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Update EntityManager and Archetype

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This commit is contained in:
Misaki
2025-12-04 15:03:01 +09:00
parent 948fae4401
commit 3bbf485fce
13 changed files with 397 additions and 131 deletions
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93
Ghost.ArcEntities/Archetype.cs
View File

@@ -43,18 +43,19 @@ internal unsafe struct Chuck : IDisposable
internal struct Edge
{
public int componentID;
public Identifier<IComponent> componentID;
public Identifier<Archetype> targetArchetype;
}
internal struct ComponentMemoryLayout
{
public int offset;
public int size;
public Identifier<IComponent> componentID;
}
internal unsafe struct Archetype : IIdentifierType, IDisposable
{
private struct ComponentMemoryLayout
{
public int offset;
public int size;
}
private readonly Identifier<Archetype> _id;
private readonly Identifier<World> _worldID;
@@ -63,18 +64,25 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
private UnsafeArray<ComponentMemoryLayout> _layouts;
private UnsafeArray<int> _componentIDToOffset;
// TODO: Is hash map better?
private UnsafeList<Edge> _edgesAdd;
private UnsafeList<Edge> _edgesRemove;
private int _hash;
private int _entityCapacity;
private int _maxComponentID;
private int _entityIdsOffset;
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;
public Archetype(Identifier<Archetype> id, Identifier<World> worldID, ReadOnlySpan<int> componentIds)
public Archetype(Identifier<Archetype> id, Identifier<World> worldID, ReadOnlySpan<Identifier<IComponent>> componentIds)
{
_id = id;
_worldID = worldID;
@@ -109,11 +117,13 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
_edgesAdd = new UnsafeList<Edge>(4, Allocator.Persistent);
_edgesRemove = new UnsafeList<Edge>(4, Allocator.Persistent);
_hash = _signature.GetHashCode();
var pComponents = stackalloc ComponentInfo[componentIds.Length];
for (var i = 0; i < componentIds.Length; i++)
{
_signature.SetBit(componentIds[i]);
pComponents[i] = ComponentRegister.s_registeredComponents[componentIds[i]];
pComponents[i] = ComponentRegister.GetComponentInfo(componentIds[i]);
}
CalculateLayout(new Span<ComponentInfo>(pComponents, componentIds.Length));
@@ -129,10 +139,11 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
var maxComponentID = 0;
for (var i = 0; i < components.Length; i++)
{
bytesPerEntity += components[i].size;
if (components[i].id > maxComponentID)
var comp = components[i];
bytesPerEntity += comp.size;
if (comp.id > maxComponentID)
{
maxComponentID = components[i].id;
maxComponentID = comp.id;
}
}
@@ -144,6 +155,7 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
_componentIDToOffset.AsSpan().Fill(-1);
components.Sort((a, b) => b.alignment.CompareTo(a.alignment));
var tempOffsets = stackalloc int[components.Length];
while (_entityCapacity > 0)
{
@@ -155,8 +167,6 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
_entityIdsOffset = currentOffset;
currentOffset += _entityCapacity * entitySize;
var tempOffsets = stackalloc int[components.Length];
for (var i = 0; i < components.Length; i++)
{
var size = components[i].size;
@@ -180,7 +190,8 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
_layouts[i] = new ComponentMemoryLayout
{
offset = tempOffsets[i],
