_version			4	// [long] server version
#define	svc_setview			5	// [short] entity number
#define	svc_sound			6	// <see code>
#define	svc_time			7	// [float] server time
#define	svc_print			8	// [string] null terminated string
#define	svc_stufftext		9	// [string] stuffed into client's console buffer
								// the string should be \n terminated
#define	svc_setangle		10	// [angle3] set the view angle to this absolute value
#define	svc_lightstyle		12	// [byte] [string]
#define	svc_updatename		13	// [byte] [string]
#define	svc_updatefrags		14	// [byte] [short]
#define	svc_clientdata		15	// <shortbits + data>
#define	svc_stopsound		16	// <see code>
#define	svc_updatecolors	17	// [byte] [byte]
#define	svc_particle		18	// [vec3] <variable>
#define	svc_damage			19

#define	svc_spawnstatic		20
//	svc_spawnbinary		21
#define	svc_spawnbaseline	22

#define	svc_temp_entity		23

#define	svc_setpause		24	// [byte] on / off
#define	svc_signonnum		25	// [byte]  used for the signon sequence

#define	svc_centerprint		26	// [string] to put in center of the screen

#define	svc_killedmonster	27
#define	svc_foundsecret		28

#define	svc_spawnstaticsound	29	// [coord3] [byte] samp [byte] vol [byte] aten

#define	svc_intermission	30		// [string] music
#define	svc_finale			31		// [string] music [string] text

#define	svc_cdtrack			32		// [byte] track [byte] looptrack
#define svc_sellscreen		33


#define svc_cutscene		34
// QUAKEWORLD
#define	svc_smallkick		34		// set client punchangle to 2
#define	svc_bigkick			35		// set client punchangle to 4

#define	svc_updateping		36		// [byte] [short]
#define	svc_updateentertime	37		// [byte] [float]

#define	svc_updatestatlong	38		// [byte] [long]

#define	svc_muzzleflash		39		// [short] entity

#define	svc_updateuserinfo	40		// [byte] slot [long] uid
									// [string] userinfo

#define	svc_download		41		// [short] size [size bytes]
#define	svc_playerinfo		42		// variable
#define	svc_nails			43		// [byte] num [48 bits] xyzpy 12 12 12 4 8
#define	svc_chokecount		44		// [byte] packets choked
#define	svc_modellist		45		// [strings]
#define	svc_soundlist		46		// [strings]
#define	svc_packetentities	47		// [...]
#define	svc_deltapacketentities	48		// [...]
#define svc_maxspeed		49		// maxspeed change, for prediction
#define svc_entgravity		50		// gravity change, for prediction
#define svc_setinfo			51		// setinfo on a client
#define svc_updatepl		53		// [byte] [byte]

//
// client to server
//
#define	clc_bad			0
#define	clc_nop 		1
#define	clc_disconnect	2
#define	clc_move		3			// [usercmd_t]
#define	clc_stringcmd	4		// [string] message
#define	clc_delta		5		// [byte] sequence number, requests delta compression of message
#define clc_tmove		6		// teleport request, spectator only
#define clc_upload		7		// teleport request, spectator only

//==============================================

// playerinfo flags from server
// playerinfo always sends: playernum, flags, origin[] and framenumber

#define	PF_MSEC			(1<<0)
#define	PF_COMMAND		(1<<1)
#define	PF_VELOCITY1	(1<<2)
#define	PF_VELOCITY2	(1<<3)
#define	PF_VELOCITY3	(1<<4)
#define	PF_MODEL		(1<<5)
#define	PF_SKINNUM		(1<<6)
#define	PF_EFFECTS		(1<<7)
#define	PF_WEAPONFRAME	(1<<8)		// only sent for view player
#define	PF_DEAD			(1<<9)		// don't block movement any more
#define	PF_GIB			(1<<10)		// offset the view height differently
#define	PF_NOGRAV		(1<<11)		// don't apply gravity for prediction

//==============================================

// if the high bit of the client to server byte is set, the low bits are
// client move cmd bits
// ms and angle2 are always sent, the others are optional
#define	CM_ANGLE1 	(1<<0)
#define	CM_ANGLE3 	(1<<1)
#define	CM_FORWARD	(1<<2)
#define	CM_SIDE		(1<<3)
#define	CM_UP		(1<<4)
#define	CM_BUTTONS	(1<<5)
#define	CM_IMPULSE	(1<<6)
#define	CM_ANGLE2 	(1<<7)

//
// temp entity events
//
#define	TE_SPIKE			0
#define	TE_SUPERSPIKE		1
#define	TE_GUNSHOT			2
#define	TE_EXPLOSION		3
#define	TE_TAREXPLOSION		4
#define	TE_LIGHTNING1		5
#define	TE_LIGHTNING2		6
#define	TE_WIZSPIKE			7
#define	TE_KNIGHTSPIKE		8
#define	TE_LIGHTNING3		9
#define	TE_LAVASPLASH		10
#define	TE_TELEPORT			11
#define TE_EXPLOSION2		12

// PGM 01/21/97
#define TE_BEAM				13
// PGM 01/21/97

// QUAKEWORLD
#define	TE_BLOOD			12
#define	TE_LIGHTNINGBLOOD	13

/*
==========================================================

  ELEMENTS COMMUNICATED ACROSS THE NET

==========================================================
*/

#define	MAX_CLIENTS		32

#define	UPDATE_BACKUP	64	// copies of entity_state_t to keep buffered
							// must be power of two
#define	UPDATE_MASK		(UPDATE_BACKUP-1)

#endif