CPG/src/Chess/player.nim

import board as chess
import std/strformat
import std/strutils





when isMainModule:
    setControlCHook(proc () {.noconv.} = echo ""; quit(0))
    var 
        board = newChessboardFromFEN("rnbqkbnr/8/8/8/8/8/8/RNBQKBNR w KQkq - 0 1")
        startSquare: string
        targetSquare: string
        data: string
        move: Move


    while true:
        echo &"{board.pretty()}"
        echo &"Turn: {board.getActiveColor()}"
        if board.inCheck():
            echo &"Check!"
        stdout.write("Move (from, to) -> ")
        try:
            data = readLine(stdin).strip(chars={'\0', ' '})
        except IOError:
            echo ""
            break
        if len(data) != 4:
            continue
        startSquare = data[0..1]
        targetSquare = data[2..3]
        try:
            move = board.makeMove(startSquare, targetSquare)
        except ValueError:
            echo &"Error: {getCurrentExceptionMsg()}"
        if move == emptyMove():
            echo &"Error: move is illegal"