Save and Load Using BinaryFormatter HELP!!!

Question

So I am trying to make a save and load system using BinaryFormatter/Custom Binary and I am trying to figure out how to save a float and a bool using it, so far I have made a class SaveManager which has all the save and load functions, and then I have script which access the static function in the SaveManger class. Here the code:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using System;
 using System.Runtime.Serialization.Formatters.Binary;
 using System.IO;
 
 public static class SaveManager {
     public static string path = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
 
     public static void SavePlayer(SavePos player)
     {
         BinaryFormatter bf = new BinaryFormatter();
         FileStream stream = new FileStream(path + "/PlayerPos.txt", FileMode.Create);
 
         PlayerData data = new PlayerData(player);
 
         bf.Serialize(stream, data);
         stream.Close();
     }
 
     public static float[] LoadPlayer()
     {
         
         if (File.Exists(path + "/PlayerPos.txt"))
         {
             BinaryFormatter bf = new BinaryFormatter();
             FileStream stream = new FileStream(path + "/PlayerPos.txt", FileMode.Open);
 
             PlayerData data = bf.Deserialize(stream) as PlayerData;
             stream.Close();
 
             return data.stats;
         }
         return null;
     }
 }
 
 [Serializable]
 public class PlayerData
 {
     public float[] stats;
 
     public PlayerData(SavePos player)
     {
         stats = new float[3];
         stats[0] = SavePos.posX;
         stats[1] = SavePos.posY;
         stats[2] = SavePos.posZ;
     }
 }

The Class I am accessing the SaveManager From:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using System;
 
 public class SavePos : MonoBehaviour {
     public static float posX;
     public static float posY;
     public static float posZ;
 
     public void save()
     {
         float xx = transform.position.x;
         float yy = transform.position.y;
         float zz = transform.position.z;
     }
 
     public void load()
     {
         float[] loadedStats = SaveManager.LoadPlayer();
 
         float x = loadedStats[0];
         float y = loadedStats[1];
         float z = loadedStats[2];
 
         transform.position = new Vector3(x,y,z);
     }
 }

Answer 1

I'm not sure why you have all the references set up the way that you do, it seems strange, but this should work fine, though I haven't tested it (but I will if I must):

 using System;
 using System.IO;
 using System.Runtime.Serialization.Formatters.Binary;
 using UnityEngine;
 
 public static class SaveManager
 {
     private static readonly string FILE_PATH = Path.Combine(Application.persistentDataPath, "example.txt");
 
     private static PlayerData m_playerData;
 
     public static void Save()
     {
         BinaryFormatter bf = new BinaryFormatter();
         SavePlayer(bf);
     }
 
     private static void SavePlayer (BinaryFormatter bf)
     {
         if (m_playerData != null)
         {
             using (FileStream stream = new FileStream(FILE_PATH, FileMode.Open, FileAccess.Read))
             {
                 bf.Serialize(stream, m_playerData);
             }
         }
     }
 
     public static void Load ()
     {
         BinaryFormatter bf = new BinaryFormatter();
 
         if (!LoadPlayer(bf))
         {
             m_playerData = new PlayerData();
         }
     }
 
     private static bool LoadPlayer (BinaryFormatter bf)
     {
         if (!File.Exists(FILE_PATH))
         {
             return false;
         }
 
         using (FileStream stream = new FileStream(FILE_PATH, FileMode.Open, FileAccess.Read))
         {
             m_playerData = bf.Deserialize(stream) as PlayerData;
         }
 
         return true;
     }
 
     [Serializable]
     public class PlayerData
     {
         [SerializeField]
         private Pos3D m_position;
     }
 
     [Serializable]
     public struct Pos3D
     {
         public static readonly Pos3D zero = new Pos3D(0.0f, 0.0f, 0.0f);
         public static readonly Pos3D one = new Pos3D(1.0f, 1.0f, 1.0f);
 
         [SerializeField]
         private float m_x;
         [SerializeField]
         private float m_y;
         [SerializeField]
         private float m_z;
 
         public float x { get { return m_x; } set { m_x = value; } }
         public float y { get { return m_y; } set { m_y = value; } }
         public float z { get { return m_z; } set { m_z = value; } }
 
         public Pos3D (float x, float y, float z)
         {
             m_x = x;
             m_y = y;
             m_z = z;
         }
     }
 }

Save and Load Using BinaryFormatter HELP!!!

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