完善NetDatabase

Assets/Scenes/SampleScene.unity

@@ -354,6 +354,50 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   address: 127.0.0.1
   driverAsset: {fileID: 11400000, guid: a8a5562854ecf4cc1a49700e8bd93c19, type: 2}
+--- !u!1 &1633746920
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 1633746922}
+  - component: {fileID: 1633746921}
+  m_Layer: 0
+  m_Name: Tests
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!114 &1633746921
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1633746920}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: dae5c80c53134e4689ce1b03af81f96e, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+--- !u!4 &1633746922
+Transform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1633746920}
+  serializedVersion: 2
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children: []
+  m_Father: {fileID: 0}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!1 &1936170114
 GameObject:
   m_ObjectHideFlags: 0
@@ -408,3 +452,4 @@ SceneRoots:
   - {fileID: 705507995}
   - {fileID: 1936170116}
   - {fileID: 1613085078}
+  - {fileID: 1633746922}

Assets/Scripts/Server/ServerMain.cs

@@ -33,14 +33,12 @@ namespace ECSTest.Server
             disconnectIndexList = new NativeList<int>(16, Allocator.Persistent);
 
             var cannonMeta = EntityDataBlockMeta.Create<CannonData>();
-            world.cannonDatabase =
-                new EntityDatabase<EntityType, EntityDataBlockChain>(EntityType.Cannon,
-                    new EntityDataBlockChain(cannonMeta));
+            var cannonDataBlockChain = new EntityDataBlockChain(cannonMeta, Allocator.Persistent);
+            world.cannonDatabase = cannonDataBlockChain.CreateEntityDatabase(EntityType.Cannon, 16);
             
             var bulletMeta = EntityDataBlockMeta.Create<BulletData>();
-            world.bulletDatabase =
-                new EntityDatabase<EntityType, EntityDataBlockChain>(EntityType.Bullet,
-                    new EntityDataBlockChain(bulletMeta));
+            var bulletDataBlockChain = new EntityDataBlockChain(bulletMeta, Allocator.Persistent);
+            world.bulletDatabase = bulletDataBlockChain.CreateEntityDatabase(EntityType.Bullet, 16);
         }
 
         private void OnDisable()

Assets/Scripts/TestEntityDataBlock.cs

@@ -1,4 +1,5 @@
 using GameCore.TinyECS;
+using Unity.Collections;
 using UnityEngine;
 
 namespace ECSTest
@@ -8,7 +9,7 @@ namespace ECSTest
         public static void Run()
         {
             var meta = EntityDataBlockMeta.Create<TransformData, StateData>();
-            using var blockChain = new EntityDataBlockChain(meta, 1000);
+            using var blockChain = new EntityDataBlockChain(meta, Allocator.Persistent, 1000);
             
             blockChain.Add();
             ref var stateData = ref blockChain.GetDataRef<StateData>(0);

LocalPackages/com.nimin.lowlevel/Runtime/NativeArrayExtensions.cs

@@ -0,0 +1,31 @@
+using System;
+using Unity.Collections;
+using Unity.Collections.LowLevel.Unsafe;
+
+namespace GameCore.LowLevel
+{
+    public static class NativeArrayExtensions
+    {
+        public static ref T GetRef<T>(this NativeArray<T> array, int index)
+            where T : struct
+        {
+            if (index < 0 || index >= array.Length)
+                throw new ArgumentOutOfRangeException(nameof(index));
+            unsafe
+            {
+                return ref UnsafeUtility.ArrayElementAsRef<T>(array.GetUnsafePtr(), index);
+            }
+        }
+
+        public static ref readonly T GetReadOnlyRef<T>(this NativeArray<T> array, int index)
+            where T : struct
+        {
+            if (index < 0 || index >= array.Length)
+                throw new ArgumentOutOfRangeException(nameof(index));
+            unsafe
+            {
+                return ref UnsafeUtility.ArrayElementAsRef<T>(array.GetUnsafeReadOnlyPtr(), index);
+            }
+        }
+    }
+}

LocalPackages/com.nimin.lowlevel/Runtime/NativeArrayExtensions.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 9b8d3e5900ff43ab8d285485371094ca
+timeCreated: 1767086551

