stash/ not work

src/Collections/EcsGraph.cs

@@ -169,9 +169,10 @@ namespace DCFApixels.DragonECS
         }
         public void Del(int relEntityID)
         {
-            var (startEntityID, _) = _source.GetRelationInfo(relEntityID);
+            var (startEntityID, endEntityID) = _source.GetRelationInfo(relEntityID);
             ref RelNodesInfo relInfo = ref _relNodesMapping[relEntityID];
-            _startBaskets.RemoveFromBasket(startEntityID, relInfo.startNodeIndex);
+            _startBaskets.RemoveNextNodeFromBasket(startEntityID, relInfo.startNodeIndex);
+            _endBaskets.RemoveNextNodeFromBasket(endEntityID, relInfo.endNodeIndex);
         }
         public void DelStart(int startEntityID)
         {
@@ -179,7 +180,7 @@ namespace DCFApixels.DragonECS
             {
                 var endEntityID = _source.GetRelEnd(relEntityID);
                 ref RelNodesInfo relInfo = ref _relNodesMapping[relEntityID];
-                _endBaskets.RemoveFromBasket(endEntityID, relInfo.startNodeIndex);
+                _endBaskets.RemoveNextNodeFromBasket(endEntityID, relInfo.startNodeIndex);
             }
             _startBaskets.RemoveBasket(startEntityID);
         }
@@ -189,7 +190,7 @@ namespace DCFApixels.DragonECS
             {
                 var startEntityID = _source.GetRelStart(relEntityID);
                 ref RelNodesInfo relInfo = ref _relNodesMapping[relEntityID];
-                _startBaskets.RemoveFromBasket(startEntityID, relInfo.endNodeIndex);
+                _startBaskets.RemoveNextNodeFromBasket(startEntityID, relInfo.endNodeIndex);
             }
             _endBaskets.RemoveBasket(endEntityID);
         }
@@ -198,7 +199,6 @@ namespace DCFApixels.DragonECS
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         private void DelStartAndDelRelEntities(int startEntityID, EcsArc arc)
         {
-
             foreach (var relEntityID in _startBaskets.GetBasketIterator(startEntityID))
             {
                 arc.ArcWorld.TryDelEntity(relEntityID);
@@ -214,25 +214,29 @@ namespace DCFApixels.DragonECS
         }
         public struct FriendEcsArc
         {
-            private EcsGraph _join;
+            public readonly EcsGraph join;
             public FriendEcsArc(EcsArc arc, EcsGraph join)
             {
                 if (arc.IsInit_Internal != false)
                 {
                     Throw.UndefinedException();
                 }
-                _join = join;
+                if(join == null)
+                {
+                    Throw.ArgumentNull();
+                }
+                this.join = join;
             }
 
             [MethodImpl(MethodImplOptions.AggressiveInlining)]
             public void DelStartAndDelRelEntities(int startEntityID, EcsArc arc)
             {
-                _join.DelStartAndDelRelEntities(startEntityID, arc);
+                join.DelStartAndDelRelEntities(startEntityID, arc);
             }
             [MethodImpl(MethodImplOptions.AggressiveInlining)]
             public void DelEndAndDelRelEntities(int endEntityID, EcsArc arc)
             {
-                _join.DelEndAndDelRelEntities(endEntityID, arc);
+                join.DelEndAndDelRelEntities(endEntityID, arc);
             }
         }
         #endregion
@@ -244,11 +248,11 @@ namespace DCFApixels.DragonECS
         }
         public bool HasStart(int startEntityID)
         {
-            return _startBaskets.GetBasketNodesCount(startEntityID) > 0;
+            return _startBaskets.HasBasket(startEntityID);
         }
         public bool HasEnd(int endEntityID)
         {
-            return _endBaskets.GetBasketNodesCount(endEntityID) > 0;
+            return _endBaskets.HasBasket(endEntityID);
         }
         #endregion
 

src/Utils/ArrayUtility.cs

@@ -104,17 +104,31 @@ namespace DCFApixels.DragonECS.Relations.Internal
     }
     internal static unsafe class UnmanagedArrayUtility
     {
+        public static readonly int PtrSize = sizeof(IntPtr);
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T** NewPointersArray<T>(int capacity) where T : unmanaged
+        {
+            return (T**)Marshal.AllocHGlobal(capacity * PtrSize).ToPointer();
+        }
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static T* New<T>(int capacity) where T : unmanaged
         {
             return (T*)Marshal.AllocHGlobal(Marshal.SizeOf<T>() * capacity).ToPointer();
         }
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static void New<T>(out T* ptr, int capacity) where T : unmanaged
+        public static T** NewAndInitPointersArray<T>(int capacity) where T : unmanaged
         {
-            ptr = (T*)Marshal.AllocHGlobal(Marshal.SizeOf<T>(default) * capacity).ToPointer();
+            int newSize = PtrSize * capacity;
-        }
+            T** newPointer = (T**)Marshal.AllocHGlobal(newSize).ToPointer();
 
