diff --git a/logic/Client/MainWindow.xaml.cs b/logic/Client/MainWindow.xaml.cs
index 1ac24a7..3874f30 100644
--- a/logic/Client/MainWindow.xaml.cs
+++ b/logic/Client/MainWindow.xaml.cs
@@ -844,7 +844,7 @@ namespace Client
                     }
                     foreach (var obj in listOfButcher)
                     {
-                        if (!isDataFixed[obj.PlayerId])
+                        if (obj.PlayerId < GameData.numOfStudent && !isDataFixed[obj.PlayerId])
                         {
                             IGhostType occupation1 = (IGhostType)OccupationFactory.FindIOccupation(Transformation.ToTrickerType(obj.TrickerType));
                             int j = 0;
diff --git a/logic/GameClass/GameObj/Bullet/Bullet.Ghost.cs b/logic/GameClass/GameObj/Bullet/Bullet.Ghost.cs
index 072a993..4ddd23e 100644
--- a/logic/GameClass/GameObj/Bullet/Bullet.Ghost.cs
+++ b/logic/GameClass/GameObj/Bullet/Bullet.Ghost.cs
@@ -8,7 +8,7 @@ namespace GameClass.GameObj
         public CommonAttackOfGhost(Character player, XY pos, int radius = GameData.bulletRadius) :
             base(player, radius, pos)
         {
-            AP.Set(GameData.basicApOfGhost);
+            AP.SetReturnOri(GameData.basicApOfGhost);
         }
         public override double BulletBombRange => 0;
         public override double AttackDistance => GameData.basicAttackShortRange;
@@ -45,7 +45,7 @@ namespace GameClass.GameObj
         public Strike(Character player, XY pos, int radius = GameData.bulletRadius) :
             base(player, radius, pos)
         {
-            AP.Set(GameData.basicApOfGhost * 16 / 15);
+            AP.SetReturnOri(GameData.basicApOfGhost * 16 / 15);
         }
         public override double BulletBombRange => 0;
         public override double AttackDistance => GameData.basicAttackShortRange * 20 / 22;
@@ -83,7 +83,7 @@ namespace GameClass.GameObj
         public FlyingKnife(Character player, XY pos, int radius = GameData.bulletRadius) :
             base(player, radius, pos)
         {
-            AP.Set(GameData.basicApOfGhost * 4 / 5);
+            AP.SetReturnOri(GameData.basicApOfGhost * 4 / 5);
         }
         public override double BulletBombRange => 0;
         public override double AttackDistance => GameData.basicRemoteAttackRange * 13;
@@ -123,7 +123,7 @@ namespace GameClass.GameObj
     {
         public BombBomb(Character player, XY pos, int radius = GameData.bulletRadius) : base(player, radius, pos)
         {
-            AP.Set((int)(GameData.basicApOfGhost * 6.0 / 5));
+            AP.SetReturnOri((int)(GameData.basicApOfGhost * 6.0 / 5));
         }
         public override double BulletBombRange => GameData.basicBulletBombRange;
         public override double AttackDistance => GameData.basicAttackShortRange;
@@ -163,7 +163,7 @@ namespace GameClass.GameObj
     {
         public JumpyDumpty(Character player, XY pos, int radius = GameData.bulletRadius) : base(player, radius, pos)
         {
-            AP.Set((int)(GameData.basicApOfGhost * 0.6));
+            AP.SetReturnOri((int)(GameData.basicApOfGhost * 0.6));
         }
         public override double BulletBombRange => GameData.basicBulletBombRange / 2;
         public override double AttackDistance => GameData.basicAttackShortRange * 18 / 22;
diff --git a/logic/GameClass/GameObj/Bullet/Bullet.cs b/logic/GameClass/GameObj/Bullet/Bullet.cs
index c47f746..2895429 100644
--- a/logic/GameClass/GameObj/Bullet/Bullet.cs
+++ b/logic/GameClass/GameObj/Bullet/Bullet.cs
@@ -11,7 +11,8 @@ namespace GameClass.GameObj
         /// </summary>
         public abstract double BulletBombRange { get; }
         public abstract double AttackDistance { get; }
-        public AtomicInt AP { get; }
+        private AtomicInt ap = new(0);
+        public AtomicInt AP { get => ap; }
         public abstract int Speed { get; }
         public abstract bool IsRemoteAttack { get; }
         public abstract int CastTime { get; }
@@ -43,8 +44,8 @@ namespace GameClass.GameObj
         public Bullet(Character player, int radius, XY Position) :
             base(Position, radius, GameObjType.Bullet)
         {
-            this.CanMove.Set(true);
-            this.MoveSpeed.Set(this.Speed);
+            this.CanMove.SetReturnOri(true);
+            this.MoveSpeed.SetReturnOri(this.Speed);
             this.hasSpear = player.TryUseSpear();
             this.Parent = player;
         }
diff --git a/logic/GameClass/GameObj/Character/Character.Skill.cs b/logic/GameClass/GameObj/Character/Character.Skill.cs
index 69c487a..21f4a48 100644
--- a/logic/GameClass/GameObj/Character/Character.Skill.cs
+++ b/logic/GameClass/GameObj/Character/Character.Skill.cs
@@ -31,12 +31,12 @@ namespace GameClass.GameObj
         protected Character(XY initPos, int initRadius, CharacterType characterType) :
             base(initPos, initRadius, GameObjType.Character)
         {
-            this.CanMove.Set(true);
+            this.CanMove.SetReturnOri(true);
             this.score = 0;
             this.buffManager = new BuffManager();
             this.occupation = OccupationFactory.FindIOccupation(characterType);
             this.HP = new(Occupation.MaxHp);
-            this.MoveSpeed.Set(this.orgMoveSpeed = Occupation.MoveSpeed);
+            this.MoveSpeed.SetReturnOri(this.orgMoveSpeed = Occupation.MoveSpeed);
             this.BulletOfPlayer = this.OriBulletOfPlayer = Occupation.InitBullet;
             this.concealment = Occupation.Concealment;
             this.alertnessRadius = Occupation.AlertnessRadius;
diff --git a/logic/GameClass/GameObj/Character/Character.cs b/logic/GameClass/GameObj/Character/Character.cs
index 14e0595..1461b7a 100644
--- a/logic/GameClass/GameObj/Character/Character.cs
+++ b/logic/GameClass/GameObj/Character/Character.cs
@@ -459,7 +459,7 @@ namespace GameClass.GameObj
             {
                 if (SetPlayerState(RunningStateType.RunningForcibly, playerStateType) == -1) return false;
                 TryToRemove();
-                CanMove.Set(false);
+                CanMove.SetReturnOri(false);
                 position = GameData.PosWhoDie;
             }
             return true;
@@ -604,7 +604,7 @@ namespace GameClass.GameObj
         }
 
