Add bazooka manager

Assets/Scripts/BazookaManager.cs

@@ -0,0 +1,88 @@
+using System.IO;
+using System.Text;
+using Newtonsoft.Json.Linq;
+using UnityEngine;
+
+public class BazookaManager : MonoBehaviour
+{
+    public static BazookaManager Instance;
+    private bool firstLoadDone = false;
+    public JObject saveFile = new()
+    {
+        ["version"] = "0"
+    };
+
+    void Awake()
+    {
+        if (Instance == null)
+        {
+            Instance = this;
+            DontDestroyOnLoad(gameObject);
+            if (!firstLoadDone)
+            {
+                firstLoadDone = true;
+                Load();
+            }
+        }
+        else
+        {
+            Destroy(gameObject);
+        }
+    }
+
+    void OnApplicationQuit()
+    {
+        Save();
+    }
+
+    void OnApplicationPause(bool pause)
+    {
+        if (pause)
+        {
+            Save();
+        }
+    }
+
+    public void Load()
+    {
+        string path = Path.Join(Application.persistentDataPath, "savefile.json");
+        if (!File.Exists(path))
+        {
+            File.Create(path).Dispose();
+        }
+        else
+        {
+            try
+            {
+                var tempSaveFile = JObject.Parse(File.ReadAllText(path));
+                if (tempSaveFile != null) saveFile = tempSaveFile;
+            }
+            catch
+            {
+                Debug.LogWarning("Failed to load save file");
+            }
+        }
+        if (saveFile["version"] == null || saveFile["version"].ToString() != "0")
+        {
+            saveFile["version"] = "0";
+        }
+    }
+
+    public void Save()
+    {
+        string path = Path.Join(Application.persistentDataPath, "savefile.json");
+        using var fileStream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.None);
+        var encoded = Encoding.UTF8.GetBytes(saveFile.ToString(Newtonsoft.Json.Formatting.Indented));
+        fileStream.Write(encoded, 0, encoded.Length);
+        fileStream.Flush(true);
+    }
+
+    public void ResetSave()
+    {
+        saveFile = new JObject
+        {
+            ["version"] = "0"
+        };
+        Save();
+    }
+}

Assets/Scripts/BazookaManager.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 0716218eb05c948ebb11f5d96d9131ac