using UnityEngine;

public class RotateAngle2D : MonoBehaviour
{
    public float angle1 = -0.7f;
    public float angle2 = 0.7f;
    public float speed = 0.7f;
    float angle;
    bool right = true;

    void Start()
    {
        angle = transform.rotation.z;
    }

    void FixedUpdate()
    {
        if (right == true)
        {
            transform.Rotate(new Vector3(0f, 0f, 1f) * speed);
        }
        else
        {
            transform.Rotate(new Vector3(0f, 0f, -1f) * speed);
        }

        if (transform.rotation.z >= angle2 || transform.rotation.z <= angle1)
        {
            right = !right;
        }
    }
}