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Commit message (Collapse)AuthorAge
* Add option to not send pre v25 init packetest312016-03-15
| | | | | | | | | | | | | | | | | The legacy init packet (pre v25) sends information about the client's password that a server could use to log in to other servers if the username and password are the same. All the other benefits of SRP of protocol v25 are missed if the legacy init packet is still sent during connection creation. This patch adds an option to not send the v25 init packet. Not sending the v25 packet means breaking compat with pre v25 servers, but as the option is not enabled by default, no servers are affected unless the user explicitly flips the switch. More than 90% of the servers on the serverlist support post v25 protocols. The patch also fixes a bug with greying out of non compliant servers being done wrongly, the min and max params were mixed.
* Add options for screenshot format and qualityDiego Martinez2016-03-12
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* Documentation: Auto-update conf.example and settings_translation_file.cppparamat2016-03-12
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* Documentation: Clarify global and mapgen-specific mapgen flagsparamat2016-03-11
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* Add forgotten valleys mapgen in mapgen nameMuhammad Rifqi Priyo Susanto2016-03-05
| | | | Missing `valleys` in `settingtypes.txt` and `minetest.conf.example`.
* Update po files, minetest.conf.example and settings_translation_file.cppest312016-02-27
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* Remove new_style_waterRealBadAngel2016-02-26
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* Camera: remove auto tune FPS, single view range settingRealBadAngel2016-02-21
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* Remove preload_item_visuals codeRealBadAngel2016-02-21
| | | | Closes #3748
* Documentation: Remove now unused 'vertical spawn range'paramat2016-02-11
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* Filmic HDR tone mappingRealBadAngel2016-02-09
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* Cleanup selection mesh code, add shaders for halo and selection boxesRealBadAngel2016-02-08
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* Use meshes to display inventory itemsRealBadAngel2016-02-07
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* Mgvalleys: use standard cavesDuane Robertson2016-01-31
| | | | | | | | | | Replace simple caves with V5 caves, adding unpredictable water and lava settings and massive caves based on subterrain. Remove fast terrain mode and accompanying settings. Remove superfluous temperature/humidity settings. Remove lava/water height setting. Fix errors in humidity handling and remove humidity_break_point setting. Move cave noises to generateCaves. Fix minor formatting/naming issues and use MYMAX/MYMIN/myround.
* Add Valleys mapgen.Duane Robertson2016-01-14
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* Mgflat: Set blank default spflags. Unhideparamat2016-01-10
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* New 3D Mode: PageflipDalai Felinto2016-01-09
| | | | | | | | | | | | | | | | The pageflip mode requires a stereo quadbuffer, and a modern graphic card. Patch tested with NVidia 3D Vision. The mini-map is not drawn, but that's what is done for topbottom and sidebyside modes as well. Also most of the time the user would prefer the HUD to be off. That's for the user to decide though, and toggle it manually. Finally, the interocular distance (aka eye separation) is twice as much as the "3d_paralax_strength" settings. I find this a strange design decision. I didn't want to chance this though, since it's how the other 3d modes interpret this settings.
* Mgfractal: Add 3D and 4D fractalsparamat2015-12-15
| | | | | | | | | | | | 3D Mandelbrot/Mandelbar 3D Christmas Tree 3D Mandelbulb 3D Cosine Mandelbulb 4D Mandelbulb Plus corresponding julia set for each Add credits for formulas Rename parameter 'formula' to 'fractal' Speed optimisations
* Fix some setting documentationest312015-12-10
| | | | | | | * Horizontal and vertical are used wrongly. Use height and width because horizontal/vertical describes different things. Thanks @kilbith for pointing out. * Update minetest.conf.example and settings_translation_file.cpp * Correct maximum/minimum copy paste mistake.
* Mgfractal: Move julia set selection into formula parameterparamat2015-11-23
| | | | | | Improve default parameters Update and improve documentation Unhide mapgen, but is still unstable
* Mapgen: Add global 'decorations' flagparamat2015-11-21
| | | | | | | | | | Flag is set by default in MapgenParams The global 'trees' flag remains but is now undocumented and unset by default in MapgenParams Add mgv6_spflag 'trees' set by default in defaultsettings.cpp to affect new worlds only This is automatically backwards compatible for existing worlds
* Mgfractal: Revert unnecessary duplication of parametersparamat2015-11-15
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* Mgfractal: Create a choice of 4 mandelbrot formulasparamat2015-11-14
