First, let's define some requirements for our simple game: A 600x600 window. A player on the screen, represented by a blue rectangle. The player can be moved by pressing W, S, A or D on the keyboard.
First of all, I must confess, the application RetrievalTrainer is still not perfect, I am sorry about that. To warm up with RetrievalTrainer download the file history.xml located in project directory ...