         public void AddMoveSpeed(int buffTime, double add = 1.0) => buffManager.AddMoveSpeed(add, buffTime, newVal =>
-                                                                                                            { MoveSpeed.Set(newVal < GameData.characterMaxSpeed ? newVal : GameData.characterMaxSpeed); },
+                                                                                                            { MoveSpeed.SetReturnOri(newVal < GameData.characterMaxSpeed ? newVal : GameData.characterMaxSpeed); },
                                                                                              OrgMoveSpeed);
         public bool HasFasterSpeed => buffManager.HasFasterSpeed;
 
diff --git a/logic/GameClass/GameObj/GameObj.cs b/logic/GameClass/GameObj/GameObj.cs
index 1934d64..3933b7a 100644
--- a/logic/GameClass/GameObj/GameObj.cs
+++ b/logic/GameClass/GameObj/GameObj.cs
@@ -30,7 +30,8 @@ namespace GameClass.GameObj
 
         public abstract ShapeType Shape { get; }
 
-        public AtomicBool IsRemoved { get; } = new AtomicBool(false);
+        private AtomicBool isRemoved = new(false);
+        public AtomicBool IsRemoved { get => isRemoved; }
         public virtual bool TryToRemove()
         {
             return IsRemoved.TrySet(true);
diff --git a/logic/GameClass/GameObj/Map/Chest.cs b/logic/GameClass/GameObj/Map/Chest.cs
index ff589da..8e450e5 100644
--- a/logic/GameClass/GameObj/Map/Chest.cs
+++ b/logic/GameClass/GameObj/Map/Chest.cs
@@ -19,6 +19,7 @@ namespace GameClass.GameObj
         private readonly Gadget[] propInChest = new Gadget[GameData.maxNumOfPropInChest] { new NullProp(), new NullProp() };
         public Gadget[] PropInChest => propInChest;
 
