C++ ContentFeatures类代码示例

	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 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
					|| i == CONTENT_UNKNOWN)
				continue;
			ContentFeatures *f = &m_content_features[i];
			if(f->name == "")
				continue;
			writeU16(os2, i);
			// Wrap it in a string to allow different lengths without
			// strict version incompatibilities
			std::ostringstream wrapper_os(std::ios::binary);
			f->serialize(wrapper_os, protocol_version);
			os2<<serializeString(wrapper_os.str());

			assert(count + 1 > count); // must not overflow
			count++;
		}
		writeU16(os, count);
		os<<serializeLongString(os2.str());
	}

void content_nodedef_knob(content_t nodeid, content_t source_node, ContentMaterialType material_type, const char* texture, const std::wstring desc)
{
	ContentFeatures *features = &content_features(nodeid);
	features->description = std::wstring(desc);
	features->setAllTextures(texture);
	features->param_type = CPT_LIGHT;
	features->param2_type = CPT_FACEDIR_WALLMOUNT;
	features->draw_type = CDT_NODEBOX;
	features->is_ground_content = false;
	features->solidness = 0;
	features->light_propagates = true;
	features->dug_item = std::string("MaterialItem2 ")+itos(nodeid)+" 1";
	features->type = CMT_STONE;
	features->hardness = 0.8;
	features->climbable = true;
	features->suffocation_per_second = 0;
	if (material_type == CMT_WOOD) {
		content_t recipe[9] = {
			CONTENT_IGNORE, CONTENT_IGNORE, CONTENT_IGNORE,
			source_node   , source_node   , CONTENT_IGNORE,
			CONTENT_IGNORE, CONTENT_IGNORE, CONTENT_IGNORE
		};

		crafting::setRecipe(recipe, nodeid, 2);
	}else{
		crafting::set1To4Recipe(source_node,nodeid);
	}
	content_nodebox_knob(features);
	features->setInventoryTextureNodeBox(nodeid,texture,texture,texture);
	lists::add("craftguide",nodeid);
	lists::add("creative",nodeid);
}

void CNodeDefManager::updateTextures(IGameDef *gamedef,
	void (*progress_callback)(void *progress_args, u32 progress, u32 max_progress),
	void *progress_callback_args)
{
#ifndef SERVER
	infostream << "CNodeDefManager::updateTextures(): Updating "
		"textures in node definitions" << std::endl;

	Client *client = (Client *)gamedef;
	ITextureSource *tsrc = client->tsrc();
	IShaderSource *shdsrc = client->getShaderSource();
	scene::IMeshManipulator *meshmanip =
		RenderingEngine::get_scene_manager()->getMeshManipulator();
	TextureSettings tsettings;
	tsettings.readSettings();

	u32 size = m_content_features.size();

	for (u32 i = 0; i < size; i++) {
		ContentFeatures *f = &(m_content_features[i]);
		f->updateTextures(tsrc, shdsrc, meshmanip, client, tsettings);
		progress_callback(progress_callback_args, i, size);
	}
#endif
}

void CNodeDefManager::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);
	ContentFeatures f;
	for (u16 n = 0; n < count; n++) {
		u16 i = readU16(is2);

		// Read it from the string wrapper
		std::string wrapper = deSerializeString(is2);
		std::istringstream wrapper_is(wrapper, std::ios::binary);
		f.deSerialize(wrapper_is);

		// Check error conditions
		if (i == CONTENT_IGNORE || i == CONTENT_AIR || i == CONTENT_UNKNOWN) {
			warningstream << "NodeDefManager::deSerialize(): "
				"not changing builtin node " << i << std::endl;
			continue;
		}
		if (f.name.empty()) {
			warningstream << "NodeDefManager::deSerialize(): "
				"received empty name" << std::endl;
			continue;
		}