+            for (int i = 0; i < newSize; i++)
+            {
+                *(newPointer + i) = null;
+            }
+
+            return newPointer;
+        }
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static T* NewAndInit<T>(int capacity) where T : unmanaged
         {
@@ -122,21 +136,13 @@ namespace DCFApixels.DragonECS.Relations.Internal
             byte* newPointer = (byte*)Marshal.AllocHGlobal(newSize).ToPointer();
 
             for (int i = 0; i < newSize; i++)
+            {
                 *(newPointer + i) = 0;
+            }
 
             return (T*)newPointer;
         }
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static void NewAndInit<T>(out T* ptr, int capacity) where T : unmanaged
-        {
-            int newSize = Marshal.SizeOf(typeof(T)) * capacity;
-            byte* newPointer = (byte*)Marshal.AllocHGlobal(newSize).ToPointer();
 
-            for (int i = 0; i < newSize; i++)
-                *(newPointer + i) = 0;
-
-            ptr = (T*)newPointer;
-        }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static void Free(void* pointer)
@@ -144,6 +150,13 @@ namespace DCFApixels.DragonECS.Relations.Internal
             Marshal.FreeHGlobal(new IntPtr(pointer));
         }
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void FreePointersArray<T>(ref T** pointer, ref int length) where T : unmanaged
+        {
+            Marshal.FreeHGlobal(new IntPtr(pointer));
+            pointer = null;
+            length = 0;
+        }
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static void Free<T>(ref T* pointer, ref int length) where T : unmanaged
         {
             Marshal.FreeHGlobal(new IntPtr(pointer));
@@ -151,6 +164,16 @@ namespace DCFApixels.DragonECS.Relations.Internal
             length = 0;
         }
 
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T** ClonePointersArray<T>(T** sourcePtr, int length) where T : unmanaged
+        {
+            T** clone = NewPointersArray<T>(length);
+            for (int i = 0; i < length; i++)
+            {
+                clone[i] = sourcePtr[i];
+            }
+            return clone;
+        }
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static T* Clone<T>(T* sourcePtr, int length) where T : unmanaged
         {
@@ -162,6 +185,13 @@ namespace DCFApixels.DragonECS.Relations.Internal
             return clone;
         }
 
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T** ResizePointersArray<T>(T** oldPointer, int newCount) where T : unmanaged
+        {
+            return (T**)Marshal.ReAllocHGlobal(
+                new IntPtr(oldPointer),
+                new IntPtr(PtrSize * newCount)).ToPointer();
+        }
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static T* Resize<T>(void* oldPointer, int newCount) where T : unmanaged
         {
@@ -170,6 +200,30 @@ namespace DCFApixels.DragonECS.Relations.Internal
                 new IntPtr(Marshal.SizeOf<T>(default) * newCount)).ToPointer();
         }
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T** ResizeAndInitPointersArray<T>(T** oldPointer, int oldSize, int newSize) where T : unmanaged
+        {
+            int newByteSize = PtrSize * newSize;
+            T** result = (T**)Marshal.ReAllocHGlobal((IntPtr)(oldPointer), newByteSize);
+
+            for (int i = oldSize; i < newSize; i++)
+            {
+                result[i] = null;
+            }
+            return result;
+        }
+        //[MethodImpl(MethodImplOptions.AggressiveInlining)]
+        //public static void* ResizeAndInitPointersArray(void* oldPointer, int oldSize, int newSize)
+        //{
+        //    int newByteSize = PtrSize * newSize;
+        //    void** result = (void**)Marshal.ReAllocHGlobal((IntPtr)(oldPointer), newByteSize);
+        //
+        //    for (int i = oldSize; i < newSize; i++)
+        //    {
+        //        result[i] = null;
+        //    }
+        //    return result;
+        //}
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static T* ResizeAndInit<T>(void* oldPointer, int oldSize, int newSize) where T : unmanaged
         {
             int sizeT = Marshal.SizeOf<T>(default);
@@ -180,6 +234,8 @@ namespace DCFApixels.DragonECS.Relations.Internal
             return result;
         }
 
