Crate amethyst_derive

This crate implements various derive macros for easing the use of various amethyst features. At the moment, this consists of event readers, prefab and UI widget derives.

Derive Macros

• EventReader
  EventReader
• PrefabData
  Deriving a Prefab requires that amethyst::ecs::Entity, amethyst:assets::{PrefabData, ProgressCounter} and amethyst::error::Error are imported and visible in the current scope. This is due to how Rust macros work.
• SystemDesc
  Derive a SystemDesc implementation.
• WidgetId
  This allows the use of an enum as an ID for the Widgets resource. One variant has to be marked as the default variant with #[widget_id_default] and will be used when a Widgetis added to the resource without an explicit ID. Note that when usingWidgets::add`, this will overwrite an existing widget with the same default id!