Another shared library update

aoc-shared/src/grid.rs

@@ -18,6 +18,10 @@ impl<T> Grid<T> {
         self.vec.len()
     }
 
+    pub fn is_empty(&self) -> bool {
+        self.vec.is_empty()
+    }
+
     pub fn num_cols(&self) -> usize {
         self.width
     }

aoc-shared/src/lib.rs

@@ -2,6 +2,25 @@ pub mod grid;
 pub mod enums;
 
 pub use grid::*;
+pub use enums::*;
+
+#[derive(Debug, Default, Copy, Clone, Eq, Hash, PartialEq)]
+pub struct Location {
+    pub x: isize,
+    pub y: isize,
+}
+
+impl Location {
+    pub fn new(x: isize, y: isize) -> Self {
+        Location { x, y }
+    }
+
+    pub fn get_distance(self, other: Self) -> f64 {
+        let squares = (other.x - self.x).pow(2) + (other.y - self.y).pow(2);
+
+        (squares as f64).sqrt()
+    }
+}
 
 #[macro_export]
 macro_rules! deref {

day9/src/main.rs

@@ -1,6 +1,6 @@
 use std::collections::HashSet;
-use aoc_shared::enums::*;
-use aoc_shared::enums::Direction::*;
+use aoc_shared::{Location, Direction};
+use aoc_shared::Direction::*;
 
 struct Move {
     dir: Direction,
@@ -24,24 +24,6 @@ impl Move {
     }
 }
 
-#[derive(Debug, Default, Copy, Clone, Eq, Hash, PartialEq)]
-struct Location {
-    x: isize,
-    y: isize,
-}
-
-impl Location {
-    fn new(x: isize, y: isize) -> Self {
-        Location { x, y }
-    }
-
-    fn get_distance(self, other: Self) -> f64 {
-        let squares = (other.x - self.x).pow(2) + (other.y - self.y).pow(2);
-
-        (squares as f64).sqrt()
-    }
-}
-
 // ---------------------------------------------------------------------------
 
 #[derive(Debug, Default)]
@@ -97,8 +79,6 @@ impl Rope {
             for i in 1..self.knot_count {
                 self.move_knot(i, i - 1);
             }
-            // self.head = to;
-            // self.head_visited.insert(to);
         }
     }