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Internal factors at the Greenfoot site

By colorfulteen, with 18 replies.
Last reply by danpost, almost 12 years ago:

davmac, your post has been recieved -- thank you.

new greenfoot broke scenario?

By ImFerocious, with 8 replies.
Last reply by jbrucker, almost 12 years ago:

Greenfoot 2.1.2 does fix the problem. Thanks. I liked the old installer for windows better, though. the msi forced me to uninstall greenfoot 2.1.0 before installing 2.1.2. The old greenfoot and bluej installer would cleanly overwrite a previous version in same install dir.

Run Greenfoot with -ea

By Evmorov, with 1 reply.
Replied to by davmac, about 12 years ago:

You can edit the greenfoot.defs file (part of the Greenfoot installation) and change the "bluej.vm.args" property (add "-ea" at the end).

GreenfootSound should pause when pause the scenario?

By bourne, with 2 replies.
Last reply by bourne, about 12 years ago:

That makes sense. And okay cool! Thanks again

Paint Order - Order of detection bug

By bourne, with 8 replies.
Last reply by bourne, about 12 years ago:

Okay thanks davmac =)

Failing at scoring

By rvevea, with 5 replies.
Last reply by danpost, about 12 years ago:

Struggling with objects - (typecasting?)

By ez4u2c, with 9 replies.
Last reply by davmac, about 12 years ago:

An example of futile typecasting as a descendant class (extensions are lost):

Ok, you're correct that in this case the cast is pointless. (It is still not completely meaningless - the cast will be checked at runtime, and an exception will be thrown getWorld() returns something that is not a Space; but this usage is uncommon).

And an example of the default (no typecast) returning the ancestor (World),:

The "getWorld()" method call results in an expression of type World, because that is what it is declared to return. This particular example you have given w

"checkKeypress" Help!

By Stekpannadeath, with 4 replies.
Last reply by kiarocks, about 12 years ago:

your welcome, the semi colons at the end of if statements signal the end of the statement, and the other code is run without any keys pressed.

Sound intensity

By K_O_P, with 2 replies.
Last reply by K_O_P, about 12 years ago:

Thank you very much! I'll try it! :)

If Statement Multiple Conditions

By LastingLuck, with 5 replies.
Last reply by LastingLuck, about 12 years ago:

I changed it to what you said, and it worked perfectly. I'm still very new to programming so thanks a lot for the help.

Changing a Background

By rvevea, with 2 replies.
Last reply by rvevea, about 12 years ago:

Extremely helpful! Thank you! just for reference: Created a global boolean <Code Omitted> then had the if statements check the boolean value like so: <Code Omitted>

OMG what's wrong with Greenfoot this time :(

By Herman, with 6 replies.
Last reply by davmac, about 12 years ago:

Follow the link to the other discussion (in my previous post) - it has a link to instructions on how to clear the cache.

Tile positions.

By actinium, with 2 replies.
Last reply by actinium, about 12 years ago:

Thanks for your reply. I know that the coordinates are 0,0 top left. Wait a minute, if i addObject at 0,0 its actually the centre of the image, while a tile at 0,0 is at the top left. Lol, i need an offset of 12.5 for x and y coords in addObject, got it thanks.

World Start

By Builderboy2005, with 3 replies.
Last reply by davmac, about 12 years ago:

Not sure - it probably shouldn't have done that (assuming you didn't actually instantiate the other world). Maybe a bug in the logic which decides which world was instantiated last; I'll check over the code when I get a chance.

Piano 1 book scenario

By carterfootball, with 7 replies.
Last reply by carterfootball, about 12 years ago:

The x++ did help though I appreciate the help

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