scummvm/engines/private/private.cpp

#include "common/scummsys.h"

#include "common/config-manager.h"
#include "common/debug.h"
#include "common/debug-channels.h"
#include "common/error.h"
#include "common/events.h"
#include "common/file.h"
#include "common/fs.h"
#include "common/system.h"

#include "engines/util.h"

#include "private/private.h"

namespace Private {

PrivateEngine::PrivateEngine(OSystem *syst)
	: Engine(syst) {
	// Put your engine in a sane state, but do nothing big yet;
	// in particular, do not load data from files; rather, if you
	// need to do such things, do them from run().

	// Do not initialize graphics here
	// Do not initialize audio devices here

	// However this is the place to specify all default directories
	const Common::FSNode gameDataDir(ConfMan.get("path"));
	SearchMan.addSubDirectoryMatching(gameDataDir, "sound");

	// Here is the right place to set up the engine specific debug channels
	DebugMan.addDebugChannel(kPrivateDebugExample, "example", "this is just an example for a engine specific debug channel");
	DebugMan.addDebugChannel(kPrivateDebugExample2, "example2", "also an example");

	// Don't forget to register your random source
	_rnd = new Common::RandomSource("private");

	debug("PrivateEngine::PrivateEngine");
}

PrivateEngine::~PrivateEngine() {
	debug("PrivateEngine::~PrivateEngine");

	// Dispose your resources here
	delete _rnd;

	// Remove all of our debug levels here
	DebugMan.clearAllDebugChannels();
}

Common::Error PrivateEngine::run() {
	// Initialize graphics using following:
	initGraphics(320, 200);

	// You could use backend transactions directly as an alternative,
	// but it isn't recommended, until you want to handle the error values
	// from OSystem::endGFXTransaction yourself.
	// This is just an example template:
	//_system->beginGFXTransaction();
	//	// This setup the graphics mode according to users seetings
	//	initCommonGFX(false);
	//
	//	// Specify dimensions of game graphics window.
	//	// In this example: 320x200
	//	_system->initSize(320, 200);
	//FIXME: You really want to handle
	//OSystem::kTransactionSizeChangeFailed here
	//_system->endGFXTransaction();

	// Create debugger console. It requires GFX to be initialized
	Console *console = new Console(this);
	setDebugger(console);

	// Additional setup.
	debug("PrivateEngine::init");

	// Your main even loop should be (invoked from) here.
	debug("PrivateEngine::go: Hello, World!");

	// This test will show up if -d1 and --debugflags=example are specified on the commandline
	debugC(1, kPrivateDebugExample, "Example debug call");

	// This test will show up if --debugflags=example or --debugflags=example2 or both of them and -d3 are specified on the commandline
	debugC(3, kPrivateDebugExample | kPrivateDebugExample2, "Example debug call two");

	// Simple main event loop
	Common::Event evt;
	while (!shouldQuit()) {
		g_system->getEventManager()->pollEvent(evt);
		g_system->delayMillis(10);
	}

	return Common::kNoError;
}

bool PrivateEngine::hasFeature(EngineFeature f) const {
	return
		(f == kSupportsReturnToLauncher) ||
		(f == kSupportsLoadingDuringRuntime) ||
		(f == kSupportsSavingDuringRuntime);
}

Common::Error PrivateEngine::loadGameStream(Common::SeekableReadStream *stream) {
	Common::Serializer s(stream, nullptr);
	syncGameStream(s);
	return Common::kNoError;
}

Common::Error PrivateEngine::saveGameStream(Common::WriteStream *stream, bool isAutosave) {
	Common::Serializer s(nullptr, stream);
	syncGameStream(s);
	return Common::kNoError;
}

void PrivateEngine::syncGameStream(Common::Serializer &s) {
	// Use methods of Serializer to save/load fields
	int dummy = 0;
	s.syncAsUint16LE(dummy);
}

} // End of namespace Private