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Diffstat (limited to 'src/metric/mass.rs')
| -rw-r--r-- | src/metric/mass.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/metric/mass.rs b/src/metric/mass.rs new file mode 100644 index 0000000..462d840 --- /dev/null +++ b/src/metric/mass.rs @@ -0,0 +1,36 @@ +use std::fmt::{Display, Formatter, Result}; +use std::ops::{Add, Sub, AddAssign, SubAssign, Div, Mul, DivAssign, MulAssign}; + +use crate::metric::Unit; +use crate::metric::Primitive; + +use crate::declare_unit_basics; + +#[derive(Copy, Clone, Debug, PartialOrd, PartialEq)] +pub enum Mass { + Base(f64, fn(f64) -> f64, &'static str), + Canonical(f64), + Kilogram(f64), + Milligram(f64), + Gram(f64), + Tonne(f64), + Ounce(f64), // international avoirdupois ounce + Pound(f64), // International avoirdupois pound +} + +impl Unit<Mass> for Mass { + fn to_si_unit(&self) -> Mass { + match self { + Mass::Base(_, _, _) => self.clone(), + Mass::Canonical(value) => Mass::Base(value.clone(), |x| x, "kg"), + Mass::Kilogram(value) => Mass::Base(value.clone(), |x| x, "kg"), + Mass::Gram(value) => Mass::Base(value / 1000.0, |x| x * 1000.0, "g"), + Mass::Milligram(value) => Mass::Base(value / 1_000_000.0, |x| x * 1_000_000.0, "mg"), + Mass::Tonne(value) => Mass::Base(value * 1000.0, |x| x / 1000.0, "t"), + Mass::Ounce(value) => Mass::Base(value * 28.349523125 / 1000.0, |x| x / 28.349523125 * 1000.0, "℥"), + Mass::Pound(value) => Mass::Base(value * 0.45359237, |x| x / 0.45359237, "lb"), + } + } +} + +declare_unit_basics!(Mass);
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