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-rw-r--r--src/metric/energy.rs32
1 files changed, 32 insertions, 0 deletions
diff --git a/src/metric/energy.rs b/src/metric/energy.rs
new file mode 100644
index 0000000..5884a2f
--- /dev/null
+++ b/src/metric/energy.rs
@@ -0,0 +1,32 @@
+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 Energy {
+ Base(f64, fn(f64) -> f64, &'static str),
+ Canonical(f64),
+ Joule(f64),
+ KiloJoule(f64),
+ Calorie(f64),
+ Kilocalorie(f64),
+}
+
+impl Unit<Energy> for Energy {
+ fn to_si_unit(&self) -> Energy {
+ match self {
+ Energy::Base(_, _, _) => self.clone(),
+ Energy::Canonical(value) => Energy::Base(value.clone(), |x| x, "J"),
+ Energy::Joule(value) => Energy::Base(value.clone(), |x| x, "J"),
+ Energy::KiloJoule(value) => Energy::Base(value * 1000.0, |x| x / 1000.0, "kJ"),
+ Energy::Calorie(value) => Energy::Base(value * 4.184, |x| x / 4.184, "cal"),
+ Energy::Kilocalorie(value) => Energy::Base(value * 4184.0, |x| x / 4184.0, "kcal"),
+ }
+ }
+}
+
+declare_unit_basics!(Energy); \ No newline at end of file