//****************************************************************************
//* MODULE:         Gfx
//* FILENAME:       p_nxParticle.h
//* OWNER:          Paul Robinson
//* CREATION DATE:  3/27/2002
//****************************************************************************

#ifndef	__GFX_P_NX_WEATHER_H__
#define	__GFX_P_NX_WEATHER_H__
    
#include "gfx/nxweather.h"

namespace Nx
{

//#define WEATHER_GRID_W 65
//#define WEATHER_GRID_H 65
//
//#define WEATHER_CEL_W 32
//#define WEATHER_CEL_H 32

#define WEATHER_CEL_SIZE 128
#define WEATHER_CEL_SIZE_SHIFT 7
#define HEIGHT_TOLERANCE 30.0f
#define DROP_SIZE 16
#define DROP_SIZE_SHIFT 4
#define DROP_LAYERS 4

#define NUM_SPLASH_ACTIVE 32

typedef struct
{
	unsigned short start;
	unsigned short end;
	unsigned short index;
} sRowEntry;

class CNgcWeather : public CWeather
{
public:
							CNgcWeather();
	virtual 				~CNgcWeather();

private:					// It's all private, as it is machine specific
	void					plat_update_grid( void );
	void					plat_process( float delta_time );
	void					plat_render( void );
	void					plat_set_rain_blend_mode( uint32 blendmode_checksum, int fix );
	void					plat_set_splash_blend_mode( uint32 blendmode_checksum, int fix );
	void					plat_set_snow_blend_mode( uint32 blendmode_checksum, int fix );

	void					plat_render_splashes( float skx, float skz );
	void					plat_render_rain( float skx, float skz );
	void					plat_render_snow( float skx, float skz );

	NxNgc::sTexture *	mp_rain_texture;
	NxNgc::sTexture *	mp_snow_texture;

	unsigned char *		mp_roof_height_index;
	sRowEntry *			mp_roof_row;
	float				m_roof_height[256];
	int					m_width;
	int					m_height;

	float				m_min_x;
	float				m_min_z;

	float				m_rain_rate;
	float				m_splash_rate;
	float				m_snow_rate;

	Mth::Vector			m_grid_base;

	unsigned char		m_drop_time[DROP_SIZE*DROP_SIZE*DROP_LAYERS];
	unsigned char		m_x_offset[DROP_SIZE*DROP_SIZE*DROP_LAYERS];
	unsigned char		m_z_offset[DROP_SIZE*DROP_SIZE*DROP_LAYERS];

	uint32				m_seq;

	uint8				m_rain_blend;
	uint8				m_splash_blend;
	uint8				m_snow_blend;

	uint8				m_rain_blend_fix;
	uint8				m_splash_blend_fix;
	uint8				m_snow_blend_fix;

	float				m_splash_x[NUM_SPLASH_ACTIVE];
	float				m_splash_y[NUM_SPLASH_ACTIVE];
	float				m_splash_z[NUM_SPLASH_ACTIVE];
	int					m_splash_current_life[NUM_SPLASH_ACTIVE]; 
	int					m_current_splash;
};

/******************************************************************/
/*                                                                */
/*                                                                */
/******************************************************************/
	
} // Nx


#endif