		// Ignore aliases
		u16 existing_id;
		if (m_name_id_mapping.getId(f.name, existing_id) && i != existing_id) {
			warningstream << "NodeDefManager::deSerialize(): "
				"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())
			m_content_features.resize((u32)(i) + 1);
		m_content_features[i] = f;
		addNameIdMapping(i, f.name);
		verbosestream << "deserialized " << f.name << std::endl;

		getNodeBoxUnion(f.selection_box, f, &m_selection_box_union);
		fixSelectionBoxIntUnion();
	}
}

	void serialize(std::ostream &os)
	{
		u16 count = 0;
		std::ostringstream tmp_os(std::ios::binary);
		for(u16 i=0; i<=MAX_CONTENT; i++)
		{
			if(i == CONTENT_IGNORE || i == CONTENT_AIR)
				continue;
			ContentFeatures *f = &m_content_features[i];
			if(f->name == "")
				continue;
			writeU16(tmp_os, i);
			f->serialize(tmp_os);
			count++;
		}
		writeU16(os, count);
		os<<serializeLongString(tmp_os.str());
	}

	void deSerialize(std::istream &is)
	{
		clear();
		u16 count = readU16(is);
		std::istringstream tmp_is(deSerializeLongString(is), std::ios::binary);
		for(u16 n=0; n<count; n++){
			u16 i = readU16(tmp_is);
			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];
			f->deSerialize(tmp_is);
			if(f->name != "")
				addNameIdMapping(i, f->name);
		}
	}

	void serialize(std::ostream &os)
	{
		writeU8(os, 1); // version
		u16 count = 0;
		std::ostringstream os2(std::ios::binary);
		for(u16 i=0; i<=MAX_CONTENT; i++)
		{
			if(i == CONTENT_IGNORE || i == CONTENT_AIR)
				continue;
			ContentFeatures *f = &m_content_features[i];
			if(f->name == "")
				continue;
			writeU16(os2, i);
			// Wrap it in a string to allow different lengths without
			// strict version incompatibilities
			std::ostringstream wrapper_os(std::ios::binary);
			f->serialize(wrapper_os);
			os2<<serializeString(wrapper_os.str());
			count++;
		}
		writeU16(os, count);
		os<<serializeLongString(os2.str());
	}

void content_mapnode_init()
{
	// Read some settings
	bool new_style_water = g_settings->getBool("new_style_water");
	bool new_style_leaves = g_settings->getBool("new_style_leaves");
	bool invisible_stone = g_settings->getBool("invisible_stone");
	bool opaque_water = g_settings->getBool("opaque_water");

	content_t i;
	ContentFeatures *f = NULL;

	i = CONTENT_STONE;
	f = &content_features(i);
	f->setAllTextures("stone.png");
	f->setInventoryTextureCube("stone.png", "stone.png", "stone.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->often_contains_mineral = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(CONTENT_COBBLE)+" 1";
	setStoneLikeDiggingProperties(f->digging_properties, 1.0);
	if(invisible_stone)
		f->solidness = 0; // For debugging, hides regular stone
	
	i = CONTENT_GRASS;
	f = &content_features(i);
	f->setAllTextures("mud.png^grass_side.png");
	f->setTexture(0, "grass.png");
	f->setTexture(1, "mud.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(CONTENT_MUD)+" 1";
	setDirtLikeDiggingProperties(f->digging_properties, 1.0);
	
	i = CONTENT_GRASS_FOOTSTEPS;
	f = &content_features(i);
	f->setAllTextures("mud.png^grass_side.png");
	f->setTexture(0, "grass_footsteps.png");
	f->setTexture(1, "mud.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(CONTENT_MUD)+" 1";
	setDirtLikeDiggingProperties(f->digging_properties, 1.0);
	
	i = CONTENT_MUD;
	f = &content_features(i);
	f->setAllTextures("mud.png");
	f->setInventoryTextureCube("mud.png", "mud.png", "mud.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
	setDirtLikeDiggingProperties(f->digging_properties, 1.0);
	
