spectrum graphics - OpenLibra

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ZX81STRATEGY
Robin Thompson takes the tedium out
of the game with this ZX81 version for
2-4 players.
On RUNing, the program wiil ask
how many people are to play,
and will request their names.
There will then be a brief pause
while the board is set up and
displayed. Instructions will be
printed, and the game will com
mence, ending when all the letters
have been used and no-one
can continue.
Please note that the program
has no facilities for correcting a
mistake in the players' input, so
care must be taken when typing
in words.
Typing the program in should
present no problems, other than
the graphics characters, and
these are listed in figure 1 .
variables
The main variables used by the
program are as follows;
8$ - holds the board.
C$ holds the letters to be
distributed amongst the payers
E$ -holds the players' letters.
X$ holds the players' names.
X-holds the players' scores.
SI the start of the diaplay file.
P-the number of players.
Figure 1 Scrabble board graphics \
Line 8430 i 1
Line 8435
Line 7 7 eight graphic S Line 8445 i inverse T
Line 75 inverse 'space' Line 8450 \
Line 7000 inverse T Line 8460
Line 7010 inverse 'D' Line 8465 1
Line 8395 inverse 'space' Line 84 70 > inverse D
Line 8400 inverse 'space' Line 84 75 \
Line by Line
1 to 85 initialisation of variables and instructions.
86 to 1 70 print the scores, who is next to play, their letters.
and inputting coordinates for letters on
the board.
171 to 1 30 work out the coordinates of letters to go on
the board.
311 to 31 8 bonus score of 50 points when a player uses
all seven letters in one go.
319 to 502 check for double or triple word score, print out
score, and prepare for next player's turn.
Subroutines
3000 checks to see if your letters are next to any
others on the board, and adds the necessary
score.
3800 POKEs your letter onto the screen.
4000 allocates new letters, and prints them on
screen.
5000 Endgame routine. Works out who scored
most, and prints out scores.
6000 initialises the array that is to hold the players'
letters.
7000 works out if player gets double or triple wordscore.
8000 initialises the array that holds the board.
9000 asks how many players there are, asks their
names, and DIMs arrays to hold their scores,
names and letters.
9500 prints out the board.
9900 routines used when all the letters have been
used. Play continues until no-one can go.
9998 program SAVEd so that it autoruns.
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106 ZX COMPUTING DECEMBER/JANUARY 1985