C++ deSerializeString函数代码示例

void ContentFeatures::deSerialize(std::istream &is)
{
	int version = readU8(is);
	if(version != 5)
		throw SerializationError("unsupported ContentFeatures version");
	name = deSerializeString(is);
	groups.clear();
	u32 groups_size = readU16(is);
	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)
		throw SerializationError("unsupported tile count");
	for(u32 i=0; i<6; i++)
		tiledef[i].deSerialize(is);
	if(readU8(is) != CF_SPECIAL_COUNT)
		throw SerializationError("unsupported CF_SPECIAL_COUNT");
	for(u32 i=0; i<CF_SPECIAL_COUNT; i++)
		tiledef_special[i].deSerialize(is);
	alpha = readU8(is);
	post_effect_color.setAlpha(readU8(is));
	post_effect_color.setRed(readU8(is));
	post_effect_color.setGreen(readU8(is));
	post_effect_color.setBlue(readU8(is));
	param_type = (enum ContentParamType)readU8(is);
	param_type_2 = (enum ContentParamType2)readU8(is);
	is_ground_content = readU8(is);
	light_propagates = readU8(is);
	sunlight_propagates = readU8(is);
	walkable = readU8(is);
	pointable = readU8(is);
	diggable = readU8(is);
	climbable = readU8(is);
	buildable_to = readU8(is);
	deSerializeString(is); // legacy: used to be metadata_name
	liquid_type = (enum LiquidType)readU8(is);
	liquid_alternative_flowing = deSerializeString(is);
	liquid_alternative_source = deSerializeString(is);
	liquid_viscosity = readU8(is);
	light_source = readU8(is);
	damage_per_second = readU32(is);
	node_box.deSerialize(is);
	selection_box.deSerialize(is);
	legacy_facedir_simple = readU8(is);
	legacy_wallmounted = readU8(is);
	deSerializeSimpleSoundSpec(sound_footstep, is);
	deSerializeSimpleSoundSpec(sound_dig, is);
	deSerializeSimpleSoundSpec(sound_dug, is);
	// If you add anything here, insert it primarily inside the try-catch
	// block to not need to increase the version.
	try{
		// Stuff below should be moved to correct place in a version that
		// otherwise changes the protocol version
		liquid_renewable = readU8(is);
	}catch(SerializationError &e) {};
}

void ObjectProperties::deSerialize(std::istream &is)
{
	int version = readU8(is);
	if(version != 1) throw SerializationError(
			"unsupported ObjectProperties version");
	hp_max = readS16(is);
	physical = readU8(is);
	weight = readF1000(is);
	collisionbox.MinEdge = readV3F1000(is);
	collisionbox.MaxEdge = readV3F1000(is);
	visual = deSerializeString(is);
	visual_size = readV2F1000(is);
	textures.clear();
	u32 texture_count = readU16(is);
	for(u32 i=0; i<texture_count; i++){
		textures.push_back(deSerializeString(is));
	}
	spritediv = readV2S16(is);
	initial_sprite_basepos = readV2S16(is);
	is_visible = readU8(is);
	makes_footstep_sound = readU8(is);
	try{
		automatic_rotate = readF1000(is);
	}catch(SerializationError &e){}
}

ServerActiveObject* FallingSAO::create(ServerEnvironment *env, v3f pos,
		const std::string &data)
{
	std::string name;
	std::string state;
	s16 hp = 1;
	v3f velocity;
	float yaw = 0;
	if(data != "") {
		std::istringstream is(data, std::ios::binary);
		// read version
		u8 version = readU8(is);
		// check if version is supported
		if(version == 0){
			name = deSerializeString(is);
			state = deSerializeLongString(is);
		}
		else if(version == 1){
			name = deSerializeString(is);
			state = deSerializeLongString(is);
			hp = readS16(is);
			velocity = readV3F1000(is);
			yaw = readF1000(is);
		}
	}
	// create object
	//infostream<<"FallingSAO::create(name='%s' state='%s')", name.c_str(), state.c_str();
	epixel::FallingSAO *sao = new epixel::FallingSAO(env, pos, name, state);
	sao->m_hp = hp;
	sao->m_velocity = velocity;
	sao->m_yaw = yaw;
	return sao;
}

