Clean up nodedef.cpp

2014-10-03 03:16:43 -04:00 · 2014-10-03 03:16:43 -04:00 · 01ce57ade5
parent 5baf379f40
commit 01ce57ade5
1 changed files with 583 additions and 561 deletions
--- a/src/nodedef.cpp
+++ b/src/nodedef.cpp
@ -370,11 +370,68 @@ void ContentFeatures::deSerialize(std::istream &is)
 	CNodeDefManager
 */

-class CNodeDefManager: public IWritableNodeDefManager
-{
+class CNodeDefManager: public IWritableNodeDefManager {
 public:
-	void clear()
-	{
+	CNodeDefManager();
+	virtual ~CNodeDefManager();
+	void clear();
+	virtual IWritableNodeDefManager *clone();
+	virtual const ContentFeatures& get(content_t c) const;
+	virtual const ContentFeatures& get(const MapNode &n) const;
+	virtual bool getId(const std::string &name, content_t &result) const;
+	virtual content_t getId(const std::string &name) const;
+	virtual void getIds(const std::string &name, std::set<content_t> &result) const;
+	virtual const ContentFeatures& get(const std::string &name) const;
+	content_t allocateId();
+	virtual content_t set(const std::string &name, const ContentFeatures &def);
+	virtual content_t allocateDummy(const std::string &name);
+	virtual void updateAliases(IItemDefManager *idef);
+	virtual void updateTextures(ITextureSource *tsrc, IShaderSource *shdsrc);
+	void serialize(std::ostream &os, u16 protocol_version);
+	void deSerialize(std::istream &is);
+
+private:
+	void addNameIdMapping(content_t i, std::string name);
+#ifndef SERVER
+	void fillTileAttribs(ITextureSource *tsrc, TileSpec *tile, TileDef *tiledef,
+		u32 shader_id, bool use_normal_texture, u8 alpha, u8 material_type);
+#endif
+
+	// Features indexed by id
+	std::vector<ContentFeatures> m_content_features;
+
+	// A mapping for fast converting back and forth between names and ids
+	NameIdMapping m_name_id_mapping;
+
+	// Like m_name_id_mapping, but only from names to ids, and includes
+	// item aliases too. Updated by updateAliases()
+	// Note: Not serialized.
+
+	std::map<std::string, content_t> m_name_id_mapping_with_aliases;
+
+	// A mapping from groups to a list of content_ts (and their levels)
+	// that belong to it.  Necessary for a direct lookup in getIds().
+	// Note: Not serialized.
+	std::map<std::string, GroupItems> m_group_to_items;
+
+	// Next possibly free id
+	content_t m_next_id;
+};
+
+
+CNodeDefManager::CNodeDefManager()
+{
+	clear();
+}
+
+
+CNodeDefManager::~CNodeDefManager()
+{
+}
+
+
+void CNodeDefManager::clear()
+{
 	m_content_features.clear();
 	m_name_id_mapping.clear();
 	m_name_id_mapping_with_aliases.clear();
@ -434,51 +491,56 @@ public:
 		m_content_features[c] = f;
 		addNameIdMapping(c, f.name);
 	}
-	}
-	CNodeDefManager()
-	{
-		clear();
-	}
-	virtual ~CNodeDefManager()
-	{
-	}
-	virtual IWritableNodeDefManager* clone()
-	{
+}
+
+
+IWritableNodeDefManager *CNodeDefManager::clone()
+{
 	CNodeDefManager *mgr = new CNodeDefManager();
 	*mgr = *this;
 	return mgr;
-	}
-	virtual const ContentFeatures& get(content_t c) const
-	{
-		if(c < m_content_features.size())
+}
+
+
+const ContentFeatures& CNodeDefManager::get(content_t c) const
+{
+	if (c < m_content_features.size())
 		return m_content_features[c];
 	else
 		return m_content_features[CONTENT_UNKNOWN];
-	}
-	virtual const ContentFeatures& get(const MapNode &n) const
-	{
+}
+
+
+const ContentFeatures& CNodeDefManager::get(const MapNode &n) const
+{
 	return get(n.getContent());
-	}
-	virtual bool getId(const std::string &name, content_t &result) const
-	{
+}
+
+
+bool CNodeDefManager::getId(const std::string &name, content_t &result) const
+{
 	std::map<std::string, content_t>::const_iterator
 		i = m_name_id_mapping_with_aliases.find(name);
 	if(i == m_name_id_mapping_with_aliases.end())
 		return false;
 	result = i->second;
 	return true;
-	}
-	virtual content_t getId(const std::string &name) const
-	{
+}
+
+
+content_t CNodeDefManager::getId(const std::string &name) const
+{
 	content_t id = CONTENT_IGNORE;
 	getId(name, id);
 	return id;
-	}
-	virtual void getIds(const std::string &name, std::set<content_t> &result)
+}
+
+
+void CNodeDefManager::getIds(const std::string &name, std::set<content_t> &result)
 		const
-	{
+{
 	//TimeTaker t("getIds", NULL, PRECISION_MICRO);
-		if(name.substr(0,6) != "group:"){
+	if (name.substr(0,6) != "group:") {
 		content_t id = CONTENT_IGNORE;
 		if(getId(name, id))
 			result.insert(id);
@ -498,24 +560,28 @@ public:
 			result.insert((*j).first);
 	}
 	//printf("getIds: %dus\n", t.stop());
-	}
-	virtual const ContentFeatures& get(const std::string &name) const
-	{
+}
+
+
+const ContentFeatures& CNodeDefManager::get(const std::string &name) const
+{
 	content_t id = CONTENT_UNKNOWN;
 	getId(name, id);
 	return get(id);
-	}
-	// returns CONTENT_IGNORE if no free ID found
-	content_t allocateId()
-	{
-		for(content_t id = m_next_id;
+}
+
+
+// returns CONTENT_IGNORE if no free ID found
+content_t CNodeDefManager::allocateId()
+{
+	for (content_t id = m_next_id;
 			id >= m_next_id; // overflow?
-				++id){
-			while(id >= m_content_features.size()){
+			++id) {
+		while (id >= m_content_features.size()) {
 			m_content_features.push_back(ContentFeatures());
 		}
 		const ContentFeatures &f = m_content_features[id];
-			if(f.name == ""){
+		if (f.name == "") {
 			m_next_id = id + 1;
 			return id;
 		}
@ -523,37 +589,37 @@ public:
 	// If we arrive here, an overflow occurred in id.
 	// That means no ID was found
 	return CONTENT_IGNORE;
-	}
-	// IWritableNodeDefManager
-	virtual content_t set(const std::string &name,
-			const ContentFeatures &def)
-	{
+}
+
+
+// IWritableNodeDefManager
+content_t CNodeDefManager::set(const std::string &name, const ContentFeatures &def)
+{
 	assert(name != "");
 	assert(name == def.name);

