src/guiMainMenu.cpp

/*
Minetest-c55
Copyright (C) 2010 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 General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.

You should have received a copy of the GNU 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 "mapblock.h"
#include "map.h"
// For g_settings
#include "main.h"
#include "light.h"
#include <sstream>

/*
	MapBlock
*/

MapBlock::MapBlock(Map *parent, v3s16 pos, bool dummy):
		m_parent(parent),
		m_pos(pos),
		m_modified(MOD_STATE_WRITE_NEEDED),
		is_underground(false),
		m_lighting_expired(true),
		m_day_night_differs(false),
		m_generated(false),
		m_objects(this),
		m_timestamp(BLOCK_TIMESTAMP_UNDEFINED),
		m_usage_timer(BLOCK_TIMESTAMP_UNDEFINED)
{
	data = NULL;
	if(dummy == false)
		reallocate();
	
	//m_spawn_timer = -10000;

#ifndef SERVER
	m_mesh_expired = false;
	mesh_mutex.Init();
	mesh = NULL;
	m_temp_mods_mutex.Init();
#endif
}

MapBlock::~MapBlock()
{
#ifndef SERVER
	{
		JMutexAutoLock lock(mesh_mutex);
		
		if(mesh)
		{
			mesh->drop();
			mesh = NULL;
		}
	}
#endif

	if(data)
		delete[] data;
}

bool MapBlock::isValidPositionParent(v3s16 p)
{
	if(isValidPosition(p))
	{
		return true;
	}
	else{
		return m_parent->isValidPosition(getPosRelative() + p);
	}
}

MapNode MapBlock::getNodeParent(v3s16 p)
{
	if(isValidPosition(p) == false)
	{
		return m_parent->getNode(getPosRelative() + p);
	}
	else
	{
		if(data == NULL)
			throw InvalidPositionException();
		return data[p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X];
	}
}

void MapBlock::setNodeParent(v3s16 p, MapNode & n)
{
	if(isValidPosition(p) == false)
	{
		m_parent->setNode(getPosRelative() + p, n);
	}
	else
	{
		if(data == NULL)
			throw InvalidPositionException();
		data[p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X] = n;
	}
}

MapNode MapBlock::getNodeParentNoEx(v3s16 p)
{
	if(isValidPosition(p) == false)
	{
		try{
			return m_parent->getNode(getPosRelative() + p);
		}
		catch(InvalidPositionException &e)
		{
			return MapNode(CONTENT_IGNORE);
		}
	}
	else
	{
		if(data == NULL)
		{
			return MapNode(CONTENT_IGNORE);
		}
		return data[p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X];
	}
}

#ifndef SERVER

#if 1
void MapBlock::updateMesh(u32 daynight_ratio)
{
#if 0
	/*
		DEBUG: If mesh has been generated, don't generate it again
	*/
	{
		JMutexAutoLock meshlock(mesh_mutex);
		if(mesh != NULL)
			return;
	}
#endif

	MeshMakeData data;
	data.fill(daynight_ratio, this);
	
	scene::SMesh *mesh_new = makeMapBlockMesh(&data);
	
	/*
		Replace the mesh
	*/

	replaceMesh(mesh_new);

}
#endif

void MapBlock::replaceMesh(scene::SMesh *mesh_new)
{
	mesh_mutex.Lock();

	//scene::SMesh *mesh_old = mesh[daynight_i];
	//mesh[daynight_i] = mesh_new;

	scene::SMesh *mesh_old = mesh;
	mesh = mesh_new;
	setMeshExpired(false);
	
	if(mesh_old != NULL)
	{
		// Remove hardware buffers of meshbuffers of mesh
		// NOTE: No way, this runs in a different thread and everything
		/*u32 c = mesh_old->getMeshBufferCount();
		for(u32 i=0; i<c; i++)
		{
			IMeshBuffer *buf = mesh_old->getMeshBuffer(i);
		}*/
		
		/*dstream<<"mesh_old->getReferenceCount()="
				<<mesh_old->getReferenceCount()<<std::endl;
		u32 c = mesh_old->getMeshBufferCount();
		for(u32 i=0; i<c; i++)
		{
			scene::IMeshBuffer *buf = mesh_old->getMeshBuffer(i);
			dstream<<"buf->getReferenceCount()="
					<<buf->getReferenceCount()<<std::endl;
		}*/

		// Drop the mesh
		mesh_old->drop();

		//delete mesh_old;
	}

	mesh_mutex.Unlock();
}
	
#endif // !SERVER

/*
	Propagates sunlight down through the block.
	Doesn't modify nodes that are not affected by sunlight.
	
