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Assets/00.StaryEvo/Runtime/Utility/FSM/FSMIState.cs

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+using System;
+using UnityEngine;
+
+namespace Stary.Evo
+{
+    public interface FSMIState {
+        IFsmSystem FsmSystem { get; }
+        string Name { get; }
+        float Timer { get; set; }
+        //进入该状态时调用
+        void OnEnter();
+        //每帧调用
+        void OnUpdate();
+        //退出该状态时调用
+        void OnExit();
+    }
+    
+    public abstract class AbstractFSMIState : FSMIState
+    {
+        public IFsmSystem FsmSystem { get; }
+        public  string Name { get; }
+        public abstract float Timer { get; set; }
+
+        public AbstractFSMIState(IFsmSystem system)
+        {
+            FsmSystem = system;
+            Name = GetType().Name;
+        }
+
+        public abstract void OnEnter();
+
+        public virtual void OnUpdate()
+        {
+            Timer += Time.deltaTime;
+        }
+
+        public abstract void OnExit();
+    }
+}

Assets/00.StaryEvo/Runtime/Utility/FSM/FSMIState.cs.meta

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+guid: 1dc351fc8dc35ec4ca388c24444a80a8
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/00.StaryEvo/Runtime/Utility/FSM/FSMISystem.cs

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+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Stary.Evo
+{
+    public interface IFsmSystem
+    {
+        FSMIState CurState { get; set; }
+        void AddState(FSMIState state);
+        void RemoveState(FSMIState state);
+        void SetCurState(string name);
+        FSMIState GetStateWithName(string name);
+        HashMap<string, FSMIState> States { get; set; }
+    }
+
+    public class FsmSystem : IFsmSystem
+    {
+        public FSMIState CurState { get; set; }
+        public HashMap<string, FSMIState> States { get; set; }
+
+        public FsmSystem()
+        {
+            States = new HashMap<string, FSMIState>();
+        }
+
+        public void AddState(FSMIState state)
+        {
+            Debug.Log(state.Name);
+            if (!States.ContainsKey(state.Name))
+            {
+                States.Add(state.Name, state);
+            }
+            else
+            {
+                Debug.LogErrorFormat("States状态机容器里已存在名字为--【{0}】--的状态", state.Name.ToString());
+            }
+        }
+
+        public void RemoveState(FSMIState state)
+        {
+            if (States.ContainsKey(state.Name))
+            {
+                States.Remove(state.Name);
+            }
+            else
+            {
+                Debug.LogErrorFormat("States状态机容器里不存在名字为--【{0}】--的状态", state.Name.ToString());
+            }
+        }
+
+        public void SetCurState(string name)
+        {
+            if (CurState != null)
+                CurState.OnExit();
+            FSMIState state = GetStateWithName(name);
+            CurState = state;
+            CurState.OnEnter();
+        }
+
+        public FSMIState GetStateWithName(string name)
+        {
+            if (States.ContainsKey(name))
+            {
+                return States[name];
+            }
+
+            return null;
+        }
+    }
+}

Assets/00.StaryEvo/Runtime/Utility/FSM/FSMISystem.cs.meta

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+fileFormatVersion: 2
+guid: 572d20e55965479cb8846f9fad4873a2
+timeCreated: 1625997700