Mayan calendar: Difference between revisions
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Thundergnat (talk | contribs) m →{{header|Perl 6}}: Add some test outlier dates to demonstrate +- 50 year range |
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Line 216:
2020-02-29
2020-03-01
=={{header|Go}}==
<lang go>package main
import (
"fmt"
"strconv"
"strings"
"time"
)
var sacred = strings.Fields("Imix’ Ik’ Ak’bal K’an Chikchan Kimi Manik’ Lamat Muluk Ok Chuwen Eb Ben Hix Men K’ib’ Kaban Etz’nab’ Kawak Ajaw")
var civil = strings.Fields("Pop Wo’ Sip Sotz’ Sek Xul Yaxk’in Mol Ch’en Yax Sak’ Keh Mak K’ank’in Muwan’ Pax K’ayab Kumk’u Wayeb’")
var (
date1 = time.Date(2012, time.December, 21, 0, 0, 0, 0, time.UTC)
date2 = time.Date(2019, time.April, 2, 0, 0, 0, 0, time.UTC)
)
func tzolkin(date time.Time) (int, string) {
diff := int(date.Sub(date1).Hours()) / 24
rem := diff % 13
if rem < 0 {
rem = 13 + rem
}
var num int
if rem <= 9 {
num = rem + 4
} else {
num = rem - 9
}
rem = diff % 20
if rem <= 0 {
rem = 20 + rem
}
return num, sacred[rem-1]
}
func haab(date time.Time) (string, string) {
diff := int(date.Sub(date2).Hours()) / 24
rem := diff % 365
if rem < 0 {
rem = 365 + rem
}
month := civil[(rem+1)/20]
last := 20
if month == "Wayeb’" {
last = 5
}
d := rem%20 + 1
if d < last {
return strconv.Itoa(d), month
}
return "Chum", month
}
func longCount(date time.Time) string {
diff := int(date.Sub(date1).Hours()) / 24
diff += 13 * 400 * 360
baktun := diff / (400 * 360)
diff -= baktun * 400 * 360
katun := diff / (20 * 360)
diff -= katun * 20 * 360
tun := diff / 360
diff -= tun * 360
winal := diff / 20
kin := diff - winal*20
return fmt.Sprintf("%d.%d.%d.%d.%d", baktun, katun, tun, winal, kin)
}
func lord(date time.Time) string {
diff := int(date.Sub(date1).Hours()) / 24
rem := diff % 9
if rem <= 0 {
rem = 9 + rem
}
return fmt.Sprintf("G%d", rem)
}
func main() {
const shortForm = "2006-01-02"
dates := []string{
"2004-06-19",
"2012-12-18",
"2012-12-21",
"2019-01-19",
"2019-03-27",
"2020-02-29",
"2020-03-01",
}
fmt.Println(" Gregorian Tzolk’in Haab’ Long Lord of")
fmt.Println(" Date # Name Day Month Count the Night")
fmt.Println("---------- -------- ------------- -------------- ---------")
for _, dt := range dates {
date, _ := time.Parse(shortForm, dt)
n, s := tzolkin(date)
d, m := haab(date)
lc := longCount(date)
l := lord(date)
fmt.Printf("%s %2d %-8s %4s %-9s %-14s %s\n", dt, n, s, d, m, lc, l)
}
}</lang>
{{out}}
<pre>
Gregorian Tzolk’in Haab’ Long Lord of
Date # Name Day Month Count the Night
---------- -------- ------------- -------------- ---------
2004-06-19 4 Ben 16 Sotz’ 12.19.11.6.13 G7
2012-12-18 1 Kaban Chum K’ank’in 12.19.19.17.17 G6
2012-12-21 4 Ajaw 3 K’ank’in 13.0.0.0.0 G9
2019-01-19 1 Ajaw 13 Muwan’ 13.0.6.3.0 G6
2019-03-27 3 Manik’ Chum Wayeb’ 13.0.6.6.7 G1
2020-02-29 4 Kimi 14 K’ayab 13.0.7.5.6 G7
2020-03-01 5 Manik’ 15 K’ayab 13.0.7.5.7 G8
</pre>
=={{header|Perl 6}}==
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