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* Mgv6: Move global mapgen flag 'flat' into mgv6 spflagsparamat2015-11-13
| | | | | Add mgv6 spflag 'flat' Global flag is kept for backwards compatibility but is now undocumented
* Mapgen: Add flat mapgen in hidden formparamat2015-11-11
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* Update minetest.conf.example and src/settings_translation_file.cppest312015-11-08
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* Conf.example, settingtypes: Improve mgfractal documentationparamat2015-11-06
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* Mgfractal: Add documentation to conf.example and settingtypesparamat2015-11-04
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* findSpawnPos: Add setting for max height above water levelparamat2015-10-29
| | | | | | | | Increase default from 6 to 16 to help with mgv7 and mgfractal Large-scale or alternative mapgens can result in a lowland spawn point not being found, causing a spawn at (0, 0, 0) possibly buried underground The max height is now settable to allow correct player spawn in any mapgen or when using custom noise parameters
* Escape " in generated settings_translation_file.cppPilzAdam2015-10-25
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* Improve Lua settings menuPilzAdam2015-10-24
| | | | | | | | | | | | * Add key settings to setting table and ignore them later This way they are added to the auto-generated minetest.conf.example * Add flags type * Add input validation for int, float and flags * Break in-game graphic settings into multiple sections * Parse settingtpes.txt in mods and games * Improve description for a lot of settings * Fix typos and wording in settingtypes.txt * Convert language setting to an enum
* New settings tab contain all possible settingsPilzAdam2015-10-17
| | | | | Settings are automatically parsed from builtin/settingtypes.txt The edit dialog automatically adjust based on the type of setting
* Refactor loggingShadowNinja2015-10-14
| | | | | | | | | - Add warning log level - Change debug_log_level setting to enumeration string - Map Irrlicht log events to MT log events - Encapsulate log_* functions and global variables into a class, Logger - Unify dstream with standard logging mechanism - Unify core.debug() with standard core.log() script API
* Mgv5/mgv7 biomes: Reduce heat and humidity noise spreads to former value of 750paramat2015-09-07
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* Make example config more readableMarcin2015-09-01
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* Dungeongen: Remove floating framesparamat2015-08-29
| | | | | | | | Preserves the rare unbroken protruding dungeons Fix random range for first room roomplace Fix checked volume for first room 'fits' bool and check for 'untouchable' flag instead of 'inside' Remove 'enable floating dungeons' setting
* Fix comment positioning in minetest.conf.exampleonkrot2015-08-24
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* Defaultsettings: Increase client_mapblock_limit to 5000paramat2015-08-15
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* Add count based unload limit for mapblocksest312015-08-13
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* Add map limit config optionrubenwardy2015-08-02
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* Optional reconnect functionalityest312015-07-23
| | | | | | Enable the server to request the client to reconnect. This can be done with the now extended minetest.request_shutdown([reason], [reconnect]) setting.
* Conf.example: Update mgv7 noise parametersparamat2015-07-22
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* Server kicks: make messages configurable, cache wstringest312015-07-17
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* Add new leaves style - simple (glasslike drawtype)RealBadAngel2015-07-08
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* Disable mesh cache by defaultest312015-07-01
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* Biome API: Increase heat and humidity noise spreads to 1000paramat2015-06-30
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* Minimap updateRealBadAngel2015-06-28
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* Mgv7: Edit noise parameters. Fewer octaves, larger spreads.paramat2015-06-21
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* Biome API: Add noise defined biome blendparamat2015-06-18
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* Improved parallax mapping. Generate heightmaps on the fly.RealBadAngel2015-06-14
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generated by cgit v1.2.3 (git 2.39.1) at 2025-01-28 12:03:29 +0000
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/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "inventory.h"
#include "serialization.h"
#include "debug.h"
#include <algorithm>
#include <sstream>
#include "log.h"
#include "itemdef.h"
#include "util/strfnd.h"
#include "content_mapnode.h" // For loading legacy MaterialItems
#include "nameidmapping.h" // For loading legacy MaterialItems
#include "util/serialize.h"
#include "util/string.h"

