NAME

Games::TauStation::DateTime — Convert TauStation's Galactic Coordinated Time to Old Earth Time

SYNOPSIS

use Games::TauStation::DateTime;

# Show time in GCT or Old Earth time:
say GCT.new('193.99/59:586 GCT');    # OUTPUT: «193.99/59:586 GCT␤»
say GCT.new('193.99/59:586 GCT').OE; # OUTPUT: «2017-03-03T16:00:32.229148Z␤»

# Show duration from now:
say GCT.new('D12/43:044 GCT');    # OUTPUT: «198.27/19:285 GCT␤»
say GCT.new('D12/43:044 GCT').OE; # OUTPUT: «2018-05-05T06:20:12.543815Z␤»

# Adjust date using GCT or Old Earth time units:
say GCT.new('193.99/59:586 GCT').later(:30segments).earlier(:2hours);
# OUTPUT: «193.99/81:253 GCT␤»

# We inherit from DateTime class:
say GCT.new('2018-04-03T12:20:43Z');    # OUTPUT: «197.95/44:321 GCT␤»
say GCT.new('193.99/59:586 GCT').posix; # OUTPUT: «1488556832␤»

DESCRIPTION

This module implements a subclass of DateTime that lets you convert times between TauStation's Galactic Coordinated Time (GCT) and Old Earth (i.e. "real life") time.

METHODS

Inherited

Inherits all methods from DateTime

new

multi method new(Str:D $ where /<gct-time>/ --> GCT:D);
multi method new(Str:D $ where /<gct-duration>/ --> GCT:D);

In addition to regular DateTime constructors, two new ones are provided that take a string with either a GCT time or GCT duration, which is similar to time, except it's prefixed with uppercase letter D (see CORETECHS archive for details).

Negative times and durations are allowed. For durations, the minus sign goes after letter D Cycle and day units may be omitted. When cycle is omitted, the dot that normally follows it must be omitted as well; when both cycle and day are omitted, the slash before the time must be present. Whitespace can be used between units and separators.

These are examples of valid times:

• 198.14/07:106GCT`

• 198.14/07:106 GCT`

• • 198 . 14 / 07 : 106 GCT`

• 14/07:106 GCT`

• -14/07:106 GCT`

• /07:106 GCT`

• -/07:106 GCT`

These are examples of valid durations:

• D198.14/07:106GCT`

• D198.14/07:106 GCT`

• D - 198 . 14 / 07 : 106 GCT`

• D 14/07:106 GCT`

• D-14/07:106 GCT`

• D /07:106 GCT`

• D-/07:106 GCT`

OE / OldEarth

say GCT.new('D12/43:044 GCT');          # OUTPUT: «198.27/19:285 GCT␤»
say GCT.new('D12/43:044 GCT').OE;       # OUTPUT: «2018-05-05T06:20:12.543815Z␤»
say GCT.new('D12/43:044 GCT').OldEarth; # OUTPUT: «2018-05-05T06:20:12.543815Z␤»

.OE is an alias for .OldEarth. The methods don't take any arguments and return a cloned GCT object with .formatter set to the default DateTime formatter (i.e. the date when printed would be printed as Old Earth time instead of GCT).

DateTime

say GCT.new('D12/43:044 GCT').DateTime;       # OUTPUT: «2018-05-05T06:29:14.494109Z␤»
say GCT.new('D12/43:044 GCT').DateTime.^name; # OUTPUT: «DateTime␤»

Coerces a GCT object to plain DateTime object.

AUTHOR

Zoffix Znet

COPYRIGHT AND LICENSE

Copyright 2017 Zoffix Znet

Copyright 2018 - 2022 Raku Community

This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.