update

.idea/.idea.HALLUCINATE/.idea/workspace.xml

@@ -6,14 +6,17 @@
   <component name="ChangeListManager">
     <list default="true" id="f9183c68-daf0-43b8-be4c-fad79983f91b" name="Changes" comment="">
       <change beforePath="$PROJECT_DIR$/.idea/.idea.HALLUCINATE/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/.idea.HALLUCINATE/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/Assets/Audio/Basic Locomotion/Mixers/FOR AI GAME.mixer" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Audio/Basic Locomotion/Mixers/FOR AI GAME.mixer" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/Assets/Prefabs/NPC/xNPC.prefab" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Prefabs/NPC/xNPC.prefab" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/Assets/Presets/FOR AI GAME.asset" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Presets/FOR AI GAME.asset" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/Assets/Scenes/Cho môn AI/Only AI.unity" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Scenes/Cho môn AI/Only AI.unity" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/Assets/Scripts/AI NPC/ChatBubble.cs" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Scripts/AI NPC/ChatBubble.cs" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/Assets/Scenes/Cho môn AI/Only AI/NavMesh-NavManager 1.asset" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Scenes/Cho môn AI/Only AI/NavMesh-NavManager 1.asset" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/Assets/Scenes/Cho môn AI/Only AI/NavMesh-NavManager 1.asset.meta" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Scenes/Cho môn AI/Only AI/NavMesh-NavManager 1.asset.meta" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/Assets/Scripts/AI NPC/EnemyAI.cs" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Scripts/AI NPC/EnemyAI.cs" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/Assets/Scripts/AI NPC/GeminiService.cs" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Scripts/AI NPC/GeminiService.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/Assets/Scripts/Player/CharacterController/Editor/Resources/vEditorStartupPrefs.asset" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Scripts/Player/CharacterController/Editor/Resources/vEditorStartupPrefs.asset" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/Assets/Scripts/AI NPC/GeminiTest.cs" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Scripts/AI NPC/GeminiTest.cs" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/Assets/Scripts/AI NPC/GerminiNPC.cs" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Scripts/AI NPC/GerminiNPC.cs" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/Assets/Scripts/Player/FootStep/Editor/vFootStepEditor.cs" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Scripts/Player/FootStep/Editor/vFootStepEditor.cs" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/Assets/Scripts/Player/FootStep/Scripts/vFootStep.cs" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Scripts/Player/FootStep/Scripts/vFootStep.cs" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/Assets/Scripts/Player/Generic/Utils/Editor/Resources/EntityPreview/EntityPreview.mat" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Scripts/Player/Generic/Utils/Editor/Resources/EntityPreview/EntityPreview.mat" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/Assets/Third Parties/TextMesh Pro/Resources/Fonts &amp; Materials/LiberationSans SDF - Fallback.asset" beforeDir="false" afterPath="$PROJECT_DIR$/Assets/Third Parties/TextMesh Pro/Resources/Fonts &amp; Materials/LiberationSans SDF - Fallback.asset" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
@@ -184,7 +187,7 @@
       <workItem from="1780364354282" duration="4357000" />
       <workItem from="1780409218377" duration="9852000" />
       <workItem from="1780494322686" duration="643000" />
-      <workItem from="1780633654231" duration="12926000" />
+      <workItem from="1780633654231" duration="20541000" />
     </task>
     <servers />
   </component>

