Package gui provides a text/graphical rendering system for tile-based games.

Package history provides a seekable sequence of rpg.State.

ContainerFactory is a ComponentFactory.

LocationFactory is a ComponentFactory.

NewState initializes an empty State.

RegisterComponent allows a ComponentFactory to be used with State.Create.

ContainerType can be used with Object.Component to retrieve a Container.

LocationType can be used with Object.Component to retrieve a Location.

Container is a Component that holds references to other Objects.

Location represents the position of an Object.

Object represents a person, place, or thing in a State.

State represents a set of Object that can be modified concurrently using compare-and-set.

Component represents a feature of an Object.

ComponentFactory constructs a Component for use with the given Object.

ObjectIndex is the ID of an Object in a State.