/*
	ItemStack
*/

static content_t content_translate_from_19_to_internal(content_t c_from)
{
	for (const auto &tt : trans_table_19) {
		if(tt[1] == c_from) {
			return tt[0];
		}
	}
	return c_from;
}

ItemStack::ItemStack(const std::string &name_, u16 count_,
		u16 wear_, IItemDefManager *itemdef) :
	name(itemdef->getAlias(name_)),
	count(count_),
	wear(wear_)
{
	if (name.empty() || count == 0)
		clear();
	else if (itemdef->get(name).type == ITEM_TOOL)
		count = 1;
}

void ItemStack::serialize(std::ostream &os, bool serialize_meta) const
{
	if (empty())
		return;

	// Check how many parts of the itemstring are needed
	int parts = 1;
	if (!metadata.empty())
		parts = 4;
	else if (wear != 0)
		parts = 3;
	else if (count != 1)
		parts = 2;

	os << serializeJsonStringIfNeeded(name);
	if (parts >= 2)
		os << " " << count;
	if (parts >= 3)
		os << " " << wear;
	if (parts >= 4) {
		os << " ";
		if (serialize_meta)
			metadata.serialize(os);
		else
			os << "<metadata size=" << metadata.size() << ">";
	}
}

void ItemStack::deSerialize(std::istream &is, IItemDefManager *itemdef)
{
	clear();

	// Read name
	name = deSerializeJsonStringIfNeeded(is);

	// Skip space
	std::string tmp;
	std::getline(is, tmp, ' ');
	if(!tmp.empty())
		throw SerializationError("Unexpected text after item name");

	if(name == "MaterialItem")
	{
		// Obsoleted on 2011-07-30

		u16 material;
		is>>material;
		u16 materialcount;
		is>>materialcount;
		// Convert old materials
		if(material <= 0xff)
			material = content_translate_from_19_to_internal(material);
		if(material > 0xfff)
			throw SerializationError("Too large material number");
		// Convert old id to name
		NameIdMapping legacy_nimap;
		content_mapnode_get_name_id_mapping(&legacy_nimap);
		legacy_nimap.getName(material, name);
		if(name.empty())
			name = "unknown_block";
		if (itemdef)
			name = itemdef->getAlias(name);
		count = materialcount;
	}
	else if(name == "MaterialItem2")
	{
		// Obsoleted on 2011-11-16

		u16 material;
		is>>material;
		u16 materialcount;
		is>>materialcount;
		if(material > 0xfff)
			throw SerializationError("Too large material number");
		// Convert old id to name
		NameIdMapping legacy_nimap;
		content_mapnode_get_name_id_mapping(&legacy_nimap);
		legacy_nimap.getName(material, name);
		if(name.empty())
			name = "unknown_block";
		if (itemdef)
			name = itemdef->getAlias(name);
		count = materialcount;
	}
	else if(name == "node" || name == "NodeItem" || name == "MaterialItem3"
			|| name == "craft" || name == "CraftItem")
	{
		// Obsoleted on 2012-01-07

