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similarity index 80%
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diff --git a/源代码/.vs/StgSharp/v17/.futdcache.v2 b/源代码/.vs/StgSharp/v17/.futdcache.v2
index 2a0bdc94..4db0da8a 100644
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diff --git a/源代码/.vs/StgSharp/v17/.suo b/源代码/.vs/StgSharp/v17/.suo
index d9c932a1..30802d03 100644
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diff --git a/源代码/StgSharp/Control/Add.cs b/源代码/StgSharp/Control/Add.cs
index fdffd938..045339d3 100644
--- a/源代码/StgSharp/Control/Add.cs
+++ b/源代码/StgSharp/Control/Add.cs
@@ -1,4 +1,5 @@
 using GLFWDotNet;
+using StgSharp.Geometries;
 using System;
 using System.Collections.Generic;
 using System.Text;
@@ -7,6 +8,9 @@ namespace StgSharp.Control
 {
     public static class Add
     {
+        public static void GeometryCombination(IGeometryCombination geometry)
+        {
 
+        }
     }
 }
diff --git a/源代码/StgSharp/Control/BlockOperation.cs b/源代码/StgSharp/Control/BlockOperation.cs
new file mode 100644
index 00000000..4f789d75
--- /dev/null
+++ b/源代码/StgSharp/Control/BlockOperation.cs
@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StgSharp.Control
+{
+    public abstract class BlockOperation : INode<BlockOperation>
+    {
+        
+        private ContainerNode<BlockOperation> _id;
+
+
+        ContainerNode<BlockOperation> INode<BlockOperation>.ID => _id;
+
+        void INode<BlockOperation>.setID(ContainerNode<BlockOperation> id)
+        {
+            if (_id == default)
+            {
+                _id = id;
+            }
+            else
+            {
+                throw new InvalidOperationException("Cannot set ID twice!");
+            }
+        }
+
+
+        public abstract void OnUpdating();
+
+    }
+}
diff --git a/源代码/StgSharp/Control/TimeLine.cs b/源代码/StgSharp/Control/TimeLine.cs
index d8f37cff..e6bf0d1b 100644
--- a/源代码/StgSharp/Control/TimeLine.cs
+++ b/源代码/StgSharp/Control/TimeLine.cs
@@ -1,4 +1,5 @@
-using System;
+using StgSharp.Entities;
+using System;
 using System.Collections.Generic;
 using System.Text;
 
@@ -6,11 +7,28 @@ namespace StgSharp.Control
 {
     public static class TimeLine
     {
-        public static Pool _cache;
-
+        internal static Pool _currentPool;
+        public static LinkedList<Pool> allPool;
         public static Counter<uint> tickCounter 
             = new Counter<uint>(0,1,1);
+        internal static BlockOperation currentOperation;
+        private static bool isPaused;
 
+        internal static void OnRender()
+        {
+            tickCounter.QuickAdd();
+            foreach (Pool p in allPool)
+            {
+                _currentPool = p;
+                if (!isPaused)
+                {
+                    currentOperation.OnUpdating();
+                }
+                foreach (EntityPartical b in _currentPool._bulletContainer)
+                {
 
+                }
+            }
+        }
     }
 }
diff --git a/源代码/StgSharp/Entities/Entity.cs b/源代码/StgSharp/Entities/Entity.cs
index 8da84b51..046af1a4 100644
--- a/源代码/StgSharp/Entities/Entity.cs
+++ b/源代码/StgSharp/Entities/Entity.cs
@@ -59,11 +59,11 @@ namespace StgSharp
             _pos = p;
         }
 
-        void INode<Entity>.setID<T>(ContainerNode<T> id)
+        void INode<Entity>.setID(ContainerNode<Entity> id)
         {
             if (id == null)
             {
-                _id = id as ContainerNode<Entity>;
+                _id = id;
             }
             else
             {
diff --git a/源代码/StgSharp/Entities/Launcher.cs b/源代码/StgSharp/Entities/Launcher.cs
index 9d175378..e390d766 100644
--- a/源代码/StgSharp/Entities/Launcher.cs
+++ b/源代码/StgSharp/Entities/Launcher.cs
@@ -35,7 +35,7 @@ namespace StgSharp
             get { return _id; }
         }
 
-        void INode<Launcher<T>>.setID<T1>(ContainerNode<T1> id)
+        void INode<Launcher<T>>.setID(ContainerNode<Launcher<T>> id)
         {
             if (_id == default(ContainerNode<Launcher<T>>))
             {
@@ -43,7 +43,7 @@ namespace StgSharp
             }
             else
             {
-                _id = id as ContainerNode<Launcher<T>>;
+                _id = id;
             }
         }
     }
diff --git a/源代码/StgSharp/Geometries/IGeometry.cs b/源代码/StgSharp/Geometries/IGeometry.cs
index 53ae0bf5..07388cdb 100644
--- a/源代码/StgSharp/Geometries/IGeometry.cs
+++ b/源代码/StgSharp/Geometries/IGeometry.cs
@@ -27,7 +27,7 @@ namespace StgSharp
 
