Dullahan Software

Added new soccer sub-menu with the different maps....it's tough, but I like the meteor the best #nesdev #indiedev

That's what I'm aiming for :)

Working thru bugs with the soccer ball anim. The diagonal cases are a lil wonky... #nesdev #indiedev

The soccer ball didn't want to be left out I guess?... #nesdev #gamedev

Game mode select screen finished for now...including tanks and cursed game breaking soccer ball #nesdev #indiedev

Experimenting with a concept for the game mode selection screen... #nesdev #homebrew

Finishing touches for the title screen. On to the post-race screen! #nesdev #homebrew

It has been 0 days since I finally got 2 VRC6 IRQs firing in one frame on the NES. Using them to swap in the flag animations for Rally Rally Rally title screen. #nesdev #gamedev

Working on the Rally Rally Rally title screen this afternoon #nesdev #gamedev

New cup select screen going in for Rally Rally Rally. #nesdev #gamedev

put-put-put-ing into the new year. Lots of new stuff coming so stay tuned! #nesdev #gamedev

Cool cool. I haven't been to SGX in a couple years, so might have to come out for this one!

Hey Sleepy Bits, I was at the PRGE '25 NES101. Sacramento is my neck of the woods, are you all based around here too?!?!

Hey #PortfolioDay I do chunky Pixel art & Animation
Do you have a game that needs a bunch of enemies?
I am ready to unleash my power !!

Portfolio: kevynstott.tumblr.com/
Email: Kevynstott@gmail.com

Never seen a vulture in the wild do that before! #nesdev #rx3

Room transitions working in Janus. Kept it simple and dropped about 80% of the IRQ nonsense I was attempting before...#nesdev #gamedev

Great news for our American customers! 🎉
Orders to the USA are finally back! 🇺🇸

We’re now working with @dalyengames.bsky.social, a true homebrew enthusiast, who will act as our distributor in the US. Shipping fees stay the same, no extra charges, and no new customs taxes for you.

"Joust" races have been a tricky mechanic in Rally Rally Rally. Still trying to find the right mix to make it interesting for 1-player... #nesdev #gamedev

Trap deployments working. Guess I have to implement an enemy real quick so they can do something! #nesdev #gamedev

OK, just implemented simple input buffering for movement and actions and glad I did. Rolling into a buffered shot is so cool! #nesdev #gamedev

It's my understanding that Maniac Mansion does something similar with coroutines and costumes. This makes certain things easier with timing since the animation and gameplay logic are decoupled.

The change_costume macro is effectively inter-thread comm. to tell the costume to change to a different animation. In my NES game engine "veil engine" each actor gets 2 coroutines one for logic and the other a costume thread.

The code shown previously was from the actor's coroutine. This has all the logic for physics and gameplay. There is another coroutine that is the costume thread.

Yeah, with this I am using a jump table. So on the left is a CA65 enum with all the states (including transition states). The middle shows the jump code and part of the table, and then the last are all the subroutines that execute for each state.

Listen to 10 times a day for 2 weeks and let me know if your symptoms persist after that...

6502 assembly

Basic state machine with movement and projectiles now working. Up next, rolls & traps! #nesdev #gamedev

Workshopping movement today. For now going with simple 4-directional with velocity a little under 1 px a frame. #nesdev #gamedev

But how much boost is too much boost? #nesdev #gamedev