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astro.go
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astro.go
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/*
* astro.go
*
* This file is part of wu. It contains functions related to
* the -astro switch (astronomical data).
*
* Written and maintained by Stephen Ramsay <[email protected]>
* and Anthony Starks.
*
* Last Modified: Wed Dec 18 16:11:00 CST 2013
*
* Copyright © 2010-2014 by Stephen Ramsay and Anthony Starks.
*
* wu is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* wu is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
* License for more details.
*
* You should have received a copy of the GNU General Public License
* along with wu; see the file COPYING. If not see
* <http://www.gnu.org/licenses/>.
*/
package main
import (
"fmt"
"strconv"
)
type AstroConditions struct {
Moon_phase Moon_phase
Sunrise Sunrise
Sunset Sunset
}
type Moon_phase struct {
PercentIlluminated string
AgeOfMoon string
Sunrise Sunrise
Sunset Sunset
}
type Sunrise struct {
Hour string
Minute string
}
type Sunset struct {
Hour string
Minute string
}
// printAstro prints the lunar and solar informtion for a given station to standard out
func PrintAstro(obs *AstroConditions, stationId string) {
var age, _ = strconv.Atoi(obs.Moon_phase.AgeOfMoon)
var moonDesc string
// Calculate traditional description of lunar phase
switch {
case age < 2:
moonDesc = "New moon"
case age < 6:
moonDesc = "Waxing crescent"
case age < 9:
moonDesc = "First quarter"
case age < 13:
moonDesc = "Waxing gibbous"
case age < 17:
moonDesc = "Full moon"
case age < 20:
moonDesc = "Waning gibbous"
case age < 24:
moonDesc = "Last quarter"
case age < 28:
moonDesc = "Waning crescent"
}
sr := obs.Moon_phase.Sunrise
ss := obs.Moon_phase.Sunset
percent := obs.Moon_phase.PercentIlluminated
fmt.Printf("Moon Phase: %s (%s%% illuminated)\n", moonDesc, percent)
fmt.Printf("Sunrise : %s:%s\n", sr.Hour, sr.Minute)
fmt.Printf("Sunset : %s:%s\n", ss.Hour, ss.Minute)
}