ZX Computings - OpenLibra

I
1K Games
10 LET
20 LET
30 LET
4-0 LET
50 LET
60 LET
70 LET
30 LET
LET
AND B)
100 LET
UFO
+ X) - ( INKEV$ = "5" RNO Y.I
110 LET D =D + Z
LET F =F + Z
PRINT RT NOT X,B,"
";RT X-D,Y+Z
160
160
170
80
lao
1 90
200
210
220
230
24-0
This game UFO, written by S
Hassen of Worthing, was written
to show just how much can
be squeezed into 1K without
resorting to machine code. Mr
Hassen tells us he has used
every trick he knows to get the
program into 1K. The object of
the game is to shoot down the
saucer hovering near the top of
the screen. As you probably expect,
the "5" will move you left
while the "8" moves you right.
Press "0" to fire. As you'll see
when you run the program, the
saucer does not sit still, but
moves back and forth, calling
for all your aiming skill. When
struck (by a little full stop which
zaps up to the saucerl it blows
apart, and your score is shown.
The lower the score, the better.
Any score over 7 2 is lousy. Any
score less than 10, I don't
believe you. The game ends
once you've hit the saucer, and
waits until you press any key to
start again. The PAUSE 4E4
(developed by Trevor Toms,
author of THE ZX81 POCKET
BOOK) is remembered by thinking
of it as 'pause forever'. It
obligingly waits, more or less,
forever for you to press a key to
get things underway again. If
you have trouble seeing the full
stop as it slowly zaps towards
the target, replace it with a
graphic A.
X=URL
Q -NOT
0=Q
F=Q
B=X
Y=X
Z=5GN X+SGN X
K = INT (RND+RNO)
B=B+ fK RNO X+X.V -
TINKEY$="
T NOT K
RNO Y