Portal observer v2, Portal setButtonText

src/projlab/MainPanel.java

@@ -90,6 +90,10 @@ public class MainPanel extends GridPane {
         Platform.runLater(() -> btn.setText(btnStr));
     }
 
+    private void setButtonText(Portal p){
+
+    }
+
     private class AsteroidClickedHandler implements EventHandler<MouseEvent> {
         private final Asteroid ast;
         public AsteroidClickedHandler(Asteroid a) {
@@ -159,4 +163,21 @@ public class MainPanel extends GridPane {
         @Override
         public void portalInventoryChanged(Settler s) {}
     }
+
+    private class PortalGUIObserver implements Portal.PortalObserver {
+        @Override
+        public void portalMoved(Visitable newAsteroid, Portal p) {
+            setButtonText(p);
+        }
+
+        @Override
+        public void portalBecomeKerge(Portal p) {
+            setButtonText(p);
+        }
+
+        @Override
+        public void portalExploded(Portal p) {
+            setButtonText(p);
+        }
+    }
 }