aboutsummaryrefslogtreecommitdiff
path: root/src/serverobject.h
Commit message (Expand)AuthorAge
* Punchwear (improved) (#8959)sfan52019-09-22
* Wieldhand: Specify which ItemStack to use (#8961)SmallJoker2019-09-21
* Unify wield item handling (#8677)SmallJoker2019-08-07
* Correct ServerActiveObject's virtual getArmorGroups() to be const.Beha2019-08-01
* ContentCAO: Fix broken attachments on join (#8701)SmallJoker2019-07-29
* Consistent HP and damage types (#8167)SmallJoker2019-02-10
* Fix C++11 violation that broke clang on Debian StretchPedro Gimeno2018-12-16
* Prevent objects from colliding with own child attachments (#7610)SmallJoker2018-08-05
* Allow damage for attached objects, add attach/detach callbacks (#6786)SmallJoker2018-04-30
* Add reasons to on_dieplayer and on_hpchangeAndrew Ward2018-03-28
* ServerEnv: Clean up object lifecycle handling (#6414)sfan52017-09-15
* Fix animation frame_speed and blend loosing precision due to incorrec… (#6357)sapier2017-09-01
* Code modernization: src/p*, src/q*, src/r*, src/s* (partial) (#6282)Loïc Blot2017-08-19
* C++ modernize: Pragma once (#6264)Loïc Blot2017-08-17
* ServerEnvironment::step: modernize loopsLoic Blot2017-08-11
* Cpp11 initializers: last src root changeset (#6022)Loïc Blot2017-06-21
* C++11 patchset 2: remove util/cpp11.h and util/cpp11_container.h (#5821)Loïc Blot2017-06-04
* Revert "Detach the player from entities on death." (#5087)Loïc Blot2017-01-21
* Detach the player from entities on death. (#5077)red-0012017-01-21
* Fix missing const in ServerActiveObject::getStaticDataLoic Blot2017-01-14
* Optimize SAO getStaticData by using std::string pointer instead of return copyLoic Blot2017-01-13
* Performance fix + SAO factorizationRogier2017-01-11
* PlayerSAO/LocalPlayer refactor: (#4612)Ner'zhul2016-10-30
* Attached particle spawnersraymoo2016-10-13
* Player/LocalPlayer/RemotePlayer inheritance cleanup (part 2 on X)Loic Blot2016-10-08
* Prevent attached models from disappearing during parent reload (#4128)Foghrye42016-10-08
* Fix invisible player when the attached entity is removedTeTpaAka2015-07-18
* Fix some issues with animations, and allow non-looped animations to be definedMirceaKitsune2015-06-22
* Fix typo in variable nameKahrl2015-05-28
* Add some missing getter functions to the lua APITeTpaAka2015-05-28
* Consistent const string paramsest312015-05-27
* Remove Queue class which uses std::list and use native std::queueLoic Blot2015-03-05
* SAO: re-add old ActiveObjectTypes for a future migration layerLoic Blot2015-02-17
* SAO work: ActiveObject types & SAO cleanup * Replace u8 types with ActiveObje...Loic Blot2015-02-17
* Replace setting unlimited_player_transfer_distance with player_transfer_distanceSmallJoker2014-11-08
* Remove remenants of mob codePavel Puchkin2014-10-23
* Allow modifying movement speed, jump height and gravity per-player via the Lu...MirceaKitsune2013-04-05
* Migrate to STL containers/algorithms.Ilya Zhuravlev2013-03-11
* Update Copyright YearsSfan52013-02-24
* Change Minetest-c55 to MinetestPilzAdam2013-02-24
* Full protocol 13 compatibility on server sidePerttu Ahola2012-11-29
* A bunch of fixesMirceaKitsune2012-11-25
* Update attachments at the ending of the addToScene function for parents. And ...MirceaKitsune2012-11-25
* Framework for the attachment system, new object property which allows changin...MirceaKitsune2012-11-25
* Get the new animation framework properly workingMirceaKitsune2012-11-25
* Add dtime_s to entity activationPerttu Ahola2012-09-09
* Optimize headersPerttu Ahola2012-06-17
* Properly and efficiently use split utility headersPerttu Ahola2012-06-17
* Switch the license to be LGPLv2/later, with small parts still remaining as GP...Perttu Ahola2012-06-05
* ObjectRef:set_armor_groups() and ObjectRef:set_properties() - works on player...Perttu Ahola2012-03-30
'#n464'>464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017
/*
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 "settings.h"
#include "irrlichttypes_bloated.h"
#include "exceptions.h"
#include "threading/mutex_auto_lock.h"
#include "strfnd.h"
#include <iostream>
#include <fstream>
#include <sstream>
#include "debug.h"
#include "log.h"
#include "util/serialize.h"
#include "filesys.h"
#include "noise.h"
#include <cctype>
#include <algorithm>

static Settings main_settings;
Settings *g_settings = &main_settings;
std::string g_settings_path;

