Add project files.

MartianRobotsSolver/WorldInfo.cs

@@ -0,0 +1,30 @@
+using Ardalis.GuardClauses;
+
+namespace MartianRobotsSolver
+{
+    public class WorldInfo
+    {
+        private List<(int X,int Y)> scents = new List<(int X, int Y)>();
+        public WorldInfo(int sizeX, int sizeY)
+        {
+            Guard.Against.OutOfRange(sizeX, nameof(sizeX), 0, 50);
+            Guard.Against.OutOfRange(sizeY, nameof(sizeY), 0, 50);
+            this.SizeX=sizeX;
+            this.SizeY=sizeY;
+        }
+
+        public int SizeX { get; internal set; }
+        public int SizeY { get; internal set; }
+
+        internal void AddScent(int posX, int posY)
+        {
+            if(!HasScent(posX, posY))
+                scents.Add((posX, posY));
+        }
+
+        internal bool HasScent(int posX, int posY)
+        {
+            return scents.Contains((posX, posY));
+        }
+    }
+}