Spectrum Computing

Maybe start from this link. It's not directly Zx Spectrum related but tells quite a lot abouth algorithms. Reading it requires some effort though: http://www.extentofthejam.com/pseudo/ http://www.extentofthejam.com/pseudo/images/curves1.png This is sort of how it was done for Gameboy road rash. Tha...

Excellent work but unless you've got dot crawl, it doesn't count

Non-interesting fact No.1 I wrote my first game on the Spectrum simply as an effort to get enough money for a BBC Micro and a copy of Planetoid (although it was originally called Defender until renamed for fear of copyright issues) https://www.youtube.com/watch?v=9f5Hzm7B4xU&t=5s My ploy worked ...

The Games, Summer Edition?

https://spectrumcomputing.co.uk/index.p ... 96&id=1968

Seven.FFF wrote: ↑Wed May 30, 2018 3:42 pm
I'll mention you in the credits for inventing the name, how about that?

Oh no need for that at all! We both tried to copy Robotron except you're doing a good job of it

I think it's more like great minds thing alike on the naming front !

Here's a little teaser of the Spectrum Next game I'm working on. https://seven-fff.com/spectron/ Oi! I claim Copyright on that title! https://www.youtube.com/watch?v=b2WWjoqRV6g Having said that, I have no rights and whilst my game was s&^t (although it was 35 years ago), yours is obviously exc...

The above is all relevant and correct but it was especially useful in Sinclair Basic on the unexpanded ZX81.

With only 1K for screen and program, every byte was even more important than on the Spectrum.

It may have been that it became habit and as mentioned, if you can save bytes then why not?

Just back from holiday... No it's not in a magazine but I was the coder of the C64 version as all the 8 bit versions were done by us. When we started the conversions it was called Sphericule Backed up here though https://www.exotica.org.uk/wiki/Sphericule https://en.wikipedia.org/wiki/E-Motion In a...

Originally called Sphericule till USGold made a deal with Accolade and they decided that the Americans wouldn't like the name Didn’t know that, or I'd forgotten if I did, is that in a magazine somewhere? Perhaps it could be added as a comment in ZXDB. In this case I prefer E-Motion, a rare case whe...

druellan wrote: ↑Thu May 03, 2018 11:52 am 15. E-Motion

Originally called Sphericule till USGold made a deal with Accolade and they decided that the Americans wouldn't like the name

Joefish wrote: ↑Tue May 15, 2018 1:34 pm Knight Lore doesn't even use the remaining colour in the backdrops. But it's sprites won't take up any more memory than the Spectrum ones.

I'll bet it unpacks the required ones to 4 colour mode when switching screens though!

You might also notice a similarity with the BBC micro. Could be because they both used the Motorola 6845 video generator.

& CGA in the PC for that matter

As already mentioned, there is no definitive answer. Being pedantic I'd like to leave the double buffering term for the 128k ability to swap memory whereas I'd always call the term of writing off screen then copying to the visible screen as back buffering. But that's a moot point. Most solid 3d stuf...

Ast A. Moore wrote: ↑Tue Mar 27, 2018 12:01 pm

Ralf wrote: ↑Tue Mar 27, 2018 11:54 am Spectrum is more advanced construction. It has specialised chip called ULA which deals with display and leaves CPU free.

The ZX81 also had a ULA.

Yes but it had nothing to do with the display

You might want to take a look at this:- http://members.aon.at/~ehesch1/wl/wl.htm "WILDERLAND (WL) allows you to see what's REALLY going on in this wonderful world created by Veronika Megler and Philip Mitchell in 1982 at Melbourne House. It runs the original game code in a rudimentary Spectrum ...