LocalPackages/com.nimin.lowlevel/Runtime/NativeDataContainer.cs

@@ -0,0 +1,55 @@
+using System;
+using Unity.Collections;
+using Unity.Collections.LowLevel.Unsafe;
+
+namespace GameCore.LowLevel
+{
+    public unsafe struct NativeDataContainer<T> : IDisposable where T : unmanaged
+    {
+        [NativeDisableUnsafePtrRestriction]
+        internal UnsafeDataContainer* m_UnsafeDataPtr;
+        internal AllocatorManager.AllocatorHandle m_Allocator;
+
+        public bool IsCreated => m_UnsafeDataPtr != null;
+
+        public NativeDataContainer(AllocatorManager.AllocatorHandle allocator)
+        {
+            m_UnsafeDataPtr = AllocatorManager.Allocate<UnsafeDataContainer>(allocator);
+            *m_UnsafeDataPtr = new UnsafeDataContainer(UnsafeUtility.SizeOf<T>(), allocator);
+
+            m_Allocator = allocator;
+        }
+
+        public void Dispose()
+        {
+            if (!IsCreated)
+            {
+                return;
+            }
+
+            m_UnsafeDataPtr->Dispose();
+            AllocatorManager.Free(m_Allocator, m_UnsafeDataPtr);
+            m_UnsafeDataPtr = null;
+        }
+
+        public bool Free(int index)
+        {
+            return m_UnsafeDataPtr->Free(index);
+        }
+
+        public int Alloc(UnsafeDataContainer.AllocOptions options = UnsafeDataContainer.AllocOptions.None)
+        {
+            return m_UnsafeDataPtr->Alloc(options);
+        }
+
+        public ref T ElementAt(int index)
+        {
+            return ref m_UnsafeDataPtr->ElementAt<T>(index);
+        }
+
+        public void Clear()
+        {
+            m_UnsafeDataPtr->Clear();
+        }
+    }
+}

LocalPackages/com.nimin.lowlevel/Runtime/NativeDataContainer.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 8c8c1ce9e9104a6ab8e96adc313588fe
+timeCreated: 1767171335

LocalPackages/com.nimin.lowlevel/Runtime/UnsafeDataContainer.cs

@@ -0,0 +1,102 @@
+using System;
+using Unity.Collections;
+using Unity.Collections.LowLevel.Unsafe;
+using UnityEngine;
+
+namespace GameCore.LowLevel
+{
+    public unsafe struct UnsafeDataContainer : IDisposable
+    {
+        private struct FreeNode
+        {
+            public int next;
+            public int _padding;
+        }
+
+        public enum AllocOptions
+        {
+            None = 0,
+            ClearNew = 1,
+            ClearAll = 2,
+        }
+        
+        public readonly int elementSize;
+        private UnsafeList<FreeNode> m_Buffer;
+        private readonly int m_NodeNumPerElement;
+
+        public bool IsCreated => m_Buffer.IsCreated;
+        
+        public UnsafeDataContainer(int elementSize, AllocatorManager.AllocatorHandle allocator)
+        {
+            if (elementSize <= 0)
+                throw new ArgumentException(nameof(elementSize));
+            
+            this.elementSize = elementSize;
+            m_NodeNumPerElement = ComputeNodeNumPerElement(elementSize);
+            
+            m_Buffer = new UnsafeList<FreeNode>(0, allocator);
+            m_Buffer.Resize(m_NodeNumPerElement, NativeArrayOptions.ClearMemory);
+        }
+
+        public void Dispose()
+        {
+            m_Buffer.Dispose();
+        }
+
+        public bool Free(int index)
+        {
+            ref var node = ref m_Buffer.ElementAt(index * m_NodeNumPerElement);
+            if (node.next >= 0)
+                return false;
+            
+            ref var head = ref m_Buffer.ElementAt(0);
+            node.next = head.next;
+            head.next = index;
+            return true;
+        }
+
+        public int Alloc(AllocOptions options = AllocOptions.None)
+        {
+            ref var head = ref m_Buffer.ElementAt(0);
+            var index = head.next;
+            if (index == 0)
+            {
+                index = m_Buffer.Length / m_NodeNumPerElement;
+                m_Buffer.Resize(m_Buffer.Length + m_NodeNumPerElement, options == AllocOptions.None ? NativeArrayOptions.UninitializedMemory : NativeArrayOptions.ClearMemory);
+                m_Buffer.ElementAt(index * m_NodeNumPerElement).next = -1;
+                return index;
+            }
+            
+            ref var node = ref m_Buffer.ElementAt(index * m_NodeNumPerElement);
+            if (options == AllocOptions.ClearAll)
+            {
+                var ptr = m_Buffer.Ptr + index * m_NodeNumPerElement;
+                UnsafeUtility.MemClear(ptr, m_NodeNumPerElement * UnsafeUtility.SizeOf<FreeNode>());
+            }
+
+            head.next = node.next;
+            node.next = -1;
+            return index;
+        }
+
+        public ref T ElementAt<T>(int index) where T : unmanaged
+        {
+            ref var node = ref m_Buffer.ElementAt(index * m_NodeNumPerElement);
+            if (node.next >= 0)
+                throw new IndexOutOfRangeException();
+            
+            return ref UnsafeUtility.As<FreeNode, T>(ref m_Buffer.ElementAt(index * m_NodeNumPerElement + 1));
+        }
+
+        public void Clear()
+        {
+            m_Buffer.Resize(m_NodeNumPerElement);
+            m_Buffer.ElementAt(0).next = 0;
+        }
+
+        internal static int ComputeNodeNumPerElement(int elementSize)
+        {
+            return (elementSize + UnsafeUtility.SizeOf<FreeNode>() - 1) / UnsafeUtility.SizeOf<FreeNode>() + 1;
+        }
+    }
+}

