/**
*******************************************************************************

  @file /gui/model/TerrainEntity.h
  @brief Predek/reprezentace tereniho prvku(strom, kamen, ..)
  

  @author Vajicek+Pavel
  @version 0.1
 
******************************************************************************/

#ifndef TERRAINENTITY_H
#define TERRAINENTITY_H

#include "gui/common/mymath.h"
//
#include "gui/engine/Scene.h"
#include "gui/engine/Effects.h"
//
#include "gui/model/ModelRep.h"
#include "gui/model/hexy.h"
//
#include "gui/common/Defs.h"
//
#include "common/rm/rminit.h"
//
#include <vector>

namespace gui{

#define POSITIONING_LAY_ON_SURFACE    1
#define POSITIONING_STAND_STRAIGHT    2
#define POSITIONING_ALIGN_TO_CENTER   4
#define POSITIONING_ALIGN_TO_MINIMUM  8

//FWD
class TTerrainEntity;

/** Model tereniho objektu. */
class TSceneTerreainObject: public TModelSceneObject, public TSimpleShadow{
public:
  TTerrainEntity* terrain;  ///< Teren do ktereho objekt patri.  
  int iPositioning;         ///< Jakym zpusobem se ma usadit na povrch terenu
  float fScale;             ///< Zvetseni napr pro stromy.
  float fRotation;          ///< Otoceni.
  /** Vykresli objekt se stinem.
    @see TModelSceneObject
  */
	virtual void drawObject();
  /** Vykresli objekt se stinem.
    @see TModelSceneObject
  */
	TSceneTerreainObject(TModel *mid, TTerrainEntity* t, int positioning);
};

/** Struktura pro reprezentaci tridy objektu na terenu. */
struct TGUITerrainObjectInfo{
  TModel* mod;      ///< model objektu
  float pvd;        ///< kumulovana pvd vyskytu
  int positioning;  ///< pozice
};

/** Popis terenu. 
  Soubor trid, ktere se na danem terenu vyskytuji.
*/
struct TGUITerrainEntityInfo{
  TGUITerrainObjectInfo* tobjs;
  int tobjs_c;        ///< pocet tpyu objektu ktery se muzou vyskytnout
  int terrobj_count;  ///< pocet objektu na jednom hexu terenu
};

#define PLACE_ITERATIONS 10

/** Proxyobjekt terenu. */
class TTerrainEntity : public TProxyObject
{
public:
  /// tereni objekty
  Tsceneobjs objs;
  
  /** Umisti teren do sceny.
  */
	TTerrainEntity(TguiMap* m);
  /** Zrus modely.
  */
	~TTerrainEntity();
  
  /** Nahodne vybere tridu objektu.
  */
  int chooseRandom(TGUITerrainObjectInfo* tobjs, int tobjs_c);  
  /** Krome standartniho pridani, to jeste upravi pozici vsech objektu.
  */
	virtual int addToHex(int newindex);
	/** Nastavi oslabeni objektu.
  */
	virtual void setFade(int newfade);
  /** Umisti objekt ve scene na nejlepsi volne misto.
  */
	virtual void placeToHex(TSceneTerreainObject *obj, int newindex);
  /** Najde volnou polohu pro objekt
  */
	virtual int findClosestFreePosition(TSceneObject* scene_obj, P3F* orig_pos, P3F* free_pos);
  /** Ladici vypis.
  */
  virtual void dump2D(FILE* f);
  
  //@{
  /** Inicializuje databazi sablon popisujicich tereny.
  */
  static void initTerrains();
  /** Rusi sablony pro tereny.
  */
  static void freeTerrains();
  //@}
};

/** Les. */
class TTerrainForest : public TTerrainEntity
{
public:
	TTerrainForest(TguiMap* m, int hx, int hy);
  //
  static TGUITerrainEntityInfo terrain_info;
  static void initForest(rm::TRM_model_i* mrm);
};

/** Hvozd. */
class TTerrainDeepForest : public TTerrainEntity
{
public:
	TTerrainDeepForest(TguiMap* m, int hx, int hy);
  //
  static TGUITerrainEntityInfo terrain_info;
  static void initDeepForest(rm::TRM_model_i* mrm);
};

/** Skaly. */
class TTerrainRocks : public TTerrainEntity
{
public:
	TTerrainRocks(TguiMap* m, int hx, int hy);
  //
  static TGUITerrainEntityInfo terrain_info;
  static void initRocks(rm::TRM_model_i* mrm);
};

/** Bazina. */
class TTerrainSwamp : public TTerrainEntity
{
public:
	TTerrainSwamp(TguiMap* m, int hx, int hy);
  //
  static TGUITerrainEntityInfo terrain_info;
  static void initSwamp(rm::TRM_model_i* mrm);
};

/** Model mestskych objektu. */
class TTownObject: public TSceneTerreainObject {
public:
	virtual void drawObject();
	TTownObject(TModel *mid, TTerrainEntity* t, int positioning);
};

/** Mesto. */
class TTerrainTown : public TTerrainEntity
{
public:
  int iOwner; ///< Hrac vlastnici mesto.
  //
	TTerrainTown(TguiMap* m, int hx, int hy);
  //
  static TGUITerrainEntityInfo terrain_info;
  static void initTown(rm::TRM_model_i* mrm);
};

}//namespace

#endif

/*****************************************************************************/