	Returns false if sunlight at bottom block is invalid.
	Returns true if sunlight at bottom block is valid.
	Returns true if bottom block doesn't exist.

	If there is a block above, continues from it.
	If there is no block above, assumes there is sunlight, unless
	is_underground is set or highest node is water.

	All sunlighted nodes are added to light_sources.

	if remove_light==true, sets non-sunlighted nodes black.

	if black_air_left!=NULL, it is set to true if non-sunlighted
	air is left in block.
*/
bool MapBlock::propagateSunlight(core::map<v3s16, bool> & light_sources,
		bool remove_light, bool *black_air_left)
{
	// Whether the sunlight at the top of the bottom block is valid
	bool block_below_is_valid = true;
	
	v3s16 pos_relative = getPosRelative();
	
	for(s16 x=0; x<MAP_BLOCKSIZE; x++)
	{
		for(s16 z=0; z<MAP_BLOCKSIZE; z++)
		{
#if 1
			bool no_sunlight = false;
			bool no_top_block = false;
			// Check if node above block has sunlight
			try{
				MapNode n = getNodeParent(v3s16(x, MAP_BLOCKSIZE, z));
				if(n.d == CONTENT_IGNORE || n.getLight(LIGHTBANK_DAY) != LIGHT_SUN)
				{
					no_sunlight = true;
				}
			}
			catch(InvalidPositionException &e)
			{
				no_top_block = true;
				
				// NOTE: This makes over-ground roofed places sunlighted
				// Assume sunlight, unless is_underground==true
				if(is_underground)
				{
					no_sunlight = true;
				}
				else
				{
					MapNode n = getNode(v3s16(x, MAP_BLOCKSIZE-1, z));
					//if(n.d == CONTENT_WATER || n.d == CONTENT_WATERSOURCE)
					if(content_features(n.d).sunlight_propagates == false)
					{
						no_sunlight = true;
					}
				}
				// NOTE: As of now, this just would make everything dark.
				// No sunlight here
				//no_sunlight = true;
			}
#endif
#if 0 // Doesn't work; nothing gets light.
			bool no_sunlight = true;
			bool no_top_block = false;
			// Check if node above block has sunlight
			try{
				MapNode n = getNodeParent(v3s16(x, MAP_BLOCKSIZE, z));
				if(n.getLight(LIGHTBANK_DAY) == LIGHT_SUN)
				{
					no_sunlight = false;
				}
			}
			catch(InvalidPositionException &e)
			{
				no_top_block = true;
			}
#endif

			/*std::cout<<"("<<x<<","<<z<<"): "
					<<"no_top_block="<<no_top_block
					<<", is_underground="<<is_underground
					<<", no_sunlight="<<no_sunlight
					<<std::endl;*/
		
			s16 y = MAP_BLOCKSIZE-1;
			
			// This makes difference to diminishing in water.
			bool stopped_to_solid_object = false;
			
			u8 current_light = no_sunlight ? 0 : LIGHT_SUN;

			for(; y >= 0; y--)
			{
				v3s16 pos(x, y, z);
				MapNode &n = getNodeRef(pos);
				
				if(current_light == 0)
				{
					// Do nothing
				}
				else if(current_light == LIGHT_SUN && n.sunlight_propagates())
				{
					// Do nothing: Sunlight is continued
				}
				else if(n.light_propagates() == false)
				{
					/*// DEPRECATED TODO: REMOVE
					if(grow_grass)
					{
						bool upper_is_air = false;
						try
						{
							if(getNodeParent(pos+v3s16(0,1,0)).d == CONTENT_AIR)
								upper_is_air = true;
						}
						catch(InvalidPositionException &e)
						{
						}
						// Turn mud into grass
						if(upper_is_air && n.d == CONTENT_MUD
								&& current_light == LIGHT_SUN)
						{
							n.d = CONTENT_GRASS;
						}
					}*/

