by Ian Turtle
from Sinclair User, Dec. 1982, page 61
HAMPSON'S PLANE. for the 16K ZX-81 is derived from an attempt to simulate in
two dimensions as many features of Rubic's Cube as possible. The author of the
listing, I Turtle of Scunthorpe, South Humberside, discovered the basic idea from
an article in an American magazine.
The rules of the game are fairly simple. The screen is covered by 20 lines of
plus signs. The computer. running in FAST. selects one of the symbols at random
and inverts it and its eight immediate neighbours. The process is repeated a
number of times, depending on the skill level.
When the computer has Finished, your job is to convert the screen to normal.
using the same technique, i.e., defining the centre square of a group and ordering
the machine to invert it and its neighbours. The move should be input as "Letter.
number. NEWLINE"
===============================================
Notes for the "Deluxe Edition"
I always thought this was an interesting puzzle game and such a simple algorithm
too! The "Deluxe Edition" replaces the grid of "++++" lines with a picture of your
choosing. Depending on the image chosen the puzzle can be easy to very hard.
During game play you can enter these single character "hot keys"...
"M" - Ends current game and returns to the puzzle selection menu.
"V" - Displays the original puzzle in it's unscrambled form.
"G" - Displays a GRID which may help in entering the coordinates.
"Q" - Quits the game immediately.
Files included in the ZIP...
Hampsons Plane Deluxe.bas The BASIC source code, use this to edit/change the pictures.
Hampsons Plane.asm The MC source code, ARTIC Assembler-2 format.
Hampsons Plane.gif Animated GIF demo.
Hampsons Plane.jpg Mag scan of the original program listing.
Hampsons Plane.p The original program in P format.
Hampsons Plane.txt This file.
HPDeluxe.p Hampson's Plane Deluxe Edition in P format.
ZX81_riched.fon ZX81 font needed to view the BASIC listing.
- Demo
- Hampsons Plane.gif (170.79 KiB) Viewed 4809 times
