/*
Minetest-c55
Copyright (C) 2010-2011 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.
*/

#ifndef NODEDEF_HEADER
#define NODEDEF_HEADER

#include "common_irrlicht.h"
#include <string>
#include <iostream>
#include <set>
#include "mapnode.h"
#ifndef SERVER
#include "tile.h"
#endif
#include "materials.h" // MaterialProperties
class ITextureSource;
class IGameDef;

enum ContentParamType
{
	CPT_NONE,
	CPT_LIGHT,
	CPT_MINERAL,
	// Direction for chests and furnaces and such
	CPT_FACEDIR_SIMPLE
};

enum LiquidType
{
	LIQUID_NONE,
	LIQUID_FLOWING,
	LIQUID_SOURCE
};

enum NodeBoxType
{
	NODEBOX_REGULAR, // Regular block; allows buildable_to
	NODEBOX_FIXED, // Static separately defined box
	NODEBOX_WALLMOUNTED, // Box for wall_mounted nodes; (top, bottom, side)
};

struct NodeBox
{
	enum NodeBoxType type;
	// NODEBOX_REGULAR (no parameters)
	// NODEBOX_FIXED
	core::aabbox3d<f32> fixed;
	// NODEBOX_WALLMOUNTED
	core::aabbox3d<f32> wall_top;
	core::aabbox3d<f32> wall_bottom;
	core::aabbox3d<f32> wall_side; // being at the -X side

	NodeBox():
		type(NODEBOX_REGULAR),
		// default is rail-like
		fixed(-BS/2, -BS/2, -BS/2, BS/2, -BS/2+BS/16., BS/2),
		// default is sign/ladder-like
		wall_top(-BS/2, BS/2-BS/16., -BS/2, BS/2, BS/2, BS/2),
		wall_bottom(-BS/2, -BS/2, -BS/2, BS/2, -BS/2+BS/16., BS/2),
		wall_side(-BS/2, -BS/2, -BS/2, -BS/2+BS/16., BS/2, BS/2)
	{}

	void serialize(std::ostream &os) const;
	void deSerialize(std::istream &is);
};

struct MapNode;
class NodeMetadata;

struct MaterialSpec
{
	std::string tname;
	bool backface_culling;
	
	MaterialSpec(const std::string &tname_="", bool backface_culling_=true):
		tname(tname_),
		backface_culling(backface_culling_)
	{}

	void serialize(std::ostream &os) const;
	void deSerialize(std::istream &is);
};

enum NodeDrawType
{
	NDT_NORMAL, // A basic solid block
	NDT_AIRLIKE, // Nothing is drawn
	NDT_LIQUID, // Do not draw face towards same kind of flowing/source liquid
	NDT_FLOWINGLIQUID, // A very special kind of thing
	NDT_GLASSLIKE, // Glass-like, don't draw faces towards other glass
	NDT_ALLFACES, // Leaves-like, draw all faces no matter what
	NDT_ALLFACES_OPTIONAL, // Fancy -> allfaces, fast -> normal
	NDT_TORCHLIKE,
	NDT_SIGNLIKE,
	NDT_PLANTLIKE,
	NDT_FENCELIKE,
	NDT_RAILLIKE,
};

#define CF_SPECIAL_COUNT 2

struct ContentFeatures
{
	/*
		Cached stuff
	*/
#ifndef SERVER
	// 0     1     2     3     4     5
	// up    down  right left  back  front 
	TileSpec tiles[6];
	video::ITexture *inventory_texture;
	// Special material/texture
	// - Currently used for flowing liquids
	video::SMaterial *special_materials[CF_SPECIAL_COUNT];
	AtlasPointer *special_aps[CF_SPECIAL_COUNT];
	u8 solidness; // Used when choosing which face is drawn
	u8 visual_solidness; // When solidness=0, this tells how it looks like<
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.
*/

#pragma once

#include <set>
#include "irr_v3d.h"
#include "mapnode.h"
#include "exceptions.h"
#include "constants.h"
#include "staticobject.h"
#include "nodemetadata.h"
#include "nodetimer.h"
#include "modifiedstate.h"
#include "util/numeric.h" // getContainerPos
#include "settings.h"
#include "mapgen/mapgen.h"

class Map;
class NodeMetadataList;
class IGameDef;
class MapBlockMesh;
class VoxelManipulator;

