[RyDeR`]

Example:

Put this under your command which the players use to join the mission:

pawn Код:

SetPVarInt(playerid, "missionJoined", true);

Put this where they leave the mission:

pawn Код:

SetPVarInt(playerid, "missionJoined", false);

This at the end of the script:

pawn Код:

stock TotalPlayersJoined()
{
    new
            i,
            totalPlayers
    ;
    for( ; i != MAX_PLAYERS; ++i)
    {
            if(IsPlayerConnected(i) && !IsPlayerNPC(i) && GetPVarInt(i, "missionJoined"))
            {
                    ++totalPlayers;
            }
    }
    return totalPlayers;
}

Then use it for example like this:

pawn Код:

format(string, sizeof(string), "Total players in the mission: %d", TotalPlayersJoined());