using UnityEngine;

using System.Collections;

// usage: attach this script into camera, call Shake() method to start

// source: http://answers.unity3d.com/answers/992509/view.html

public class CameraShake : MonoBehaviour

{

public bool shakePosition;

public bool shakeRotation;

public float shakeIntensityMin = 0.1f;

public float shakeIntensityMax = 0.5f;

public float shakeDecay = 0.02f;

private Vector3 OriginalPos;

private Quaternion OriginalRot;

private bool isShakeRunning = false;

// call this function to start shaking

public void Shake()

{

OriginalPos = transform.position;

OriginalRot = transform.rotation;

StartCoroutine("ProcessShake");

}

IEnumerator ProcessShake()

{

if (!isShakeRunning)

{

isShakeRunning = true;

float currentShakeIntensity = Random.Range(shakeIntensityMin, shakeIntensityMax);

while (currentShakeIntensity > 0)

{

if (shakePosition)

{

transform.position = OriginalPos + Random.insideUnitSphere * currentShakeIntensity;

}

if (shakeRotation)

{

transform.rotation = new Quaternion(OriginalRot.x + Random.Range(-currentShakeIntensity, currentShakeIntensity) * .2f,

OriginalRot.y + Random.Range(-currentShakeIntensity, currentShakeIntensity) * .2f,

OriginalRot.z + Random.Range(-currentShakeIntensity, currentShakeIntensity) * .2f,

OriginalRot.w + Random.Range(-currentShakeIntensity, currentShakeIntensity) * .2f);

}

currentShakeIntensity -= shakeDecay;

yield return null;

}

isShakeRunning = false;

}

}

}