moved chess logic to class
This commit is contained in:
parent
6620385196
commit
ee1ca2f653
GPG key ID:
CABF2F86EF7884F9
3 changed files with 238 additions and 173 deletions
|
|
@ -1,176 +1,6 @@
|
|||
from os import path
|
||||
from enum import Enum, auto
|
||||
import time
|
||||
import re
|
||||
import itertools
|
||||
from icecream import ic
|
||||
from cinput import ControlInput, Button
|
||||
from cinput import ControlInput
|
||||
from graphics import Graphics
|
||||
from .draw import Draw
|
||||
from . import sunfish
|
||||
|
||||
class GameState(Enum):
|
||||
MAIN_MENU = auto()
|
||||
THINKING = auto()
|
||||
CHOOSE_SRC = auto()
|
||||
CHOOSE_DST = auto()
|
||||
GAME_OVER = auto()
|
||||
|
||||
SAVE_FILE = path.join("data", "chess_state.fen")
|
||||
MAX_THINKING_SECONDS = 3
|
||||
from .game import ChessGame
|
||||
|
||||
def execute(cinput: ControlInput, graphics: Graphics, _):
|
||||
graphics.clear()
|
||||
draw = Draw(graphics)
|
||||
hist: list[sunfish.Position]
|
||||
searcher = sunfish.Searcher()
|
||||
|
||||
if path.exists(SAVE_FILE):
|
||||
with open(SAVE_FILE, "r") as fen:
|
||||
fenstr = fen.read()
|
||||
hist = [parseFEN(fenstr)]
|
||||
else:
|
||||
hist = [sunfish.Position(
|
||||
sunfish.initial, 0, (True,True), (True,True), 0, 0)]
|
||||
|
||||
player_color = 'wb'[get_color(hist[-1])]
|
||||
draw.draw_board(hist[-1], player_color)
|
||||
|
||||
state = GameState.MAIN_MENU
|
||||
menu_index = 0
|
||||
move = None
|
||||
score = None
|
||||
last_move = "Begin!"
|
||||
all_moves = dict()
|
||||
src_idx = 0
|
||||
dst_idx = 0
|
||||
src = ""
|
||||
|
||||
while True:
|
||||
key = None
|
||||
if state == GameState.MAIN_MENU:
|
||||
draw.draw_menu(menu_index)
|
||||
key = cinput.get_one_shot()
|
||||
elif state == GameState.THINKING:
|
||||
draw.draw_thinking(last_move)
|
||||
start = time.time()
|
||||
for _, move, score in searcher.search(hist[-1], hist):
|
||||
if time.time() - start > MAX_THINKING_SECONDS:
|
||||
break
|
||||
hist.append(hist[-1].move(move))
|
||||
draw.draw_board(hist[-1], player_color)
|
||||
last_move = move_str(move, player_color == "w")
|
||||
all_moves = dict()
|
||||
state = GameState.CHOOSE_SRC
|
||||
elif state == GameState.CHOOSE_SRC:
|
||||
if len(list(all_moves)) == 0:
|
||||
all_moves = get_all_moves(hist[-1])
|
||||
src = list(all_moves)[src_idx]
|
||||
draw.draw_select(last_move, list(all_moves)[src_idx])
|
||||
key = cinput.get_one_shot()
|
||||
elif state == GameState.CHOOSE_DST:
|
||||
src = list(all_moves)[src_idx]
|
||||
draw.draw_select(last_move, src, all_moves[src][dst_idx])
|
||||
key = cinput.get_one_shot()
|
||||
elif state == GameState.GAME_OVER:
|
||||
key = cinput.get_one_shot()
|
||||
|
||||
if state == GameState.MAIN_MENU:
|
||||
if key == Button.DIR_U:
|
||||
menu_index -= 1
|
||||
if menu_index < 0:
|
||||
menu_index = 0
|
||||
elif key == Button.DIR_D:
|
||||
menu_index += 1
|
||||
if menu_index > 3:
|
||||
menu_index = 3
|
||||
elif key == Button.BTN_B:
|
||||
if menu_index == 0:
|
||||
state = GameState.CHOOSE_SRC
|
||||