+
+
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         private static void Init(byte* pointer, int startByteIndex, int endByteIndex)
         {

src/Utils/BasketList.cs

@@ -1,21 +1,22 @@
-using System;
+using DCFApixels.DragonECS.Relations.Internal;
+using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.Linq;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
 namespace DCFApixels.DragonECS
 {
     [DebuggerTypeProxy(typeof(DebuggerProxy))]
-    internal class BasketList
+    internal unsafe class BasketList
     {
-        public const int RECYCLE = -1;
+        public const int NULL = 0;
-        public const int HEAD = 0;
 
-        private BasketInfo[] _baskets = new BasketInfo[64];
+        private UnsafePointersArray<BasketNode> _basketNodePointers;
-        private Node[] _nodes;
+        private UnsafeArray<Node> _nodes;
-        private int _recycledListLast = -1;
+        private int _recycledListHead = NULL;
 
         #region Constructors
         public BasketList() : this(16) { }
@@ -32,18 +33,28 @@ namespace DCFApixels.DragonECS
             {
                 _nodes[i].next = 0;
             }
-            for (int i = 0; i < _baskets.Length; i++)
+            for (int i = 0; i < _basketNodePointers.Length; i++)
             {
-                _baskets[i] = default;
+                _basketNodePointers[i] = BasketNode.EmptyInstancePtr;
             }
         }
 
         [MethodImpl(MethodImplOptions.NoInlining)]
-        private void Resize(int newSize)
+        private void ResizeNodes(int newSize)
         {
             int oldSize = _nodes.Length;
-            Array.Resize(ref _nodes, newSize);
+            IntPtr offset = (IntPtr)_nodes.ptr;
-            int leftNode = newSize - 1;
+            UnsafeArray.Resize(ref _nodes, newSize);
+            offset = ((IntPtr)_nodes.ptr - offset) / 8;
+
+            for (int i = 0; i < _basketNodePointers.Length; i++)
+            {
+                if (_basketNodePointers[i] != BasketNode.EmptyInstancePtr)
+                {
+                    _basketNodePointers.ptr[i] += offset;
+                }
+            }
+            int leftNode = NULL;
             for (int i = oldSize; i < newSize; i++)
             {
                 Link(i, leftNode);
@@ -54,8 +65,13 @@ namespace DCFApixels.DragonECS
         [MethodImpl(MethodImplOptions.NoInlining)]
         private void Initialize(int newSize)
         {
-            _nodes = new Node[newSize];
+            _basketNodePointers = new UnsafePointersArray<BasketNode>(64);
-            int leftNode = newSize - 1;
+            for (int i = 0; i < 64; i++)
+            {
+                _basketNodePointers[i] = BasketNode.EmptyInstancePtr;
+            }
+            _nodes = new UnsafeArray<Node>(newSize, true);
+            int leftNode = NULL;
             for (int i = 1; i < newSize; i++)
             {
                 Link(i, leftNode);
@@ -64,10 +80,14 @@ namespace DCFApixels.DragonECS
             LinkToRecycled(newSize - 1, 1);
         }
 
+        //[MethodImpl(MethodImplOptions.AggressiveInlining)]
+        //public int GetBasketNodesCount(int basketIndex)
+        //{
+        //}
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public int GetBasketNodesCount(int basketIndex)
+        public bool HasBasket(int basketIndex)
         {
-            return _baskets[basketIndex].count;
+            return _basketNodePointers[basketIndex] != BasketNode.EmptyInstancePtr;
         }
 
