Comments on: Creating a Blackberry Game - Part 6

By: Toni

Toni — Sun, 21 Feb 2010 03:26:11 +0000

Thanks for the kudos Timon! Glad I could help a bit.

By: Timon

Timon — Tue, 27 Oct 2009 21:11:31 +0000

Hi Toni,

Thanks for this super tutorial. I have been programming Java for a while, but have just started with the RIM API. This tutorial helped familiarize me not only with using basic screens, but with more advanced graphics, sound, and multi-threading. I may have to try my hand at creating a game, just for fun. Thank you again for your time, effort, and willingness to share. Your work is greatly appreciated!

By: Toni

Toni — Sat, 04 Jul 2009 19:19:43 +0000

Hey HR -

Those are some strange problems, it sounds like some arguments might be getting switched around or something to that effect, or that the hero object isn’t the first one in the vector, which would happen if refresher was somehow being called before the hero object was instantiated. Are you sure the code is entered exactly as is? I would look around those locations to make sure.

The only difference I can think of with the Pearl that would somehow affect the game is the difference in screen size, but I can’t imagine it causing those kind of issues. Let me know if you find anything with the hero not being loaded first.

By: hr

hr — Fri, 03 Jul 2009 18:37:28 +0000

hey toni, first of all thanks for the great tutorial! i copied ur code to make sure i could build the game n then transfer it to my blackberry, though i encountered a few problems:

-when hero gets hit he goes to the upper-left hand corner
-life meter doesnt decrease when hero gets hit
-neither enemies nor their beams are visible, but are there because i get hit

i dont think it matters but im on eclipse and a pearl 8130. any help will be greatly appreciated! thanks!

By: Darwin

Darwin — Tue, 30 Jun 2009 10:20:42 +0000

*edit to post above - the resources go in the ’src’ folder/filter not the package one, late here and the way it’s laid out fooled me

By: Darwin

Darwin — Tue, 30 Jun 2009 10:03:44 +0000

Figured it out, it was actually kind of obvious just a little different than what I’m used to. Had to throw the resource files (images/music) in a folder (just made one on c:\ for simplicity) and then right click on your package->import->general->file system. Once I got to that point I just navigated to the folder that I had my resources in, checked them all off and hit import. I originally imported them to the project root but that didn’t work, once I moved them over a couple levels to my package ‘folder’ they compiled into the COD no prob. There may be a quicker way to do this but after messing around for a while this worked for me, the “/” for the music was in fact needed as well.

Thanks for the response and the best tutorial I’ve found so far on this subject! I still have a few kinks to work out where I went and modified the code a bit, but it seems to be a success other than that.

By: Toni

Toni — Mon, 29 Jun 2009 15:06:49 +0000

Hi Darwin -

I know using the Blackberry JDE I just dropped resources (including the midi file) into the root of the project, and then the getBitmapResource/getResourceAsStream methods were able to find them (I had used a leading slash for getResourceAsStream, not sure if it’s necessary but make sure you have it if you haven’t tried that).

I haven’t worked with Eclipse using Java before, you may have to set a property of the resource to be included with the package if such a property exists (I know you have to do this same type of thing with Visual Studio and ASP.NET applications).

Let us know if you find a solution for this when working with Eclipse.

By: Darwin

Darwin — Mon, 29 Jun 2009 12:36:07 +0000

I’m getting an error with the music. I’ve provided my own midi but I’m not sure where to put it so that it gets compiled into the COD file. Commenting out the music calls I’m getting a null pointer exception. Loading screen works fine but I think I’m having issues with the resources loading correctly. I’ve tried dumping them in every possible path with no luck. Any suggestions? Using JDE 4.3 and the latest Eclipse plugin so it should work out just fine.

Any help would be tremendous. Thanks!

By: Kaneda

Kaneda — Fri, 20 Feb 2009 14:09:41 +0000

Nice tutorial.

Great Job!!

By: Toni

Toni — Wed, 28 Jan 2009 20:54:30 +0000

Thanks for the kudos, I’m glad people enjoyed the tutorial! I post links to where the music and some graphics can be found on part 3 http://www.toniwestbrook.com/archives/72