Line 1 should be: with the following line at the top of the class: As an alternative, line 1 could be written as:

Oh, sorry. I literally forgot to make it a subclass of Actor class

this is the start menu code import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo) /** * Write a description of class Menu here. * * @author (your name) * @version (a version number or a date) */ public class Menu extends World { flecha flecha= new flecha(); private int opcion=0; /** * Constructor for objects of class Menu. * */ public Menu() { super(600, 400, 1); prepararMundo(); } private void prepararMundo() { addObject(new Play(),300,190); addObject(new Goout(),320,250); addObject(flecha,230,185); } public void act() { if (Greenfoot.isKeyDown("UP") && opcion!=0) {opcion++;} if (Greenfoot.isKeyDown("DOWN") && opcion!=1) {opcion--;} if (opcion>=2) opcion=0; if (opcion<0) opcion=1; flecha.setLocation(275,250 +(opcion*100)); if (Greenfoot.isKeyDown("SPACE") || Greenfoot.isKeyDown("ENTER")) { switch(opcion) { case 0: Greenfoot.setWorld(new MyWorld()); break; case 1: Greenfoot.stop(); break; } } } }

What do you mean by "is damaged with the gameover screen"? Details please! Nothing seems totally wrong with the Menu class given here.

I mean the menu is what is wrong because when I collide with a rival it shows the game over screen fine but when I reset it in the game menu it appears together with the game over screen

You might have used static keyword somewhere. Probably this might be the cause of it (just a guess, not sure though)

Before posting anything, please try to read as a third person. Would you please add some common points like, how the animation should look like and how it should work (for example, if the cursor is above the menu, it's complexion turns darker)

Hello, I'm creating a car game, and I wanted to make my road move, but not in the real way, that is, it shows that it is moving, if someone has a code to do it, send it to me.

What I have to say is that when I give it pley in my menu, it looks like the road moves slowly, and when some time goes by, it goes fast, it is the same as the rivals that I have since the rivals after passing twice in the world they increase the speed is what I want the road to do

One way is to add lines to the road. A center line whose dashes moves down would make the road appear to be moving downward (or passing under a vehicle, facing upward, that is stationary but appearing to move forward). To make it more realistic, you can save the image of one segment of the line and copy/scale in proportion to the y-coordinate value. The speed of the line can also be made to be in proportion to the y-coordinate value to give some depth to what is being viewed (this would most probably require the y-coordinate value be saved and used in more precise than pixel units).