reorganize, add Azimuth

src/space/coord.rs

@@ -1,35 +0,0 @@
-use super::*;
-
-/// A numeric type that can be used as coordinate.
-///
-/// FIXME: Replace with `num` crate?
-/// FIXME: Use AsRef/AsMut?
-///
-/// ```
-/// use tengri::draw::Coord;
-/// let a: u16 = Coord::zero();
-/// let b: u16 = a.plus(1);
-/// let c: u16 = a.minus(2);
-/// let d = a.atomic();
-/// ```
-pub trait Coord: Send + Sync + Copy
-    + Add<Self, Output=Self>
-    + Sub<Self, Output=Self>
-    + Mul<Self, Output=Self>
-    + Div<Self, Output=Self>
-    + Ord + PartialEq + Eq
-    + Debug + Display + Default
-    + From<u16> + Into<u16>
-    + Into<usize>
-    + Into<f64>
-    + std::iter::Step
-{
-    /// Zero in own type.
-    fn zero () -> Self { 0.into() }
-    /// Addition.
-    fn plus (self, other: Self) -> Self;
-    /// Saturating subtraction.
-    fn minus  (self, other: Self) -> Self { if self >= other { self - other } else { 0.into() } }
-    /// Convert to [AtomicUsize].
-    fn atomic (self) -> AtomicUsize { AtomicUsize::new(self.into()) }
-}