dartemis 0.8.0

An Entity System Framework for game development. Based on Artemis.

Changelog

0.8.0 (Dart 2.0+ required)

Breaking API Changes

• removed deprecated code
• replaced Entity with int, methods previously on Entity need to be called on World, with the int value of the entity as the first parameter
• removed world.processEntityChanges, it's now done by default after every system
• Aspect no longer uses static methods, uses named constructors instead (migration: replace Aspect.getAspectF with Aspect.f)
• methods in Aspect no longer return the aspect, use cascading operator to chain calls
• improved type safety for world.getManager and world.getSystem, no longer takes a Type as parameter and uses generic methods instead (e.g. world.getManager<TagManager>() instead of world.getManager(TagManager))
• removed Type parameter in constructor of Mapper, change code from Mapper<Position>(Position, world) to Mapper<Position>(world)

Enhancements

• world.destroy() for cleaning up EntitySystems and Managers

Internal

• existing entities are processed first, addition of new entities is processed last, makes more sense now that the processing is done after every system

0.7.3

Bugfixes

• adding an entity to a dirty EntityBag could lead to an inconsistency between the bitset and the list of entities

0.7.2

Bugfixes

• removing an entity multiple times caused it to be added to the entity pool multiple times

0.7.1

Internal

• upgraded dependencies

0.7.0

Breaking API Changes

• renamed Poolable to Pooled
• renamed ComponentPoolable to PooledComponent
• removed FastMath and Utils, unrelated to ECS
• removed removeAll from Bag
• time and frame getters have been moved from World to EntitySystem, World has methods instead

API Changes

• deprecated ComponentMapper use Mapper instead
• deprecated ComponentMapper#get(Entity), use Mapper[Entity] instead
• properties have been added to the World, can be accessed using the [] operator
• Systems can be assigned to a group when adding them to the World, Word.process() can be called for a specific group

Enhancements

• performance improvement when removing entities

Bugfixes

• DelayedEntityProcessingSystem keeps running until all current entities have expired

Internal

• upgraded dependencies

0.6.0

API Changes

• Bag is Iterable
• removed ReadOnlyBag, when upgrading to 0.6.0 replace every occurence of ReadOnlyBag with Iterable

0.5.2

Enhancements

• injection works for Managers
• initialize() in the Manager is no longer abstract (same as in EntitySystem)
• World.createEntity got an optional paramter to create an Entity with components
• new function World.createAndAddEntity which adds the Entity to the world after creation

Bugfixes

• added getter for the World in Manager
• the uniqueId of an Entity was always 0, not very unique

0.5.1

Internal

• added version constraint for release of Dart

0.5.0

Enhancements

• more injection, less boilerplate (when using dartemis_mirrors)
  • Instances of ComponentMapper no longer need to be created in the initialize-method of a system, they will be injected
  • Managers and EntitySystems no longer need to be requested from the World in the initialize-method of a system, they will be injected

0.4.2

Bugfixes

• EntityManager.isEnabled() no longer fails if the bag of disabled entities is smaller than the id of the checked entity

Enhancements

• added getters for current time and frame to World

0.4.1

Bugfixes

• World.deleteAllEntites() did not work if there was already a deleted entity
• writing to the Bag by index doesn't make it smaller anymore

0.4.0

API Changes

• swapped parameters of Tagmanager.register
• replaced ImmutableBag with ReadOnlyBag, added getter for ReadOnlyBag to Bag
• changed FreeComponents to ObjectPool
• old Component has changed, there are two different kinds of components now:
  • instances of classes extending ComponentPoolable will be added to the ObjectPool when they are removed from an Entity (preventing garbage collection and allowing reuse)
  • instances of classes extending Component will not be added to the ObjectPool when they are removed from an Entity (allowing garbage collection)

Enhancements

• added function deleteAllEntities to World
• IntervalEntitySystem has a getter for the delta since the systm was processed last
• updated to work with Dart M4

Bugfixes

• GroupManager.isInGroup works if entity is in no group