LocalPackages/com.nimin.lowlevel/Runtime/UnsafeDataContainer.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 345278cb8e5e4c4cbd58ead608d3d098
+timeCreated: 1766977488

LocalPackages/com.nimin.lowlevel/Runtime/nimin.lowlevel.asmdef

@@ -5,25 +5,9 @@
         "Unity.Collections",
         "Unity.Mathematics"
     ],
-    "includePlatforms": [
-        "Android",
-        "Editor",
-        "iOS",
-        "LinuxStandalone64",
-        "Lumin",
-        "macOSStandalone",
-        "PS4",
-        "Stadia",
-        "Switch",
-        "tvOS",
-        "WSA",
-        "WebGL",
-        "WindowsStandalone32",
-        "WindowsStandalone64",
-        "XboxOne"
-    ],
+    "includePlatforms": [],
     "excludePlatforms": [],
-    "allowUnsafeCode": false,
+    "allowUnsafeCode": true,
     "overrideReferences": false,
     "precompiledReferences": [],
     "autoReferenced": true,

LocalPackages/com.nimin.network/Runtime/FrameHistoryItem.cs

@@ -0,0 +1,44 @@
+using Unity.Collections;
+using Unity.Collections.LowLevel.Unsafe;
+using Unity.Mathematics;
+
+namespace GameCore.Network
+{
+    public readonly struct FrameHistoryItem
+    {
+        public readonly ulong mask;
+        public readonly int frameId;
+
+        public const int kMaxBitCount = 64;
+
+        public bool IsDirty => mask != 0ul;
+        
+        private FrameHistoryItem(ulong mask, int frameId)
+        {
+            this.mask = mask;
+            this.frameId = frameId;
+        }
+
+        public static unsafe FrameHistoryItem Make<T>(T baseData, T newData, NativeArray<int> fieldSizeArray, int frameId) where T : unmanaged
+        {
+            var basePtr = (byte*) &baseData;
+            var newPtr = (byte*) &newData;
+
+            ulong mask = 0ul;
+            var offset = 0;
+            for (int i = 0, n = math.min(64, fieldSizeArray.Length); i < n; ++i)
+            {
+                var nextOffset = fieldSizeArray[i];
+                var fieldSize = nextOffset - offset;
+                if (UnsafeUtility.MemCmp(basePtr + offset, newPtr + offset, fieldSize) != 0)
+                {
+                    mask |= 1ul << i;
+                }
+
+                offset = nextOffset;
+            }
+
+            return new FrameHistoryItem(mask, frameId);
+        }
+    }
+}

LocalPackages/com.nimin.network/Runtime/FrameHistoryItem.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 89511e3f5bb34d8e8dd6d7cba42f415c
+timeCreated: 1767080177

LocalPackages/com.nimin.network/Runtime/NetDatabase.Snapshot.cs

@@ -0,0 +1,15 @@
+using System;
+
+namespace GameCore.Network
+{
+    public partial struct NetDatabase
+    {
+        public readonly struct Snapshot : IDisposable
+        {
+            public void Dispose()
+            {
+                
+            }
+        }
+    }
+}

LocalPackages/com.nimin.network/Runtime/NetDatabase.Snapshot.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 00a87772eaf0440eacc57a8efcad5707
+timeCreated: 1767177624

