builtin/client/death_formspec.lua


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-- CSM death formspec. Only used when clientside modding is enabled, otherwise
-- handled by the engine.

core.register_on_death(function()
	core.display_chat_message("You died.")
	local formspec = "size[11,5.5]bgcolor[#320000b4;true]" ..
		"label[4.85,1.35;" .. fgettext("You died") ..
		"]button_exit[4,3;3,0.5;btn_respawn;".. fgettext("Respawn") .."]"
	core.show_formspec("bultin:death", formspec)
end)

core.register_on_formspec_input(function(formname, fields)
	if formname == "bultin:death" then
		core.send_respawn()
	end
end)
/*
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.
*/

#ifndef MAP_HEADER
#define MAP_HEADER

#include <jmutex.h>
#include <jmutexautolock.h>
#include <jthread.h>
#include <iostream>
#include <sstream>
#include <set>
#include <map>
#include <list>

#include "irrlichttypes_bloated.h"
#include "mapnode.h"
#include "constants.h"
#include "voxel.h"
#include "mapgen.h" //for BlockMakeData and EmergeManager
#include "modifiedstate.h"
#include "util/container.h"
#include "nodetimer.h"

extern "C" {
	#include "sqlite3.h"
}

class ClientMap;
class MapSector;
class ServerMapSector;
class MapBlock;
class NodeMetadata;
class IGameDef;
class IRollbackReportSink;
class EmergeManager;
struct BlockMakeData;


/*
	MapEditEvent
*/

#define MAPTYPE_BASE 0
#define MAPTYPE_SERVER 1
#define MAPTYPE_CLIENT 2

enum MapEditEventType{
	// Node added (changed from air or something else to something)
	MEET_ADDNODE,
	// Node removed (changed to air)
	MEET_REMOVENODE,
	// Node metadata of block changed (not knowing which node exactly)
	// p stores block coordinate
	MEET_BLOCK_NODE_METADATA_CHANGED,
	// Anything else (modified_blocks are set unsent)
	MEET_OTHER
};

struct MapEditEvent
{
	MapEditEventType type;
	v3s16 p;
	MapNode n;
	std::set<v3s16> modified_blocks;
	u16 already_known_by_peer;

	MapEditEvent():
		type(MEET_OTHER),
		already_known_by_peer(0)
	{
	}

	MapEditEvent * clone()
	{
		MapEditEvent *event = new MapEditEvent();
		event->type = type;
		event->p = p;
		event->n = n;
		event->modified_blocks = modified_blocks;
		return event;
	}

	VoxelArea getArea()
	{
		switch(type){
		case MEET_ADDNODE:
			return VoxelArea(p);
		case MEET_REMOVENODE:
			return VoxelArea(p);
		case MEET_BLOCK_NODE_METADATA_CHANGED:
		{
			v3s16 np1 = p*MAP_BLOCKSIZE;
			v3s16 np2 = np1 + v3s16(1,1,1)*MAP_BLOCKSIZE - v3s16(1,1,1);
			return VoxelArea(np1, np2);
		}
		case MEET_OTHER:
		{
			VoxelArea a;
			for(std::set<v3s16>::iterator
					i = modified_blocks.begin();
					i != modified_blocks.end(); ++i)
			{
				v3s16 p = *i;
				v3s16 np1 = p*MAP_BLOCKSIZE;
				v3s16 np2 = np1 + v3s16(1,1,1)*MAP_BLOCKSIZE - v3s16(1,1,1);
				a.addPoint(np1);
				a.addPoint(np2);
			}
			return a;
		}
		}
		return VoxelArea();
	}
};

class MapEventReceiver
{
public:
	// event shall be deleted by caller after the call.
	virtual void onMapEditEvent(MapEditEvent *event) = 0;
};

class Map /*: public NodeContainer*/
{
public:

	Map(std::ostream &dout, IGameDef *gamedef);
	virtual ~Map();

	/*virtual u16 nodeContainerId() const
	{
		return NODECONTAINER_ID_MAP;
	}*/

	virtual s32 mapType() const
	{
		return MAPTYPE_BASE;
	}

	/*
		Drop (client) or delete (server) the map.
	*/
	virtual void drop()
	{
		delete this;
	}

	void addEventReceiver(MapEventReceiver *event_receiver);
	void removeEventReceiver(MapEventReceiver *event_receiver);
	// event shall be deleted by caller after the call.
	void dispatchEvent(MapEditEvent *event);

	// On failure returns NULL
	MapSector * getSectorNoGenerateNoExNoLock(v2s16 p2d);
	// Same as the above (there exists no lock anymore)
	MapSector * getSectorNoGenerateNoEx(v2s16 p2d);
	// On failure throws InvalidPositionException
	MapSector * getSectorNoGenerate(v2s16 p2d);
	// Gets an existing sector or creates an empty one
	//MapSector * getSectorCreate(v2s16 p2d);

	/*
		This is overloaded by ClientMap and ServerMap to allow
		their differing fetch methods.
	*/
	virtual MapSector * emergeSector(v2s16 p){ return NULL; }
	virtual MapSector * emergeSector(v2s16 p,
			std::map<v3s16, MapBlock*> &changed_blocks){ return NULL; }

	// Returns InvalidPositionException if not found
	MapBlock * getBlockNoCreate(v3s16 p);
	// Returns NULL if not found
	MapBlock * getBlockNoCreateNoEx(v3s16 p);

	/* Server overrides */
	virtual MapBlock * emergeBlock(v3s16 p, bool allow_generate=true)
	{ return getBlockNoCreateNoEx(p); }

	// Returns InvalidPositionException if not found
	bool isNodeUnderground(v3s16 p);

	bool isValidPosition(v3s16 p);

	// throws InvalidPositionException if not found
	MapNode getNode(v3s16 p);

	// throws InvalidPositionException if not found
	void setNode(v3s16 p, MapNode & n);

	// Returns a CONTENT_IGNORE node if not found
	MapNode getNodeNoEx(v3s16 p);

	void unspreadLight(enum LightBank bank,
			std::map<v3s16, u8> & from_nodes,
			std::set<v3s16> & light_sources,
			std::map<v3s16, MapBlock*> & modified_blocks);

	void unLightNeighbors(enum LightBank bank,
			v3s16 pos, u8 lightwas,
			std::set<v3s16> & light_sources,
			std::map<v3s16, MapBlock*> & modified_blocks);

	void spreadLight(enum LightBank bank,
			std::set<v3s16> & from_nodes,
			std::map<v3s16, MapBlock*> & modified_blocks);

	void lightNeighbors(enum LightBank bank,
			v3s16 pos,
			std::map<v3s16, MapBlock*> & modified_blocks);

	v3s16 getBrightestNeighbour(enum LightBank bank, v3s16 p);

	s16 propagateSunlight(v3s16 start,
			std::map<v3s16, MapBlock*> & modified_blocks);

	void updateLighting(enum LightBank bank,
			std::map<v3s16, MapBlock*>  & a_blocks,