Added notifyObservers()-method.

src/main/java/edu/ntnu/stud/chaosgame/controller/ChaosGameObserver.java

@@ -6,7 +6,7 @@ import edu.ntnu.stud.chaosgame.model.game.ChaosGameDescription;
 
 /**
  * Observer interface for monitoring changes to the active
- *
+ * TODO: Do we want to have separate update methods for the canvas and description or just one for the whole game? (likely the latter)
  */
 public interface ChaosGameObserver {
 // TODO: Create interface
@@ -16,12 +16,14 @@ public interface ChaosGameObserver {
    *
    * @param canvas the canvas.
    */
-  void updateCanvas(ChaosCanvas canvas);
+  //void updateCanvas(ChaosCanvas canvas);
 
   /**
    * Perform update of the ChaosGameDescription.
    *
    * @param description the description.
    */
-  void updateDescription(ChaosGameDescription description);
+  //void updateDescription(ChaosGameDescription description);
+
+  void update(ChaosGame game);
 }

src/main/java/edu/ntnu/stud/chaosgame/model/game/ChaosGame.java

@@ -71,6 +71,15 @@ public class ChaosGame {
     this.observers.addAll(Arrays.asList(observers));
   }
 
+  /**
+   * Notify the observers that a change has occurred in the chaos game.
+   */
+  public void notifyObservers() {
+    for (ChaosGameObserver observer : this.observers) {
+      observer.update(this);
+    }
+  }
+
   /**
    * Get the canvas of this chaos game.
    *