 	// Don't allow redefining ignore (but allow air and unknown)
-		if(name == "ignore"){
-			infostream<<"NodeDefManager: WARNING: Ignoring "
-					<<"CONTENT_IGNORE redefinition"<<std::endl;
+	if (name == "ignore") {
+		infostream << "NodeDefManager: WARNING: Ignoring "
+			"CONTENT_IGNORE redefinition"<<std::endl;
 		return CONTENT_IGNORE;
 	}

 	content_t id = CONTENT_IGNORE;
-		bool found = m_name_id_mapping.getId(name, id);  // ignore aliases
-		if(!found){
+	if (!m_name_id_mapping.getId(name, id)) { // ignore aliases
 		// Get new id
 		id = allocateId();
-			if(id == CONTENT_IGNORE){
-				infostream<<"NodeDefManager: WARNING: Absolute "
-						<<"limit reached"<<std::endl;
+		if (id == CONTENT_IGNORE) {
+			infostream << "NodeDefManager: WARNING: Absolute "
+				"limit reached" << std::endl;
 			return CONTENT_IGNORE;
 		}
 		assert(id != CONTENT_IGNORE);
 		addNameIdMapping(id, name);
 	}
 	m_content_features[id] = def;
-		verbosestream<<"NodeDefManager: registering content id \""<<id
-				<<"\": name=\""<<def.name<<"\""<<std::endl;
+	verbosestream << "NodeDefManager: registering content id \"" << id
+		<< "\": name=\"" << def.name << "\""<<std::endl;

