fix start game in launcher controller

src/main/scala/controller/LauncherController.scala

@@ -5,6 +5,7 @@ import model.infection.VirusConfiguration
 import model.powerUp.{PowerUp, PowerUpType}
 import model.world.Filters.given
 import model.world.Region
+import view.game.GameView
 
 /**
  * Class that represent the controller that bind the Game Model with the Launcher View
@@ -16,4 +17,17 @@ class LauncherController(val gameModel: GameModel):
    */
   def getAllRegions: List[Region] = gameModel.world.getRegions
 
-
+  /**
+   * Start a game session
+   * @param startRegionName is the start region name
+   * @param virusName is the game virus name
+   */
+  def startGame(startRegionName: String, virusName: String): Unit =
+    val gameEngine: GameEngine = new GameEngine(gameModel)
+    val gameView: GameView = new GameView(gameEngine)
+    gameEngine.setGameView(gameView)
+    new Thread {
+      override def run(): Unit =
+        gameView.start()
+        gameEngine.start(startRegionName, virusName)
+    }.start()

src/main/scala/view/launcher/LauncherView.scala

@@ -49,14 +49,7 @@ class LauncherView(val launcherController: LauncherController):
   constraints.gridy = constraints.gridy + 1
   val btnStartGame: JButton = new JButton("Start game!")
   btnStartGame.addActionListener((e: ActionEvent) => {
-    val gameEngine: GameEngine = new GameEngine(this.launcherController.gameModel)
-    val gameView: GameView = new GameView(gameEngine)
-    gameEngine.setGameView(gameView)
-    new Thread{
-      override def run(): Unit =
-        gameView.start()
-        gameEngine.start(lstRegions.getSelectedValue, txtVirusName.getText)
-    }.start()
+    this.launcherController.startGame(lstRegions.getSelectedValue, txtVirusName.getText)
     this.frame.dispose()
   })
   btnStartGame.setEnabled(false)