	void deSerialize(std::istream &is)
	{
		// Clear everything
		clear();
		// Deserialize
		int version = readU8(is);
		if(version != 0)
			throw SerializationError("unsupported ItemDefManager version");
		u16 count = readU16(is);
		for(u16 i=0; i<count; i++)
		{
			// Deserialize a string and grab an ItemDefinition from it
			std::istringstream tmp_is(deSerializeString(is), std::ios::binary);
			ItemDefinition def;
			def.deSerialize(tmp_is);
			// Register
			registerItem(def);
		}
		u16 num_aliases = readU16(is);
		for(u16 i=0; i<num_aliases; i++)
		{
			std::string name = deSerializeString(is);
			std::string convert_to = deSerializeString(is);
			registerAlias(name, convert_to);
		}
	}

ServerActiveObject* LuaEntitySAO::create(ServerEnvironment *env, v3f pos,
		const std::string &data)
{
	std::string name;
	std::string state;
	s16 hp = 1;
	v3f velocity;
	float yaw = 0;
	if(data != ""){
		std::istringstream is(data, std::ios::binary);
		// read version
		u8 version = readU8(is);
		// check if version is supported
		if(version == 0){
			name = deSerializeString(is);
			state = deSerializeLongString(is);
		}
		else if(version == 1){
			name = deSerializeString(is);
			state = deSerializeLongString(is);
			hp = readS16(is);
			velocity = readV3F1000(is);
			yaw = readF1000(is);
		}
	}
	// create object
	infostream<<"LuaEntitySAO::create(name=\""<<name<<"\" state=\""
			<<state<<"\")"<<std::endl;
	LuaEntitySAO *sao = new LuaEntitySAO(env, pos, name, state);
	sao->m_hp = hp;
	sao->m_velocity = velocity;
	sao->m_yaw = yaw;
	return sao;
}

void ToolCapabilities::deSerialize(std::istream &is)
{
	int version = readU8(is);
	if(version != 1 && version != 2) throw SerializationError(
			"unsupported ToolCapabilities version");
	full_punch_interval = readF1000(is);
	max_drop_level = readS16(is);
	groupcaps.clear();
	u32 groupcaps_size = readU32(is);
	for(u32 i=0; i<groupcaps_size; i++){
		std::string name = deSerializeString(is);
		ToolGroupCap cap;
		cap.uses = readS16(is);
		cap.maxlevel = readS16(is);
		u32 times_size = readU32(is);
		for(u32 i=0; i<times_size; i++){
			int level = readS16(is);
			float time = readF1000(is);
			cap.times[level] = time;
		}
		groupcaps[name] = cap;
	}
	if(version == 2)
	{
		u32 damage_groups_size = readU32(is);
		for(u32 i=0; i<damage_groups_size; i++){
			std::string name = deSerializeString(is);
			s16 rating = readS16(is);
			damageGroups[name] = rating;
		}
	}
}

void CraftDefinitionCooking::deSerializeBody(std::istream &is, int version)
{
	if(version != 1) throw SerializationError(
			"unsupported CraftDefinitionCooking version");
	output = deSerializeString(is);
	recipe = deSerializeString(is);
	cooktime = readF1000(is);
	replacements.deSerialize(is);
}

