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88 lines
3.1 KiB
88 lines
3.1 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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namespace Ameliorated.ConsoleUtils
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{
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public static class Extensions
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{
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public static bool IsEven(this int number)
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{
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return number % 2 == 0;
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}
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/// <summary>
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/// Checks if number is divisble by a divisor.
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/// <param name="divisor">Divisor.</param>
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/// <param name="returnFalseOnZeroOrNegative">Indicates whether to return false on numbers that are zero or below. Default is true.</param>
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/// </summary>
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public static bool IsDivisibleBy(this int number, int divisor, bool returnFalseOnZeroOrNegative = true)
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{
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if (returnFalseOnZeroOrNegative && number <= 0) return false;
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return number % divisor == 0;
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}
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public static int RoundToEven(this double number)
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{
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var rounded = (int)Math.Round(number);
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if (!rounded.IsEven()) return rounded - 1;
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return rounded;
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}
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public static int RoundToEven(this int number)
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{
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if (!number.IsEven()) return number - 1;
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return number;
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}
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public static int RoundToOdd(this double number)
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{
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if (!((int)Math.Ceiling(number)).IsEven()) return (int)Math.Ceiling(number);
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if (!((int)Math.Floor(number)).IsEven()) return (int)Math.Floor(number);
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return (int)Math.Truncate(number) - 1;
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}
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public static int RoundToOdd(this int number)
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{
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if (!number.IsEven()) return number - 1;
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return number;
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}
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public static string[] SplitByLine(this string text, StringSplitOptions options = StringSplitOptions.None)
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{
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return text.Split(new[]
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{ "\r\n", "\n" }, options);
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}
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public static string LastLine(this string text, StringSplitOptions options = StringSplitOptions.None)
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{
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return text.SplitByLine().Last();
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}
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public static void ReplaceItem(this List<Menu.MenuItem> list, Menu.MenuItem oldItem, Menu.MenuItem newItem)
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{
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var index = list.IndexOf(oldItem);
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if (index == -1) throw new ArgumentException("Could not find item index.");
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list.RemoveAt(index);
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list.Insert(index, newItem);
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}
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public static Menu.MenuItem Clone(this Menu.MenuItem item)
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{
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return new Menu.MenuItem(item.PrimaryText, item.ReturnValue)
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{
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AddBetweenSpace = item.AddBetweenSpace,
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IsEnabled = item.IsEnabled,
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IsNextButton = item.IsNextButton,
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IsPreviousButton = item.IsPreviousButton,
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IsStatic = item.IsStatic,
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PrimaryTextBackground = item.PrimaryTextBackground,
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PrimaryTextForeground = item.PrimaryTextForeground,
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SecondaryText = item.SecondaryText,
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SecondaryTextBackground = item.SecondaryTextBackground,
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SecondaryTextForeground = item.SecondaryTextForeground,
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StretchSelection = item.StretchSelection,
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};
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}
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}
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}
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