Crate layer_system 

A simple, flexible layer system for managing UI states, game modes, and event handling.

Layers process events top-to-bottom for update and bottom-to-top for passive_update.

Key features:

• Easy stacking/replacing/removing of layers via Change.
• Generic over state S and events E.
• Efficient for small stacks.

Structs

Change

The action, that will be done after handling an event by a layer.

LayerManager

The layer manager deals with the layers you create.

Enums

ChangeAction

A special action for the layer.

Traits

Layer

A trait, every layer has to implement, in order to be used by the layer manager;