size = components[i].size
size = components[i].size,
componentID = components[i].id
};
_componentIDToOffset[components[i].id] = tempOffsets[i];
@@ -227,6 +238,19 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
MemoryUtility.MemCpy(&entity, pEntity, (nuint)sizeof(Entity));
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void SetComponentData(int chunkIndex, int rowIndex, Identifier<IComponent> componentID, void* pComponent)
{
var offset = _componentIDToOffset[componentID];
var chunk = _chunks[chunkIndex];
var chunkBase = chunk.GetUnsafePtr();
var size = ComponentRegister.GetComponentInfo(componentID).size;
var dst = chunkBase + offset + (size * rowIndex);
MemoryUtility.MemCpy(pComponent, dst, (nuint)size);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public ref Chuck GetChunkReference(int index)
{
@@ -292,7 +316,13 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void AddEdgeAdd(int componentID, Identifier<Archetype> targetArchetype)
public bool HasComponent(Identifier<IComponent> componentID)
{
return _signature.IsSet(componentID);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void AddEdgeAdd(Identifier<IComponent> componentID, Identifier<Archetype> targetArchetype)
{
_edgesAdd.Add(new Edge
{
@@ -302,21 +332,22 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public Result<int, ResultStatus> GetEdgeAdd(int componentID)
public Identifier<Archetype> GetEdgeAdd(Identifier<IComponent> componentID)
{
for (var i = 0; i < _edgesAdd.Count; i++)
{
if (_edgesAdd[i].componentID == componentID)
var edge = _edgesAdd[i];
if (edge.componentID == componentID)
{
return Result.Create(_edgesAdd[i].targetArchetype.value, ResultStatus.Success);
return edge.targetArchetype;
}
}
return Result.Create(-1, ResultStatus.NotFound);
return Identifier<Archetype>.Invalid;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void AddEdgeRemove(int componentID, Identifier<Archetype> targetArchetype)
public void AddEdgeRemove(Identifier<IComponent> componentID, Identifier<Archetype> targetArchetype)
{
_edgesRemove.Add(new Edge
{
@@ -326,22 +357,23 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public Result<int, ResultStatus> GetEdgeRemove(int componentID)
public Identifier<Archetype> GetEdgeRemove(Identifier<IComponent> componentID)
{
for (var i = 0; i < _edgesRemove.Count; i++)
{
if (_edgesRemove[i].componentID == componentID)
var edge = _edgesRemove[i];
if (edge.componentID == componentID)
{
return Result.Create(_edgesRemove[i].targetArchetype.value, ResultStatus.Success);
return edge.targetArchetype;
}
}
return Result.Create(-1, ResultStatus.NotFound);
return Identifier<Archetype>.Invalid;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public UnsafeArray<T> GetComponentArray<T>(int chunkIndex)
where T : unmanaged
public Span<T> GetComponentArray<T>(int chunkIndex)
where T : unmanaged, IComponent
{
var id = ComponentTypeID<T>.value;
if (id >= _componentIDToOffset.Count)
@@ -356,7 +388,12 @@ internal unsafe struct Archetype : IIdentifierType, IDisposable
}
var chunk = _chunks[chunkIndex];
return new UnsafeArray<T>((T*)((byte*)chunk.GetUnsafePtr() + offset), _entityCapacity);
return new Span<T>((T*)((byte*)chunk.GetUnsafePtr() + offset), chunk.Count);
}
public override int GetHashCode()
{
return _hash;
}
public void Dispose()

