add Board::swap_colors (and ByColor::swap for consistency) (closes #74)

niklasf · Dec 7, 2023 · ceaf0d6 · ceaf0d6
1 parent f6061ef
commit ceaf0d6
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Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/src/board.rs b/src/board.rs
@@ -367,6 +367,11 @@ impl Board {
         self.transform(Bitboard::rotate_270);
     }
 
+    /// Makes black pieces white and vice versa.
+    pub fn swap_colors(&mut self) {
+        self.by_color.swap();
+    }
+
     pub fn pop_front(&mut self) -> Option<(Square, Piece)> {
         self.occupied
             .first()

diff --git a/src/color.rs b/src/color.rs
@@ -225,7 +225,12 @@ impl<T> ByColor<T> {
         unsafe { &mut *(self as *mut ByColor<T>).cast::<T>().offset(color as isize) }
     }
 
+    #[deprecated = "Use ByColor::swap()"]
     pub fn flip(&mut self) {
+        self.swap();
+    }
+
+    pub fn swap(&mut self) {
         mem::swap(&mut self.white, &mut self.black);
     }
 
@@ -327,7 +332,7 @@ impl ByColor<ByRole<u8>> {
 impl<T: PartialOrd> ByColor<T> {
     pub fn normalize(&mut self) {
         if self.white < self.black {
-            self.flip();
+            self.swap();
         }
     }