		std::string all;
		std::getline(is, all, '\n');
		// First attempt to read inside ""
		Strfnd fnd(all);
		fnd.next("\"");
		// If didn't skip to end, we have ""s
		if(!fnd.at_end()){
			name = fnd.next("\"");
		} else { // No luck, just read a word then
			fnd.start(all);
			name = fnd.next(" ");
		}
		fnd.skip_over(" ");
		if (itemdef)
			name = itemdef->getAlias(name);
		count = stoi(trim(fnd.next("")));
		if(count == 0)
			count = 1;
	}
	else if(name == "MBOItem")
	{
		// Obsoleted on 2011-10-14
		throw SerializationError("MBOItem not supported anymore");
	}
	else if(name == "tool" || name == "ToolItem")
	{
		// Obsoleted on 2012-01-07

		std::string all;
		std::getline(is, all, '\n');
		// First attempt to read inside ""
		Strfnd fnd(all);
		fnd.next("\"");
		// If didn't skip to end, we have ""s
		if(!fnd.at_end()){
			name = fnd.next("\"");
		} else { // No luck, just read a word then
			fnd.start(all);
			name = fnd.next(" ");
		}
		count = 1;
		// Then read wear
		fnd.skip_over(" ");
		if (itemdef)
			name = itemdef->getAlias(name);
		wear = stoi(trim(fnd.next("")));
	}
	else
	{
		do  // This loop is just to allow "break;"
		{
			// The real thing

			// Apply item aliases
			if (itemdef)
				name = itemdef->getAlias(name);

			// Read the count
			std::string count_str;
			std::getline(is, count_str, ' ');
			if (count_str.empty()) {
				count = 1;
				break;
			}

			count = stoi(count_str);

			// Read the wear
			std::string wear_str;
			std::getline(is, wear_str, ' ');
			if(wear_str.empty())
				break;

			wear = stoi(wear_str);

			// Read metadata
			metadata.deSerialize(is);

			// In case fields are added after metadata, skip space here:
			//std::getline(is, tmp, ' ');
			//if(!tmp.empty())
			//	throw SerializationError("Unexpected text after metadata");

		} while(false);
	}

	if (name.empty() || count == 0)
		clear();
	else if (itemdef && itemdef->get(name).type == ITEM_TOOL)
		count = 1;
}

void ItemStack::deSerialize(const std::string &str, IItemDefManager *itemdef)
{
	std::istringstream is(str, std::ios::binary);
	deSerialize(is, itemdef);
}

std::string ItemStack::getItemString(bool include_meta) const
{
	std::ostringstream os(std::ios::binary);
	serialize(os, include_meta);
	return os.str();
}

std::string ItemStack::getDescription(IItemDefManager *itemdef) const
{
	std::string desc = metadata.getString("description");
	if (desc.empty())
		desc = getDefinition(itemdef).description;
	return desc.empty() ? name : desc;
}


ItemStack ItemStack::addItem(ItemStack newitem, IItemDefManager *itemdef)
{
	// If the item is empty or the position invalid, bail out
	if(newitem.empty())
	{
		// nothing can be added trivially
	}
	// If this is an empty item, it's an easy job.
	else if(empty())
	{
		*this = newitem;
		newitem.clear();
	}
	// If item name or metadata differs, bail out
	else if (name != newitem.name
		|| metadata != newitem.metadata)
	{
		// cannot be added
	}
	// If the item fits fully, add counter and delete it
	else if(newitem.count <= freeSpace(itemdef))
	{
		add(newitem.count);
		newitem.clear();
	}
	// Else the item does not fit fully. Add all that fits and return
	// the rest.
	else
	{
		u16 freespace = freeSpace(itemdef);
		add(freespace);
		newitem.remove(freespace);
	}

	return newitem;
}

bool ItemStack::itemFits(ItemStack newitem,
		ItemStack *restitem,
		IItemDefManager *itemdef) const
{

