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Change twilight interval to -3 to 6

master
Kenny Levinsen 2020-10-04 19:51:03 +02:00
parent 601e15080e
commit 7c22eade9a
1 changed files with 5 additions and 5 deletions
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8
color_math.c
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@ -5,8 +5,8 @@
#include "color_math.h"
#define SOLAR_HORIZON 90.833
#define SOLAR_START_CIVIL_TWILIGHT 6.0
#define SOLAR_END_CIVIL_TWILIGHT 3.0
#define SOLAR_START_TWILIGHT 6.0
#define SOLAR_END_TWILIGHT -3.0
static int is_leap(int year) {
return (year % 4 == 0 && year % 100 != 0) || year % 400 == 0;
@ -49,8 +49,8 @@ static void sun_angle(struct tm *tm, double longitude, double latitude, time_t *
}
void sun(struct tm *tm, double longitude, double latitude, time_t *dawn, time_t *sunrise, time_t *sunset, time_t *dusk) {
sun_angle(tm, longitude, latitude, dawn, dusk, SOLAR_HORIZON + SOLAR_START_CIVIL_TWILIGHT);
sun_angle(tm, longitude, latitude, sunrise, sunset, SOLAR_HORIZON + SOLAR_END_CIVIL_TWILIGHT);
sun_angle(tm, longitude, latitude, dawn, dusk, SOLAR_HORIZON + SOLAR_START_TWILIGHT);
sun_angle(tm, longitude, latitude, sunrise, sunset, SOLAR_HORIZON + SOLAR_END_TWILIGHT);
}
static int illuminant_d(int temp, double *x, double *y) {