62
Ghost.ArcEntities/Component.cs
View File

@@ -1,43 +1,51 @@
using Ghost.Core;
using Misaki.HighPerformance.LowLevel.Collections;
using Misaki.HighPerformance.LowLevel.Utilities;
namespace Ghost.ArcEntities;
public interface IComponent : IIdentifierType
{
}
public struct ComponentInfo
{
// public FixedText64 stableName; // Do we actually need this?
public int size;
public int alignment;
public int id;
public Identifier<IComponent> id;
}
internal static unsafe class ComponentTypeID<T>
where T : unmanaged
public static unsafe class ComponentTypeID<T>
where T : unmanaged, IComponent
{
public static readonly int value = ComponentRegister.GetOrRegisterComponent<T>();
public static readonly Identifier<IComponent> value = ComponentRegister.GetOrRegisterComponent<T>();
}
internal static class ComponentRegister
{
private static int s_nextComponentTypeID = 0;
private static Dictionary<IntPtr, int> s_typeHandleToID = new();
private static Dictionary<IntPtr, Identifier<IComponent>> s_typeHandleToID = new();
internal static List<ComponentInfo> s_registeredComponents = new();
internal static Dictionary<string, int> s_nameToRuntimeID = new();
private static List<ComponentInfo> s_registeredComponents = new();
private static Dictionary<string, Identifier<IComponent>> s_nameToRuntimeID = new();
internal unsafe static int GetOrRegisterComponent<T>()
where T : unmanaged
public unsafe static Identifier<IComponent> GetOrRegisterComponent<T>()
where T : unmanaged, IComponent
{
var typeHandle = typeof(T).TypeHandle.Value;
lock (s_registeredComponents)
{
if (s_typeHandleToID.TryGetValue(typeHandle, out int existingID))
if (s_typeHandleToID.TryGetValue(typeHandle, out var existingID))
{
return existingID;
}
int newID = s_nextComponentTypeID++;
string stableName = typeof(T).FullName ?? typeof(T).Name;
var newID = new Identifier<IComponent>(s_nextComponentTypeID);
s_nextComponentTypeID++;
var stableName = typeof(T).FullName ?? typeof(T).Name;
var info = new ComponentInfo
{
@@ -47,8 +55,8 @@ internal static class ComponentRegister
id = newID,
};
while (s_registeredComponents.Count <= newID) s_registeredComponents.Add(default);
s_registeredComponents[newID] = info;
while (s_registeredComponents.Count <= newID.value) s_registeredComponents.Add(default);
s_registeredComponents[newID.value] = info;
s_typeHandleToID[typeHandle] = newID;
s_nameToRuntimeID[stableName] = newID;
@@ -57,8 +65,32 @@ internal static class ComponentRegister
}
}
internal static ComponentInfo GetComponentInfo(int typeId)
public static ComponentInfo GetComponentInfo(Identifier<IComponent> typeId)
{
return s_registeredComponents[typeId];
}
public static int GetHashCode(ReadOnlySpan<Identifier<IComponent>> componentTypeIDs)
{
var largestID = 0;
foreach (var id in componentTypeIDs)
{
if (id.value > largestID)
{
largestID = id.value;
}
}
var length = UnsafeBitSet.RequiredLength(largestID + 1);
var bits = (Span<uint>)stackalloc uint[length];
bits.Clear();
var bitSet = new SpanBitSet(bits);
foreach (var id in componentTypeIDs)
{
bitSet.SetBit(id.value);
}
return bitSet.GetHashCode();
}
}

27
Ghost.ArcEntities/Entity.cs
View File

@@ -4,26 +4,26 @@ using System.Runtime.InteropServices;
namespace Ghost.ArcEntities;
[StructLayout(LayoutKind.Sequential, Size = 8)]
public struct Entity : IEquatable<Entity>, IComparable<Entity>
public readonly struct Entity : IEquatable<Entity>, IComparable<Entity>
{
public const EntityID INVALID_ID = -1;
private EntityID _id;
private GenerationID _generation;
private readonly EntityID _id;
private readonly GenerationID _generation;
public readonly EntityID ID
public EntityID ID
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get => _id;
}
public readonly GenerationID Generation
public GenerationID Generation
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get => _generation;
}
public readonly bool IsValid
public bool IsValid
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get => ID != INVALID_ID;
@@ -41,27 +41,24 @@ public struct Entity : IEquatable<Entity>, IComparable<Entity>
_generation = generation;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
internal void IncrementGeneration() => _generation++;
public readonly bool Equals(Entity other)
public bool Equals(Entity other)
{
return _id == other._id && _generation == other._generation;
}
public readonly int CompareTo(Entity other)
public int CompareTo(Entity other)
{
return _id.CompareTo(other._id);
}
public override readonly bool Equals(object? obj)
public override bool Equals(object? obj)
{
return obj is Entity other && Equals(other);
}
public override readonly int GetHashCode()
public override int GetHashCode()
{
return _id.GetHashCode();
return _id ^ _generation << 16;
}
public static bool operator ==(Entity left, Entity right)
@@ -74,7 +71,7 @@ public struct Entity : IEquatable<Entity>, IComparable<Entity>
return !(left == right);
}
public override readonly string ToString()
public override string ToString()
{
return $"Entity {{ Index: {ID}, Generation: {Generation} }}";
}

