update

Assets/Scripts/AI NPC/EnemyAI.cs

@@ -37,6 +37,16 @@ public class EnemyAI : MonoBehaviour
     public float maxShootDelay = 3f;
     public float rotateSpeed = 50f;
 
+    [Header("Conversation")]
+    public string npcName = "Guard";
+    public string persona = "You are a grumpy guard protecting gold.";
+    public float talkRange = 4f;
+    public float talkCooldown = 30f;
+    private float lastTalkTime;
+    private bool isTalking;
+    private EnemyAI talkingPartner;
+    private Hallucinate.UI.ChatBubble chatBubble;
+
     [Header("Dodge Mechanics")]
     public float dodgeForce = 8f;         // Lực đẩy văng đi
     public float dodgeDuration = 0.5f;    // Thời gian nhào lộn/né
@@ -54,6 +64,7 @@ public class EnemyAI : MonoBehaviour
     {
         agent = GetComponent<NavMeshAgent>();
         rb = GetComponent<Rigidbody>();
+        chatBubble = GetComponentInChildren<Hallucinate.UI.ChatBubble>(true);
         // Tự động tìm các điểm tuần tra nếu chưa gán
         if (patrolPoints == null || patrolPoints.Length == 0)
         {
@@ -148,7 +159,14 @@ public class EnemyAI : MonoBehaviour
             new TaskNode(ActionInvestigate)
         });
 
-        // 4. Không có gì -> Tuần tra theo điểm
+        // 4. Gần NPC khác -> nói chuyện (Mới)
+        var talkSequence = new Sequence(new List<Node>
+        {
+            new TaskNode(CheckCanTalkToNPC),
+            new TaskNode(ActionTalk)
+        });
+
+        // 5. Không có gì -> Tuần tra theo điểm
         var patrolNode = new TaskNode(ActionPatrol);
 
         behaviorTreeRoot = new Selector(new List<Node>
@@ -156,19 +174,46 @@ public class EnemyAI : MonoBehaviour
             laserSequence,
             chaseSequence,
             investigateSequence,
+            talkSequence,
             patrolNode
         });
     }
 
     #region CONDITIONS
 
+    private NodeState CheckCanTalkToNPC()
+    {
+        if (playerHasArtifact || canSeePlayer) return NodeState.Failure;
+        if (Time.time < lastTalkTime + talkCooldown) return NodeState.Failure;
+        if (isTalking) return NodeState.Success;
+
+        // Tìm NPC gần nhất
+        Collider[] hitColliders = Physics.OverlapSphere(transform.position, talkRange);
+        foreach (var hit in hitColliders)
+        {
+            if (hit.gameObject != gameObject && hit.CompareTag("Enemy"))
+            {
+                EnemyAI other = hit.GetComponent<EnemyAI>();
+                if (other != null && !other.isTalking && Time.time >= other.lastTalkTime + talkCooldown)
+                {
+                    talkingPartner = other;
+                    return NodeState.Success;
+                }
+            }
+        }
+
+        return NodeState.Failure;
+    }
+
     private NodeState CheckHasArtifact()
     {
+        if (playerHasArtifact) StopConversation();
         return playerHasArtifact ? NodeState.Success : NodeState.Failure;
     }
 
     private NodeState CheckCanSeePlayer()
     {
+        if (canSeePlayer) StopConversation();
         return canSeePlayer ? NodeState.Success : NodeState.Failure;
     }
 
@@ -263,6 +308,78 @@ public class EnemyAI : MonoBehaviour
         Debug.Log("Laser Shot!");
     }
 
+    private NodeState ActionTalk()
+    {
+        if (talkingPartner == null) return NodeState.Failure;
+
+        if (!isTalking)
+        {
+            isTalking = true;
+            agent.isStopped = true;
+            
+            // Xoay về phía bạn
+            FaceTarget(talkingPartner.transform.position);
+
+            // Bắt đầu hội thoại qua Gemini
+            StartNPCConversation();
+        }
+
+        return NodeState.Running;
+    }
+
+    private void StartNPCConversation()
+    {
+        string prompt = $"You are {npcName}. You are talking to your fellow guard {talkingPartner.npcName}. " +
+                       "Keep it short (1 sentence). Topic: gold security or complaining about work.";
+
+        Hallucinate.AI.GeminiService.Instance.GetResponse(persona, prompt, (response) => {
+            if (chatBubble != null) chatBubble.Show(response);
+            
+            // Hẹn giờ kết thúc hội thoại
+            Invoke(nameof(EndConversation), 5f);
+        });
+
+        // Thông báo cho bạn diễn cũng dừng lại để "nghe"
+        talkingPartner.OnPartnerTalked(this);
+    }
+
+    public void OnPartnerTalked(EnemyAI partner)
+    {
+        isTalking = true;
+        talkingPartner = partner;
+        agent.isStopped = true;
+        FaceTarget(partner.transform.position);
+        
+        // Chờ bạn nói xong mới phản hồi
+        Invoke(nameof(EndConversation), 6f);
+    }
+
+    private void EndConversation()
+    {
+        isTalking = false;
+        lastTalkTime = Time.time;
+        if (agent != null) agent.isStopped = false;
+        talkingPartner = null;
+    }
+
+    private void StopConversation()
+    {
+        if (!isTalking) return;
+        CancelInvoke(nameof(EndConversation));
+        EndConversation();
+        if (chatBubble != null) chatBubble.Show("Suỵt! Có gì đó không ổn...", 2f);
+    }
+
+    private void FaceTarget(Vector3 targetPos)
+    {
+        Vector3 dir = targetPos - transform.position;
+        dir.y = 0;
+        if (dir != Vector3.zero)
+        {
+            transform.rotation = Quaternion.LookRotation(dir);
+        }
+    }
+
     #endregion
     #region DODGE MECHANIC