Add Point3::from_line()

src/common/geometry.rs

@@ -16,6 +16,11 @@ impl Point2 {
 pub struct Point3(pub u64, pub u64, pub u64);
 
 impl Point3 {
+    pub fn from_line(line: &str, separator: char) -> Self {
+        let p: Vec<u64> = line.split(separator).map(|s| s.parse().unwrap()).collect();
+        Self(p[0], p[1], p[2])
+    }
+
     pub fn distance_sqr(&self, other: &Self) -> u64 {
         self.0.abs_diff(other.0).pow(2)
             + self.1.abs_diff(other.1).pow(2)

src/solvers/playground.rs

@@ -21,8 +21,7 @@ impl Playground {
     fn junction_boxes<R: BufRead>(reader: R) -> Vec<Point3> {
         let mut junction_boxes = Vec::new();
         for line in reader.lines().map_while(Result::ok) {
-            let j: Vec<u64> = line.split(Self::POINT_SPLIT_CHAR).map(|s| s.parse().unwrap()).collect();
-            junction_boxes.push(Point3(j[0], j[1], j[2]));
+            junction_boxes.push(Point3::from_line(&line, Self::POINT_SPLIT_CHAR));
         }
         junction_boxes
     }