public OnPlayerText(playerid, text[])
{
	new username[256];
	new filename[256];

	GetPlayerName(playerid, username, sizeof(username));
	format(filename, sizeof(filename), "%s.txt", username);

	if(fexist(filename) == 1 && loggedin[playerid] == 0)
	{
		SendClientMessage(playerid, 0xB00000FF, "You have to login. This nickname is registered.");
		return 1;
	}

	return 1;
}