LocalPackages/com.nimin.network/Runtime/NetDatabase.cs

@@ -0,0 +1,187 @@
+using System;
+using GameCore.LowLevel;
+using Unity.Collections;
+using Unity.Collections.LowLevel.Unsafe;
+using UnityEngine;
+
+namespace GameCore.Network
+{
+    public partial struct NetDatabase : IDisposable
+    {
+        private struct Entry
+        {
+            public int generation;
+            public int typeIndex;
+            public int dataIndex;
+            public ushort historyOffset;
+            public ushort historyCount;
+            public int parentIndex;
+            public int childrenIndex;
+        }
+        
+        private NativeDataContainer<Entry> entries;
+        private NativeArray<UnsafeDataContainer> dataContainers;
+        private NativeList<FrameHistoryItem> frameHistoryList;
+
+        private readonly int maxHistoryCount;
+        private readonly AllocatorManager.AllocatorHandle allocator;
+
+        public NetDatabase(TypeMetaDatabase typeMetaDatabase, int maxHistoryCount,
+            AllocatorManager.AllocatorHandle allocator)
+        {
+            entries = new(allocator);
+
+            var typeCount = typeMetaDatabase.GetTotalTypeCount();
+            dataContainers = new NativeArray<UnsafeDataContainer>(typeCount, allocator.ToAllocator);
+            for (var i = 0; i < typeCount; i++)
+            {
+                if (typeMetaDatabase.IsValid(i))
+                {
+                    dataContainers[i] = new UnsafeDataContainer(typeMetaDatabase.GetTypeSize(i), allocator);
+                }
+            }
+
+            frameHistoryList = new NativeList<FrameHistoryItem>(allocator);
+
+            this.maxHistoryCount = maxHistoryCount;
+            this.allocator = allocator;
+        }
+
+        public void Dispose()
+        {
+            entries.Dispose();
+            
+            var typeCount = dataContainers.Length;
+            for (var i = 0; i < typeCount; i++)
+            {
+                if (dataContainers[i].IsCreated)
+                    dataContainers[i].Dispose();
+            }
+            dataContainers.Dispose();
+            frameHistoryList.Dispose();
+        }
+
+        public int Add<T>(T data, int frameId, int parentIndex, out int generation,
+            TypeMetaDatabase typeMetaDatabase) where T : unmanaged
+        {
+            var typeIndex = typeMetaDatabase.TypeIndexOf<T>();
+
+            var childrenIndex = 0;
+            generation = 0;
+            // if (parentIndex > 0)
+            // {
+            //     if (parentIndex >= entryList.Length)
+            //         return 0;
+            //     
+            //     ref var parentEntry = ref entryList.ElementAt(parentIndex);
+            //     if (parentEntry.childrenIndex > 0)
+            //     {
+            //         childrenIndex = parentEntry.childrenIndex;
+            //     }
+            //     else
+            //     {
+            //         //TODO
+            //     }
+            // }
+
+            var entryIndex = entries.Alloc(UnsafeDataContainer.AllocOptions.ClearNew);
+            ref var entry = ref entries.ElementAt(entryIndex);
+            generation = entry.generation + 1;
+            entry.generation = generation;
+            entry.typeIndex = typeIndex;
+
+            ref var dataContainer = ref dataContainers.GetRef(typeIndex);
+            var dataIndex = dataContainer.Alloc();
+            entry.dataIndex = dataIndex;
+            dataContainer.ElementAt<T>(dataIndex) = data;
+
+            //TODO
+            //entry.parentIndex = parentIndex;
+
+            entry.historyOffset = 0;
+            var fieldSizeArray = typeMetaDatabase.GetFieldSizeArray(typeIndex);
+            var frameHistoryItem = FrameHistoryItem.Make(default, data, fieldSizeArray, frameId);
+            var minLength = (entryIndex + 1) * maxHistoryCount;
+            if (frameHistoryList.Length < minLength)
+            {
+                frameHistoryList.Resize(minLength, NativeArrayOptions.UninitializedMemory);
+            }
+
+            frameHistoryList.ElementAt(entryIndex * maxHistoryCount) = frameHistoryItem;
+            entry.historyCount = 1;
+
+            return entryIndex;
+        }
+
+        public ref readonly T Get<T>(int index, TypeMetaDatabase typeMetaDatabase) where T : unmanaged
+        {
+            var typeIndex = typeMetaDatabase.TypeIndexOf<T>();
+
+            ref var entry = ref entries.ElementAt(index);
+            if (entry.typeIndex != typeIndex)
+            {
+                throw new Exception("Type mismatch");
+            }
+            
+            ref var dataContainer = ref dataContainers.GetRef(typeIndex);
+            return ref dataContainer.ElementAt<T>(entry.dataIndex);
+        }
+
+        public bool Update<T>(int index, T data, int frameId, TypeMetaDatabase typeMetaDatabase) where T : unmanaged
+        {
+            var typeIndex = typeMetaDatabase.TypeIndexOf<T>();
+
+            ref var entry = ref entries.ElementAt(index);
+            if (entry.typeIndex != typeIndex)
+            {
+                throw new Exception("Type mismatch");
+            }
+            
+            ref var dataContainer = ref dataContainers.GetRef(typeIndex);
+            ref var dataRef = ref dataContainer.ElementAt<T>(entry.dataIndex);
+            var baseData = dataRef;
+            
+            var fieldSizeArray = typeMetaDatabase.GetFieldSizeArray(typeIndex);
+            var frameHistoryItem = FrameHistoryItem.Make(baseData, data, fieldSizeArray, frameId);
+            if (!frameHistoryItem.IsDirty)
+                return false;
+            
+            dataRef = data;
+            
+            var startIndex = (entry.historyOffset + entry.historyCount) % maxHistoryCount;
+            frameHistoryList.ElementAt(index * maxHistoryCount + startIndex) = frameHistoryItem;
+            if (entry.historyCount == maxHistoryCount)
+            {
+                entry.historyOffset = (ushort) ((entry.historyOffset + 1) % maxHistoryCount);
+            }
+            else
+            {
+                entry.historyCount++;
+            }
+
+            return true;
+        }
+
+        public bool Remove(int index)
+        {
+            if (!entries.Free(index))
+                return false;
+            
+            ref var entry = ref entries.ElementAt(index);
+            ref var dataContainer = ref dataContainers.GetRef(entry.dataIndex);
+            if (!dataContainer.Free(entry.dataIndex))
+                throw new Exception("Data mismatch");
+
+            //TODO
+            
+            return true;
+        }
+
+        public int GetGeneration(int index)
+        {
+            ref var entry = ref entries.ElementAt(index);
+            return entry.generation;
+        }
+
+    }
+}