-        public LongProgressContinuously OpenProgress { get; } = new LongProgressContinuously();
+        private LongProgressByTime openProgress = new LongProgressByTime();
+        public LongProgressByTime OpenProgress { get => openProgress; }
     }
 }
diff --git a/logic/GameClass/GameObj/Map/Door.cs b/logic/GameClass/GameObj/Map/Door.cs
index 80b6645..ca6ba5f 100644
--- a/logic/GameClass/GameObj/Map/Door.cs
+++ b/logic/GameClass/GameObj/Map/Door.cs
@@ -46,7 +46,8 @@ namespace GameClass.GameObj
             }
         }
 
-        public AtomicInt LockDegree { get; } = new AtomicInt(0);
+        private AtomicInt lockDegree = new AtomicInt(0);
+        public AtomicInt LockDegree { get => lockDegree; }
 
         private long openStartTime = 0;
         public long OpenStartTime
@@ -97,7 +98,7 @@ namespace GameClass.GameObj
             {
                 if (!isOpen) return false;
                 if (whoLockOrOpen != null) return false;
-                LockDegree.Set(0);
+                LockDegree.SetReturnOri(0);
                 whoLockOrOpen = character;
                 return true;
             }
diff --git a/logic/GameClass/GameObj/Map/Map.cs b/logic/GameClass/GameObj/Map/Map.cs
index af3d9b1..75dea6b 100644
--- a/logic/GameClass/GameObj/Map/Map.cs
+++ b/logic/GameClass/GameObj/Map/Map.cs
@@ -26,7 +26,7 @@ namespace GameClass.GameObj
                 {
                     Random r = new Random(Environment.TickCount);
                     EmergencyExit emergencyExit = (EmergencyExit)(GameObjDict[GameObjType.EmergencyExit][r.Next(0, GameObjDict[GameObjType.EmergencyExit].Count)]);
-                    emergencyExit.CanOpen.Set(true);
+                    emergencyExit.CanOpen.SetReturnOri(true);
                     Preparation.Utility.Debugger.Output(emergencyExit, emergencyExit.Position.ToString());
                 }
                 finally
@@ -41,7 +41,7 @@ namespace GameClass.GameObj
                 try
                 {
                     foreach (Doorway doorway in GameObjDict[GameObjType.Doorway])
-                        doorway.PowerSupply.Set(true);
+                        doorway.PowerSupply.SetReturnOri(true);
                 }
                 finally
                 {
@@ -228,7 +228,6 @@ namespace GameClass.GameObj
                     {
                         if (person.CharacterType == CharacterType.TechOtaku)
                         {
-                            Debugger.Output(person, person.PlayerID.ToString());
                             foreach (Character character in gameObjDict[GameObjType.Character])
                             {
                                 if (((UseRobot)person.FindActiveSkill(ActiveSkillType.UseRobot)).NowPlayerID == character.PlayerID)
diff --git a/logic/GameClass/GameObj/Moveable.cs b/logic/GameClass/GameObj/Moveable.cs
index 1ff26f7..093f17a 100644
--- a/logic/GameClass/GameObj/Moveable.cs
+++ b/logic/GameClass/GameObj/Moveable.cs
@@ -94,14 +94,16 @@ namespace GameClass.GameObj
             }
         }
 
-        public AtomicBool CanMove { get; }
+        private AtomicBool canMove = new(false);
+        public AtomicBool CanMove { get => canMove; }
 
         public bool IsAvailableForMove => !IsMoving && CanMove && !IsRemoved; // 是否能接收移动指令
 
         /// <summary>
         /// 移动速度
         /// </summary>
-        public AtomicInt MoveSpeed { get; }
+        private AtomicInt moveSpeed = new(0);
+        public AtomicInt MoveSpeed { get => moveSpeed; }
         /// <summary>
         /// 原初移动速度
         /// </summary>
diff --git a/logic/GameClass/GameObj/Prop/Gadget.cs b/logic/GameClass/GameObj/Prop/Gadget.cs
index 85565cc..74f545c 100644
--- a/logic/GameClass/GameObj/Prop/Gadget.cs
+++ b/logic/GameClass/GameObj/Prop/Gadget.cs
@@ -24,8 +24,8 @@ namespace GameClass.GameObj
         public Gadget(XY initPos, int radius = GameData.propRadius) :
             base(initPos, radius, GameObjType.Gadget)
         {
-            this.CanMove.Set(false);
-            this.MoveSpeed.Set(GameData.propMoveSpeed);
+            this.CanMove.SetReturnOri(false);
+            this.MoveSpeed.SetReturnOri(GameData.propMoveSpeed);
         }
     }
     public abstract class Tool : Gadget
diff --git a/logic/GameClass/GameObj/Prop/Item.cs b/logic/GameClass/GameObj/Prop/Item.cs
index 2b83cea..881e38f 100644
--- a/logic/GameClass/GameObj/Prop/Item.cs
+++ b/logic/GameClass/GameObj/Prop/Item.cs
@@ -17,8 +17,8 @@ namespace GameClass.GameObj
         public Item(XY initPos, int radius = GameData.propRadius) :
             base(initPos, radius, GameObjType.Item)
         {
-            this.CanMove.Set(false);
-            this.MoveSpeed.Set(0);
+            this.CanMove.SetReturnOri(false);
+            this.MoveSpeed.SetReturnOri(0);
         }
     }
 
