モデルを左右に揺らすだけのスクリプト

Swing.cs

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

public class Swing : MonoBehaviour
{
    public float speed = 200;
    public float range = 0.1f; 
    void Update()
    {
        var x = range *  Mathf.Sin(Mathf.Deg2Rad * Time.time * speed);
        transform.position =  new Vector3(x, 0, 0);
    }
}