private String getAddButtonTooltips(){
		if(players.size() >= 4){
			return "There are already 4 players. Can't add more players.";
		}
		if(nameField.getText().trim().length() ==0 ){
			return "Can't add player with empty name.";
		}
		if(players.contains(new StandardPlayer(nameField.getText().trim()))){
			return "A player with that name already exists.";
		}
		return "Add the player (" +nameField.getText().trim() + ") to the game.";
	}