I heard that a crop editor existed... and since I couldn't find it, I made my own. It's not complete partly because I didn't entirely decipher the format; however, my spreadsheet and text files of hacking are included in the ZIP.
http://i1097.photobucket.com/albums/...reeWindows.png
http://www.gamefront.com/files/21004...armHacking.zip
Edit: Updated program a lot.
Edit again: Updated program a lot again. :P
Code:
Format documented
| Reader programmed
| | Writer programmed
| | | Format/reader/writer unnecessary
| | | | Extension
| | | | | Description
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X XMI Music (XMIDI) - http://zdoom.org/wiki/XMI
X VOC Creative Voice File - Audacity can load these
X ODT Region map (plain text)
X DAT Rain/temperature/wind, event text, etc. (plain text)
X X X HC Help Card
X X X EEA Archive
X X X IDX Archive file indexes
X X X PAL Palette
X X X EPL EGA palette
X X X CRP Crop file
X X X BMP Bitmap (8-byte header)
X X X TIL Tiles
X X X FNT Font file (just more tiles, 8x8)
X X X SPR Sprites
X X X BTL Big tiles (weather tiles 112x32; others 112x64)
X X X INT Full-screen images
X CMP Stages of town growth
X SFM SimFarm Map (game save)
X SSM SimFarm Scenario Map (preset) - same as SFM
EXE MZ format executable, some string locations documented
MBM Related to colors of the in-game map
LZS Likely compressed; modifying it corrupts the sidebar
AD Audio
ADV Audio
OPL Audio-related