include/weather.h

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#ifndef _WEATHER_H

#include <stdio.h>                      // Header File For Standard Input/Output
#include <GL/gl.h>
#include <GL/glu.h>
#include <SDL/SDL.h>
#ifdef __APPLE__
#include <SDL_image/SDL_image.h>
#else
#include <SDL/SDL_image.h>
#endif
#include <string>
#include <iostream>
#include <fstream>
#include <cmath>
#include <cassert>

#include "quat.h"
#include "camera.h"

#include "globals.h"

//once dewpoint gets this close to the temp, clouds begin to form.
#define CLOUD_FORMATION 20.0f

class WEATHERVARIABLE
{
public:
        float value;
        float next_value;
        float duration;
        double start_time;
        float night_dip;
        
        void Update(double abs_time);
        void Init(float minval, float maxval, float mindur, float maxdur);
        void Init(float minval, float maxval, float mindur, float maxdur, float newnightdip);
        void CalcNew(double abs_time);
        float GetVal(double abs_time);

        float valmax, valmin, durmax, durmin;
};

class WEATHERVERTEX
{
public:
        WEATHERVARIABLE components[3];
        
        void Update(double abs_time);
        void Init(float minval, float maxval, float mindur, float maxdur);
        void CalcNew(double abs_time);
        VERTEX GetVal(double abs_time);
};

class WEATHER
{
private:
        double abs_time;
        
        WEATHERVARIABLE temperature;
        WEATHERVARIABLE dewpoint;

        WEATHERVERTEX globalwind_lowfreq;
        WEATHERVERTEX globalwind_highfreq;

        //this will be added later, once it's important
        //WEATHERVERTEX localwind[9];

public:
        void Init();
        void Update(double cur_time);
        
        int GetCloudCover();
        int GetCloudFuzziness();
        VERTEX GetGlobalWind();
        int GetRainDrops();
        float GetFogDensity();
};

#define _WEATHER_H
#endif

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