	i = CONTENT_SAND;
	f = &content_features(i);
	f->setAllTextures("sand.png");
	f->setInventoryTextureCube("sand.png", "sand.png", "sand.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
	setDirtLikeDiggingProperties(f->digging_properties, 1.0);
	
	i = CONTENT_GRAVEL;
	f = &content_features(i);
	f->setAllTextures("gravel.png");
	f->setInventoryTextureCube("gravel.png", "gravel.png", "gravel.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
	setDirtLikeDiggingProperties(f->digging_properties, 1.75);
	
	i = CONTENT_SANDSTONE;
	f = &content_features(i);
	f->setAllTextures("sandstone.png");
	f->setInventoryTextureCube("sandstone.png", "sandstone.png", "sandstone.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(CONTENT_SAND)+" 1";
	setDirtLikeDiggingProperties(f->digging_properties, 1.0);

	i = CONTENT_CLAY;
	f = &content_features(i);
	f->setAllTextures("clay.png");
	f->setInventoryTextureCube("clay.png", "clay.png", "clay.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("CraftItem lump_of_clay 4");
	setDirtLikeDiggingProperties(f->digging_properties, 1.0);

	i = CONTENT_BRICK;
	f = &content_features(i);
	f->setAllTextures("brick.png");
	f->setInventoryTextureCube("brick.png", "brick.png", "brick.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("CraftItem clay_brick 4");
	setStoneLikeDiggingProperties(f->digging_properties, 1.0);

	i = CONTENT_TREE;
	f = &content_features(i);
	f->setAllTextures("tree.png");
//.........这里部分代码省略.........

void content_mapnode_init()
{
	// Read some settings
	bool new_style_water = g_settings.getBool("new_style_water");
	bool new_style_leaves = g_settings.getBool("new_style_leaves");
	bool invisible_stone = g_settings.getBool("invisible_stone");

	content_t i;
	ContentFeatures *f = NULL;

	i = CONTENT_STONE;
	f = &content_features(i);
	f->setAllTextures("stone.png");
	f->setInventoryTextureCube("stone.png", "stone.png", "stone.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(CONTENT_COBBLE)+" 1";
	setStoneLikeDiggingProperties(f->digging_properties, 1.0);
	if(invisible_stone)
		f->solidness = 0; // For debugging, hides regular stone
	
	i = CONTENT_GRASS;
	f = &content_features(i);
	f->setAllTextures("mud.png^grass_side.png");
	f->setTexture(0, "grass.png");
	f->setTexture(1, "mud.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(CONTENT_MUD)+" 1";
	setDirtLikeDiggingProperties(f->digging_properties, 1.0);
	
	i = CONTENT_GRASS_FOOTSTEPS;
	f = &content_features(i);
	f->setAllTextures("mud.png^grass_side.png");
	f->setTexture(0, "grass_footsteps.png");
	f->setTexture(1, "mud.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(CONTENT_MUD)+" 1";
	setDirtLikeDiggingProperties(f->digging_properties, 1.0);
	
	i = CONTENT_MUD;
	f = &content_features(i);
	f->setAllTextures("mud.png");
	f->setInventoryTextureCube("mud.png", "mud.png", "mud.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
	setDirtLikeDiggingProperties(f->digging_properties, 1.0);
	
	i = CONTENT_SAND;
	f = &content_features(i);
	f->setAllTextures("sand.png");
	f->setInventoryTextureCube("sand.png", "sand.png", "sand.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
	setDirtLikeDiggingProperties(f->digging_properties, 1.0);
	
	i = CONTENT_GRAVEL;
	f = &content_features(i);
	f->setAllTextures("gravel.png");
	f->setInventoryTextureCube("gravel.png", "gravel.png", "gravel.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
	setDirtLikeDiggingProperties(f->digging_properties, 1.75);
	
