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Trying to let a bullet fly in a correct angle

By UNDEAD_DC, with 16 replies.
Last reply by xFabi, almost 11 years ago:

Dan said you only want to set those values once If this is true, you can't put them into the method, because act() gets called forever, and so the values would be set over and over

Multi Touch

By jhadad, with 7 replies.
Last reply by danpost, almost 11 years ago:

Well, TouchEvent and TouchPoint are part of the javaFX library; however, all classes, regardless of library, have the Object class as their root. The EventListener class is part of the java.util library. As far as playing around with them, you will have to experiment on your own. You could look at what classes are used and how they are used with respect to the mouse and try to set it up similarly for your case.

Help with games memory/ performance

By Gish, with no replies.

So I spent a good amount of time on this (it's my first game), and was excited to find that you can run Greenfoot games on Android (with Droidfoot). However, my game does not seem to want to run on mobile devices. I receive heap-space memory errors after a few compilations on my PC, so I'm thinking it must be due to a memory issue in my game. Any pointers to help improve the games performance are greatly appreciated! http://www.greenfoot.org/scenarios/12530

Checking for the speed of an object when it comes in contact with another?

By DiplomatikCow, with 2 replies.
Last reply by xFabi, almost 11 years ago:

http://www.acsu.buffalo.edu/~gauravku/113/Assignments/8/Newtons-Lab-3/doc/SmoothMover.html Gonna get some sleep ._. , wait for Dan to reply if there's still questions Btw, are you hired by greenfoot Dan ^^?

Game over when hit 3 times

By Frost, with 4 replies.
Last reply by danpost, almost 11 years ago:

I do not think you are being consistent with the name of your field. I see 'healthPoint' as the name of the field; but I also see 'damagePoint' being used in the code. I think 'hitCount' might be a more appropriate name since hits are what it is counting.

Making a square hitbox

By Dillybar, with 8 replies.
Last reply by danpost, almost 11 years ago:

If you mean like taking an exaggeratedly large square transparent image and drawing Mario in the middle of it and then setting that image to a Mario object, then yes. All images are rectangular to begin with, regardless of where the actual color portions within that image are, however, and since normal collision detection uses the extent of the image, not the color portions within it, the hitbox is already rectangular. Most people have problems with the image itself being larger than the color portion within it and want the image size to be reduced without reducing the size of the color port

Need Help Spawning random actors

By Thanatos, with 2 replies.
Last reply by danpost, almost 11 years ago:

Will this be during gameplay? if so, what parts should be random? possibilities are (a) when one is spawned (b) which one is spawned, (c) where one is spawned.

Need help when touching another actor

By Thanatos, with 2 replies.
Last reply by Thanatos, almost 11 years ago:

Pacing Guide

By gmann, with 1 reply.
Replied to by davmac, almost 11 years ago:

gmann, the best place to ask for this sort of thing is probably the Greenroom, which focuses on teaching resources.

Actor not in World problem.

By MrBunni, with 10 replies.
Last reply by SomeRandomStuff, almost 11 years ago:

wait i will move this to another discussion please ignore

Basic AI Difficulties

By KingCowWill, with 3 replies.
Last reply by danpost, almost 11 years ago:

KingCowWill wrote...

enemyRot is just getting the rotation for the bullet that comes out of the TIE fighter.

Although that method of getting the rotation to the bullet may work, it is not good programming -- to use a class field for something that should belong to an object of the class. There are other ways to get the bullet to rotate the proper way. You can break line 55 above into its components, like this: <Code Omitted>The first line gets a local reference to the bullet created. T

Need Help with adding a 'health pack' to my game!

By JLItachi, with 17 replies.
Last reply by JLItachi, almost 11 years ago:

Never mind, I figured out what I did wrong, it works all perfectly now. Thanks for everything Dan!

Error with 2d array

By Raideron, with 6 replies.
Last reply by Raideron, almost 11 years ago:

It was indeed not in a method, this fixed it, thank you!

how to change the font

By Steven.Z., with 2 replies.
Last reply by Steven.Z., almost 11 years ago:

mirrorHorizontally() changes Image color. How to fix?

By EnderPicture, with 3 replies.
Last reply by EnderPicture, almost 11 years ago:

Running on Windows 8.1 With GreenFoot 2.4.0. http://gyazo.com/4cf93f7ab1d255929faeedb84123a248 http://gyazo.com/3ef0c9630b111660ee12440e31776cd1 I think it is the problem. How to fix it?

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