 
@@ -89,188 +109,210 @@ namespace DCFApixels.DragonECS
 
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public void RemoveFromBasket(int basketIndex, int nodeIndex)
+        public void RemoveNextNodeFromBasket(int basketIndex, int prevNodeIndex) // +
         {
 #if DEBUG
-            if (nodeIndex <= 0)
+            if (prevNodeIndex <= 0)
             {
                 //Throw.ArgumentOutOfRange();
                 return;
             }
 #endif
-            ref BasketInfo basketInfo = ref _baskets[basketIndex];
+            ref BasketNode* basketNode = ref _basketNodePointers[basketIndex];
-
+            if (basketNode == BasketNode.EmptyInstancePtr)
-            ref var node = ref _nodes[nodeIndex];
-            int nextNode = node.next;
-
-            Link(node.prev, nextNode);
-            LinkToRecycled(nodeIndex, nodeIndex);
-            if (basketInfo.nodeIndex == nodeIndex)
             {
-                basketInfo.nodeIndex = nextNode;
+                //Поидее тут не должно быть пусто
+                Throw.UndefinedException();
+            }
+
+            int targetNodeIndex = _nodes[prevNodeIndex].next;
+            int nextNodeIndex = _nodes[targetNodeIndex].next;
+
+            if(targetNodeIndex == 15)
+            {
+
+            }
+
+            Link(prevNodeIndex, nextNodeIndex);
+            LinkToRecycled(targetNodeIndex);
+
+            if (basketNode->nodeIndex == targetNodeIndex)
+            {
+                basketNode->nodeIndex = nextNodeIndex;
+            }
+            if (--basketNode->count <= 0)
+            {
+                LinkToRecycled(prevNodeIndex);
+                basketNode = BasketNode.EmptyInstancePtr;
             }
-            basketInfo.count--;
         }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public int AddToBasket(int basketIndex, int value)
+        private void CreateBasket(ref BasketNode* toPointer) // +
         {
-            ref BasketInfo basketInfo = ref _baskets[basketIndex];
+            toPointer = (BasketNode*)TakeRecycledNodePtr();
+            *toPointer = BasketNode.Empty;
+        }
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public int AddToBasket(int basketIndex, int value) // +
+        {
+            ref BasketNode* basketNode = ref _basketNodePointers[basketIndex];
+            int prevNodeIndex;
             int newNodeIndex = TakeRecycledNode();
-            if (basketInfo.count == 0)
+            if (basketNode == BasketNode.EmptyInstancePtr)
             {
-                //_nodes[newNodeIndex].Set(value, 0, 0);
+                CreateBasket(ref basketNode);
+                prevNodeIndex = (int)((Node*)basketNode - _nodes.ptr);
                 _nodes[newNodeIndex].value = value;
             }
             else
             {
-                //    int nextNodeIndex = basketInfo.nodeIndex;
+                _nodes[newNodeIndex].Set(value, basketNode->nodeIndex);
-                //    //_nodes[newNodeIndex].Set(value, 0, nextNodeIndex);
+                prevNodeIndex = basketNode->nodeIndex;
-                //    _nodes[newNodeIndex].Set_Value_Next(value, nextNodeIndex);
-                //    //_nodes[nextNodeIndex].prev = newNodeIndex;
-                _nodes[newNodeIndex].Set_Value_Next(value, basketInfo.nodeIndex);
             }
-            basketInfo.nodeIndex = newNodeIndex;
+            basketNode->nodeIndex = newNodeIndex;
-            basketInfo.count++;
+            basketNode->count++;
-            return newNodeIndex;
+            return prevNodeIndex;
         }
 
-
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private int TakeRecycledNode()
+        private Node* TakeRecycledNodePtr() // +
         {
-            if (_recycledListLast == -1)
+            if (_recycledListHead == NULL)
             {
-                Resize(_nodes.Length << 1);
+                ResizeNodes(_nodes.Length << 1);
             }
-            int resultNode = _recycledListLast;
+            Node* resultNode = _nodes.ptr + _recycledListHead;
-            _recycledListLast = _nodes[resultNode].prev;
+            _recycledListHead = resultNode->next;
+            resultNode->next = 0;
             return resultNode;
         }
-        //[MethodImpl(MethodImplOptions.AggressiveInlining)]
-        //private void Separate(int leftNodeIndex, int rightNodeIndex)
-        //{
-        //    _nodes[rightNodeIndex].prev = 0;
-        //    _nodes[leftNodeIndex].next = 0;
-        //}
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private void Link(int leftNodeIndex, int rightNodeIndex)
+        private int TakeRecycledNode() // +
+        {
+            if (_recycledListHead == NULL)
+            {
+                ResizeNodes(_nodes.Length << 1);
+            }
+            int resultNode = _recycledListHead;
+            _recycledListHead = _nodes[resultNode].next;
+            _nodes[resultNode].next = 0;
+            return resultNode;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private void Link(int leftNodeIndex, int rightNodeIndex) // +
         {
-            _nodes[rightNodeIndex].prev = leftNodeIndex;
             _nodes[leftNodeIndex].next = rightNodeIndex;
         }
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private void LinkToRecycled(int startNodeIndex, int endNodeIndex)
+        private void LinkToRecycled(int nodeIndex) // +
         {
-            if (_recycledListLast <= -1)
+            if(nodeIndex == 15)
             {
-                _nodes[startNodeIndex].prev = RECYCLE;
+
+            }
+            if (_recycledListHead >= 0)
+            {
+                _nodes[nodeIndex].next = _recycledListHead;
             }
             else
             {
-                Link(_recycledListLast, startNodeIndex);
+                _nodes[nodeIndex].next = 0;
             }
-            _recycledListLast = endNodeIndex;
+            _recycledListHead = nodeIndex;
+
+            int i = 0;
+            int cureNodeIndex = _recycledListHead;
+            while (cureNodeIndex != NULL)
+            {
+                int nextNodeIndex = _nodes[cureNodeIndex].next;
+                if (i > _nodes.Length)
+                {
+                    Console.WriteLine("WTF");
+                }
+                cureNodeIndex = nextNodeIndex;
+                i++;
+            }
+        }
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private void LinkToRecycled(int startNodeIndex, int endNodeIndex) // +
+        {
+            if (_recycledListHead >= 0)
+            {
+                _nodes[endNodeIndex].next = _recycledListHead;
+            }
+            _recycledListHead = startNodeIndex;
         }
 
