4cade/bin/buildfx.sh
2021-10-08 12:20:42 -04:00

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#!/bin/bash
# create or truncate merged-effects file
:>| "$3"
# make temp file with list of effect names
records=$(mktemp)
grep -v "^$" < "$1" | grep -v "^#" | grep -v "^\[" > "$records"
# make temp assembly source file that represents the binary OKVS data structure
source=$(mktemp)
(echo "*=0" # dummy program counter for assembler
echo "!le16 $(wc -l <"$records"), 0" # OKVS header
while read -r key; do
echo "!byte ${#key}+5" # OKVS record length
echo "!byte ${#key}" # OKVS key length
echo "!text \"$key\"" # OKVS key (effect name)
echo "!be24 $(wc -c <"$3")" # offset into merged-effects file
cat "build/FX/$key" >> "$3" # add effect code into merged-effects file
# (all effects were previously assembled)
done < "$records") > "$source"
# assemble temp source file to create binary OKVS data structure
acme -o "$2" "$source"
# clean up
rm "$source"
rm "$records"