elif menu_index == 1:
|
||||
with open(SAVE_FILE, "w") as fen:
|
||||
fen.write(renderFEN(hist[-1]))
|
||||
return
|
||||
elif menu_index == 2 or menu_index == 3:
|
||||
pos = sunfish.Position(
|
||||
sunfish.initial, 0, (True,True), (True,True), 0, 0)
|
||||
if menu_index == 3:
|
||||
player_color = "b"
|
||||
state = GameState.THINKING
|
||||
else:
|
||||
player_color = "w"
|
||||
state = GameState.CHOOSE_SRC
|
||||
hist = [pos]
|
||||
draw.draw_board(hist[-1] if player_color == "w" else hist[-1].rotate(), player_color)
|
||||
elif state == GameState.CHOOSE_SRC:
|
||||
if key == Button.DIR_D or key == Button.DIR_R:
|
||||
src_idx += 1
|
||||
if src_idx >= len(all_moves.keys()):
|
||||
src_idx = 0
|
||||
elif key == Button.DIR_U or key == Button.DIR_L:
|
||||
src_idx -= 1
|
||||
if src_idx < 0:
|
||||
src_idx = len(list(all_moves)) - 1
|
||||
elif key == Button.BTN_A:
|
||||
state = GameState.MAIN_MENU
|
||||
elif key == Button.BTN_B:
|
||||
state = GameState.CHOOSE_DST
|
||||
elif state == GameState.CHOOSE_DST:
|
||||
if key == Button.DIR_D or key == Button.DIR_R:
|
||||
dst_idx += 1
|
||||
if dst_idx >= len(all_moves[src]):
|
||||
dst_idx = 0
|
||||
elif key == Button.DIR_U or key == Button.DIR_L:
|
||||
dst_idx -= 1
|
||||
if dst_idx < 0:
|
||||
dst_idx = len(all_moves[src]) - 1
|
||||
elif key == Button.BTN_A:
|
||||
state = GameState.CHOOSE_SRC
|
||||
elif key == Button.BTN_B:
|
||||
dst = all_moves[src][dst_idx]
|
||||
last_move = src + " - " + dst
|
||||
sfmove = sunfish.parse(src), sunfish.parse(dst)
|
||||
hist.append(hist[-1].move(sfmove))
|
||||
draw.draw_board(hist[-1].rotate(), player_color)
|
||||
state = GameState.THINKING
|
||||
else:
|
||||
if key == Button.BTN_A or key == Button.BTN_B:
|
||||
state = GameState.MAIN_MENU
|
||||
|
||||
def get_all_moves(pos: sunfish.Position):
|
||||
all_moves = dict()
|
||||
for src, dst in pos.gen_moves():
|
||||
all_moves.setdefault(sunfish.render(src), []).append(sunfish.render(dst))
|
||||
return all_moves
|
||||
|
||||
def move_str(move, shift = False):
|
||||
s = -119 if shift else 0
|
||||
return sunfish.render(s + move[0]) + " - " + sunfish.render(s + move[1])
|
||||
|
||||
def get_color(pos):
|
||||
return 1 if pos.board.startswith('\n') else 0
|
||||
|
||||
def parseFEN(fen):
|
||||
board, color, castling, enpas, _, _ = fen.split()
|
||||
board = re.sub(r'\d', (lambda m: '.'*int(m.group(0))), board)
|
||||
board = list(21*' ' + ' '.join(board.split('/')) + 21*' ')
|
||||
board[9::10] = ['\n']*12
|
||||
board = ''.join(board)
|
||||
wc = ('Q' in castling, 'K' in castling)
|
||||
bc = ('k' in castling, 'q' in castling)
|
||||
ep = sunfish.parse(enpas) if enpas != '-' else 0
|
||||
score = sum(sunfish.pst[p][i] for i,p in enumerate(board) if p.isupper())
|
||||
score -= sum(sunfish.pst[p.upper()][119-i] for i,p in enumerate(board) if p.islower())
|
||||
pos = sunfish.Position(board, score, wc, bc, ep, 0)
|
||||
return pos if color == 'w' else pos.rotate()
|
||||
|
||||
def renderFEN(pos, half_move_clock=0, full_move_clock=1):
|
||||
