From 1b5926007cbf9b91287f577acee5e4dc46fda551 Mon Sep 17 00:00:00 2001
From: fjc40 <fjc40@uclive.ac.nz>
Date: Thu, 27 Jul 2017 14:07:25 +1200
Subject: [PATCH] Visualiser ConnectionController: Clicking the host button
 doesn't create more than one server.

---
 .../Controllers/ConnectionController.java     | 22 ++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/racevisionGame/src/main/java/visualiser/Controllers/ConnectionController.java b/racevisionGame/src/main/java/visualiser/Controllers/ConnectionController.java
index 7652f98e..92ca8809 100644
--- a/racevisionGame/src/main/java/visualiser/Controllers/ConnectionController.java
+++ b/racevisionGame/src/main/java/visualiser/Controllers/ConnectionController.java
@@ -43,6 +43,13 @@ public class ConnectionController extends Controller {
 
     private ObservableList<RaceConnection> connections;
 
+
+    /**
+     * Represents whether the client is currently hosting a game already - this is to ensure they don't launch multiple servers.
+     */
+    private boolean currentlyHostingGame = false;
+
+
     @Override
     public void initialize(URL location, ResourceBundle resources) {
         // TODO - replace with config file
@@ -104,12 +111,17 @@ public class ConnectionController extends Controller {
      */
     public void addLocal() {
         try {
-            Event game = Event.getEvent();
-            urlField.textProperty().set(game.getAddress());
-            portField.textProperty().set(Integer.toString(game.getPort()));
+            //We don't want to host more than one game.
+            if (!currentlyHostingGame) {
+                Event game = Event.getEvent();
+                urlField.textProperty().set(game.getAddress());
+                portField.textProperty().set(Integer.toString(game.getPort()));
+
+                game.start();
+                addConnection();
 
-            game.start();
-            addConnection();
+                currentlyHostingGame = true;
+            }
         } catch (InvalidRaceDataException e) {
             e.printStackTrace();
         } catch (XMLReaderException e) {