diff --git a/logic/GameEngine/MoveEngine.cs b/logic/GameEngine/MoveEngine.cs
index a2236b7..d4c76f7 100644
--- a/logic/GameEngine/MoveEngine.cs
+++ b/logic/GameEngine/MoveEngine.cs
@@ -102,7 +102,7 @@ namespace GameEngine
             lock (obj.ActionLock)
             {
                 if (!obj.IsAvailableForMove) { EndMove(obj); return; }
-                obj.IsMoving.Set(true);
+                obj.IsMoving.SetReturnOri(true);
             }
 
             new Thread
@@ -139,7 +139,7 @@ namespace GameEngine
 
                     if (isEnded)
                     {
-                        obj.IsMoving.Set(false);
+                        obj.IsMoving.SetReturnOri(false);
                         EndMove(obj);
                         return;
                     }
@@ -184,7 +184,7 @@ namespace GameEngine
                         }
                         if (isEnded)
                         {
-                            obj.IsMoving.Set(false);
+                            obj.IsMoving.SetReturnOri(false);
                             EndMove(obj);
                             return;
                         }
@@ -224,7 +224,7 @@ namespace GameEngine
                                 }
                             } while (flag);
                         }
-                        obj.IsMoving.Set(false);  // 结束移动
+                        obj.IsMoving.SetReturnOri(false);  // 结束移动
                         EndMove(obj);
                     }
                 }
diff --git a/logic/Gaming/ActionManager.cs b/logic/Gaming/ActionManager.cs
index 5fd1cc3..6d83ff1 100644
--- a/logic/Gaming/ActionManager.cs
+++ b/logic/Gaming/ActionManager.cs
@@ -450,12 +450,12 @@ namespace Gaming
                             player.ReSetPos(windowToPlayer + windowForClimb.Position);
                         }
 
-                        player.MoveSpeed.Set(player.SpeedOfClimbingThroughWindows);
+                        player.MoveSpeed.SetReturnOri(player.SpeedOfClimbingThroughWindows);
                         moveEngine.MoveObj(player, (int)(GameData.numOfPosGridPerCell * 3 * 1000 / player.MoveSpeed / 2), (-1 * windowToPlayer).Angle(), stateNum);
 
                         Thread.Sleep((int)(GameData.numOfPosGridPerCell * 3 * 1000 / player.MoveSpeed / 2));
 
-                        player.MoveSpeed.Set(player.ReCalculateBuff(BuffType.AddSpeed, player.OrgMoveSpeed, GameData.MaxSpeed, GameData.MinSpeed));
+                        player.MoveSpeed.SetReturnOri(player.ReCalculateBuff(BuffType.AddSpeed, player.OrgMoveSpeed, GameData.MaxSpeed, GameData.MinSpeed));
 
