#!/bin/bash
# et-sdl-sound - SDL sound system for Enemy Territory, RTCW and Q3
# Copyright (C) 2007-2008  Pyry Haulos
# Please fill in following variables or let this script
# guess correct values.
# You can set this in GAME_PATH environment variable

GAME_PATH="/home/wr/games/RTCW"

# libSDL.so
# You can set this in LIBSDL environment variable
LIBSDL="/home/wr/games/RTCW/libSDL-1.2.so.0"
# Temporary directory

TMP_DIR="/tmp"

# Use 'find' if can't locate the game or libSDL otherwise

USE_FIND="yes"

# SDL audio driver

SDL_AUDIODRIVER="aoss"

# Just extract et-sdl-sound.so

ONLY_EXTRACT="no"

# Do not touch anything below this line!
SCRIPT_NAME='wolfsp-sdl-sound'
GAME_BIN='wolfsp.x86'
GAME_DIR='RTCW'
ET_SDL_SOUND_LIB=''\
'\x7f\x45\x4c\x46\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x03'\
...Дальше идёт куча вот таких вот абракадабр...
TRIED_LIBSDL="" # for debugging info

# info "message"

info () {
    echo -e "\033[34m[${SCRIPT_NAME}] \033[32minfo\033[0m   : $1"
}

# error "message"

error () {
    echo -e "\033[34m[${SCRIPT_NAME}] \033[31merror\033[0m  : $1"
}

# eend "message"

eend () {
    error "$1"
    exit 1
}

# testgamepath "path"

testgamepath () {
    # TODO test some .pk3 files?
    if [ -x "$1/$GAME_BIN" -a "$GAME_PATH" = "" ]; then
        info "$GAME_BIN is installed to $1"
        GAME_PATH=$1
    fi
}

# testlibsdl "path"

testlibsdl () {
    TRIED_LIBSDL="$TRIED_LIBSDL $1"
    
    READLINK=`readlink -f "$1"`
    if [ "$LIBSDL" = "" -a "$READLINK" != "$1" ]; then
        #info "$1 is a symbolic link to $READLINK"
        testlibsdl "$READLINK"
    fi
    
    if [ "$LIBSDL" = "" -a -f "$1" ]; then
        if [ "`file -b "$1" | grep "ELF 32-bit LSB shared object"`" != "" ]; then
            info "32-bit libSDL.so is installed to $1"
            LIBSDL="$1"
        fi
    fi
}

if [ "$ONLY_EXTRACT" = "yes" ]; then
    echo -ne "$ET_SDL_SOUND_LIB" > "./et-sdl-sound.so" || eend "can't write ./et-sdl-sound.so"
    info "library is written to ./et-sdl-sound.so"
    exit 0
fi

[ "$GAME_PATH" = "" ] && testgamepath "/usr/local/games/$GAME_DIR"
[ "$GAME_PATH" = "" ] && testgamepath "/opt/$GAME_DIR"
[ "$GAME_PATH" = "" ] && testgamepath "/usr/games/$GAME_DIR"
[ "$GAME_PATH" = "" ] && testgamepath "~/$GAME_DIR"
if [ "$GAME_PATH" = "" ]; then
    LOCATE_GAME=`locate "$GAME_BIN" 2> /dev/null`
    for i in $LOCATE_GAME; do
        i=`dirname "$i"`
        testgamepath $i
        [ "$GAME_PATH" != "" ] && break
    done
fi
if [ "$GAME_PATH" = "" -a "$USE_FIND" = "yes" ]; then
    FIND_GAME=`find /opt/ /usr/ -type f -name "$GAME_BIN"`
    for i in $FIND_GAME; do
        i=`dirname "$i"`
        testgamepath $i
        [ "$GAME_PATH" != "" ] && break
    done
fi
[ "$GAME_PATH" = "" ] && eend "can't locate $GAME_BIN"

[ "$LIBSDL" = "" ] && testlibsdl "/usr/lib/libSDL.so"
[ "$LIBSDL" = "" ] && testlibsdl "/usr/lib/libSDL-1.2.so.0"
[ "$LIBSDL" = "" ] && testlibsdl "/usr/lib32/libSDL.so"
[ "$LIBSDL" = "" ] && testlibsdl "/usr/lib32/libSDL-1.2.so.0"
if [ "$LIBSDL" = "" ]; then
    LOCATE_LIBSDL=`locate -r libSDL[^_]*so[^_]* 2> /dev/null`
    for i in $LOCATE_LIBSDL; do
        testlibsdl $i
        [ "$LIBSDL" != "" ] && break
    done
fi
if [ "$LIBSDL" = "" -a "$USE_FIND" = "yes" ]; then
    FIND_LIBSDL=`find /usr/lib/ /usr/lib32/ -type f -name libSDL[^_]*so[^_]*`
    for i in $FIND_LIBSDL; do
        testlibsdl $i
        [ "$LIBSDL" != "" ] && break
    done
fi
if [ "$LIBSDL" = "" ]; then
    error "can't locate libSDL.so"
    info "tried following files"
    for i in $TRIED_LIBSDL; do
        FILE_INFO=`file -b "$i"`
        info "$i"
        info "   $FILE_INFO"
    done
    exit 1
fi

echo -ne "$ET_SDL_SOUND_LIB" > "$TMP_DIR/et-sdl-sound.so" || eend "can't write $TMP_DIR/et-sdl-sound.so"
info "library is written to $TMP_DIR/et-sdl-sound.so"

info "launching the game..."
cd "$GAME_PATH"

export ETSDL_SDL_LIB="$LIBSDL"
export SDL_AUDIODRIVER="$SDL_AUDIODRIVER"
LD_PRELOAD="${LD_PRELOAD}:${TMP_DIR}/et-sdl-sound.so" ./$GAME_BIN $*

rm "$TMP_DIR/et-sdl-sound.so" || error "can't remove $TMP_DIR/et-sdl-sound.so"

info "done"