RoboticArm.cs

using UnityEngine;

//! This class handles automation of the retriever's robotic arm.
public class RoboticArm : MonoBehaviour
{
    public GameObject retriever;
    public GameObject item;
    public Transform rotationTransform;
    private StateManager stateManager;
    private Vector3 rotationPoint;
    bool started;
    bool soundPlayed;
    float timer;

    //! Start is called before the first frame update.
    void Start()
    {
        rotationPoint = rotationTransform.position;
        stateManager = FindObjectOfType<StateManager>();
    }

    //! Update is called once per frame.
    void Update()
    {
        if (!stateManager.Busy())
        {
            if (retriever.GetComponent<Retriever>().inputObject != null && retriever.GetComponent<Retriever>().outputObject != null)
            {
                started = true;
            }
            else
            {
                started = false;
                item.GetComponent<Renderer>().enabled = false;
            }
            if (retriever.GetComponent<Light>().enabled == true && started == true)
            {
                timer += 1 * Time.deltaTime;
                if (timer < 1)
                {
                    if (soundPlayed == false)
                    {
                        soundPlayed = true;
                    }
                    item.GetComponent<Renderer>().enabled = true;
                    transform.RotateAround(rotationPoint, Vector3.up, 150 * Time.deltaTime);
                }
                else if (timer >= 1 && timer < 3)
                {
                    if (soundPlayed == true)
                    {
                        retriever.GetComponent<AudioSource>().Play();
                        soundPlayed = false;
                    }
                    item.GetComponent<Renderer>().enabled = false;
                    transform.RotateAround(rotationPoint, -Vector3.up, 150 * Time.deltaTime);
                }
                else if (timer >= 3 && timer < 4)
                {
                    if (soundPlayed == false)
                    {
                        retriever.GetComponent<AudioSource>().Play();
                        soundPlayed = true;
                    }
                    item.GetComponent<Renderer>().enabled = true;
                    transform.RotateAround(rotationPoint, Vector3.up, 150 * Time.deltaTime);
                }
                else if (timer >= 4 && timer < 5)
                {
                    if (soundPlayed == true)
                    {
                        retriever.GetComponent<AudioSource>().Play();
                        soundPlayed = false;
                    }
                    item.GetComponent<Renderer>().enabled = false;
                    transform.RotateAround(rotationPoint, -Vector3.up, 150 * Time.deltaTime);
                }
                else if (timer >= 5 && timer < 6)
                {
                    if (soundPlayed == false)
                    {
                        retriever.GetComponent<AudioSource>().Play();
                        soundPlayed = true;
                    }
                    item.GetComponent<Renderer>().enabled = true;
                    transform.RotateAround(rotationPoint, Vector3.up, 150 * Time.deltaTime);
                }
                else if (timer >= 6)
                {
                    timer = 0;
                    soundPlayed = false;
                }
            }
            else
            {
                item.GetComponent<Renderer>().enabled = false;
            }
        }
    }
}