[toader_octavian]

PHP Code:

#define MSG_INIT 3 //Write to the init string
#define MSG_PVS 4 //Ents in PVS of origin
#define MSG_PAS 5 //Ents in PAS of origin
#define MSG_PVS_R 6 //Reliable to PVS
#define MSG_PAS_R 7 //Reliable to PAS 


What do these do?

[Arkshine]

MSG_PVS ( Potentially Visible Set ) and MSG_PAS ( Potentially Audible Set ) is use for filtering network messages to the client. ( From the eye position ).

I.e ; if you send TE_EXPLOSION with MSG_PVS, it means the message will be sent only to clients who are potentially visible from the provided origin. MSG_PAS means it will be sent only to clients who potentially hear the sound from the provided origin. So, It should be used when we can.

MSG_INIT I don't know. MSG_PVS_R and MSG_PAS_R are the reliable version ofr MSG_PVS and MSG_PAS but actually not used ( at least HLSDK doesn't mention about it ) because it should be never reliable since they change from frame to frame. So MSG_PVS and MSG_PAS are fine.

[jim_yang]

I saw a use of MSG_INIT when sending WeaponList msg

[Arkshine]

Yep, you're right. WeaponList is fired on map start with MSG_INIT and for all weapons.