					// A solid object is on the way.
					stopped_to_solid_object = true;
					
					// Light stops.
					current_light = 0;
				}
				else
				{
					// Diminish light
					current_light = diminish_light(current_light);
				}

				u8 old_light = n.getLight(LIGHTBANK_DAY);

				if(current_light > old_light || remove_light)
				{
					n.setLight(LIGHTBANK_DAY, current_light);
				}
				
				if(diminish_light(current_light) != 0)
				{
					light_sources.insert(pos_relative + pos, true);
				}

				if(current_light == 0 && stopped_to_solid_object)
				{
					if(black_air_left)
					{
						*black_air_left = true;
					}
				}
			}

			// Whether or not the block below should see LIGHT_SUN
			bool sunlight_should_go_down = (current_light == LIGHT_SUN);

			/*
				If the block below hasn't already been marked invalid:

				Check if the node below the block has proper sunlight at top.
				If not, the block below is invalid.
				
				Ignore non-transparent nodes as they always have no light
			*/
			try
			{
			if(block_below_is_valid)
			{
				MapNode n = getNodeParent(v3s16(x, -1, z));
				if(n.light_propagates())
				{
					if(n.getLight(LIGHTBANK_DAY) == LIGHT_SUN
							&& sunlight_should_go_down == false)
						block_below_is_valid = false;
					else if(n.getLight(LIGHTBANK_DAY) != LIGHT_SUN
							&& sunlight_should_go_down == true)
						block_below_is_valid = false;
				}
			}//if
			}//try
			catch(InvalidPositionException &e)
			{
				/*std::cout<<"InvalidBlockException for bottom block node"
						<<std::endl;*/
				// Just no block below, no need to panic.
			}
		}
	}

	return block_below_is_valid;
}


void MapBlock::copyTo(VoxelManipulator &dst)
{
	v3s16 data_size(MAP_BLOCKSIZE, MAP_BLOCKSIZE, MAP_BLOCKSIZE);
	VoxelArea data_area(v3s16(0,0,0), data_size - v3s16(1,1,1));
	
	// Copy from data to VoxelManipulator
	dst.copyFrom(data, data_area, v3s16(0,0,0),
			getPosRelative(), data_size);
}

void MapBlock::copyFrom(VoxelManipulator &dst)
{
	v3s16 data_size(MAP_BLOCKSIZE, MAP_BLOCKSIZE, MAP_BLOCKSIZE);
	VoxelArea data_area(v3s16(0,0,0), data_size - v3s16(1,1,1));
	
	// Copy from VoxelManipulator to data
	dst.copyTo(data, data_area, v3s16(0,0,0),
			getPosRelative(), data_size);
}

void MapBlock::stepObjects(float dtime, bool server, u32 daynight_ratio)
{
	/*
		Step objects
	*/
	m_objects.step(dtime, server, daynight_ratio);

	setChangedFlag();
}


void MapBlock::updateDayNightDiff()
{
	if(data == NULL)
	{
		m_day_night_differs = false;
		return;
	}

	bool differs = false;

	/*
		Check if any lighting value differs
	*/
	for(u32 i=0; i<MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE; i++)
	{
		MapNode &n = data[i];
		if(n.getLight(LIGHTBANK_DAY) != n.getLight(LIGHTBANK_NIGHT))
		{
			differs = true;
			break;
		}
	}

	/*
		If some lighting values differ, check if the whole thing is
		just air. If it is, differ = false
	*/
	if(differs)
	{
		bool only_air = true;
		for(u32 i=0; i<MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE; i++)
		{
			MapNode &n = data[i];
			if(n.d != CONTENT_AIR)
			{
				only_air = false;
				break;
			}
		}
		if(only_air)
			differs = false;
	}

