Server Lock command

new bool:ShutDown; // Add this to the top of your script

// This is your command, change the RCON Admin restriction if you want to; up to you.

CMD:lockserver(playerid, params[])
{
    if(!IsPlayerAdmin(playerid))
        return SendClientMessage(playerid, -1, "Notice: You don't have access to this command.");

    new string[200];

    if(ShutDown)
    {
        ShutDown = false;
        SendRconCommand("password 0");
        SendRconCommand("hostname YourServerNameHere");
        format(string, sizeof(string), "Notice: %s unlocked the server.", ReturnName(playerid));
        SendClientMessageToAll(-1, string);
    }
    else
    {
        ShutDown = true;
        SendRconCommand("password YourPasswordHere");
        SendRconCommand("hostname YourServerNameHere [Locked]");
        format(string, sizeof(string), "Notice: %s locked the server.", ReturnName(playerid));
        SendClientMessageToAll(-1, string);
    }
    return 1;
}

// This is the stock that returns the name of a player connected to the server, with the use of their ID.
// If you already have a stock like this in your gamemode, you can do the replacements and configurations.

stock ReturnName(playerid)
{
    new name[90], character[MAX_PLAYER_NAME];
    GetPlayerName(playerid, character, sizeof(character));
    name = character;
    return name;
}