 	// Add this content to the list of all groups it belongs to
 	// FIXME: This should remove a node from groups it no longer
@ -573,37 +639,40 @@ public:
 		}
 	}
 	return id;
-	}
-	virtual content_t allocateDummy(const std::string &name)
-	{
+}
+
+
+content_t CNodeDefManager::allocateDummy(const std::string &name)
+{
 	assert(name != "");
 	ContentFeatures f;
 	f.name = name;
 	return set(name, f);
-	}
-	virtual void updateAliases(IItemDefManager *idef)
-	{
+}
+
+
+void CNodeDefManager::updateAliases(IItemDefManager *idef)
+{
 	std::set<std::string> all = idef->getAll();
 	m_name_id_mapping_with_aliases.clear();
-		for(std::set<std::string>::iterator
-				i = all.begin(); i != all.end(); i++)
-		{
+	for (std::set<std::string>::iterator
+			i = all.begin(); i != all.end(); i++) {
 		std::string name = *i;
 		std::string convert_to = idef->getAlias(name);
 		content_t id;
-			if(m_name_id_mapping.getId(convert_to, id))
-			{
+		if (m_name_id_mapping.getId(convert_to, id)) {
 			m_name_id_mapping_with_aliases.insert(
 					std::make_pair(name, id));
 		}
 	}
-	}
-	virtual void updateTextures(ITextureSource *tsrc,
-		IShaderSource *shdsrc)
-	{
+}
+
+
+void CNodeDefManager::updateTextures(ITextureSource *tsrc, IShaderSource *shdsrc)
+{
 #ifndef SERVER
-		infostream<<"CNodeDefManager::updateTextures(): Updating "
-				<<"textures in node definitions"<<std::endl;
+	infostream << "CNodeDefManager::updateTextures(): Updating "
+		"textures in node definitions" << std::endl;

 	bool new_style_water           = g_settings->getBool("new_style_water");
 	bool new_style_leaves          = g_settings->getBool("new_style_leaves");
@ -613,26 +682,27 @@ public:
 	bool enable_bumpmapping        = g_settings->getBool("enable_bumpmapping");
 	bool enable_parallax_occlusion = g_settings->getBool("enable_parallax_occlusion");

-		for(u32 i=0; i<m_content_features.size(); i++)
-		{
+	bool use_normal_texture = enable_shaders &&
+		(enable_bumpmapping || enable_parallax_occlusion);
+
+	for (u32 i = 0; i < m_content_features.size(); i++) {
 		ContentFeatures *f = &m_content_features[i];

 		// Figure out the actual tiles to use
 		TileDef tiledef[6];
-			for(u32 j = 0; j < 6; j++)
-			{
+		for (u32 j = 0; j < 6; j++) {
 			tiledef[j] = f->tiledef[j];
-				if(tiledef[j].name == "")
+			if (tiledef[j].name == "")
 				tiledef[j].name = "unknown_node.png";
 		}

 		bool is_liquid = false;
 		bool is_water_surface = false;

-			u8 material_type;
-			material_type = (f->alpha == 255) ? TILE_MATERIAL_BASIC : TILE_MATERIAL_ALPHA;
+		u8 material_type = (f->alpha == 255) ?
+			TILE_MATERIAL_BASIC : TILE_MATERIAL_ALPHA;