color = 'wb'[get_color(pos)]
|
||||
if color == 'b':
|
||||
pos = pos.rotate()
|
||||
board = '/'.join(pos.board.split())
|
||||
board = re.sub(r'\.+', (lambda m: str(len(m.group(0)))), board)
|
||||
castling = ''.join(itertools.compress('KQkq', pos.wc[::-1]+pos.bc)) or '-'
|
||||
ep = sunfish.render(pos.ep) if not pos.board[pos.ep].isspace() else '-'
|
||||
clock = '{} {}'.format(half_move_clock, full_move_clock)
|
||||
return ' '.join((board, color, castling, ep, clock))
|
||||
ChessGame(cinput, graphics).run()
|
||||
|
|
|
|||
194
plugin/chess/game.py
Normal file
194
plugin/chess/game.py
Normal file
|
|
@ -0,0 +1,194 @@
|
|||
from os import path
|
||||
from enum import Enum, auto
|
||||
import time
|
||||
from cinput import ControlInput, Button
|
||||
from graphics import Graphics
|
||||
from .draw import Draw
|
||||
from . import sunfish
|
||||
from . import util
|
||||
|
||||
class GameState(Enum):
|
||||
MAIN_MENU = auto()
|
||||
THINKING = auto()
|
||||
CHOOSE_SRC = auto()
|
||||
CHOOSE_DST = auto()
|
||||
GAME_OVER = auto()
|
||||
|
||||
class ChessGame:
|
||||
SAVE_FILE = path.join("data", "chess_state.fen")
|
||||
MAX_THINKING_SECONDS = 3
|
||||
|
||||
def __init__(self, cinput: ControlInput, graphics: Graphics):
|
||||
self._cinput = cinput
|
||||
self._draw = Draw(graphics)
|
||||
self._state = GameState.MAIN_MENU
|
||||
self._menu_index = 0
|
||||
self._searcher = sunfish.Searcher()
|
||||
|
||||
def _init_new_game(self, pos: sunfish.Position):
|
||||
self._hist = [pos]
|
||||
self._last_move = "Begin!"
|
||||
self._all_moves = dict()
|
||||
self._src_idx = 0
|
||||
self._dst_idx = 0
|
||||
self._draw.draw_board(self._hist[-1], self._player_color)
|
||||
|
||||
def _load_saved_or_init(self):
|
||||
if path.exists(self.SAVE_FILE):
|
||||
with open(self.SAVE_FILE, "r") as fen:
|
||||
fenstr = fen.read()
|
||||
pos = util.parseFEN(fenstr)
|
||||
self._player_color = util.get_color(pos)
|
||||
self._init_new_game(pos)
|
||||
else:
|
||||
self._player_color = "w"
|
||||
self._init_new_game(sunfish.Position(
|
||||
sunfish.initial, 0, (True,True), (True,True), 0, 0))
|
||||
|
||||
def _save_game(self):
|
||||
with open(self.SAVE_FILE, "w") as fen:
|
||||
fen.write(util.renderFEN(self._hist[-1]))
|
||||
|
||||
def run(self):
|
||||
# either load the save game or start a new one
|
||||
self._load_saved_or_init()
|
||||
|
||||
while True:
|
||||
key = None
|
||||
move = None
|
||||
src = ""
|
||||
|
||||
################
|
||||
# HANDLE STATE #
|
||||
################
|
||||
|
||||
# draw menu
|
||||
if self._state == GameState.MAIN_MENU:
|
||||
self._draw.draw_menu(self._menu_index)
|
||||
key = self._cinput.get_one_shot()
|
||||
|
||||
# computer makes a move
|
||||
elif self._state == GameState.THINKING:
|
||||
self._draw.draw_thinking(self._last_move)
|
||||
start = time.time()
|
||||
for _, self._move, self._score in self._searcher.search(
|
||||
self._hist[-1], self._hist):
|
||||
if time.time() - start > self.MAX_THINKING_SECONDS:
|
||||
break
|
||||
self._hist.append(self._hist[-1].move(self._move))
