【Unity演習の解答】PlayerPrefsを使ってデータの保存・取り出しを行う
演習問題の解答ページです。演習を行った後に確認をお願いします。
演習解答
問題1
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PlayerPrefsPractice : MonoBehaviour
{
public int SaveTest;
void Start()
{
}
void Update()
{
if (Input.GetKeyDown(KeyCode.Z))
{
if(PlayerPrefs.HasKey("save_test"))
{
Debug.Log(PlayerPrefs.GetInt("save_test", 0));
}
else
{
Debug.Log("save_testに値は保存されていません");
}
}
if (Input.GetKeyDown(KeyCode.X))
{
}
if (Input.GetKeyDown(KeyCode.C))
{
}
}
}
問題2
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PlayerPrefsPractice : MonoBehaviour
{
public int SaveTest;
void Start()
{
}
void Update()
{
if (Input.GetKeyDown(KeyCode.Z))
{
if(PlayerPrefs.HasKey("save_test"))
{
Debug.Log(PlayerPrefs.GetInt("save_test", -1));
}
else
{
Debug.Log("save_testに値は保存されていません");
}
}
if (Input.GetKeyDown(KeyCode.X))
{
SaveTest = PlayerPrefs.GetInt("save_test", -1);
SaveTest += 1;
PlayerPrefs.SetInt("save_test", SaveTest);
PlayerPrefs.Save();
}
if (Input.GetKeyDown(KeyCode.C))
{
}
}
}
問題3
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PlayerPrefsPractice : MonoBehaviour
{
public int SaveTest;
void Start()
{
}
void Update()
{
if (Input.GetKeyDown(KeyCode.Z))
{
if(PlayerPrefs.HasKey("save_test"))
{
Debug.Log(PlayerPrefs.GetInt("save_test", 0));
}
else
{
Debug.Log("save_testに値は保存されていません");
}
}
if (Input.GetKeyDown(KeyCode.X))
{
SaveTest = PlayerPrefs.GetInt("save_test", 0);
SaveTest += 1;
PlayerPrefs.SetInt("save_test", SaveTest);
PlayerPrefs.Save();
}
if (Input.GetKeyDown(KeyCode.C))
{
if (PlayerPrefs.HasKey("save_test"))
{
PlayerPrefs.DeleteKey("save_test");
}
}
}
}