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public void RemoveBasket(int basketIndex)
+        public void RemoveBasket(int basketIndex) // +
         {
-            ref BasketInfo basket = ref _baskets[basketIndex];
+            ref BasketNode* basketNode = ref _basketNodePointers[basketIndex];
+            if (basketNode == null) { Throw.UndefinedException(); }
 
-            int startNodeIndex = basket.nodeIndex;
+            int startBasketNodeIndex = (int)(basketNode - (BasketNode*)_nodes.ptr);
-            int endNodeIndex = startNodeIndex;
+
-            ref Node startNode = ref _nodes[startNodeIndex];
+            int endNodeIndex = startBasketNodeIndex;
-            for (int i = 0, n = basket.count; i < n; i++)
+            for (int i = 0, n = basketNode->count; i < n; i++)
             {
                 endNodeIndex = _nodes[endNodeIndex].next;
             }
-            ref Node endNode = ref _nodes[endNodeIndex];
+            LinkToRecycled(startBasketNodeIndex, endNodeIndex);
-
+            basketNode = BasketNode.EmptyInstancePtr;
-            LinkToRecycled(startNodeIndex, endNodeIndex);
-            Link(startNode.prev, endNode.next);
-
-            basket.count = 0;
         }
 
         [MethodImpl(MethodImplOptions.NoInlining)]
         public void UpBasketsSize(int minSize)
         {
-            if (minSize > _baskets.Length)
+            if (minSize > _basketNodePointers.Length)
             {
-                int newSize = 1 << (GetHighBitNumber((uint)minSize - 1) + 1);
+                int newSize = ArrayUtility.NormalizeSizeToPowerOfTwo(minSize);
-                Array.Resize(ref _baskets, newSize);
+                int oldSize = _basketNodePointers.Length;
+                UnsafePointersArray.Resize(ref _basketNodePointers, newSize);
+                for (int i = oldSize; i < newSize; i++)
+                {
+                    _basketNodePointers[i] = BasketNode.EmptyInstancePtr;
+                }
             }
         }
-        private static int GetHighBitNumber(uint bits)
+
-        {
-            if (bits == 0)
-            {
-                return -1;
-            }
-            int bit = 0;
-            if ((bits & 0xFFFF0000) != 0)
-            {
-                bits >>= 16;
-                bit |= 16;
-            }
-            if ((bits & 0xFF00) != 0)
-            {
-                bits >>= 8;
-                bit |= 8;
-            }
-            if ((bits & 0xF0) != 0)
-            {
-                bits >>= 4;
-                bit |= 4;
-            }
-            if ((bits & 0xC) != 0)
-            {
-                bits >>= 2;
-                bit |= 2;
-            }
-            if ((bits & 0x2) != 0)
-            {
-                bit |= 1;
-            }
-            return bit;
-        }
 
