Scriptum/Assets/Scripts/PlayerPosition.cs

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

public class PlayerPosition : MonoBehaviour
{
    public float x, y, z;

    public void SavePosition()
    {
        x = transform.position.x;
        y = transform.position.y;
        z = transform.position.z;

        PlayerPrefs.SetFloat("player.position.x", x);
        PlayerPrefs.SetFloat("player.position.y", y);
        PlayerPrefs.SetFloat("player.position.z", z);
    }

    public static Vector3 LoadPosition()
    {
        var x = PlayerPrefs.GetFloat("player.position.x");
        var y = PlayerPrefs.GetFloat("player.position.y");
        var z = PlayerPrefs.GetFloat("player.position.z");

        return new Vector3(x, y, z);
    }

    /// <summary>
    /// ONE BIG SHIT
    /// 
    /// First MainCharacterManager create instance with previously remembered gateway coords :)
    /// After that we crate new player instance on scene
    /// And finally: This script is deffaultly assigned to player soo..
    ///     its overwrites Player coords depending on condition in function below
    /// </summary>
    void Start()
    {
        if (OnMapAppearanceMethod.IsJustLaunched())
        {
            transform.position = LoadPosition();

            // I really dont remember if we use this vars anywhere so I just assign new value to make sure I dont break anything :D           x = transform.position.x;
            x = transform.position.x;
            y = transform.position.y;
            z = transform.position.z;
        }
    }
}