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


Settings & Settings::operator += (const Settings &other)
{
	update(other);

	return *this;
}


Settings & Settings::operator = (const Settings &other)
{
	if (&other == this)
		return *this;

	MutexAutoLock lock(m_mutex);
	MutexAutoLock lock2(other.m_mutex);

	clearNoLock();
	updateNoLock(other);

	return *this;
}


bool Settings::checkNameValid(const std::string &name)
{
	bool valid = name.find_first_of("=\"{}#") == std::string::npos;
	if (valid) valid = trim(name) == name;
	if (!valid) {
		errorstream << "Invalid setting name \"" << name << "\""
			<< std::endl;
		return false;
	}
	return true;
}


bool Settings::checkValueValid(const std::string &value)
{
	if (value.substr(0, 3) == "\"\"\"" ||
		value.find("\n\"\"\"") != std::string::npos) {
		errorstream << "Invalid character sequence '\"\"\"' found in"
			" setting value!" << std::endl;
		return false;
	}
	return true;
}


std::string Settings::sanitizeName(const std::string &name)
{
	std::string n = trim(name);

	for (const char *s = "=\"{}#"; *s; s++)
		n.erase(std::remove(n.begin(), n.end(), *s), n.end());

	return n;
}


std::string Settings::sanitizeValue(const std::string &value)
{
	std::string v(value);
	size_t p = 0;

	if (v.substr(0, 3) == "\"\"\"")
		v.erase(0, 3);

	while ((p = v.find("\n\"\"\"")) != std::string::npos)
		v.erase(p, 4);

	return v;
}


std::string Settings::getMultiline(std::istream &is, size_t *num_lines)
{
	size_t lines = 1;
	std::string value;
	std::string line;

	while (is.good()) {
		lines++;
		std::getline(is, line);
		if (line == "\"\"\"")
			break;
		value += line;
		value.push_back('\n');
	}

	size_t len = value.size();
	if (len)
		value.erase(len - 1);

	if (num_lines)
		*num_lines = lines;

	return value;
}


bool Settings::readConfigFile(const char *filename)
{
	std::ifstream is(filename);
	if (!is.good())
		return false;

	return parseConfigLines(is, "");
}


bool Settings::parseConfigLines(std::istream &is, const std::string &end)
{
	MutexAutoLock lock(m_mutex);

	std::string line, name, value;

	while (is.good()) {
		std::getline(is, line);
		SettingsParseEvent event = parseConfigObject(line, end, name, value);

		switch (event) {
		case SPE_NONE:
		case SPE_INVALID:
		case SPE_COMMENT:
			break;
		case SPE_KVPAIR:
			m_settings[name] = SettingsEntry(value);
			break;
		case SPE_END:
			return true;
		case SPE_GROUP: {
			Settings *group = new Settings;
			if (!group->parseConfigLines(is, "}")) {
				delete group;
				return false;
			}
			m_settings[name] = SettingsEntry(group);
			break;
		}
		case SPE_MULTILINE:
			m_settings[name] = SettingsEntry(getMultiline(is));
			break;
		}
	}

	return end.empty();
}


void Settings::writeLines(std::ostream &os, u32 tab_depth) const
{
	MutexAutoLock lock(m_mutex);

	for (std::map<std::string, SettingsEntry>::const_iterator
			it = m_settings.begin();
			it != m_settings.end(); ++it)
		printEntry(os, it->first, it->second, tab_depth);
}


void Settings::printEntry(std::ostream &os, const std::string &name,
	const SettingsEntry &entry, u32 tab_depth)
{
	for (u32 i = 0; i != tab_depth; i++)
		os << "\t";

	if (entry.is_group) {
		os << name << " = {\n";

		entry.group->writeLines(os, tab_depth + 1);

		for (u32 i = 0; i != tab_depth; i++)
			os << "\t";
		os << "}\n";
	} else {
		os << name << " = ";

		if (entry.value.find('\n') != std::string::npos)
			os << "\"\"\"\n" << entry.value << "\n\"\"\"\n";
		else
			os << entry.value << "\n";
	}
}


bool Settings::updateConfigObject(std::istream &is, std::ostream &os,
	const std::string &end, u32 tab_depth)
{
	std::map<std::string, SettingsEntry>::const_iterator it;
	std::set<std::string> present_entries;
	std::string line, name, value;
	bool was_modified = false;
	bool end_found = false;