	// Set member variable
	m_day_night_differs = differs;
}

s16 MapBlock::getGroundLevel(v2s16 p2d)
{
	if(isDummy())
		return -3;
	try
	{
		s16 y = MAP_BLOCKSIZE-1;
		for(; y>=0; y--)
		{
			//if(is_ground_content(getNodeRef(p2d.X, y, p2d.Y).d))
			if(content_features(getNodeRef(p2d.X, y, p2d.Y).d).walkable)
			{
				if(y == MAP_BLOCKSIZE-1)
					return -2;
				else
					return y;
			}
		}
		return -1;
	}
	catch(InvalidPositionException &e)
	{
		return -3;
	}
}

/*
	Serialization
*/

void MapBlock::serialize(std::ostream &os, u8 version)
{
	if(!ser_ver_supported(version))
		throw VersionMismatchException("ERROR: MapBlock format not supported");
	
	if(data == NULL)
	{
		throw SerializationError("ERROR: Not writing dummy block.");
	}
	
	// These have no compression
	if(version <= 3 || version == 5 || version == 6)
	{
		u32 nodecount = MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE;
		
		u32 buflen = 1 + nodecount * MapNode::serializedLength(version);
		SharedBuffer<u8> dest(buflen);

		dest[0] = is_underground;
		for(u32 i=0; i<nodecount; i++)
		{
			u32 s = 1 + i * MapNode::serializedLength(version);
			data[i].serialize(&dest[s], version);
		}
		
		os.write((char*)*dest, dest.getSize());
	}
	else if(version <= 10)
	{
		/*
			With compression.
			Compress the materials and the params separately.
		*/
		
		// First byte
		os.write((char*)&is_underground, 1);

		u32 nodecount = MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE;

		// Get and compress materials
		SharedBuffer<u8> materialdata(nodecount);
		for(u32 i=0; i<nodecount; i++)
		{
			materialdata[i] = data[i].d;
		}
		compress(materialdata, os, version);

		// Get and compress lights
		SharedBuffer<u8> lightdata(nodecount);
		for(u32 i=0; i<nodecount; i++)
		{
			lightdata[i] = data[i].param;
		}
		compress(lightdata, os, version);
		
		if(version >= 10)
		{
			// Get and compress param2
			SharedBuffer<u8> param2data(nodecount);
			for(u32 i=0; i<nodecount; i++)
			{
				param2data[i] = data[i].param2;
			}
			compress(param2data, os, version);
		}
	}
	// All other versions (newest)
	else
	{
		// First byte
		u8 flags = 0;
		if(is_underground)
			flags |= 0x01;
		if(m_day_night_differs)
			flags |= 0x02;
		if(m_lighting_expired)
			flags |= 0x04;
		if(version >= 18)
		{
			if(m_generated == false)
				flags |= 0x08;
		}
		os.write((char*)&flags, 1);

		u32 nodecount = MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE;

		/*
			Get data
		*/

		SharedBuffer<u8> databuf(nodecount*3);

		// Get contents
		for(u32 i=0; i<nodecount; i++)
		{
			databuf[i] = data[i].d;
		}

		// Get params
		for(u32 i=0; i<nodecount; i++)
		{
			databuf[i+nodecount] = data[i].param;
		}

		// Get param2
		for(u32 i=0; i<nodecount; i++)
		{
			databuf[i+nodecount*2] = data[i].param2;
		}

		/*
			Compress data to output stream
		*/

		compress(databuf, os, version);
		
		/*
			NodeMetadata
		*/
		if(version >= 14)
		{
			if(version <= 15)
			{
				try{
					std::ostringstream oss(std::ios_base::binary);
					m_node_metadata.serialize(oss);
					os<<serializeString(oss.str());
				}
				// This will happen if the string is longer than 65535
				catch(SerializationError &e)
				{
					// Use an empty string
					os<<serializeString("");
				}
			}
			else
			{
				std::ostringstream oss(std::ios_base::binary);
				m_node_metadata.serialize(oss);
				compressZlib(oss.str(), os);
				//os<<serializeLongString(oss.str());
			}
		}
	}
}

void MapBlock::deSerialize(std::istream &is, u8 version)
{
	if(!ser_ver_supported(version))
		throw VersionMismatchException("ERROR: MapBlock format not supported");

	// These have no lighting info
	if(version <= 1)
	{
		setLightingExpired(true);
	}