6
Ghost.ArcEntities/EntityCommandBuffer.cs
View File

@@ -23,7 +23,7 @@ public unsafe class EntityCommandBuffer : IDisposable
}
private readonly EntityManager _entityManager;
private UnsafeList<Command> _commands;
private UnsafeList<Command> _commands; // TODO: Maybe use UnsafeArray<byte> directly?
public EntityCommandBuffer(EntityManager entityManager)
{
@@ -58,7 +58,7 @@ public unsafe class EntityCommandBuffer : IDisposable
}
public void AddComponent<T>(Entity entity, T component)
where T : unmanaged
where T : unmanaged, IComponent
{
var data = new UnsafeArray<byte>(sizeof(T), Misaki.HighPerformance.LowLevel.Buffer.Allocator.Persistent);
MemoryUtility.MemCpy(&component, data.GetUnsafePtr(), (nuint)sizeof(T));
@@ -75,7 +75,7 @@ public unsafe class EntityCommandBuffer : IDisposable
}
public void RemoveComponent<T>(Entity entity)
where T : unmanaged
where T : unmanaged, IComponent
{
var command = new Command
{

179
Ghost.ArcEntities/EntityManager.cs
View File

@@ -1,10 +1,12 @@
using Ghost.Core;
using Misaki.HighPerformance.LowLevel.Buffer;
using Misaki.HighPerformance.LowLevel.Collections;
using Misaki.HighPerformance.LowLevel.Utilities;
using System.Diagnostics;
namespace Ghost.ArcEntities;
public class EntityManager : IDisposable
public unsafe class EntityManager : IDisposable
{
private struct EntityLocation
{
@@ -16,10 +18,51 @@ public class EntityManager : IDisposable
private World _world;
private UnsafeSlotMap<EntityLocation> _entityLocations;
internal EntityManager(World world)
internal EntityManager(World world, int initialCapacity)
{
_world = world;
_entityLocations = new UnsafeSlotMap<EntityLocation>(16, Allocator.Persistent);
_entityLocations = new UnsafeSlotMap<EntityLocation>(initialCapacity, Allocator.Persistent);
}
internal ResultStatus UpdateEntityLocation(Entity entity, Identifier<Archetype> newArchetypeID, int newChunkIndex, int newRowIndex)
{
ref var location = ref _entityLocations.GetElementReferenceAt(entity.ID, entity.Generation, out var exist);
if (!exist)
{
return ResultStatus.NotFound;
}
location.archetypeID = newArchetypeID;
location.chunkIndex = newChunkIndex;
location.rowIndex = newRowIndex;
return ResultStatus.Success;
}
public Entity CreateEntity(params ReadOnlySpan<Identifier<IComponent>> componentTypeIDs)
{
var signatureHash = ComponentRegister.GetHashCode(componentTypeIDs);
var arcID = _world.GetArchetypeIDBySignatureHash(signatureHash);
if (arcID.IsNotValid)
{
arcID = _world.CreateArchetype(componentTypeIDs, signatureHash);
}
ref var archetype = ref _world.GetArchetypeReference(arcID);
archetype.AllocateEntity(out var chunkIndex, out var rowIndex);
var id = _entityLocations.Add(new EntityLocation
{
archetypeID = arcID,
chunkIndex = chunkIndex,
rowIndex = rowIndex
}, out var generation);
var entity = new Entity(id, generation);
archetype.SetEntity(chunkIndex, rowIndex, entity);
return entity;
}
public Entity CreateEntity()
@@ -41,7 +84,7 @@ public class EntityManager : IDisposable
return entity;
}
public ResultStatus RemoveEntity(Entity entity)
public ResultStatus DestoryEntity(Entity entity)
{
if (!_entityLocations.TryGetElementAt(entity.ID, entity.Generation, out var location))
{
@@ -63,23 +106,23 @@ public class EntityManager : IDisposable
return ResultStatus.Success;
}
internal ResultStatus UpdateEntityLocation(Entity entity, Identifier<Archetype> newArchetypeID, int newChunkIndex, int newRowIndex)
private static void CopyData(ref Archetype oldArch, int oldChunk, int oldRow,
ref Archetype newArch, int newChunk, int newRow)
{
ref var location = ref _entityLocations.GetElementReferenceAt(entity.ID, entity.Generation, out var exist);
if (!exist)
// Iterate every component type in the OLD archetype
for (int i = 0; i < oldArch.Layouts.Count; i++)
{
return ResultStatus.NotFound;
var layout = oldArch.Layouts[i];
var src = oldArch.Chunks[oldChunk].GetUnsafePtr() + layout.offset + (layout.size * oldRow);
var newOffset = newArch.GetOffset(layout.componentID); // O(1) Lookup
var dst = oldArch.Chunks[oldChunk].GetUnsafePtr() + newOffset + (layout.size * newRow);
MemoryUtility.MemCpy(src, dst, (nuint)layout.size);
}
}
location.archetypeID = newArchetypeID;
location.chunkIndex = newChunkIndex;
location.rowIndex = newRowIndex;
return ResultStatus.Success;
}
public ResultStatus AddComponent<T>(Entity entity)
where T : unmanaged
public ResultStatus AddComponent(Entity entity, Identifier<IComponent> componentID, void* component)
