Fix some style errors

Fixed the last warnings and ran clippy on the project. Fixed where
appropriate and taught clippy otherwise. Now runs through clean.

1 files changed, 14 insertions, 2 deletions

diff --git a/src/math/vec2.rs b/src/math/vec2.rs
index 7834ffc..2b33f7b 100644
--- a/src/math/vec2.rs
+++ b/src/math/vec2.rs
@@ -8,7 +8,7 @@ use std::convert::{From, Into};
 use std::ops::{Add, AddAssign, Div, Mul, MulAssign, Neg, Sub, SubAssign};
 use std::{fmt, mem};
 
-#[derive(Clone, Copy, Debug, Default, PartialEq, PartialOrd, Serialize, Deserialize, Eq)]
+#[derive(Clone, Copy, Debug, Default, PartialEq, Serialize, Deserialize, Eq)]
 pub struct Vec2<T: Scalar + Copy> {
     pub x: T,
     pub y: T,
@@ -19,7 +19,7 @@ impl<T: Scalar + Copy> Vec2<T> {
         Self { x, y }
     }
 
-    pub fn len(&self) -> T
+    pub fn length(&self) -> T
     where
         T: RealField,
     {
@@ -202,6 +202,18 @@ impl<T: Scalar + Div<Output = T> + Copy> Div<T> for Vec2<T> {
 
 // By default, the coordinates are first compared by their y-coordinates, then
 // their x-coordinates
+impl<T: fmt::Debug> PartialOrd for Vec2<T>
+where
+    T: PartialOrd + Copy + 'static,
+{
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        match self.y.partial_cmp(&other.y) {
+            Some(Ordering::Equal) | None => self.x.partial_cmp(&other.x),
+            y_order => y_order,
+        }
+    }
+}
+
 impl<T: fmt::Debug> Ord for Vec2<T>
 where
     T: Ord + Copy + 'static,