                         lock (player.ActionLock)
                         {
diff --git a/logic/Gaming/AttackManager.cs b/logic/Gaming/AttackManager.cs
index 2204cf6..70d6155 100644
--- a/logic/Gaming/AttackManager.cs
+++ b/logic/Gaming/AttackManager.cs
@@ -33,7 +33,7 @@ namespace Gaming
                         Debugger.Output(obj, " end move at " + obj.Position.ToString() + " At time: " + Environment.TickCount64);
                         if (obj.CanMove && ((Bullet)obj).TypeOfBullet != BulletType.JumpyDumpty)
                             BulletBomb((Bullet)obj, null);
-                        obj.CanMove.Set(false);
+                        obj.CanMove.SetReturnOri(false);
                     }
                 );
                 this.characterManager = characterManager;
@@ -89,7 +89,7 @@ namespace Gaming
             {
                 if (gameMap.Remove(bullet))
                 {
-                    bullet.CanMove.Set(false);
+                    bullet.CanMove.SetReturnOri(false);
                     if (bullet.BulletBombRange > 0)
                     {
                         BombedBullet bombedBullet = new(bullet);
diff --git a/logic/Gaming/CharacterManager.cs b/logic/Gaming/CharacterManager.cs
index 6fdeedb..71c403f 100644
--- a/logic/Gaming/CharacterManager.cs
+++ b/logic/Gaming/CharacterManager.cs
@@ -57,41 +57,8 @@ namespace Gaming
                 }
                 gameMap.Add(newPlayer);
 
-                newPlayer.TeamID.Set(teamID);
-                newPlayer.PlayerID.Set(playerID);
-                /* #region 人物装弹
-                 new Thread
-                 (
-                     () =>
-                     {
-                         while (!gameMap.Timer.IsGaming)
-                             Thread.Sleep(Math.Max(newPlayer.CD, GameData.checkInterval));
-                         long lastTime = Environment.TickCount64;
-                         new FrameRateTaskExecutor<int>(
-                             loopCondition: () => gameMap.Timer.IsGaming && !newPlayer.IsRemoved,
-                             loopToDo: () =>
-                             {
-                                 long nowTime = Environment.TickCount64;
-                                 if (newPlayer.BulletNum == newPlayer.MaxBulletNum)
-                                     lastTime = nowTime;
-                                 else if (nowTime - lastTime >= newPlayer.CD)
-                                 {
-                                     _ = newPlayer.TryAddBulletNum();
-                                     lastTime = nowTime;
-                                 }
-                             },
-                             timeInterval: GameData.checkInterval,
-                             finallyReturn: () => 0
-                         )
-                         {
-                             AllowTimeExceed = true,
-                         }
-                             .Start();
-                     }
-                 )
-                 { IsBackground = true }.Start();
-                 #endregion
-     */
+                newPlayer.TeamID.SetReturnOri(teamID);
+                newPlayer.PlayerID.SetReturnOri(playerID);
                 #region BGM,牵制得分更新
                 new Thread
                 (
@@ -311,7 +278,7 @@ namespace Gaming
 
                 if (student.CharacterType == CharacterType.StraightAStudent)
                 {
-                    ((WriteAnswers)student.FindActiveSkill(ActiveSkillType.WriteAnswers)).DegreeOfMeditation.Set(0);
+                    ((WriteAnswers)student.FindActiveSkill(ActiveSkillType.WriteAnswers)).DegreeOfMeditation.SetReturnOri(0);
                 }
                 student.SetDegreeOfTreatment0();
 
diff --git a/logic/Gaming/Game.cs b/logic/Gaming/Game.cs
index 96db675..02d783c 100644
--- a/logic/Gaming/Game.cs
+++ b/logic/Gaming/Game.cs
@@ -84,7 +84,7 @@ namespace Gaming
             else
             {
 #if DEBUG
-                Console.WriteLine($"PlayerID:{playerID} player does not exists!");
+                Console.WriteLine($"playerID:{playerID} player does not exists!");
 #endif
                 return false;
 