	// If the item is empty or the position invalid, bail out
	if(newitem.empty())
	{
		// nothing can be added trivially
	}
	// If this is an empty item, it's an easy job.
	else if(empty())
	{
		newitem.clear();
	}
	// If item name or metadata differs, bail out
	else if (name != newitem.name
		|| metadata != newitem.metadata)
	{
		// cannot be added
	}
	// If the item fits fully, delete it
	else if(newitem.count <= freeSpace(itemdef))
	{
		newitem.clear();
	}
	// Else the item does not fit fully. Return the rest.
	else
	{
		u16 freespace = freeSpace(itemdef);
		newitem.remove(freespace);
	}

	if(restitem)
		*restitem = newitem;

	return newitem.empty();
}

ItemStack ItemStack::takeItem(u32 takecount)
{
	if(takecount == 0 || count == 0)
		return ItemStack();

	ItemStack result = *this;
	if(takecount >= count)
	{
		// Take all
		clear();
	}
	else
	{
		// Take part
		remove(takecount);
		result.count = takecount;
	}
	return result;
}

ItemStack ItemStack::peekItem(u32 peekcount) const
{
	if(peekcount == 0 || count == 0)
		return ItemStack();

	ItemStack result = *this;
	if(peekcount < count)
		result.count = peekcount;
	return result;
}

/*
	Inventory
*/

InventoryList::InventoryList(const std::string &name, u32 size, IItemDefManager *itemdef):
	m_name(name),
	m_size(size),
	m_itemdef(itemdef)
{
	clearItems();
}

void InventoryList::clearItems()
{
	m_items.clear();

	for (u32 i=0; i < m_size; i++) {
		m_items.emplace_back();
	}

	setModified();
}

void InventoryList::setSize(u32 newsize)
{
	if (newsize == m_items.size())
		return;

	m_items.resize(newsize);
	m_size = newsize;
	setModified();
}

void InventoryList::setWidth(u32 newwidth)
{
	m_width = newwidth;
	setModified();
}

void InventoryList::setName(const std::string &name)
{
	m_name = name;
	setModified();
}

void InventoryList::serialize(std::ostream &os, bool incremental) const
{
	//os.imbue(std::locale("C"));

	os<<"Width "<<m_width<<"\n";

	for (const auto &item : m_items) {
		if (item.empty()) {
			os<<"Empty";
		} else {
			os<<"Item ";
			item.serialize(os);
		}
		// TODO: Implement this:
		// if (!incremental || item.checkModified())
		// os << "Keep";
		os<<"\n";
	}

	os<<"EndInventoryList\n";
}

void InventoryList::deSerialize(std::istream &is)
{
	//is.imbue(std::locale("C"));
	setModified();

	u32 item_i = 0;
	m_width = 0;

	while (is.good()) {
		std::string line;
		std::getline(is, line, '\n');

		std::istringstream iss(line);
		//iss.imbue(std::locale("C"));

		std::string name;
		std::getline(iss, name, ' ');

		if (name == "EndInventoryList" || name == "end") {
			// If partial incremental: Clear leftover items (should not happen!)
			for (size_t i = item_i; i < m_items.size(); ++i)
				m_items[i].clear();
			return;
		}

		if (name == "Width") {
			iss >> m_width;
			if (iss.fail())
				throw SerializationError("incorrect width property");
		}
		else if(name == "Item")
		{
			if(item_i > getSize() - 1)
				throw SerializationError("too many items");
			ItemStack item;
			item.deSerialize(iss, m_itemdef);
			m_items[item_i++] = item;
		}
		else if(name == "Empty")
		{
			if(item_i > getSize() - 1)
				throw SerializationError("too many items");
			m_items[item_i++].clear();
		} else if (name == "Keep") {
			++item_i; // Unmodified item
		}
	}

	// Contents given to deSerialize() were not terminated properly: throw error.

	std::ostringstream ss;
	ss << "Malformatted inventory list. list="
		<< m_name << ", read " << item_i << " of " << getSize()
		<< " ItemStacks." << std::endl;
	throw SerializationError(ss.str());
}

