feat(ai): E001(草蛭) AiScript 定义——巡逻/追击/搜查(接触伤害杂兵)

2026-07-03 15:03:27 +08:00
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+using BaseGames.AI;
+
+namespace BaseGames.Enemies
+{
+    /// <summary>
+    /// E001（草蛭）的 AI 定义：巡逻 → 追击（接触即伤害，无需攻击能力）→ 搜查 → 巡逻。
+    /// 数值目前用字面量常量；后续可外挂 SO 做热调。
+    /// </summary>
+    [AiDefinition("E001")]
+    public sealed class E001CaoZhiAi : AiScript
+    {
+        const float LoseTimeout = 2.5f; // 丢失玩家判定
+        const float SearchTime = 3f;    // 搜查后返回巡逻
+
+        protected override void Build(BrainBuilder b)
+        {
+            b.Entry("Patrol");
+
+            // 死亡：全局事件，终止决策
+            b.Global().To("Dead").OnEvent(AiSignal.Died);
+
+            b.State("Patrol")
+                .Tick(c => c.Mover.WalkRandom())
+                .To("Chase").When(c => c.Sensor.SeesPlayer(), "SeesPlayer");
+
+            b.State("Chase")
+                .OnEnter(c => c.Mover.FacePlayer())
+                .Tick(c => c.Mover.MoveTo(c.Sensor.LastKnown)) // 冲向玩家，接触即由 BodyContactDamage 造成伤害
+                .To("Search").When(c => c.Sensor.LostFor(LoseTimeout), "LostFor");
+
+            b.State("Search")
+                .OnEnter(c => c.Mover.LookAround())
+                .To("Chase").When(c => c.Sensor.SeesPlayer(), "SeesPlayer")
+                .To("Patrol").After(SearchTime);
+
+            b.State("Dead")
+                .OnEnter(c => c.Mover.Stop());
+        }
+    }
+}
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