# Enhanced camera shake with perlin noise

I watched the camera shake section of the Math for Game programmers video linked to in the resources and implemented it. It definitely feels a lot nicer.

``````    [Header("Perlin shake")]
[SerializeField] bool useEnhancedCameraShake = true;
[SerializeField] float shakeSpeedMultiplier = 1f;
[SerializeField] float traumaReductionRate = 0f;
private float trauma=0f;
private float perlinSeed;

Vector3 startPosition;
Vector3 startRotation;
int shakeIterationsRemaining = 0;
private void Awake() {
perlinSeed = Random.Range(0f,1f);
}
// Start is called before the first frame update
void Start()
{
startPosition = transform.position;
startRotation = transform.rotation.eulerAngles;

}

void Update()
{
if(useEnhancedCameraShake && trauma>float.Epsilon)
{
Execute();
}
}

public void AddTrauma(float amount)
{
trauma+=amount;
trauma = Mathf.Clamp01(trauma);
}

void Execute()
{
Vector3 deltaPosition = new Vector2
(
Mathf.PerlinNoise(perlinSeed,Time.time * shakeSpeedMultiplier),
Mathf.PerlinNoise(perlinSeed + 1,Time.time * shakeSpeedMultiplier)
);
deltaPosition *= shakeMagnitude * trauma * trauma;
float maxRotation = maxShakeAngle * trauma * trauma;
float deltaRotation = Mathf.PerlinNoise(perlinSeed + 2,Time.time * shakeSpeedMultiplier) * maxRotation;
deltaRotation -= maxRotation / 2f;
transform.position = startPosition + deltaPosition;
transform.rotation = Quaternion.AngleAxis(deltaRotation + startRotation.z, transform.forward);

trauma -= Time.deltaTime * traumaReductionRate;

}
``````