{
// Find current location
ref var location = ref _entityLocations.GetElementReferenceAt(entity.ID, entity.Generation, out var exist);
@@ -89,12 +132,14 @@ public class EntityManager : IDisposable
}
// Build new archetype signature
ref var archetype = ref _world.GetArchetypeReference(location.archetypeID);
var currentSignature = archetype.Signature;
ref var oldArchetype = ref _world.GetArchetypeReference(location.archetypeID);
var oldSignature = oldArchetype.Signature;
var compID = ComponentTypeID<T>.value;
var largestComponentID = Math.Max(currentSignature.Count, compID);
// TODO: Check edge cache first.
var newArcID = oldArchetype.GetEdgeAdd(componentID);
if (newArcID.IsNotValid)
{
var largestComponentID = Math.Max(oldSignature.Count, componentID);
var length = UnsafeBitSet.RequiredLength(largestComponentID + 1);
Span<uint> bits = stackalloc uint[length];
@@ -102,49 +147,67 @@ public class EntityManager : IDisposable
var newSignature = new SpanBitSet(bits);
var i = 0;
var iterator = 0;
var compCount = 0;
do
while (true)
{
i = currentSignature.NextSetBit(i);
if (i == -1)
int bit = oldSignature.NextSetBit(iterator);
if (bit == -1)
{
break;
}
newSignature.SetBit(i);
newSignature.SetBit(bit);
iterator = bit + 1;
compCount++;
} while (true);
}
compCount++;
newSignature.SetBit(compID);
newSignature.SetBit(componentID);
// Find or create new archetype
var newSignatureHash = newSignature.GetHashCode();
var newArcID = _world.GetArchetypeIDBySignatureHash(newSignatureHash);
newArcID = _world.GetArchetypeIDBySignatureHash(newSignatureHash);
if (newArcID.IsNotValid)
{
// Create new archetype
Span<int> componentTypeIDs = stackalloc int[compCount];
componentTypeIDs[0] = compID;
Span<Identifier<IComponent>> componentTypeIDs = stackalloc Identifier<IComponent>[compCount];
componentTypeIDs[0] = componentID;
do
iterator = 0;
while (true)
{
i = currentSignature.NextSetBit(i);
if (i == -1)
int bit = oldSignature.NextSetBit(iterator);
if (bit == -1)
{
break;
}
componentTypeIDs[--compCount] = i;
} while (true);
componentTypeIDs[--compCount] = bit;
iterator = bit + 1;
}
_world.CreateArchetype(componentTypeIDs, newSignatureHash);
}
oldArchetype.AddEdgeAdd(componentID, newArcID);
}
// Move entity data
ref var newArchetype = ref _world.GetArchetypeReference(newArcID);
newArchetype.AllocateEntity(out var newChunkIndex, out var newRowIndex);
CopyData(ref oldArchetype, location.chunkIndex, location.rowIndex,
ref newArchetype, newChunkIndex, newRowIndex);
newArchetype.SetEntity(newChunkIndex, newRowIndex, entity);
newArchetype.SetComponentData(newChunkIndex, newRowIndex, componentID, component);
var r = oldArchetype.RemoveEntity(location.chunkIndex, location.rowIndex);
Debug.Assert(r == ResultStatus.Success); // We assert it because the entity should exist if the whole system is consistent.
// if (r != ResultStatus.Success)
// {
// return r;
// }
// Update location
location.archetypeID = newArcID;
@@ -154,6 +217,48 @@ public class EntityManager : IDisposable
return ResultStatus.Success;
}
public ResultStatus AddComponent<T>(Entity entity, ref T component)
where T : unmanaged, IComponent
{
return AddComponent(entity, ComponentTypeID<T>.value, UnsafeUtility.AddressOf(ref component));
}
public ResultStatus SetComponentData(Entity entity, Identifier<IComponent> componentID, void* pComponent)
{
if (!_entityLocations.TryGetElementAt(entity.ID, entity.Generation, out var location))
{
return ResultStatus.NotFound;
}
ref var archetype = ref _world.GetArchetypeReference(location.archetypeID);
archetype.SetComponentData(location.chunkIndex, location.rowIndex, componentID, pComponent);
return ResultStatus.Success;
}
public ResultStatus SetComponentData<T>(Entity entity, ref T component)
where T : unmanaged, IComponent
{
return SetComponentData(entity, ComponentTypeID<T>.value, UnsafeUtility.AddressOf(ref component));
}
public bool HasComponent(Entity entity, Identifier<IComponent> componentID)
{
if (!_entityLocations.TryGetElementAt(entity.ID, entity.Generation, out var location))
{
return false;
}
ref var archetype = ref _world.GetArchetypeReference(location.archetypeID);
return archetype.HasComponent(componentID);
}
public bool HasComponent<T>(Entity entity)
where T : unmanaged, IComponent
{
return HasComponent(entity, ComponentTypeID<T>.value);
}
public void Dispose()
{
_entityLocations.Dispose();

