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149 lines
5.1 KiB
149 lines
5.1 KiB
mod config;
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mod eval;
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use chess::{Board, ChessMove, MoveGen};
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use config::INFO;
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use eval::eval_board;
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use itertools::Itertools;
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use std::collections::HashMap;
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use std::io::{self, BufRead};
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use std::process;
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use std::str::FromStr;
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use vampirc_uci::parse_one;
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use vampirc_uci::{UciMessage, UciOptionConfig, UciTimeControl};
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use crate::config::depth;
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fn main() {
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let _rng = rand::thread_rng();
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let mut board: Option<Board> = None;
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let mut move_history: Vec<(ChessMove, Board)> = vec![];
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for line in io::stdin().lock().lines() {
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let msg: UciMessage = parse_one(&line.unwrap());
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match msg {
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UciMessage::Uci => {
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println!(
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"{}\n{}\n{}",
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UciMessage::Id {
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name: Some(INFO.to_name()),
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author: Some(INFO.to_author())
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},
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UciMessage::Option(UciOptionConfig::Check {
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name: "EnPassant".to_owned(),
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default: Some(false)
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}),
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UciMessage::UciOk {}
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)
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}
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UciMessage::IsReady => {
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println!("{}", UciMessage::ReadyOk)
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}
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UciMessage::UciNewGame => {
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board = Some(Board::default());
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move_history = vec![];
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}
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UciMessage::Position {
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startpos,
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fen,
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moves,
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} => {
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if startpos {
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board = Some(Board::default())
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}
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if let Some(fen) = fen {
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board = Some(Board::from_str(fen.as_str()).expect("Invalid FEN board"))
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}
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if !moves.is_empty() {
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for chess_move in moves.iter() {
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if let Some(goofy_board) = board {
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board = Some(goofy_board.make_move_new(*chess_move));
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}
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}
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}
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}
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UciMessage::Go {
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time_control,
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search_control,
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} => {
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if let Some(tc) = time_control {
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match tc {
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UciTimeControl::TimeLeft {
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white_time: _,
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black_time: _,
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white_increment: _,
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black_increment: _,
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moves_to_go: _,
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} => {
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// FIXME: impl time-related Things
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}
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UciTimeControl::Infinite => {
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// FIXME: impl
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}
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UciTimeControl::Ponder => {
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// FIXME: impl
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}
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UciTimeControl::MoveTime(_) => {
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// FIXME: impl
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}
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}
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}
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if let Some(_sc) = search_control {
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// FIXME: impl search control things
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}
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if let Some(board) = board {
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let color = board.side_to_move();
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let moves = MoveGen::new_legal(&board);
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let iter = moves.map(|mov| (mov, board.make_move_new(mov)));
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let mut moves_hash_map = HashMap::new();
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let mut sorted_moves = iter.sorted_by(|a, b| {
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if !moves_hash_map.contains_key(a) {
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moves_hash_map
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.insert(*a, eval_board(a.1, color, depth, move_history.clone()));
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}
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if !moves_hash_map.contains_key(b) {
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moves_hash_map
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.insert(*b, eval_board(b.1, color, depth, move_history.clone()));
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}
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let a_eval = moves_hash_map.get(a).unwrap();
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let b_eval = moves_hash_map.get(b).unwrap();
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Ord::cmp(&b_eval, &a_eval)
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});
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let best_move = sorted_moves.next().unwrap();
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let worst_move = sorted_moves.last().unwrap_or(best_move);
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move_history.push(best_move);
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eprintln!(
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"best move: {}, {}",
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best_move.0,
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moves_hash_map.get(&best_move).unwrap_or(&0)
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);
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eprintln!(
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"worst move: {}, {}",
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worst_move.0,
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moves_hash_map.get(&worst_move).unwrap_or(&0)
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);
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println!("bestmove {}", best_move.0);
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}
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}
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UciMessage::Stop => {
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// FIXME: impl
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}
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UciMessage::Quit => {
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process::exit(0);
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}
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_ => {
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todo!("{}", msg.to_string())
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}
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}
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}
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}
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