Discussions

The is a series of problems with how you are trying to add worms into the world during game-play. First, in the wormToevoegen method, you have this: <Code Omitted>Line 2 creates a variable to hold a Worm object; then, line 3 assigns its value to itself (more of a fact than a command) -- its value remains null. Line 4 then tries to call method on a non-existent (null) worm. Let us now assume you had created a worm and assigned it t

SOLVED: The methods must be public!

Initial size plus 'a' times 10.

Exactly! Thanks so much!!

I fixed it thanks anyways

A few things to consider:

• only check collision between two object in one class -- not in both (I would put it all in the Mario class);
• only check collision immediately after each move of the actor;
• keep horizontal and vertical movement code separate (knowing which move caused a collision will tell you the orientation of the colliding actors);
• you may want to dispense with the array of enemies in your world class; I doubt very much that there is a need for it

Please give your reason for the array if you feel you need it. T

Thank you so much, I was finally able to enter the app!

Thanks very much danpost, sorry for the late reply.

If I understand what you are looking for correctly, Hippo is correct about not needing a Cooldown class; but, my interpretation is that you just need the following in your World subclass: <Code Omitted>With this, there will be a 1 second delay before act cycle

Also: (5) infinite (or very long) loop your code that only gets triggered occasionally. Does the scenario actually stop running - that is, does the "pause" button change back to saying "run"? If it does, it's either an exception or you've got an explicit Greenfoot.stop() call (or Greenfoot bug, as danpost suggests, though I think this is very unlikely). Otherwise, it's most likely an infinite or long-running loop in your code.

I'm not sure what character that is, but it is not the correct quote. You need to use the < " > character, not < ¨ >. On a UK keyboard it is shift+2, on a US keyboard it is shift+' (the key next to "enter").

Hmm, sorry, the link doesn't appear to work. It should be: http://bugs.bluej.org/browse/GREENFOOT-803?jql=project%20%3D%20GREENFOOT%20AND%20fixVersion%20%3D%203.5.1 You will have to copy/paste.

Please show what you tried. That way we can instruct you in such as manner that you may learn from where you were going awry.

thanks