-			switch(f->drawtype){
+		switch (f->drawtype) {
 		default:
 		case NDT_NORMAL:
 			f->solidness = 2;
@ -642,9 +712,9 @@ public:
 			break;
 		case NDT_LIQUID:
 			assert(f->liquid_type == LIQUID_SOURCE);
-				if(opaque_water)
+			if (opaque_water)
 				f->alpha = 255;
-				if(new_style_water){
+			if (new_style_water){
 				f->solidness = 0;
 			} else {
 				f->solidness = 1;
@ -655,7 +725,7 @@ public:
 		case NDT_FLOWINGLIQUID:
 			assert(f->liquid_type == LIQUID_FLOWING);
 			f->solidness = 0;
-				if(opaque_water)
+			if (opaque_water)
 				f->alpha = 255;
 			is_liquid = true;
 			break;
@ -670,28 +740,23 @@ public:
 		case NDT_GLASSLIKE_FRAMED_OPTIONAL:
 			f->solidness = 0;
 			f->visual_solidness = 1;
-				if (connected_glass) {
-					f->drawtype = NDT_GLASSLIKE_FRAMED;
-				} else {
-					f->drawtype = NDT_GLASSLIKE;
-				}
+			f->drawtype = connected_glass ? NDT_GLASSLIKE_FRAMED : NDT_GLASSLIKE;
 			break;
 		case NDT_ALLFACES:
 			f->solidness = 0;
 			f->visual_solidness = 1;
 			break;
 		case NDT_ALLFACES_OPTIONAL:
-				if(new_style_leaves){
+			if (new_style_leaves) {
 				f->drawtype = NDT_ALLFACES;
 				f->solidness = 0;
 				f->visual_solidness = 1;
 			} else {
 				f->drawtype = NDT_NORMAL;
 				f->solidness = 2;
-					for(u32 i=0; i<6; i++){
+				for (u32 i = 0; i < 6; i++)
 					tiledef[i].name += std::string("^[noalpha");
 			}
-				}
 			if (f->waving == 1)
 				material_type = TILE_MATERIAL_WAVING_LEAVES;
 			break;
@ -712,135 +777,107 @@ public:
 			break;
 		}

-			if (is_liquid){
-				material_type = (f->alpha == 255) ? TILE_MATERIAL_LIQUID_OPAQUE : TILE_MATERIAL_LIQUID_TRANSPARENT;
+		if (is_liquid) {
+			material_type = (f->alpha == 255) ?
+				TILE_MATERIAL_LIQUID_OPAQUE : TILE_MATERIAL_LIQUID_TRANSPARENT;
 			if (f->name == "default:water_source")
 				is_water_surface = true;
 		}
-			u32 tile_shader[6];
-			for(u16 j=0; j<6; j++)
-				tile_shader[j] = shdsrc->getShader("nodes_shader",material_type, f->drawtype);

-			if (is_water_surface)
-				tile_shader[0] = shdsrc->getShader("water_surface_shader",material_type, f->drawtype);
+		u32 tile_shader[6];
+		for (u16 j = 0; j < 6; j++) {
+			tile_shader[j] = shdsrc->getShader("nodes_shader",
+				material_type, f->drawtype);
+		}
+
+		if (is_water_surface) {
+			tile_shader[0] = shdsrc->getShader("water_surface_shader",
+				material_type, f->drawtype);
+		}

