Module specs::world

Entities, resources, components, and general world management.

Structs

CreateIter	An iterator for entity creation. Please note that you have to consume it because iterators are lazy.
CreateIterAtomic	An iterator for entity creation. Please note that you have to consume it because iterators are lazy.
EntitiesRes	The entities of this ECS. This is a resource, stored in the World. If you just want to access it in your system, you can also use the Entities type def.
Entity	Entity type, as seen by the user.
EntityBuilder	The entity builder, allowing to build an entity together with its components.
EntityResBuilder	An entity builder from EntitiesRes. Allows building an entity with its components if you have mutable access to the component storages.
Generation	Index generation. When a new entity is placed at an old index, it bumps the Generation by 1. This allows to avoid using components from the entities that were deleted.
LazyBuilder	Like EntityBuilder, but inserts the component lazily, meaning on maintain. If you need those components to exist immediately, you have to insert them into the storages yourself.
LazyUpdate	Lazy updates can be used for world updates that need to borrow a lot of resources and as such should better be done at the end. They work lazily in the sense that they are dispatched when calling world.maintain().
World	A [Resource] container, which provides methods to insert, access and manage the contained resources.

Traits

Builder	A common trait for EntityBuilder and LazyBuilder, allowing either to be used. Entity is definitely alive, but the components may or may not exist before a call to World::maintain.
Component	Abstract component type. Doesn't have to be Copy or even Clone.
WorldExt	This trait provides some extension methods to make working with shred's [World] easier.

Type Definitions

Entities	A wrapper for a read Entities resource. Note that this is just Read<Entities>, so you can easily use it in your system:
Index	An index is basically the id of an Entity.