Pedro Custodio

Genuinely surprised at how smoothly this went. Ive always suspected that an undo system could be done in a simple way with arenas but I didn’t think it would be this straightforward.

Best part is I was able to totally avoid writing any sort of “action” system where actions could be done and undone. All the existing code that modifies the map state remained almost identical. The only change was an extra call to save a map snapshot in a few places.

The entire thing took under and hour and worked flawlessly after fixing some finicky address calculations that I initially got wrong.

The entire map state is kept in its own bespoke arena. Undo was implemented by just taking snapshots of the “map” arena and pushing them onto a stack in a separate “undo” arena. Snapshots are popped and restored onto their original arena when ctrl+z is pressed. That’s it!

🧵I was able to retrofit a basic undo system into my existing map editor relatively painlessly in under an hour because of how I manage memory with arenas.

Download here: yyam.itch.io/sandtoy

Sand Toy ⏳ A falling sand sim that runs entirely on the GPU.

rocko league

Verlet integration

I wonder how many extra million lines of code exist in the world just because JSON doesn’t allow trailing commas.

You could try 10x editor by @stewartlynch8 It opens VS solutions and any type of searching works instantly across a codebase the size of UE4.

Sure, I've uploaded it to the itch page

More D3D12 adventures. Textures are surprisingly tricky to upload to the GPU

D3D12 adventures

Using Twitter with “latest tweets first” is such a serene experience. Way better than “Home” mode where it’s full of US politics and everyone’s depressing hot takes. Sometimes I just want to see cool gamedev stuff and not all the world’s problems at once..

Big knowledge gains incoming

I was in a similar situation a year ago. I pitched my final year project as a comparison of rendering techniques (rasterisation and ray tracing) Means you have to write a ray tracer as well lol but it’s more “sciencey”. Feel free to DM :)