unity3d 攝像機抖動效果 CameraShake

unity3d 攝像機抖動效果 ，利用腳本直接控制；當然也可以選擇使用dotween插件，但到不至於為了使用僅一個功能，就導入了一個插件；

腳本示例:　　

using UnityEngine;
using System.Collections;

public class CameraShake : MonoBehaviour 
{
    public Transform cameraTransform; 
    private Vector3 _currentPosition;        //記錄抖動前的位置
    private float _shakeCD = 0.002f;        //抖動的頻率
    private int _shakeCount = -1;            //設置抖動次數
    private float _shakeTime; 
    void Start ()
    {
        if(cameraTransform == null) cameraTransform = transform;
        
        _currentPosition = cameraTransform.position;    //記錄抖動前的位置
        _shakeCount = Random.Range (50, 60);            //設置抖動次數
    } 
    void Update ()
    {
        if(_shakeTime + _shakeCD < Time.time && _shakeCount > 0)
        {
            _shakeCount --;
            float radio = Random.Range (-0.01f, 0.01f);
            
            if(_shakeCount == 1)    //抖動最后一次時設置為都動前記錄的位置
                radio = 0;
            
            _shakeTime = Time.time;
            cameraTransform.position = _currentPosition + Vector3.one * radio;
        }
    }
}

 另一版本：

　　

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
/// <summary>
/// this Script need a Component Of camera
/// </summary>
public class myCameraShake : MonoBehaviour { 
    private float m_FduringTime = 2.0f;
    [SerializeField]
    private bool m_BisOnShake = true;
    [SerializeField]
    private int  m_IyshakeLength =0;
    private Transform m_TCamera;
    private Vector3 m_OldPos;
    private float mtime = 0;
    void Awake()
    {
        if (this.transform.GetComponent<Camera>() == null && GameObject.FindObjectOfType<myCameraShake>() == null)
        {
            Camera.main.gameObject.AddComponent<myCameraShake>();
        }
        m_TCamera = Camera.main.transform;
        m_OldPos = m_TCamera.position;
    }
    void Start ()
    {
        
    }
    private void Update()
    {
        if (m_BisOnShake)
        {
            mtime+=0.1f; 
            if (mtime < m_FduringTime)
            {
                m_IyshakeLength = Random.Range(-2, 4);
                if(m_IyshakeLength!=0)
                m_TCamera.position = Vector3.Lerp(m_OldPos, new Vector3(m_OldPos.x, m_OldPos.y + m_IyshakeLength, m_OldPos.z), 0.05f);
            }
            else
            {
                m_BisOnShake = !m_BisOnShake;
            }
        }
    } 
}