Assets/Prefabs/NPC/xNPC.prefab

@@ -103,7 +103,7 @@ RectTransform:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 3381350595760429543}
-  m_LocalRotation: {x: -0, y: -0, z: -0, w: 1}
+  m_LocalRotation: {x: 0, y: -1, z: 0, w: 0}
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
@@ -111,7 +111,7 @@ RectTransform:
   - {fileID: 6775114823217050358}
   - {fileID: 2685789783496722106}
   m_Father: {fileID: 6442306242859885696}
-  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+  m_LocalEulerAnglesHint: {x: 0, y: -180, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
   m_AnchoredPosition: {x: 0, y: 2.09}
@@ -524,9 +524,13 @@ MonoBehaviour:
   dodgeCooldown: 3
   npcName: Guard
   persona: You are a grumpy guard protecting gold.
-  talkRange: 20
+  talkRange: 5
   talkCooldown: 30
   isTalking: 0
+  suspicionLevel: 0
+  investigationThreshold: 30
+  alertNeighborsThreshold: 70
+  alertRange: 20
 --- !u!195 &5770331367975928816
 NavMeshAgent:
   m_ObjectHideFlags: 0
@@ -669,7 +673,7 @@ PrefabInstance:
       objectReference: {fileID: 0}
     - target: {fileID: 400132, guid: f32cd9f795c1282478d3bc3fbd8b2831, type: 3}
       propertyPath: m_LocalRotation.w
-      value: 0
+      value: 1
       objectReference: {fileID: 0}
     - target: {fileID: 400132, guid: f32cd9f795c1282478d3bc3fbd8b2831, type: 3}
       propertyPath: m_LocalRotation.x
@@ -677,7 +681,7 @@ PrefabInstance:
       objectReference: {fileID: 0}
     - target: {fileID: 400132, guid: f32cd9f795c1282478d3bc3fbd8b2831, type: 3}
       propertyPath: m_LocalRotation.y
-      value: -1
+      value: 0
       objectReference: {fileID: 0}
     - target: {fileID: 400132, guid: f32cd9f795c1282478d3bc3fbd8b2831, type: 3}
       propertyPath: m_LocalRotation.z
@@ -689,7 +693,7 @@ PrefabInstance:
       objectReference: {fileID: 0}
     - target: {fileID: 400132, guid: f32cd9f795c1282478d3bc3fbd8b2831, type: 3}
       propertyPath: m_LocalEulerAnglesHint.y
-      value: -180
+      value: 0
       objectReference: {fileID: 0}
     - target: {fileID: 400132, guid: f32cd9f795c1282478d3bc3fbd8b2831, type: 3}
       propertyPath: m_LocalEulerAnglesHint.z

Assets/Scripts/AI NPC/ConversationManager.cs

@@ -0,0 +1,133 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using System;
+
+namespace Hallucinate.AI
+{
+    public class ConversationManager : MonoBehaviour
+    {
+        public static ConversationManager Instance { get; private set; }
+
+        [Header("Settings")]
+        public int maxSimultaneousConversations = 3;
+        public float maxConversationDuration = 120f; // 2 minutes
+
+        private List<ConversationSession> activeSessions = new List<ConversationSession>();
+
+        private void Awake()
+        {
+            if (Instance == null) Instance = this;
+            else Destroy(gameObject);
+        }
+
+        public bool CanStartConversation()
+        {
+            return activeSessions.Count < maxSimultaneousConversations;
+        }
+
+        public void StartConversation(EnemyAI initiator, EnemyAI responder)
+        {
+            if (!CanStartConversation()) return;
+
+            ConversationSession session = new ConversationSession(initiator, responder, maxConversationDuration);
+            activeSessions.Add(session);
+            StartCoroutine(RunConversation(session));
+        }
+
+        private IEnumerator RunConversation(ConversationSession session)
+        {
+            Debug.Log($"<color=cyan>[ConvManager]</color> Starting: {session.initiator.npcName} & {session.responder.npcName}");
+            
+            // Phase 1: Initiator speaks
+            bool phase1Complete = false;
+            session.RequestDialogue(session.initiator, (success) => phase1Complete = true);
+            
+            float startTime = Time.time;
+            while (!phase1Complete && Time.time < startTime + 10f) yield return null;
+            
+            if (phase1Complete && !session.isInterrupted)
+            {
+                yield return new WaitForSeconds(4f); // Reading time
+
+                // Phase 2: Responder speaks
+                bool phase2Complete = false;
+                session.RequestDialogue(session.responder, (success) => phase2Complete = true);
+                
+                float phase2StartTime = Time.time;
+                while (!phase2Complete && Time.time < phase2StartTime + 10f) yield return null;
+            }
+
+            yield return new WaitForSeconds(4f);
+            EndConversation(session);
+        }
+
+        public void EndConversation(ConversationSession session)
+        {
+            if (activeSessions.Contains(session))
+            {
+                session.Cleanup();
+                activeSessions.Remove(session);
+                Debug.Log($"<color=cyan>[ConvManager]</color> Ended session. Active: {activeSessions.Count}");
+            }
+        }
+
+        public void InterruptConversation(EnemyAI npc)
+        {
+            ConversationSession session = activeSessions.Find(s => s.initiator == npc || s.responder == npc);
+            if (session != null)
+            {
+                session.isInterrupted = true;
+                EndConversation(session);
+            }
+        }
+    }
+
+    public class ConversationSession
+    {
+        public EnemyAI initiator;
+        public EnemyAI responder;
+        public float durationLimit;
+        public bool isInterrupted;
+
+        public ConversationSession(EnemyAI initiator, EnemyAI responder, float limit)
+        {
+            this.initiator = initiator;
+            this.responder = responder;
+            this.durationLimit = limit;
+            
+            initiator.isTalking = true;
+            responder.isTalking = true;
+
+            // Set references for Gizmos and Facing
+            initiator.SetTalkingPartner(responder);
+            responder.SetTalkingPartner(initiator);
+        }
+
+        public void RequestDialogue(EnemyAI speaker, Action<bool> callback)
+        {
+            if (isInterrupted) { callback?.Invoke(false); return; }
+
+            EnemyAI listener = (speaker == initiator) ? responder : initiator;
+            
+            // Face each other
+            speaker.FaceTarget(listener.transform.position);
+            listener.FaceTarget(speaker.transform.position);
+
+            string prompt = $"You are {speaker.npcName} talking to {listener.npcName}. Previous context: None. " +
+                           "Keep it natural and short.";
+
+            GeminiService.Instance.GetResponse(speaker.persona, prompt, (json) => {
+                if (isInterrupted) { callback?.Invoke(false); return; }
+                speaker.ProcessDialogueResult(json);
+                callback?.Invoke(true);
+            });
+        }
+
+        public void Cleanup()
+        {
+            if (initiator != null) initiator.isTalking = false;
+            if (responder != null) responder.isTalking = false;
+        }
+    }
+}