LocalPackages/com.nimin.network/Runtime/NetDatabase.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: a240ee2c529a484b845eb5030590debf
+timeCreated: 1766976618

LocalPackages/com.nimin.network/Runtime/Test.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 60aaddd5a9e34cf68dd79f1a493e34b4
+timeCreated: 1767162757

LocalPackages/com.nimin.network/Runtime/Test/TestNetDatabase.cs

@@ -0,0 +1,74 @@
+using System;
+using Unity.Burst;
+using Unity.Collections;
+using Unity.Jobs;
+using Unity.Mathematics;
+using UnityEngine;
+
+namespace GameCore.Network.Test
+{
+    public class TestNetDatabase : MonoBehaviour
+    {
+        public struct Troop
+        {
+            public float2 position;
+        }
+
+        public struct Soldier
+        {
+            public int id;
+            public int2 coord;
+        }
+        
+        private TypeMetaDatabase typeMetaDatabase;
+        private NetDatabase netDatabase;
+
+        private void OnEnable()
+        {
+            typeMetaDatabase = new TypeMetaDatabase(Allocator.Persistent);
+            typeMetaDatabase.RegisterType<Troop>();
+            typeMetaDatabase.RegisterType<Soldier>();
+            
+            netDatabase = new NetDatabase(typeMetaDatabase, 16, Allocator.Persistent);
+
+            var handle = new UpdateJob()
+            {
+                typeMetaDatabase = typeMetaDatabase,
+                netDatabase = netDatabase,
+                frameId = 1,
+            }.Schedule();
+            handle.Complete();
+        }
+
+        private void OnDisable()
+        {
+            typeMetaDatabase.Dispose();
+            netDatabase.Dispose();
+        }
+
+        [BurstCompile]
+        private struct UpdateJob : IJob
+        {
+            public TypeMetaDatabase typeMetaDatabase;
+            public NetDatabase netDatabase;
+            public int frameId;
+            
+            public void Execute()
+            {
+                var troop = new Troop() {position = new float2(1, 2)};
+                var troopIndex = netDatabase.Add(troop, frameId, 0, out var gen0, typeMetaDatabase);
+                Debug.Log($"Troop {troopIndex} added, generation {gen0}");
+                
+                var soldier = new Soldier() {id = 1, coord = new int2(1, 1)};
+                var soldierIndex = netDatabase.Add(soldier, frameId, 0, out var gen1, typeMetaDatabase);
+                Debug.Log($"Soldier {soldierIndex} added, generation {gen1}");
+
+                ref readonly var soldierData = ref netDatabase.Get<Soldier>(soldierIndex, typeMetaDatabase);
+                Debug.Log($"Soldier id: {soldierData.id}, coord: {soldierData.coord}");
+                soldier.coord = new int2(2, 2);
+                var ok = netDatabase.Update(soldierIndex, soldier, frameId, typeMetaDatabase);
+                Debug.Log($"Soldier update: {ok}, id: {soldierData.id}, coord: {soldierData.coord}");
+            }
+        }
+    }
+}

