Misaki/GhostEngine
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Updated entity query

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Misaki
2025-12-04 20:37:52 +09:00
parent 93bc8e55a3
commit f9db047a5f
6 changed files with 378 additions and 36 deletions
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47
Ghost.Entities/Archetype.cs
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@@ -6,7 +6,7 @@ using System.Runtime.CompilerServices;
namespace Ghost.Entities;
internal unsafe struct Chuck : IDisposable
internal unsafe struct Chunk : IDisposable
{
public const int CHUNK_SIZE = 16384; // 16 KB
@@ -22,7 +22,7 @@ internal unsafe struct Chuck : IDisposable
public int Capacity => _capacity;
public Chuck(int size, int capacity)
public Chunk(int size, int capacity)
{
_data = new UnsafeArray<byte>(size, Allocator.Persistent);
_capacity = capacity;
@@ -59,11 +59,11 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
private readonly Identifier<Archetype> _id;
private readonly Identifier<World> _worldID;
private UnsafeBitSet _signature;
private UnsafeList<Chuck> _chunks;
private UnsafeArray<ComponentMemoryLayout> _layouts;
private UnsafeArray<int> _componentIDToOffset;
internal UnsafeBitSet _signature;
internal UnsafeList<Chunk> _chunks;
internal UnsafeArray<ComponentMemoryLayout> _layouts;
private UnsafeArray<int> _componentIDToOffset;
// TODO: Is hash map better?
private UnsafeList<Edge> _edgesAdd;
private UnsafeList<Edge> _edgesRemove;
@@ -75,10 +75,6 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
public Identifier<Archetype> ID => _id;
public UnsafeBitSet Signature => _signature;
public UnsafeList<Chuck> Chunks => _chunks;
public UnsafeArray<ComponentMemoryLayout> Layouts => _layouts;
public int EntityCapacity => _entityCapacity;
public int ChunkCount => _chunks.Count;
@@ -90,14 +86,14 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
if (componentIds.IsEmpty)
{
_signature = new UnsafeBitSet(1, Allocator.Persistent, AllocationOption.Clear);
_chunks = new UnsafeList<Chuck>(4, Allocator.Persistent);
_chunks = new UnsafeList<Chunk>(4, Allocator.Persistent);
_edgesAdd = new UnsafeList<Edge>(4, Allocator.Persistent);
_edgesRemove = new UnsafeList<Edge>(4, Allocator.Persistent);
_signature.ClearAll();
_entityCapacity = Chuck.CHUNK_SIZE / sizeof(Entity);
_entityCapacity = Chunk.CHUNK_SIZE / sizeof(Entity);
return;
}
@@ -112,7 +108,7 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
}
_signature = new UnsafeBitSet(highestComponentID + 1, Allocator.Persistent, AllocationOption.Clear);
_chunks = new UnsafeList<Chuck>(4, Allocator.Persistent);
_chunks = new UnsafeList<Chunk>(4, Allocator.Persistent);
_edgesAdd = new UnsafeList<Edge>(4, Allocator.Persistent);
_edgesRemove = new UnsafeList<Edge>(4, Allocator.Persistent);
@@ -148,7 +144,7 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
}
_maxComponentID = maxComponentID;
_entityCapacity = Chuck.CHUNK_SIZE / bytesPerEntity;
_entityCapacity = Chunk.CHUNK_SIZE / bytesPerEntity;
_layouts = new UnsafeArray<ComponentMemoryLayout>(components.Length, Allocator.Persistent);
_componentIDToOffset = new UnsafeArray<int>(_maxComponentID + 1, Allocator.Persistent);
@@ -176,7 +172,7 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
tempOffsets[i] = currentOffset;
currentOffset += _entityCapacity * size;
if (currentOffset > Chuck.CHUNK_SIZE)
if (currentOffset > Chunk.CHUNK_SIZE)
{
fits = false;
break;
@@ -220,7 +216,7 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
}
// Need to allocate a new chunk
var newChunk = new Chuck(Chuck.CHUNK_SIZE, _entityCapacity);
var newChunk = new Chunk(Chunk.CHUNK_SIZE, _entityCapacity);
rowIndex = 0;
newChunk.Count++;
@@ -234,9 +230,9 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
{
var chunk = _chunks[chunkIndex];
var chunkBase = chunk.GetUnsafePtr();
var pEntity = chunkBase + _entityIdsOffset + (sizeof(Entity) * rowIndex);
var dst = chunkBase + _entityIdsOffset + (sizeof(Entity) * rowIndex);
MemoryUtility.MemCpy(&entity, pEntity, (nuint)sizeof(Entity));
MemoryUtility.MemCpy(&entity, dst, (nuint)sizeof(Entity));
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
@@ -253,7 +249,20 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public ref Chuck GetChunkReference(int index)
public void* GetComponentDataPtr(int chunkIndex, int rowIndex, Identifier<IComponent> componentID)
{
var offset = _componentIDToOffset[componentID];
var chunk = _chunks[chunkIndex];
var chunkBase = chunk.GetUnsafePtr();
var size = ComponentRegister.GetComponentInfo(componentID).size;
var dst = chunkBase + offset + (size * rowIndex);
return dst;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public ref Chunk GetChunkReference(int index)
{
return ref _chunks[index];
}