         #region Node
         [StructLayout(LayoutKind.Sequential, Pack = 4, Size = 8)]
         public struct Node
         {
-            public static readonly Node Empty = new Node() { value = 0, next = -1 };
+            public static readonly Node Empty = new Node() { value = 0, next = NULL };
             public int value;
             /// <summary>next node index</summary>
             public int next;
-            /// <summary>prev node index</summary>
-            public int prev;
             [MethodImpl(MethodImplOptions.AggressiveInlining)]
-            public void Set(int value, int prev, int next)
+            public void Set(int value, int next)
-            {
-                this.value = value;
-                this.next = next;
-                this.prev = prev;
-            }
-            [MethodImpl(MethodImplOptions.AggressiveInlining)]
-            public void Set_Value_Next(int value, int next)
             {
                 this.value = value;
                 this.next = next;
             }
-            public override string ToString() => $"node({prev}<>{next} v:{value})";
+            public override string ToString() => $"node(>{next} v:{value})";
         }
         #endregion
-
         #region BasketInfo
-        private struct BasketInfo
+        [StructLayout(LayoutKind.Sequential, Pack = 4, Size = 8)]
+        private struct BasketNode
         {
-            public static readonly BasketInfo Empty = new BasketInfo() { nodeIndex = 0, count = 0, };
+            public static readonly BasketNode Empty = new BasketNode() { nodeIndex = 0, count = 0, };
-            public int nodeIndex;
+            public static BasketNode* EmptyInstancePtr;
+            static BasketNode()
+            {
+                void* ptr = (void*)Marshal.AllocHGlobal(Marshal.SizeOf<BasketNode>(default));
+                EmptyInstancePtr = (BasketNode*)ptr;
+                *EmptyInstancePtr = default;
+            }
             public int count;
+            public int nodeIndex;
             public override string ToString() => $"basket_info(i:{nodeIndex} c:{count})";
+
+            private static BasketNode* EmptyInstancePtr_Debug => EmptyInstancePtr;
         }
         #endregion
 
@@ -291,7 +333,7 @@ namespace DCFApixels.DragonECS
             private readonly int _basketIndex;
             public int Count
             {
-                get { return _basketList._baskets[_basketIndex].count; }
+                get { return _basketList._basketNodePointers[_basketIndex]->count; }
             }
 
             [MethodImpl(MethodImplOptions.AggressiveInlining)]
@@ -307,18 +349,19 @@ namespace DCFApixels.DragonECS
             IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
             public struct Enumerator : IEnumerator<int>
             {
-                private readonly Node[] _nodes;
+                private readonly UnsafeArray<Node> _nodes;
                 private int _nodeIndex;
                 private int _nextNodeIndex;
                 private int _count;
                 [MethodImpl(MethodImplOptions.AggressiveInlining)]
                 public Enumerator(BasketIterator iterator)
                 {
-                    ref BasketInfo basketInfo = ref iterator._basketList._baskets[iterator._basketIndex];
+                    BasketNode* basketNode = iterator._basketList._basketNodePointers[iterator._basketIndex];
+
                     _nodes = iterator._basketList._nodes;
                     _nodeIndex = -1;
-                    _nextNodeIndex = basketInfo.nodeIndex;
+                    _nextNodeIndex = basketNode->nodeIndex;
-                    _count = basketInfo.count;
+                    _count = basketNode->count;
                 }
                 public int Current
                 {
@@ -351,33 +394,40 @@ namespace DCFApixels.DragonECS
                 get
                 {
                     List<BasketIteratorDebbugerProxy> result = new List<BasketIteratorDebbugerProxy>();
-                    for (int i = 0; i < _basketList._baskets.Length; i++)
+                    for (int i = 0; i < _basketList._basketNodePointers.Length; i++)
                     {
-                        if (_basketList._baskets[i].count > 0)
+                        if (_basketList._basketNodePointers[i] != BasketNode.EmptyInstancePtr)
                         {
-                            result.Add(new BasketIteratorDebbugerProxy(_basketList[i]));
+                            result.Add(new BasketIteratorDebbugerProxy(i, _basketList[i]));
                         }
                     }
                     return result;
                 }
             }
+
+            public int RecycledListHead => _basketList._recycledListHead;
             public IEnumerable<Node> Recycled
             {
                 get
                 {
                     List<Node> result = new List<Node>();
                     Node curNode = new Node();
-                    curNode.index = _basketList._recycledListLast;
+                    curNode.index = _basketList._recycledListHead;
 
-                    while (curNode.index != -1)
+                    int i = 0;
+                    while (curNode.index != NULL)
                     {
                         BasketList.Node x = _basketList.GetNode(curNode.index);
-                        curNode.prev = x.prev;
                         curNode.next = x.next;
 