LocalPackages/com.nimin.network/Runtime/Test/TestNetDatabase.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: dae5c80c53134e4689ce1b03af81f96e
+timeCreated: 1767162806

LocalPackages/com.nimin.network/Runtime/TypeMetaDatabase.cs

@@ -0,0 +1,144 @@
+using System;
+using System.Diagnostics;
+using Unity.Burst;
+using Unity.Collections;
+using Unity.Collections.LowLevel.Unsafe;
+
+namespace GameCore.Network
+{
+    public struct TypeMetaDatabase : IDisposable
+    {
+        private struct TypeInfo
+        {
+            public int offset;
+            public int fieldCount;
+        }
+
+        private static class TypeIndexHelper
+        {
+            public static int currentIndex;
+        }
+
+        private struct TypeIndex<TT>
+        {
+            public int index;
+
+            public static readonly SharedStatic<TypeIndex<TT>> Instance =
+                SharedStatic<TypeIndex<TT>>.GetOrCreate<TypeIndex<TT>>();
+
+            [BurstDiscard]
+            static void EnsureInitialized()
+            {
+                if (Instance.Data.index == 0)
+                {
+                    Instance.Data.index = ++TypeIndexHelper.currentIndex;
+                }
+            }
+
+            public static int Get()
+            {
+                EnsureInitialized();
+                return Instance.Data.index;
+            }
+        }
+
+        private NativeList<TypeInfo> infoList;
+        private NativeList<int> sizeList;
+
+        public TypeMetaDatabase(AllocatorManager.AllocatorHandle allocator)
+        {
+            infoList = new NativeList<TypeInfo>(allocator);
+            sizeList = new NativeList<int>(allocator);
+            sizeList.Add(0);
+        }
+
+        public void Dispose()
+        {
+            infoList.Dispose();
+            sizeList.Dispose();
+        }
+
+        public int GetTotalTypeCount()
+        {
+            return infoList.Length;
+        }
+
+        public int TypeIndexOf<T>() where T : unmanaged
+        {
+            var typeIndex = TypeIndex<T>.Get();
+            CheckTypeIndex(typeIndex);
+            return typeIndex;
+        }
+
+        public void RegisterType<T>() where T : unmanaged
+        {
+            var typeIndex = TypeIndex<T>.Get();
+            var sizeListStartIndex = sizeList.Length;
+
+            var type = typeof(T);
+            var fields = type.GetFields();
+            var fieldOffset = 0;
+            foreach (var f in fields)
+            {
+                if (fieldOffset != UnsafeUtility.GetFieldOffset(f))
+                    throw new Exception("Field offset mismatch");
+                var size = UnsafeUtility.SizeOf(f.FieldType);
+                fieldOffset += size;
+                sizeList.Add(fieldOffset);
+            }
+
+            if (infoList.Length <= typeIndex)
+            {
+                infoList.Resize(typeIndex + 1, NativeArrayOptions.ClearMemory);
+            }
+            infoList.ElementAt(typeIndex) = new()
+            {
+                offset = sizeListStartIndex,
+                fieldCount = sizeList.Length - sizeListStartIndex,
+            };
+        }
+
+        public int GetTypeSize(int typeIndex)
+        {
+            CheckTypeIndex(typeIndex);
+            var info = infoList[typeIndex];
+            return sizeList[info.offset + info.fieldCount - 1];
+        }
+
+        public int GetTypeSize<T>() where T : unmanaged
+        {
+            return GetTypeSize(TypeIndex<T>.Get());
+        }
+
+        public NativeArray<int> GetFieldSizeArray(int typeIndex)
+        {
+            CheckTypeIndex(typeIndex);
+            var info = infoList[typeIndex];
+            return sizeList.AsArray().GetSubArray(info.offset, info.fieldCount);
+        }
+
+        public NativeArray<int> GetFieldSizeArray<T>() where T : unmanaged
+        {
+            return GetFieldSizeArray(TypeIndex<T>.Get());
+        }
+
+        public bool IsValid(int typeIndex)
+        {
+            if (typeIndex < 0 || typeIndex >= infoList.Length || infoList[typeIndex].offset == 0)
+                return false;
+            return true;
+        }
+        
+        public bool IsValid<T>()
+        {
+            return IsValid(TypeIndex<T>.Get());
+        }
+
+        [Conditional("DEBUG")]
+        void CheckTypeIndex(int typeIndex)
+        {
+            if (!IsValid(typeIndex))
+                throw new Exception("Invalid type index");
+        }
+    }
+}

