Add ascii mode: @ print the board using only ascii

src/bin/client.rs

@@ -239,6 +239,7 @@ pub enum DisplayMessage {
     Debug(String),
     Input(Key),
     RemoveLastInput,
+    SwitchAsciiMode,
     Enter,
     Clear,
     Exit,
@@ -256,12 +257,31 @@ fn start_display_thread(request_recv: Receiver<DisplayMessage>) {
         )
         .unwrap();
         stdout.flush().unwrap();
+        let mut ascii_mode = false;
+        let mut last_fen_position = String::default();
+        let mut last_side = Color::White;
         loop {
             let msg = request_recv.recv().unwrap();
             match msg {
                 DisplayMessage::Chessboard { fen, side } => {
                     let current_position = clichess::parse_position(&fen);
-                    clichess::print_board_representation(&current_position, side, &mut stdout);
+                    last_fen_position = fen.clone();
+                    last_side = side.clone();
+                    clichess::print_board_representation(
+                        &current_position,
+                        side,
+                        &mut stdout,
+                        ascii_mode,
+                    );
+                }
+                DisplayMessage::SwitchAsciiMode => {
+                    ascii_mode = !ascii_mode;
+                    clichess::print_board_representation(
+                        &clichess::parse_position(&last_fen_position),
+                        last_side,
+                        &mut stdout,
+                        ascii_mode,
+                    );
                 }
                 DisplayMessage::Message(s) => write!(
                     stdout,
@@ -355,6 +375,11 @@ fn start_keyboard_input_thread(
                     }
                     buffer.clear();
                 }
+                Event::Key(Key::Char('@')) => {
+                    display_sender
+                        .send(DisplayMessage::SwitchAsciiMode)
+                        .unwrap();
+                }
                 Event::Key(Key::Char(c)) => {
                     buffer.push_str(&c.to_string());
                     display_sender

src/lib.rs

@@ -133,6 +133,7 @@ pub fn print_board_representation(
     chess: &Chess,
     side: Color,
     stdout: &mut RawTerminal<io::StdoutLock>,
+    ascii_mode: bool,
 ) {
     let mut rank_numbers;
     if side == Color::White {
@@ -141,10 +142,10 @@ pub fn print_board_representation(
         rank_numbers = 1;
     }
     let mut linenb = 6;
-    for v in board_string_representation(chess, side) {
+    for v in board_string_representation(chess, side, ascii_mode) {
         write!(stdout, "{}", termion::cursor::Goto(10, linenb)).unwrap();
         for square_to_print in v {
-            print_square(&square_to_print, stdout);
+            print_square(&square_to_print, stdout, ascii_mode);
         }
         linenb += 1;
         resetcolors(stdout);
@@ -169,7 +170,11 @@ pub fn print_board_representation(
     stdout.flush().unwrap();
 }
 
-fn print_square(square_to_print: &SquareToPrint, stdout: &mut RawTerminal<io::StdoutLock>) {
+fn print_square(
+    square_to_print: &SquareToPrint,
+    stdout: &mut RawTerminal<io::StdoutLock>,
+    ascii_mode: bool,
+) {
     match square_to_print.color.as_ref() {
         "black" => write!(stdout, "{}", termion::color::Fg(termion::color::Black)),
         _ => write!(stdout, "{}", termion::color::Fg(termion::color::Reset)),
@@ -182,6 +187,10 @@ fn print_square(square_to_print: &SquareToPrint, stdout: &mut RawTerminal<io::St
         _ => write!(stdout, "{}", termion::color::Bg(termion::color::Reset)),
     }
     .unwrap();
+    if ascii_mode {
+        write!(stdout, "{}", termion::color::Fg(termion::color::Reset)).unwrap();
+        write!(stdout, "{}", termion::color::Bg(termion::color::Reset)).unwrap();
+    }
     write!(stdout, "{}", square_to_print.square_representation).unwrap();
 }
 
@@ -190,7 +199,11 @@ fn resetcolors(stdout: &mut RawTerminal<io::StdoutLock>) {
     write!(stdout, "{}", termion::color::Bg(termion::color::Reset)).unwrap();
 }
 
-fn board_string_representation(chess: &Chess, side: Color) -> Vec<Vec<SquareToPrint>> {
+fn board_string_representation(
+    chess: &Chess,
+    side: Color,
+    ascii_mode: bool,
+) -> Vec<Vec<SquareToPrint>> {
     let mut full_board_to_print = Vec::new();
     for _ in 0..8 {
         full_board_to_print.push(Vec::new())
@@ -205,7 +218,7 @@ fn board_string_representation(chess: &Chess, side: Color) -> Vec<Vec<SquareToPr
                 } else {
                     "green".to_string()
                 },
-                square_representation: get_square_representation(&square, chess),
+                square_representation: get_square_representation(&square, chess, ascii_mode),
             };
             full_board_to_print[j as usize].push(square_to_print);
         }
@@ -229,11 +242,18 @@ pub fn try_to_play_move(chess: &Chess, movestr: String) -> Result<Chess, MoveInp
     Ok((*chess).clone().play(&mv)?)
 }
 
-fn get_square_representation(square: &Square, chess: &Chess) -> String {
+fn get_square_representation(square: &Square, chess: &Chess, ascii_mode: bool) -> String {
     let board = (*chess).board();
     match board.piece_at(*square) {
-        Some(piece) => format!("{} ", piece_char_to_utf8(piece.char())),
-        None => "  ".to_string(),
+        Some(piece) => format!(
+            "{} ",
+            if ascii_mode {
+                piece.char()
+            } else {
+                piece_char_to_utf8(piece.char())
+            }
+        ),
+        None => if ascii_mode { ". " } else { "  " }.to_string(),
     }
 }