[Tutorial] Usermessages : list, ussage, bitbuffer structure
 

To make things more simple to understand, I can say usermessages are something like events
There are different user message for every game (I mean CS:S for example don't have the same user message like TF2)

○ Here is list of usermessages in CS:S
○ Natives that may you need are found in usermessage.inc

○ How to create create (reproduce) an usermessage and send it to client
Before all you need the usermessage structure. There are bunch of bits wich may not so easy to find (We'll talk about that later)
Now i'll show how to send a message to all clients. If you want to set only to a client use StartMessageOne() native (at least check usermessages.inc)

PHP Code:

---

// start message
new Handle:hBf = StartMessageAll("Message Name");

if(hBf != INVALID_HANDLE)
{
    structure...
    EndMessage();
    
} 


---

Let's say if this message have 4 arg's (I know it's not real args but whatever) and first 3 are byte time last last is char.
Code would be:
It's verry important to respect the order on sending bitbuffer bytes
You can find all bitbuffer natives in bitbuffer.inc file


○ How to hook user messages
Well that's not so hard, but again problem is with structure of usermessage
First I want to say you can't print anything in callback of hooked message (I mean you can't use PrintToChat, PrintToChatAll etc)

Now, example:

PHP Code:

---

public OnPluginStart()
{
    HookUserMessage(GetUserMessageId("ResetHUD"),fn_HookResetHUD,true);
}

public Action:fn_HookResetHUD(UserMsg:msg_id, Handle:bf, const players[], playersNum, bool:reliable, bool:init) 
{
    // stuff whatever
} 


---

I choosed "ResetHUD", of course you'll use what you need
Now the most difficult part is structure of message. You can read all bits with BfRead*() natives (bitbuffer.inc)
Let's say if structure is byte,byte,float,byte and you need to check if last is 40:

PHP Code:

---

public Action:fn_HookMyMessage(UserMsg:msg_id, Handle:bf, const players[], playersNum, bool:reliable, bool:init) 
{
    BfReadByte(bf);
    BfReadByte(bf);
    BfReadFloat(bf);
    new my_search = BfReadByte(bf);
    if(my_search == 40)
    {
        // do stuff
    }
} 


---

I can say this message have some kind of 4 arg's. To reach the 4nd you have to read the previous ones

I can say that's all. You can ask here all you want to know about each usermessages (when they are called, structure ) ; I'll do a handjob to find what you need ;)

Re: [Tutorial] Usermessages : list, ussage, bitbuffer structure
 

Would you post an example for BarTime please? I can't get it to work. Thanks

Re: [Tutorial] Usermessages : list, ussage, bitbuffer structure
 

To be more specific, you can't use other usermessages in hooks (PrintToChat is a wrapper for TextMsg usermsg), but PrintToServer and possibly PrintToConsole should work just fine. Use the MsgSentNotify callback (4th param in HookUserMessage) if you need to send usermessages.

Also, you could've mentioned the use of the bool:intercept param in HookUserMessage. Nice tut otherwise. :up:

This should be it but donnu if it works.

Re: [Tutorial] Usermessages : list, ussage, bitbuffer structure
 

It doesn't work. Thx anyway

Re: [Tutorial] Usermessages : list, ussage, bitbuffer structure
 

BarTime Draws a HUD progress bar which is filled from 0% to 100% for the time.
try this

Re: [Tutorial] Usermessages : list, ussage, bitbuffer structure
 

Just to make note, BarTime doesn't work in TF2.

Should this work? I grabbed this usermessage from the tf2 list and tried to use it, but it never got called.

Re: [Tutorial] Usermessages : list, ussage, bitbuffer structure
 

Still doesn't work. Also tried with WriteFloat.

Re: [Tutorial] Usermessages : list, ussage, bitbuffer structure
 

It seems even CSS never fires that usermessage. You can do the progress bar with these 2 netprops though

Set starttime to GetGameTime() and duration to number of seconds you want it to last. Apparently you gotta reset the value of m_iProgressBarDuration to 0 manually when the time has ran out.

Re: [Tutorial] Usermessages : list, ussage, bitbuffer structure
 

Thank you all! +karma :)

This works!

Re: [Tutorial] Usermessages : list, ussage, bitbuffer structure
 

Anybody willing to take some screenshots of what these look like?

Thanks!