Arche v0.4.1

Bugfixes

• Fix units symbol for bytes from b to B in string formatting of world statistics (#111)

Other

• Adds github.com/wfranczyk/ento to benchmarks (#110)

Arche v0.4.0

API revision, split out generics and filters into separate packages.

Features

• Generic queries support optional, additional and excluded components (#53, #56, #58, #59, #60, #63)
• Logic filters for complex queries (#54, #58, #61)
• Query and World have a method Mask(Entity) to access archetype masks (#65)
• Generic query Get method returns all queried components (#83)
• Added method World.Stats() for inspecting otherwise inaccessible world statistics (#67)
• Entities can be initialized with components, via ID as well as using generics (#76)
• A listener function can be registered to the world, for notification on entity changes (#77)
• Support for up to 128 distinct component types per world (was limited to 64 before) (#78)
• Generic entity manipulation through types Map1, Map2, ... and Exchange (#79, #84, #87)

Other

• Overhaul of the module structure, with generics and filters in separate packages (#55, #57, #61, #64)
• Generic queries are compiled to masks and cached on first build (#62)
• Boilerplate code for generic filters and queries is auto-generated with go generate (#64)
• Ensure 100% test coverage by adding a CI check for it (#68)
• World.RemEntity(Entity) is now World.RemoveEntity(Entity) (#87)
• Optimization of adding/removing components, with 2-3x speedup and vast reduction of (number of) allocations (#93)
• More examples as user documentation (#83, #95)
• Speed up component world access by use of nil pointer check instead of bitmask (#96)
• General API cleanup with renaming of several types and methods (#100)

Arche v0.3.1

Other

• Fix failing https://pkg.go.dev to fetch Arche version v0.3.0

Arche v0.3.0

⛑️ Type-safe Queries etc. via generic functions and types ⛑️

Features

• Added a layer of generic access as alternative for using component IDs, for type safety and ergonomics (#47, #48)
  • Generic queries like Query1[T], Query2[T, U], ... (#47)
  • Generic add, assign and remove (Add[T](), Add2[T, U](), ...) (#47)
  • Generic get, has, and set through component mapper Map[T] (#47)

Other

• Use of an archetype graph to speed up finding the target archetype for component addition/removal (#42)
• Reduced dependencies by moving profiling and benchmarking to sub-modules (#46)
• Smaller integer type for component identifiers (#47)
• Minor optimization of component access by queries (#50)

Arche v0.2.0

Changes compared to v0.1.4:

Features

• World has method Exchange to add and remove components in one go (#38)
• World has method Assign add and assign components in one go (#38)
• World has method AssignN add and assign multiple components in one go (#38)

Other

• Optimization of Query iteration, avoids allocations and makes it approx. 30% faster (#35)
• Removed method Query.Count(), as it was a by-product of the allocations in the above point (#35)
• Archetypes are stored in a paged collection to use more efficient access by pointers (#36)
• Much smaller archetype data structure at the cost of one more index lookup (#37)

Arche v0.1.4

Other

• Extended and improved documentation (#34)

Arche v0.1.3

Features

• Add Config to allow for configuration of the world (currently only storage capacity increment) (#28)
• Query has a method Count(), reporting the total number of matching entities (#30)

Arche v0.1.2

Other

• Use aligned item size in component storage for faster query iteration (#25)
• Queries lock the World, and automatically unlock it after iteration (#26)

Arche v0.1.1

Other

• Avoid allocation in World.Has(entity, compID) (#16)
• World.RemEntity(entity) panics on dead entity, like all other World methods (#18)
• Reserve zero value Entity to serve as nil/undefined value (#23)

Arche v0.1.0

Initial release.

Basic ECS implementation.