Host starts with button in ConnectionController

- Converted Event to Singleton for configuring and hosting no more than one game instance.
- Retrieve address and port from ConnectionAcceptor
- Automatically add local host to host list

#story[1010]

racevisionGame/src/main/java/visualiser/Controllers/ConnectionController.java

@@ -8,11 +8,17 @@ import javafx.scene.control.TableColumn;
 import javafx.scene.control.TableView;
 import javafx.scene.control.TextField;
 import javafx.scene.layout.AnchorPane;
+import mock.app.Event;
+import shared.exceptions.InvalidBoatDataException;
+import shared.exceptions.InvalidRaceDataException;
+import shared.exceptions.InvalidRegattaDataException;
+import shared.exceptions.XMLReaderException;
 import visualiser.model.RaceConnection;
 
 import java.io.IOException;
 import java.net.Socket;
 import java.net.URL;
+import java.net.UnknownHostException;
 import java.util.ResourceBundle;
 
 /**
@@ -41,8 +47,6 @@ public class ConnectionController extends Controller {
     public void initialize(URL location, ResourceBundle resources) {
         // TODO - replace with config file
         connections = FXCollections.observableArrayList();
-        connections.add(new RaceConnection("livedata.americascup.com", 4941));
-        connections.add(new RaceConnection("localhost", 4942));
 
         connectionTable.setItems(connections);
         hostnameColumn.setCellValueFactory(cellData -> cellData.getValue().hostnameProperty());
@@ -95,4 +99,28 @@ public class ConnectionController extends Controller {
         }
 
     }
+
+    /**
+     * Sets up a new host
+     */
+    public void addLocal() {
+        try {
+            Event game = Event.getEvent();
+            urlField.textProperty().set(game.getAddress());
+            portField.textProperty().set(Integer.toString(game.getPort()));
+
+            game.start();
+            addConnection();
+        } catch (InvalidRaceDataException e) {
+            e.printStackTrace();
+        } catch (XMLReaderException e) {
+            e.printStackTrace();
+        } catch (InvalidBoatDataException e) {
+            e.printStackTrace();
+        } catch (InvalidRegattaDataException e) {
+            e.printStackTrace();
+        } catch (UnknownHostException e) {
+            e.printStackTrace();
+        }
+    }
 }

racevisionGame/src/main/java/visualiser/model/RaceConnection.java

@@ -15,6 +15,11 @@ public class RaceConnection {
     private final int port;
     private final StringProperty status;
 
+    /**
+     * Constructor for remote host connections.
+     * @param hostname URL for remote host
+     * @param port port for game feed
+     */
     public RaceConnection(String hostname, int port) {
         this.hostname = new SimpleStringProperty(hostname);
         this.port = port;