Subject: Re: [stella] Have kernel, need game! From: "Fabrizio Zavagli" <rasty@xxxxxxxxx> Date: Sat, 21 Jun 2003 17:10:07 +0200 |
Hi Thomas! you wrote: > Then I "somehow" had to combine the two segments. This was a problem, > because simple ORing or ANDing didn't work. It took a while until > it finally "clicked". This is the basic kernel code: > > lda (seg0),y > and (seg1),y > eor eorVal ; !!! > sta PFx > > So the whole trick is EORing the result when necessary! :-) > > I am quite happy with this solution, but before I continue working on > it, I would like to ask for comments. Maybe anybody knows an even better > (faster, compact) solution. I also got to use exclusive or in a similar occasion for an application I wrote some time ago (a Palm 3d engine where I had to overlap precalculated segments for the polygons' edges), and such solution was actally suggested to me by a friend who has a lot more experience than I do on such stuff.. So I guess thar EORing is pretty standard in this case, and you can feel confidet it's a strong solution! :) (now that I've said that, I'm sure several hundred better solutions will pop up shortly.. ;) > Finally I will need some game IDEAs. Here are mine: > - a paddle game, with a really fast scrolling cave, where you have to > avoid crashing into the walls and occasionally or evade shoot some > enemy objects > - a game like this helicopter Jave applet where you only have to press a > button to control the height The helicopter/cave game came to my mind just as soon as I tried the binary! The paddle gama idea also looks good to me, so you may even think of a game that implements both ideas, maybe on alternate levels.. But if you want to keep the game simple and choose only one game style, the latter I prefer! Looking forward to see what comes out of it..! Regards, Fabrizio.- ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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