Camera Shake, WeaponSwitch Animation

Added camera shake. Its not working.. i dont know why.
WeaponSwitch is also not working

Assets/Scripts/Weapons/Grenade.cs

@@ -13,16 +13,24 @@ public class Grenade : MonoBehaviour
     [Tooltip("After how many seconds the explosion Gameobject gets deleted!")]
     [SerializeField] float lengthOfExplosion = 1;
     private float countdown;
+    [Header("Camera Shake Info")] // NOT WOKRING BECAUSE THE CAMERA IS FIXED IN PLACE
+    [SerializeField] bool cameraShakeActive = true;
+    [SerializeField] float cameraShakeRadius = 6f;
+    [SerializeField] float cameraShakeDuration = 1f;
+    [SerializeField] AnimationCurve cameraShakeCurve;
 
     [Header("Explosion GameObject")]
     [SerializeField] GameObject explodeParticle;
     
     [Header("Scripts")]
-    [SerializeField] Weapon weapon; 
+    [SerializeField] Weapon weapon;
 
     [Header("Debug")]
     [SerializeField] bool showExplosion = true;
 
+    // To change it from other scripts
+    public bool CameraShakeActive { get => cameraShakeActive; set => cameraShakeActive = value; }
+
     void Start() {
         countdown = timer;
     }
@@ -43,23 +51,58 @@ public class Grenade : MonoBehaviour
 
     /* - Spawn explosion particles and add force to nearby objects - */
     private void Explode() {
-        if (showExplosion)
-        {
+        if (showExplosion) {
             // Spawns explosion particle
             GameObject spawnedExplosion = Instantiate(explodeParticle, transform.position, transform.rotation);
             // Destroys explosion particle after on second
             Destroy(spawnedExplosion, lengthOfExplosion);
         }
-        
 
+        if (cameraShakeActive) {
+            // Coroutine for camera shake to nearby Players
+            StartCoroutine(cameraShake());
+        }
+        // Coroutine for adding explosion force to nearby objects
+        StartCoroutine(addExplosionForce());
+        
+        // Destroys grenade
+        Destroy(gameObject);
+    }
+
+    IEnumerator cameraShake() {
+        Collider[] colliders = Physics.OverlapSphere(transform.position, cameraShakeRadius);
+        foreach(Collider nearbyObject in colliders){
+            if (nearbyObject.GetComponent<Player>() && nearbyObject.GetType() != typeof(UnityEngine.CharacterController)) {
+                // Start coroutine that shakes the camera
+                StartCoroutine(shaking(nearbyObject));
+            }
+        }
+        yield return null;
+    }
+
+    IEnumerator shaking(Collider obj) {
+        // Getting neck from player
+        GameObject neck = obj.GetComponent<Player>().PlayerNeck;
+        Vector3 startPos = neck.transform.position;
+        float elapsedTime = 0f;
+        while(elapsedTime < cameraShakeDuration) {
+            elapsedTime += Time.deltaTime;
+            float strength = cameraShakeCurve.Evaluate(elapsedTime / cameraShakeDuration);
+            neck.transform.position = startPos + Random.insideUnitSphere * strength;
+        }
+        neck.transform.position = startPos;
+        yield return null;
+    }
+
+    IEnumerator addExplosionForce() {
         // Gets all collider that are in a sphere around the grenade
         Collider[] colliders = Physics.OverlapSphere(transform.position, grenadeRadius);
         // Iterate over all colliders found in radius
-        foreach(Collider nearbyObject in colliders) {
+        foreach (Collider nearbyObject in colliders) {
             // Check if nearby object is a Player and if Collider is not a CharacterController (can be changed to CapsuleCollider)
-            if (nearbyObject.transform.gameObject.GetComponent<Player>() && nearbyObject.GetType() != typeof(UnityEngine.CharacterController)) {
+            if (nearbyObject.GetComponent<Player>() && nearbyObject.GetType() != typeof(UnityEngine.CharacterController)) {
                 // Remove health from player
-                nearbyObject.transform.gameObject.GetComponent<Player>().RemoveHealth(weapon.Damage);
+                nearbyObject.GetComponent<Player>().RemoveHealth(weapon.Damage);
             } else {
                 // Get Rigidbody from nearby object and...
                 Rigidbody rb = nearbyObject.GetComponent<Rigidbody>();
@@ -71,7 +114,6 @@ public class Grenade : MonoBehaviour
             }
         }
         hasExploded = true;
-        // Destroys grenade
-        Destroy(gameObject);
+        yield return null;
     }
 }