Shake Object by given Time, Range & Magnitude Curve.

ShakeEffect.cs

using UnityEngine;

public class ShakeEffect : MonoBehaviour {
	private float m_ShakeTime = 0.0f;
	private float m_StartShakeTime = 0.0f;
	
	public Vector3 ShakeRange = new Vector3 (0.2f, 0.05f, 0.1f);
	
	[SerializeField]
	private AnimationCurve m_ShakeCurve = new AnimationCurve(new Keyframe(0.0f, 1.0f), new Keyframe(1.0f, 1.0f));
	
	private Vector3 m_OriginalPosition = Vector3.zero;
	
	void Awake() {
		m_OrignalPosition = this.transform.position;
		this.enabled = false;
	}
	
	void Update(){
		if (this.enabled == false)
			return;
		if (Time.timeSinceLevelLoad - m_StartShakeTime > m_ShakeTime) {
			this.enabled = false;
			this.transform.position = m_OriginalPosition;
		} else {
			float t = m_ShakeCurve.Evaluate((Time.timeSinceLevelLoad - m_StartShakeTime) / m_ShakeTime);
			Vector3 randMagnitude = Vector3.Scale(this.ShakeRange, Random.onUnitSphere) * t;
			this.transform.position = m_OriginalPosition + randMagnitude;
		}
	}
	
	public void Shake(float time) {
		this.enabled = true;
		m_ShakeTime = time;
		m_StartShakeTime = Time.timeSinceLevelLoad;
	}
}