Monday, October 1, 2007

Full screen code finished

Today, I finally have the code to display a full tile screen. Granted, this should take about 12 minutes for some of the veterans out there but I literally get 2-3 hours per week to code for myself and it's been 20+ years since I was hard-core 6502. :-)

Even though the demo is called "scroll01.prg", it doesn't scroll yet. That comes next. :-)

I want to thank rengmann over at http://verderben.org for converting some NES Metroid tunes to the C64.

The "demo" runs in NTSC but you PAL folks should be able to run it too. All comments are welcomed. I would be interested in someone running this on real hardware. I have to setup but I am missing a power cord to my 1541 so I will have to wait a bit.

http://metroidclassic.com/metroid_c64/scroll01.prg

~cbmeeks

4 comments:

Anonymous said...

I strongly advise to code for PAL as on a NTSC machine you have much less rasterlines => much less time to scroll the screens.

also strongly avised to _throughoutly_ study the rants here: http://cadaver.homeftp.net/ the scrolling and multiplexer rants are a must to understand outside in and inside out to be able to cope with the challenge metroid presents.

just coming from watching a metroid speedrun. and the game is quite double with one downer: you will not be able to fit all those maps into the c64's memory. one of your primilary goals should be to write a loading system that can strategically load in and swap out maps. (ie. load maps over the most latest used ones, you would need even a way to defragment the map memory for maximum efficiency.. ;)

also for such a huge project you must go with all roms turned off.

good luck, pm me on csdb wherever you have quesions

Oswald

cbmeeks said...

Thanks oswald! Your code has helped me a lot!

The reason I am coding for NTSC is because I live in the US. I realize that most of the remaining C64 users are in Europe. I also realize that with VICE, I can easily code for PAL. But, I want to run my game on my real C64. That is a huge part of the fun for me. An emulator just feels cold.

My friends look at an emulator playing a game and they don't get it. But show them the same game on a real C64 and it sinks in.

I will send you a PM.

Thanks!

Marsha said...

Great work.

Anonymous said...

can you please re-up the demo?
I#m really curious!