@@ -326,7 +326,7 @@ namespace Gaming
                         {
                             foreach (Character player in gameMap.GameObjDict[GameObjType.Character])
                             {
-                                player.CanMove.Set(false);
+                                player.CanMove.SetReturnOri(false);
                             }
                         }
                         gameMap.GameObjDict[keyValuePair.Key].Clear();
diff --git a/logic/Gaming/SkillManager/SkillManager.ActiveSkill.cs b/logic/Gaming/SkillManager/SkillManager.ActiveSkill.cs
index 74ce47a..88398ae 100644
--- a/logic/Gaming/SkillManager/SkillManager.ActiveSkill.cs
+++ b/logic/Gaming/SkillManager/SkillManager.ActiveSkill.cs
@@ -196,7 +196,7 @@ namespace Gaming
                                  }
                                  if (homingMissile != null)
                                  {
-                                     homingMissile.CanMove.Set(true);
+                                     homingMissile.CanMove.SetReturnOri(true);
                                      attackManager.moveEngine.MoveObj(homingMissile, GameData.checkIntervalWhenSparksNSplash - 1, (whoAttacked.Position - homingMissile.Position).Angle(), ++homingMissile.StateNum);
                                  }
                              },
@@ -227,7 +227,7 @@ namespace Gaming
                         if (generator.Repair(((WriteAnswers)activeSkill).DegreeOfMeditation, player))
                             gameMap.AddNumOfRepairedGenerators();
                         Debugger.Output(player, "uses WriteAnswers in" + generator.ToString() + "with " + (((WriteAnswers)activeSkill).DegreeOfMeditation).ToString());
-                        ((WriteAnswers)activeSkill).DegreeOfMeditation.Set(0);
+                        ((WriteAnswers)activeSkill).DegreeOfMeditation.SetReturnOri(0);
                     }
                 },
                                                       () =>
diff --git a/logic/Gaming/SkillManager/SkillManager.PassiveSkill.cs b/logic/Gaming/SkillManager/SkillManager.PassiveSkill.cs
index b22254e..3cc89c7 100644
--- a/logic/Gaming/SkillManager/SkillManager.PassiveSkill.cs
+++ b/logic/Gaming/SkillManager/SkillManager.PassiveSkill.cs
@@ -26,7 +26,7 @@ namespace Gaming  // 被动技能开局时就释放，持续到游戏结束
                             () =>
                             {
                                 if (player.Commandable() && player.PlayerState != PlayerStateType.Fixing) activeSkill.DegreeOfMeditation.Add(learningDegree * GameData.frameDuration);
-                                else activeSkill.DegreeOfMeditation.Set(0);
+                                else activeSkill.DegreeOfMeditation.SetReturnOri(0);
                                 //Debugger.Output(player, "with " + (((WriteAnswers)activeSkill).DegreeOfMeditation).ToString());
                             },
                             timeInterval: GameData.frameDuration,
diff --git a/logic/Preparation/Interface/ISkill.cs b/logic/Preparation/Interface/ISkill.cs
index bc3f2d6..65b6270 100644
--- a/logic/Preparation/Interface/ISkill.cs
+++ b/logic/Preparation/Interface/ISkill.cs
@@ -174,7 +174,8 @@ namespace Preparation.Interface
         public override int SkillCD => GameData.commonSkillCD;
         public override int DurationTime => 0;
 
-        public AtomicInt DegreeOfMeditation { get; } = new(0);
+        private AtomicInt degreeOfMeditation = new(0);
+        public AtomicInt DegreeOfMeditation { get => degreeOfMeditation; }
     }
 
