processingのconstrain関数をc#でも使えるように。ジェネリック＆拡張メソッドにしている。

constrain.cs

public static class MiscUtils
{
  /// <summary>
  /// Constrains a value to not exceed a maximum and minimum value
  /// </summary>
  /// <typeparam name="Type">IComparable-implementing type</typeparam>
  /// <param name="value">the value to constrain</param>
  /// <param name="min">minimum limit</param>
  /// <param name="max">maximum limit</param>
  /// <returns>constrained value</returns>
  public static Type Constrain<Type>(this Type value, Type min, Type max)  where Type : IComparable {
    value = value.CompareTo(max) > 0 ? max : value;
    value = value.CompareTo(min) < 0 ? min : value;
    return value;
  }
}