	i = CONTENT_SANDSTONE;
	f = &content_features(i);
	f->setAllTextures("sandstone.png");
	f->setInventoryTextureCube("sandstone.png", "sandstone.png", "sandstone.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("MaterialItem2 ")+itos(CONTENT_SAND)+" 1";
	setDirtLikeDiggingProperties(f->digging_properties, 1.0);

	i = CONTENT_CLAY;
	f = &content_features(i);
	f->setAllTextures("clay.png");
	f->setInventoryTextureCube("clay.png", "clay.png", "clay.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("CraftItem lump_of_clay 4");
	setDirtLikeDiggingProperties(f->digging_properties, 1.0);

	i = CONTENT_BRICK;
	f = &content_features(i);
	f->setAllTextures("brick.png");
	f->setInventoryTextureCube("brick.png", "brick.png", "brick.png");
	f->param_type = CPT_MINERAL;
	f->is_ground_content = true;
	f->dug_item = std::string("CraftItem clay_brick 4");
	setStoneLikeDiggingProperties(f->digging_properties, 1.0);

	i = CONTENT_TREE;
	f = &content_features(i);
	f->setAllTextures("tree.png");
	f->setTexture(0, "tree_top.png");
	f->setTexture(1, "tree_top.png");
//.........这里部分代码省略.........

void content_mapnode_plants(bool repeat)
{
	bool new_style_leaves = g_settings->getBool("new_style_leaves");
	content_t i;
	ContentFeatures *f = NULL;


	i = CONTENT_TREE;
	f = &content_features(i);
	f->description = wgettext("Tree");
	f->setAllTextures("tree.png");
	f->setTexture(0, "tree_top.png");
	f->setTexture(1, "tree_top.png");
	f->setInventoryTextureCube("tree_top.png", "tree.png", "tree.png");
	f->draw_type = CDT_TRUNKLIKE;
	f->is_ground_content = true;
	f->flammable = 2; // can be set on fire
	f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
	f->cook_result = std::string("CraftItem lump_of_charcoal 1");
	f->fuel_time = 30;
	f->type = CMT_TREE;
	f->hardness = 1.0;
	f->ondig_special_drop = CONTENT_WOOD;
	f->ondig_special_drop_count = 6;
	f->ondig_special_tool = TT_AXE;
	lists::add("creative",i);
	lists::add("cooking",i);

	i = CONTENT_APPLE_TREE;
	f = &content_features(i);
	f->description = wgettext("Apple Tree");
	f->setAllTextures("apple_tree.png");
	f->setTexture(0, "apple_tree_top.png");
	f->setTexture(1, "apple_tree_top.png");
	f->setInventoryTextureCube("apple_tree_top.png", "apple_tree.png", "apple_tree.png");
	f->draw_type = CDT_TRUNKLIKE;
	f->is_ground_content = true;
	f->flammable = 2; // can be set on fire
	f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
	f->cook_result = std::string("CraftItem lump_of_charcoal 1");
	f->fuel_time = 30;
	f->type = CMT_TREE;
	f->hardness = 1.0;
	f->ondig_special_drop = CONTENT_WOOD;
	f->ondig_special_drop_count = 6;
	f->ondig_special_tool = TT_AXE;
	lists::add("creative",i);
	lists::add("cooking",i);

	i = CONTENT_JUNGLETREE;
	f = &content_features(i);
	f->description = wgettext("Jungle Tree");
	f->setAllTextures("jungletree.png");
	f->setTexture(0, "jungletree_top.png");
	f->setTexture(1, "jungletree_top.png");
	f->setInventoryTextureCube("jungletree_top.png", "jungletree.png", "jungletree.png");
	f->draw_type = CDT_TRUNKLIKE;
	//f->is_ground_content = true;
	f->flammable = 2; // can be set on fire
	f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
	f->cook_result = std::string("CraftItem lump_of_charcoal 1");
	f->fuel_time = 30;
	f->type = CMT_TREE;
	f->hardness = 1.0;
	f->ondig_special_drop = CONTENT_JUNGLEWOOD;
	f->ondig_special_drop_count = 6;
	f->ondig_special_tool = TT_AXE;
	lists::add("creative",i);

