53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
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#ifndef ATMOSPHERE_H
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#define ATMOSPHERE_H
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#ifndef ATMOSPHERE_EXTERN
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#define ATMOSPHERE_EXTERN extern
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#endif
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#include "Color.h"
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#include "Point.h"
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const int weather_max_name = 64;
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class Weather {
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public:
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Weather();
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Weather(const char *n, GLfloat fd, GLfloat fs = 1, Color fc = white,
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Color s1 = blue, Color s2 = white,
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GLfloat sb = 1,
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GLenum ls = GL_LIGHT0, GLenum la = GL_LIGHT1);
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~Weather();
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Weather operator=(Weather a);
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/* The sun position is used to determine how light / dark it is */
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void apply(Point sun);
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void draw_sky(Point sun);
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/* This is how much to blur shadows due to haze or fog */
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GLfloat shadow_blur();
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char name[weather_max_name];
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GLfloat fog_density;
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Color fog_color;
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/* Fog spread relates the height to the density of the fog -- 1.0
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* leads to uniform fog */
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GLfloat fog_spread;
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Color sky_top;
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Color sky_bottom;
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GLenum light_sun, light_ambient;
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GLfloat sun_brightness;
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private:
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};
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const int nweathers = 4;
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extern Weather weathers[nweathers];
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const int def_weather_index = 0;
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#undef ATMOSPHERE_EXTERN
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#endif
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