fix: fix out of ammo and king audio

IF3210-2024-Unity-AFK/Assets/Audio/Sound/background_horror.mp3.meta

+fileFormatVersion: 2
+guid: ea2d51c544565a141b2077540e1b5697
+AudioImporter:
+  externalObjects: {}
+  serializedVersion: 7
+  defaultSettings:
+    serializedVersion: 2
+    loadType: 0
+    sampleRateSetting: 0
+    sampleRateOverride: 44100
+    compressionFormat: 1
+    quality: 1
+    conversionMode: 0
+    preloadAudioData: 0
+  platformSettingOverrides: {}
+  forceToMono: 0
+  normalize: 1
+  loadInBackground: 0
+  ambisonic: 0
+  3D: 1
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

IF3210-2024-Unity-AFK/Assets/Audio/Sound/possessed_laugh.mp3.meta

+fileFormatVersion: 2
+guid: 6e56d32c9c87b7e43827cc1e6019cebd
+AudioImporter:
+  externalObjects: {}
+  serializedVersion: 7
+  defaultSettings:
+    serializedVersion: 2
+    loadType: 0
+    sampleRateSetting: 0
+    sampleRateOverride: 44100
+    compressionFormat: 1
+    quality: 1
+    conversionMode: 0
+    preloadAudioData: 0
+  platformSettingOverrides: {}
+  forceToMono: 0
+  normalize: 1
+  loadInBackground: 0
+  ambisonic: 0
+  3D: 1
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

IF3210-2024-Unity-AFK/Assets/Audio/Sound/screech.mp3.meta

+fileFormatVersion: 2
+guid: 7d0f696c9bca0d844b9cbf0f4227ad01
+AudioImporter:
+  externalObjects: {}
+  serializedVersion: 7
+  defaultSettings:
+    serializedVersion: 2
+    loadType: 0
+    sampleRateSetting: 0
+    sampleRateOverride: 44100
+    compressionFormat: 1
+    quality: 1
+    conversionMode: 0
+    preloadAudioData: 0
+  platformSettingOverrides: {}
+  forceToMono: 0
+  normalize: 1
+  loadInBackground: 0
+  ambisonic: 0
+  3D: 1
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

IF3210-2024-Unity-AFK/Assets/Code/Scripts/Gun/GunSystem.cs

@@ -80,8 +80,10 @@ public class GunSystem : BaseWeaponController
             Shoot();
         }
 
-        if (bulletsLeft <= 0 && shooting && !reloading) ;
+        if (bulletsLeft <= 0 && shooting && !reloading)
+        {
             PlayOutOfAmmo();
+        }
     }
 
     private void PlayOutOfAmmo()

IF3210-2024-Unity-AFK/Assets/Code/Scripts/Mobs/KingBehaviour.cs

@@ -2,6 +2,7 @@ using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.AI;
+using UnityEngine.UIElements;
 
 public class KingBehaviour : MonoBehaviour
 {
@@ -38,6 +39,10 @@ public class KingBehaviour : MonoBehaviour
 
     public GunSystemMobs gunSystem;
 
+    public AudioClip backgroundMusic;
+    public AudioClip screechAudio;
+    public AudioClip laughAudio;
+    private bool audioChange = true;
 
     // Start is called before the first frame update
     void Start()
@@ -51,6 +56,9 @@ public class KingBehaviour : MonoBehaviour
         kingAnimator.SetBool(attackAnimation, true);
         movementController = GetComponent<CharacterController>();
         StartCoroutine(SpawnKeroco());
+
+        StartCoroutine(PlayBackgroundAudio());
+        StartCoroutine(PlayMobAudio());
     }
 
     // Update is called once per frame
@@ -234,6 +242,31 @@ public class KingBehaviour : MonoBehaviour
         }
     }
 
+    IEnumerator PlayMobAudio()
+    {
+        while (true)
+        {
+            if (audioChange)
+            {
+                AudioManagerScript.Instance.PlaySFX(screechAudio);
+            } else
+            {
+                AudioManagerScript.Instance.PlaySFX(laughAudio);
+            }
+            audioChange = !audioChange;
+            yield return new WaitForSeconds(30.0f);
+        }
+    }
+
+    IEnumerator PlayBackgroundAudio()
+    {
+        while (true)
+        {
+            AudioManagerScript.Instance.PlaySFX(backgroundMusic);
+            yield return new WaitForSeconds(85.0f);
+        }
+    }
+
     private void OnDestroy()
     {
         enemyController.GetComponent<OrbController>().DropOrb(this.transform);