	i = CONTENT_CONIFER_TREE;
	f = &content_features(i);
	f->description = wgettext("Conifer Tree");
	f->setAllTextures("conifer_tree.png");
	f->setTexture(0, "conifer_tree_top.png");
	f->setTexture(1, "conifer_tree_top.png");
	f->setInventoryTextureCube("conifer_tree_top.png", "conifer_tree.png", "conifer_tree.png");
	f->draw_type = CDT_TRUNKLIKE;
	f->is_ground_content = true;
	f->flammable = 2; // can be set on fire
	f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
	f->cook_result = std::string("CraftItem lump_of_charcoal 1");
	f->fuel_time = 25;
	f->type = CMT_TREE;
	f->hardness = 0.8;
	f->ondig_special_drop = CONTENT_WOOD_PINE;
	f->ondig_special_drop_count = 6;
	f->ondig_special_tool = TT_AXE;
	lists::add("creative",i);
	lists::add("cooking",i);

	i = CONTENT_YOUNG_TREE;
	f = &content_features(i);
	f->description = wgettext("Young Tree");
	f->setAllTextures("tree.png");
	f->setTexture(0, "tree_top.png");
	f->setTexture(1, "tree_top.png");
	f->draw_type = CDT_NODEBOX;
	f->solidness = 0; // drawn separately, makes no faces
	f->param_type = CPT_LIGHT;
	f->light_propagates = true;
//.........这里部分代码省略.........

/*
	See mapnode.h for description.
*/
void init_mapnode()
{
	if(g_texturesource == NULL)
	{
		dstream<<"INFO: Initial run of init_mapnode with "
				"g_texturesource=NULL. If this segfaults, "
				"there is a bug with something not checking for "
				"the NULL value."<<std::endl;
	}
	else
	{
		dstream<<"INFO: Full run of init_mapnode with "
				"g_texturesource!=NULL"<<std::endl;
	}

	/*// Read some settings
	bool new_style_water = g_settings.getBool("new_style_water");
	bool new_style_leaves = g_settings.getBool("new_style_leaves");*/

	/*
		Initialize content feature table
	*/

#ifndef SERVER
	/*
		Set initial material type to same in all tiles, so that the
		same material can be used in more stuff.
		This is set according to the leaves because they are the only
		differing material to which all materials can be changed to
		get this optimization.
	*/
	u8 initial_material_type = MATERIAL_ALPHA_SIMPLE;
	/*if(new_style_leaves)
		initial_material_type = MATERIAL_ALPHA_SIMPLE;
	else
		initial_material_type = MATERIAL_ALPHA_NONE;*/
	for(u16 i=0; i<MAX_CONTENT+1; i++)
	{
		ContentFeatures *f = &g_content_features[i];
		// Re-initialize
		f->reset();

		for(u16 j=0; j<6; j++)
			f->tiles[j].material_type = initial_material_type;
	}
#endif

	/*
		Initially set every block to be shown as an unknown block.
		Don't touch CONTENT_IGNORE or CONTENT_AIR.
	*/
	for(u16 i=0; i<MAX_CONTENT+1; i++)
	{
		if(i == CONTENT_IGNORE || i == CONTENT_AIR)
			continue;
		ContentFeatures *f = &g_content_features[i];
		f->setAllTextures("unknown_block.png");
		f->dug_item = std::string("MaterialItem2 ")+itos(i)+" 1";
	}

	// Make CONTENT_IGNORE to not block the view when occlusion culling
	content_features(CONTENT_IGNORE).solidness = 0;

	/*
		Initialize mapnode content
	*/
	content_mapnode_init();

}