                         result.Add(curNode);
-                        curNode = new Node();
+                        if (i++ > _basketList._nodes.Length)
-                        curNode.index = curNode.prev;
+                        {
+                            result.Add(new Node(int.MinValue, int.MinValue, int.MinValue));
+                            break;
+                        }
+
+                        curNode.index = curNode.next;
                     }
                     return result;
                 }
@@ -390,51 +440,97 @@ namespace DCFApixels.DragonECS
 
                     for (int i = 0; i < _basketList._nodes.Length; i++)
                     {
-                        result.Add(new Node(_basketList._nodes[i].prev, i, _basketList._nodes[i].next));
+                        result.Add(new Node(i, _basketList._nodes[i].value, _basketList._nodes[i].next));
                     }
                     return result;
                 }
             }
+            public Node[][] Chains
+            {
+                get
+                {
+                    //bool IsChainLoop(int checkedNodeIndex)
+                    //{
+                    //    bool result = false;
+                    //    int currentCheckedNodeIndex = checkedNodeIndex;
+                    //    for (int i = 0; i <= _basketList._nodes.Length; i++)
+                    //    {
+                    //        if (currentCheckedNodeIndex == 0)
+                    //        {
+                    //            result = true;
+                    //        }
+                    //        currentCheckedNodeIndex = _basketList._nodes[currentCheckedNodeIndex].next;
+                    //    }
+                    //    return result;
+                    //}
+                    List<Stack<int>> chains = new List<Stack<int>>();
+                    for (int i = 1; i < _basketList._nodes.Length; i++)
+                    {
+                        if (_basketList._nodes[i].next == 0)
+                        {
+                            Stack<int> chain = new Stack<int>();
+                            int lastNext = i;
+                            chain.Push(lastNext);
+
+                            for (int queueX = 1; queueX < _basketList._nodes.Length; queueX++)
+                            {
+                                for (int j = 1; j < _basketList._nodes.Length; j++)
+                                {
+                                    var nodeJ = _basketList._nodes[j];
+                                    if(nodeJ.next == lastNext)
+                                    {
+                                        lastNext = j;
+                                        chain.Push(lastNext);
+                                    }
+                                }
+                            }
+                            chains.Add(chain);
+                        }
+                    }
+                    var nodes = _basketList._nodes;
+                    return chains.Select(
+                        o => o.Select(o => new Node(o, nodes[o].value, nodes[o].next)).ToArray()
+                        ).ToArray();
+                }
+            }
             public DebuggerProxy(BasketList basketList)
             {
                 _basketList = basketList;
             }
             public struct Node
             {
-                public int prev;
                 public int index;
+                public int value;
                 public int next;
-                public Node(int prev, int index, int next)
+                public Node(int index, int value, int next)
                 {
-                    this.prev = prev;
                     this.index = index;
+                    this.value = value;
                     this.next = next;
                 }
-                public override string ToString() => $"node({prev}< {index} >{next})";
+                public override string ToString() => $"[{index}]          {value}          >{next}";
             }
             public struct BasketIteratorDebbugerProxy
             {
+                public int index;
                 private BasketIterator _iterrator;
                 public int Count => _iterrator.Count;
                 public IEnumerable<int> RelEntities
                 {
                     get
                     {
-                        List<int> result = new List<int>();
+                        List<int> result = new List<int>(_iterrator);
-                        foreach (var e in _iterrator)
-                        {
-                            result.Add(e);
-                        }
                         return result;
                     }
                 }
-                public BasketIteratorDebbugerProxy(BasketIterator iterrator)
+                public BasketIteratorDebbugerProxy(int index, BasketIterator iterrator)
                 {
+                    this.index = index;
                     _iterrator = iterrator;
                 }
                 public override string ToString()
                 {
-                    return $"count: {_iterrator.Count}";
+                    return $"[{index}] count: {_iterrator.Count}";
                 }
             }
         }

src/Utils/UnsafeArray.cs

@@ -5,6 +5,7 @@ using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
 using System.Runtime.CompilerServices;
+using static System.Runtime.InteropServices.JavaScript.JSType;
 
 namespace DCFApixels.DragonECS.Relations.Internal
 {
@@ -32,19 +33,27 @@ namespace DCFApixels.DragonECS.Relations.Internal
 
