From 499436092784f5783eb0ac3c7aa8232167b7ea1a Mon Sep 17 00:00:00 2001
From: Joywayer <joywayer@163.com>
Date: Fri, 3 Jul 2026 15:00:59 +0800
Subject: [PATCH] =?UTF-8?q?feat(ai):=20EnemyAiBrain=20=E7=BB=84=E4=BB=B6?=
 =?UTF-8?q?=E2=80=94=E2=80=94=E6=89=BF=E8=BD=BD=20AiRuntime=E3=80=81?=
 =?UTF-8?q?=E9=80=90=E5=B8=A7=E6=8E=A8=E8=BF=9B=E3=80=81=E6=B1=A0=E5=A4=8D?=
 =?UTF-8?q?=E7=94=A8=E9=87=8D=E7=BD=AE=E3=80=81=E4=BF=A1=E5=8F=B7=E5=85=A5?=
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---
 .../Scripts/Enemies/AIBrain/EnemyAiBrain.cs   | 59 +++++++++++++++++++
 .../Enemies/AIBrain/EnemyAiBrain.cs.meta      | 11 ++++
 2 files changed, 70 insertions(+)
 create mode 100644 Assets/_Game/Scripts/Enemies/AIBrain/EnemyAiBrain.cs
 create mode 100644 Assets/_Game/Scripts/Enemies/AIBrain/EnemyAiBrain.cs.meta

diff --git a/Assets/_Game/Scripts/Enemies/AIBrain/EnemyAiBrain.cs b/Assets/_Game/Scripts/Enemies/AIBrain/EnemyAiBrain.cs
new file mode 100644
index 00000000..c92c460a
--- /dev/null
+++ b/Assets/_Game/Scripts/Enemies/AIBrain/EnemyAiBrain.cs
@@ -0,0 +1,59 @@
+using UnityEngine;
+using BaseGames.AI;
+
+namespace BaseGames.Enemies
+{
+    /// <summary>
+    /// 把 BrainGraph 决策层挂到敌人上：按 id 取共享 AiGraph、构造 AiRuntime、逐帧推进。
+    /// 取代旧的行为树组件。
+    /// </summary>
+    [DisallowMultipleComponent]
+    [RequireComponent(typeof(EnemyBase))]
+    public sealed class EnemyAiBrain : MonoBehaviour
+    {
+        [Tooltip("对应 [AiDefinition(id)] 的敌人 AI 定义 id，例如 E001")]
+        [SerializeField] string _definitionId;
+
+        EnemyBase _enemy;
+        EnemyBrainContext _context;
+        AiRuntime _runtime;
+
+        public string DefinitionId => _definitionId;
+        public string CurrentStateName => _runtime != null ? _runtime.CurrentStateName : "(none)";
+        public bool IsSuspended => _runtime != null && _runtime.IsSuspended;
+        public AiRuntime Runtime => _runtime;
+
+        void Awake()
+        {
+            _enemy = GetComponent<EnemyBase>();
+            if (string.IsNullOrEmpty(_definitionId))
+            {
+                // 根因暴露：漏配 id 直接报错，不静默兜底。
+                Debug.LogError($"EnemyAiBrain 未配置 _definitionId：{name}", this);
+                enabled = false;
+                return;
+            }
+            var graph = AiDefinitionRegistry.GetGraph(_definitionId); // 不存在则抛异常
+            _context = new EnemyBrainContext(_enemy);
+            _runtime = new AiRuntime(graph, _context);
+        }
+
+        void Update()
+        {
+            if (_runtime == null) return;
+            float dt = Time.deltaTime;
+            _context.Refresh(dt);
+            _runtime.Tick(dt);
+        }
+
+        /// <summary>对象池复用时由 EnemyBase.OnSpawn 调用：回到 Entry、清临时态。</summary>
+        public void ResetBrain()
+        {
+            _context?.ResetScratch();
+            _runtime?.Reset();
+        }
+
+        /// <summary>信号入口，供 EnemyBase 转发死亡等事件到决策层。</summary>
+        public void Send(AiSignal signal) => _runtime?.Send(signal);
+    }
+}
diff --git a/Assets/_Game/Scripts/Enemies/AIBrain/EnemyAiBrain.cs.meta b/Assets/_Game/Scripts/Enemies/AIBrain/EnemyAiBrain.cs.meta
new file mode 100644
index 00000000..0ca70084
--- /dev/null
+++ b/Assets/_Game/Scripts/Enemies/AIBrain/EnemyAiBrain.cs.meta
@@ -0,0 +1,11 @@
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