LocalPackages/com.nimin.network/Runtime/TypeMetaDatabase.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 5c20e85b6570434bbb3ca669abfbcf24
+timeCreated: 1766999459

LocalPackages/com.nimin.network/Runtime/nimin.network.asmdef

@@ -2,10 +2,15 @@
     "name": "nimin.network",
     "rootNamespace": "",
     "references": [
-        "Unity.Networking.Transport"
+        "Unity.Networking.Transport",
+        "Unity.Collections",
+        "Unity.Burst",
+        "nimin.lowlevel",
+        "Unity.Mathematics"
     ],
+    "includePlatforms": [],
     "excludePlatforms": [],
-    "allowUnsafeCode": false,
+    "allowUnsafeCode": true,
     "overrideReferences": false,
     "precompiledReferences": [],
     "autoReferenced": true,

LocalPackages/com.nimin.tinyecs/Runtime/EntityCollection.cs

@@ -14,11 +14,12 @@ namespace GameCore.TinyECS
             public int generation;
         }
 
+        public readonly TEnum entityType;
+        
         private NativeList<Buffer> entityBuffer;
         private NativeList<int> entityIndexToDataIndex;
-        private TEnum entityType;
 
-        public EntityCollection(TEnum type, int capacity, Allocator allocator)
+        public EntityCollection(TEnum type, int capacity, AllocatorManager.AllocatorHandle allocator)
         {
             entityType = type;
             entityBuffer = new (capacity, allocator);

LocalPackages/com.nimin.tinyecs/Runtime/EntityDataStruct.Block.cs

@@ -19,22 +19,25 @@ namespace GameCore.TinyECS
         private FixedList512Bytes<IntPtr> blockPtrList;
         private int maxElementCountPerBlock;
         private int elementCount;
+        private AllocatorManager.AllocatorHandle allocator;
 
         public int BlockCount => blockPtrList.Length;
         public int BlockCapacity => blockPtrList.Capacity;
         public int ElementCount => elementCount;
         public int MaxElementCount => MaxElementCountPerBlock * BlockCapacity;
         public int MaxElementCountPerBlock => maxElementCountPerBlock;
+        public AllocatorManager.AllocatorHandle Allocator => allocator;
 
         public bool IsFull => elementCount == MaxElementCount;
         public bool IsEmpty => elementCount == 0;
-
-        public EntityDataBlockChain(EntityDataBlockMeta blockMeta, int maxElementCountPerBlock = 1024)
+        
+        public EntityDataBlockChain(EntityDataBlockMeta blockMeta, AllocatorManager.AllocatorHandle allocator, int maxElementCountPerBlock = 1024)
         {
             this.blockMeta = blockMeta;
             blockPtrList = default;
             this.maxElementCountPerBlock = maxElementCountPerBlock;
             elementCount = 0;
+            this.allocator = allocator;
         }
 
         public void Dispose()
@@ -48,7 +51,7 @@ namespace GameCore.TinyECS
         void AllocBlock()
         {
             var bufferSize = blockMeta.elementSize * maxElementCountPerBlock;
-            var ptr = UnsafeUtility.Malloc(bufferSize, blockMeta.elementAlign, Allocator.Persistent);
+            var ptr = AllocatorManager.Allocate(allocator, bufferSize, blockMeta.elementAlign);
 
             blockPtrList.Add((IntPtr)ptr);
         }
@@ -58,7 +61,7 @@ namespace GameCore.TinyECS
             var pBlock = (void*)blockPtrList[blockIndex];
             if (pBlock != null)
             {
-                UnsafeUtility.Free(pBlock, Allocator.Persistent);
+                AllocatorManager.Free(allocator, pBlock);
                 blockPtrList.RemoveAt(blockIndex);
             }
         }

LocalPackages/com.nimin.tinyecs/Runtime/EntityDataStruct.cs

@@ -1,9 +1,12 @@
 using System;
+using Unity.Collections;
 
 namespace GameCore.TinyECS
 {
     public interface IEntityDataStruct : IDisposable
     {
+        AllocatorManager.AllocatorHandle Allocator { get; }
+        
         void Add();
         void Remove(int index);
         

