Half-Life 1 Engine Messages

//SVC_BAD                 0
SVC_NOP                   1
SVC_DISCONNECT            2
SVC_EVENT                 3
SVC_VERSION               4
SVC_SETVIEW               5
SVC_SOUND                 6
SVC_TIME                  7
SVC_PRINT                 8
SVC_STUFFTEXT             9
SVC_SETANGLE              10
SVC_SERVERINFO            11
SVC_LIGHTSTYLE            12
SVC_UPDATEUSERINFO        13
SVC_DELTADESCRIPTION      14
SVC_CLIENTDATA            15
SVC_STOPSOUND             16
SVC_PINGS                 17
SVC_PARTICLE              18
SVC_DAMAGE                19
SVC_SPAWNSTATIC           20
SVC_EVENT_RELIABLE        21
SVC_SPAWNBASELINE         22
SVC_TEMPENTITY            23
SVC_SETPAUSE              24
SVC_SIGNONNUM             25
SVC_CENTERPRINT           26
SVC_KILLEDMONSTER         27
SVC_FOUNDSECRET           28
SVC_SPAWNSTATICSOUND      29
SVC_INTERMISSION          30
SVC_FINALE                31
SVC_CDTRACK               32
SVC_RESTORE               33
SVC_CUTSCENE              34
SVC_WEAPONANIM            35
SVC_DECALNAME             36
SVC_ROOMTYPE              37
SVC_ADDANGLE              38
SVC_NEWUSERMSG            39
SVC_PACKETENTITIES        40
SVC_DELTAPACKETENTITIES   41
SVC_CHOKE                 42
SVC_RESOURCELIST          43
SVC_NEWMOVEVARS           44
SVC_RESOURCEREQUEST       45
SVC_CUSTOMIZATION         46
SVC_CROSSHAIRANGLE        47
SVC_SOUNDFADE             48
SVC_FILETXFERFAILED       49
SVC_HLTV                  50
SVC_DIRECTOR              51
SVC_VOICEINIT             52
SVC_VOICEDATA             53
SVC_SENDEXTRAINFO         54
SVC_TIMESCALE             55
SVC_RESOURCELOCATION      56
SVC_SENDCVARVALUE         57
SVC_SENDCVARVALUE2        58

SVC_CUTSCENE

Shows the intermission camera view, and writes-out text passed in first parameter.

Note: Intermission mode 3.
Note: This text will keep showing on clients in future intermissions.

Name:	SVC_CUTSCENE
Structure:	string Text

SVC_DAMAGE

Note: Deprecated.

Name:	SVC_DAMAGE
Structure:

SVC_INTERMISSION

Shows the intermission camera view

Note: Intermission mode 1.

Name:	SVC_INTERMISSION
Structure:

SVC_FINALE

Shows the intermission camera view, and writes-out text passed in first parameter.

Note: Intermission mode 2.
Note: This text will keep showing on clients in future intermissions.

Name:	SVC_FINALE
Structure:	string Text

SVC_KILLEDMONSTER

Note: Deprecated.

Name:	SVC_KILLEDMONSTER
Structure:

SVC_FOUNDSECRET

Note: Deprecated.

Name:	SVC_FOUNDSECRET
Structure:

SVC_HLTV

Tells client about current spectator mode.

As found in hltv.h:

#define HLTV_ACTIVE	0	// tells client that he's an spectator and will get director commands
#define HLTV_STATUS	1	// send status infos about proxy 
#define HLTV_LISTEN	2	// tell client to listen to a multicast stream

Name:	SVC_HLTV
Structure:	byte Mode

SVC_PINGS

Contains ping, loss for several players.

Note: Flag is 1 - rest data contains PlayerID, Ping and Loss at least for 1 player.
Note: Flag is 0 - end of the message, skip remaining bits.
Note: ... - Flag + PlayerID + Ping + Loss - N times.

Name:	SVC_PINGS
Structure:	1 bit Flag 1 5 bits PlayerID 12 bits Ping 7 bits Loss ... ... 1 bit Flag 0 n bits Align to byte with zero bits

SVC_RESOURCELOCATION

This message sends sv_downloadurl to client.

Name:	SVC_RESOURCELOCATION
Structure:	string sv_downloadurl

SVC_ROOMTYPE

Set client room_type cvar to provided value.

Name:	SVC_ROOMTYPE
Structure:	short Value