★Munechika Yonemoto

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
public class Boll : MonoBehaviour
{
    public float moveSpeed;
    private Rigidbody rb;
    public AudioClip coinGet;
    public float jumpSpeed;
    private bool isjumping = false;
    private int coinCount = 0;
    private Vector3 pos;
    public GameObject[] coinIcons;
    public GameObject key;
    public AudioClip keysound;

    // ★追加（無限ジャンプ）
    private bool isMugen = false;

    void Start()
    {
        rb = GetComponent();
    }

    void Update()
    {
        pos = transform.position;
        if (pos.y < -10)
        {
            SceneManager.LoadScene("GameOver");
        }
        float moveH = Input.GetAxis("Horizontal");
        float moveV = Input.GetAxis("Vertical");
        Vector3 movement = new Vector3(moveH, 0, moveV);
        rb.AddForce(movement * moveSpeed);

        if (Input.GetButtonDown("Jump") && isjumping == false)
        {
            rb.velocity = Vector3.up * jumpSpeed;

            // ★追加（無限ジャンプ）
            if (isMugen == false)
            {
                isjumping = true;
            }
        }
    }

    private void OnTriggerEnter(Collider other)
    {
        if (other.CompareTag("Coin"))
        {
            Destroy(other.gameObject);
            AudioSource.PlayClipAtPoint(coinGet, Camera.main.transform.position);
            coinCount += 1;
            coinIcons[coinCount - 1].SetActive(false);
            if (coinCount == 1)
            {
                key.SetActive(true);
                AudioSource.PlayClipAtPoint(keysound, Camera.main.transform.position);
            }

            if (coinCount == 3)
            {
                SceneManager.LoadScene("GameClear");
            }
        }
        //キーというタグに触れたら無限ジャンプできる
        if (other.CompareTag("Key"))
        {
            // ★変更（無限ジャンプ）
            Destroy(other.gameObject);

            isMugen = true;

            // ボールの色を黒に変える
            this.gameObject.GetComponent<MeshRenderer>().material.color = Color.black;

            Invoke("ResetMugen", 5f); // 5秒間だけ無限ジャンプできる
        }
    }

    private void OnCollisionEnter(Collision collision)
    {
        if (collision.gameObject.CompareTag("Floor"))
        {
            isjumping = false;
        }
    }

    // ★追加（無限ジャンプ）
    void ResetMugen()
    {
        isMugen = false;

        // ボールの色を緑に戻す
        this.gameObject.GetComponent<MeshRenderer>().material.color = Color.green;
    }
}