3DTD/Assets/Scripts/Camera/CameraShake.cs

using Cinemachine;
using UnityEngine;

public class CameraShake : MonoBehaviour
{
    [SerializeField]private CinemachineFreeLook v_Camera;
    private float shakeTimer;

    public static CameraShake Instance;

    private void Start()
    {
        if (Instance != this)
            Destroy(Instance);
        Instance = this;
    }

    public void ShakeCamera(float intensity, float time)
    {
        CinemachineBasicMultiChannelPerlin multiChannelPerlin = v_Camera.GetComponent<CinemachineBasicMultiChannelPerlin>();

        multiChannelPerlin.m_AmplitudeGain = intensity;
        shakeTimer = time;
    }

    private void Update()
    {
        if (shakeTimer > 0)
        {
            shakeTimer -= Time.deltaTime;
            if (shakeTimer <= 0f)
            {
                CinemachineBasicMultiChannelPerlin multiChannelPerlin = v_Camera.GetComponent<CinemachineBasicMultiChannelPerlin>();

                multiChannelPerlin.m_AmplitudeGain = 0f;

            }
        }
    }
}