ref: 3ba533fb9d5e013768813983fc0a4464f4ba13ac
dir: qk1/qw/protocol.h
// protocol.h -- communications protocols
#define PROTOCOL_VERSION 28
#define QW_CHECK_HASH 0x5157
//=========================================
#define PORT_SERVER 27500
//=========================================
// out of band message id bytes
// M = master, S = server, C = client, A = any
// the second character will allways be \n if the message isn't a single
// byte long (?? not true anymore?)
#define S2C_CHALLENGE 'c'
#define S2C_CONNECTION 'j'
#define A2A_PING 'k' // respond with an A2A_ACK
#define A2A_ACK 'l' // general acknowledgement without info
#define A2A_NACK 'm' // [+ comment] general failure
#define A2A_ECHO 'e' // for echoing
#define A2C_PRINT 'n' // print a message on client
#define S2M_HEARTBEAT 'a' // + serverinfo + userlist + fraglist
#define A2C_CLIENT_COMMAND 'B' // + command line
#define S2M_SHUTDOWN 'C'
//==================
// 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] [byte]
//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 // [byte] id [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_serverdata 11 // [long] protocol ...
#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] [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 // variable
#define svc_setpause 24 // [byte] on / off
// 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 // [vec3_t] origin [vec3_t] angle
#define svc_finale 31 // [string] text
#define svc_cdtrack 32 // [byte] track
#define svc_sellscreen 33
#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_serverinfo 52 // serverinfo
#define svc_updatepl 53 // [byte] [byte]
//==============================================
//
// client to server
//
#define clc_bad 0
#define clc_nop 1
//define clc_doublemove 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 allways 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 allways 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)
//==============================================
// the first 16 bits of a packetentities update holds 9 bits
// of entity number and 7 bits of flags
#define U_ORIGIN1 (1<<9)
#define U_ORIGIN2 (1<<10)
#define U_ORIGIN3 (1<<11)
#define U_ANGLE2 (1<<12)
#define U_FRAME (1<<13)
#define U_REMOVE (1<<14) // REMOVE this entity, don't add it
#define U_MOREBITS (1<<15)
// if MOREBITS is set, these additional flags are read in next
#define U_ANGLE1 (1<<0)
#define U_ANGLE3 (1<<1)
#define U_MODEL (1<<2)
#define U_COLORMAP (1<<3)
#define U_SKIN (1<<4)
#define U_EFFECTS (1<<5)
#define U_SOLID (1<<6) // the entity should be solid for prediction
//==============================================
// a sound with no channel is a local only sound
// the sound field has bits 0-2: channel, 3-12: entity
#define SND_VOLUME (1<<15) // a byte
#define SND_ATTENUATION (1<<14) // a byte
#define DEFAULT_SOUND_PACKET_VOLUME 255
#define DEFAULT_SOUND_PACKET_ATTENUATION 1.0
// svc_print messages have an id, so messages can be filtered
enum{
PRINT_LOW = 0, /* pickup messages */
PRINT_MEDIUM = 1, /* death messages */
PRINT_HIGH = 2, /* critical messages */
PRINT_CHAT = 3 /* char messages, also go to chat buffer */
};
//
// 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_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)
// entity_state_t is the information conveyed from the server
// in an update message
typedef struct
{
int number; // edict index
int flags; // nolerp, etc
vec3_t origin;
vec3_t angles;
int modelindex;
int frame;
int colormap;
int skinnum;
int effects;
} entity_state_t;
#define MAX_PACKET_ENTITIES 64 // doesn't count nails
typedef struct
{
int num_entities;
entity_state_t entities[MAX_PACKET_ENTITIES];
} packet_entities_t;
typedef struct usercmd_s
{
byte msec;
vec3_t angles;
short forwardmove, sidemove, upmove;
byte buttons;
byte impulse;
} usercmd_t;