Map an image against an existing tileset?

I think it's a very specific need but I will ask anyway.

Let say that I have a chr already. I want to extract the name table from an image against that chr. This means the tool look at the chr, try to find tiles in the picture and make the nametable data for that screen. Usually it's the opposite you want to do, automatically extract the tiles from an existing image and the nametable, I just want to create the nametable data only.

Does such tool exist? I do not remember seeing any or my memory is failing me.

Yes, "tilecoords" from my tools at github.com/clbr/nes.

I seem to remember that savtool.py from my NES background editor can do this as well. Try this:

@calima, @tepples

So those tools does exist, even two of them That will be quite useful for some testing I have to do against an exist chr. Thanks!

I have something too. It reads a palette file, an existing tileset and a png with the image and creates a .NAM, optionally a rle'd image using the Nesst format

https://github.com/mojontwins/MK1_NES/b ... namgen.bas
https://github.com/mojontwins/MK1_NES/b ... namgen.exe

(It's on the 2.0 branch of AGNES, not released yet)

@na_th_an

Another one, thanks! You should announce your latest game here

So it seems that it was more common than I expected. I had the impression that is was something less common and people were doing the opposite like taking a PNG, extract the chr+nam instead. I was wrong.

Many times I find easier building my title or cutscene screens in Aseprite or Photoshop. Also, this integrates in my toolchain, so I can use the same png to first extract pattern data and build a chr and then use namgen the chr to get a nam out of the png.