XNA 4.0 Game Development by Example Beginner's Guide

Time for action – letting the player play

1. Modify the Update() method of Game1.cs by adding the following before the call to base.Update(gameTime):

   switch (gameState)
   {
       case GameStates.TitleScreen:
           if (Keyboard.GetState().IsKeyDown(Keys.Space))
           {
               gameBoard.ClearBoard();
               gameBoard.GenerateNewPieces(false);
               playerScore = 0;
               gameState = GameStates.Playing;
           }
           break;
   
       case GameStates.Playing:
           timeSinceLastInput +=
             (float)gameTime.ElapsedGameTime.TotalSeconds;
   
           if (timeSinceLastInput >= MinTimeSinceLastInput)
           {
               HandleMouseInput(Mouse.GetState());
           }
   
           gameBoard.ResetWater();
   
           for (int y = 0; y < GameBoard.GameBoardHeight; y++)
           {
               CheckScoringChain(gameBoard.GetWaterChain(y));        
           }
   
           gameBoard.GenerateNewPieces(true);
   
           break;
   }

What just happened?

The Update() method ...