76 lines
2.9 KiB
C#
76 lines
2.9 KiB
C#
using UnityEngine;
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using BaseGames.AI;
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namespace BaseGames.Enemies
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{
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/// <summary>
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/// 把 BrainGraph 决策层挂到敌人上：按 id 取共享 AiGraph、构造 AiRuntime、逐帧推进。
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/// 取代旧的行为树组件。
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/// </summary>
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[DisallowMultipleComponent]
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[RequireComponent(typeof(EnemyBase))]
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public sealed class EnemyAiBrain : MonoBehaviour
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{
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[Tooltip("配方路径（约 95% 的敌人）：直接引用 AI 配方资产")]
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[SerializeField] AiRecipeSO _recipe;
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[Tooltip("定制路径（约 5% 的敌人）：[AiDefinition(id)] 的 AiScript 子类 id。与配方二选一")]
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[SerializeField] string _definitionId;
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EnemyBase _enemy;
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EnemyBrainContext _context;
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AiRuntime _runtime;
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public string DefinitionId => _recipe != null ? _recipe.name : _definitionId;
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public string CurrentStateName => _runtime != null ? _runtime.CurrentStateName : "(none)";
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public bool IsSuspended => _runtime != null && _runtime.IsSuspended;
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public AiRuntime Runtime => _runtime;
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void Awake()
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{
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_enemy = GetComponent<EnemyBase>();
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bool hasRecipe = _recipe != null;
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bool hasId = !string.IsNullOrEmpty(_definitionId);
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if (hasRecipe == hasId) // 都配了 或 都没配
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{
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// 根因暴露：配置歧义 / 漏配直接报错，不静默兜底。
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Debug.LogError(
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$"EnemyAiBrain 必须且只能配置一项：_recipe（配方资产）或 _definitionId（AiScript id）。当前 recipe={(hasRecipe ? _recipe.name : "空")}, id='{_definitionId}'：{name}",
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this);
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enabled = false;
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}
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}
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// 在 Start 构造 runtime：确保 EnemyBase.Awake 已发现 Locomotion/子系统后，
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// 再触发入口状态 OnEnter（其会声明 locomotion 意图）。所有 Awake 先于任一 Start 执行。
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void Start()
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{
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IAiDefinition definition = _recipe != null
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? (IAiDefinition)_recipe
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: AiDefinitionRegistry.GetDefinition(_definitionId); // 不存在则抛异常
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var graph = definition.GetOrBuildGraph();
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_context = new EnemyBrainContext(_enemy);
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_runtime = new AiRuntime(graph, _context);
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}
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void Update()
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{
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if (_runtime == null) return;
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float dt = Time.deltaTime;
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_context.Refresh(dt);
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_runtime.Tick(dt);
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}
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/// <summary>对象池复用时由 EnemyBase.OnSpawn 调用：回到 Entry、清临时态。</summary>
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public void ResetBrain()
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{
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_context?.ResetScratch();
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_runtime?.Reset();
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}
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/// <summary>信号入口，供 EnemyBase 转发死亡等事件到决策层。</summary>
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public void Send(AiSignal signal) => _runtime?.Send(signal);
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}
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}
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