implement display trait for cell

src/lib.rs

@@ -57,6 +57,22 @@ impl Sub for Pos {
     }
 }
 
+impl std::fmt::Display for Cell {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(
+            f,
+            "{}",
+            match self {
+                Cell::Wall => 'X',
+                Cell::Box => '*',
+                Cell::Goal(true) => '!',
+                Cell::Goal(false) => '.',
+                Cell::None => ' ',
+            }
+        )
+    }
+}
+
 impl std::fmt::Display for Pos {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         write!(f, "{} {}", self.0, self.1)
@@ -111,17 +127,7 @@ impl std::fmt::Display for Level {
                 if Pos(j, i) == self.player {
                     write!(f, "@")?;
                 } else {
-                    write!(
+                    write!(f, "{}", self[Pos(j, i)])?;
-                        f,
-                        "{}",
-                        match self[Pos(j, i)] {
-                            Cell::Wall => 'X',
-                            Cell::Box => '*',
-                            Cell::Goal(true) => '!',
-                            Cell::Goal(false) => '.',
-                            Cell::None => ' ',
-                        }
-                    )?;
                 }
             }
             writeln!(f)?;