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Per-component versioning and change tracking for ECS

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Introduce per-component versioning in chunks and world for efficient change detection.
- Add version arrays to chunks and global version to world.
- Update queries and ForEach to mark written components as changed.
- Extend QueryBuilder with WithAllRW/WithPresentRW for write access.
- Expose change tracking API in ChunkView.
- Improve thread safety and debug code.
- Update tests and examples to demonstrate new features.
This commit is contained in:
Misaki
2025-12-10 19:01:25 +09:00
parent 21e85e0c02
commit 856fa4f07d
11 changed files with 968 additions and 93 deletions
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40
Ghost.Entities.Test/EntityTest.cs
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@@ -39,7 +39,7 @@ public partial class EntityTest : ITest
var entity2 = _world.EntityManager.CreateEntity(ComponentTypeID<Transform>.value);
_world.EntityManager.SetComponent(entity2, new Transform { position = new float3(1, 2, 3) });
var queryID = new QueryBuilder().WithAll<Transform>().Build(_world);
var queryID = new QueryBuilder().WithAllRW<Transform>().WithAbsent<Mesh>().Build(_world);
ref var query = ref _world.GetEntityQueryReference(queryID);
// var testJob = new TestEntityQueryJob();
@@ -49,28 +49,32 @@ public partial class EntityTest : ITest
_world.EntityManager.AddScriptComponent<TestScriptComponent>(entity1);
_world.EntityManager.RemoveComponent<ManagedEntityRef>(entity1); // This should destory the managed entity and call OnDestroy
_world.AdvanceVersion();
query.ForEach<Transform>((e, ref t) =>
{
Console.WriteLine($"Entity {e} Has Position: {t.position}");
});
// foreach (var (entity, transform) in query.GetEntityComponentIterator<Transform>())
// {
// Console.WriteLine($"Entity {entity} Updated Position: {transform.Get().position}");
// }
//
// foreach (var chunk in query.GetChunkIterator())
// {
// var transforms = chunk.GetComponentData<Transform>();
// var entities = chunk.GetEntities();
// var bits = chunk.GetEnableBits<Transform>();
//
// var it = bits.GetIterator();
// while (it.Next(out var index) && index < chunk.Count)
// {
// Console.WriteLine($"Entity {entities[index]} Updated Position: {transforms[index].position}");
// }
// }
//foreach (var (entity, transform) in query.GetEntityComponentIterator<Transform>())
//{
// Console.WriteLine($"Entity {entity} Updated Position: {transform.Get().position}");
//}
foreach (var chunk in query.GetChunkIterator())
{
var transforms = chunk.GetComponentData<Transform>();
var entities = chunk.GetEntities();
var bits = chunk.GetEnableBits<Transform>();
var changed = chunk.HasChanged<Transform>(0);
var it = bits.GetIterator();
while (it.Next(out var index) && index < chunk.Count)
{
Console.WriteLine($"Entity {entities[index]} Updated Position: {transforms[index].position}");
}
}
_world.EntityManager.DestroyEntity(entity1);
_world.EntityManager.DestroyEntity(entity2);