Quadrilha_PlayerAllowed(playerid)
{
    // Make sure that the leader is a trucker
    if(APlayerData[playerid][PlayerClass] == ClassMafia)
    {
        // Check if the player isn't a member of a quadrilha already
        if (APlayerData[playerid][InQuadrilha] == false)
        {
            // Make sure that the player hasn't started a job
            if (APlayerData[playerid][JobStarted] == false)
                return true; // The player is allowed to create or join a quadrilha
            else
                SendClientMessage(playerid, 0xFFFFFFFF, TXT_CannotJoinJobStarted);
        }
        else
            SendClientMessage(playerid, 0xFFFFFFFF, TXT_QuadrilhaAllreadyJoined); // Linha 626
    }
    else
        SendClientMessage(playerid, 0xFFFFFFFF, TXT_QuadrilhaNeedsTruckerClass); // Linha 629

    // If any condition wasn't true, the player isn't allowed to create or join a quadrilha
    return false;
}