Assets/Scripts/AI NPC/ConversationManager.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: ebf63e5e8f429234b89a746833c4ca4e

Assets/Scripts/AI NPC/EnemyAI.cs

@@ -1,8 +1,13 @@
+using System;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.AI;
 using System.Linq;
+using Random = UnityEngine.Random;
+
+[Serializable]
+public class DialogueResult { public string text; public float speedMod; public float suspicionMod; }
 
 // Quy trình ưu tiên: Né đòn --> Bắn hạ (Artifact) --> Đuổi theo (Vector) --> Điều tra --> Nói chuyện --> Đi tuần
 [RequireComponent(typeof(NavMeshAgent))]
@@ -42,13 +47,19 @@ public class EnemyAI : MonoBehaviour
 
     [Header("Conversation Settings")]
     public string npcName = "Guard";
-    [TextArea] public string persona = "You are a grumpy guard protecting gold.";
+    [TextArea] public string persona = "You are a bored security guard. You love coffee and hate night shifts.";
-    public float talkRange = 10f;
+    public float talkRange = 12f;
-    public float talkCooldown = 15f;
+    public float talkCooldown = 60f;
     private float lastTalkTime;
     public bool isTalking; // Public để debug
     private EnemyAI talkingPartner;
     private Hallucinate.UI.ChatBubble chatBubble;
+
+    [Header("Suspicion Settings")]
+    public float suspicionLevel = 0f;
+    public float investigationThreshold = 30f;
+    public float alertNeighborsThreshold = 70f;
+    public float alertRange = 20f;
     
     public Node rootNode;
 
@@ -59,7 +70,6 @@ public class EnemyAI : MonoBehaviour
         fov = GetComponent<FieldOfView>();
         chatBubble = GetComponentInChildren<Hallucinate.UI.ChatBubble>(true);
 
-        // Rigidbody setup cho Unity 6
         rb.isKinematic = true;
         rb.freezeRotation = true;
 
@@ -69,18 +79,7 @@ public class EnemyAI : MonoBehaviour
             if (playerObj != null) player = playerObj.transform;
         }
 
-        /* 
-        // Tạm thời comment đoạn này để tránh lỗi Tag chưa định nghĩa
-        if (patrolWaypoints == null || patrolWaypoints.Length == 0)
-        {
-            patrolWaypoints = GameObject.FindGameObjectsWithTag("PatrolPoint")
-                .Select(go => go.transform).ToArray();
-        }
-        */
-
         InitTree();
-        
-        Debug.Log($"<color=white>[AI {npcName}] Init complete. Waypoints: {patrolWaypoints.Length}</color>");
     }
 
     void InitTree()
@@ -107,12 +106,10 @@ public class EnemyAI : MonoBehaviour
     {
         if (player == null) return;
 