	// These have no "generated" field
	if(version < 18)
	{
		m_generated = true;
	}

	// These have no compression
	if(version <= 3 || version == 5 || version == 6)
	{
		u32 nodecount = MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE;
		char tmp;
		is.read(&tmp, 1);
		if(is.gcount() != 1)
			throw SerializationError
					("MapBlock::deSerialize: no enough input data");
		is_underground = tmp;
		for(u32 i=0; i<nodecount; i++)
		{
			s32 len = MapNode::serializedLength(version);
			SharedBuffer<u8> d(len);
			is.read((char*)*d, len);
			if(is.gcount() != len)
				throw SerializationError
						("MapBlock::deSerialize: no enough input data");
			data[i].deSerialize(*d, version);
		}
	}
	else if(version <= 10)
	{
		u32 nodecount = MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE;

		u8 t8;
		is.read((char*)&t8, 1);
		is_underground = t8;

		{
			// Uncompress and set material data
			std::ostringstream os(std::ios_base::binary);
			decompress(is, os, version);
			std::string s = os.str();
			if(s.size() != nodecount)
				throw SerializationError
						("MapBlock::deSerialize: invalid format");
			for(u32 i=0; i<s.size(); i++)
			{
				data[i].d = s[i];
			}
		}
		{
			// Uncompress and set param data
			std::ostringstream os(std::ios_base::binary);
			decompress(is, os, version);
			std::string s = os.str();
			if(s.size() != nodecount)
				throw SerializationError
						("MapBlock::deSerialize: invalid format");
			for(u32 i=0; i<s.size(); i++)
			{
				data[i].param = s[i];
			}
		}
	
		if(version >= 10)
		{
			// Uncompress and set param2 data
			std::ostringstream os(std::ios_base::binary);
			decompress(is, os, version);
			std::string s = os.str();
			if(s.size() != nodecount)
				throw SerializationError
						("MapBlock::deSerialize: invalid format");
			for(u32 i=0; i<s.size(); i++)
			{
				data[i].param2 = s[i];
			}
		}
	}
	// All other versions (newest)
	else
	{
		u32 nodecount = MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE;

		u8 flags;
		is.read((char*)&flags, 1);
		is_underground = (flags & 0x01) ? true : false;
		m_day_night_differs = (flags & 0x02) ? true : false;
		m_lighting_expired = (flags & 0x04) ? true : false;
		if(version >= 18)
			m_generated = (flags & 0x08) ? false : true;

		// Uncompress data
		std::ostringstream os(std::ios_base::binary);
		decompress(is, os, version);
		std::string s = os.str();
		if(s.size() != nodecount*3)
			throw SerializationError
					("MapBlock::deSerialize: decompress resulted in size"
					" other than nodecount*3");

		// Set contents
		for(u32 i=0; i<nodecount; i++)
		{
			data[i].d = s[i];
		}
		// Set params
		for(u32 i=0; i<nodecount; i++)
		{
			data[i].param = s[i+nodecount];
		}
		// Set param2
		for(u32 i=0; i<nodecount; i++)
		{
			data[i].param2 = s[i+nodecount*2];
		}
		
		/*
			NodeMetadata
		*/
		if(version >= 14)
		{
			// Ignore errors
			try{
				if(version <= 15)
				{
					std::string data = deSerializeString(is);
					std::istringstream iss(data, std::ios_base::binary);
					m_node_metadata.deSerialize(iss);
				}
				else
				{
					//std::string data = deSerializeLongString(is);
					std::ostringstream oss(std::ios_base::binary);
					decompressZlib(is, oss);
					std::istringstream iss(oss.str(), std::ios_base::binary);
					m_node_metadata.deSerialize(iss);
				}
			}
			catch(SerializationError &e)
			{
				dstream<<"WARNING: MapBlock::deSerialize(): Ignoring an error"
						<<" while deserializing node metadata"<<std::endl;
			}
		}
	}
	
	/*
		Translate nodes as specified in the translate_to fields of
		node features

		NOTE: This isn't really used. Should it be removed?
	*/
	for(u32 i=0; i<MAP_BLOCKSIZE*MAP_BLOCKSIZE*MAP_BLOCKSIZE; i++)
	{
		MapNode &n = data[i];

