This site requires JavaScript, please enable it in your browser!

Discussions

You need to login to take part

Current Discussions

HOW OPEN A GREENFOOT PROJECT ON NETBEANS?

By LUXY, with 2 replies.
Last reply by LUXY, 2 days ago:

Thank you for the answer, I've followed the documentation step by step but the project dosn't start. When I run the project, It opens a dialog that shows : greenfoot.export.GreenfootScenarioApplication class wasn't found in LTA project. <<No main classes found>> I don't understand why, the greenfoot.jar that I have imported contains that class(GreenfootScenarioApplication.class). There is onother problem, when I compile the project, the terminal show me this message: warning: unknown enum constant Tag.Any reason: class file for threadchecker.Tag not found warning: unknown enum cons

Greenfoot 3.6.0 released

By nccb, with no replies.

Greenfoot 3.6.0 has now been released. The main feature of this release is that it moves to Java 11, which means a few extra notes are needed:

Greenfoot now requires a 64-bit CPU and 64-bit operating system. Our stats indicate over 95% of our users already have this. If you don't, you will need to stick with 3.5.4.
To solve Java packaging headaches on Ubuntu, Debian and co, we now include the JDK by default on Ubuntu. This should make it much easier to install for our Debian-derived Linux users.
The online export to this website has been upgraded to work with code produced by Java 11, but as yet the library we use doesn't have support for new Java 11 APIs. So if you start to use any methods introduced after Java 8 (e.g. the List.of() utility methods), this won't work in the online version.

Other than that, everything should be working as usual. Talking of the online export -- we've also now fixed the GifImage utility class so that it works in the online version. To take advantage of this, install 3.6.0, delete the GifImage class from your scenario, re-import it using the Edit -> Import class menu option, and re-export to the website.

Help me, plz.

By Handy, with 1 reply.
Replied to by danpost, 2 days ago:

<< Code Omitted >> What's wrong with this code?

Please show entire method.

NEED HELP ASAP Spawning an Actor when an actor is clicked FOR ASSESSMENT

By HydraLord257, with 5 replies.
Last reply by danpost, 2 days ago:

That really did not explain what you think each line does. You need to do more than one thing when the actor is clicked -- spawn an actor and play a sound. Therefore, you will need a block of code for the if statement: <Code Omitted>Now, "spawn" means "create and add to the world". You create an object by using the new keyword. For example (not your actual code -- just showing use of the keyword): <Code Omitted>Then, you add it into the world by using the

Tron Game, problem with spawning "line"

By _Tobi.X, with 2 replies.
Last reply by danpost, 2 days ago:

_Tobi.X wrote...

I spawn the "Line" ... and try to adjust the x and y location (with the SmoothMover class) of the spawn

I cannot see a need for the SmoothMover class for a "Line" object. It will not be moving. I suggest just placing a new "Line" object at the cycle's location before it moves and move just enough to not have the center of the cycle image over that new "Line" object. That way you can use the getObjectsAtOffset(0, 0, << "Line" class name +".class" >>) method to check for collisions.

win screen

By Bong_Lord, with 3 replies.
Last reply by danpost, 2 days ago:

Bong_Lord wrote...

im having problems with making both the world and switching the game over to that world, and the code within it has no errors but whenever all enemies are dead nothing else would happen. ive tried this in a sub world << Code Omittted >>

Where in the class did you try this?

NathanDaSweetman

I need this for assesment so... yeah. (How do i make it that when i shoot it doesnt go right and the way im facing?)

By NathanDaSweetman, with 2 replies.
Last reply by NathanDaSweetman, 2 days ago:

ok thanks that worked came in clutch my guy ;)

Getting image name of an object from a different class

By CP7, with 6 replies.
Last reply by CP7, 3 days ago:

call another class's method

By Fargesia, with 16 replies.
Last reply by Fargesia, 3 days ago:

OK got it all figured out, your line works just fine! Many thanks for the help!!

obtener ubicación en la que inicia mi personaje

By joelORTEGA, with 2 replies.
Last reply by joelORTEGA, 3 days ago:

Random World to be Spawned under a subclass that has 10 worlds in them when pressed a button

By HydraLord257, with 4 replies.
Last reply by HydraLord257, 3 days ago:

Oh it worked many thanks :) p.s. might still ask plenty of questions tho cus I ain't good at programming :|

Class.Car should bounce off the Class.Wall but doesnt

By Wellvyre, with 5 replies.
Last reply by danpost, 3 days ago:

Wellvyre wrote...

I dont know if i wrote it right im from germany and my english writing is pretty terrible...should i just like send my whole game or is it understandable

I don't think sending the whole game is necessary.

the green color is part of the worlds background, The world has a circle like field that is blue ( the blue field is part of the background ) and the green part is around the blue part and it is also a part of the My world - World background

Okay -- so your actor is to be restricted to a certain range from the center of the screen and you want your a

Using a variable which is defined in actor in a world

By FarbKlexx, with 1 reply.
Replied to by danpost, 3 days ago:

FarbKlexx wrote...

I have kind of a counter in an actor and when it hits a ceirtain case, the variable which is defiened in the actor should = 1. When the Variable == 0 the world should delete the actor and create a different one. How can I ask in the World if the variable is == 0?

Instead of asking, just tell the world when it hits zero. In actor: <Code Omitted>In world, add a method: <Code Omitted>

Shooting actor. NEED HELP!

By rtrout, with 6 replies.
Last reply by rtrout, 4 days ago:

never mind. I got it. Thanks for the code. You're a lifesaver!

Iterating the Name of a Variable

By MRCampbell, with 3 replies.
Last reply by Super_Hippo, 4 days ago:

The number 9 represents the number of values in the array, not the highest index. Yes, the II was one I too much in there. (And nice copy&paste probably.) :P You can either use: <Code Omitted> or:

2

X