/*Emmanuel SRIVASTAVA-TIAMZON*/ import javax.swing.*; import java.awt.event.*; import java.awt.*; public class MouseWheel implements MouseWheelListener { public MouseWheel() { super(); } @Override public void mouseWheelMoved(MouseWheelEvent evenement) { if(evenement.getWheelRotation() < 0) { this.newNiveau(evenement); }else { this.newNiveau(evenement); } } }