TODOs FIXED Display.java
TODOs FIXED Player.java
UPDATED Main.java

Updated test
UPDATED RollingBallGame.java

Updated method play to match with TODOs fixed
UPDATED Player.java

CHANGED class Player.java renamed in PlayerFixed.java
UPDATED PlayerFixed.java

UPDATED method initialize
UPDATED RollingBallGame.java

UPDATED method play
UPDATED Main.java

UPDATED test
UPDATED Ball.java

ADDED method setCenter
UPDATED PlayerFixed.java

UPDATED comment
UPDATED Display.java

Renamed class Display.java in ConsoleDisplay
UPDATED ConsoleDisplay.java

Updated class now implements Display.java
UPDATED PlayerFixed.java

Updated class now implements Player.java
CREATED Interface Display.java
CREATED interface Player.java
UPDATED NullVectorExcpetion.java

Renamed class NullVectorException.java in SamePointException.java to be
more relevant
UPDATED SamePointException.java

Renamed class
UPDATED Segment.java

Renamed Exception threw by the constructor
UPDATED RollingBallGame.java

Added parameters display and player
Updated constructor RollingBallGame, now use display and player
UPDATED Main.java

Added display and player types in the test