The Ur-Quan Masters Home Page Welcome, Guest. Please login or register.
Did you miss your activation email?
October 04, 2022, 09:23:55 am
Home Help Search Login Register
News: Paul & Fred have reached a settlement with Stardock!

+  The Ur-Quan Masters Discussion Forum
|-+  The Ur-Quan Masters Re-Release
| |-+  General UQM Discussion (Moderator: Death 999)
| | |-+  Just Wondering
« previous next »
Pages: [1] Print
Author Topic: Just Wondering  (Read 1543 times)
Rib Rdb
Frungy champion
**
Offline Offline

Gender: Male
Posts: 85



View Profile WWW
Just Wondering
« on: October 21, 2003, 05:50:03 am »

Some of my friends have recently become interested in programming games for the gameboy advance.  I was wondering how difficult it would be to port UQM to it. I know that there's a mod player available for the music. I'm not sure how the graphics are done. I was mainly just wondering if it's feasible, since I don't have a GBA, and probably don't have time to port it. (Although , playing UQM instead of solitare or paratroopers would be a lot more fun during my classes!)
« Last Edit: October 21, 2003, 05:50:31 am by Rib_Rdb » Logged
Michael Martin
Core Team
*Smell* controller
*****
Offline Offline

Posts: 387



View Profile
Re: Just Wondering
« Reply #1 on: October 21, 2003, 08:40:03 am »

I looked into it back in the 0.2 days.  It's not going to be easy at all.

I've answered this question before (though not here), so I'll just quote that.

The short answer: It's theoretically possible but would require a good deal of work from people who are very good at GBA programming.  We aren't those people, but the code *is* GPLed, so if someone was serious about it, we'd listen to them.
                                                                               
The longer, detailed answer follows.
                                                                               
All the important parts of the game are in C; that means that producing runnable code is easy.  The hard part is changing the backend.  The hardware that Star Control 2 assumes is not the hardware that the GBA has.  This is what would have to be changed:
  • The graphics engine currently assumes a 320x240 screen; the GBA's 240x160 screen will require new graphics and fairly extensive changes to the game logic.  (To be fair, a lot of those changes "should" happen anyway so that if someone were so inclined they could substitute higher-resolution graphics.)
  • The graphics engine knows only of bitmaps, and fakes paletted sprites. A proper GBA port would need to use sprite hardware directly.
  • The graphics themselves are a mix of TrueColor images and 8-bit paletted images.  Everything is converted to TrueColor before display for the PC (the 8-bit graphics remain mostly to allow palette-swapping effects); the GBA version would need to restore 8-bit consistency.  The GBA's tiled-graphics modes are pretty much not an option without totally rewriting much of the game.
  • The execution engine assumes multithreading.  Some sort of taskswitching code would need to be included (or written from scratch if no such code  exists).
  • Code for going out to disk (loading graphics, saving games, etc.) would need to be replaced with code that located the proper resources on the cartridge.


Things that aren't problems include:
  • Music and sound.  MOD players and wave mixers have already been written for the GBA by amateur developers, so the music can be identical to the  PC's version.
  • Input.  The backend would need replacing but this would be a trivial task.
  • Game logic/actual production of the ROM image.
Logged
guesst
Enlightened
*****
Offline Offline

Gender: Male
Posts: 692


Ancient Shofixti Warrior


View Profile WWW
Re: Just Wondering
« Reply #2 on: October 21, 2003, 09:03:55 pm »

Naaa, forget the GBA. Someone just needs to port it to the GP32 instead.
Logged

A new game and it's code each week. Please visit Cymon's Games
Pages: [1] Print 
« previous next »
Jump to:  


Login with username, password and session length

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!