InventoryList::InventoryList(const InventoryList &other)
{
	*this = other;
}

InventoryList & InventoryList::operator = (const InventoryList &other)
{
	m_items = other.m_items;
	m_size = other.m_size;
	m_width = other.m_width;
	m_name = other.m_name;
	m_itemdef = other.m_itemdef;
	//setDirty(true);

	return *this;
}

bool InventoryList::operator == (const InventoryList &other) const
{
	if(m_size != other.m_size)
		return false;
	if(m_width != other.m_width)
		return false;
	if(m_name != other.m_name)
		return false;
	for (u32 i = 0; i < m_items.size(); i++)
		if (m_items[i] != other.m_items[i])
			return false;

	return true;
}

const std::string &InventoryList::getName() const
{
	return m_name;
}

u32 InventoryList::getSize() const
{
	return m_items.size();
}

u32 InventoryList::getWidth() const
{
	return m_width;
}

u32 InventoryList::getUsedSlots() const
{
	u32 num = 0;
	for (const auto &m_item : m_items) {
		if (!m_item.empty())
			num++;
	}
	return num;
}

u32 InventoryList::getFreeSlots() const
{
	return getSize() - getUsedSlots();
}

const ItemStack& InventoryList::getItem(u32 i) const
{
	assert(i < m_size); // Pre-condition
	return m_items[i];
}

ItemStack& InventoryList::getItem(u32 i)
{
	assert(i < m_size); // Pre-condition
	return m_items[i];
}

ItemStack InventoryList::changeItem(u32 i, const ItemStack &newitem)
{
	if(i >= m_items.size())
		return newitem;

	ItemStack olditem = m_items[i];
	m_items[i] = newitem;
	setModified();
	return olditem;
}

void InventoryList::deleteItem(u32 i)
{
	assert(i < m_items.size()); // Pre-condition
	m_items[i].clear();
	setModified();
}

ItemStack InventoryList::addItem(const ItemStack &newitem_)
{
	ItemStack newitem = newitem_;

	if(newitem.empty())
		return newitem;

	/*
		First try to find if it could be added to some existing items
	*/
	for(u32 i=0; i<m_items.size(); i++)
	{
		// Ignore empty slots
		if(m_items[i].empty())
			continue;
		// Try adding
		newitem = addItem(i, newitem);
		if(newitem.empty())
			return newitem; // All was eaten
	}

	/*
		Then try to add it to empty slots
	*/
	for(u32 i=0; i<m_items.size(); i++)
	{
		// Ignore unempty slots
		if(!m_items[i].empty())
			continue;
		// Try adding
		newitem = addItem(i, newitem);
		if(newitem.empty())
			return newitem; // All was eaten
	}

	// Return leftover
	return newitem;
}

ItemStack InventoryList::addItem(u32 i, const ItemStack &newitem)
{
	if(i >= m_items.size())
		return newitem;

	ItemStack leftover = m_items[i].addItem(newitem, m_itemdef);
	if (leftover != newitem)
		setModified();
	return leftover;
}

bool InventoryList::itemFits(const u32 i, const ItemStack &newitem,
		ItemStack *restitem) const
{
	if(i >= m_items.size())
	{
		if(restitem)
			*restitem = newitem;
		return false;
	}

	return m_items[i].itemFits(newitem, restitem, m_itemdef);
}

bool InventoryList::roomForItem(const ItemStack &item_) const
{
	ItemStack item = item_;
	ItemStack leftover;
	for(u32 i=0; i<m_items.size(); i++)
	{
		if(itemFits(i, item, &leftover))
			return true;
		item = leftover;
	}
	return false;
}

bool InventoryList::containsItem(const ItemStack &item, bool match_meta) const
{
	u32 count = item.count;
	if (count == 0)
		return true;

	for (auto i = m_items.rbegin(); i != m_items.rend(); ++i) {
		if (count == 0)
			break;
		if (i->name == item.name && (!match_meta || (i->metadata == item.metadata))) {
			if (i->count >= count)
				return true;

