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

Discussions

You need to login to take part

Current Discussions

Why is my browser ignoring the <APPLET> tag?

By Wasupmacuz, with 4 replies.
Last reply by Nosson1459, almost 9 years ago:

Wasupmacuz wrote...

Never mind. It turns out that Google Chrome no longer supports the <APPLET> technology. Source: Oracle

It's been like that for a while. For sure before you became a Greenfoot user, which is why I suggested Internet Explorer, since that works for me.

Wasupmacuz wrote...

I guess you beat me to it :)

How to place actor anywhere except on a wall

By vermox, with 6 replies.
Last reply by Nosson1459, almost 9 years ago:

@danpost Well then there should be an unmentioned compilation error. How can someone use methods from World and Actor in the same class without any prefix. These are the following methods used: Actor:

getWorld()
getX()
getY()

addObject(actor, x, y);

danpost wrote...

BTW, the first code-set above also uses 'addObject' without a 'getWorld()' in front of it.

Basically there is a contradiction. As you said: 'addObject(...' but also getWorld, getX, and getY. So vermox's code seems to be in an actor su

Getting an error that i do not know how to fix

By Wasupmacuz, with 3 replies.
Last reply by Wasupmacuz, almost 9 years ago:

danpost wrote...

You have the BottomSensor class extending the Player class. So, when you create a BottomSensor object, you have the Player class constructor creating another one, and another one and so on. -- until your either you run out of memory or the stack overflows (whichever occurs first, which in your case was the stack overflow). A BottomSensor object is not a player and therefore its class should not extend the Player class -- it should extend the Actor class.

Okay thank you Dan. Stupid mistake, I guess :)

Moving an actor one space at a time

By vermox, with 10 replies.
Last reply by danpost, almost 9 years ago:

vermox wrote...

IIt's just the package classes that I'm not used to I think.

Well, its the same learning process as any other package you might import. You look at the documentation to see what the individual classes are for (in general description of class) and what they can do (fields, constructors and methods).

adding objects of the same class to the world with different variables set

By rick_kik, with 9 replies.
Last reply by rick_kik, almost 9 years ago:

@Super_Hippo Ok thanks for your help! It's working great!

How to make a Object Solid

By Gaming_100, with 1 reply.
Replied to by Fifilein, almost 9 years ago:

In my game I am using this Code: <Code Omitted>Maybe this can help you!

AI bouncing off walls!

By S77, with 4 replies.
Last reply by S77, almost 9 years ago:

thanks ill try that aswell!

Moving Plattforms

By Fifilein, with 26 replies.
Last reply by Fifilein, almost 9 years ago:

Hockey Help!

By MadmanSA, with 4 replies.
Last reply by danpost, almost 9 years ago:

Nosson1459 wrote...

Do you have anything so far, or you want me to create the whole scenario? It will be easier to work on classes that you already have (and shown with code-tags). If you don't have anything at all then you should read this.

We cannot help with these things until we see what you currently have. For a working counter, we need to see everything (all codes related to or using the counter and we need to know where each given code is located in your p

Returning Sum

By rockon411, with 3 replies.
Last reply by rockon411, almost 9 years ago:

Setting an Image on another actor

By Gaming_100, with 6 replies.
Last reply by danpost, almost 9 years ago:

Gaming_100 wrote...

Is there a way to send a simple command to the other actors?

Does this mean you have multiple actors that you want to have changing colors when the button is clicked -- like ALL actors of a given type?

Preventing objects from being placed on top of each other

By SeaShore, with 1 reply.
Replied to by danpost, almost 9 years ago:

SeaShore wrote...

Do you guys have any recommendations on how to fix my fixPlacement method? Or should I try something else entirely to prevent the buttons from overlapping each other?

Well, you should not try to adjust their positions from the Button class (remove thee 'fixPlacement' method from the class). It appears to me that you have 16 possible answers and you are trying to shuffle them while placing then into the world. I would prefer to shuffle the buttons first, then add them into the world in their shuffled ordering. It is, however, possible to shuffle them while adding t

Healthbar

By Nooooob, with 21 replies.
Last reply by Nooooob, almost 9 years ago:

Nosson1459 wrote...

In your MyWorld class change line 8 to: addObject(healthbar, 50, 10);

It's working. Thanks a lot!

Nosson1459 wrote...

Sorry for all the trouble - my fault.

Don't be sorry, thanks for the help :) Tbh I wouldn't have figured it out anytime soon.

Actor collecting something

By ironphoenix20, with 5 replies.
Last reply by Super_Hippo, almost 9 years ago:

I really have no idea how you can get a NullPointer exception when you check if it is not null right before it =/

i cant get the colours working it keeps show an error every time i put it in, Any help would be very much appreciated!

By S77, with 7 replies.
Last reply by danpost, almost 9 years ago:

i took your advise anyway and i worked thanks!

You probably do not have this import then: <Code Omitted>which would allow you to use 'Color.WHITE' instead of 'greenfoot.Color.WHITE'.

368

X