	// Add any settings that exist in the config file with the current value
	// in the object if existing
	while (is.good() && !end_found) {
		std::getline(is, line);
		SettingsParseEvent event = parseConfigObject(line, end, name, value);

		switch (event) {
		case SPE_END:
			os << line << (is.eof() ? "" : "\n");
			end_found = true;
			break;
		case SPE_MULTILINE:
			value = getMultiline(is);
			/* FALLTHROUGH */
		case SPE_KVPAIR:
			it = m_settings.find(name);
			if (it != m_settings.end() &&
				(it->second.is_group || it->second.value != value)) {
				printEntry(os, name, it->second, tab_depth);
				was_modified = true;
			} else {
				os << line << "\n";
				if (event == SPE_MULTILINE)
					os << value << "\n\"\"\"\n";
			}
			present_entries.insert(name);
			break;
		case SPE_GROUP:
			it = m_settings.find(name);
			if (it != m_settings.end() && it->second.is_group) {
				os << line << "\n";
				sanity_check(it->second.group != NULL);
				was_modified |= it->second.group->updateConfigObject(is, os,
					"}", tab_depth + 1);
			} else {
				printEntry(os, name, it->second, tab_depth);
				was_modified = true;
			}
			present_entries.insert(name);
			break;
		default:
			os << line << (is.eof() ? "" : "\n");
			break;
		}
	}

	// Add any settings in the object that don't exist in the config file yet
	for (it = m_settings.begin(); it != m_settings.end(); ++it) {
		if (present_entries.find(it->first) != present_entries.end())
			continue;

		printEntry(os, it->first, it->second, tab_depth);
		was_modified = true;
	}

	return was_modified;
}


bool Settings::updateConfigFile(const char *filename)
{
	MutexAutoLock lock(m_mutex);

	std::ifstream is(filename);
	std::ostringstream os(std::ios_base::binary);

	bool was_modified = updateConfigObject(is, os, "");
	is.close();

	if (!was_modified)
		return true;

	if (!fs::safeWriteToFile(filename, os.str())) {
		errorstream << "Error writing configuration file: \""
			<< filename << "\"" << std::endl;
		return false;
	}

	return true;
}


bool Settings::parseCommandLine(int argc, char *argv[],
		std::map<std::string, ValueSpec> &allowed_options)
{
	int nonopt_index = 0;
	for (int i = 1; i < argc; i++) {
		std::string arg_name = argv[i];
		if (arg_name.substr(0, 2) != "--") {
			// If option doesn't start with -, read it in as nonoptX
			if (arg_name[0] != '-'){
				std::string name = "nonopt";
				name += itos(nonopt_index);
				set(name, arg_name);
				nonopt_index++;
				continue;
			}
			errorstream << "Invalid command-line parameter \""
					<< arg_name << "\": --<option> expected." << std::endl;
			return false;
		}

		std::string name = arg_name.substr(2);

		std::map<std::string, ValueSpec>::iterator n;
		n = allowed_options.find(name);
		if (n == allowed_options.end()) {
			errorstream << "Unknown command-line parameter \""
					<< arg_name << "\"" << std::endl;
			return false;
		}

		ValueType type = n->second.type;

		std::string value = "";

		if (type == VALUETYPE_FLAG) {
			value = "true";
		} else {
			if ((i + 1) >= argc) {
				errorstream << "Invalid command-line parameter \""
						<< name << "\": missing value" << std::endl;
				return false;
			}
			value = argv[++i];
		}

		set(name, value);
	}

	return true;
}



/***********
 * Getters *
 ***********/


const SettingsEntry &Settings::getEntry(const std::string &name) const
{
	MutexAutoLock lock(m_mutex);

	std::map<std::string, SettingsEntry>::const_iterator n;
	if ((n = m_settings.find(name)) == m_settings.end()) {
		if ((n = m_defaults.find(name)) == m_defaults.end())
			throw SettingNotFoundException("Setting [" + name + "] not found.");
	}
	return n->second;
}


