Fix some imports in the moves package

Castle and EnPassant moved to the board package. Reference these types there.
Add the board packages as a dependency to the moves package.

moves/Cargo.toml

@@ -6,5 +6,6 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-chessfriend_core = { path = "../core" }
 chessfriend_bitboard = { path = "../bitboard" }
+chessfriend_board = { path = "../board" }
+chessfriend_core = { path = "../core" }

moves/src/builder.rs

@@ -1,6 +1,7 @@
 // Eryn Wells <eryn@erynwells.me>
 
-use crate::{castle, defs::Kind, EnPassant, Move, PromotionShape};
+use crate::{defs::Kind, Move, PromotionShape};
+use chessfriend_board::{castle, en_passant::EnPassant};
 use chessfriend_core::{Color, File, PlacedPiece, Rank, Square};
 use std::result::Result as StdResult;
 

moves/src/en_passant.rs

@@ -1,54 +0,0 @@
-// Eryn Wells <eryn@erynwells.me>
-
-use chessfriend_core::{Rank, Square};
-
-/// En passant information.
-#[derive(Clone, Copy, Debug, Eq, PartialEq)]
-pub struct EnPassant {
-    target_square: Square,
-    capture_square: Square,
-}
-
-impl EnPassant {
-    fn _capture_square(target: Square) -> Option<Square> {
-        let (file, rank) = target.file_rank();
-        match rank {
-            Rank::THREE => Some(Square::from_file_rank(file, Rank::FOUR)),
-            Rank::SIX => Some(Square::from_file_rank(file, Rank::FIVE)),
-            _ => None,
-        }
-    }
-
-    /// Return en passant information for a particular target square. The target
-    /// square is the square a pawn capturing en passant will move to.
-    ///
-    /// Return `None` if the square is not eligible for en passant.
-    ///
-    /// ## Examples
-    ///
-    /// ```
-    /// use chessfriend_core::Square;
-    /// use chessfriend_moves::EnPassant;
-    /// assert!(EnPassant::from_target_square(Square::E3).is_some());
-    /// assert!(EnPassant::from_target_square(Square::B4).is_none());
-    /// ```
-    pub fn from_target_square(target: Square) -> Option<Self> {
-        match Self::_capture_square(target) {
-            Some(capture) => Some(Self {
-                target_square: target,
-                capture_square: capture,
-            }),
-            None => None,
-        }
-    }
-
-    /// The square the capturing piece will move to.
-    pub fn target_square(&self) -> Square {
-        self.target_square
-    }
-
-    /// The square on which the captured pawn sits.
-    pub fn capture_square(&self) -> Square {
-        self.capture_square
-    }
-}

moves/src/lib.rs

@@ -3,13 +3,9 @@
 pub mod testing;
 
 mod builder;
-mod castle;
 mod defs;
-mod en_passant;
 mod moves;
 
 pub use builder::{Builder, Error as BuildMoveError, Result as BuildMoveResult};
-pub use castle::Castle;
 pub use defs::PromotionShape;
-pub use en_passant::EnPassant;
 pub use moves::Move;

moves/src/moves.rs

@@ -1,6 +1,7 @@
 // Eryn Wells <eryn@erynwells.me>
 
-use crate::{castle::Castle, defs::Kind};
+use crate::defs::Kind;
+use chessfriend_board::castle::Castle;
 use chessfriend_core::{Rank, Shape, Square};
 use std::fmt;