public void init(boolean joystickActif){
this.setLayout(null);
this.setPreferredSize(DIMENSION);
fl = new FileLoadeur();
fl.init();
this.comboTerrain = new JComboBox();
this.comboTerrain.setBounds(10, 10, 140, 20);
this.comboTerrain.setModel(new DefaultComboBoxModel(fl.getNomsTerrain().toArray()));