PACMAN 1K

Any discussions related to the creation of new hardware or software for the ZX80 or ZX81
dr beep
Posts: 2060
Joined: Thu Jun 16, 2011 8:35 am
Location: Boxmeer

PACMAN 1K

Post by dr beep »

I think I can make a 1K PACMAN with the original screen.

So far coded:
- compressed screen to load in 1K.
- defining own keycontrols
- decompress screen to full size
- start of game
- reset score
- control of pacman

Still 245 bytes free for
- restart
- ghost move
- score (eating)
- hiscore
- levelup
- bonusitems

K-MAN will be part of the new game tape.
Kman.png
Lardo Boffin
Posts: 2161
Joined: Sat Nov 26, 2016 2:42 am

Re: PACMAN 1K

Post by Lardo Boffin »

Blimey! :o
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Its1982again
Posts: 78
Joined: Tue Aug 04, 2020 6:26 pm

Re: PACMAN 1K

Post by Its1982again »

Still playing 1k frogger and painter so looking forward to this!
dr beep is the Yoda of 1024 bytes.
ZX80 (white psu)
Issue 1 ZX81
32k comp mod ZX81 filesixty keyboard
Issue 1 Spectrum
Issue 2 Specrum
Toastrack
Issue 3 in Lo-Profile keyboard
Harlequin 128
DivMMC future
vdrive
TZXduino
ZX printer
Alphacom printer
dr beep
Posts: 2060
Joined: Thu Jun 16, 2011 8:35 am
Location: Boxmeer

Re: PACMAN 1K

Post by dr beep »

To do:

move ghost, status ghost and dead.
114 bytes left for full sixe Pacman.
dr beep
Posts: 2060
Joined: Thu Jun 16, 2011 8:35 am
Location: Boxmeer

Re: PACMAN 1K

Post by dr beep »

71 bytes left

to do:
status ghost
timer ghost chaseable
capture test
hiscore

I think I need to cut a few pixels from the full screen.
dr beep
Posts: 2060
Joined: Thu Jun 16, 2011 8:35 am
Location: Boxmeer

Re: PACMAN 1K

Post by dr beep »

Yes, I need to take a bit of the screen for the final steps.
dr beep
Posts: 2060
Joined: Thu Jun 16, 2011 8:35 am
Location: Boxmeer

Re: PACMAN 1K

Post by dr beep »

At this moment 2 lines deleted.

Only to do:
point for eating ghost and hiscore

No bonusitems

32 bytes left.
Whitey
Posts: 22
Joined: Sat Jan 21, 2023 10:28 pm

Re: PACMAN 1K

Post by Whitey »

Only just restarting my zx81 programming journey after a 40 year break. Doing all this in 1k blows my mind 🙌
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XavSnap
Posts: 1940
Joined: Sat May 10, 2008 4:23 pm
Location: 'Zx81 France' Fb group.

Re: PACMAN 1K

Post by XavSnap »

:ugeek:

You can use the $403c to $407a memory block ?
Xavier ...on the Facebook groupe : "Zx81 France"(fr)
dr beep
Posts: 2060
Joined: Thu Jun 16, 2011 8:35 am
Location: Boxmeer

Re: PACMAN 1K

Post by dr beep »

XavSnap wrote: Tue Jan 31, 2023 8:33 am :ugeek:

You can use the $403c to $407a memory block ?
yes, printerbuffer is free to use as is most of the systemvariables. I only avoid
dfile, lastk, frames, margin and cdflag
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