void ContentFeatures::deSerializeOld(std::istream &is, int version)
{
	if(version == 5) // In PROTOCOL_VERSION 13
	{
		name = deSerializeString(is);
		groups.clear();
		u32 groups_size = readU16(is);
		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)
			throw SerializationError("unsupported tile count");
		for(u32 i=0; i<6; i++)
			tiledef[i].deSerialize(is);
		if(readU8(is) != CF_SPECIAL_COUNT)
			throw SerializationError("unsupported CF_SPECIAL_COUNT");
		for(u32 i=0; i<CF_SPECIAL_COUNT; i++)
			tiledef_special[i].deSerialize(is);
		alpha = readU8(is);
		post_effect_color.setAlpha(readU8(is));
		post_effect_color.setRed(readU8(is));
		post_effect_color.setGreen(readU8(is));
		post_effect_color.setBlue(readU8(is));
		param_type = (enum ContentParamType)readU8(is);
		param_type_2 = (enum ContentParamType2)readU8(is);
		is_ground_content = readU8(is);
		light_propagates = readU8(is);
		sunlight_propagates = readU8(is);
		walkable = readU8(is);
		pointable = readU8(is);
		diggable = readU8(is);
		climbable = readU8(is);
		buildable_to = readU8(is);
		deSerializeString(is); // legacy: used to be metadata_name
		liquid_type = (enum LiquidType)readU8(is);
		liquid_alternative_flowing = deSerializeString(is);
		liquid_alternative_source = deSerializeString(is);
		liquid_viscosity = readU8(is);
		light_source = readU8(is);
		damage_per_second = readU32(is);
		node_box.deSerialize(is);
		selection_box.deSerialize(is);
		legacy_facedir_simple = readU8(is);
		legacy_wallmounted = readU8(is);
		deSerializeSimpleSoundSpec(sound_footstep, is);
		deSerializeSimpleSoundSpec(sound_dig, is);
		deSerializeSimpleSoundSpec(sound_dug, is);
	}
	else
	{
		throw SerializationError("unsupported ContentFeatures version");
	}
}

void ItemDefinition::deSerialize(std::istream &is)
{
	// Reset everything
	reset();

	// Deserialize
	int version = readU8(is);
	if(version < 1 || version > 3)
		throw SerializationError("unsupported ItemDefinition version");
	type = (enum ItemType)readU8(is);
	name = deSerializeString(is);
	description = deSerializeString(is);
	inventory_image = deSerializeString(is);
	wield_image = deSerializeString(is);
	wield_scale = readV3F1000(is);
	stack_max = readS16(is);
	usable = readU8(is);
	liquids_pointable = readU8(is);
	std::string tool_capabilities_s = deSerializeString(is);
	if(!tool_capabilities_s.empty())
	{
		std::istringstream tmp_is(tool_capabilities_s, std::ios::binary);
		tool_capabilities = new ToolCapabilities;
		tool_capabilities->deSerialize(tmp_is);
	}
	groups.clear();
	u32 groups_size = readU16(is);
	for(u32 i=0; i<groups_size; i++){
		std::string name = deSerializeString(is);
		int value = readS16(is);
		groups[name] = value;
	}
	if(version == 1){
		// We cant be sure that node_placement_prediction is send in version 1
		try{
			node_placement_prediction = deSerializeString(is);
		}catch(SerializationError &e) {};
		// Set the old default sound
		sound_place.name = "default_place_node";
		sound_place.gain = 0.5;
	} else if(version >= 2) {
		node_placement_prediction = deSerializeString(is);
		//deserializeSimpleSoundSpec(sound_place, is);
		sound_place.name = deSerializeString(is);
		sound_place.gain = readF1000(is);
	}
	if(version == 3) {
		range = readF1000(is);
	}
	// If you add anything here, insert it primarily inside the try-catch
	// block to not need to increase the version.
	try {
		sound_place_failed.name = deSerializeString(is);
		sound_place_failed.gain = readF1000(is);
	} catch(SerializationError &e) {};
}

void CraftDefinition::deSerialize(std::istream &is)
{
	int version = readU8(is);
	if(version != 0) throw SerializationError(
			"unsupported CraftDefinition version");
	output = deSerializeString(is);
	input.width = readU8(is);
	u32 count = readU16(is);
	for(u32 i=0; i<count; i++)
		input.items.push_back(deSerializeString(is));
}

