Time for action – creating the UI

To create the user interface for our game, perform the following steps:

1. 1. Add the following declaration to the declarations area of the TankBattlesGame class as follows:

   Dictionary<string, UIWidget> uiElements = 
       new Dictionary<string, UIWidget>();

2. 2. Create a new region in the TankBattlesGame to hold UI-related code as follows:

   #region User Interface
   #endregion

3. 3. In the new User Interface region, add a shell for a callback method for handling button-click events as follows:

   void UIButton_Clicked(object sender, UIButtonArgs e)
   {
   
   }

4. 4. Still inside the User Interface region, add the CreateUIElements() method as follows:

   public void CreateUIElements()
   {
     uiElements.Add("p1Up", 
       UIHelper.CreateButton("p1Up", "U", 60, 10));
     uiElements.Add("p1Down", 
       UIHelper.CreateButton("p1Down", "D", 60, 65));
     uiElements.Add("p1Left", 
       UIHelper.CreateButton("p1Left", "L", 5, 35));
     uiElements.Add("p1Right", 
       UIHelper.CreateButton("p1Right",...