added Player GameObject, updated GrassTile.Clicked()

Assets/Scripts/PlayerController.cs

@@ -7,7 +7,9 @@ public class PlayerController : MonoBehaviour {
     private Dictionary<Item, int> inventory;
     private int money;
     private UsableItem selectedItem;
-    
+
+    public UsableItem SelectedItem => selectedItem;
+
     private static PlayerController instance;
     
     public int startMoney = 100;
@@ -39,4 +41,6 @@ public class PlayerController : MonoBehaviour {
           Debug.Log("An item requested to select isn't in the inventory" + item);  
         }
     }
+    
+    
 }

Assets/Scripts/TileBehaviour.cs

@@ -24,12 +24,18 @@ public class TileBehaviour : MonoBehaviour
     void OnMouseDown()
     {
         Debug.Log("Clicked");
-        tile.Clicked(/* Current tool */ null);
+        
+        // SelectedItem always null for now 
+        BaseTile temp = tile.Clicked(PlayerController.getInstance().SelectedItem);
+        if (temp != null)
+        {
+            SetTile(temp);
+        }
     }
 
     void SetTile(BaseTile tileToSet)
     {
         tile = tileToSet;
-        GetComponent<SpriteRenderer>().color = tile.getColor;
+        GetComponent<SpriteRenderer>().color = tile.getColor; // TODO: Change to Sprite 
     }
 }

Assets/Scripts/Tiles/BaseTile.cs

@@ -9,7 +9,7 @@ namespace Tiles
     {
         protected Color color;
         public Color getColor => color;
-        // Later to be replaced with
+        // TODO: Change to Sprite, also in subclasses
         // public Sprite sprite;
         
         protected BaseTile(Color color)
@@ -32,9 +32,10 @@ namespace Tiles
 
         }
 
-        public void Clicked(UsableItem usable)
+        public BaseTile Clicked(UsableItem usable)
         {
             Debug.Log(usable.ToString() + " used on " + this.ToString());
+            return null;
         }
 
         

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;
+        }
     }
 }