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31 lines
737 B
Rust
31 lines
737 B
Rust
#[derive(Copy, Clone, PartialEq, Eq)]
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pub enum DayPeriod {
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Night,
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Morning,
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Noon,
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Evening,
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}
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impl From<f64> for DayPeriod {
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fn from(time_of_day: f64) -> Self {
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let tod = time_of_day.rem_euclid(60.0 * 60.0 * 24.0);
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if tod < 60.0 * 60.0 * 4.0 {
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DayPeriod::Night
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} else if tod < 60.0 * 60.0 * 10.0 {
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DayPeriod::Morning
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} else if tod < 60.0 * 60.0 * 16.0 {
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DayPeriod::Noon
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} else if tod < 60.0 * 60.0 * 20.0 {
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DayPeriod::Evening
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} else {
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DayPeriod::Night
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}
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}
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}
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impl DayPeriod {
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pub fn is_dark(&self) -> bool { *self == DayPeriod::Night }
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pub fn is_light(&self) -> bool { !self.is_dark() }
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}
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