lierolibre 0.5-1build2 / usr / games / lierolibre-packsounds

#!/bin/bash
#
# This script is licensed under the BSD-2-Clause license:
#
# -----//-----
#
# Copyright (c) 2012, Martin Erik Werner <martinerikwerner@gmail.com>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
#    this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# -----//-----
#
# This script reads a set of 30 name-defined wav files from a given directory
# and packs them into a SND-file for LIERO, files must be named correctly
# ("NAME.wav") but may differ in content from the originals.
#
# Credit goes to Tim Verweij for information regarding the SND file format:
# http://lierohell.free.fr/lierohack/docformats/liero-snd.html

usage="Usage: $0 <inputdir> <outputfile.SND>"

if [ $# != 2 ]; then
	echo >&2 $usage
	exit 1
fi

if [ ! -d "$1" ]; then
	echo >&2 "'"$1"' is not a directory, aborting"
	exit 1
fi

if [ ! -r "$1" ]; then
	echo >&2 "'"$1"' is not readable, aborting"
	exit 1
fi

touch "$2" 2>&- || { echo >&2 "Unable to write to file '"$1"', aborting"; exit 1; }

hash sox 2>&- || { echo >&2 "This script requires the "'"SoX"'" audio manipulator, aborting"; exit 1; }

inputdir="$1"
outputfile="$2"
names="SHOTGUN SHOT RIFLE BAZOOKA BLASTER THROW LARPA EXP3A EXP3B EXP2 EXP3 EXP4 EXP5 DIRT BUMP DEATH1 DEATH2 DEATH3 HURT1 HURT2 HURT3 ALIVE BEGIN DROPSHEL RELOADED MOVEUP MOVEDOWN SELECT BOING BURNER"
LANG=C # relying on english output from dd

for i in $names; do
	if [ ! -r "$inputdir"/"$i".wav ]; then
		echo >&2 "'"$inputdir"/"$i".wav' is not readable or nonexistant, aborting"
		exit 1
	fi
done

sounds=30
headersize=2
nameoffset=0
namesize=8
offsetoffset=$namesize
offsetsize=4
sizeoffset=$(($namesize + offsetsize))
sizesize=4
entrysize=$(($namesize + $offsetsize + $sizesize))
indexsize=$(($headersize + $sounds * $entrysize))

# Output file:
# header
# NAME|offset|size
# NAME|offset|size
# NAME|offset|size
# Raw PCM sound data (signed 8bit, 22050 Hz, mono)...

function pad {
# Write $1 NULL bytes to file
	pad="$1"
	p=0

	until [ $p = $pad ]; do
		printf "\x00" >> $outputfile
		p=$(expr $p + 1)
	done
}

function writedec {
# write decimal number $1 to file, and pad to $2 bytes
	dec="$1"
	decsize="$2"
	hex="$(printf '%x\n' $1)"
	d=0

	for h in $(echo "$hex" | rev | fold -b2 | rev); do
		printf "\x$h" >> $outputfile
		export d=$(expr $d + 1)
	done

	if [ $decsize ]; then
		pad $(($decsize - $d))
	fi
}

function writeheader {
	writedec $sounds $headersize
}

function writestring () {
# Write string $1 to file, padding to $2 bytes
	name="$1"
	stringsize="$2"
	s=0

	for c in $(echo $name | fold -b1); do
		dec=$(printf "%d\n" \'$c)
		writedec $dec
		export s=$(expr $s + 1)
	done
	if [ $stringsize ]; then
		pad $(($stringsize - $s))
	fi
}

# Main

echo -n "" > $outputfile
writeheader
dataoffset="$indexsize"
datasize=0

# Index
i=0
for n in $names; do
	name="$n"
	file="$inputdir"/"$n".wav
	entryoffset="$(($headersize + $i * $entrysize))"
	dataoffset="$(($dataoffset + datasize))"
	datasize="$(sox -t wav "$file" \
		-t raw -b 8 -e signed-integer -r 22050 -B -c 1 - | \
		dd 2>&1 >/dev/stdout | sed -n 's/\([0-9]*\)\ bytes\ .*/\1/p')"

	writestring $name $namesize
	writedec $dataoffset $offsetsize
	writedec $datasize $sizesize
	i=$(expr $i + 1)
done

# Raw data
for n in $names; do
	file="$inputdir"/"$n".wav

	sox -t wav "$file" -t raw -b 8 -e signed-integer -r 22050 -B -c 1 - \
		>> $outputfile
done