-        // An toàn cho NavMeshAgent
+        if (!agent.isOnNavMesh) return;
-        if (!agent.isOnNavMesh)
+
-        {
+        // Decay suspicion
-            Debug.LogWarning($"[AI {npcName}] NPC is NOT on NavMesh!");
+        suspicionLevel = Mathf.Max(0, suspicionLevel - Time.deltaTime * 0.5f);
-            return;
-        }
 
         if (!isTalking && !isDodging && agent.isStopped) 
             agent.isStopped = false;
@@ -139,13 +136,21 @@ public class EnemyAI : MonoBehaviour
     private NodeState CheckCanSeePlayer()
     {
         bool canSee = fov != null && fov.canSeePlayer;
-        if (canSee) StopConversation();
+        if (canSee) { StopConversation(); AlertNeighbors(); suspicionLevel = 100; }
         return canSee ? NodeState.Success : NodeState.Failure;
     }
 
     private NodeState CheckHasInvestigateTarget()
     {
-        return (fov != null && fov.lastKnownPlayerPosition != Vector3.zero) ? NodeState.Success : NodeState.Failure;
+        if (fov != null && fov.lastKnownPlayerPosition != Vector3.zero)
+        {
+            if (suspicionLevel > investigationThreshold)
+            {
+                // Randomly decide to check or stay on patrol
+                if (Random.value < (suspicionLevel / 100f)) return NodeState.Success;
+            }
+        }
+        return NodeState.Failure;
     }
 
     private NodeState CheckCanTalkToNPC()
@@ -154,7 +159,14 @@ public class EnemyAI : MonoBehaviour
         if (Time.time < lastTalkTime + talkCooldown) return NodeState.Failure;
         if (isTalking) return NodeState.Success;
 
-        // Quét tìm NPC
+        if (Hallucinate.AI.ConversationManager.Instance == null) 
+        {
+            Debug.LogError($"[AI {npcName}] ConversationManager Instance is NULL!");
+            return NodeState.Failure;
+        }
+
+        if (!Hallucinate.AI.ConversationManager.Instance.CanStartConversation()) return NodeState.Failure;
+
         Collider[] hitColliders = Physics.OverlapSphere(transform.position, talkRange);
         foreach (var hit in hitColliders)
         {
@@ -163,10 +175,12 @@ public class EnemyAI : MonoBehaviour
             EnemyAI other = hit.GetComponentInParent<EnemyAI>();
             if (other != null && !other.isTalking && Time.time >= other.lastTalkTime + talkCooldown)
             {
-                // Chỉ ID nhỏ hơn gọi để tránh trùng
+                // Kiểm tra khoảng cách thực tế giữa 2 NPC
-                if (gameObject.GetInstanceID() < other.gameObject.GetInstanceID())
+                float dist = Vector3.Distance(transform.position, other.transform.position);
+                if (dist <= talkRange && gameObject.GetInstanceID() < other.gameObject.GetInstanceID())
                 {
-                    talkingPartner = other;
+                    Debug.Log($"<color=green>[AI {npcName}]</color> Found partner: {other.npcName}. Starting conversation.");
+                    Hallucinate.AI.ConversationManager.Instance.StartConversation(this, other);
                     return NodeState.Success;
                 }
             }
@@ -178,50 +192,75 @@ public class EnemyAI : MonoBehaviour
 
     #region ACTIONS
 
+    public void HearNoise(Vector3 location, float volume)
+    {
+        suspicionLevel += volume * 15f;
+        if (fov != null) fov.lastKnownPlayerPosition = location;
+        if (suspicionLevel >= alertNeighborsThreshold) AlertNeighbors();
+        StopConversation();
+        Debug.Log($"<color=orange>[AI {npcName}]</color> Heard noise! Suspicion: {suspicionLevel}");
+    }
+
+    public void AlertNeighbors()
+    {
+        Collider[] hitColliders = Physics.OverlapSphere(transform.position, alertRange);
+        foreach (var hit in hitColliders)
+        {
+            EnemyAI neighbor = hit.GetComponentInParent<EnemyAI>();
+            if (neighbor != null && neighbor != this)
+            {
+                neighbor.suspicionLevel = Mathf.Max(neighbor.suspicionLevel, 50f);
+                if (fov != null && neighbor.fov != null) neighbor.fov.lastKnownPlayerPosition = fov.lastKnownPlayerPosition;
+            }
+        }
+    }
+
     private NodeState ActionTalk()
     {
-        if (talkingPartner == null) return NodeState.Failure;
+        if (isTalking)
-        if (!isTalking)
         {
-            isTalking = true;
             agent.isStopped = true;
-            FaceTarget(talkingPartner.transform.position);
+
-            
+            // Nếu bạn diễn đi quá xa trong khi đang nói, ngắt hội thoại
-            Debug.Log($"<color=yellow>[AI {npcName}] Talking to {talkingPartner.npcName}</color>");
+            if (talkingPartner != null)
-            
+            {
-            string prompt = $"You are {npcName}. Speak 1 short sentence in English to your colleague {talkingPartner.npcName} about the shift.";
+                if (Vector3.Distance(transform.position, talkingPartner.transform.position) > talkRange + 2f)
-            Hallucinate.AI.GeminiService.Instance.GetResponse(persona, prompt, (response) => {
+                {
-                if (chatBubble != null) chatBubble.Show(response);
+                    Debug.Log($"[AI {npcName}] Partner moved too far. Ending conversation.");
-                Invoke(nameof(EndConversation), 5f);
+                    StopConversation();
-            });
+                    return NodeState.Failure;
-            talkingPartner.OnPartnerTalked(this);
+                }
+            }
+
+            return NodeState.Running;
         }
-        return NodeState.Running;
+        return NodeState.Failure;
     }
 