LocalPackages/com.nimin.tinyecs/Runtime/EntityDatabase.cs

@@ -14,10 +14,11 @@ namespace GameCore.TinyECS
 
         public int Count => collection.Count;
 
-        public EntityDatabase(TEnum type, TData dataStruct, int capacity = 16)
+        internal EntityDatabase(TEnum type, TData dataStruct, int initCapacity,
+            AllocatorManager.AllocatorHandle allocator)
         {
-            generator = new (type, capacity, Allocator.Persistent);
-            collection = new (type, capacity, Allocator.Persistent);
+            generator = new(type, initCapacity, allocator);
+            collection = new(type, initCapacity, allocator);
             this.dataStruct = dataStruct;
         }
 
@@ -41,7 +42,7 @@ namespace GameCore.TinyECS
             var index = collection.GetIndex(entity);
             return dataStruct.GetData<T>(index);
         }
-        
+
         public ref T GetDataRef<T>(Entity<TEnum> entity) where T : unmanaged
         {
             var index = collection.GetIndex(entity);
@@ -55,4 +56,14 @@ namespace GameCore.TinyECS
             dataStruct.Dispose();
         }
     }
+
+    public static class EntityDataBaseExtensions
+    {
+        public static EntityDatabase<TEnum, TData> CreateEntityDatabase<TEnum, TData>(this TData dataStruct, TEnum type, int initCapacity)
+            where TEnum : unmanaged, IConvertible
+            where TData : unmanaged, IEntityDataStruct
+        {
+            return new EntityDatabase<TEnum, TData>(type, dataStruct, initCapacity, dataStruct.Allocator);
+        }
+    }
 }

LocalPackages/com.nimin.tinyecs/Runtime/EntityGenerator.cs

@@ -7,12 +7,12 @@ namespace GameCore.TinyECS
     public struct EntityGenerator<TEnum> : IDisposable
         where TEnum : unmanaged, IConvertible
     {
+        public readonly TEnum entityType;
         private NativeList<int> indexToGeneration;
         private int beginSearchIndex;
         private int freeCount;
-        private TEnum entityType;
 
-        public EntityGenerator(TEnum type, int capacity, Allocator allocator)
+        public EntityGenerator(TEnum type, int capacity, AllocatorManager.AllocatorHandle allocator)
         {
             indexToGeneration = new(capacity, allocator) { 0 };
             beginSearchIndex = 1;

UnityECS.sln.DotSettings.user

@@ -1,5 +1,7 @@
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+	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003ABurstCompilerService_002Ecs_002Fl_003AC_0021_003FUsers_003Fsunqinzhe_003FAppData_003FRoaming_003FJetBrains_003FRider2024_002E3_003Fresharper_002Dhost_003FDecompilerCache_003Fdecompiler_003F37cc348edc804f4cb176b63962c716e7177200_003F87_003F6fa23538_003FBurstCompilerService_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
 	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AJobsUtility_002Ecs_002Fl_003AC_0021_003FUsers_003Fsunqinzhe_003FAppData_003FRoaming_003FJetBrains_003FRider2024_002E3_003Fresharper_002Dhost_003FDecompilerCache_003Fdecompiler_003F37cc348edc804f4cb176b63962c716e7177200_003F4c_003Fe16da97b_003FJobsUtility_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
+	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003ANativeArrayOptions_002Ecs_002Fl_003AC_0021_003FUsers_003Fsunqinzhe_003FAppData_003FRoaming_003FJetBrains_003FRider2024_002E3_003Fresharper_002Dhost_003FDecompilerCache_003Fdecompiler_003F37cc348edc804f4cb176b63962c716e7177200_003Fdb_003F0b3876fe_003FNativeArrayOptions_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
 	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003ASystem_002Ecs_002Fl_003AC_0021_003FUsers_003Fsunqinzhe_003FAppData_003FRoaming_003FJetBrains_003FRider2024_002E3_003Fresharper_002Dhost_003FSourcesCache_003F3ea01e77be99618395f448b16bd7cc2bd4248bd9e5d8474964b2d97f39c5d74_003FSystem_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
 	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AUnsafeUtility_002Ecs_002Fl_003AC_0021_003FUsers_003Fsunqinzhe_003FAppData_003FRoaming_003FJetBrains_003FRider2024_002E3_003Fresharper_002Dhost_003FDecompilerCache_003Fdecompiler_003F37cc348edc804f4cb176b63962c716e7177200_003F8b_003F35bd5f7e_003FUnsafeUtility_002Ecs/@EntryIndexedValue">ForceIncluded</s:String></wpf:ResourceDictionary>