1 files changed, 27 insertions, 2 deletions

diff --git a/report/progression.tex b/report/progression.tex
index da5e34e..bb5a548 100644
--- a/report/progression.tex
+++ b/report/progression.tex
@@ -114,12 +114,37 @@ passed to any method in any class.
 
 \subsection{Game, GameEngine, UserInterface}
 
+\subsubsection{Game}
+
+The constructor of this class instantiates the GameEngine and the UserInterface,
+and set the output of the first to the second.
+
+\subsubsection{GameEngine}
+
+This class contains the attributes and methods previously contained in the Game
+class.
+
+Instead of printing to the standard console output, it prints to the GUI.
+
+\subsubsection{UserInterface}
+
+This class implements the graphical user interface of the game. It basically
+creates the different window components and provides methods to
+interact with them.
+
 \subsection{Parser/Scanner}
 
-\subsection{UserInterface.addActionListener()}
+Since commands are entered through a text field instead of the console, the
+use of Scanner that read from the standard system input is not required anymore.
+
+\subsection{addActionListener() and actionPerformed()}
 
-\subsection{UserInterface.actionPerformed()}
+The addActionListener() of an object x takes as parameter an object y that have
+a actionPerformed() method. When an action event occurs on x, this method on y
+is called and an ActionEvent is passed as parameter.
 
+The actionPerformed() method then does the appropriate action according to the
+event that happened.
 
 \section{Zuul MVC}