		MapNode *translate_to = content_features(n.d).translate_to;
		if(translate_to)
		{
			dstream<<"MapBlock: WARNING: Translating node "<<n.d<<" to "
					<<translate_to->d<<std::endl;
			n = *translate_to;
		}
	}
}

void MapBlock::serializeDiskExtra(std::ostream &os, u8 version)
{
	// Versions up from 9 have block objects.
	if(version >= 9)
	{
		//serializeObjects(os, version); // DEPRECATED
		// count=0
		writeU16(os, 0);
	}
	
	// Versions up from 15 have static objects.
	if(version >= 15)
	{
		m_static_objects.serialize(os);
	}

	// Timestamp
	if(version >= 17)
	{
		writeU32(os, getTimestamp());
	}
}

void MapBlock::deSerializeDiskExtra(std::istream &is, u8 version)
{
	/*
		Versions up from 9 have block objects.
	*/
	if(version >= 9)
	{
		updateObjects(is, version, NULL, 0);
	}

	/*
		Versions up from 15 have static objects.
	*/
	if(version >= 15)
	{
		m_static_objects.deSerialize(is);
	}
		
	// Timestamp
	if(version >= 17)
	{
		setTimestamp(readU32(is));
	}
	else
	{
		setTimestamp(BLOCK_TIMESTAMP_UNDEFINED);
	}
}


