// WBWaterNormalTexGenerator.h: interface for the WBWaterNormalTexGenerator class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_WBWATERNORMALTEXGENERATOR_H__A9C62D45_472F_44BC_B49C_949E7DB8BE5D__INCLUDED_)
#define AFX_WBWATERNORMALTEXGENERATOR_H__A9C62D45_472F_44BC_B49C_949E7DB8BE5D__INCLUDED_

#if _MSC_VER > 1000
#pragma once

#endif // _MSC_VER > 1000
/* ****************************************************
	* WBWaterNormalTexGenerator.h
	* 기능 : Water Normalmap Generator Class
	         물표면의 텍스쳐를 generation 한다 ( DOT3 EMPM MAP)
    * 날짜 : 10.23.2003
	* History : wizardbug (10.23.2003)

***************************************************** */
#include <vector>

#include "WBValue.h"
/*#include "WBTexture.h"*/
#include "./WBWaterNormalTexGenShader.h"
#include "Texture.h"


#define RENDERTARGET_NUM 4
class WBWaterOffset {
public:
	D3DXVECTOR4 m_vecOffset[4];			// Texture stage Coord (0 ~ 3 Stage)
	WBWaterOffset(){}
	~WBWaterOffset(){}
};
class WBWaterQuad { 
public:
	D3DXVECTOR3 vecPos;
	D3DXVECTOR2 vecTexcoord;
	WBWaterQuad() : vecPos(0.0f,0.0f,0.0f),vecTexcoord(0.0f,0.0f) {}
	~WBWaterQuad(){}
};

class WBWaterNormalTexGenVShader;

class WBWaterNormalTexGenerator  
{
protected:
	LPDIRECT3DDEVICE8	m_pDevice;

	
	int					m_iTexSizeX;
	int					m_iTexSizeY;
	float				m_fTexelSizeX;
	float				m_fTexelSizeY;

	float m_fDropletFreq;

	float m_fPosAtten;
	float m_fEqRestore_factor;

	float m_fVelFactor;
	float m_fForceFactor;

	int					m_iChangeState;			// Normal map Generator가 Normal Map 을 얼마나 변경시켰는가.
	int					m_iFlipState;			// Texture Change Value. ( 0 or 1)
	float				m_fNormalSTScale;		// Normal map S,T vector Scale factor
	float				m_fScrollU;				// Normal map X Scroll factor 
	float				m_fScrollV;				// Normal map Y Scroll factor

	float				m_fDropletMinSize;		// 파장의 min size 
	float				m_fDropletMaxSize;		// 파장의 max size (파장은 우의 두 값 사이에서 조절)

	float				m_fWindX;				// 바람의 세기 
	float				m_fWindY;

	float				m_fBlurDist;
	
	LPDIRECT3DSURFACE8	m_pBackColorSurf;
	LPDIRECT3DSURFACE8	m_pBackDepthSurf;
	char				m_strDisplaceMap[256];
	CTexture			*m_pDisplaceMap;
	
	LPDIRECT3DTEXTURE8	m_pRenderTargetTex[RENDERTARGET_NUM];
	LPDIRECT3DSURFACE8	m_pRenderTargetSurf[RENDERTARGET_NUM];

	LPDIRECT3DVERTEXBUFFER8 m_pQuadBuffer;

	D3DXMATRIX				m_matWorldViewProject;	// Shader 용 World - view - project matrix

	int					m_iFocusTexSrc;
	LPDIRECT3DTEXTURE8	m_pFocusTexSrc;

	int					m_iFocusTexDst;
	int					m_iFocusDisTexDst;			// Displacement Texture index

	int					m_iStepTex;
	
	WBWaterNormalTexGenShader *m_pShader;
//	WBWaterNormalTexGenVShader *m_pVShader;
//	DWORD				m_dwTexOffsetVShader;
	std::vector<D3DXVECTOR3> m_DropWaters;

public:
	
	WBWaterOffset		m_TextureCoord[5];	
	

	void				Init(LPDIRECT3DDEVICE8 pDevice,int iSizeX,int iSizeY,char *strDisplaceMap);
	void				Release();
	void				Update();					// Normal map Render
	void				LoadDisplaceMap();
	void				CreateRenderTexture(int iSizeX,int iSizeY);
	void				CreateVertex();
	
	void				CreateMatrix();	
	void				CreateUvOffset(int iSizeX,int iSizeY);
	void				CreateUvBlur();

	LPDIRECT3DTEXTURE8	GetNormalTexure() { if(m_pDisplaceMap) return (LPDIRECT3DTEXTURE8)(m_pDisplaceMap->GetTexture());
											return NULL;};

	LPDIRECT3DTEXTURE8	GetNormalTexure1() { return m_pRenderTargetTex[m_iFocusDisTexDst];};

	void				BackRenderTarget();
	void				SetWaterValue();
	void				SetNormalGenRenderState();
	void				ProcessNormalMap();			// Normal map Processing(Update)
	void				SetZeroOffset(int iOff);
	void				AddDropWater( float fX, float fY, float fScale );
	void				DrawDropWaters();
	// DisplaceMap Create (Dot3X2)			
	void				CreateDot3x2EMBMMapSteps();
	void				SetWindX(float fX); 
	void				SetWindY(float fY);
	WBWaterNormalTexGenerator();
	~WBWaterNormalTexGenerator();


};

#endif // !defined(AFX_WBWATERNORMALTEXGENERATOR_H__A9C62D45_472F_44BC_B49C_949E7DB8BE5D__INCLUDED_)