         public ref T this[int index]
         {
-            get { return ref ptr[index]; }
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            get
+            {
+#if DEBUG
+                if (index < 0 || index >= Length)
+                    Throw.ArgumentOutOfRange();
+#endif
+                return ref ptr[index];
+            }
         }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public UnsafeArray(int length)
         {
-            UnmanagedArrayUtility.New(out ptr, length);
+            ptr = UnmanagedArrayUtility.New<T>(length);
             Length = length;
         }
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public UnsafeArray(int length, bool isInit)
         {
-            UnmanagedArrayUtility.NewAndInit(out ptr, length);
+            ptr = UnmanagedArrayUtility.NewAndInit<T>(length);
             Length = length;
         }
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
@@ -67,8 +76,7 @@ namespace DCFApixels.DragonECS.Relations.Internal
         }
         public override string ToString()
         {
-            T* ptr = this.ptr;
+            return $"ua({Length}) ({string.Join(", ", this.ToArray())})";
-            return CollectionUtility.AutoToString(EnumerableInt.Range(0, Length).Select(i => ptr[i]), "ua");
         }
 
         public static void Resize(ref UnsafeArray<T> array, int newSize)
@@ -113,12 +121,18 @@ namespace DCFApixels.DragonECS.Relations.Internal
 
         internal class DebuggerProxy
         {
+            public void* ptr;
             public T[] elements;
             public int length;
             public DebuggerProxy(UnsafeArray<T> instance)
             {
-                elements = EnumerableInt.Range(0, instance.Length).Select(i => instance.ptr[i]).ToArray();
+                ptr = instance.ptr;
                 length = instance.Length;
+                elements = new T[length];
+                for (int i = 0; i < length; i++)
+                {
+                    elements[i] = instance[i];
+                }
             }
         }
     }

src/Utils/UnsafePointersArray.cs

@@ -0,0 +1,118 @@
+using System;
+using System.Diagnostics;
+using System.Runtime.CompilerServices;
+
+namespace DCFApixels.DragonECS.Relations.Internal
+{
+    internal unsafe static class UnsafePointersArray
+    {
+        public static void Resize<T>(ref UnsafePointersArray<T> array, int newSize)
+            where T : unmanaged
+        {
+            array.ptr = (T**)UnmanagedArrayUtility.Resize<IntPtr>(array.ptr, newSize);
+            array.Length = newSize;
+        }
+        public static void ResizeAndInit<T>(ref UnsafePointersArray<T> array, int newSize)
+            where T : unmanaged
+        {
+            array.ptr = (T**)UnmanagedArrayUtility.ResizeAndInit<IntPtr>(array.ptr, array.Length, newSize);
+            array.Length = newSize;
+        }
+    }
+
+    [DebuggerTypeProxy(typeof(UnsafePointersArray<>.DebuggerProxy))]
+    internal unsafe struct UnsafePointersArray<T> : IDisposable
+        where T : unmanaged
+    {
+        internal T** ptr;
+        internal int Length;
+
+        public ref T* this[int index]
+        {
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            get
+            {
+#if DEBUG
+                if (index < 0 || index >= Length)
+                    Throw.ArgumentOutOfRange();
+#endif
+                return ref ptr[index];
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public UnsafePointersArray(int length)
+        {
+            ptr = (T**)UnmanagedArrayUtility.New<IntPtr>(length);
+            Length = length;
+        }
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public UnsafePointersArray(int length, bool isInit)
+        {
+            ptr = (T**)UnmanagedArrayUtility.NewAndInit<IntPtr>(length);
+            Length = length;
+        }
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private UnsafePointersArray(T** ptr, int length)
+        {
+            this.ptr = ptr;
+            Length = length;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public UnsafePointersArray<T> Clone()
+        {
+            return new UnsafePointersArray<T>(UnmanagedArrayUtility.ClonePointersArray(ptr, Length), Length);
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void Dispose()
+        {
+            UnmanagedArrayUtility.FreePointersArray(ref ptr, ref Length);
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public Enumerator GetEnumerator() => new Enumerator(ptr, Length);
+        public struct Enumerator
+        {
+            private readonly T** _ptr;
+            private readonly int _length;
+            private int _index;
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            public Enumerator(T** ptr, int length)
+            {
+                _ptr = ptr;
+                _length = length;
+                _index = -1;
+            }
+            public T* Current
+            {
+                [MethodImpl(MethodImplOptions.AggressiveInlining)]
+                get => _ptr[_index];
+            }
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            public bool MoveNext() => ++_index < _length;
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            public void Reset() { }
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            public void Dispose() { }
+        }
+
+        internal class DebuggerProxy
+        {
+            public void* ptr;
+            public T*[] elements;
+            public int length;
+            public DebuggerProxy(UnsafePointersArray<T> instance)
+            {
+                ptr = instance.ptr;
+                length = instance.Length;
+                elements = new T*[length];
+                for (int i = 0; i < length; i++)
+                {
+                    elements[i] = instance[i];
+                }
+            }
+        }
+    }
+}