create BitBoard::DIRECTIONS

src/repr/bitboard.rs

@@ -79,6 +79,18 @@ impl BitBoard {
         self.south().west()
     }
 
+    /// All direction methods
+    pub const DIRECTIONS: [fn(&Self) -> Self; 8] = [
+        BitBoard::east,
+        BitBoard::west,
+        BitBoard::north,
+        BitBoard::south,
+        BitBoard::northeast,
+        BitBoard::northwest,
+        BitBoard::southeast,
+        BitBoard::southwest,
+    ];
+
     // Mask for a specific column (e.g., col_mask(7) = 0x8080808080808080)
     const fn col_mask(col: CoordAxis) -> Self {
         let mut mask = 0;

src/repr/board.rs

@@ -277,19 +277,7 @@ impl Board {
         let mut flip_mask = BitBoard::new();
         let seed = BitBoard::from_coord(coords);
 
-        // Directions to check: east, west, north, south, and diagonals
-        let directions = [
-            BitBoard::east,
-            BitBoard::west,
-            BitBoard::north,
-            BitBoard::south,
-            BitBoard::northeast,
-            BitBoard::northwest,
-            BitBoard::southeast,
-            BitBoard::southwest,
-        ];
-
-        for dir in directions {
+        for dir in BitBoard::DIRECTIONS {
             let mut current = seed;
             let mut temp_flips = BitBoard::new();