Make moves::castle::Parameters public

Rename this struct CastlingParameters → Parameters
Implement getter methods for private properties

moves/src/castle.rs

@@ -1,7 +1,7 @@
 // Eryn Wells <eryn@erynwells.me>
 
 use chessfriend_bitboard::BitBoard;
-use chessfriend_core::Square;
+use chessfriend_core::{Color, Square};
 
 #[repr(u8)]
 #[derive(Copy, Clone, Debug, Eq, PartialEq)]
@@ -10,7 +10,7 @@ pub enum Castle {
     QueenSide = 1,
 }
 
-pub(crate) struct CastlingParameters {
+pub struct Parameters {
     /// Origin squares of the king and rook.
     origin_squares: Squares,
 
@@ -24,19 +24,45 @@ pub(crate) struct CastlingParameters {
     check_squares: BitBoard,
 }
 
+impl Parameters {
+    pub fn king_origin_square(&self) -> Square {
+        self.origin_squares.king
+    }
+
+    pub fn rook_origin_square(&self) -> Square {
+        self.origin_squares.rook
+    }
+
+    pub fn king_target_square(&self) -> Square {
+        self.target_squares.king
+    }
+
+    pub fn rook_target_square(&self) -> Square {
+        self.target_squares.rook
+    }
+
+    pub fn clear_squares(&self) -> &BitBoard {
+        &self.clear_squares
+    }
+
+    pub fn check_squares(&self) -> &BitBoard {
+        &self.check_squares
+    }
+}
+
 #[derive(Debug)]
-pub(crate) struct Squares {
+struct Squares {
-    pub king: Square,
+    king: Square,
-    pub rook: Square,
+    rook: Square,
 }
 
 impl Castle {
     pub const ALL: [Castle; 2] = [Castle::KingSide, Castle::QueenSide];
 
     /// Parameters for each castling move, organized by color and board-side.
-    const PARAMETERS: [[CastlingParameters; 2]; 2] = [
+    const PARAMETERS: [[Parameters; 2]; 2] = [
         [
-            CastlingParameters {
+            Parameters {
                 origin_squares: Squares {
                     king: Square::E1,
                     rook: Square::H1,
@@ -48,7 +74,7 @@ impl Castle {
                 clear_squares: BitBoard::new(0b01100000),
                 check_squares: BitBoard::new(0b01110000),
             },
-            CastlingParameters {
+            Parameters {
                 origin_squares: Squares {
                     king: Square::E1,
                     rook: Square::A1,
@@ -62,7 +88,7 @@ impl Castle {
             },
         ],
         [
-            CastlingParameters {
+            Parameters {
                 origin_squares: Squares {
                     king: Square::E8,
                     rook: Square::H8,
@@ -74,7 +100,7 @@ impl Castle {
                 clear_squares: BitBoard::new(0b01100000 << 8 * 7),
                 check_squares: BitBoard::new(0b01110000 << 8 * 7),
             },
-            CastlingParameters {
+            Parameters {
                 origin_squares: Squares {
                     king: Square::E8,
                     rook: Square::A8,
@@ -88,4 +114,8 @@ impl Castle {
             },
         ],
     ];
+
+    pub fn parameters(&self, color: Color) -> &'static Parameters {
+        &Castle::PARAMETERS[color as usize][*self as usize]
+    }
 }