class

Entitas::Group(TEntity)

Constructors

add_entity(entity : Entity, index : Int32, component : Component)

add_entity_silently(entity : TEntity) : TEntity | Bool

get_entities(buff : Enumerable(IEntity))

get_single_entity

Returns the only entity in this group. It will return null if the group is empty. It will throw an exception if the group has more than one entity.

handle_entity(entity : IEntity, index : Int32, component : Entitas::IComponent)

This is used by the context to manage the group.

handle_entity(entity : IEntity) : Entitas::Events::GroupChanged

handle_entity_silently(entity : IEntity)

This is used by the context to manage the group.

remove_all_event_handlers

Removes all event handlers from this group. Keep in mind that this will break reactive systems and entity indices which rely on this group.

Removes: OnEntityRemoved, OnEntityAdded, and OnEntityUpdated

remove_entity(entity : Entity, index : Int32, component : Component) : Entity | Nil

remove_entity_silently(entity : Entity) : Entity | Nil

to_json(json)

to_s(io)

update_entity(entity : IEntity, index : Int32, prev_component : Entitas::IComponent | Nil, new_component : Entitas::IComponent | Nil)

This is used by the context to manage the group.