double xVelocity
double yVelocity
int gameBoardWidth
int gameBoardHeight
double centerX
double centerY
int shipWidth
int shipHeight
double uLeftXPos
double uLeftYPos
double rotationAngle
double movingAngle
javax.swing.JTextField tfQuantity
javax.swing.JLabel welcome
javax.swing.JLabel lQuantity
javax.swing.JLabel sound
javax.swing.JRadioButton onButton
javax.swing.JRadioButton offButton
javax.swing.JPanel settingsPanel
javax.swing.JButton startGame
int quantity