env.h


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#ifndef ENV_H
#define ENV_H

#include "common.h"
#include "res.h"

typedef struct {
	cstr sky_sdr_key, ocean_sdr_key;

	Vec3 sun_dir;
	Vec3 moon_dir;

	Color sun_col;
	Color moon_col;
	Color ambient_col;
	Color horizon_col;
	Color zenith_col;

	f32 sun_intensity;
	f32 moon_intensity;
	f32 ambient_intensity;

	f32 day_amount;
	f32 twilight_amount;

	f32 day_cur; /* starting phase, 0 inclusive to 1 exclusive */
	f32 day_len;    /* real seconds per complete lighting cycle */
	f32 cycle;      /* current lighting phase */

	/* sun/moon textures */
	cstr sun_tex_key, moon_tex_key;
	Color sun_tint, moon_tint;
	f32 sun_sz, moon_sz;

	f32 ocean_height, ocean_time;
} Environment;

extern Environment env;

void	env_init(void);
void	env_exit(void);
void	env_update(void);
void	env_draw_sky(Camera);
void	env_draw_ocean(Camera);

#endif