chore: initial commit

Assets/Scripts/Core/IGameState.cs

@@ -0,0 +1,23 @@
+using System.Collections.Generic;
+using BaseGames.Core.Events;
+
+namespace BaseGames.Core
+{
+    /// <summary>
+    /// 可插件化的游戏状态行为接口。
+    /// </summary>
+    public interface IGameState
+    {
+        GameStateId Id { get; }
+
+        /// <summary>合法的后继状态集合。GameStateMachine.TransitionTo() 据此校验。</summary>
+        IReadOnlyCollection<GameStateId> ValidNextStates { get; }
+
+        void OnEnter(GameStateId previousState);
+        void OnExit(GameStateId nextState);
+
+        /// <summary>每帧由 GameManager.Update() 调用（默认空实现）。</summary>
+        void Tick(float deltaTime);
+    }
+
+}