Ark v0.8.3

Ark v0.8.3

Ark is an archetype-based Entity Component System (ECS) for Go.

Changelog

Performance

• Caches archetype index, speeding up entity creation by 20-50% (#509)

Ark v0.8.2

Ark v0.8.2

Ark is an archetype-based Entity Component System (ECS) for Go.

Changelog

Documentation

• Adds table-based query iteration to the user guide cheat sheet (#505)
• Adds cross-references between methods for table-based query iteration(#506)

Ark v0.8.1

Ark v0.8.1

Ark is an archetype-based Entity Component System (ECS) for Go.

Changelog

Performance

• Events for batch operations are processed in batches (#503)

Bugfixes

• Fixes error when deleting multiple targets of the same entity (#500)
• Fixes missing relation events on archetype cleanup (deleted target entities) (#501)
• Fixes relation batch events fired for wrong table (#502)

Ark v0.8.0

Ark v0.8.0

Ark is an archetype-based Entity Component System (ECS) for Go.

Changelog

Features

• Adds table-based query iteration, which is about 2x faster (#482)

Example:

for query.NextTable() {
    positions, velocities := query.GetColumns()
    for i := range positions {
        pos, vel := &positions[i], &velocities[i]
        pos.X += vel.X
        pos.Y += vel.Y
    }
}

Performance

• Speeds up zeroing component memory by using memclrNoHeapPointers and typedmemclr (#482)
• Speeds up moving non-trivial components by 30% using typedmemmove instead of reflection (#484, #496)

Documentation

• Adds a plot with benchmarks vs. Array of Structs (AoS) to the user guide (#491)

Other

• Uses reflect slices instead of arrays for component columns (#475)
• Adds regression benchmarks, comparing PRs against the main branch (#476, #477, #478)

Ark v0.7.1

Ark v0.7.1

Ark is an archetype-based Entity Component System (ECS) for Go.

Changelog

Bugfixes

• Fixes non-nil component retrieved from mapper (#472, fixes #470, rolls back #430)

Other

• Closed/finished queries don't panic when closed again (#469)

Ark v0.7.0

Ark v0.7.0

Ark is an archetype-based Entity Component System (ECS) for Go.

Changelog

Breaking changes

• World constructor NewWorld returns a pointer instead of a value (#448)

Features

• Provides binary serialization and de-serialization of entities for networking (#453)

Performance

• Optimizes removal of relation target entities from archetypes (#461)

Bugfixes

• Fixes resetting relation target tracking on entity creation (#459)
• Fixes resetting relations in archetype cleanup (#460)
• Fixes missing OnAddRelations event on CopyEntity (#463)

Migration guide

For migration from pre-v0.7.0 versions, simply remove the pointer operator & in function calls that take a *World as argument. When a World is stored in an explicitly typed variable or struct field, use *ecs.World instead of ecs.World for the type.

Ark v0.6.4

Ark v0.6.4

Ark is an archetype-based Entity Component System (ECS) for Go.

Changelog

Bugfixes

• Prevents emitting custom events with components for the zero entity (#444)

Ark v0.6.3

Ark v0.6.3

Ark is an archetype-based Entity Component System (ECS) for Go.

Changelog

Other

• Merges observerManagerData back into observerManager (#438)

Ark v0.6.2

Ark v0.6.2

Ark is an archetype-based Entity Component System (ECS) for Go.

Changelog

Performance

• Stores column layouts separately, speeding up MapX.Get by ≈15% (#430)
• Splits out hot archetype data, stores less frequently used data separately (#433)
• Optimizes emitting events if no observers for the event type are registered (#435)

Ark v0.6.1

Ark v0.6.1

Ark is an archetype-based Entity Component System (ECS) for Go.

Changelog

Performance

• Undo slice pooling in query creation (#405) to avoid weird query performance degradation (#422)
• Reduce memory size of the central storage by allocating slice pool and observer manager on the heap (#425)
• Pre-fetch column pointers to speed up queries by 20-30% (#426)