move to workspace mode

2026-01-22 15:52:52 +05:30
parent 8cd1f86ba6
commit 86d160cab0
34 changed files with 202 additions and 195 deletions
@@ -0,0 +1,71 @@
+#[derive(Clone, Eq, Hash, Copy, Debug, PartialEq)]
+pub enum Piece {
+    King,
+    Queen,
+    Bishop,
+    Knight,
+    Rook,
+    Pawn,
+}
+
+impl Piece {
+    pub fn parse(piece: &str) -> Option<Self> {
+        match piece {
+            "K" => Some(Piece::King),
+            "Q" => Some(Piece::Queen),
+            "B" => Some(Piece::Bishop),
+            "N" => Some(Piece::Knight),
+            "R" => Some(Piece::Rook),
+            "P" => Some(Piece::Pawn),
+            "." => None,
+            p => panic!("Invalid piece {}", p),
+        }
+    }
+
+    pub fn notation(&self) -> String {
+        let n = match self {
+            Piece::King => "K",
+            Piece::Queen => "Q",
+            Piece::Bishop => "B",
+            Piece::Knight => "N",
+            Piece::Rook => "R",
+            Piece::Pawn => "P",
+        };
+
+        n.to_string()
+    }
+
+    pub fn pretty(&self) -> String {
+        let n = match self {
+            Piece::King => "♔",
+            Piece::Queen => "♕",
+            Piece::Bishop => "♗",
+            Piece::Knight => "♘",
+            Piece::Rook => "♖",
+            Piece::Pawn => "♙",
+        };
+
+        n.to_string()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    macro_rules! p {
+        ($piece:literal) => {
+            Piece::parse($piece)
+        };
+    }
+
+    #[test]
+    fn test_piece_parse() {
+        assert_eq!(p!("K"), Some(Piece::King));
+        assert_eq!(p!("Q"), Some(Piece::Queen));
+        assert_eq!(p!("B"), Some(Piece::Bishop));
+        assert_eq!(p!("N"), Some(Piece::Knight));
+        assert_eq!(p!("R"), Some(Piece::Rook));
+        assert_eq!(p!("P"), Some(Piece::Pawn));
+    }
+}