0.4.2

More QOL improvements and an important bug fix.

Fixes

• Fixed major problems in system unbinding (when using SystemManager.remove()) and improved performance
• Fixed possible RecursionError in Entity.__repr__()

API Updates

• New constant NULL_ID: an EntityId that is never in the EntityManager
• Added discard() method to EntityManager, Entity, and StateManager
• All built-in events are now dataclasses. Adds __eq__ and __repr__, and they are no longer hashable.
• Added __repr__() to EntityManager, SystemManager, StateManager, Binding, and QueryResult
• Added __eq__() to EntityManager, SystemManager, StateManager, and EventKeyFunctions
  • These types are no longer hashable
• Some methods of EventKeyFunctions no longer accept keyword arguments
• EventKeyFunctions.copy() returns an EventKeyFunctions instead of WeakKeyDictionary

Typing

• Typing improvements, especially by annotating return type of dunder methods
• Fixed problem when using dict() on EventKeyFunctions
• Some internal variables marked with Final
• Implementations of overloaded methods are now also typed

Internal

• Formatted all code with standard conventions
• Rewrote SystemManager._bind()

Other

• Rewrote README
• Added docstring for QueryResult.__call__()
• Added more mypy and ruff checks