 		// Tiles (fill in f->tiles[])
-			for(u16 j = 0; j < 6; j++){
-				// Shader
-				f->tiles[j].shader_id = tile_shader[j];
-				// Texture
-				f->tiles[j].texture = tsrc->getTexture(
-						tiledef[j].name,
-						&f->tiles[j].texture_id);
-				// Normal texture
-				if (enable_shaders && (enable_bumpmapping || enable_parallax_occlusion))
-					f->tiles[j].normal_texture = tsrc->getNormalTexture(tiledef[j].name);
-				// Alpha
-				f->tiles[j].alpha = f->alpha;
-				// Material type
-				f->tiles[j].material_type = material_type;
-				// Material flags
-				f->tiles[j].material_flags = 0;
-				if(f->backface_culling)
-					f->tiles[j].material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
-				if(tiledef[j].animation.type == TAT_VERTICAL_FRAMES)
-					f->tiles[j].material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
-				// Animation parameters
-				int frame_count = 1;
-				if(f->tiles[j].material_flags &	MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES) {
-					// Get texture size to determine frame count by
-					// aspect ratio
-					v2u32 size = f->tiles[j].texture->getOriginalSize();
-					int frame_height = (float)size.X /
-							(float)tiledef[j].animation.aspect_w *
-							(float)tiledef[j].animation.aspect_h;
-					frame_count = size.Y / frame_height;
-					int frame_length_ms = 1000.0 *
-							tiledef[j].animation.length / frame_count;
-					f->tiles[j].animation_frame_count = frame_count;
-					f->tiles[j].animation_frame_length_ms = frame_length_ms;
-				}
-				if(frame_count == 1) {
-					f->tiles[j].material_flags &= ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
-				} else {
-					std::ostringstream os(std::ios::binary);
-					for (int i = 0; i < frame_count; i++) {
-						FrameSpec frame;
-						os.str("");
-						os<<tiledef[j].name<<"^[verticalframe:"<<frame_count<<":"<<i;
-						frame.texture = tsrc->getTexture(os.str(), &frame.texture_id);
-						if (f->tiles[j].normal_texture)
-							frame.normal_texture = tsrc->getNormalTexture(os.str());
-						f->tiles[j].frames[i]=frame;
-					}
-				}
+		for (u16 j = 0; j < 6; j++) {
+			fillTileAttribs(tsrc, &f->tiles[j], &tiledef[j], tile_shader[j],
+				use_normal_texture, f->alpha, material_type);
 		}
+
 		// Special tiles (fill in f->special_tiles[])
-			for(u16 j=0; j<CF_SPECIAL_COUNT; j++){
-				// Shader
-				f->special_tiles[j].shader_id = tile_shader[j];
-				// Texture
-				f->special_tiles[j].texture = tsrc->getTexture(
-						f->tiledef_special[j].name,
-						&f->special_tiles[j].texture_id);
-				// Normal texture
-				if (enable_shaders && (enable_bumpmapping || enable_parallax_occlusion))
-					f->special_tiles[j].normal_texture = tsrc->getNormalTexture(f->tiledef_special[j].name);
-				// Alpha
-				f->special_tiles[j].alpha = f->alpha;
-				// Material type
-				f->special_tiles[j].material_type = material_type;
-				// Material flags
-				f->special_tiles[j].material_flags = 0;
-				if(f->tiledef_special[j].backface_culling)
-					f->special_tiles[j].material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
-				if(f->tiledef_special[j].animation.type == TAT_VERTICAL_FRAMES)
-					f->special_tiles[j].material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
-				// Animation parameters
-				int frame_count = 1;
-				if(f->special_tiles[j].material_flags &	MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES) {
-					// Get texture size to determine frame count by
-					// aspect ratio
-					v2u32 size = f->special_tiles[j].texture->getOriginalSize();
-					int frame_height = (float)size.X /
-							(float)f->tiledef_special[j].animation.aspect_w *
-							(float)f->tiledef_special[j].animation.aspect_h;
-					frame_count = size.Y / frame_height;
-					int frame_length_ms = 1000.0 *
-							f->tiledef_special[j].animation.length / frame_count;
-					f->special_tiles[j].animation_frame_count = frame_count;
-					f->special_tiles[j].animation_frame_length_ms = frame_length_ms;
-				}