         ContainerNode<IGeometry> INode<IGeometry>.ID => _id;
 
-        void INode<IGeometry>.setID<T>(ContainerNode<T> id)
+        void INode<IGeometry>.setID(ContainerNode<IGeometry> id)
         {
             if (_id != default)
             {
@@ -35,7 +35,7 @@ namespace StgSharp
             }
             else
             {
-                _id = id as ContainerNode<IGeometry>;
+                _id = id;
             }
         }
 
diff --git a/源代码/StgSharp/Geometries/IGeometryCombination.cs b/源代码/StgSharp/Geometries/IGeometryCombination.cs
new file mode 100644
index 00000000..61885d1e
--- /dev/null
+++ b/源代码/StgSharp/Geometries/IGeometryCombination.cs
@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StgSharp.Geometries
+{
+    public abstract class IGeometryCombination:LinkedList<IGeometry>
+    {
+
+    }
+}
diff --git a/源代码/StgSharp/Geometries/Point.cs b/源代码/StgSharp/Geometries/Point.cs
index 21cd5443..e9f4662d 100644
--- a/源代码/StgSharp/Geometries/Point.cs
+++ b/源代码/StgSharp/Geometries/Point.cs
@@ -34,11 +34,11 @@ namespace StgSharp
             get { return this._position.Y; }
         }
 
-        void INode<Point>.setID<T>(ContainerNode<T> id)
+        void INode<Point>.setID(ContainerNode<Point> id)
         {
             if (id == null)
             {
-                _id = id as ContainerNode<Point>;
+                _id = id;
             }
             else
             {
diff --git a/源代码/StgSharp/Geometries/Rectangle.cs b/源代码/StgSharp/Geometries/Rectangle.cs
index 5f6522ce..1dea72e6 100644
--- a/源代码/StgSharp/Geometries/Rectangle.cs
+++ b/源代码/StgSharp/Geometries/Rectangle.cs
@@ -11,58 +11,58 @@ namespace StgSharp.Geometries
         internal Point _center;
         internal Point _centerToCorner1;
         internal Point _centerToCorner2;
-        internal GetLocationHandler _centerMov;
-        internal GetLocationHandler _CTC1Handler;
-        internal GetLocationHandler _CTC2Handler;
+        internal RenderMode _renderMode;
 
 
-        Point IGeometry.BasePoint
-        {
-            get { return _basePoint; }
-        }
-        Point IGeometry.RefPoint
-        {
-            get { return _center; }
-        }
+        public override sealed Point BasePoint => _basePoint;
+        public override sealed Point RefPoint=>_center;
 
-        Point IGeometry.RefVec01
-        {
-            get { return _centerToCorner1; }
-        }
+        public override sealed Point RefVec01 => _centerToCorner1;
 
-        Point IGeometry.RefVec02
-        {
-            get { return _centerToCorner2; }
-        }
+        public override sealed Point RefVec02 => _centerToCorner2;
 
+        public override RenderMode renderMode => _renderMode;
 
-        void IGeometry.OnRender()
+        internal override sealed void OnRender(uint tick)
         {
 
-            this._CTC2Handler.Invoke(_centerToCorner2._position, Control.TimeLine.tickCounter);
         }
 
-        float IGeometry.SetArrayX()
+        public override sealed float SetArrayX()
         {
             throw new NotImplementedException();
         }
 
-        float IGeometry.SetArrayY()
+        public override sealed float SetArrayY()
         {
             throw new NotImplementedException();
         }
 
-        void INode<IGeometry>.setID<T>(ContainerNode<T> id)
+        internal override void CalcVec01(uint tick)
         {
-            if (_id != default(ContainerNode<IGeometry>))
-            {
-                throw new ArgumentException();
-            }
-            else
-            {
-                _id = id as ContainerNode<IGeometry>;
-            }
-
+            _center._position = _basePoint._position + MovCenter(tick);
         }
+
+        internal override void CalcVec02(vec2d vec, uint tick)
+        {
+            _centerToCorner1._position = vec + UpdateCTC1(tick);
+        }
+
+        internal override void CalcVec03(vec2d vec, uint tick)
+        {
+            _centerToCorner2._position = vec + UpdateCTC2(tick);
+            if (_centerToCorner1._position.GetLength() 
+                == _centerToCorner2._position.GetLength())
+            {
+                throw new ArgumentException("Cannot form a triangle, " +
+                    "two crossing lines are not equal!");
+            }
+        }
+
+        public virtual vec2d MovCenter(uint tick)=>default(vec2d);
+
+        public virtual vec2d UpdateCTC1(uint tick) => default(vec2d);
+
+        public virtual vec2d UpdateCTC2(uint tick) => default(vec2d);
     }
 }
diff --git a/源代码/StgSharp/Geometries/Triangle.cs b/源代码/StgSharp/Geometries/Triangle.cs
index 72dcfd8e..c1f49e1d 100644
--- a/源代码/StgSharp/Geometries/Triangle.cs
+++ b/源代码/StgSharp/Geometries/Triangle.cs
@@ -2,80 +2,74 @@
 using StgSharp.Math;
 using System;
 using System.Collections.Generic;
+using System.Runtime.CompilerServices;
 using System.Text;
 
