3 files changed, 32 insertions, 2 deletions

diff --git a/engines/hdb/gfx.cpp b/engines/hdb/gfx.cpp
index 19109c368c..94b8922293 100644
--- a/engines/hdb/gfx.cpp
+++ b/engines/hdb/gfx.cpp
@@ -406,7 +406,7 @@ Tile *Gfx::getTile(int index) {
 }
 
 void Gfx::emptyGfxCaches() {
-	warning("STUB: mptyGfxCaches()");
+	// We have plenty of memory, so do not do it
 }
 
 void Gfx::cacheTileSequence(int tileIndex, int count) {
@@ -510,6 +510,15 @@ Tile *Gfx::getTileGfx(const char *name, int32 size) {
 	return gc->tileGfx;
 }
 
+void Gfx::markGfxCacheFreeable() {
+	for (Common::Array<GfxCache *>::iterator it = _gfxCache->begin(); it != _gfxCache->end(); it++)
+		(*it)->loaded = -1;
+}
+
+void Gfx::markTileCacheFreeable() {
+	// we have plenty of memory, so do not do it
+}
+
 Picture *Gfx::getPicGfx(const char *name, int32 size) {
 	// Try to find graphic
 	for (Common::Array<GfxCache *>::iterator it = _gfxCache->begin(); it != _gfxCache->end(); it++) {
diff --git a/engines/hdb/gfx.h b/engines/hdb/gfx.h
index 36204c59f9..59d44fb39a 100644
--- a/engines/hdb/gfx.h
+++ b/engines/hdb/gfx.h
@@ -122,6 +122,8 @@ public:
 	Picture *getPicture(const char *name);
 
 	void emptyGfxCaches();
+	void markTileCacheFreeable();
+	void markGfxCacheFreeable();
 
 	// Returns: true->Tile, false->Pic
 	bool selectGfxType(const char *name);
diff --git a/engines/hdb/map.cpp b/engines/hdb/map.cpp
index 5f76a0dacb..8f53524cb8 100644
--- a/engines/hdb/map.cpp
+++ b/engines/hdb/map.cpp
@@ -217,7 +217,22 @@ int Map::loadTiles() {
 }
 
 void Map::restartSystem() {
-	warning("STUB: Map::restartSystem()");
+	_listBGAnimFast.clear();
+	_listBGAnimMedium.clear();
+	_listBGAnimSlow.clear();
+	_listFGAnimFast.clear();
+	_listFGAnimMedium.clear();
+	_listFGAnimSlow.clear();
+
+	delete _background;
+	_background = NULL;
+	delete _foreground;
+	_foreground = NULL;
+	delete _iconList;
+	_iconList = NULL;
+
+	_width = _height = 0;
+	_animCycle = 0;
 
 	free(_mapExplosions);
 	free(_mapExpBarrels);
@@ -227,6 +242,10 @@ void Map::restartSystem() {
 	_mapExpBarrels = NULL;
 	_mapLaserBeams = NULL;
 
+	// mark all in-memory tiles as being in memory, but able to be freed
+	g_hdb->_gfx->markTileCacheFreeable();
+	g_hdb->_gfx->markGfxCacheFreeable();
+
 	_mapLoaded = false;
 }