-    public void OnPartnerTalked(EnemyAI partner)
+    public void ProcessDialogueResult(string json)
     {
-        isTalking = true;
+        try
-        talkingPartner = partner;
+        {
-        agent.isStopped = true;
+            DialogueResult result = JsonUtility.FromJson<DialogueResult>(json);
-        FaceTarget(partner.transform.position);
+            if (chatBubble != null) chatBubble.Show(result.text);
-        Invoke(nameof(EndConversation), 6f);
+            
-    }
+            // Apply minor stat mods
-
+            moveSpeed += result.speedMod;
-    private void EndConversation()
+            suspicionLevel = Mathf.Clamp(suspicionLevel + result.suspicionMod, 0, 100);
-    {
+            lastTalkTime = Time.time;
-        isTalking = false;
+            
-        lastTalkTime = Time.time;
+            Debug.Log($"<color=green>[AI {npcName}]</color> Conv result: {result.text} | SpeedMod: {result.speedMod}");
-        if (agent != null && agent.isOnNavMesh) agent.isStopped = false;
+        }
-        talkingPartner = null;
+        catch { if (chatBubble != null) chatBubble.Show(json); }
     }
 
     private void StopConversation()
     {
-        if (!isTalking) return;
+        if (isTalking && Hallucinate.AI.ConversationManager.Instance != null)
-        CancelInvoke(nameof(EndConversation));
+        {
-        EndConversation();
+            Hallucinate.AI.ConversationManager.Instance.InterruptConversation(this);
-        if (chatBubble != null) chatBubble.Show("Wait, what's that?!", 2f);
+            if (chatBubble != null) chatBubble.Show("Wait, what was that?!", 2f);
+        }
     }
 
     private NodeState ActionPatrol()
@@ -229,7 +268,7 @@ public class EnemyAI : MonoBehaviour
         if (patrolWaypoints == null || patrolWaypoints.Length == 0) return NodeState.Failure;
 
         agent.isStopped = false;
-        agent.speed = moveSpeed * 0.5f;
+        agent.speed = moveSpeed * (suspicionLevel > 20 ? 0.7f : 0.5f); // Walk faster if suspicious
         
         var target = patrolWaypoints[currentWaypointIndex];
         agent.SetDestination(target.position);
@@ -259,10 +298,16 @@ public class EnemyAI : MonoBehaviour
         agent.isStopped = false;
         agent.speed = moveSpeed * 0.7f;
         agent.SetDestination(fov.lastKnownPlayerPosition);
+        
         if (Vector3.Distance(transform.position, fov.lastKnownPlayerPosition) < 1.5f)
         {
-            fov.lastKnownPlayerPosition = Vector3.zero;
+            currentWaitTime += Time.deltaTime;
-            return NodeState.Success;
+            if (currentWaitTime > 3f) // Look around for 3 seconds
+            {
+                fov.lastKnownPlayerPosition = Vector3.zero;
+                suspicionLevel *= 0.5f; // Decrease suspicion after check
+                return NodeState.Success;
+            }
         }
         return NodeState.Running;
     }
@@ -300,7 +345,12 @@ public class EnemyAI : MonoBehaviour
         isDodging = false;
     }
 
-    private void FaceTarget(Vector3 pos)
+    public void SetTalkingPartner(EnemyAI partner)
+    {
+        talkingPartner = partner;
+    }
+
+    public void FaceTarget(Vector3 pos)
     {
         Vector3 dir = (pos - transform.position);
         dir.y = 0;

