Как создать игру на unity: руководство для школьников

using UnityEngine;

public class PlayerController : MonoBehaviour
{
    public float speed = 10f;
    private Rigidbody rb;
    private int score = 0;

    void Start()
    {
        rb = GetComponent<Rigidbody>();
    }

    void Update()
    {
        float moveHorizontal = Input.GetAxis("Horizontal");
        float moveVertical = Input.GetAxis("Vertical");

        Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);
        rb.AddForce(movement * speed);
    }

    void OnTriggerEnter(Collider other)
    {
        if (other.gameObject.CompareTag("Pickup"))
        {
            other.gameObject.SetActive(false);
            score++;
            Debug.Log("Счет: " + score);
        }
    }
}

using TMPro;
public TMP_Text scoreText;

void Start()
{
    rb = GetComponent<Rigidbody>();
    scoreText.text = "Счет: 0";
}

void OnTriggerEnter(Collider other)
{
    if (other.gameObject.CompareTag("Pickup"))
    {
        other.gameObject.SetActive(false);
        score++;
        scoreText.text = "Счет: " + score;
    }
}

using UnityEngine;

public class RotateObject : MonoBehaviour
{
    public float rotationSpeed = 50f;

    void Update()
    {
        transform.Rotate(0, rotationSpeed * Time.deltaTime, 0);
    }
}