 namespace StgSharp
 {
     public class Triangle :IGeometry
     {
-        internal ContainerNode<IGeometry> _id;
         internal Point _basePoint;
-        internal Point _refPoint;
+        internal Point _beginPoint;
         internal Point _line1;
         internal Point _line2;
+        internal RenderMode _renderMode;
 
-        internal GetLocationHandler _refMovHandler;
-        internal GetLocationHandler _line01MovHandler;
-        internal GetLocationHandler _line02MovHandler;
+        public override sealed Point BasePoint => _basePoint;
 
-        Point IGeometry.BasePoint
+        public override sealed Point RefPoint=>_beginPoint;
+
+        public override sealed Point RefVec01 => _line1;
+
+        public override sealed Point RefVec02 => _line2;
+
+        public override RenderMode renderMode => _renderMode;
+
+        internal override void CalcVec01(uint tick)
         {
-            get { return _basePoint; }
+            _beginPoint._position = _basePoint._position+ MovBegin(tick);
         }
 
-        Point IGeometry.RefPoint
+        internal override void CalcVec02(vec2d vec, uint tick)
         {
-            get { return _refPoint; }
+            _line1._position = vec + CalcSide1(tick);
         }
 
-        Point IGeometry.RefVec01
+        internal override void CalcVec03(vec2d vec, uint tick)
         {
-            get { return _refPoint; }
+            _line2._position = vec + CalcSide2(tick);
         }
 
-        Point IGeometry.RefVec02
+        public virtual vec2d MovBegin(uint tick) => default(vec2d);
+
+        public virtual vec2d CalcSide1(uint tick)=> default(vec2d);
+
+        public virtual vec2d CalcSide2(uint tick) => default(vec2d);
+
+        internal override sealed void OnRender(uint tick)
         {
-            get { return _line1; }
+            CalcVec01(tick);
+            switch (_renderMode)
+            {
+                case RenderMode.BasePoint:
+                    CalcVec02(BasePoint._position,tick);
+                    CalcVec03(BasePoint._position,tick);
+                    break;
+                case RenderMode.RefPoint:
+                    CalcVec02(_beginPoint._position,tick);
+                    CalcVec03(_beginPoint._position,tick);
+                    break;
+                default:
+                    break;
+            }
         }
 
-        GetLocationHandler IGeometry.Vec01Expression
-        {
-            get { return _refMovHandler; }
-        }
-
-        GetLocationHandler IGeometry.Vec02Expression
-        {
-            get { return _line01MovHandler; }
-        }
-
-        GetLocationHandler IGeometry.Vec03Expression
-        {
-            get { return _line02MovHandler; }
-        }
-
-        ContainerNode<IGeometry> INode<IGeometry>.ID
-        {
-            get { return _id; }
-        }
-
-        
-
-        void IGeometry.OnRender()
+        public override float SetArrayX()
         {
             throw new NotImplementedException();
         }
 
-        float IGeometry.SetArrayX()
-        {
-            throw new NotImplementedException();
-        }
-
-        float IGeometry.SetArrayY()
-        {
-            throw new NotImplementedException();
-        }
-
-        void INode<IGeometry>.setID<T>(ContainerNode<T> id)
+        public override float SetArrayY()
         {
             throw new NotImplementedException();
         }
diff --git a/源代码/StgSharp/Logic/ContainerNode.cs b/源代码/StgSharp/Logic/ContainerNode.cs
index 927fa25f..72f15795 100644
--- a/源代码/StgSharp/Logic/ContainerNode.cs
+++ b/源代码/StgSharp/Logic/ContainerNode.cs
@@ -9,7 +9,7 @@ namespace StgSharp
     {
         internal ContainerNode<T> ID { get; }
 
-        internal void setID<T>(ContainerNode<T> id) where T : INode<T>;
+        internal void setID(ContainerNode<T> id);
     }
 