4
Ghost.ArcEntities/EntityQuery.cs
View File

@@ -1,8 +1,8 @@
namespace Ghost.ArcEntities;
public unsafe class EntityQuery<T1, T2>
where T1 : unmanaged
where T2 : unmanaged
where T1 : unmanaged, IComponent
where T2 : unmanaged, IComponent
{
// The Cache Struct
struct ArchetypeCache

5
Ghost.ArcEntities/Utility.cs Normal file
View File

@@ -0,0 +1,5 @@
namespace Ghost.ArcEntities;
public static class Utility
{
}

12
Ghost.ArcEntities/World.cs
View File

@@ -57,11 +57,13 @@ public partial class World : IIdentifierType, IDisposable, IEquatable<World>
private UnsafeList<Archetype> _archetypes;
private UnsafeHashMap<int, Identifier<Archetype>> _archetypeLookup; // Signature Hash to Archetype ID
private EntityManager _entityManager;
private EntityCommandBuffer _entityCommandBuffer;
private bool _disposed = false;
public Identifier<World> ID => _id;
public EntityManager EntityManager => _entityManager;
public EntityCommandBuffer EntityCommandBuffer => _entityCommandBuffer;
private World(Identifier<World> id, int entityCapacity)
{
@@ -70,10 +72,11 @@ public partial class World : IIdentifierType, IDisposable, IEquatable<World>
_archetypes = new UnsafeList<Archetype>(16, Allocator.Persistent);
_archetypeLookup = new UnsafeHashMap<int, Identifier<Archetype>>(16, Allocator.Persistent);
_entityManager = new EntityManager(this);
_entityManager = new EntityManager(this, entityCapacity);
_entityCommandBuffer = new EntityCommandBuffer(_entityManager);
// Create the empty archetype
CreateArchetype(ReadOnlySpan<int>.Empty, 0);
CreateArchetype(ReadOnlySpan<Identifier<IComponent>>.Empty, 0);
}
~World()
@@ -81,11 +84,12 @@ public partial class World : IIdentifierType, IDisposable, IEquatable<World>
Dispose();
}
internal Identifier<Archetype> CreateArchetype(ReadOnlySpan<int> componentTypeIDs, int signatureHash)
internal Identifier<Archetype> CreateArchetype(ReadOnlySpan<Identifier<IComponent>> componentTypeIDs, int signatureHash)
{
var arcID = new Identifier<Archetype>(_archetypes.Count);
_archetypes.Add(new Archetype(arcID, _id, componentTypeIDs));
_archetypeLookup.Add(signatureHash, arcID);
return arcID;
}
@@ -136,6 +140,8 @@ public partial class World : IIdentifierType, IDisposable, IEquatable<World>
return;
}
_entityManager.Dispose();
_archetypes.Dispose();
_archetypeLookup.Dispose();

