Unity 6.3 LTS｜3D的当てゲームを作ろう②

using UnityEngine;
using UnityEngine.InputSystem;
using TMPro;

public class ShootCheck : MonoBehaviour
{
    Camera cameraComponent;

    public TMP_Text scoreText;
    public TMP_Text timerText;
    public float timeLimit = 30f;

    int score = 0;
    int remainingTargets;
    float timeRemaining;
    bool gameEnded;

    void Start()
    {
        cameraComponent = GetComponent<Camera>();
        scoreText.text = "SCORE: " + score;

        remainingTargets =
            GameObject.FindGameObjectsWithTag("Target").Length;

        timeRemaining = timeLimit;
        timerText.text =
            "TIME: " + Mathf.CeilToInt(timeRemaining);
    }

    void Update()
    {
        if (gameEnded)
        {
            return;
        }

        timeRemaining -= Time.deltaTime;

        if (timeRemaining <= 0f)
        {
            timeRemaining = 0f;
            timerText.text = "TIME: 0";
            scoreText.text = "TIME UP!\nSCORE: " + score;
            gameEnded = true;
            return;
        }

        timerText.text =
            "TIME: " + Mathf.CeilToInt(timeRemaining);

        if (Mouse.current == null ||
            !Mouse.current.leftButton.wasPressedThisFrame)
        {
            return;
        }

        Ray ray = cameraComponent.ViewportPointToRay(
            new Vector3(0.5f, 0.5f, 0f));

        if (!Physics.Raycast(ray, out RaycastHit hit))
        {
            return;
        }

        Debug.Log(hit.collider.gameObject.name);

        if (!hit.collider.CompareTag("Target"))
        {
            return;
        }

        MovingTarget movingTarget =
            hit.collider.GetComponent<MovingTarget>();

        if (movingTarget != null)
        {
            score += movingTarget.scoreValue;
        }
        else
        {
            score++;
        }

        remainingTargets--;

        if (remainingTargets == 0)
        {
            gameEnded = true;
            scoreText.text = "CLEAR!\nSCORE: " + score;
        }
        else
        {
            scoreText.text = "SCORE: " + score;
        }

        Destroy(hit.collider.gameObject);
    }
}

using UnityEngine;
using UnityEngine.InputSystem;

public class MouseLook : MonoBehaviour
{
    public float sensitivity = 0.1f;

    float yaw;
    float pitch;
    float startYaw;
    float startPitch;

    void Start()
    {
        yaw = transform.eulerAngles.y;
        pitch = transform.eulerAngles.x;
        startYaw = yaw;
        startPitch = pitch;
    }

    void Update()
    {
        if (Mouse.current == null) return;

        Vector2 move = Mouse.current.delta.ReadValue();
        yaw += move.x * sensitivity;
        pitch = Mathf.Clamp(
            pitch - move.y * sensitivity, -80f, 80f);

        transform.rotation = Quaternion.Euler(pitch, yaw, 0f);

        if (Mouse.current.rightButton.wasPressedThisFrame ||
            Mouse.current.middleButton.wasPressedThisFrame)
        {
            yaw = startYaw;
            pitch = startPitch;
            transform.rotation = Quaternion.Euler(pitch, yaw, 0f);
            return;
        }
    }
}

using UnityEngine;

public class MovingTarget : MonoBehaviour
{
    public float moveDistance = 2f;
    public float moveSpeed = 2f;
    public int scoreValue = 3;

    Vector3 startPosition;

    void Start()
    {
        startPosition = transform.position;
    }

    void Update()
    {
        float offset =
            Mathf.Sin(Time.time * moveSpeed) * moveDistance;

        transform.position =
            startPosition + new Vector3(0f, 0f, offset);
    }
}