			count -= i->count;
		}
	}
	return false;
}

ItemStack InventoryList::removeItem(const ItemStack &item)
{
	ItemStack removed;
	for (auto i = m_items.rbegin(); i != m_items.rend(); ++i) {
		if (i->name == item.name) {
			u32 still_to_remove = item.count - removed.count;
			ItemStack leftover = removed.addItem(i->takeItem(still_to_remove),
					m_itemdef);
			// Allow oversized stacks
			removed.count += leftover.count;

			if (removed.count == item.count)
				break;
		}
	}
	if (!removed.empty())
		setModified();
	return removed;
}

ItemStack InventoryList::takeItem(u32 i, u32 takecount)
{
	if(i >= m_items.size())
		return ItemStack();

	ItemStack taken = m_items[i].takeItem(takecount);
	if (!taken.empty())
		setModified();
	return taken;
}

void InventoryList::moveItemSomewhere(u32 i, InventoryList *dest, u32 count)
{
	// Take item from source list
	ItemStack item1;
	if (count == 0)
		item1 = changeItem(i, ItemStack());
	else
		item1 = takeItem(i, count);

	if (item1.empty())
		return;

	ItemStack leftover;
	leftover = dest->addItem(item1);

	if (!leftover.empty()) {
		// Add the remaining part back to the source item
		addItem(i, leftover);
	}
}

u32 InventoryList::moveItem(u32 i, InventoryList *dest, u32 dest_i,
		u32 count, bool swap_if_needed, bool *did_swap)
{
	if(this == dest && i == dest_i)
		return count;

	// Take item from source list
	ItemStack item1;
	if(count == 0)
		item1 = changeItem(i, ItemStack());
	else
		item1 = takeItem(i, count);

	if(item1.empty())
		return 0;

	// Try to add the item to destination list
	u32 oldcount = item1.count;
	item1 = dest->addItem(dest_i, item1);

	// If something is returned, the item was not fully added
	if(!item1.empty())
	{
		// If olditem is returned, nothing was added.
		bool nothing_added = (item1.count == oldcount);

		// If something else is returned, part of the item was left unadded.
		// Add the other part back to the source item
		addItem(i, item1);

		// If olditem is returned, nothing was added.
		// Swap the items
		if (nothing_added && swap_if_needed) {
			// Tell that we swapped
			if (did_swap != NULL) {
				*did_swap = true;
			}
			// Take item from source list
			item1 = changeItem(i, ItemStack());
			// Adding was not possible, swap the items.
			ItemStack item2 = dest->changeItem(dest_i, item1);
			// Put item from destination list to the source list
			changeItem(i, item2);
		}
	}
	return (oldcount - item1.count);
}

/*
	Inventory
*/

Inventory::~Inventory()
{
	clear();
}

void Inventory::clear()
{
	for (auto &m_list : m_lists) {
		delete m_list;
	}
	m_lists.clear();
	setModified();
}

Inventory::Inventory(IItemDefManager *itemdef)
{
	m_itemdef = itemdef;
	setModified();
}

Inventory::Inventory(const Inventory &other)
{
	*this = other;
}

Inventory & Inventory::operator = (const Inventory &other)
{
	// Gracefully handle self assignment
	if(this != &other)
	{
		clear();
		m_itemdef = other.m_itemdef;
		for (InventoryList *list : other.m_lists) {
			m_lists.push_back(new InventoryList(*list));
		}
		setModified();
	}
	return *this;
}

bool Inventory::operator == (const Inventory &other) const
{
	if(m_lists.size() != other.m_lists.size())
		return false;

	for(u32 i=0; i<m_lists.size(); i++)
	{
		if(*m_lists[i] != *other.m_lists[i])
			return false;
	}
	return true;
}

