using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class ScoreManager : MonoBehaviour {

	public static int score = 0;
	private Text scoreLabel;

	void Start () {
		scoreLabel = this.gameObject.GetComponent<Text>();
		scoreLabel.text = "Score " + score; 
	}

	public void AddScore(int amount){
		score += amount;
		scoreLabel.text = "Score " + score;
	}
		
	// ★追加（スコアデータをリセットするメソッド）
	public void ScoreReset(){
		score = 0;
	}
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;

public class PlayerHealth : MonoBehaviour {

	public GameObject effectPrefab;
	public AudioClip damageSound;
	public AudioClip destroySound;
	public int playerHP = 5;
	private Slider playerHPSlider;
	public GameObject[] playerIcons;
	public static int destroyCount = 0;

	// ★追加
	private ScoreManager scoreManager;

	void Start(){

		// ★追加（ScoreLabelオブジェクトに付いているScoreManagerスクリプトにアクセスする。）
		scoreManager = GameObject.Find("ScoreLabel").GetComponent<ScoreManager>();

		UpdatePlayerIcons ();

		playerHPSlider = GameObject.Find ("PlayerHPSlider").GetComponent<Slider> ();
		playerHPSlider.maxValue = playerHP;
		playerHPSlider.value = playerHP;
	}

	void OnTriggerEnter(Collider other){
		if (other.gameObject.CompareTag ("EnemyMissile")) {

			playerHP -= 1;
			playerHPSlider.value = playerHP;
			Destroy (other.gameObject);
			AudioSource.PlayClipAtPoint (damageSound, Camera.main.transform.position);

			if (playerHP == 0) {
				destroyCount += 1;
				UpdatePlayerIcons();
				GameObject effect = Instantiate (effectPrefab, transform.position, Quaternion.identity) as GameObject;
				Destroy (effect, 1.0f);
				AudioSource.PlayClipAtPoint (destroySound, Camera.main.transform.position);
				this.gameObject.SetActive(false);


				// ★書き方変更＆追加
				if (destroyCount < 5) {
					Invoke ("Retry", 1.0f);
				} else {
					
					destroyCount = 0;  // ★追加（ゲームオーバーになったら残機数をリセットする。）
					scoreManager.ScoreReset ();  // ★追加（ゲームオーバーになったらスコアをリセットする。）

					SceneManager.LoadScene("GameOver");
				}
			}
		}
	}

	void UpdatePlayerIcons(){
		for(int i = 0; i < playerIcons.Length; i++){
			if (destroyCount <= i)
				playerIcons [i].SetActive (true);
			else
				playerIcons [i].SetActive (false);
		}
	}

	void Retry(){
		this.gameObject.SetActive (true);
		playerHP = 5;
		playerHPSlider.value = playerHP;
	}

	public void AddHP(int amount){
		playerHP += amount;
		if (playerHP > 5)
			playerHP = 5;
		playerHPSlider.value = playerHP;
	}

	public void Player1Up(int amount){

		destroyCount -= amount;

		if (destroyCount < 0)
			destroyCount = 0;

		for(int i = 0; i < playerIcons.Length; i++){
			if (destroyCount <= i)
				playerIcons [i].SetActive (true);
			else
				playerIcons [i].SetActive (false);
		}
	}
}