grit wrapper for pokeemerald

gritty.sh

#!/bin/sh

helpFunction()
{
   echo ""
   echo "Usage: $0 -i input -o output_directory"
   echo "\t-i Input file to invoke grit with"
   echo "\t-o Directory to write output files to"
   exit 1 # Exit script after printing help
}

while getopts "i:o:g:" opt
do
   case "$opt" in
      i ) inputFile="$OPTARG" ;;
      o ) outputDir="$OPTARG" ;;
	  g ) gritFile="$OPTARG" ;;
      ? ) helpFunction ;; # Print helpFunction in case parameter is non-existent
   esac
done

# Print helpFunction in case parameters are empty
if [ -z "$inputFile" ] || [ -z "$outputDir" ]
then
   echo "Some or all of the parameters are empty";
   helpFunction
fi

outWithExt=$outputDir/$(basename $inputFile)
outBase=${outWithExt%.*}
if [ -z "$gritFile" ]
then
    grit $inputFile -fh! -ftb -g -gt -gB4 -p -pn16 -m -mRtpf -pz! -gz! -mzl -o $outBase
else
	grit $inputFile -fh! -ftb -g -gt -gB4 -p -pn16 -m -mRtpf -pz! -gz! -mzl -ff $gritfile -o $outBase
fi

mv "$outBase.img.bin" "$outBase.4bpp"
mv "$outBase.map.bin" "$outBase.bin"
mv "$outBase.pal.bin" "$outBase.gbapal"
tools/gbagfx/gbagfx "$outBase.4bpp" "$outBase.png"
tools/gbagfx/gbagfx "$outBase.gbapal" "$outBase.pal"
rm "$outBase.gbapal"
rm "$outBase.4bpp"