Settings *Settings::getGroup(const std::string &name) const
{
	const SettingsEntry &entry = getEntry(name);
	if (!entry.is_group)
		throw SettingNotFoundException("Setting [" + name + "] is not a group.");
	return entry.group;
}


std::string Settings::get(const std::string &name) const
{
	const SettingsEntry &entry = getEntry(name);
	if (entry.is_group)
		throw SettingNotFoundException("Setting [" + name + "] is a group.");
	return entry.value;
}


bool Settings::getBool(const std::string &name) const
{
	return is_yes(get(name));
}


u16 Settings::getU16(const std::string &name) const
{
	return stoi(get(name), 0, 65535);
}


s16 Settings::getS16(const std::string &name) const
{
	return stoi(get(name), -32768, 32767);
}


s32 Settings::getS32(const std::string &name) const
{
	return stoi(get(name));
}


float Settings::getFloat(const std::string &name) const
{
	return stof(get(name));
}


u64 Settings::getU64(const std::string &name) const
{
	u64 value = 0;
	std::string s = get(name);
	std::istringstream ss(s);
	ss >> value;
	return value;
}


v2f Settings::getV2F(const std::string &name) const
{
	v2f value;
	Strfnd f(get(name));
	f.next("(");
	value.X = stof(f.next(","));
	value.Y = stof(f.next(")"));
	return value;
}


v3f Settings::getV3F(const std::string &name) const
{
	v3f value;
	Strfnd f(get(name));
	f.next("(");
	value.X = stof(f.next(","));
	value.Y = stof(f.next(","));
	value.Z = stof(f.next(")"));
	return value;
}


u32 Settings::getFlagStr(const std::string &name, const FlagDesc *flagdesc,
	u32 *flagmask) const
{
	std::string val = get(name);
	return std::isdigit(val[0])
		? stoi(val)
		: readFlagString(val, flagdesc, flagmask);
}


// N.B. if getStruct() is used to read a non-POD aggregate type,
// the behavior is undefined.
bool Settings::getStruct(const std::string &name, const std::string &format,
	void *out, size_t olen) const
{
	std::string valstr;

	try {
		valstr = get(name);
	} catch (SettingNotFoundException &e) {
		return false;
	}

	if (!deSerializeStringToStruct(valstr, format, out, olen))
		return false;

	return true;
}


bool Settings::getNoiseParams(const std::string &name, NoiseParams &np) const
{
	return getNoiseParamsFromGroup(name, np) || getNoiseParamsFromValue(name, np);
}


bool Settings::getNoiseParamsFromValue(const std::string &name,
	NoiseParams &np) const
{
	std::string value;

	if (!getNoEx(name, value))
		return false;

	Strfnd f(value);

	np.offset   = stof(f.next(","));
	np.scale    = stof(f.next(","));
	f.next("(");
	np.spread.X = stof(f.next(","));
	np.spread.Y = stof(f.next(","));
	np.spread.Z = stof(f.next(")"));
	f.next(",");
	np.seed     = stoi(f.next(","));
	np.octaves  = stoi(f.next(","));
	np.persist  = stof(f.next(","));

	std::string optional_params = f.next("");
	if (optional_params != "")
		np.lacunarity = stof(optional_params);

	return true;
}


bool Settings::getNoiseParamsFromGroup(const std::string &name,
	NoiseParams &np) const
{
	Settings *group = NULL;

	if (!getGroupNoEx(name, group))
		return false;

	group->getFloatNoEx("offset",      np.offset);
	group->getFloatNoEx("scale",       np.scale);
	group->getV3FNoEx("spread",        np.spread);
	group->getS32NoEx("seed",          np.seed);
	group->getU16NoEx("octaves",       np.octaves);
	group->getFloatNoEx("persistence", np.persist);
	group->getFloatNoEx("lacunarity",  np.lacunarity);

	np.flags = 0;
	if (!group->getFlagStrNoEx("flags", np.flags, flagdesc_noiseparams))
		np.flags = NOISE_FLAG_DEFAULTS;

	return true;
}


bool Settings::exists(const std::string &name) const
{
	MutexAutoLock lock(m_mutex);

	return (m_settings.find(name) != m_settings.end() ||
		m_defaults.find(name) != m_defaults.end());
}


std::vector<std::string> Settings::getNames() const
{
	std::vector<std::string> names;
	for (std::map<std::string, SettingsEntry>::const_iterator
			i = m_settings.begin();
			i != m_settings.end(); ++i) {
		names.push_back(i->first);
	}
	return names;
}