void CraftReplacements::deSerialize(std::istream &is)
{
	pairs.clear();
	u32 count = readU16(is);
	for(u32 i=0; i<count; i++)
	{
		std::string first = deSerializeString(is);
		std::string second = deSerializeString(is);
		pairs.push_back(std::make_pair(first, second));
	}
}

bool DecoSchematic::loadSchematicFile() {
	std::ifstream is(filename.c_str(), std::ios_base::binary);

	u32 signature = readU32(is);
	if (signature != MTSCHEM_FILE_SIGNATURE) {
		errorstream << "loadSchematicFile: invalid schematic "
			"file" << std::endl;
		return false;
	}
	
	u16 version = readU16(is);
	if (version != 1) {
		errorstream << "loadSchematicFile: unsupported schematic "
			"file version" << std::endl;
		return false;
	}

	size = readV3S16(is);
	int nodecount = size.X * size.Y * size.Z;
	
	u16 nidmapcount = readU16(is);
	
	node_names = new std::vector<std::string>;
	for (int i = 0; i != nidmapcount; i++) {
		std::string name = deSerializeString(is);
		node_names->push_back(name);
	}

	delete schematic;
	schematic = new MapNode[nodecount];
	MapNode::deSerializeBulk(is, SER_FMT_VER_HIGHEST, schematic,
				nodecount, 2, 2, true);
				
	return true;
}

	void deSerialize(std::istream &is)
	{
		clear();
		int version = readU8(is);
		if(version != 1)
			throw SerializationError("unsupported NodeDefinitionManager version");
		u16 count = readU16(is);
		std::istringstream is2(deSerializeLongString(is), std::ios::binary);
		for(u16 n=0; n<count; n++){
			u16 i = readU16(is2);
			if(i > MAX_CONTENT){
				errorstream<<"ContentFeatures::deSerialize(): "
						<<"Too large content id: "<<i<<std::endl;
				continue;
			}
			/*// Do not deserialize special types
			if(i == CONTENT_IGNORE || i == CONTENT_AIR)
				continue;*/
			ContentFeatures *f = &m_content_features[i];
			// Read it from the string wrapper
			std::string wrapper = deSerializeString(is2);
			std::istringstream wrapper_is(wrapper, std::ios::binary);
			f->deSerialize(wrapper_is);
			verbosestream<<"deserialized "<<f->name<<std::endl;
			if(f->name != "")
				addNameIdMapping(i, f->name);
		}
	}

void TileDef::deSerialize(std::istream &is, u8 contentfeatures_version,
	NodeDrawType drawtype)
{
	int version = readU8(is);
	if (version < 6)
		throw SerializationError("unsupported TileDef version");
	name = deSerializeString(is);
	animation.deSerialize(is, version);
	u16 flags = readU16(is);
	backface_culling = flags & TILE_FLAG_BACKFACE_CULLING;
	tileable_horizontal = flags & TILE_FLAG_TILEABLE_HORIZONTAL;
	tileable_vertical = flags & TILE_FLAG_TILEABLE_VERTICAL;
	has_color = flags & TILE_FLAG_HAS_COLOR;
	bool has_scale = flags & TILE_FLAG_HAS_SCALE;
	bool has_align_style = flags & TILE_FLAG_HAS_ALIGN_STYLE;
	if (has_color) {
		color.setRed(readU8(is));
		color.setGreen(readU8(is));
		color.setBlue(readU8(is));
	}
	scale = has_scale ? readU8(is) : 0;
	if (has_align_style)
		align_style = static_cast<AlignStyle>(readU8(is));
	else
		align_style = ALIGN_STYLE_NODE;
}

static void deSerializeSimpleSoundSpec(SimpleSoundSpec &ss,
		std::istream &is, u8 version)
{
	ss.name = deSerializeString(is);
	ss.gain = readF1000(is);
	ss.pitch = readF1000(is);
}