88 lines
2.2 KiB
C#
88 lines
2.2 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see COPYING.
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*/
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#endregion
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using System.Collections.Generic;
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using System.Drawing;
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namespace OpenRA.Primitives
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{
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public struct Pair<T, U>
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{
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public T First;
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public U Second;
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public Pair(T first, U second)
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{
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First = first;
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Second = second;
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}
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internal static IEqualityComparer<T> tc = EqualityComparer<T>.Default;
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internal static IEqualityComparer<U> uc = EqualityComparer<U>.Default;
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public static bool operator ==(Pair<T, U> a, Pair<T, U> b)
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{
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return tc.Equals(a.First, b.First) && uc.Equals(a.Second, b.Second);
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}
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public static bool operator !=(Pair<T, U> a, Pair<T, U> b)
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{
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return !(a == b);
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}
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public override bool Equals(object obj)
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{
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var o = obj as Pair<T, U>?;
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return o != null && o == this;
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}
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public override int GetHashCode()
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{
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return First.GetHashCode() ^ Second.GetHashCode();
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}
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public Pair<T, U> WithFirst(T t) { return new Pair<T, U>(t, Second); }
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public Pair<T, U> WithSecond(U u) { return new Pair<T, U>(First, u); }
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public static T AsFirst(Pair<T, U> p) { return p.First; }
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public static U AsSecond(Pair<T, U> p) { return p.Second; }
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public override string ToString()
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{
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return "({0},{1})".F(First, Second);
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}
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class PairEqualityComparer : IEqualityComparer<Pair<T, U>>
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{
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public bool Equals(Pair<T, U> x, Pair<T, U> y) { return x == y; }
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public int GetHashCode(Pair<T, U> obj) { return obj.GetHashCode(); }
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}
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public static IEqualityComparer<Pair<T, U>> EqualityComparer { get { return new PairEqualityComparer(); } }
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}
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public static class Pair
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{
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public static Pair<T, U> New<T, U>(T t, U u) { return new Pair<T, U>(t, u); }
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static Pair()
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{
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Pair<char,Color>.uc = new ColorEqualityComparer();
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}
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// avoid the default crappy one
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class ColorEqualityComparer : IEqualityComparer<Color>
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{
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public bool Equals(Color x, Color y) { return x.ToArgb() == y.ToArgb(); }
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public int GetHashCode(Color obj) { return obj.GetHashCode(); }
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}
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}
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}
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