Kayzee

Hmmm... I think my little lunisolar calendar project is coming along nicely. I had to totally revamp it though. It's still probably not that accurate but... honestly, what calendar really is?

I just made my own encyclopedia script, cause I wasn't happy with the one I was fiddling with. I called it 'Pedia! :3 Yes including the ! at the end and the ' at the start. It's cute, don't judge me!

Er anyway,  it requires some other scripts, so I am not sure if I will release it on it's own. Aaaand it's not nearly done yet anyway. Still I am happy with cute widdle 'Pedia! ... Maybe I should make it a character in my game, like a talking book or a literal exposition fairy that follows you around.

Phew, I just spend waaaay to much time playing around with seeing if I could calculate dates for a lunisolar calendar system... something like this one.

#A known full moon neer a winter solstice to count from.
moontime = Time.gm(1969,"dec",23,17,36,0) 

nowtime = Time.now

diftime = nowtime-moontime

#Numbers are based on the Metonic cycle: 6940 days being aprox. 19 solar years and 235 lunar months.
puts days = (diftime / 86400.0)
puts mooncycleday = days % 6940
puts mooncyclemonth = (days / 29.530587981) % 235
puts mooncycleyear = mooncycleday % 19

#Count out the months since the start of the cycle
#7 out of 19 years have a 13th month.
moonmonth = mooncyclemonth.floor
for i in 0..(mooncycleyear.floor + 1)
  my = [2, 5, 7, 10, 13, 16, 18].include?(i) ? 13 : 12
  moonmonth -= my if moonmonth > my
end
puts moonmonth

#Count out the days since the start of the cycle
#Alternates between 29 and 30 day months (a real lunar month is about 29.530587981 days)
moonday = mooncycleday.floor
for i in 0..(mooncyclemonth.floor + 1)
  dm = i.even? ? 29 : 30
  moonday -= dm if moonday > dm
end
puts moonday

Am I doing it right?