Search found 37 matches

by dasteph
Fri Jul 21, 2017 9:25 am
Forum: Development
Topic: ZXpand / Atari ST mouse driver
Replies: 35
Views: 8860

Re: ZXpand / Atari ST mouse driver

A bit late to the party on mentioning this here, but as Sir Morris mentioned there is a DIY USB mouse interface addon for the ZXpand and ZXpand+ Details here: https://zx81keyboardadventure.blogspot.com.au/2017/04/usb-mouse-for-zx81-and-zxpand-part-1.html https://zx81keyboardadventure.blogspot.com.au...
by dasteph
Fri May 05, 2017 11:21 am
Forum: Development
Topic: Lode Runner on the ZX81?
Replies: 54
Views: 4394

Re: Lode Runner on the ZX81?

Yes, the half stone is in keeping with better visual versions of the game. A full block would start to look a little strange, particularly when full unbreakable stones are on the bottom row.
by dasteph
Thu May 04, 2017 11:36 pm
Forum: Development
Topic: Lode Runner on the ZX81?
Replies: 54
Views: 4394

Re: Lode Runner on the ZX81?

The levels technically have one extra layer at the bottom, which is always a Block like character. So there is no need to store that with the level data. Good to keep in mind however. To get the Scores and last layer in the screen needs to shift up by 1 block. I've mocked up the first level with all...
by dasteph
Thu May 04, 2017 10:48 pm
Forum: Development
Topic: Lode Runner on the ZX81?
Replies: 54
Views: 4394

Re: Lode Runner on the ZX81?

Legend has it that Doug Smith wrote the level designer and got the kids in his neighbourhood to work on extra level. If true I'd bet it's one of the kids initials.
by dasteph
Thu May 04, 2017 9:49 pm
Forum: Development
Topic: Lode Runner on the ZX81?
Replies: 54
Views: 4394

Re: Lode Runner on the ZX81?

dr beep wrote:
Thu May 04, 2017 2:48 pm
Are the original levels somewhere available in ASCII-format??
Indeed they are, the Apple ][e levels are in a java version of the games on github: https://github.com/SimonHung/LodeRunner.
by dasteph
Thu May 04, 2017 2:03 pm
Forum: Development
Topic: Lode Runner on the ZX81?
Replies: 54
Views: 4394

Re: Lode Runner on the ZX81?

Very nice, a saving of aprox 20 bytes on the scheme I had in mind originally. Or to put it a better way, room for an extra level in every 4 over the original.
by dasteph
Thu May 04, 2017 1:08 pm
Forum: Development
Topic: Lode Runner on the ZX81?
Replies: 54
Views: 4394

Re: Lode Runner on the ZX81?

Agree that we can get some nice effects without going to Hires. See 2 files in the tar of the lode runner running across the screen. One version is a Hires test graphic, and the other a quick and dirty test of something similar in standard ZX81 charaters. http://dasteph.com/cgi/zx81/files/tmp/runner...
by dasteph
Thu May 04, 2017 12:16 pm
Forum: Development
Topic: Lode Runner on the ZX81?
Replies: 54
Views: 4394

Re: Lode Runner on the ZX81?

To print 109 to the screen without getting "?", you need to poke it to the Dfile.

05 rem print to the first character space on the screen
10 poke peek 16396+peek 16396*256+1,109
20 print peek (peek 16396+peek 16396*256+1)

The idea would be to poke the entire active level to the Dfile.
by dasteph
Thu May 04, 2017 3:30 am
Forum: Development
Topic: Lode Runner on the ZX81?
Replies: 54
Views: 4394

Re: Lode Runner on the ZX81?

Wow Dr Beep, you're getting some serious compression going there. I think 32 levels might prove to be a comfortable target. It's a nice number and equals the total available on the Vic20. My thoughts on level design graphics wise are: If that's chr 8 then that's good for standard bricks. This means ...
by dasteph
Mon May 01, 2017 11:12 pm
Forum: Development
Topic: Lode Runner on the ZX81?
Replies: 54
Views: 4394

Re: Lode Runner on the ZX81?

The level compression really is one of the major keys to Lode Runner, being an entirely level driven game. Not cramming in enough was one of my concerns. I'd figured I'd need to make a least 10 levels available to make the game enjoyable and playable. So, not going out on a limb here to say that the...