     public class SummonGolem : ActiveSkill
diff --git a/logic/Preparation/Utility/SafeValue.cs b/logic/Preparation/Utility/SafeValue.cs
index 45a4b66..dcbf502 100644
--- a/logic/Preparation/Utility/SafeValue.cs
+++ b/logic/Preparation/Utility/SafeValue.cs
@@ -5,7 +5,7 @@ namespace Preparation.Utility
 {
     //理论上结构体最好不可变，这里采用了可变结构。
     //其对应属性不应当有set访问器，避免不安全的=赋值
-    public struct AtomicInt
+    public class AtomicInt
     {
         private int v;
         public AtomicInt(int x)
@@ -15,18 +15,17 @@ namespace Preparation.Utility
         public override string ToString() => Interlocked.CompareExchange(ref v, -1, -1).ToString();
         public int Get() => Interlocked.CompareExchange(ref v, -1, -1);
         public static implicit operator int(AtomicInt aint) => Interlocked.CompareExchange(ref aint.v, -1, -1);
-        public int Set(int value) => Interlocked.Exchange(ref v, value);
-
+        /// <returns>返回操作前的值</returns>
+        public int SetReturnOri(int value) => Interlocked.Exchange(ref v, value);
         public int Add(int x) => Interlocked.Add(ref v, x);
         public int Sub(int x) => Interlocked.Add(ref v, -x);
         public int Inc() => Interlocked.Increment(ref v);
         public int Dec() => Interlocked.Decrement(ref v);
-
-        public void CompareExchange(int newV, int compareTo) => Interlocked.CompareExchange(ref v, newV, compareTo);
         /// <returns>返回操作前的值</returns>
         public int CompareExReturnOri(int newV, int compareTo) => Interlocked.CompareExchange(ref v, newV, compareTo);
     }
-    public struct AtomicLong
+
+    public class AtomicLong
     {
         private long v;
         public AtomicLong(long x)
@@ -36,18 +35,17 @@ namespace Preparation.Utility
         public override string ToString() => Interlocked.Read(ref v).ToString();
         public long Get() => Interlocked.Read(ref v);
         public static implicit operator long(AtomicLong aint) => Interlocked.Read(ref aint.v);
-        public long Set(long value) => Interlocked.Exchange(ref v, value);
-
+        /// <returns>返回操作前的值</returns>
+        public long SetReturnOri(long value) => Interlocked.Exchange(ref v, value);
         public long Add(long x) => Interlocked.Add(ref v, x);
         public long Sub(long x) => Interlocked.Add(ref v, -x);
         public long Inc() => Interlocked.Increment(ref v);
         public long Dec() => Interlocked.Decrement(ref v);
-
-        public void CompareExchange(long newV, long compareTo) => Interlocked.CompareExchange(ref v, newV, compareTo);
         /// <returns>返回操作前的值</returns>
         public long CompareExReturnOri(long newV, long compareTo) => Interlocked.CompareExchange(ref v, newV, compareTo);
     }
-    public struct AtomicBool
+
+    public class AtomicBool
     {
         private int v;//v==0为false,v==1为true
         public AtomicBool(bool x)
@@ -57,36 +55,34 @@ namespace Preparation.Utility
         public override string ToString() => (Interlocked.CompareExchange(ref v, -2, -2) == 0) ? "false" : "true";
         public bool Get() => (Interlocked.CompareExchange(ref v, -1, -1) != 0);
         public static implicit operator bool(AtomicBool abool) => (Interlocked.CompareExchange(ref abool.v, -1, -1) != 0);
-
-        public bool Set(bool value) => (Interlocked.Exchange(ref v, value ? 1 : 0) != 0);
-
+        /// <returns>返回操作前的值</returns>
+        public bool SetReturnOri(bool value) => (Interlocked.Exchange(ref v, value ? 1 : 0) != 0);
         /// <returns>赋值前的值是否与将赋予的值不相同</returns>
         public bool TrySet(bool value)
         {
             return (Interlocked.CompareExchange(ref v, value ? 1 : 0, value ? 0 : 1) ^ (value ? 1 : 0)) != 0;
         }
-
         public bool And(bool x) => Interlocked.And(ref v, x ? 1 : 0) != 0;
         public bool Or(bool x) => Interlocked.Or(ref v, x ? 1 : 0) != 0;
     }
 
     /// <summary>
-    /// 一个能记录Start后完成多少进度的进度条（long），
+    /// 根据时间推算Start后完成多少进度的进度条（long）。
     /// 只允许Start时修改needTime（请确保大于0）；
     /// 支持TrySet0使未完成的进度条终止清零；支持Set0使进度条强制终止清零；
-    /// 不支持暂停
+    /// 通过原子操作实现。
     /// </summary>
-    public struct LongProgressContinuously
+    public class LongProgressByTime
     {
         private long endT = long.MaxValue;
         private long needT;
 
-        public LongProgressContinuously(long needTime)
+        public LongProgressByTime(long needTime)
         {
-            if (needTime <= 0) Debugger.Output("Bug:LongProgressContinuously.needTime (" + needTime.ToString() + ") is less than 0.");
+            if (needTime <= 0) Debugger.Output("Bug:LongProgressByTime.needTime (" + needTime.ToString() + ") is less than 0.");
             this.needT = needTime;
         }
-        public LongProgressContinuously()
+        public LongProgressByTime()
         {
             this.needT = long.MaxValue;
         }
@@ -118,7 +114,7 @@ namespace Preparation.Utility
         /// <summary>
         /// <0则表明未开始
         /// </summary>
-        public static implicit operator long(LongProgressContinuously pLong) => pLong.GetProgress();
+        public static implicit operator long(LongProgressByTime pLong) => pLong.GetProgress();
 