-				if(frame_count == 1) {
-					f->special_tiles[j].material_flags &= ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
-				} else {
-					std::ostringstream os(std::ios::binary);
-					for (int i = 0; i < frame_count; i++) {
-						FrameSpec frame;
-						os.str("");
-						os<<f->tiledef_special[j].name<<"^[verticalframe:"<<frame_count<<":"<<i;
-						frame.texture = tsrc->getTexture(os.str(), &frame.texture_id);
-						if (f->special_tiles[j].normal_texture)
-							frame.normal_texture = tsrc->getNormalTexture(os.str());
-						f->special_tiles[j].frames[i]=frame;
-					}
-				}
+		for (u16 j = 0; j < CF_SPECIAL_COUNT; j++) {
+			fillTileAttribs(tsrc, &f->special_tiles[j], &f->tiledef_special[j],
+				tile_shader[j], use_normal_texture, f->alpha, material_type);
 		}
 	}
 #endif
+}
+
+
+#ifndef SERVER
+void CNodeDefManager::fillTileAttribs(ITextureSource *tsrc, TileSpec *tile,
+		TileDef *tiledef, u32 shader_id, bool use_normal_texture,
+		u8 alpha, u8 material_type)
+{
+	tile->shader_id     = shader_id;
+	tile->texture       = tsrc->getTexture(tiledef->name, &tile->texture_id);
+	tile->alpha         = alpha;
+	tile->material_type = material_type;
+
+	// Normal texture
+	if (use_normal_texture)
+		tile->normal_texture = tsrc->getNormalTexture(tiledef->name);
+
+	// Material flags
+	tile->material_flags = 0;
+	if (tiledef->backface_culling)
+		tile->material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
+	if (tiledef->animation.type == TAT_VERTICAL_FRAMES)
+		tile->material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
+
+	// Animation parameters
+	int frame_count = 1;
+	if (tile->material_flags & MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES) {
+		// Get texture size to determine frame count by aspect ratio
+		v2u32 size = tile->texture->getOriginalSize();
+		int frame_height = (float)size.X /
+				(float)tiledef->animation.aspect_w *
+				(float)tiledef->animation.aspect_h;
+		frame_count = size.Y / frame_height;
+		int frame_length_ms = 1000.0 * tiledef->animation.length / frame_count;
+		tile->animation_frame_count = frame_count;
+		tile->animation_frame_length_ms = frame_length_ms;
 	}
-	void serialize(std::ostream &os, u16 protocol_version)
-	{
+
+	if (frame_count == 1) {
+		tile->material_flags &= ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
+	} else {
+		std::ostringstream os(std::ios::binary);
+		for (int i = 0; i < frame_count; i++) {
+			FrameSpec frame;
+
+			os.str("");
+			os << tiledef->name << "^[verticalframe:"
+				<< frame_count << ":" << i;
+
+			frame.texture = tsrc->getTexture(os.str(), &frame.texture_id);
+			if (tile->normal_texture)
+				frame.normal_texture = tsrc->getNormalTexture(os.str());
+			tile->frames[i] = frame;
+		}
+	}
+}
+#endif
+
+
+void CNodeDefManager::serialize(std::ostream &os, u16 protocol_version)
+{
 	writeU8(os, 1); // version
 	u16 count = 0;
 	std::ostringstream os2(std::ios::binary);
-		for(u32 i = 0; i < m_content_features.size(); i++)
-		{
-			if(i == CONTENT_IGNORE || i == CONTENT_AIR
+	for (u32 i = 0; i < m_content_features.size(); i++) {
+		if (i == CONTENT_IGNORE || i == CONTENT_AIR
 				|| i == CONTENT_UNKNOWN)
 			continue;
 		ContentFeatures *f = &m_content_features[i];
-			if(f->name == "")
+		if (f->name == "")
 			continue;
 		writeU16(os2, i);
 		// Wrap it in a string to allow different lengths without
@ -853,18 +890,20 @@ public:
 		count++;
 	}
 	writeU16(os, count);
-		os<<serializeLongString(os2.str());
-	}
-	void deSerialize(std::istream &is)
-	{
+	os << serializeLongString(os2.str());
+}
+
+
+void CNodeDefManager::deSerialize(std::istream &is)
+{
 	clear();
 	int version = readU8(is);
-		if(version != 1)
+	if (version != 1)
 		throw SerializationError("unsupported NodeDefinitionManager version");
 	u16 count = readU16(is);
 	std::istringstream is2(deSerializeLongString(is), std::ios::binary);
 	ContentFeatures f;
-		for(u16 n = 0; n < count; n++){
+	for (u16 n = 0; n < count; n++) {
 		u16 i = readU16(is2);

