iapetus πŸ‡΅πŸ‡Ή
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newiapetus.bsky.social
iapetus πŸ‡΅πŸ‡Ή
@newiapetus.bsky.social
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Prototyping/Programming games for retro machines. I also enjoy #pixelart. (Iapetus/Japetus(pronounced Yapetus) was a Titan in Greek/Roman myth.) ζ—₯本θͺžγŒε€§ε₯½γγ γ€‚At the moment programming Zezito in the Glittering Caves for several retro machines. #forth
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YAY! My game, "Zezito and the Lost Stars" was reviewed by the BrewOtaku magazine (issue #007)!! Have you played the game?

@brewotaku.bsky.social
#8bit #retrogaming #retrogamers #acornelectron #bbcmicro
Reposted by iapetus πŸ‡΅πŸ‡Ή
Got slightly distracted and started looking at the final disc/tape loaders..... 🀯

Exomising the entire game image to reduce footprint / tape load time. Compression ratio about 50%, which will do !

Here's a visual representation of both files - zipped/unzipped !
Reposted by iapetus πŸ‡΅πŸ‡Ή
Wow.... I started the C64 port of Blood Money 36 years ago!

So to celebrate, I've opened up the first article to everyone. I'll open up more in the coming days - Enjoy!

lemmings.info/c64-blood-mo...
Reposted by iapetus πŸ‡΅πŸ‡Ή
This is #Megapaint for #C64 bitmap creation. Presenting this famous #LastNinja2 scene!
don't mention beeb versions lol , I want to have the game running on the beeb but I keep delaying because I know very little of that machine. But I must ...
And yes, the game for the Acorn Electron uses Mode2 as you know and it is much more flexible even having just 8 colours as there no restriction on pixel placement. This other machien will have colour clash if I have more than 2 colours per line where the sprite will be moving. Happy with the result.
I usually use Exomizer but today a friend told me about this one: github.com/einar-saukas... .I’ll have a look to see whether it’s worth making the change to start using it instead or if it is better in certain scenarios. Nice you managed to do what you wanted with compression! Cheers mate
#8bit #gamedev #retrogaming Will I be able to fit this in a 16kb cartridge? Working on it! PNG of just a test for the 6 fully masked sprites. I have 4kb free, but also the rooms are all in & are not compressed so I can get back some kb I hope ;P #indiedev #pixelart #γƒ‰γƒƒγƒˆη΅΅
Reposted by iapetus πŸ‡΅πŸ‡Ή
"Astoraid" but not running on an emulator/real hardware. I've created a mini dev environment using JavaScript + an HTML Canvas that lets me try things out much more quickly than writing lots of 6502. I have a library of routines that mimic the real hardware so the code is close to what it will be...
Reposted by iapetus πŸ‡΅πŸ‡Ή
Reposted by iapetus πŸ‡΅πŸ‡Ή
Got up crazy early (to catch up with MotoGP) and banged out the high score procs..... A bit crackers, but all done I think ! 🀯
so many cool machines! Have a great time
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Risky Way, work in progress game for #Atari2600 console #atari
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I haven't posted an update on "PET Invaders" (WIP) for quite a while.
State of affairs: basic gameplay is finished, any progressions based on shot count are still missing, as is sound. But we're getting there…

#petscii #mos6502
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#Picotron Fantasy Workstation 0.2.1 is up: anywhen listings, .p8 spritesheet imports, batch line(), circ() and many QOL improvements. Changelog: www.lexaloffle.com/dl/docs/pico...

About Picotron: www.picotron.net
so nice, what a complex game engine this game must require! it is very enjoyable seeing things falling into place step by step.
Reposted by iapetus πŸ‡΅πŸ‡Ή
....Where was I ?
That's a couple of geese/hen issues sorted out. They eat the grain a lot faster, so shouldn't be able to rotate to the edges of the tower while eating !

Lower geese clipping sorted as well - this ended up a bit messy, but at least you can see them down there !
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Spectrum Next #Delphian progress: been working on the transition into space, and it's almost there... just needs a starfield, planets, the sun... Oh well, one step at a time...

I've also been rearranging code to use RAM banks so I only bank in code that's needed. Anyway, starfield next!πŸ˜€
Reposted by iapetus πŸ‡΅πŸ‡Ή
Secondly, the geese attempt to flip orientation as they walk around the back of the silo.
The silo circumference is 16 bricks, each split into 3. Depending on which fraction Harry is in depends on how the geese flip looks - one looks ok, the other two not so much ! 🀯
Reposted by iapetus πŸ‡΅πŸ‡Ή
So on to some geese/hen issues. Firstly, the geese (I've always called them geese) should eat the grain when they're in full view, in the middle of the screen, not at the edges. Sometimes if Harry runs quickly in the opposite direction, the goose is still eating the grain at the edge of the silo...
Reposted by iapetus πŸ‡΅πŸ‡Ή