Fix Hell Knight by searching for C1 suffix sprites

[selliott512]

For Freedoom 2 the Hell Knight was appearing as a "?" both in the 3D view and in the things browser. The A1 sprite is mirrored in Doom 2, but not Freedoom 2:

wad-to-lump.py -sv doom2.wad | grep BOS2A1
   7411172       2288  BOS2A1C1   True
wad-to-lump.py -sv freedoom2.wad | grep BOS2A1
  13415544       2940    BOS2A1   True

Incidentally, it would be helpful if Eureka tagged releases. I found the git hashes for the two most recent releases by comparing to source archives, in case you want to do it:

git tag -m 'eureka-editor 1.27b' v1.27b ed8309a2d47e5134e2d8139ae167d0d107121f12
git tag -m 'eureka-editor 1.27'  v1.27  c36196d8eac4388d88815f2cb4054127d028ae04

[selliott512]

I've only tested Doom, but the change seems straight forward in the other *.ugh files.

[ioan-chera]

Now that I look at it, I'm not that fond of how it's been implemented even before your fix, I think it's gotta be smarter than merely pushing hardcoded sprite frame characters. For example, it should be able to scan the loaded sprite resources and pick the first frame… I'm going to work on this…

[selliott512]

Great, thanks for looking into a better fix. I also thought there should be something to search for a prefix, but then I found a simple and isolated way to fix this one issue.

[ioan-chera]

Done.