Search found 64 matches

by Bukster
Sun May 31, 2020 12:04 am
Forum: GAMES
Topic: Random maze generation game
Replies: 4
Views: 726

Re: Random maze generation game

To answer some questions: It's written in flat assembler, so machine code with a basic front end. The Basic actually gives you the maze generation routine and the address of the maze data, so it you want to use it for something, you've got what you need. It runs find on Eightyone emulator set to 16k...
by Bukster
Sat May 30, 2020 2:40 am
Forum: GAMES
Topic: Random maze generation game
Replies: 4
Views: 726

Random maze generation game

I thought it would be interesting to try and write a machine code version of an algorithm I read years ago in a book of ZX81 basic programs. I've managed to get it going and I think the results look quite good so I've made a micro game around it. This program has the title screen in Basic. You can s...
by Bukster
Sun May 24, 2020 2:11 am
Forum: GAMES
Topic: Moon Patrol
Replies: 31
Views: 10122

Re: Moon Patrol

Looks really good but clearly unfinished. Perhaps you should release the source code and let someone else finish it if you don't want to take this any further.
by Bukster
Sun May 03, 2020 7:56 am
Forum: Development
Topic: Scrolling up one pixel
Replies: 2
Views: 707

Scrolling up one pixel

When I was writing my giant letters utility, I had thought to make each letter scroll up not one line, but one half line - a ZX81 pixel. The routine I wrote was too slow to be of much use, but here is is in case anybody might like to make use of it. It doesn't clear the bottom line as the routine to...
by Bukster
Sun Apr 26, 2020 8:14 am
Forum: Software
Topic: Giant Letters utility
Replies: 2
Views: 923

Giant Letters utility

Here's a handy utility to display giant letters on the screen. Input a string and see it turn into giant scrolling letters. This could be good for a display for a computer expo etc. It will support colour if you have a Chroma interface but works fine with a 16k ram pack only. Giant letters1.jpg Gian...
by Bukster
Sun Apr 05, 2020 3:02 am
Forum: GAMES
Topic: TRACTOR BEAM UDG
Replies: 5
Views: 1412

Re: TRACTOR BEAM UDG

No joy with the Eightyone emulator, it just crashes or uses normal graphics.

Wouldn't it be better if the I register was normal for the title screen then switched to whatever the new value should be for the game? The score and bonus messages wouldn't work however.
by Bukster
Sat Apr 04, 2020 10:10 pm
Forum: GAMES
Topic: Tractor Beam - Galaga style game
Replies: 10
Views: 1699

Re: Tractor Beam - Galaga style game

That is really cool!!! Can you tell something about the Making-Process?? Greetings Jens Made using Flat Assembler. It's entirely in machine code and even leaves about 1kb spare so memory efficient. As you can probably guess, the aliens are following preset movement tables. Every alien has a home po...
by Bukster
Sat Apr 04, 2020 10:02 pm
Forum: GAMES
Topic: Tractor Beam - Galaga style game
Replies: 10
Views: 1699

Re: Tractor Beam - Galaga style game

Moggy wrote:
Sat Apr 04, 2020 12:20 pm
Very nice. :geek:

I will make an attempt at a UDG version if you have no objections Bukster?
No objection. I take it UDG requires a modified ram pack and as I don't have one UDG wouldn't work on my hardware. As the aliens are all single letters, it might translate quite well into UDG
by Bukster
Sat Apr 04, 2020 6:28 am
Forum: GAMES
Topic: Tractor Beam - Galaga style game
Replies: 10
Views: 1699

Tractor Beam - Galaga style game

Here's my latest game - Tractor Beam. Inspired by the 1981 game Galaga, this game features most of the features found in the arcade game. The aliens can capture one of your fighters using their tractor beam. Shoot the alien that got your fighter when it's attacking, get it back and join two fighters...
by Bukster
Sat Dec 14, 2019 4:39 am
Forum: GAMES
Topic: Masada Class reissued with 100% machine code
Replies: 3
Views: 1855

Masada Class reissued with 100% machine code

I decompiled my old 1994 game Masada Class and have replaced all the basic routines with machine code. So things like the "one letter appears at a time" style of message writing that I may have thought looked cool back then is now running a lot faster in machine code. I've also updated the special e...