Subject: Re: [stella] parallel efforts / Invaders From: Erik Mooney <emooney@xxxxxxxxxxxxxxxx> Date: Fri, 16 Mar 2001 02:33:20 -0500 |
On Wed, 14 Mar 2001 21:49:04 -0800, you wrote: >At 04:44 PM 3/14/2001 -0500, you wrote: >>That's exactly my problem. Doing a seemingly-impossible kernel is fun, >>especially when it's something even an NES couldn't do. Writing joystick >>code, missile movement, collision detection, score display is boring and >>why I never finished either version of INV. > >I for one was really disappointed that INV was abandoned. In the waning >days there was talk of how to deviate from the formal Space Invaders play >pattern, like coming up with innovative 2-player competitive options. > >It could have turned into something more than just a straight port. And that's where I lost interest. Instead of being an exploration to see what I could do on the 2600, I had to choose to either try to make it a perfect port, or to make it its own game with different options. Either would have entailed a lot of playtesting, criticism, and revising - like Qb is still going through - and I really didn't (and still don't) have the heart. Congratulations to all here who have pushed a game through those steps; I wish I had the fortitude to do it. >And I rather liked the idea of playfield being used like sprites. I >remember pushing you to do the color changes and the "shapes" using the two >horizontal blocks of resolution you had available for each invader. I >thought the look was quite acceptable, really, and very unique for a 2600 game. > >It certainly appears as if the list has gotten about as active if not >moreso now than it was in the heyday of 97. Maybe someone would be willing >to either finish off INV... or finish off your sentence? >>I thought I actually had the pixel shifting solved, or at least reasonably >>minimized. Also, it's only a one pixel shift, and it happens because >>there are nine pixels between successive RESPx hits, but only 8 pixels > >Is there a way to fix the timing by using illegal opcodes or the "sta.w" >addressing mode trick? I suppose the problem is not enough time rather >than not wasting enough time... That's how I thought, although Eckhard says there's time.. - Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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