Re: [stella] Rubik Cube 3d

Subject: Re: [stella] Rubik Cube 3d
From: "Eckhard Stolberg" <Eckhard_Stolberg@xxxxxx>
Date: Thu, 26 Dec 2002 21:26:51 +0100
> Yes, there are a lot of HMOVEs. Both, Chris and me are using 
> that in our demos. And I'm sure it was used in the prototype 
> too.

I'm not so sure about the prototype. David Winter says that
the game is cycling the background colour during the title
screen. In his first screenshot the background colour is grey,
and there aren't any HMOVE-blanks visible. If Rubuk's Cube is
shifing any objects during the cube display, it would have to
do it with late HMOVEs which are somewhat unflrexible. It seems
unlikely to me that the programmer would go through this
trouble for a game that has a black background most of the
time anyway.

> BTW: When the display problem will be finally solved (getting 
> closer, see below), the next interesting thing will be the 
> algorithm that automatically solves a puzzle. I have an old 
> book about solving Rubik's Cube and implementing the rules and 
> operations into a 2600 is not an easy task at all.

Back in the day I had a BASIC program for the C64 that would
show you how to solve the Cube after you told it which colours
are on every square. There probably is some simple source code
somewhere on the internet, that you could use for inspiration.

Ciao, Eckhard Stolberg

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