Write_Your_Own_Program_Graphics_Hangman.pdf

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FIrst
published in
Great BritaIn
In J
984
by
'Franklin
Watts
12a
Golden Square
London WI
First
published In"the
United
States
In J
984
by
Gloucester Press
Copynght
©
Aladdin Books Ltd
1984
Printed
In
Belgium
ISBN
0-531
-0348~6
Library
of Congress
Catalog
Card Number
84-81108
WRITE YOUR OWN
PROGRAM_-
ANGMAN
Mike Duck
~~Oy~~~~6~oRNPTRoESS
9 8 4 - - - - -
·1
One
of the
most
exciting
things
about computers
is the
ics
effects
they
can
display
on
your TV screen. Most
ready-bought
games
programs
allow
you to control what's
happening on the screen, whether It's movmg a
spaceshIp
to
aVOId ailen
attack
or steermg a
racing
car around a
dangerous Grand Prix track The
programs
that produce
these effects are very
complicated,
but
you can
use
sImple
graphics commands
to
create
an mteresting
and satisfying
computer
game
of
your
own
The
program given
m this book builds
up
the Hangman
game.
In thIS
game,
the
computer chooses a
mystery
word
and
asks
the
player to
guess
what It IS, letter
by
letter. You
have only ten guesses,
and
for each wrong
guess
the
computer builds
up
a section of
the Hangman
graphics.
The
program
is
broken
down mto
a
number of logical
stages,
so
that you can clearly understand what each
sectIon
does. Givmg
programs
a
logIcal
step-by-step structure
not
only
makes them easier to
write,
it
also
helps
other people
to
see
how they work when they come to use them at
a
later date,
The
first
sectIon of the book deals with
the mam program
which
controls
how the
game
works. A
second section
explams
the graphics that w1l1 make up the
screen
display
Contents
Introducing Graphics
Color
Better programming
8
9
10
1 THE MAIN PROGRAM
APPLE IIe
COMMODORE 64
2
THE GRAPHICS
APPLE IIe
COMMODORE 64
Program listing
Glossary
Index
11
12
19
27
28
34
40
42
44

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