splitflats - cut images into equal-sized tiles (Doom flat splitter)

USAGE
  splitflats -size WxH
  splitflats --help | -help | -h | /?

OPTIONS
  -size WxH     Tile size in pixels (default 64x64), e.g. -size 64x64, -size 128x128
  -help         Show this help

BEHAVIOUR
  Processes every image in the current folder
  (png, jpg, jpeg, bmp, gif, tif, tiff, webp).
  Tiles are numbered left-to-right, top-to-bottom, starting at 1,
  and written to .\split\ as <basename><n>.<ext>

VALIDATION (all files checked before anything is written)
  - Image width/height must divide evenly by the tile size
  - Every output name (basename + tile number) must be exactly 8 chars
    Numbering starts at 1, so in practice the basename must be 7 chars
    and the image must produce at most 9 tiles
    e.g. FLOOR01 -> FLOOR011 .. FLOOR019
  If any file fails, nothing is processed.

EXAMPLES
  splitflats -size 64x64
  splitflats -size 32x32

--== spitFlats_script.py ==--

This is a UDB Script to place the flats into your map
to create a mozaic patter of the cut up image on the 
floor or cieling.