Add support for --list-saves to the sky engine

svn-id: r30987

3 files changed, 58 insertions, 5 deletions

diff --git a/engines/scumm/detection.cpp b/engines/scumm/detection.cpp
index cfd0303302..4f10b9a1c3 100644
--- a/engines/scumm/detection.cpp
+++ b/engines/scumm/detection.cpp
@@ -947,7 +947,7 @@ SaveStateList ScummMetaEngine::listSaves(const char *target) const {
 	sort(filenames.begin(), filenames.end());	// Sort (hopefully ensuring we are sorted numerically..)
 
 	SaveStateList saveList;
-	for (Common::StringList::const_iterator file = filenames.begin(); file != filenames.end(); file++){
+	for (Common::StringList::const_iterator file = filenames.begin(); file != filenames.end(); file++) {
 		// Obtain the last 2 digits of the filename, since they correspond to the save slot
 		int slotNum = atoi(file->c_str() + file->size() - 2);
 		
diff --git a/engines/sky/control.cpp b/engines/sky/control.cpp
index dc36c27df7..53169402e1 100644
--- a/engines/sky/control.cpp
+++ b/engines/sky/control.cpp
@@ -1054,9 +1054,9 @@ void Control::showSprites(dataFileHeader **nameSprites, bool allowSave) {
 	delete drawResource;
 }
 
-void Control::loadDescriptions(Common::StringList &list) {
+void Control::loadDescriptions(Common::StringList &savenames) {
 
-	list.resize(MAX_SAVE_GAMES);
+	savenames.resize(MAX_SAVE_GAMES);
 
 	Common::InSaveFile *inf;
 	inf = _saveFileMan->openForLoading("SKY-VM.SAV");
@@ -1065,8 +1065,8 @@ void Control::loadDescriptions(Common::StringList &list) {
 		char *tmpPtr = tmpBuf;
 		inf->read(tmpBuf, MAX_SAVE_GAMES * MAX_TEXT_LEN);
 		for (int i = 0; i < MAX_SAVE_GAMES; ++i) {
-			list[i] = tmpPtr;
-			tmpPtr += list[i].size() + 1;
+			savenames[i] = tmpPtr;
+			tmpPtr += savenames[i].size() + 1;
 		}
 		delete inf;
 		delete[] tmpBuf;
diff --git a/engines/sky/sky.cpp b/engines/sky/sky.cpp
index 9c0f3de9e6..ae1abc677d 100644
--- a/engines/sky/sky.cpp
+++ b/engines/sky/sky.cpp
@@ -31,6 +31,7 @@
 #include "common/file.h"
 #include "common/fs.h"
 #include "common/events.h"
+#include "common/savefile.h"
 #include "common/system.h"
 #include "common/timer.h"
 
@@ -114,6 +115,8 @@ public:
 	virtual GameList detectGames(const FSList &fslist) const;
 
 	virtual PluginError createInstance(OSystem *syst, Engine **engine) const;
+
+	virtual SaveStateList listSaves(const char *target) const;
 };
 
 const char *SkyMetaEngine::getName() const {
@@ -194,6 +197,56 @@ PluginError SkyMetaEngine::createInstance(OSystem *syst, Engine **engine) const
 	return kNoError;
 }
 
+SaveStateList SkyMetaEngine::listSaves(const char *target) const {
+	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
+	SaveStateList saveList;
+
+	// Load the descriptions
+	Common::StringList savenames;
+	savenames.resize(MAX_SAVE_GAMES+1);
+
+	Common::InSaveFile *inf;
+	inf = saveFileMan->openForLoading("SKY-VM.SAV");
+	if (inf != NULL) {
+		char *tmpBuf =  new char[MAX_SAVE_GAMES * MAX_TEXT_LEN];
+		char *tmpPtr = tmpBuf;
+		inf->read(tmpBuf, MAX_SAVE_GAMES * MAX_TEXT_LEN);
+		for (int i = 0; i < MAX_SAVE_GAMES; ++i) {
+			savenames[i] = tmpPtr;
+			tmpPtr += savenames[i].size() + 1;
+		}
+		delete inf;
+		delete[] tmpBuf;
+	}
+
+	// Find all saves
+	Common::StringList filenames;
+	filenames = saveFileMan->listSavefiles("SKY-VM.???");
+	sort(filenames.begin(), filenames.end());	// Sort (hopefully ensuring we are sorted numerically..)
+
+	// Slot 0 is the autosave, if it exists.
+	// TODO: Check for the existence of the autosave -- but this require us
+	// to know which SKY variant we are looking at.
+	saveList.insert_at(0, SaveStateDescriptor(0, "*AUTOSAVE*", ""));
+
+	// Prepare the list of savestates by looping over all matching savefiles
+	for (Common::StringList::const_iterator file = filenames.begin(); file != filenames.end(); file++) {
+		// Extract the extension
+		Common::String ext = file->c_str() + file->size() - 3;
+		ext.toUppercase();
+		if (isdigit(ext[0]) && isdigit(ext[1]) && isdigit(ext[2])){
+			int slotNum = atoi(ext.c_str());
+			Common::InSaveFile *in = saveFileMan->openForLoading(file->c_str());
+			if (in) {
+				saveList.push_back(SaveStateDescriptor(slotNum+1, savenames[slotNum], *file));
+				delete in;
+			}
+		}
+	}
+
+	return saveList;
+}
+
 REGISTER_PLUGIN(SKY, PLUGIN_TYPE_ENGINE, SkyMetaEngine);
 
 namespace Sky {