         /// <summary>
         /// GetProgressDouble<0则表明未开始
@@ -134,13 +130,13 @@ namespace Preparation.Utility
         {
             if (needTime <= 0)
             {
-                Debugger.Output("Warning:Start LongProgressContinuously with the needTime (" + needTime.ToString() + ") which is less than 0.");
+                Debugger.Output("Warning:Start LongProgressByTime with the needTime (" + needTime.ToString() + ") which is less than 0.");
                 return false;
             }
             //规定只有Start可以修改needT，且需要先访问endTime，从而避免锁（某种程度上endTime可以认为是needTime的锁）
             if (Interlocked.CompareExchange(ref endT, Environment.TickCount64 + needTime, long.MaxValue) != long.MaxValue) return false;
-            if (needTime <= 2) Debugger.Output("Warning:the field of LongProgressContinuously is " + needTime.ToString() + ",which is too small.");
-            Interlocked.Exchange(ref this.needT, needTime);
+            if (needTime <= 2) Debugger.Output("Warning:the field of LongProgressByTime is " + needTime.ToString() + ",which is too small.");
+            Interlocked.Exchange(ref needT, needTime);
             return true;
         }
         public bool Start()
@@ -149,7 +145,13 @@ namespace Preparation.Utility
             if (Interlocked.CompareExchange(ref endT, Environment.TickCount64 + needTime, long.MaxValue) != long.MaxValue) return false;
             return true;
         }
+        /// <summary>
+        /// 使进度条强制终止清零
+        /// </summary>
         public void Set0() => Interlocked.Exchange(ref endT, long.MaxValue);
+        /// <summary>
+        /// 使未完成的进度条终止清零
+        /// </summary>
         public bool TrySet0()
         {
             if (Environment.TickCount64 < Interlocked.CompareExchange(ref endT, -2, -2))
@@ -162,10 +164,34 @@ namespace Preparation.Utility
         //增加其他新的写操作可能导致不安全
     }
 
+    /*
+    /// <summary>
+    /// 记录（不是根据时间）完成多少进度的进度条（long）。
+    /// </summary>
+    public struct IntProgressByAdding
+    {
+        private int completedProgress = -1;
+        private int requiredProgress;
+        public IntProgressByAdding(int completedProgress, int requiredProgress)
+        {
+            this.completedProgress = completedProgress;
+            this.requiredProgress = requiredProgress;
+        }
+        public IntProgressByAdding(int requiredProgress)
+        {
+            this.requiredProgress = requiredProgress;
+        }
+        public IntProgressByAdding() 
+        {
+            this.requiredProgress=int.MaxValue;
+        }
+    }
+    */
+
     /// <summary>
     /// 一个保证在[0,maxValue]的可变int，支持可变的maxValue(请确保大于0)
     /// </summary>
-    public struct IntWithVariableRange
+    public class IntWithVariableRange
     {
         private int v;
         private int maxV;
@@ -310,7 +336,7 @@ namespace Preparation.Utility
     /// <summary>
     /// 一个保证在[0,maxValue]的可变long，支持可变的maxValue(请确保大于0)
     /// </summary>
-    public struct LongWithVariableRange
+    public class LongWithVariableRange
     {
         private long v;
         private long maxV;
@@ -319,7 +345,7 @@ namespace Preparation.Utility
         {
             if (maxValue < 0)
             {
-                Debugger.Output("Warning:Try to set LongWithVariableRange.maxValue to " + maxValue.ToString() + ".");
+                Debugger.Output("Warning:Try to set SafaValues.LongWithVariableRange.maxValue to " + maxValue.ToString() + ".");
                 maxValue = 0;
             }
             v = value < maxValue ? value : maxValue;
@@ -332,7 +358,7 @@ namespace Preparation.Utility
         {
             if (maxValue < 0)
             {
-                Debugger.Output("Warning:Try to set LongWithVariableRange.maxValue to " + maxValue.ToString() + ".");
+                Debugger.Output("Warning:Try to set SafaValues.LongWithVariableRange.maxValue to " + maxValue.ToString() + ".");
                 maxValue = 0;
             }
             v = this.maxV = maxValue;
@@ -455,7 +481,7 @@ namespace Preparation.Utility
     /// <summary>
     /// 一个保证在[0,maxNum],每CDms自动更新的可变int，支持可变的CD、maxNum(请确保大于0)
     /// </summary>
-    public struct IntNumUpdateByCD
+    public class IntNumUpdateByCD
     {
         private int num;
         private int maxNum;
@@ -623,9 +649,9 @@ namespace Preparation.Utility
         {
             lock (numLock)
             {
-                if (cd <= 0) Debugger.Output("Bug:Set IntNumUpdateByCD.cd to " + cd.ToString() + ".");
+                if (cd <= 0) Debugger.Output("Bug:SetReturnOri IntNumUpdateByCD.cd to " + cd.ToString() + ".");
                 this.cd = cd;
             }
         }
     }
-}
+}
\ No newline at end of file