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UnitHandlingExtensions.cs
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UnitHandlingExtensions.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using FrEee.Extensions;
using FrEee.Extensions;
using FrEee.Extensions;
namespace FrEee.Extensions;
public static class UnitHandlingExtensions
{
private static IDictionary<int, string> RomanNumeralCache = new Dictionary<int, string>();
private static Tuple<int, string>[] RomanNumeralParts = new Tuple<int, string>[]
{
Tuple.Create(1000, "M"),
Tuple.Create(900, "CM"),
Tuple.Create(500, "D"),
Tuple.Create(400, "CD"),
Tuple.Create(100, "C"),
Tuple.Create(90, "XC"),
Tuple.Create(50, "L"),
Tuple.Create(40, "XL"),
Tuple.Create(10, "X"),
Tuple.Create(9, "IX"),
Tuple.Create(5, "V"),
Tuple.Create(4, "IV"),
Tuple.Create(1, "I"),
};
/// <summary>
/// Displays a number in kT, MT, etc.
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static string Kilotons(this long? value, string undefinedValue = "Undefined")
{
if (value == null)
return undefinedValue;
return value.Value.Kilotons();
}
/// <summary>
/// Displays a number in kT, MT, etc.
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static string Kilotons(this long value)
{
if (value < 10000)
return value + "kT";
return (value * 1000).ToUnitString() + "T";
}
/// <summary>
/// Displays a number in kT, MT, etc.
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static string Kilotons(this int? value, string nullText = "Undefined")
{
if (value == null)
return nullText;
return ((long?)value).Kilotons();
}
/// <summary>
/// Displays a number in kT, MT, etc.
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static string Kilotons(this int value)
{
return ((long)value).Kilotons();
}
/// <summary>
/// Displays a number in kT, MT, etc.
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static string Kilotons(this double? value, string undefinedValue = "Undefined")
{
if (value == null)
return undefinedValue;
return value.Value.Kilotons();
}
/// <summary>
/// Displays a number in kT, MT, etc.
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static string Kilotons(this double value)
{
return (value * 1000).ToUnitString() + "T";
}
/// <summary>
/// Gets a roman numeral.
/// </summary>
/// <param name="i"></param>
/// <returns></returns>
public static string ToRomanNumeral(this int i)
{
// do we already know this?
if (!RomanNumeralCache.ContainsKey(i))
{
// get silly negative numbers and zeroes out of the way
if (i < 0)
RomanNumeralCache.Add(i, "-" + ToRomanNumeral(-i));
else if (i == 0)
RomanNumeralCache.Add(i, "");
else
{
// scan the roman numeral parts list recursively
foreach (var part in RomanNumeralParts.OrderByDescending(part => part.Item1))
{
if (i >= part.Item1)
{
RomanNumeralCache.Add(i, part.Item2 + (i - part.Item1).ToRomanNumeral());
break;
}
}
}
}
return RomanNumeralCache[i];
}
/// <summary>
/// Converts a turn number to a stardate.
/// </summary>
/// <param name="turnNumber"></param>
/// <returns></returns>
public static string ToStardate(this int turnNumber)
{
// TODO - moddable starting stardate?
return ((turnNumber + 23999) / 10.0).ToString("0.0");
}
/// <summary>
/// Adds SI prefixes to a value and rounds it off.
/// e.g. 25000 becomes 25.00k
/// </summary>
/// <param name="value"></param>
public static string ToUnitString(this long? value, bool bForBillions = false, int sigfigs = 4, string undefinedValue = "Undefined")
{
if (value == null)
return undefinedValue;
return value.Value.ToUnitString(bForBillions, sigfigs);
}
/// <summary>
/// Adds SI prefixes to a value and rounds it off.