#define BLOCK_TIMESTAMP_UNDEFINED 0xffffffff

////
//// MapBlock modified reason flags
////

#define MOD_REASON_INITIAL                   (1 << 0)
#define MOD_REASON_REALLOCATE                (1 << 1)
#define MOD_REASON_SET_IS_UNDERGROUND        (1 << 2)
#define MOD_REASON_SET_LIGHTING_COMPLETE     (1 << 3)
#define MOD_REASON_SET_GENERATED             (1 << 4)
#define MOD_REASON_SET_NODE                  (1 << 5)
#define MOD_REASON_SET_NODE_NO_CHECK         (1 << 6)
#define MOD_REASON_SET_TIMESTAMP             (1 << 7)
#define MOD_REASON_REPORT_META_CHANGE        (1 << 8)
#define MOD_REASON_CLEAR_ALL_OBJECTS         (1 << 9)
#define MOD_REASON_BLOCK_EXPIRED             (1 << 10)
#define MOD_REASON_ADD_ACTIVE_OBJECT_RAW     (1 << 11)
#define MOD_REASON_REMOVE_OBJECTS_REMOVE     (1 << 12)
#define MOD_REASON_REMOVE_OBJECTS_DEACTIVATE (1 << 13)
#define MOD_REASON_TOO_MANY_OBJECTS          (1 << 14)
#define MOD_REASON_STATIC_DATA_ADDED         (1 << 15)
#define MOD_REASON_STATIC_DATA_REMOVED       (1 << 16)
#define MOD_REASON_STATIC_DATA_CHANGED       (1 << 17)
#define MOD_REASON_EXPIRE_DAYNIGHTDIFF       (1 << 18)
#define MOD_REASON_VMANIP                    (1 << 19)
#define MOD_REASON_UNKNOWN                   (1 << 20)

////
//// MapBlock itself
////

class MapBlock
{
public:
	MapBlock(Map *parent, v3s16 pos, IGameDef *gamedef, bool dummy=false);
	~MapBlock();

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

	Map * getParent()
	{
		return m_parent;
	}

	void reallocate()
	{
		delete[] data;
		data = new MapN
	void serialize(std::ostream &os);
	void deSerialize(std::istream &is, IGameDef *gamedef);

	/*
		Texture setters.
		
	*/
	
	// Texture setters. They also add stuff to used_texturenames.
	void setTexture(u16 i, std::string name);
	void setAllTextures(std::string name);
	void setSpecialMaterial(u16 i, const MaterialSpec &mspec);

	void setInventoryTexture(std::string imgname);
	void setInventoryTextureCube(std::string top,
			std::string left, std::string right);
	
	/*
		Some handy methods
	*/
	bool isLiquid() const{
		return (liquid_type != LIQUID_NONE);
	}
	bool sameLiquid(const Conten

	inline u32 getModifiedReason()
	{
		return m_modified_reason;
	}

	std::string getModifiedReasonString();

	inline void resetModified()
	{
		m_modified = MOD_STATE_CLEAN;
		m_modified_reason = 0;
	}

	////
	//// Flags
	////

	inline bool isDummy() const
	{
		return !data;
	}

	inline void unDummify()
	{
		assert(isDummy()); // Pre-condition
		reallocate();
	}

	// is_underground getter/setter
	inline bool getIsUnderground()
	{
		return is_underground;
	}

	inline void setIsUnderground(bool a_is_underground)
	{
		is_underground = a_is
	virtual content_t getId(const std::string &name) const=0;
	virtual const ContentFeatures& get(const std::string &name) const=0;
	
	virtual void serialize(std::ostream &os)=0;
};

class IWritableNodeDefManager : public INodeDefManager
{
public:
	IWritableNodeDefManager(){}
	virtual ~IWritableNodeDefManager(){}
	virtual IWritableNodeDefManager* clone()=0;
	// Get node definition
	virtual const ContentFeatures& get(content_t c) const=0;
	virtual const ContentFeatures& get(const MapNode &n) const=0;
	virtual bool getId(const std::string &name, content_t &result) const=0;
	virtual content_t getId(const std::string &name) const=0;
	// If not found, returns the features of CONTENT_IGNORE
	virtual const ContentFeatures& get(const std::string &name) const=0;
		
	// Register node definition
	virtual void set(content_t c, const ContentFeatures &def)=0;
	// Register node definition by name (allocate an id)
	// If returns CONTENT_IGNORE, could not allocate id
	virtual content_t set(const std::string &name,
			const ContentFeatures &def)=0;
	// If returns CONTENT_IGNORE, could not allocate id
	virtual content_t allocateDummy(const std::string &name)=0;

	/*
		Update tile textures to latest return values of TextueSource.
		Call after updating the texture atlas of a TextureSource.
	*/
	virtual void updateTextures(ITextureSource *tsrc)=0;

	virtual void serialize(std::ostream &os)=0;
	virtual void deSerialize(std::istream &is, IGameDef *gamedef)=0;
};

IWritableNodeDefManager* createNodeDefManager();

#endif