Atomic AGD

[tricky]

Did the sprite plotting get optimised?

If you want 50+Hz playback on youtube, the source has to be 720p+, as does the playback.

[kieranhj]

Thanks to Kees awesome work on the Atom 6502 code, I managed to get the first BBC game up & running in just 3x train journeys...

Dodgy Geezer!

https://bbc.godbolt.org/?disc=https://b ... d&autoboot

It's just in MODE 4 for now, and still very buggy, but pleasing progress in such a short time.

Main challenge is going to be RAM for a standard Model B, as there isn't much room after the engine code is included, even in MODE 4. I will be having a think about memory configurations for sideways RAM, Master etc. and how we might support MODEs 1,2,4,5 at build or run time.

And before you ask, yes, VideoNULA is on the backlog but down the bottom at the moment!!

My ultimate goal would be to get Dethmunk's Foggy working in full colour, but a lot to do before then.

[Zuffle]

What an interesting looking project guys. Well done Kees & Kieran!

My ultimate goal would be to get Dethmunk's Foggy working in full colour, but a lot to do before then

I didn't know what Foggy's Quest was so I had a quick peep. Wow! now I can't wait to play that in full colour on the beeb it looks ace

[sbadger]

Thanks to Kees awesome work on the Atom 6502 code, I managed to get the first BBC game up & running in just 3x train journeys...

My ultimate goal would be to get Dethmunk's Foggy working in full colour, but a lot to do before then.

Nice work there! thank you to Kees too

[kieranhj]

Some more progress updates on Beeb AGD. I've fixed the sprite glitches and started rearranging things for the Beeb memory map. RAM is going to be tight but there is still plenty more things to be done. My general approach to split things into two projects:

1. Convert existing ZX Spectrum AGD games to BBC in MODE 4 (Model B) and MODE 1 (+16K SWRAM)
2. Add native BBC support to the AGD compiler for games in MODE 5 (Model B) and MODE 2 (+16 SWRAM)

Unfortunately because of requirement to save RAM by shrinking the MODE 4 screen to Spectrum resolution in the first instance (256x192), I've already broken Electron support. If anyone feels strongly about the Electron version please PM me and we can collaborate with Kees on keeping the 6502 engine clean to support multiple platforms. Now would be a good time for someone to fork my repo to maintain an Electron build...

Here are some WIPs of my favourite games that I've managed to convert so far:

• Balloon
• Dodgy
• Doodlebug
• Dark Tricks
• Ice Slider

Note that I haven't started to optimise the sprite plotting routines yet and that AGD is meant to be locked at 25Hz. Keys are ZX*? Space which isn't the best combination (ignore the keys as listed on any menu screens.)

Let me know what you think and whether there are any requests... Thanks again to Kees for doing the actual hard work of porting the entire script compiler to 6502 from Z80!

[oss003]

Hi guys,

another update for the Atomic AGD engine:

- Added DEFINECONTROLS to define keys in the AGD file
- Added animation speed parameters FAST/MEDIUM/SLOW/VERYSLOW
- Added display features DOUBLEDIGITS, TRIPLEDIGITS, SECONDS
- Added collectable blocks
- Added TABLEJUMP, TABLEFALL, JUMPTABLE commands to define jumptable
- Added DIG command
- Added AtoMMC joystick support
- Fixed jump-, shooting fodderblocks-, MUL/DIV bug

Atomic AGD is now compatible with Jonathan Cauldwells v0.7
The next step is optimizing the code ......

https://www.youtube.com/watch?v=minWwkLwZ-I
https://www.youtube.com/watch?v=Td5UH1GpF0M
https://www.youtube.com/watch?v=i-FcFLk3fY4

Greetings
Kees

[sirmorris]

Brilliant work (as always ) Kees!

[oss003]

Brilliant work (as always ) Kees!

Thanks Charlie .....
We are now working on several AGD ports: BBC, Dragon, Coco .....

There aren't a lot of games for the Einstein.
Fancying an Einstein port? ...........

Greetings
Kees

[soviet]

any news on the bbc micro port

[oss003]

I'll look at it this weekend ...

Greetings
Kees

[JonathanC]

I'll look at it this weekend ...

Greetings
Kees

Guess I'll add the BBC to the editors then.

[JonathanC]

A BBC option has been added to MPAGD this afternoon and will be in the next release. When the BBC and Electron compilers are done you'll be able to edit the MPAGD.INI file to include your build batch files and get developing games for those machines.

[oss003]

A BBC option has been added to MPAGD this afternoon and will be in the next release. When the BBC and Electron compilers are done you'll be able to edit the MPAGD.INI file to include your build batch files and get developing games for those machines.

Great, thanks Jonathan.

Greetings
Kees

[soviet]

Hi this mean that the games can be already run on the bbc micro ?

[oss003]

Hi,

The BBC engine was converted by Kieran and can run a few games.

Doodlebug
Dark Tricks
Ice Slider
and more ..

But the BBC engine still misses a few options which are available in the Atom engine.
As soon as the conversion of the AGD games for the Atom is ready, I'll have a look at the BBC (and maybe the Electron) engines.
If these are working fine I want to start a topic about writing AGD games for the Atom, BBC and Electron.
There are some nice AGD game editors which can be used.

Greetings
Kees