/// e.g. 25000 becomes 25.00k
/// </summary>
/// <param name="value"></param>
public static string ToUnitString(this long value, bool bForBillions = false, int sigfigs = 4)
{
if (Math.Abs(value) >= 1e12 * Math.Pow(10, sigfigs - 3))
{
var log = (int)Math.Floor(Math.Log10(Math.Abs(value) / 1e12));
var decimals = sigfigs - 1 - log;
return (value / 1e12).ToString("f" + decimals) + "T";
}
if (Math.Abs(value) >= 1e9 * Math.Pow(10, sigfigs - 3))
{
var log = (int)Math.Floor(Math.Log10(Math.Abs(value) / 1e9));
var decimals = sigfigs - 1 - log;
return (value / 1e9).ToString("f" + decimals) + (bForBillions ? "B" : "G");
}
if (Math.Abs(value) >= 1e6 * Math.Pow(10, sigfigs - 3))
{
var log = (int)Math.Floor(Math.Log10(Math.Abs(value) / 1e6));
var decimals = sigfigs - 1 - log;
return (value / 1e6).ToString("f" + decimals) + "M";
}
if (Math.Abs(value) >= 1e3 * Math.Pow(10, sigfigs - 3))
{
var log = (int)Math.Floor(Math.Log10(Math.Abs(value) / 1e3));
var decimals = sigfigs - 1 - log;
return (value / 1e3).ToString("f" + decimals) + "k";
}
return value.ToString();
}
/// <summary>
/// Adds SI prefixes to a value and rounds it off.
/// e.g. 25000 becomes 25.00k
/// </summary>
/// <param name="value"></param>
public static string ToUnitString(this int? value, bool bForBillions = false, int sigfigs = 4)
{
return ((long?)value).ToUnitString(bForBillions, sigfigs);
}
/// <summary>
/// Adds SI prefixes to a value and rounds it off.
/// e.g. 25000 becomes 25.00k
/// </summary>
/// <param name="value"></param>
public static string ToUnitString(this int value, bool bForBillions = false, int sigfigs = 4)
{
return ((long)value).ToUnitString(bForBillions, sigfigs);
}
/// <summary>
/// Adds SI prefixes to a value and rounds it off.
/// e.g. 25000 becomes 25.00k
/// </summary>
/// <param name="value"></param>
public static string ToUnitString(this double value, bool bForBillions = false, int sigfigs = 4)
{
if (Math.Abs(value) >= 1e12 * Math.Pow(10, sigfigs - 3))
{
var log = (int)Math.Floor(Math.Log10(Math.Abs(value) / 1e12));
var decimals = sigfigs - 1 - log;
return (value / 1e12).ToString("f" + decimals) + "T";
}
if (Math.Abs(value) >= 1e9 * Math.Pow(10, sigfigs - 3))
{
var log = (int)Math.Floor(Math.Log10(Math.Abs(value) / 1e9));
var decimals = sigfigs - 1 - log;
return (value / 1e9).ToString("f" + decimals) + (bForBillions ? "B" : "G");
}
if (Math.Abs(value) >= 1e6 * Math.Pow(10, sigfigs - 3))
{
var log = (int)Math.Floor(Math.Log10(Math.Abs(value) / 1e6));
var decimals = sigfigs - 1 - log;
return (value / 1e6).ToString("f" + decimals) + "M";
}
if (Math.Abs(value) >= 1e3 * Math.Pow(10, sigfigs - 3))
{
var log = (int)Math.Floor(Math.Log10(Math.Abs(value) / 1e3));
var decimals = sigfigs - 1 - log;
return (value / 1e3).ToString("f" + decimals) + "k";
}
return value.ToString();
}
/// <summary>
/// Adds SI prefixes to a value and rounds it off.
/// e.g. 25000 becomes 25.00k
/// </summary>
/// <param name="value"></param>
public static string ToUnitString(this double? value, bool bForBillions = false, int sigfigs = 4, string undefinedValue = "Undefined")
{
if (value == null)
return undefinedValue;
return value.Value.ToUnitString(bForBillions, sigfigs);
}
}