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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.
*
* $URL$
* $Id$
*
*/
/*
* This code is based on Broken Sword 2.5 engine
*
* Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
*
* Licensed under GNU GPL v2
*
*/
#include "common/config-manager.h"
#include "common/debug-channels.h"
#include "engines/util.h"
#include "sword25/sword25.h"
#include "sword25/kernel/filesystemutil.h"
#include "sword25/kernel/kernel.h"
#include "sword25/package/packagemanager.h"
#include "sword25/script/script.h"
namespace Sword25 {
#define BS_LOG_PREFIX "MAIN"
const char *const PACKAGE_MANAGER = "archiveFS";
const char *const DEFAULT_SCRIPT_FILE = "/system/boot.lua";
void LogToStdout(const char *Message) {
debugN(0, "%s", Message);
}
Sword25Engine::Sword25Engine(OSystem *syst, const ADGameDescription *gameDesc):
Engine(syst),
_gameDescription(gameDesc) {
DebugMan.addDebugChannel(kDebugScript, "Script", "Script debug level");
}
Sword25Engine::~Sword25Engine() {
}
Common::Error Sword25Engine::run() {
// Engine initialisation
Common::StringArray commandParameters;
Common::Error errorCode = AppStart(commandParameters);
if (errorCode != Common::kNoError) {
AppEnd();
return errorCode;
}
// Run the game
bool RunSuccess = AppMain();
// Engine de-initialisation
bool DeinitSuccess = AppEnd();
return (RunSuccess && DeinitSuccess) ? Common::kNoError : Common::kUnknownError;
}
Common::Error Sword25Engine::AppStart(const Common::StringArray &CommandParameters) {
// All log messages will be sent to StdOut
BS_Log::RegisterLogListener(LogToStdout);
// Initialise the graphics mode to ARGB8888
Graphics::PixelFormat format = Graphics::PixelFormat(4, 8, 8, 8, 8, 16, 8, 0, 24);
initGraphics(800, 600, true, &format);
if (format != g_system->getScreenFormat())
return Common::kUnsupportedColorMode;
// Kernel initialization
if (!Kernel::GetInstance()->GetInitSuccess()) {
BS_LOG_ERRORLN("Kernel initialization failed.");
return Common::kUnknownError;
}
// Package-Manager starten, damit die Packfiles geladen werden k�nnen.
PackageManager *PackageManagerPtr = static_cast<PackageManager *>(Kernel::GetInstance()->NewService("package", PACKAGE_MANAGER));
if (!PackageManagerPtr) {
BS_LOG_ERRORLN("Packagemanager initialization failed.");
return Common::kUnknownError;
}
// Packages laden oder das aktuelle Verzeichnis mounten, wenn das �ber Kommandozeile angefordert wurde.
if (getGameFlags() & GF_EXTRACTED) {
if (!PackageManagerPtr->LoadDirectoryAsPackage(ConfMan.get("path"), "/"))
return Common::kUnknownError;
} else {
if (!LoadPackages())
return Common::kUnknownError;
}
// Einen Pointer auf den Skript-Engine holen.
ScriptEngine *ScriptPtr = static_cast<ScriptEngine *>(Kernel::GetInstance()->GetService("script"));
if (!ScriptPtr) {
BS_LOG_ERRORLN("Script intialization failed.");
return Common::kUnknownError;
}
// Die Kommandozeilen-Parameter der Skriptumgebung zug�nglich machen.
ScriptPtr->SetCommandLine(CommandParameters);
return Common::kNoError;
}
bool Sword25Engine::AppMain() {
// The main script start. This script loads all the other scripts and starts the actual game.
ScriptEngine *ScriptPtr = static_cast<ScriptEngine *>(Kernel::GetInstance()->GetService("script"));
BS_ASSERT(ScriptPtr);
ScriptPtr->ExecuteFile(DEFAULT_SCRIPT_FILE);
return true;
}
bool Sword25Engine::AppEnd() {
// The kernel is shutdown, and un-initialises all subsystems
Kernel::DeleteInstance();
// Free the log file if it was used
BS_Log::_CloseLog();
return true;
}
bool Sword25Engine::LoadPackages() {
PackageManager *PackageManagerPtr = reinterpret_cast<PackageManager *>(Kernel::GetInstance()->GetService("package"));
BS_ASSERT(PackageManagerPtr);
// Load the main package
if (!PackageManagerPtr->LoadPackage("data.b25c", "/")) return false;
// Get the contents of the main program directory and sort them alphabetically
Common::StringArray Filenames = FileSystemUtil::GetInstance().GetFilesInDirectory(".");
Common::sort(Filenames.begin(), Filenames.end());
// Identity all patch packages
// The filename of patch packages must have the form patch??.b25c, with the question marks
// are placeholders for numbers.
// Since the filenames have been sorted, patches are mounted with low numbers first, through
// to ones with high numbers. This is important, because newly mount packages overwrite
// existing files in the virtual file system, if they include files with the same name.
for (Common::StringArray::const_iterator it = Filenames.begin(); it != Filenames.end(); ++it) {
const Common::String &CurFilename = *it;
// Is the current file a patch package?
static const Common::String PatchPattern = "patch???.b25c";
if (CurFilename.size() == PatchPattern.size()) {
// Check the file against the patch pattern character by character
Common::String::const_iterator PatchPatternIt = PatchPattern.begin();
Common::String::const_iterator CurFilenameIt = CurFilename.begin();
for (; PatchPatternIt != PatchPattern.end(); ++PatchPatternIt, ++CurFilenameIt) {
if (*PatchPatternIt == '?') {
if (*CurFilenameIt < '0' || *CurFilenameIt > '9') break;
} else {
if (*PatchPatternIt != *CurFilenameIt) break;
}
}
if (PatchPatternIt == PatchPattern.end()) {
// The pattern fits, so the file should be mounted
if (!PackageManagerPtr->LoadPackage(CurFilename, "/")) return false;
}
}
}
// Identity and mount all language packages
// The filename of the packages have the form lang_*.b25c (eg. lang_de.b25c)
for (Common::StringArray::const_iterator it = Filenames.begin(); it != Filenames.end(); ++it) {
const Common::String &CurFilename = *it;
static const Common::String Prefix = "lang_";
static const Common::String Suffix = ".b25c";
// Make sure the filename prefix and suffix has characters between them
if ((CurFilename.size() >= Prefix.size() && Common::String(CurFilename.begin(), CurFilename.begin() + Prefix.size()) == Prefix) && // Prefix test
(CurFilename.size() >= Suffix.size() && Common::String(CurFilename.end() - Suffix.size(), CurFilename.end()) == Suffix) && // Suffix test
(CurFilename.size() > Prefix.size() + Suffix.size())) {
// Pattern matches - the file should be mounted
if (!PackageManagerPtr->LoadPackage(CurFilename, "/")) return false;
}
}
return true;
}
} // End of namespace Sword25
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