Java applet keylistener

Question

I have the following code in Game.java:

public void start ()
{
    Thread thread = new Thread(this);
    thread.start();

    this.world = new World();
}

In the world class, I have the actual items of my game, a set of Walls, food and a player.

public class World {
    private Food food;
    private HashSet<Wall> walls = new HashSet<Wall>();
    private Player player; 
    ...
}

The problem is as follows: I want to have my keylisteners in the player class but I can't seem to figure out how to get this...

I've tried by implementing the KeyListener class in Player.java and implementing the 3 functions that come with that. However, player.java does not allow me to use this.addKeyListener(this) So my keyevents are never triggered...

How can I make this work?

Is this Swing (a JApplet)? AWT (uses Applet class)?

Hovercraft Full Of Eels
– Hovercraft Full Of Eels

2011-04-17 19:37:01 +00:00
Commented Apr 17, 2011 at 19:37 — Hovercraft Full Of Eels
– Hovercraft Full Of Eels, Commented Apr 17, 2011 at 19:37

SLaks · Accepted Answer · 2011-04-17 19:33:36Z

1

You need to call addKeyListener on your Applet / JApplet and pass the (same!) player instance as the listener.

answered Apr 17, 2011 at 19:33

SLaks

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2 Comments

FinalFrager Over a year ago

My goal was to keep everything nice and organised (e.g. only let the Game class talk to the World class and not the underlying Food and Player classes). For this solution (which does work) I have to add a getPlayer() method to the World class, which doesn't seem very clean to me. Or am I still doing something wrong?

SLaks Over a year ago

You could give the World a method that initializes itself from an Applet (by adding handlers)

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