added Player GameObject, updated GrassTile.Clicked()

Assets/Scripts/Tiles/GrassTile.cs

@@ -8,5 +8,20 @@ namespace Tiles
         {
             
         }
+        
+        /// <summary>
+        /// to be invoked when the Tile is clicked, handles the actions following on the click
+        /// </summary>
+        /// <param name="usable">the UsableItem that the Tile was clicked on with</param>
+        /// <returns>a subclass of BaseTile if the Tile has to change, null if it stays the same type</returns>
+        new public BaseTile Clicked(UsableItem usable) {
+            base.Clicked(usable);
+            BaseTile rv = null;
+            if (usable.GetType() == typeof(Items.Hoe))
+            {
+                rv = new FarmlandTile();
+            }
+            return rv;
+        }
     }
 }