/***************************************
 * Getters that don't throw exceptions *
 ***************************************/

bool Settings::getEntryNoEx(const std::string &name, SettingsEntry &val) const
{
	try {
		val = getEntry(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getGroupNoEx(const std::string &name, Settings *&val) const
{
	try {
		val = getGroup(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getNoEx(const std::string &name, std::string &val) const
{
	try {
		val = get(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getFlag(const std::string &name) const
{
	try {
		return getBool(name);
	} catch(SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getFloatNoEx(const std::string &name, float &val) const
{
	try {
		val = getFloat(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getU16NoEx(const std::string &name, u16 &val) const
{
	try {
		val = getU16(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getS16NoEx(const std::string &name, s16 &val) const
{
	try {
		val = getS16(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getS32NoEx(const std::string &name, s32 &val) const
{
	try {
		val = getS32(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getU64NoEx(const std::string &name, u64 &val) const
{
	try {
		val = getU64(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getV2FNoEx(const std::string &name, v2f &val) const
{
	try {
		val = getV2F(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getV3FNoEx(const std::string &name, v3f &val) const
{
	try {
		val = getV3F(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


// N.B. getFlagStrNoEx() does not set val, but merely modifies it.  Thus,
// val must be initialized before using getFlagStrNoEx().  The intention of
// this is to simplify modifying a flags field from a default value.
bool Settings::getFlagStrNoEx(const std::string &name, u32 &val,
	FlagDesc *flagdesc) const
{
	try {
		u32 flags, flagmask;

		flags = getFlagStr(name, flagdesc, &flagmask);

		val &= ~flagmask;
		val |=  flags;

		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


/***********
 * Setters *
 ***********/

bool Settings::setEntry(const std::string &name, const void *data,
	bool set_group, bool set_default)
{
	Settings *old_group = NULL;

	if (!checkNameValid(name))
		return false;
	if (!set_group && !checkValueValid(*(const std::string *)data))
		return false;

	{
		MutexAutoLock lock(m_mutex);

		SettingsEntry &entry = set_default ? m_defaults[name] : m_settings[name];
		old_group = entry.group;

		entry.value    = set_group ? "" : *(const std::string *)data;
		entry.group    = set_group ? *(Settings **)data : NULL;
		entry.is_group = set_group;
	}

	delete old_group;

	return true;
}


bool Settings::set(const std::string &name, const std::string &value)
{
	if (!setEntry(name, &value, false, false))
		return false;

	doCallbacks(name);
	return true;
}


bool Settings::setDefault(const std::string &name, const std::string &value)
{
	return setEntry(name, &value, false, true);
}


bool Settings::setGroup(const std::string &name, Settings *group)
{
	return setEntry(name, &group, true, false);
}


bool Settings::setGroupDefault(const std::string &name, Settings *group)
{
	return setEntry(name, &group, true, true);
}


bool Settings::setBool(const std::string &name, bool value)
{
	return set(name, value ? "true" : "false");
}


bool Settings::setS16(const std::string &name, s16 value)
{
	return set(name, itos(value));
}


bool Settings::setU16(const std::string &name, u16 value)
{
	return set(name, itos(value));
}


bool Settings::setS32(const std::string &name, s32 value)
{
	return set(name, itos(value));
}


bool Settings::setU64(const std::string &name, u64 value)
{
	std::ostringstream os;
	os << value;
	return set(name, os.str());
}


bool Settings::setFloat(const std::string &name, float value)
{
	return set(name, ftos(value));
}


bool Settings::setV2F(const std::string &name, v2f value)
{
	std::ostringstream os;
	os << "(" << value.X << "," << value.Y << ")";
	return set(name, os.str());
}


bool Settings::setV3F(const std::string &name, v3f value)
{
	std::ostringstream os;
	os << "(" << value.X << "," << value.Y << "," << value.Z << ")";
	return set(name, os.str());
}


bool Settings::setFlagStr(const std::string &name, u32 flags,
	const FlagDesc *flagdesc, u32 flagmask)
{
	return set(name, writeFlagString(flags, flagdesc, flagmask));
}


bool Settings::setStruct(const std::string &name, const std::string &format,
	void *value)
{
	std::string structstr;
	if (!serializeStructToString(&structstr, format, value))
		return false;

