[position, board] Remove a bunch of dead code

position/src/lib.rs

@@ -1,8 +1,5 @@
 // Eryn Wells <eryn@erynwells.me>
 
-mod check;
-mod display;
-mod move_generator;
 mod movement;
 mod position;
 mod sight;

position/src/position/position.rs

@@ -13,7 +13,6 @@ use std::{cell::OnceCell, fmt, ops::BitOr};
 #[derive(Clone, Debug, Eq)]
 pub struct Position {
     pub board: Board,
-    moves: OnceCell<Moves>,
     pub(super) captures: [Vec<Piece>; Color::NUM],
 }
 
@@ -145,18 +144,6 @@ impl Position {
         })
     }
 
-    pub fn has_en_passant_square(&self) -> bool {
-        self.board.en_passant().is_some()
-    }
-
-    pub fn en_passant(&self) -> Option<EnPassant> {
-        self.board.en_passant()
-    }
-
-    fn _en_passant_target_square(&self) -> Option<Square> {
-        self.board.en_passant().map(EnPassant::target_square)
-    }
-
     pub(crate) fn moves_for_piece(&self, piece: &PlacedPiece) -> Option<&MoveSet> {
         self.moves().moves_for_piece(piece)
     }
@@ -237,7 +224,6 @@ impl Default for Position {
     fn default() -> Self {
         Self {
             board: Board::default(),
-            moves: OnceCell::new(),
             captures: Default::default(),
         }
     }

position/src/sight/rays.rs

@@ -1,27 +0,0 @@
-// Eryn Wells <eryn@erynwells.me>
-
-use chessfriend_bitboard::BitBoard;
-use chessfriend_core::{Direction, Square};
-
-fn _find_ray_connecting_squares(origin_square: Square, target_square: Square) -> BitBoard {
-    macro_rules! ray {
-        ($square:expr, $direction:expr) => {
-            ($direction, BitBoard::ray($square, $direction))
-        };
-    }
-
-    let target: BitBoard = target_square.into();
-    match Direction::ALL
-        .iter()
-        .map(|direction| ray!(origin_square, *direction))
-        .find(|(direction, &ray)| (ray & target).is_populated())
-    {
-        Some((direction, ray)) => {
-            if let Some(first_occupied_square) = BitBoard::$occupied_squares(&(ray & $blockers)).next()
-            let remainder = BitBoard::ray(first_occupied_square, direction);
-            let attack_ray = ray & !remainder;
-            attack_ray * ray
-        }
-        None => BitBoard::EMPTY,
-    }
-}