I tried adding a custom sprite, but I get this error: Unable to find sprite lump HOOKA used by actor "hook". Here's all the steps I did:
- created "S_START* and "S_END" markers in the wad
- imported a .bmp file between them
- converted it to Doom format
- named it "HOOKA10"
- created an actor in DECORATE with this code:
actor hook 14169
HOOK A -1
Did I miss a step?