Infocom PRISM Project Facility Codewheel

Latest news

28th June 2010
I've received an update to the script from 'j5mc', which mainly addresses my sloppy grammar (British people might prefer the spelling 'gray' to my American 'grey'). The download link appears further down this page.

3rd May 2010
I've 'HTML-ised' the codewheel stuff, and you can try it if you like. Please don't try to defeat the security, cos' there isn't any [grin]. Brief instructions: type in the colour and number that the game prompts you with, and answer a simple arithmetical challenge. E.g. if it says '6 * 5 = ?' then work out what 6 times 5 is, and type the answer in the box. Then, either press Enter or click the 'Run the decoder' button.

2nd May 2010
I'm rather tired, so I'll make this document short. This is a codewheel decoder for the Infocom game 'A Mind Forever Voyaging'. This is an excellent game and of course, I'd urge you to go out and buy it immediately - if it was available anywhere. Sadly, Activision don't seem to care about old Infocom games any more, so that leaves Infocom followers in the lurch. (28th June 2010: Luckily for me, I'm currently at a very early stage in AMFV because I am stuck in Moonmist and I won't start another game until I finish that one!)

Fortunately, there are a lot of Abandonware sites out there, and many Interactive Fiction enthusiasts who have put up some excellent sites with game information (see 'Links').

Here it is, then. Oh, I forgot to say what it is.. sigh.. it's a simple bash shell script that prompts you for a colour and a number, then outputs a result. The Infocom codewheel says this:

Item #603475 Valid March 15-31, 2031

PRISM PROJECT FACILITY
Class One Security Mode Access Decoder

Instructions for use:
a) Turn to the indicated color.
b) Locate the indicated number on the inner wheel.
c) Read the corresponding number on the outer wheel.
d) Use this number to gain access to any PRISM Project Class One Security mode.

FOR AUTHORISED USE ONLY
Protect PRISM project security.
Do not leave this decoder in an unsecured area.

Links

infocom.elsewhere.org: The Infocom Gallery: excellent colour scans of Infocom boxes and documents.
infodoc.plover.net: manuals, hints, maps and more.

Downloads

Updated amfv.sh script (thanks, j5mc!)
(MD5SUM: 1c9254d6bca44300c9b9f041408996a7)

prism_codewheel.sh (old script)
(MD5SUM: a568a2d1066708e1033762b19d6de3ff)

Diffs between the old 'prism_codewheel.sh' and 'amfv.sh' script.
(MD5SUM: e7f314987b0e370e6b08c1073477e12d)

Sample run (old script):

Script started on Sun 02 May 2010 07:06:54 UTC
lex@desree:amfvcodewheel$ ./prism_codewheel.sh 
Enter colour code (e.g. DARK GREEN) - 'L' to list, 'Q' to quit: l
Available colours:
dark green
blue
pink
orange
purple
tan
aqua
light blue
light green
light grey
yellow
black
dark grey
brown
red
white
Enter colour code (e.g. DARK GREEN) - 'L' to list, 'Q' to quit: yellow
Enter number (e.g. 37): 89
=> 70
Enter colour code (e.g. DARK GREEN) - 'L' to list, 'Q' to quit: red
Enter number (e.g. 37): 58
=> 23
Enter colour code (e.g. DARK GREEN) - 'L' to list, 'Q' to quit: orange
Enter number (e.g. 37): 91
=> 48
Enter colour code (e.g. DARK GREEN) - 'L' to list, 'Q' to quit: beige
Enter number (e.g. 37): 00
Sorry, I couldn't find that colour.
Enter colour code (e.g. DARK GREEN) - 'L' to list, 'Q' to quit: maroon
Enter number (e.g. 37): 21
Sorry, I couldn't find that colour.
Enter colour code (e.g. DARK GREEN) - 'L' to list, 'Q' to quit: aqua
Enter number (e.g. 37): 821721
Sorry, I couldn't find that code.
Enter colour code (e.g. DARK GREEN) - 'L' to list, 'Q' to quit: l
Available colours:
dark green
blue
pink
orange
purple
tan
aqua
light blue
light green
light grey
yellow
black
dark grey
brown
red
white
Enter colour code (e.g. DARK GREEN) - 'L' to list, 'Q' to quit: tan
Enter number (e.g. 37): 28
=> 47
Enter colour code (e.g. DARK GREEN) - 'L' to list, 'Q' to quit: q
lex@desree:amfvcodewheel$ date
Sun May  2 07:08:35 UTC 2010

Script done on Sun 02 May 2010 07:08:36 UTC
Here's another sample text file, where I play the game via telnet, suspend it to look up a code, and then resume the game (spoiler warning: the transcript contains sections of the game that reveal things that you might not want to see, yet).

P.S. Bah! I wish I'd noticed this before: the numbers are the same for each row - they just shift left a couple of places. I didn't see it - too tired - can't think straight. Ah well.


Back to the projects page
The site index page