//END
	Commit message (Collapse)	Author	Age
*	Move kahrl to core devs in credits tab	PilzAdam	2013-05-17
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*	Only use game filter in singleplayer tab; use menu_{background, overlay, ↵	PilzAdam	2013-05-13
\| \| \| \|	header, footer}.png for other tabs
*	Fix gettext memory leaks	sapier	2013-05-10
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*	Fix world selection a bit (also fixes a main menu segfault)	Kahrl	2013-05-08
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*	Show game name instead of game ID of selected game	PilzAdam	2013-05-02
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*	Pre-select current game in world creation dialog	Perttu Ahola	2013-05-02
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*	Filter worlds by selected game	Perttu Ahola	2013-05-02
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*	Get menu background image from selected game	Perttu Ahola	2013-05-02
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*	Move sfan5 to core devs	PilzAdam	2013-05-01
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*	kahrl is back	PilzAdam	2013-04-25
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*	fix memory leaks introduced by invalid gettext usage	sapier	2013-04-07
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*	Check if the address field is empty when hitting enter on the multiplayer tab	ShadowNinja	2013-04-03
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*	Make the textbox for serverlist title wider	PilzAdam	2013-03-30
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*	GUI: Make singleplayer default tab, store selected serverlist, show title of ↵	PilzAdam	2013-03-30
\| \| \| \|	serverlist
*	Update Credits tab	kwolekr	2013-03-29
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*	Set of changes to build mineTest using Visual Studio 11.0. These affect	Mukul Sati	2013-03-24
\| \| \| \| \| \| \| \| \| \| \| \| \|	the following: 1. String concatenation in guiMainMenu.cpp - it is required for all individual strings to be of the same type <unicode/non-unicode>; adding explicit L qualifier before the other strings. 2. Correcting type of BlockMakeData to struct in place of class forward declarations. This information is used for name decoration by Visual Studio, leading to linker errors in case of mismatches. 3. Windows headers define max as a macro somewhere, leading to a compile time error in profiler.h; using () around function to prevent macro match from occurring.
*	Random guest name and finite liquid checkbox	proller	2013-03-23
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*	Remove 'tape and glue', update Credits tab	kwolekr	2013-03-14
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*	Add cloud menu background by Krisi, configurable with the menu_clouds option.	ShadowNinja	2013-03-13
\| \| \| \| \|	Also add a menuheader, menusplash, menufooter_clouds, and allow HD menu footers. And finally don't git-ignore textures/base/.
*	Update Copyright Years	Sfan5	2013-02-24
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*	Change Minetest-c55 to Minetest	PilzAdam	2013-02-24
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*	new auto masterserver	proller	2013-02-22
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*	Add Freetype support	Ilya Zhuravlev	2013-02-14
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*	Fix crash when pressing delete button in server browser and no server is ↵	Jürgen Doser	2013-01-22
\| \| \| \| \| \| \|	selected. A check for that was there, but was comparing an unsigned variable to -1, which doesn't work.
*	Fix crash when no world is selected and configure button is pressed.	Jürgen Doser	2013-01-22
\| \| \| \|	by moving return statement out of if-then-else clause...
*	Basic support for configuring which mods to load for each world	Jürgen Doser	2013-01-21
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	settings.h: added function to return all keys used in settings, and a function to remove a setting mods.{h,cpp}: added class ModConfiguration that represents a subset of the installed mods. server.{h,cpp}: server does not load add-on mods that are disabled in the world.mt file. mods are disabled by a setting of the form "load_mod_<modname> = false". if no load_mod_<modname> = ... setting is found, the mod is loaded anyways for backwards compatibilty. server also complains to errorstream about mods with unstatisfied dependencies and about mods that are not installed. guiConfigureWorld.{h,cpp}: shows a treeview of installed add-on mods and modpacks with little icons in front of their name indicating their status: a checkmark for enabled mods, a cross for disabled mods, a question mark for "new" mods Mods can be enabled/disabled by a checkbox. Mods also show a list of dependencies and reverse dependencies. double-click on a mod in dependency or reverse dependency listbox selects the corresponding mod. Enabling a mod also enables all its dependencies. Disabling a mod also disables all its reverse dependencies. For modpacks, show buttons to enable/disable all mods (recursively, including their dependencies) in it. Button "Save" saves the current settings to the world.mt file and returns to the main menu. Button "Cancel" returns to main menu without saving. basic keyboard controls (if the proper widget has keyboard focus): up/down: scroll through tree of mods left/right: collaps/expand a modpack space: enable/disable the selected mod
*	Add a list of servers to the "Multiplayer" tab	Jeija	2013-01-21
\| \| \| \| \| \| \|	If USE_CURL is set, it also downloads a list from a remote server. The url of this list is configurable in minetest.conf using the setting "serverlist_url" The local list of favorite servers is saved in client/serverlist/filename filename is also configureable using the setting "serverlist_file"
*	Add particles	Jeija	2013-01-14
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*	Update GUI texts	Perttu Ahola	2012-12-06
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*	Add checkboxes for shaders and on-demand item visual generation	obneq	2012-12-02
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*	added GUI checkboxes in Settings tab for the aforementioned video settings.	Vanessa Ezekowitz	2012-11-09
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*	Prevent world creation if the world already exists	Matthew I	2012-09-05
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*	Enforce stricter world names using a blacklist	Matthew I	2012-09-05
\| \| \| \|	Blacklisted characters are: / \
*	Add a random-ish contributor list to credit screen	Perttu Ahola	2012-07-21
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*	Properly and efficiently use split utility headers	Perttu Ahola	2012-06-17
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*	Switch the license to be LGPLv2/later, with small parts still remaining as ↵	Perttu Ahola	2012-06-05
\| \| \| \|	GPLv2/later, by agreement of major contributors
*	Use gettext for more basic user interface strings	Perttu Ahola	2012-06-04
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*	Call this 0.4.dev-20120408	Perttu Ahola	2012-04-08
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*	New world removal GUI code	Perttu Ahola	2012-03-26
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*	Disable word wrap in vertical texts in main menu	Perttu Ahola	2012-03-18
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*	Do not clear address in main menu if starting a singleplayer game by double ↵	Perttu Ahola	2012-03-18
\| \| \| \|	clicking the world
*	Tune main menu	Perttu Ahola	2012-03-15
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*	Create main menu tab "Settings" for client settings	Perttu Ahola	2012-03-15
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*	Fix click areas of singleplayer checkboxes	Perttu Ahola	2012-03-15
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*	Add "simple singleplayer mode"; Fix a number of GUI things	Perttu Ahola	2012-03-15
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*	Save selected tab	Perttu Ahola	2012-03-15
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*	Menu tuning WIP	Perttu Ahola	2012-03-15
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*	Crude tab test in main menu (requires gui redesign for the additional tabs)	Perttu Ahola	2012-03-13
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*	Move keychange/connect main menu buttons a bit	Perttu Ahola	2012-03-13
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*	Add confirmation menu and make world deletion possible in GUI	Perttu Ahola	2012-03-13
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