Locomotive/Locomotive/AbstractMap.cs

@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace Locomotive
 {
-    internal abstract class AbstractMap
+    internal abstract class AbstractMap : IEquatable<AbstractMap>
     {
         private IDrawningObject _drawningObject = null;
         protected int[,] _map = null;
@@ -164,5 +164,30 @@ namespace Locomotive
         protected abstract void DrawRoadPart(Graphics g, int i, int j);
         protected abstract void DrawBarrierPart(Graphics g, int i, int j);
 
+        public bool Equals(AbstractMap? other)
+        {
+            if (other == null)
+            {
+                return false;
+            }
+            var otherMap = other as AbstractMap;
+            if (otherMap == null)
+            {
+                return false;
+            }
+            if (_width != otherMap._width) return false;
+            if (_height != otherMap._height) return false;
+            if (_size_x != otherMap._size_x) return false;
+            if (_size_y != otherMap._size_y) return false;
+
+            for (int i = 0; i < _map.GetLength(0); i++)
+            {
+                for (int j = 0; j < _map.GetLength(1); j++)
+                {
+                    if (_map[i,j] != otherMap._map[i,j]) return false;
+                }
+            }
+            return true;
+        }
     }
 }