 
@@ -23,7 +23,7 @@ namespace StgSharp
         public ContainerNode(T t)
         {
             _value = t;
-            t.setID<T>(this);
+            t.setID(this);
         }
 
         public virtual ContainerNode<T> Previous
diff --git a/源代码/StgSharp/Logic/LinkedList.cs b/源代码/StgSharp/Logic/LinkedList.cs
index 4df718f9..c5362580 100644
--- a/源代码/StgSharp/Logic/LinkedList.cs
+++ b/源代码/StgSharp/Logic/LinkedList.cs
@@ -6,12 +6,12 @@ using System.Text;
 
 namespace StgSharp
 {
-    public class LinkedList<T>:IEnumerable where T: INode<T>
+    public class LinkedList<T>:IEnumerable,INode<LinkedList<T>> where T: INode<T>
     {
         internal readonly ContainerNode<T> _heading;
         internal ContainerNode<T> _first;
         internal ContainerNode<T> _tail;
-
+        private ContainerNode<LinkedList<T>> _id;
         private ContainerNode<T> _cache;
 
         public LinkedList()
@@ -35,6 +35,7 @@ namespace StgSharp
             set { _tail = new ContainerNode<T>(value); }
         }
 
+        ContainerNode<LinkedList<T>> INode<LinkedList<T>>.ID => _id;
 
         public void Add(T t)
         {
@@ -69,5 +70,17 @@ namespace StgSharp
         {
             return new LinkedListEnumrator<T>(this);
         }
+
+        void INode<LinkedList<T>>.setID(ContainerNode<LinkedList<T>> id)
+        {
+            if (_id == null)
+            {
+                throw new ArgumentException("Cannot set ID twice");
+            }
+            else
+            {
+                _id = id;
+            }
+        }
     }
 }
diff --git a/源代码/StgSharp/Logic/Pool.cs b/源代码/StgSharp/Logic/Pool.cs
index b8e5224a..fc6e72cc 100644
--- a/源代码/StgSharp/Logic/Pool.cs
+++ b/源代码/StgSharp/Logic/Pool.cs
@@ -1,4 +1,5 @@
-using StgSharp;
+using Steamworks;
+using StgSharp;
 using StgSharp.Entities;
 using System;
 using System.Collections.Generic;
@@ -7,25 +8,31 @@ using System.Text;
 
 namespace StgSharp
 {
-    public class Pool
+    public class Pool:INode<Pool>
     {
-        public LinkedList<Point> pointContainer;
-        public LinkedList<IGeometry> geometryContainer;
-        public LinkedList<Entity> _bulletContainer;
-        public LinkedList<Entity> _awardContainer;
-        public LinkedList<Entity> _enemyContainer;
+        internal LinkedList<Point> pointContainer;
+        internal LinkedList<IGeometry> geometryContainer;
+        internal LinkedList<Entity> _bulletContainer;
+        internal LinkedList<Entity> _awardContainer;
+        internal LinkedList<Entity> _enemyContainer;
 
-        public Line leftBoader;
-        public Line rightBoader;
-        public Line topBoader;
-        public Line bottomBoader;
+        internal Line leftBoader;
+        internal Line rightBoader;
+        internal Line topBoader;
+        internal Line bottomBoader;
 
         internal Sensor<EntityPartical> Sensor;
 
+        private ContainerNode<Pool> _id;
+
+
+
         public Pool()
         {
         }
 
+        ContainerNode<Pool> INode<Pool>.ID => _id;
+
         public void OnRender()
         {
             foreach (Enemy e in _enemyContainer)
@@ -34,6 +41,17 @@ namespace StgSharp
             }
         }
 
+        void INode<Pool>.setID(ContainerNode<Pool> id)
+        {
+            if (_id == default)
+            {
+                _id = id;
+            }
+            else
+            {
+                throw new ArgumentException("Cannot set ID twicee!");
+            }
+        }
     }
 
 }
diff --git a/源代码/StgSharp/bin/Debug/netstandard2.1/StgSharp.dll b/源代码/StgSharp/bin/Debug/netstandard2.1/StgSharp.dll
index 8b68e8dd..6ff28eac 100644
Binary files a/源代码/StgSharp/bin/Debug/netstandard2.1/StgSharp.dll and b/源代码/StgSharp/bin/Debug/netstandard2.1/StgSharp.dll differ
diff --git a/源代码/StgSharp/bin/Debug/netstandard2.1/StgSharp.pdb b/源代码/StgSharp/bin/Debug/netstandard2.1/StgSharp.pdb
index 01fc3a66..ae412ec4 100644
Binary files a/源代码/StgSharp/bin/Debug/netstandard2.1/StgSharp.pdb and b/源代码/StgSharp/bin/Debug/netstandard2.1/StgSharp.pdb differ
diff --git a/源代码/StgSharp/obj/Debug/netstandard2.1/StgSharp.dll b/源代码/StgSharp/obj/Debug/netstandard2.1/StgSharp.dll
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