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  1. using System;
  2. using System.Collections.Generic;
  3.  
  4. public class Test
  5. {
  6.     public static void Main()
  7.     {
  8.         Dictionary<Coord, string> dict = new Dictionary<Coord, string>();
  9.         dict[new Coord(4, 5)] = "Test";
  10.         Console.WriteLine(dict[new Coord(4, 5)]);
  11.         dict[new Coord(4, 5)] = "Test2";
  12.         Console.WriteLine(dict[new Coord(4, 5)]);
  13.     }
  14. }
  15.  
  16. public struct Coord : IEquatable<Coord>
  17. {
  18.     public int X { get; private set; }
  19.     public int Y { get; private set; }
  20.  
  21.     public Coord(int x,int y) : this(){ X = x;
  22.         Y = y;}
  23.  
  24.     //Overloaded operator functuions below
  25.     //So I can easily multiply Coords by other Coords and ints and also add Coords together
  26.     public static Coord operator *(Coord left, int right)
  27.     {
  28.         return new Coord(left.X * right, left.Y * right);
  29.     }
  30.  
  31.     public static Coord operator *(Coord left, Coord right)
  32.     {
  33.         return new Coord(left.X * right.X, left.Y * right.Y);
  34.     }
  35.  
  36.     public static Coord operator +(Coord left, Coord right)
  37.     {
  38.         return new Coord(left.X + right.X, left.Y + right.Y);
  39.     }
  40.  
  41.     public static Coord operator -(Coord left, Coord right)
  42.     {
  43.         return new Coord(left.X - right.X, left.Y - right.Y);
  44.     }
  45.  
  46.  
  47.     public override int GetHashCode()
  48.     {
  49.         int hash = 17;
  50.         hash = hash * 31 + X;
  51.         hash = hash * 31 + Y;
  52.         return hash;
  53.     }
  54.  
  55.     public override bool Equals(object other)
  56.     {
  57.         return other is Coord ? Equals((Coord)other) : false;
  58.     }
  59.  
  60.     public bool Equals(Coord other)
  61.     {
  62.         return X == other.X &&
  63.                Y == other.Y;
  64.     }
  65. }
Success #stdin #stdout 0.03s 34000KB
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Test
Test2
https://ideone.com/aR6PqL
language:
C# (gmcs 5.20.1)
created:
11 years ago
visibility:
public

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