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getWorld().removeObject(this); // Actor not in world error

By needcodehelp, with 3 replies.
Last reply by needcodehelp, over 14 years ago:

Thank you, will try!

How do you detect whether certain actors are gone

By kartikitrak, with 5 replies.
Last reply by kartikitrak, over 14 years ago:

Thanks so much! It worked perfectly : D

A strange NullPointer

By darkmist255, with 3 replies.
Last reply by darkmist255, over 14 years ago:

Well, all appears to be fine and dandy after cleaning up a bunch of code, I think I must've called the method twice? That was more difficult than it should've been :D.

nullpointerexception

By tylers, with 1 reply.
Replied to by davmac, over 14 years ago:

Then 'p' is null.

Help with a function? :)

By Jesse_Orange, with 9 replies.
Last reply by Jesse_Orange, over 14 years ago:

This code in SnakeHead adds a SnakeBody <Code Omitted> This is the SnakeBody

onGround question

By xChocoMel, with 1 reply.
Replied to by MrDoomsday, over 14 years ago:

Why not just add a second boolean like "onPlatform()" and use Platform.class in that one instead?

make .apk

By akin, with 3 replies.
Last reply by trash1000, over 14 years ago:

Sorry, I really don't know what you're trying to say.

What program should I use to make the sprites for my programs?

By steved, with 4 replies.
Last reply by steved, over 14 years ago:

Thanks everyone! I have paint.net now and I'm happy with it.

Making yourself null

By SPower, with 8 replies.
Last reply by SPower, over 14 years ago:

Thanks for the explanations!

Changing Levels

By dark_sky, with 2 replies.
Last reply by dark_sky, over 14 years ago:

Sounds good, thank you for your help!

Changing importance of overlapping objects

By MrDoomsday, with 2 replies.
Last reply by MrDoomsday, over 14 years ago:

Thanks! This answer is exactly what I was looking for.

How can i detect the edge of the world?

By dandefender2, with 4 replies.
Last reply by steved, over 14 years ago:

I used this code to make it sort of bounce off the edges but I'm still working on it: <Code Omitted>You could change the distance by changing the number so it fits the siz

the necessity of public and private

By Gazzzah, with 1 reply.
Replied to by mjrb4, over 14 years ago:

There's 4 levels of visibility in Java - two are public and private, another is protected and the 4th is "package private". The 4th is different because it has no keyword, it's the "default" visibility per-se, which is what you get if you leave public / private off. Your code may still work when using the default visibility since usually in Greenfoot all your code is in the same package, but unless you're dealing with packages and specifically want package private access for some reason, you should still use pick a visibility modifier for good practice.

Changing Images for Visual Appeal

By JayWood860, with 11 replies.
Last reply by JayWood860, over 14 years ago:

this is perfect! thanks

make a simple dialogue

By Andriyanto, with no replies.

hi.. i want ask..how make a dialogue in grenfoot.? i want make a dialogue for my game..

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