 		// Read it from the string wrapper
@ -873,89 +912,70 @@ public:
 		f.deSerialize(wrapper_is);

 		// Check error conditions
-			if(i == CONTENT_IGNORE || i == CONTENT_AIR
-					|| i == CONTENT_UNKNOWN){
-				infostream<<"NodeDefManager::deSerialize(): WARNING: "
-					<<"not changing builtin node "<<i
-					<<std::endl;
+		if (i == CONTENT_IGNORE || i == CONTENT_AIR || i == CONTENT_UNKNOWN) {
+			infostream << "NodeDefManager::deSerialize(): WARNING: "
+				"not changing builtin node " << i << std::endl;
 			continue;
 		}
-			if(f.name == ""){
-				infostream<<"NodeDefManager::deSerialize(): WARNING: "
-					<<"received empty name"<<std::endl;
+		if (f.name == "") {
+			infostream << "NodeDefManager::deSerialize(): WARNING: "
+				"received empty name" << std::endl;
 			continue;
 		}
+
+		// Ignore aliases
 		u16 existing_id;
-			bool found = m_name_id_mapping.getId(f.name, existing_id);  // ignore aliases
-			if(found && i != existing_id){
-				infostream<<"NodeDefManager::deSerialize(): WARNING: "
-					<<"already defined with different ID: "
-					<<f.name<<std::endl;
+		if (m_name_id_mapping.getId(f.name, existing_id) && i != existing_id) {
+			infostream << "NodeDefManager::deSerialize(): WARNING: "
+				"already defined with different ID: " << f.name << std::endl;
 			continue;
 		}

 		// All is ok, add node definition with the requested ID
-			if(i >= m_content_features.size())
+		if (i >= m_content_features.size())
 			m_content_features.resize((u32)(i) + 1);
 		m_content_features[i] = f;
 		addNameIdMapping(i, f.name);
-			verbosestream<<"deserialized "<<f.name<<std::endl;
+		verbosestream << "deserialized " << f.name << std::endl;
 	}
-	}
-private:
-	void addNameIdMapping(content_t i, std::string name)
-	{
+}
+
+
+void CNodeDefManager::addNameIdMapping(content_t i, std::string name)
+{
 	m_name_id_mapping.set(i, name);
 	m_name_id_mapping_with_aliases.insert(std::make_pair(name, i));
-	}
-private:
-	// Features indexed by id
-	std::vector<ContentFeatures> m_content_features;
-	// A mapping for fast converting back and forth between names and ids
-	NameIdMapping m_name_id_mapping;
-	// Like m_name_id_mapping, but only from names to ids, and includes
-	// item aliases too. Updated by updateAliases()
-	// Note: Not serialized.
-	std::map<std::string, content_t> m_name_id_mapping_with_aliases;
-	// A mapping from groups to a list of content_ts (and their levels)
-	// that belong to it.  Necessary for a direct lookup in getIds().
-	// Note: Not serialized.
-	std::map<std::string, GroupItems> m_group_to_items;
-	// Next possibly free id
-	content_t m_next_id;
-};
+}

-IWritableNodeDefManager* createNodeDefManager()
+
+IWritableNodeDefManager *createNodeDefManager()
 {
 	return new CNodeDefManager();
 }

-/*
-	Serialization of old ContentFeatures formats
-*/

+//// Serialization of old ContentFeatures formats
 void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version)
 {
-	if(protocol_version == 13)
+	if (protocol_version == 13)
 	{
 		writeU8(os, 5); // version
 		os<<serializeString(name);
 		writeU16(os, groups.size());
-		for(ItemGroupList::const_iterator
-				i = groups.begin(); i != groups.end(); i++){
+		for (ItemGroupList::const_iterator
+				i = groups.begin(); i != groups.end(); i++) {
 			os<<serializeString(i->first);
 			writeS16(os, i->second);
 		}
 		writeU8(os, drawtype);
 		writeF1000(os, visual_scale);
 		writeU8(os, 6);
-		for(u32 i = 0; i < 6; i++)
+		for (u32 i = 0; i < 6; i++)
 			tiledef[i].serialize(os, protocol_version);
 		//CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
 		writeU8(os, 2);
-		for(u32 i = 0; i < 2; i++){
+		for (u32 i = 0; i < 2; i++)
 			tiledef_special[i].serialize(os, protocol_version);
-		}
 		writeU8(os, alpha);
 		writeU8(os, post_effect_color.getAlpha());
 		writeU8(os, post_effect_color.getRed());
@ -990,21 +1010,20 @@ void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version)
 		writeU8(os, 6); // version
 		os<<serializeString(name);
 		writeU16(os, groups.size());
-		for(ItemGroupList::const_iterator
-			i = groups.begin(); i != groups.end(); i++){
+		for (ItemGroupList::const_iterator
+			i = groups.begin(); i != groups.end(); i++) {
 				os<<serializeString(i->first);
 				writeS16(os, i->second);
 		}
 		writeU8(os, drawtype);
 		writeF1000(os, visual_scale);
 		writeU8(os, 6);
-		for(u32 i = 0; i < 6; i++)
+		for (u32 i = 0; i < 6; i++)
 			tiledef[i].serialize(os, protocol_version);
 		//CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
 		writeU8(os, 2);
-		for(u32 i = 0; i < 2; i++){
+		for (u32 i = 0; i < 2; i++)
 			tiledef_special[i].serialize(os, protocol_version);
-		}
 		writeU8(os, alpha);
 		writeU8(os, post_effect_color.getAlpha());
 		writeU8(os, post_effect_color.getRed());
@ -1040,12 +1059,14 @@ void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version)
 		writeU8(os, leveled);
 		writeU8(os, liquid_range);
 	} else 
-		throw SerializationError("ContentFeatures::serialize(): Unsupported version requested");
+		throw SerializationError("ContentFeatures::serialize(): "
+			"Unsupported version requested");
 }

