

RACE TRACK
by Jerome K Laskowski
from Sinclair Programs, October 1984


RACE TRACK is a simulation of motor racing. Originally a pencil and
paper game it has been adapted for the 16K ZX-81 by Jerome K Laskowski
of London SE6.

You play against te computer, which always moves first, and you can
choose to play up to five laps. Three basic rules govern the movement
of cars, and these must be followed to prevent crashing or losing the
game.

1. No two cars may occupy the same point at the same time.

2. The point to which you wish to move and the line which connects
your current position to your anticipated position must lie within the
track borders.

3. The length of your move must be one more than, one less than or the
same as the previous move for both horizontal and vertical moves.

The moves should be entered as follows: to move three squares right
and one up you would input "31" and to move two squares right and one
down you would input "2-1". Invalid moves will be ignored by the
computer and should an input mean a possible crash you will be given a
warning. If you persist and enter the move you will lose the race and
fifty points will be deducted. If at any time you need advice on the
best move to make, input "H".

Your car is the inverse X and the computer drives the inverse 0.
Points are awarded once both cars cross the finish line, and are based
on the winning margin. If your score exceeds the world record, set at
fifty points, you can change it at line 2 of the program. Alter the 1
in line 3390 to give more crash warnings if necessary.


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