Subject: Re: [stella] How did they do Centipede? From: Manuel Polik <cybergoth@xxxxxxxx> Date: Mon, 09 Apr 2001 08:31:58 +0200 |
> Dennis Debro schrieb: > I saw an interesting question on the Atari2600 Nexus site. How did > they do Centipede with 128 bytes of RAM? They kept track of where the > mushrooms were, the score, level, number or lives, etc. I'm a novice > at programming Stella but it doesn't seem possible. Could someone > shed some light on this? They seem to use PF1 & PF2 only. If I counted that right, it's 18 lines, so they use 4*18=72 Bytes for tose blocks. That leaves 56 Bytes for all the other stuff. Take some bytes for score, level & lives & some diverse counters, they could still store some 20 sets of X/Y coordinates. They're cheating on some things here, for example they're not buffering how often all the blocks have been hit, they're only tracking the current block you shoot at. Greetings, Manuel - Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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