+
 void ContentFeatures::deSerializeOld(std::istream &is, int version)
 {
-	if(version == 5) // In PROTOCOL_VERSION 13
+	if (version == 5) // In PROTOCOL_VERSION 13
 	{
 		name = deSerializeString(is);
 		groups.clear();
@ -1057,13 +1078,13 @@ void ContentFeatures::deSerializeOld(std::istream &is, int version)
 		}
 		drawtype = (enum NodeDrawType)readU8(is);
 		visual_scale = readF1000(is);
-		if(readU8(is) != 6)
+		if (readU8(is) != 6)
 			throw SerializationError("unsupported tile count");
-		for(u32 i=0; i<6; i++)
+		for (u32 i = 0; i < 6; i++)
 			tiledef[i].deSerialize(is);
-		if(readU8(is) != CF_SPECIAL_COUNT)
+		if (readU8(is) != CF_SPECIAL_COUNT)
 			throw SerializationError("unsupported CF_SPECIAL_COUNT");
-		for(u32 i=0; i<CF_SPECIAL_COUNT; i++)
+		for (u32 i = 0; i < CF_SPECIAL_COUNT; i++)
 			tiledef_special[i].deSerialize(is);
 		alpha = readU8(is);
 		post_effect_color.setAlpha(readU8(is));
@ -1098,21 +1119,21 @@ void ContentFeatures::deSerializeOld(std::istream &is, int version)
 		name = deSerializeString(is);
 		groups.clear();
 		u32 groups_size = readU16(is);
-		for(u32 i=0; i<groups_size; i++){
+		for (u32 i = 0; i < groups_size; i++) {
 			std::string name = deSerializeString(is);
 			int	value = readS16(is);
 			groups[name] = value;
 		}
 		drawtype = (enum NodeDrawType)readU8(is);
 		visual_scale = readF1000(is);
-		if(readU8(is) != 6)
+		if (readU8(is) != 6)
 			throw SerializationError("unsupported tile count");
-		for(u32 i=0; i<6; i++)
+		for (u32 i = 0; i < 6; i++)
 			tiledef[i].deSerialize(is);
 		// CF_SPECIAL_COUNT in version 6 = 2
-		if(readU8(is) != 2)
+		if (readU8(is) != 2)
 			throw SerializationError("unsupported CF_SPECIAL_COUNT");
-		for(u32 i=0; i<2; i++)
+		for (u32 i = 0; i < 2; i++)
 			tiledef_special[i].deSerialize(is);
 		alpha = readU8(is);
 		post_effect_color.setAlpha(readU8(is));
@ -1148,6 +1169,7 @@ void ContentFeatures::deSerializeOld(std::istream &is, int version)
 		drowning = readU8(is);
 		leveled = readU8(is);
 		liquid_range = readU8(is);
-	} else
+	} else {
 		throw SerializationError("unsupported ContentFeatures version");
+	}
 }