[SchlumPF*]

EngFunc_Message_Beginuses floats, message_begin() doesnt.
if you explain such a function you should add an example when to use EngFunc_Message_Beginand when to use message_begin() because imo is EngFunc_Message_Beginkinda unnecesarry :X
also, you should explain MSG_INIT, PVS and PAS (with a short example ofc). at least because i never was able to find that out xD i mean MSG_ONE and MSG_ALL (+ the unreliable ones of them) are quite common but i guess there are a lot who never used MSG_INIT, MSG_PVS and MSG_PAS.
another thing is the origin, are there a few messages where you need it? i mean most messages need write_coord() to set the origin ^^