	return set(name, structstr);
}


bool Settings::setNoiseParams(const std::string &name,
	const NoiseParams &np, bool set_default)
{
	Settings *group = new Settings;

	group->setFloat("offset",      np.offset);
	group->setFloat("scale",       np.scale);
	group->setV3F("spread",        np.spread);
	group->setS32("seed",          np.seed);
	group->setU16("octaves",       np.octaves);
	group->setFloat("persistence", np.persist);
	group->setFloat("lacunarity",  np.lacunarity);
	group->setFlagStr("flags",     np.flags, flagdesc_noiseparams, np.flags);

	return setEntry(name, &group, true, set_default);
}


bool Settings::remove(const std::string &name)
{
	MutexAutoLock lock(m_mutex);

	delete m_settings[name].group;
	return m_settings.erase(name);
}


void Settings::clear()
{
	MutexAutoLock lock(m_mutex);
	clearNoLock();
}

void Settings::clearDefaults()
{
	MutexAutoLock lock(m_mutex);
	clearDefaultsNoLock();
}

void Settings::updateValue(const Settings &other, const std::string &name)
{
	if (&other == this)
		return;

	MutexAutoLock lock(m_mutex);

	try {
		std::string val = other.get(name);

		m_settings[name] = val;
	} catch (SettingNotFoundException &e) {
	}
}


void Settings::update(const Settings &other)
{
	if (&other == this)
		return;

	MutexAutoLock lock(m_mutex);
	MutexAutoLock lock2(other.m_mutex);

	updateNoLock(other);
}


SettingsParseEvent Settings::parseConfigObject(const std::string &line,
	const std::string &end, std::string &name, std::string &value)
{
	std::string trimmed_line = trim(line);

	if (trimmed_line.empty())
		return SPE_NONE;
	if (trimmed_line[0] == '#')
		return SPE_COMMENT;
	if (trimmed_line == end)
		return SPE_END;

	size_t pos = trimmed_line.find('=');
	if (pos == std::string::npos)
		return SPE_INVALID;

	name  = trim(trimmed_line.substr(0, pos));
	value = trim(trimmed_line.substr(pos + 1));

	if (value == "{")
		return SPE_GROUP;
	if (value == "\"\"\"")
		return SPE_MULTILINE;

	return SPE_KVPAIR;
}


void Settings::updateNoLock(const Settings &other)
{
	m_settings.insert(other.m_settings.begin(), other.m_settings.end());
	m_defaults.insert(other.m_defaults.begin(), other.m_defaults.end());
}


void Settings::clearNoLock()
{
	std::map<std::string, SettingsEntry>::const_iterator it;
	for (it = m_settings.begin(); it != m_settings.end(); ++it)
		delete it->second.group;
	m_settings.clear();

	clearDefaultsNoLock();
}

void Settings::clearDefaultsNoLock()
{
	std::map<std::string, SettingsEntry>::const_iterator it;
	for (it = m_defaults.begin(); it != m_defaults.end(); ++it)
		delete it->second.group;
	m_defaults.clear();
}


void Settings::registerChangedCallback(std::string name,
	setting_changed_callback cbf, void *userdata)
{
	MutexAutoLock lock(m_callbackMutex);
	m_callbacks[name].push_back(std::make_pair(cbf, userdata));
}

void Settings::deregisterChangedCallback(std::string name, setting_changed_callback cbf, void *userdata)
{
	MutexAutoLock lock(m_callbackMutex);
	std::map<std::string, std::vector<std::pair<setting_changed_callback, void*> > >::iterator iterToVector = m_callbacks.find(name);
	if (iterToVector != m_callbacks.end())
	{
		std::vector<std::pair<setting_changed_callback, void*> > &vector = iterToVector->second;

		std::vector<std::pair<setting_changed_callback, void*> >::iterator position =
			std::find(vector.begin(), vector.end(), std::make_pair(cbf, userdata));

		if (position != vector.end())
			vector.erase(position);
	}
}

void Settings::doCallbacks(const std::string name)
{
	MutexAutoLock lock(m_callbackMutex);
	std::map<std::string, std::vector<std::pair<setting_changed_callback, void*> > >::iterator iterToVector = m_callbacks.find(name);
	if (iterToVector != m_callbacks.end())
	{
		std::vector<std::pair<setting_changed_callback, void*> >::iterator iter;
		for (iter = iterToVector->second.begin(); iter != iterToVector->second.end(); ++iter)
		{
			(iter->first)(name, iter->second);
		}
	}
}