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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "scummvm_file.h"
#include "common/config-manager.h"
#include "common/language.h"
namespace Lua {
LuaFileProxy::LuaFileProxy(const Common::String &filename, const Common::String &mode) : _readPos(0) {
assert(filename.contains("config.lua"));
if (mode == "r")
setupConfigFile();
}
Common::String LuaFileProxy::formatDouble(double value) {
// This is a bit hackish. The point of it is that it's important that
// we ignore the locale decimal mark and force it to be a point. If it
// would happen to be a comma instead, it seems that it's seen as two
// comma-separated integers rather than one floating-point value. Or
// something like that.
bool negative = value < 0.0;
value = fabs(value);
double integerPart = floor(value);
double fractionalPart = (value - integerPart) * 1000000.0;
return Common::String::format("%s%.0f.%.0f", negative ? "-" : "", integerPart, fractionalPart);
}
void LuaFileProxy::setupConfigFile() {
double sfxVolume = !ConfMan.hasKey("sfx_volume") ? 1.0 : 1.0 * ConfMan.getInt("sfx_volume") / 255.0;
double musicVolume = !ConfMan.hasKey("music_volume") ? 0.5 : 1.0 * ConfMan.getInt("music_volume") / 255.0;
double speechVolume = !ConfMan.hasKey("speech_volume") ? 1.0 : 1.0 * ConfMan.getInt("speech_volume") / 255.0;
bool subtitles = !ConfMan.hasKey("subtitles") ? true : ConfMan.getBool("subtitles");
_readData = Common::String::format(
"GAME_LANGUAGE = \"%s\"\r\n\
GAME_SUBTITLES = %s\r\n\
MAX_MEMORY_USAGE = 256000000\r\n\
GFX_VSYNC_ACTIVE = true\r\n\
SFX_SAMPLING_RATE = 44100\r\n\
SFX_CHANNEL_COUNT = 32\r\n\
SFX_SOUND_VOLUME = %s\r\n\
SFX_MUSIC_VOLUME = %s\r\n\
SFX_SPEECH_VOLUME = %s\r\n",
getLanguage().c_str(), subtitles ? "true" : "false",
formatDouble(sfxVolume).c_str(),
formatDouble(musicVolume).c_str(),
formatDouble(speechVolume).c_str());
_readPos = 0;
}
LuaFileProxy::~LuaFileProxy() {
if (!_settings.empty())
writeSettings();
}
size_t LuaFileProxy::read(void *ptr, size_t size, size_t count) {
size_t bytesRead = MIN<size_t>(_readData.size() - _readPos, size * count);
memmove(ptr, &_readData.c_str()[_readPos], bytesRead);
_readPos += bytesRead;
return bytesRead / size;
}
size_t LuaFileProxy::write(const char *ptr, size_t count) {
// Loop through the provided line(s)
while (*ptr) {
if ((*ptr == '-') && (*(ptr + 1) == '-')) {
// Comment line to skip over
while ((*ptr != '\r') && (*ptr != '\n'))
++ptr;
} else {
// Legitimate data
const char *p = strchr(ptr, '\n');
if (!p) p = ptr + strlen(ptr);
while ((*p == '\r') || (*p == '\n'))
++p;
_settings += Common::String(ptr, p - ptr);
ptr = p;
}
while ((*ptr == '\r') || (*ptr == '\n'))
++ptr;
}
return count;
}
void LuaFileProxy::writeSettings() {
// Loop through the setting lines
const char *pSrc = _settings.c_str();
while (*pSrc) {
if ((*pSrc != '\r') && (*pSrc != '\n')) {
const char *p = strchr(pSrc, '=');
assert(p);
// Get the setting name
const char *pEnd = p - 1;
while (*pEnd == ' ')
--pEnd;
Common::String settingName(pSrc, pEnd - pSrc + 1);
// Get the setting value
const char *pStart = p + 1;
while (*pStart == ' ')
++pStart;
pEnd = pStart + 1;
while ((*pEnd != '\r') && (*pEnd != '\n') && (*pEnd != '\0'))
++pEnd;
Common::String value(pStart + (*pStart == '"' ? 1 : 0), pEnd - pStart - (*pStart == '"' ? 2 : 0));
// Update the setting
updateSetting(settingName, value);
pSrc = pEnd;
}
// Move to next line
while ((*pSrc == '\r') || (*pSrc == '\n'))
++pSrc;
}
ConfMan.flushToDisk();
}
void LuaFileProxy::updateSetting(const Common::String &setting, const Common::String &value) {
if (setting == "GAME_LANGUAGE")
setLanguage(value);
else if (setting == "GAME_SUBTITLES")
ConfMan.setBool("subtitles", value == "true");
else if (setting == "SFX_SOUND_VOLUME") {
double v = strtod(value.c_str(), NULL);
ConfMan.setInt("sfx_volume", (int)(v * 255));
} else if (setting == "SFX_MUSIC_VOLUME") {
double v = strtod(value.c_str(), NULL);
ConfMan.setInt("music_volume", (int)(v * 255));
} else if (setting == "SFX_SPEECH_VOLUME") {
double v = strtod(value.c_str(), NULL);
ConfMan.setInt("speech_volume", (int)(v * 255));
} else {
// All other settings are ignored
}
}
/**
* Get the language code used by the game for each language it supports
*/
Common::String LuaFileProxy::getLanguage() {
Common::Language lang = Common::parseLanguage(ConfMan.get("language"));
switch (lang) {
case Common::EN_ANY:
return "en";
case Common::DE_DEU:
return "de";
case Common::ES_ESP:
return "es";
case Common::FR_FRA:
return "fr";
case Common::HU_HUN:
return "hu";
case Common::IT_ITA:
return "it";
case Common::PL_POL:
return "pl";
case Common::PT_BRA:
return "pt";
case Common::RU_RUS:
return "ru";
default:
error("Unknown language '%s' encountered", ConfMan.get("language").c_str());
break;
}
}
/**
* Set the language code fro the game
*/
void LuaFileProxy::setLanguage(const Common::String &lang) {
if (lang == "en")
ConfMan.set("language", Common::getLanguageCode(Common::EN_ANY));
else if (lang == "de")
ConfMan.set("language", Common::getLanguageCode(Common::DE_DEU));
else if (lang == "es")
ConfMan.set("language", Common::getLanguageCode(Common::ES_ESP));
else if (lang == "fr")
ConfMan.set("language", Common::getLanguageCode(Common::FR_FRA));
else if (lang == "hu")
ConfMan.set("language", Common::getLanguageCode(Common::HU_HUN));
else if (lang == "it")
ConfMan.set("language", Common::getLanguageCode(Common::IT_ITA));
else if (lang == "pl")
ConfMan.set("language", Common::getLanguageCode(Common::PL_POL));
else if (lang == "pt")
ConfMan.set("language", Common::getLanguageCode(Common::PT_BRA));
else if (lang == "ru")
ConfMan.set("language", Common::getLanguageCode(Common::RU_RUS));
else
error("Unknown language encountered");
}
} // End of namespace Lua
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