How to save a very large number Unity-CodePudding

I'm making an andoid game (clicker) on Unity. 1 500 321 stored as Millions = 1, Thousands = 500, Hundreds = 3, dozens = 2, units = 1. I have a main script that stores a number (code 1) and a script that reduces this number (code 2) (those were 100,000 became 1K). How to store a number that can reach 100 zeros so as not to heavily rewrite code 2 and it would be nice to be able to store the number (money) in PlayerPrefs ? Thanks in advance!

code 1:

public Text moneyText;

public int money;
public int moneyPerClick = 1000000;

void Start()
{
    money = PlayerPrefs.GetInt("money");
    moneyPerClick = PlayerPrefs.GetInt("moneyPerClick");
}

void Update()
{
    moneyText.text = FormatNumbers.formatNumber(money);
}


public void Clik()
{
    money  = moneyPerClick;
    PlayerPrefs.SetInt("money", money);
}

code 2:

public static class FormatNumbers
{

public static string[] format_name = new[]
{
    "", "K", "M", "t", "q", "Q", "s", "S", "o", "n", "d", "U", "D", "T", 
 "Qt", "Qd", "Sd", "St", "O", "N", "v", "c"
};

public static string formatNumber(float num)
{
    if (num == 0)
        return "0";

    int i = 0;
    while(i 1 < format_name.Length && num >= 1000f)
    {
        num /= 1000f;
        i  ;
    }
    return num.ToString("#.##")   format_name[i];
}

CodePudding user response：

Use BigInteger, it supports arbitrary large numbers. It has methods to convert it to a byte-array, and a constructor to convert back again.

An alternative could be to use a double, this has sufficient range, but cannot represent all integers within its range exactly. But this should mostly be a problem if you are adding a very small number to a very large number, so may or may not be appropriate for your use case.

In general you want to use a single representation of your values, and convert it to human readable format as late as possible.

CodePudding user response：

You need to use System.Numerics.BigInteger add it to your project you need to use special functions for the operations like BigInteger.Add(HERE A BIG INTEGER, HERE A BIG INTEGER) for storing the data you need to convert BigInteger to string with .ToString() and then store as string For reading it again BigInteger.Parse(HERE STRING)