New ZX81 Games

General games-related topics
dr beep
Posts: 2060
Joined: Thu Jun 16, 2011 8:35 am
Location: Boxmeer

Re: New ZX81 Games

Post by dr beep »

I noticed an error in the movement of the dogcatcher.

Altered is better, but I need some more.

New version will follow later.
dadecoza
Posts: 5
Joined: Mon Sep 06, 2021 10:08 am

Re: New ZX81 Games

Post by dadecoza »

Name of Software: robotfindskitten
Author: Leonard Richardson (original 1997 DOS version), Johannes le Roux (this ZX81 port)
Release Date: 06 September 2021
Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 16K
Description: In this game, you are robot. Your job is to find kitten. This task is complicated by the existance of various things which are not kitten.
Download link (if available for download): https://github.com/dadecoza/robotfindskitten-zx81
Commercial / Public Domain / Freeware / Other - please specify? Public Domain

Image

Image

https://www.youtube.com/watch?v=EXV78ietntM

This was a quick weekend project to familiarise myself with Z88DK.
Attachments
robot.P
(12.23 KiB) Downloaded 173 times
dr beep
Posts: 2060
Joined: Thu Jun 16, 2011 8:35 am
Location: Boxmeer

New ZX81 Games : APPLEPIE

Post by dr beep »

Name of Software: APPLEPIE
Author: Johan "Dr Beep" Koelman
Release Date: 18/09/2021
Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K hires

Description:
Bake pies and clean up eaten apples



APPLEPIE

Ever since I started coding 1K hires games I wanted to make something like APPLEJAM
from the ZX Spectrum as a 1K hires game.

Although the gameplay is a bit different I think I made a game that is worth as
a simplified version of APPLEJAM on the ZX Spectrum.

The displayroutine from MAKE-A-SHIT allows 2 characters beside the bas character on a line.
This is what I need for this game as well. Due to the amount of memory needed the screen
itself became smaller, but the same base is used.

The gameplay:
You are a baker and you need to bake applepies.
Apples are all over the place and each displayed apple is enough for a pie.
You can carry apples for 5 pies. When you try to carry more it is game over.
It is also game over when the rat bites you or the rat has eaten on 5 apples.
Finally it is game over when you bake a pie with an apple that is eaten by the rat.

An eaten apple is shown inverted. To prevent 5 apples eaten by the rat you need to bin the
eaten apples. The bin is on the left uppercorner. In the right uppercorner the oven is shown.
You dump apples in the bin or in the oven by moving up when under the bin or oven.

Each binned apple (also good apples) will give you 1 point. Apples in the oven will give you
10 points.

Controls:
Q = up
A = down
O = left
P = right
NL = start

Commercial / Public Domain / Free ware / Other - please specify? Freeware

Downloadlink:
apple3.p
(946 Bytes) Downloaded 253 times
Last edited by dr beep on Sun Sep 19, 2021 9:09 am, edited 4 times in total.
Its1982again
Posts: 78
Joined: Tue Aug 04, 2020 6:26 pm

Re: New ZX81 Games

Post by Its1982again »

Hi Johan, I can't seem to get this to work on my real zx81. Any ideas as all your other 1k hires games work okay? And yes, I am having a weekend of all things ZX81 and Speccy related in honour ofnthe great Sir Clive.
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: New ZX81 Games

Post by dr beep »

Its1982again wrote: Sat Sep 18, 2021 9:52 pm Hi Johan, I can't seem to get this to work on my real zx81. Any ideas as all your other 1k hires games work okay? And yes, I am having a weekend of all things ZX81 and Speccy related in honour ofnthe great Sir Clive.
Not even start screen?
Yes, I altered a base setup due to not enough memory, but I won a few bytes so I can make it as it was.
dr beep
Posts: 2060
Joined: Thu Jun 16, 2011 8:35 am
Location: Boxmeer

Re: New ZX81 Games

Post by dr beep »

Its1982again wrote: Sat Sep 18, 2021 9:52 pm Hi Johan, I can't seem to get this to work on my real zx81. Any ideas as all your other 1k hires games work okay? And yes, I am having a weekend of all things ZX81 and Speccy related in honour ofnthe great Sir Clive.
Altered version added.
Its1982again
Posts: 78
Joined: Tue Aug 04, 2020 6:26 pm

Re: New ZX81 Games

Post by Its1982again »

Still no joy even with the apple2.p file. Anyone else having this issue on real hardware? Thing is, Johan's 1k Qfrogger is the best version since the world of ZX81 frogger clones began so I gotta try every game he does!
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: New ZX81 Games

Post by dr beep »

Its1982again wrote: Sat Sep 18, 2021 10:41 pm Still no joy even with the apple2.p file. Anyone else having this issue on real hardware? Thing is, Johan's 1k Qfrogger is the best version since the world of ZX81 frogger clones began so I gotta try every game he does!
Cause could be the timing of the intrupt.
I delayed the intrupt a bit more.
Hope this will do.
User avatar
Dim_75
Posts: 80
Joined: Fri Sep 01, 2017 11:04 pm
Location: Paris, FR

Re: New ZX81 Games

Post by Dim_75 »

Ok, with the third version, i am able to run it on EO
(Could not make first version to work on EO, whatever the configuration)
Its1982again
Posts: 78
Joined: Tue Aug 04, 2020 6:26 pm

Re: New ZX81 Games

Post by Its1982again »

Working and a great little game. The screen is actually larger than I expected too. Thanks again to our resident 1K genius Dr Beep!
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
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