Assets/Scripts/AI NPC/GeminiService.cs

@@ -21,9 +21,21 @@ namespace Hallucinate.AI
     public class GeminiService : MonoBehaviour
     {
         public static GeminiService Instance { get; private set; }
+        private int activeRequests = 0;
+        private const int MAX_CONCURRENT_REQUESTS = 5;
 
-        [SerializeField] private string apiKey = "AQ.Ab8RN6I2hU_p8yHiPNNHtWzYBiLugbPP22gC6lzTWaYEWj4v0g"; // Replace with your key
+        [SerializeField] private string[] apiKeys = { "YOUR_KEY_1", "YOUR_KEY_2" }; 
-        [SerializeField] private string geminiURL = "https://generativelanguage.googleapis.com/v1beta/models/gemini-flash-latest:generateContent";
+        private int currentKeyIndex = 0;
+
+        [SerializeField] private string geminiURL = "https://generativelanguage.googleapis.com/v1beta/models/gemini-1.5-flash:generateContent";
+        private float nextRequestTime = 0f;
+
+        private string[] fallbackDialogues = {
+            "{ \"text\": \"Nice weather, isn't it?\", \"speedMod\": 0.0, \"suspicionMod\": -5.0 }",
+            "{ \"text\": \"Did you hear something? Probably just a rat.\", \"speedMod\": 0.0, \"suspicionMod\": 2.0 }",
+            "{ \"text\": \"I'm so tired of this shift.\", \"speedMod\": -0.1, \"suspicionMod\": 0.0 }",
+            "{ \"text\": \"Don't forget the coffee break later.\", \"speedMod\": 0.0, \"suspicionMod\": -2.0 }"
+        };
 
         private void Awake()
         {
@@ -31,24 +43,50 @@ namespace Hallucinate.AI
             else { Destroy(gameObject); }
         }
 
+        private string GetNextKey()
+        {
+            if (apiKeys == null || apiKeys.Length == 0) return "";
+            string key = apiKeys[currentKeyIndex];
+            currentKeyIndex = (currentKeyIndex + 1) % apiKeys.Length;
+            return key;
+        }
+
         public void GetResponse(string persona, string prompt, Action<string> onComplete)
         {
+            if (Time.time < nextRequestTime)
+            {
+                Debug.LogWarning("[Gemini] API is cooling down. Using fallback.");
+                onComplete?.Invoke(fallbackDialogues[UnityEngine.Random.Range(0, fallbackDialogues.Length)]);
+                return;
+            }
+
+            if (activeRequests >= MAX_CONCURRENT_REQUESTS) 
+            {
+                onComplete?.Invoke(fallbackDialogues[UnityEngine.Random.Range(0, fallbackDialogues.Length)]);
+                return; 
+            }
             StartCoroutine(PostRequest(persona, prompt, onComplete));
         }
 
         private IEnumerator PostRequest(string persona, string prompt, Action<string> onComplete)
         {
+            activeRequests++;
+            
+            string jsonInstruction = " Respond ONLY with a JSON object: { 'text': 'your dialogue', 'speedMod': 0.0, 'suspicionMod': 0.0 }.";
+            string escapedPersona = persona.Replace("\"", "\\\"");
+            string escapedPrompt = prompt.Replace("\"", "\\\"");
+
             var jsonBody = $@"{{
-                ""systemInstruction"": {{""parts"": [{{ ""text"": ""{persona}"" }}]}},
+                ""systemInstruction"": {{""parts"": [{{ ""text"": ""{escapedPersona} {jsonInstruction}"" }}]}},
-                ""contents"": [{{""parts"": [{{ ""text"": ""{prompt}"" }}]}}],
+                ""contents"": [{{""parts"": [{{ ""text"": ""{escapedPrompt}"" }}]}}],
                 ""generationConfig"": {{
-                    ""maxOutputTokens"": 60,
+                    ""maxOutputTokens"": 100,
-                    ""temperature"": 0.7
+                    ""temperature"": 0.7,
+                    ""responseMimeType"": ""application/json""
                 }}
             }}";
 