void Inventory::serialize(std::ostream &os, bool incremental) const
{
	//std::cout << "Serialize " << (int)incremental << ", n=" << m_lists.size() << std::endl;
	for (const InventoryList *list : m_lists) {
		if (!incremental || list->checkModified()) {
			os << "List " << list->getName() << " " << list->getSize() << "\n";
			list->serialize(os, incremental);
		} else {
			os << "KeepList " << list->getName() << "\n";
		}
	}

	os<<"EndInventory\n";
}

void Inventory::deSerialize(std::istream &is)
{
	std::vector<InventoryList *> new_lists;
	new_lists.reserve(m_lists.size());

	while (is.good()) {
		std::string line;
		std::getline(is, line, '\n');

		std::istringstream iss(line);

		std::string name;
		std::getline(iss, name, ' ');

		if (name == "EndInventory" || name == "end") {
			// Remove all lists that were not sent
			for (auto &list : m_lists) {
				if (std::find(new_lists.begin(), new_lists.end(), list) != new_lists.end())
					continue;

				delete list;
				list = nullptr;
				setModified();
			}
			m_lists.erase(std::remove(m_lists.begin(), m_lists.end(),
					nullptr), m_lists.end());
			return;
		}

		if (name == "List") {
			std::string listname;
			u32 listsize;

			std::getline(iss, listname, ' ');
			iss>>listsize;

			InventoryList *list = getList(listname);
			bool create_new = !list;
			if (create_new)
				list = new InventoryList(listname, listsize, m_itemdef);
			else
				list->setSize(listsize);
			list->deSerialize(is);

			new_lists.push_back(list);
			if (create_new)
				m_lists.push_back(list);

		} else if (name == "KeepList") {
			// Incrementally sent list
			std::string listname;
			std::getline(iss, listname, ' ');

			InventoryList *list = getList(listname);
			if (list) {
				new_lists.push_back(list);
			} else {
				errorstream << "Inventory::deSerialize(): Tried to keep list '" <<
					listname << "' which is non-existent." << std::endl;
			}
		}
		// Any additional fields will throw errors when received by a client
		// older than PROTOCOL_VERSION 38
	}

	// Contents given to deSerialize() were not terminated properly: throw error.

	std::ostringstream ss;
	ss << "Malformatted inventory (damaged?). "
		<< m_lists.size() << " lists read." << std::endl;
	throw SerializationError(ss.str());
}

InventoryList * Inventory::addList(const std::string &name, u32 size)
{
	setModified();
	s32 i = getListIndex(name);
	if(i != -1)
	{
		if(m_lists[i]->getSize() != size)
		{
			delete m_lists[i];
			m_lists[i] = new InventoryList(name, size, m_itemdef);
			m_lists[i]->setModified();
		}
		return m_lists[i];
	}


	//don't create list with invalid name
	if (name.find(' ') != std::string::npos)
		return nullptr;

	InventoryList *list = new InventoryList(name, size, m_itemdef);
	list->setModified();
	m_lists.push_back(list);
	return list;
}

InventoryList * Inventory::getList(const std::string &name)
{
	s32 i = getListIndex(name);
	if(i == -1)
		return NULL;
	return m_lists[i];
}

std::vector<const InventoryList*> Inventory::getLists()
{
	std::vector<const InventoryList*> lists;
	for (auto list : m_lists) {
		lists.push_back(list);
	}
	return lists;
}

bool Inventory::deleteList(const std::string &name)
{
	s32 i = getListIndex(name);
	if(i == -1)
		return false;

	setModified();
	delete m_lists[i];
	m_lists.erase(m_lists.begin() + i);
	return true;
}

const InventoryList * Inventory::getList(const std::string &name) const
{
	s32 i = getListIndex(name);
	if(i == -1)
		return NULL;
	return m_lists[i];
}

const s32 Inventory::getListIndex(const std::string &name) const
{
	for(u32 i=0; i<m_lists.size(); i++)
	{
		if(m_lists[i]->getName() == name)
			return i;
	}
	return -1;
}

//END
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-28 12:03:28 +0000