1. As d7w7z said this functions takes an entity ( object player ) and an array (level.players) as arguments and returns an array. You cannot call a specific thread fon an array. You must call it for all the elements of this array.
2. Input argument key is for player ( an object ). How do you turn an object into an array? That's totally wrong.
3. This function is the exact same thing as saying: level.players iprintln("test");
4. foreach in MW2 is not a function, but a command that exits in the the GSC compiler. It is similar to foreach from C#. You cannot create a function that does the foreach job. It is like creating the if() or for() statements.

However there are ways to call a function for all players at once.

This was posted by Vader long ago!

    all_thread( function, arg, incl_host ) 

{ 

    start = 1; 

    if(IsDefined(incl_host)) 

    { 

        if(incl_host) 

        { 

            start = 0; 

        } 

    } 

    if(!IsDefined(arg)) 

    { 

        arg = 0; 

    } 

    for(i = start; i < level.players.size; i++) 

    { 

        level.players[i] thread [[function]](arg); 

    } 

}

And here is my extended version I use in the patch I'm working on...

    MultiExe(function,teams,user,arg1,arg2,arg3,arg4,arg5,inclflag)

{

if(!isDefined(inclflag)) inclflag = true;

switch(teams) {

case "All": for(i=0;i<level.players.size;i++) { if( (!inclflag) && (level.players[i] == user) ) continue; level.players[i] thread [[function]](arg1,arg2,arg3,arg4,arg5); }

break;

case "Allies": for(i=0;i<level.players.size;i++) { if( (!inclflag) && (level.players[i] == user) ) continue; if(level.players[i].team != user.team) continue; level.players[i] thread [[function]](arg1,arg2,arg3,arg4,arg5); }

break;

case "Axis": for(i=0;i<level.players.size;i++) { if( (!inclflag) && (level.players[i] == user) ) continue; if(level.players[i].team == user.team) continue; level.players[i] thread [[function]](arg1,arg2,arg3,arg4,arg5); }

break;

default: 

for(i=0;i<level.players.size;i++) level.players[i] thread [[function]](arg1,arg2,arg3,arg4,arg5);

	}

}

Example of use:

    MultiExe:killStreakNotify,"All",self,self,"AC130");

Posted by me but written for me by Karoolus :beer:

so you have an array thread a function ?
i don't think that's gonna work, is it ?

it's like trying to do this:

    level.players thread test();

cause player is filled with player[0], player[1] etc..

sorry but i don't think this is going to work..
i wrote a foreach function for COD4 before, but i never got it to work without using an extra loop..

---------- Post added at 10:55 PM ---------- Previous post was at 10:51 PM ----------

this is mine, i wrote it a while back
could use some work, but it does the job

    thread_all(team, function, option)

{

	if(!IsDefined(option))

	{

		option = "";

	}	

	if(Tolower(team) == "all")

	{

		for(i = 0; i < level.players.size; i++)

		{

			level.players[i] thread [[function]](option);

		}

	}

	else

	{

		for(i = 0; i < level.players.size; i++)

		{

			if(level.players[i].pers["team"] == ToLower(team))

			{

				level.players[i] thread [[function]](option);

			}

		}		

	}

}

thread like this:

    thread_all(game["attackers"], ::doSeekers);

no need for self thread, just put it like this, works for me

Well you're better off just using the for statement, it's just a little more work than the foreach statement, not point in trying to recreate it really.

Thanks for sharing though

What does "ToLower" do?
I've seen it in the gsc's a load of times but never knew what it's for :dumb:

Turns text into lowercase e.g. "VADER" --> "vader"

Oh, ok. Seems a bit pointless though. Why couldn't they just write "vader" to start with :confused:

Well it's a useful function for clantag editors

But clantag editors are pointless... so go figure