new zx81 game: Dog Walk

[Crayon21]

This is NOT for the CGC. this is for others to improve if they wish

I still can't get the scoring to work so your score on completion (correct path) is 4 4 and whatever your previous score was. each square is one point so keep a pad handy

Enjoy.

I'm proud of this little disaster so be thorough with your criticism but not hurtful

edit: I fixed it up a bit, should work fine now

one final thing: I tested it on a ts1500, not sure if it will work on a zx81 but i may make a version for zx80

[XavSnap]

DogWalk.jpg (25 KiB) Viewed 2540 times

Use this : (instead of INPUT A$, to wait a key stroke)

*-*
GOSUB 9000
*-*
GOSUB 9000
*-*

9000 FOR A=0 TO 400
9010 IF INKEY$="" THEN NEXT A
9020 RETURN

Don't use complex words IF A$="WANACLEANTHESCREEN" THEN...
Just use one character (or 3), and set the PRINT available character in the reversed character.



10 PRINT "<C>LEAN"
12 INPUT A$
13 IF A$="" THEN GOTO 12
20 IF A$(1)="C" THEN GOTO 100
30 GOTO 10
...
100 REM HELLO

10 PRINT "<CLE>AN"
12 INPUT A$
15 IF LEN A$<3 THEN GOTO 12
25 IF A$(3)="CLE" THEN GOTO 100
30 GOTO 10
...
100 REM HELLO

Line 45 .... OMG, WTF !!! RTFM !!! (*)

VOTE: "(E) O How want a 16k adventure game ?"

[EDIT]
(1) In French:
OMG: Oh, mon Dieu!
WTF: Qu'es que c'est que ce bordel ?
RTFM: Lis ce putain de manuel !
[EDIT]

[Crayon21]

try it again

[XavSnap]

DogWalk2.jpg (33.72 KiB) Viewed 2491 times

Thanks Crayon for this update !

But, something's stay wrong on this code.

Have a look to the Zx81 manual, not the Zx80 manual !


note: Use SCROLL to avoid to fill the screen and using CONT.

[Crayon21]

I have read the zx81 manual. no luck

instead of sarcasm, help me

[XavSnap]

Hi Crayon,
The corrected version is ready...

WALKINGDOG.P

(4.07 KiB) Downloaded 145 times

Have fun.

XavSnap.

[Crayon21]

how did you do this?

[mrtinb]

It seems line 1 is a small machine code routine, that scrolls horizontally, which is called in line 60. The rest of the program is simple Basic you can study by reading it line by line and compare it with the ZX81 manual https://perfectlynormalsite.com/downloa ... amming.pdf .

Studying other peoples code, is the best way to learn. Even though I've programmed for 35 years, I still learn by looking at other peoples code.

[XavSnap]

how did you do this?

Just a lucky strike ...

[XavSnap]

Hi,

"PeePoo" , The walking dog ...
Is now updated for more funniest targets.

WALKINGDOG.P

(4.68 KiB) Downloaded 125 times

Note to Crayon21:
B: Shooter : Done.
C: Something Funny : Done.



Note:
You can add many "tags" item in the display process, clouds, house, gates ...
But, all "If" lines will speed downs the ZxBasic...
The GOTO xxx+yyy method had to put a GOTO at each item, and GOSUB a RETURN... and fill the memory...

Just use both method GOSUB/IF to avoid to read all of yours V conditions...

Code: Select all

(...)
85 GOSUB 6000+10*INT(V/5)
(...)

6000 IF V=0 THEN PRINT AT 
6001 IF V=1 THEN PRINT AT 
6002 IF V=2 THEN PRINT AT 
6003 IF V=3 THEN PRINT AT 
6004 IF V=4 THEN PRINT AT 
6005 RETURN

6010 IF V=5 THEN PRINT AT 
6011 IF V=6 THEN PRINT AT 
6012 IF V=7 THEN PRINT AT 
6013 IF V=8 THEN PRINT AT
6014 IF V=9 THEN PRINT AT
6015 RETURN

6020 IF V=10 THEN PRINT AT 
6021 IF V=11 THEN PRINT AT 
6022 IF V=12 THEN PRINT AT 
6023 IF V=13 THEN PRINT AT 
6024 IF V=14 THEN PRINT AT 
6025 RETURN

Keep in mind :
- On an item, you had to use the reversed "H" character on the line 8, if the item is higher than the line 7.
It's used to test the foreground mask before the man... One or several "H" (the man item!)
- The "PEE" switch is the reversed "H" character... too, on the line #13.
- The "POO" switch is the grey/black character on the line #20.

Gate example (reversed "H" at the top! , Unpee_able and Unpoo_able... you had to add almost one "H" at the gate bottom to be pee_able...it's not french too...):

...Or keep this line clean... the "X" will be displayed with the first background purpose.

Have fun.