TOON: Add playtime to saved game

Supports saved games made in the current version or the the last saved game version.

3 files changed, 23 insertions, 8 deletions

diff --git a/engines/toon/detection.cpp b/engines/toon/detection.cpp
index 634d286c7c..f3b510b6f4 100644
--- a/engines/toon/detection.cpp
+++ b/engines/toon/detection.cpp
@@ -160,6 +160,7 @@ bool ToonMetaEngine::hasFeature(MetaEngineFeature f) const {
 	    (f == kSavesSupportMetaInfo) ||
 	    (f == kSavesSupportThumbnail) ||
 	    (f == kSavesSupportCreationDate) ||
+	    (f == kSavesSupportPlayTime) ||
 		(f == kSimpleSavesNames);
 }
 
@@ -168,7 +169,7 @@ void ToonMetaEngine::removeSaveState(const char *target, int slot) const {
 	g_system->getSavefileManager()->removeSavefile(fileName);
 }
 
-int ToonMetaEngine::getMaximumSaveSlot() const { return 99; }
+int ToonMetaEngine::getMaximumSaveSlot() const { return MAX_SAVE_SLOT; }
 
 SaveStateList ToonMetaEngine::listSaves(const char *target) const {
 	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
@@ -183,11 +184,11 @@ SaveStateList ToonMetaEngine::listSaves(const char *target) const {
 		// Obtain the last 3 digits of the filename, since they correspond to the save slot
 		int slotNum = atoi(filename->c_str() + filename->size() - 3);
 
-		if (slotNum >= 0 && slotNum <= 99) {
+		if (slotNum >= 0 && slotNum <= MAX_SAVE_SLOT) {
 			Common::InSaveFile *file = saveFileMan->openForLoading(*filename);
 			if (file) {
 				int32 version = file->readSint32BE();
-				if (version != TOON_SAVEGAME_VERSION) {
+				if ( (version < 4) || (version > TOON_SAVEGAME_VERSION) ) {
 					delete file;
 					continue;
 				}
@@ -220,7 +221,7 @@ SaveStateDescriptor ToonMetaEngine::querySaveMetaInfos(const char *target, int s
 	if (file) {
 
 		int32 version = file->readSint32BE();
-		if (version != TOON_SAVEGAME_VERSION) {
+		if ( (version < 4) || (version > TOON_SAVEGAME_VERSION) ) {
 			delete file;
 			return SaveStateDescriptor();
 		}
@@ -232,8 +233,8 @@ SaveStateDescriptor ToonMetaEngine::querySaveMetaInfos(const char *target, int s
 
 		SaveStateDescriptor desc(slot, saveName);
 
-		Graphics::Surface *thumbnail;
-		if (!Graphics::loadThumbnail(*file, thumbnail)) {
+		Graphics::Surface *thumbnail = nullptr;
+		if (!Graphics::loadThumbnail(*file, thumbnail, false)) {
 			delete file;
 			return SaveStateDescriptor();
 		}
@@ -253,6 +254,11 @@ SaveStateDescriptor ToonMetaEngine::querySaveMetaInfos(const char *target, int s
 
 		desc.setSaveTime(hour, minutes);
 
+		if (version >= 5) {
+			uint32 playTimeMsec = file->readUint32BE();
+			desc.setPlayTime(playTimeMsec);
+		}
+
 		delete file;
 		return desc;
 	}
diff --git a/engines/toon/toon.cpp b/engines/toon/toon.cpp
index 248057d539..d0a4059402 100644
--- a/engines/toon/toon.cpp
+++ b/engines/toon/toon.cpp
@@ -3378,6 +3378,8 @@ bool ToonEngine::saveGame(int32 slot, const Common::String &saveGameDesc) {
 
 	saveFile->writeUint32BE(saveDate);
 	saveFile->writeUint16BE(saveTime);
+	uint32 playTime = getTotalPlayTime();
+	saveFile->writeUint32BE(playTime);
 
 	// save global state
 	_gameState->save(saveFile);
@@ -3444,7 +3446,7 @@ bool ToonEngine::loadGame(int32 slot) {
 		return false;
 
 	int32 saveGameVersion = loadFile->readSint32BE();
-	if (saveGameVersion != TOON_SAVEGAME_VERSION) {
+	if ( (saveGameVersion < 4) || (saveGameVersion > TOON_SAVEGAME_VERSION) ) {
 		delete loadFile;
 		return false;
 	}
@@ -3456,6 +3458,12 @@ bool ToonEngine::loadGame(int32 slot) {
 
 	loadFile->skip(6); // date & time skip
 
+	uint32 playTimeMsec = 0;
+	if (saveGameVersion >= 5) {
+		playTimeMsec = loadFile->readUint32BE();
+	}
+	setTotalPlayTime(playTimeMsec);
+
 	if (_gameState->_currentScene != -1) {
 		exitScene();
 	}
diff --git a/engines/toon/toon.h b/engines/toon/toon.h
index f419d491c6..efb473fef8 100644
--- a/engines/toon/toon.h
+++ b/engines/toon/toon.h
@@ -47,8 +47,9 @@ struct ADGameDescription;
 
 #define TOON_DAT_VER_MAJ 0  // 1 byte
 #define TOON_DAT_VER_MIN 3  // 1 byte
-#define TOON_SAVEGAME_VERSION 4
+#define TOON_SAVEGAME_VERSION 5
 #define DATAALIGNMENT 4
+#define MAX_SAVE_SLOT 99
 
 #define TOON_SCREEN_WIDTH 640
 #define TOON_SCREEN_HEIGHT 400