Rounding Decimals

Unity Engine
1

Hi everyone id like to round my decimals so that i can only see 2 decimals heres my code

using UnityEngine;
using System.Collections;
using System;

public class CurrencyConverter : MonoBehaviour {

private static CurrencyConverter instance;
public static CurrencyConverter Instance{
get{
return instance;
}
}

void Awake(){
CreateInstance ();
}

void CreateInstance(){
if (instance == null) {
instance = this;

}
}

public string GetCurrencyIntoString(float valueToConvert, bool currencyPerSec, bool currencyPerClick){
string converted;
if(valueToConvert >= 1000) {
converted = (valueToConvert / 1000f).ToString (“F1”) + " K";
}else if(valueToConvert >= 1000000){
converted = (valueToConvert / 1000000f).ToString (“F1”) + " Mil";
} else {
converted = “” + valueToConvert;
}
if (currencyPerSec == true) {
converted = converted + " dps";
}
if (currencyPerClick == true) {
converted = " dps";
}
return converted;
}
}

2

NUMBER.ToString(“C2”) should be what you need, C for currency, 2 for the number of decimal places.

If you need to format the currency symbols to a specific regional currency or make one up, you can use the NumberFormatInfo structure from the CultureInfo structure:

3

Thanks but the currency has nothing to do with real-life currency, its basicly a code for my idle game that changes 1000 to 1K and 1000000 to 1 Mil.

Could you please write a full functioning code for it?
Beceause i didnt understand your code

4

Use some code tags so your code is more readable:

5

Here’s a comprenhensive answer from http://stackoverflow.com/questions/2134161/format-number-like-stack-overflow-rounded-to-thousands-with-k-suffix that will likely cover all of your cases.

Source:

public static class SIPrefix
{
    private static List<SIPrefixInfo> _SIPrefixInfoList = new
        List<SIPrefixInfo>();

    static SIPrefix()
    {
        _SIPrefixInfoList = new List<SIPrefixInfo>();
        LoadSIPrefix();
    }

    public static List<SIPrefixInfo> SIPrefixInfoList
    {
        get
        {
            SIPrefixInfo[] siPrefixInfoList = new SIPrefixInfo[6];
            _SIPrefixInfoList.CopyTo(siPrefixInfoList);
            return siPrefixInfoList.ToList();
        }
    }

    private static void LoadSIPrefix()
    {
        _SIPrefixInfoList.AddRange(new SIPrefixInfo[]{
            new SIPrefixInfo() {Symbol = "Y", Prefix = "yotta", Example = 1000000000000000000000000.00M, ZeroLength = 24, ShortScaleName = "Septillion", LongScaleName = "Quadrillion"},
            new SIPrefixInfo() {Symbol = "Z", Prefix = "zetta", Example = 1000000000000000000000M, ZeroLength = 21, ShortScaleName = "Sextillion", LongScaleName = "Trilliard"},
            new SIPrefixInfo() {Symbol = "E", Prefix = "exa", Example = 1000000000000000000M, ZeroLength = 18, ShortScaleName = "Quintillion", LongScaleName = "Trillion"},
            new SIPrefixInfo() {Symbol = "P", Prefix = "peta", Example = 1000000000000000M, ZeroLength = 15, ShortScaleName = "Quadrillion", LongScaleName = "Billiard"},
            new SIPrefixInfo() {Symbol = "T", Prefix = "tera", Example = 1000000000000M, ZeroLength = 12, ShortScaleName = "Trillion", LongScaleName = "Billion"},
            new SIPrefixInfo() {Symbol = "G", Prefix = "giga", Example = 1000000000M, ZeroLength = 9, ShortScaleName = "Billion", LongScaleName = "Milliard"},
            new SIPrefixInfo() {Symbol = "M", Prefix = "mega", Example = 1000000M, ZeroLength = 6, ShortScaleName = "Million", LongScaleName = "Million"},
            new SIPrefixInfo() {Symbol = "K", Prefix = "kilo", Example = 1000M, ZeroLength = 3, ShortScaleName = "Thousand", LongScaleName = "Thousand"},
            new SIPrefixInfo() {Symbol = "h", Prefix = "hecto", Example = 100M, ZeroLength = 2, ShortScaleName = "Hundred", LongScaleName = "Hundred"},
            new SIPrefixInfo() {Symbol = "da", Prefix = "deca", Example = 10M, ZeroLength = 1, ShortScaleName = "Ten", LongScaleName = "Ten"},
            new SIPrefixInfo() {Symbol = "", Prefix = "", Example = 1M, ZeroLength = 0, ShortScaleName = "One", LongScaleName = "One"},
        });
    }

    public static SIPrefixInfo GetInfo(long amount, int decimals)
    {
        return GetInfo(Convert.ToDecimal(amount), decimals);
    }

    public static SIPrefixInfo GetInfo(decimal amount, int decimals)
    {
        SIPrefixInfo siPrefixInfo = null;
        decimal amountToTest = Math.Abs(amount);

        var amountLength = amountToTest.ToString("0").Length;
        if(amountLength < 3)
        {
            siPrefixInfo = _SIPrefixInfoList.Find(i => i.ZeroLength == amountLength).Clone() as SIPrefixInfo;
            siPrefixInfo.AmountWithPrefix =  Math.Round(amount, decimals).ToString();

            return siPrefixInfo;
        }

        siPrefixInfo = _SIPrefixInfoList.Find(i => amountToTest > i.Example).Clone() as SIPrefixInfo;

        siPrefixInfo.AmountWithPrefix = Math.Round(
            amountToTest / Convert.ToDecimal(siPrefixInfo.Example), decimals).ToString()
                                        + siPrefixInfo.Symbol;

        return siPrefixInfo;
    }
}

public class SIPrefixInfo : ICloneable
{
    public string Symbol { get; set; }
    public decimal Example { get; set; }
    public string Prefix { get; set; }
    public int ZeroLength { get; set; }
    public string ShortScaleName { get; set; }
    public string LongScaleName { get; set; }
    public string AmountWithPrefix { get; set; }

    public object Clone()
    {
        return new SIPrefixInfo()
                            {
                                Example = this.Example,
                                LongScaleName = this.LongScaleName,
                                ShortScaleName = this.ShortScaleName,
                                Symbol = this.Symbol,
                                Prefix = this.Prefix,
                                ZeroLength = this.ZeroLength
                            };

    }
}

Usage:

var amountInfo = SIPrefix.GetInfo(10250, 2);
var amountInfo2 = SIPrefix.GetInfo(2500000, 0);

amountInfo.AmountWithPrefix // 10.25K
amountInfo2.AmountWithPrefix // 2M

And like @lordofduct said, please use the code tags when posting code, it makes it hard to read and understand exactly what you asked for.