JIP code execution (6thSense.eu)

[Gameadd1cted 10]

Hi guys.

I am trying to understand locality.

The following init.sqf is based on the Multiplayer guide from 6thSense (http://community.bistudio.com/wiki/6thSense.eu)

When I play a SP mission, it correctly displays "Single player mission".

When I play a MP, it correctly displays "Multiplayer".

Nevertheless, when I join the same game, it does not display "JIP Machine"

Seems to easy and I don't get it :mad:

What am I doing wrong?

hint "Start";

sleep 1;

/*
 Script by Sickboy (sb _at_ 6thSense.eu)
 Version: v0.1
*/
T_INIT = false;
T_Server = false; T_Client = false; T_JIP = false;

if (playersNumber east + playersNumber west + playersNumber resistance + playersNumber civilian > 0) then { T_MP = true } else { T_MP = false };

if (isServer) then
{
 T_Server = true;
 if (!(isNull player)) then { T_Client = true };
 T_INIT = true;
} else {
 T_Client = true;
 if (isNull player) then
 {
     T_JIP = true;
     [] spawn { waitUntil { !(isNull player) }; T_INIT = true };
 } else {
     T_INIT = true;
 };
};


// Comprobaciones SP/MP/JIP

if (!T_MP) then
{
hint "Single player mission";
};

if (T_MP) then
{
hint "Multiplayer";
};

if (T_JIP) then
{
hint "JIP Machine";
};

[loyalguard 15]

SickBoy's example code in that article is excellent and still relevant but it is a little dated in that we have a few new commands that can help us determine multiplayer, server type, and JIP. The new command are:

isMultiplayer

isDedicated

We can uae these commands to simplify the JIP test:

if (isMultiplayer) then
{
   if ((!isDedicated) and (isNull player)) then
   {
        hint " I am JIP!";
   }
   else
   {
       hint "No JIP here!";
   };

[Gameadd1cted 10]

First of all, thanks for the quick answer. Tested as soon as the answer arrived.

Definitely it's me doing something wrong or not understanding the JIP.

1. I created a dedicated server on PC1. Server is started.

2. I join the game from PC2. Login as admin.

The game starts. "No JIP here!" is displayed. Perfect.

3. 30 seconds later I join the same game from the laptop (PC3).

"No JIP here!" is displayed again. :eek:

Edit: I tried joining 10 minutes later. Still "No JIP" message.

At this stage, I am lost.:confused:

Wasn't supposed to display " I am JIP!" on the laptop?

Edited November 13, 2011 by Gameadd1cted
additional information.

[.kju 3245]

The mission stops when there are no more players.

Unless it is persistent - ref: http://community.bistudio.com/wiki/ArmA:_Multiplayer#Persistent_multiplayer_battlefields

[Gameadd1cted 10]

PvPscene,

I have 1 server and 2 computers acting like clients (a total of 3 different computers).

I see no JIP message on the second client even though I join later (the first client is still on)

I even tried accessing the server from a different network (via mobile internet). Still no JIP.

[.kju 3245]

post your full mission

[Gameadd1cted 10]

Hi PVP,

The mission can be downloaded here:

http://www.megaupload.com/?d=A59FNU1N

As a quick description, there is a chopper that can be commanded via radio to do an insertion and extraction.

Bellow there is an image showing the scripted chopper in the center.

111114 Entrenamiento by Militar2k, on Flickr

Edited November 14, 2011 by Gameadd1cted
wrong link format

[.kju 3245]

remove the sleep 1; before the code...

[Gameadd1cted 10]

PvPscene,

It works Thanks a lot :)

Now, why does it happen so? This is my guess:

player returns null on a server.

However, player can be null for a short period of time on a client machine (until it synchronizes?)

So, if the machine is a CLIENT and player isNull => JIP

The sleep in the init code resulted in player not being Null.

Therefore the code would never catch a JIP state.

Is this correct?

[.kju 3245]

for a JIP the system var player is not immediately available

if you sleep, it will of course

[Gameadd1cted 10]

Is it dependent on the duration of the sleep command?

E.g. does it make any difference if we use sleep 0.1 or sleep 10?

[maddogx 13]

So on a JIP client, player is null immediately after execution of the init.sqf, but is no longer null a second later? Is this behaviour absolutely reliable?

[sickboy 13]

It should be mostly reliable and one of the few ways how to detect on the local machine if you're a JIP player.

The player object should never be null in case of non JIP.