Add serialization to String

rs/src/ui.rs

@@ -0,0 +1,59 @@
+use crate::board;
+use crate::board::GridAxis;
+
+impl board::Color {
+    fn to_string(&self) -> String {
+        match self {
+            board::Color::White => "W".to_string(),
+            board::Color::Black => "B".to_string(),
+        }
+    }
+}
+
+impl board::PieceType {
+    fn to_string(&self) -> String {
+        match self {
+            board::PieceType::Pawn => "P".to_string(),
+        }
+    }
+}
+
+impl board::Piece {
+    fn to_string(&self) -> String {
+        self.piece_type.to_string() + &self.color.to_string()
+    }
+}
+
+trait GridAxisIO
+where
+    Self: GridAxis,
+{
+    const ALL_CHARS: [char; 8];
+    fn to_string(&self) -> String {
+        Self::ALL_CHARS[self.get_index() as usize].to_string()
+    }
+}
+
+impl GridAxisIO for board::Rank {
+    const ALL_CHARS: [char; Self::ALL_VALUES.len()] =
+        ['1', '2', '3', '4', '5', '6', '7', '8'];
+}
+
+impl GridAxisIO for board::File {
+    const ALL_CHARS: [char; Self::ALL_VALUES.len()] =
+        ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'];
+}
+
+impl board::Position {
+    fn to_string(&self) -> String {
+        self.file.to_string() + &self.rank.to_string()
+    }
+}
+
+impl board::Board {
+    pub fn to_string(&self) -> String {
+        self.iter()
+            .map(|(position, piece)| piece.to_string() + &position.to_string())
+            .collect()
+    }
+}