23
Ghost.Core/Handle.cs
View File

@@ -106,6 +106,29 @@ public readonly struct Identifier<T>
{
return !a.Equals(b);
}
public static bool operator <(Identifier<T> a, Identifier<T> b)
{
return a.value < b.value;
}
public static bool operator >(Identifier<T> a, Identifier<T> b)
{
return a.value > b.value;
}
public static bool operator <=(Identifier<T> a, Identifier<T> b)
{
return a.value <= b.value;
}
public static bool operator >=(Identifier<T> a, Identifier<T> b)
{
return a.value >= b.value;
}
public static implicit operator int(Identifier<T> id) => id.value;
public static implicit operator Identifier<T>(int value) => new Identifier<T>(value);
}
public readonly struct Key<T>

30
Ghost.Core/Result.cs
View File

@@ -152,6 +152,14 @@ public readonly ref struct RefResult<T, S>
public static class ResultExtensions
{
public static void ThrowIfFailed(this ResultStatus result)
{
if (result != ResultStatus.Success)
{
throw new InvalidOperationException($"Operation failed: {result}");
}
}
public static void ThrowIfFailed(this Result result)
{
if (!result.IsSuccess)
@@ -170,11 +178,6 @@ public static class ResultExtensions
return result.Value;
}
public static T? GetValueOrDefault<T>(this Result<T> result, T? defaultValue = default)
{
return result.IsSuccess ? result.Value : defaultValue;
}
public static T GetValueOrThrow<T, S>(this Result<T, S> result, S expect)
where S : Enum
{
@@ -186,12 +189,29 @@ public static class ResultExtensions
return result.Value;
}
public static T? GetValueOrDefault<T>(this Result<T> result, T? defaultValue = default)
{
return result.IsSuccess ? result.Value : defaultValue;
}
public static T? GetValueOrDefault<T, S>(this Result<T, S> result, S expect, T? defaultValue = default)
where S : Enum
{
return (result.Status?.Equals(expect) ?? false) ? defaultValue : result.Value;
}
public static bool TryGetValue<T>(this Result<T> result, out T value)
{
if (result.IsSuccess)
{
value = result.Value;
return true;
}
value = default!;
return false;
}
public static Result OnSuccess(this Result result, Action action)
{
if (result.IsSuccess)

42
Ghost.Entities.Test/ArcEntityTest.cs Normal file
View File

@@ -0,0 +1,42 @@
using Ghost.Test.Core;
using Ghost.ArcEntities;
using Misaki.HighPerformance.Mathematics;
namespace Ghost.Entities.Test;
public partial class ArcEntityTest : ITest
{
private Ghost.ArcEntities.World _world = null!;
public void Setup()
{
_world = Ghost.ArcEntities.World.Create();
}
public void Run()
{
var entity1 = _world.EntityManager.CreateEntity(ComponentTypeID<TransformData>.value);
Console.WriteLine($"{entity1} Has Transform: {_world.EntityManager.HasComponent<TransformData>(entity1)}");
var mesh = new MeshData { index = 1 };
_world.EntityManager.AddComponent<MeshData>(entity1, ref mesh);
Console.WriteLine($"{entity1} Has Mesh: {_world.EntityManager.HasComponent<MeshData>(entity1)}");
_world.EntityManager.DestoryEntity(entity1);
Console.WriteLine($"{entity1} Has Transform: {_world.EntityManager.HasComponent<TransformData>(entity1)}");
}
public void Cleanup()
{
_world.Dispose();
}
}
public struct TransformData : IComponent
{
public float3 position;
}
public struct MeshData : IComponent
{
public int index;
}

1
Ghost.Entities.Test/Ghost.Entities.Test.csproj
View File

@@ -9,6 +9,7 @@
<ItemGroup>
<ProjectReference Include="..\Ghost.Entities\Ghost.Entities.csproj" />
<ProjectReference Include="..\Ghost.ArcEntities\Ghost.ArcEntities.csproj" />
<ProjectReference Include="..\Ghost.Test.Core\Ghost.Test.Core.csproj" />
</ItemGroup>

4
Ghost.Entities.Test/Program.cs
View File

@@ -1,5 +1,3 @@
using Ghost.Entities.Test;
using Ghost.Test.Core;
TestRunner.Run<EntityTest>();
TestRunner.Run<Ghost.Entities.Test.ArcEntityTest>();