-            var requestURL = $"{geminiURL}?key={apiKey}";
+            var requestURL = $"{geminiURL}?key={GetNextKey()}";
-
 
             using (var request = new UnityWebRequest(requestURL, "POST"))
             {
@@ -61,34 +99,25 @@ namespace Hallucinate.AI
 
                 if (request.result == UnityWebRequest.Result.Success)
                 {
-                    string rawResponse = request.downloadHandler.text;
+                    var response = JsonUtility.FromJson<GeminiResponse>(request.downloadHandler.text);
-                    try
+                    if (response?.candidates?.Length > 0 && response.candidates[0].content?.parts?.Length > 0)
                     {
-                        var response = JsonUtility.FromJson<GeminiResponse>(rawResponse);
+                        onComplete?.Invoke(response.candidates[0].content.parts[0].text);
-                        if (response != null && 
-                            response.candidates != null && 
-                            response.candidates.Length > 0 && 
-                            response.candidates[0].content != null && 
-                            response.candidates[0].content.parts != null && 
-                            response.candidates[0].content.parts.Length > 0)
-                        {
-                            onComplete?.Invoke(response.candidates[0].content.parts[0].text);
-                        }
-                        else
-                        {
-                            Debug.LogWarning($"[Gemini] Response structure invalid or blocked. Raw: {rawResponse}");
-                        }
-                    }
-                    catch (Exception e) 
-                    { 
-                        Debug.LogError($"[Gemini] JSON Parse Error: {e.Message}\nRaw Response: {rawResponse}"); 
                     }
                 }
                 else
                 {
                     Debug.LogError($"[Gemini] API Error: {request.error}");
+                    if (request.responseCode == 429) 
+                    {
+                        nextRequestTime = Time.time + 60f; // Lock API for 1 minute
+                        Debug.LogWarning("Quota Exceeded. API locked for 60s. Using fallback.");
+                    }
+                    onComplete?.Invoke(fallbackDialogues[UnityEngine.Random.Range(0, fallbackDialogues.Length)]);
                 }
             }
+
+            activeRequests--;
         }
     }
 }

Assets/Scripts/AI NPC/GeminiTest.cs

@@ -17,7 +17,12 @@ public class GeminiTest : MonoBehaviour
         string testPrompt = "Chào bạn, nếu bạn nhận được tin nhắn này, hãy trả lời: 'Kết nối Gemini thành công!'";
 
         GeminiService.Instance.GetResponse(testPersona, testPrompt, (response) => {
-            Debug.Log($"<color=green>[Gemini Test] Phản hồi từ API:</color> {response}");
+            string finalMsg = response;
+            try {
+                DialogueResult result = JsonUtility.FromJson<DialogueResult>(response);
+                finalMsg = result.text;
+            } catch { }
+            Debug.Log($"<color=green>[Gemini Test] Phản hồi từ API:</color> {finalMsg}");
         });
     }
 }

Assets/Scripts/AI NPC/GerminiNPC.cs

@@ -67,12 +67,17 @@ public class GerminiNPC : MonoBehaviour
         string prompt = $"Ta muốn bán cho ông món đồ này: {playerHeldItem}";
         
         Hallucinate.AI.GeminiService.Instance.GetResponse(npcPersona, prompt, (response) => {
-            Debug.Log($"<color=green>Tom:</color> {response}");
+            string finalMsg = response;
+            try {
+                DialogueResult result = JsonUtility.FromJson<DialogueResult>(response);
+                finalMsg = result.text;
+            } catch { }
+
+            Debug.Log($"<color=green>Tom:</color> {finalMsg}");
             AudioManager.Instance?.Play(responseSound, position: transform.position);
             
-            // Nếu có ChatBubble gắn kèm thì hiển thị luôn
             var bubble = GetComponentInChildren<Hallucinate.UI.ChatBubble>(true);
-            if (bubble != null) bubble.Show(response);
+            if (bubble != null) bubble.Show(finalMsg);
         });
 
         yield break;

Assets/Scripts/AI NPC/NoiseEmitter.cs

@@ -0,0 +1,32 @@
+using UnityEngine;
+
+namespace Hallucinate.AI
+{
+    public class NoiseEmitter : MonoBehaviour
+    {
+        [Header("Settings")]
+        public float defaultNoiseRange = 10f;
+        public LayerMask npcLayer;
+
+        public void EmitNoise(float volumeMultiplier = 1f)
+        {
+            float range = defaultNoiseRange * volumeMultiplier;
+            Collider[] hitColliders = Physics.OverlapSphere(transform.position, range, npcLayer);
+
+            foreach (var hit in hitColliders)
+            {
+                EnemyAI npc = hit.GetComponentInParent<EnemyAI>();
+                if (npc != null)
+                {
+                    npc.HearNoise(transform.position, volumeMultiplier);
+                }
+            }
+        }
+
+        private void OnDrawGizmosSelected()
+        {
+            Gizmos.color = new Color(1, 1, 0, 0.3f);
+            Gizmos.DrawWireSphere(transform.position, defaultNoiseRange);
+        }
+    }
+}

