GGJ_2019/Assets/SpiritBall/SpiritJitter.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class SpiritJitter : MonoBehaviour {

    Vector3 Target = new Vector3(0.0f, 0.0f, 0.0f);
    public float distance = 1.0f;
    public float time = 0.5f;

    private void Start()
    {
        StartCoroutine("Jitter");
    }

    IEnumerator Jitter()
    {
        bool jittering = true;
        while (jittering)
        {
            transform.localPosition = Target;

            float randX = Random.Range(-1 * distance, distance);
            float randY = Random.Range(-1 * distance, distance);
            float randZ = Random.Range(-1 * distance, distance);

            Target = new Vector3(randX, randY, randZ);
            yield return new WaitForSeconds(time);
        }
    }
}