A YES/NO topic. These handle YES and/or NO, which are normally used as responses to questions posed by the NPC. YesNoTopic is the base class, and can be used to create a single response for both YES and NO; YesTopic provides a response just for YES; and NoTopic provides a response just for NO. The only thing an instance of these classes should normally need to specify is the response text (or a list of response strings, by multiply inheriting from an EventList subclass as usual).

class YesNoTopic :   MiscTopic