Assets/Scripts/AI NPC/NoiseEmitter.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 67d06596d1741d34594e4a68adcaf257

Assets/Scripts/Player/FootStep/Editor/vFootStepEditor.cs

@@ -38,6 +38,13 @@ namespace Invector
                 EditorGUILayout.PropertyField(serializedObject.FindProperty("_useTriggerEnter"));             
                 serializedObject.FindProperty("debugTextureName").boolValue = EditorGUILayout.Toggle("Debug Texture Name", serializedObject.FindProperty("debugTextureName").boolValue);
 
+                GUILayout.BeginVertical("box");
+                GUILayout.Box("AI Noise Settings", GUILayout.ExpandWidth(true));
+                EditorGUILayout.PropertyField(serializedObject.FindProperty("emitAINoise"));
+                EditorGUILayout.PropertyField(serializedObject.FindProperty("aiNoiseRange"));
+                EditorGUILayout.PropertyField(serializedObject.FindProperty("npcLayer"));
+                GUILayout.EndVertical();
+
                 if (serializedObject.FindProperty("animationType").enumValueIndex == (int)AnimationType.Humanoid)
                 {
                     GUILayout.BeginHorizontal("box");

Assets/Scripts/Player/FootStep/Scripts/vFootStep.cs

@@ -20,6 +20,11 @@ namespace Invector
         public bool SpawnParticle { get { return _spawnParticle; } set { _spawnParticle = value; } }
         public bool SpawnStepMark { get { return _spawnStepMark; } set { _spawnStepMark = value; } }
 
+        [Header("AI Noise Settings")]
+        public bool emitAINoise = true;
+        public float aiNoiseRange = 10f;
+        public LayerMask npcLayer;
+
         protected int surfaceIndex = 0;
         protected Terrain terrain;
         protected TerrainCollider terrainCollider;
@@ -248,6 +253,37 @@ namespace Invector
                 currentFootStep.spawnParticleEffect = SpawnParticle;
                 currentFootStep.spawnStepMarkEffect = SpawnStepMark;
                 SpawnSurfaceEffect(currentFootStep);
+
+                if (emitAINoise) EmitAINoise();
+            }
+        }
+
+        protected virtual void EmitAINoise()
+        {
+            float currentRange = aiNoiseRange;
+            float currentVolume = Volume;
+
+            // Kiểm tra trạng thái ngồi từ Animator
+            Animator anim = GetComponent<Animator>();
+            if (anim != null)
+            {
+                // Nếu đang ngồi (IsCrouching = true), giảm 50% vùng phát hiện và âm lượng
+                if (anim.GetBool("IsCrouching"))
+                {
+                    currentRange *= 0.5f;
+                    currentVolume *= 0.5f;
+                }
+            }
+
+            // Tìm tất cả Collider trong bán kính tiếng động thuộc Layer NPC
+            Collider[] hitColliders = Physics.OverlapSphere(transform.position, currentRange, npcLayer);
+            foreach (var hit in hitColliders)
+            {
+                var npc = hit.GetComponentInParent<EnemyAI>();
+                if (npc != null)
+                {
+                    npc.HearNoise(transform.position, currentVolume);
+                }
             }
         }
 

Assets/Scripts/Player/Generic/Utils/Editor/Resources/EntityPreview/EntityPreview.mat

@@ -115,7 +115,7 @@ Material:
     - _ZWrite: 0
     m_Colors:
     - _CameraFadeParams: {r: 0, g: Infinity, b: 0, a: 0}
-    - _Color: {r: 0.6132076, g: 0.1454958, b: 0.118592024, a: 0.1882353}
+    - _Color: {r: 1, g: 0.8260788, b: 0.08962262, a: 0.25}
     - _Emission: {r: 0, g: 0, b: 0, a: 0}
     - _EmissionColor: {r: 0, g: 0, b: 0, a: 1}
     - _Flip: {r: 1, g: 1, b: 1, a: 1}
@@ -123,6 +123,6 @@ Material:
     - _SoftParticleFadeParams: {r: 0, g: 0, b: 0, a: 0}
     - _SpecColor: {r: 0, g: 0, b: 0, a: 0}
     - _Specular: {r: 1, g: 1, b: 1, a: 0}
-    - _TintColor: {r: 0.6132076, g: 0.1454958, b: 0.118592024, a: 0.1882353}
+    - _TintColor: {r: 1, g: 0.8260788, b: 0.08962262, a: 0.25}
   m_BuildTextureStacks: []
   m_AllowLocking: 1