Switched various Engine APIs to use Common::Error

svn-id: r34916

3 files changed, 12 insertions, 12 deletions

diff --git a/engines/igor/igor.cpp b/engines/igor/igor.cpp
index 4d4fb97762..d68aeb7c3e 100644
--- a/engines/igor/igor.cpp
+++ b/engines/igor/igor.cpp
@@ -88,14 +88,14 @@ IgorEngine::~IgorEngine() {
 	delete _midiPlayer;
 }
 
-int IgorEngine::init() {
+Common::Error IgorEngine::init() {
 	_system->beginGFXTransaction();
 		initCommonGFX(false);
 		_system->initSize(320, 200);
 	_system->endGFXTransaction();
 
 	_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, ConfMan.getInt("sfx_volume"));
-	return 0;
+	return Common::kNoError;
 }
 
 void IgorEngine::restart() {
@@ -169,7 +169,7 @@ void IgorEngine::restart() {
 	_gameTicks = 0;
 }
 
-int IgorEngine::go() {
+Common::Error IgorEngine::go() {
 	restart();
 	setupDefaultPalette();
 	_currentPart = ConfMan.getInt("boot_param");
@@ -192,7 +192,7 @@ int IgorEngine::go() {
 	PART_MAIN();
 	_ovlFile.close();
 	_sndFile.close();
-	return 0;
+	return Common::kNoError;
 }
 
 void IgorEngine::readTableFile() {
diff --git a/engines/igor/igor.h b/engines/igor/igor.h
index 418a7ad6b4..4ded9d1eb3 100644
--- a/engines/igor/igor.h
+++ b/engines/igor/igor.h
@@ -312,8 +312,8 @@ public:
 	IgorEngine(OSystem *system, const DetectedGameVersion *dgv);
 	virtual ~IgorEngine();
 
-	virtual int init();
-	virtual int go();
+	virtual Common::Error init();
+	virtual Common::Error go();
 
 	void handleOptionsMenu_paintSave();
 	bool handleOptionsMenu_handleKeyDownSave(int key);
@@ -427,8 +427,8 @@ protected:
 	void dialogueReplyToQuestion(int x, int y, int r, int g, int b, int reply = 0);
 
 	void saveOrLoadGameState(TypeSerializer &typeSerializer);
-	int loadGameState(int slot);
-	int saveGameState(int slot);
+	Common::Error loadGameState(int slot);
+	Common::Error saveGameState(int slot);
 	void generateGameStateFileName(int num, char *dst, int len) const;
 
 	MidiPlayer *_midiPlayer;
diff --git a/engines/igor/saveload.cpp b/engines/igor/saveload.cpp
index a87ecc0ba5..cbae77a343 100644
--- a/engines/igor/saveload.cpp
+++ b/engines/igor/saveload.cpp
@@ -156,7 +156,7 @@ void IgorEngine::saveOrLoadGameState(TypeSerializer &typeSerializer) {
 	}
 }
 
-int IgorEngine::loadGameState(int slot) {
+Common::Error IgorEngine::loadGameState(int slot) {
 	char name[64];
 	generateGameStateFileName(slot, name, 63);
 	Common::InSaveFile *isf = _saveFileMan->openForLoading(name);
@@ -176,10 +176,10 @@ int IgorEngine::loadGameState(int slot) {
 		debug(0, "Loaded state, current part %d", _currentPart);
 	}
 
-	return 0;	// TODO: return success/failure
+	return Common::kNoError;	// TODO: return success/failure
 }
 
-int IgorEngine::saveGameState(int slot) {
+Common::Error IgorEngine::saveGameState(int slot) {
 	char name[64];
 	generateGameStateFileName(slot, name, 63);
 	Common::OutSaveFile *osf = _saveFileMan->openForSaving(name);
@@ -190,7 +190,7 @@ int IgorEngine::saveGameState(int slot) {
 		delete osf;
 	}
 
-	return 0;	// TODO: return success/failure
+	return Common::kNoError;	// TODO: return success/failure
 }
 
 void IgorEngine::generateGameStateFileName(int num, char *dst, int len) const {