public class ExampleQuestion extends ChatGameGenerator {
    // You need to extend ChatGameGenerator (the generator automatically registers itself, so only create one instance)
    private static final String ALPHABET = "abcdefghijklmnopqrstuvwxyz" ;
    // Required in later versions
    public ExampleQuestion (Plugin plugin ) {
        super (plugin ) ;
    }
    // #getNewQuestion() is called every time this generator gets to ask a question
    @Override
    public Question getNewQuestion ( ) {
        // You return a new Question object containing the question and the answer a player has to type (and if that answer is case sensitive)
        // In this example you have to answer what character is at the given position in the alphabet
        int index = new Random ( ). nextInt (ALPHABET. length ( ) ) ;
        return new Question ( ) {
            @Override
            public String getAnswer ( ) {
                return Character. toString (ALPHABET. charAt (index ) ) ;
            }
            @Override
            public boolean isCaseSensitive ( ) {
                return false ;
            }
            @Override
            public String getQuestion ( ) {
                String message = "what's the %index% letter in the alphabet" ;
                return message. replace ( "%index%", (index + 1 ) + (index < 3 ? (index == 0 ? "st" : (index == 1 ? "nd" : "rd" ) ) : "th" ) ) ;
            }
            @Override
            public String getMessage ( ) {
                return "&7Answer &e%question% &7to get rewards!" ;
            }
        } ;
    }
    // A generator needs a #getIdentifier() method as of update 6.0
    @Override
    public String getName ( ) {
        return "Alphabet" ;
    }
}

// Note that this event is asynchronous as of update 4.0 because it's called by an AsyncPlayerChatEvent listener
@EventHandler
public void onWin (AsyncChatGameWinEvent event ) {
    Player winner = event. getPlayer ( ) ;
    winner. getInventory ( ). addItem ( new ItemStack (Material. DIAMOND ) ) ;
    event. setWinMessage ( "&aCongratulations! You won a diamond" ) ;
}

// The script has to return a JSON object with the required members
// Put this script in the ChatGames\scripts directory
function getQuestion() {
    return {
        answer: "true",
        caseSensitive: false,
        question: "this is a lie",
        message: "&7Is '&e%question%&7' a paradox?"
    };
}
getQuestion();