|
||||
self._draw.draw_board(self._hist[-1], self._player_color)
|
||||
self._last_move = util.move_str(move, self._player_color == "w")
|
||||
# reset user moves and move state to user's turn
|
||||
self._all_moves = dict()
|
||||
self._state = GameState.CHOOSE_SRC
|
||||
|
||||
# user picks source piece
|
||||
elif self._state == GameState.CHOOSE_SRC:
|
||||
if len(list(self._all_moves)) == 0:
|
||||
self._all_moves = util.get_all_moves(self._hist[-1])
|
||||
src = list(self._all_moves)[self._src_idx]
|
||||
self._draw.draw_select(self._last_move, src)
|
||||
key = self._cinput.get_one_shot()
|
||||
|
||||
# user picks dest square
|
||||
elif self._state == GameState.CHOOSE_DST:
|
||||
src = list(self._all_moves)[self._src_idx]
|
||||
dst = self._all_moves[src][self._dst_idx]
|
||||
self._draw.draw_select(self._last_move, src, dst)
|
||||
key = self._cinput.get_one_shot()
|
||||
|
||||
# game has ended
|
||||
elif self._state == GameState.GAME_OVER:
|
||||
key = self._cinput.get_one_shot()
|
||||
|
||||
################
|
||||
# HANDLE INPUT #
|
||||
################
|
||||
|
||||
# handle user input on main menu
|
||||
if self._state == GameState.MAIN_MENU:
|
||||
|
||||
# menu cursor up and down
|
||||
if key == Button.DIR_U:
|
||||
self._menu_index -= 1
|
||||
if self._menu_index < 0:
|
||||
self._menu_index = 0
|
||||
elif key == Button.DIR_D:
|
||||
self._menu_index += 1
|
||||
if self._menu_index > 3:
|
||||
self._menu_index = 3
|
||||
|
||||
# select current menu item
|
||||
elif key == Button.BTN_B:
|
||||
if self._menu_index == 0: # play current game
|
||||
self._state = GameState.CHOOSE_SRC
|
||||
elif self._menu_index == 1: # save and quit
|
||||
self._save_game()
|
||||
return
|
||||
elif self._menu_index == 2 or self._menu_index == 3: # new game
|
||||
pos = sunfish.Position(
|
||||
sunfish.initial, 0, (True,True), (True,True), 0, 0)
|
||||
if self._menu_index == 3:
|
||||
self._player_color = "b"
|
||||
self._state = GameState.THINKING
|
||||
else:
|
||||
self._player_color = "w"
|
||||
self._state = GameState.CHOOSE_SRC
|
||||
self._init_new_game(pos)
|
||||
# TODO: figure out why I need to do this
|
||||
self._draw.draw_board(
|
||||
pos if self._player_color == "w" else pos.rotate(), self._player_color)
|
||||
|
||||
# handle user input when selecting source piece
|
||||
# TODO: some kind of cursor indicator on board
|
||||
elif self._state == GameState.CHOOSE_SRC:
|
||||
# move between source pieces
|
||||
if key == Button.DIR_D or key == Button.DIR_R:
|
||||
self._src_idx += 1
|
||||
if self._src_idx >= len(self._all_moves.keys()):
|
||||
self._src_idx = 0
|
||||
elif key == Button.DIR_U or key == Button.DIR_L:
|
||||
self._src_idx -= 1
|
||||
if self._src_idx < 0:
|
||||
self._src_idx = len(list(self._all_moves)) - 1
|
||||
|
||||
# back out to main menu
|
||||
elif key == Button.BTN_A:
|
||||
self._state = GameState.MAIN_MENU
|
||||
|
||||
# move to destination picker
|
||||
elif key == Button.BTN_B:
|
||||
self._state = GameState.CHOOSE_DST
|
||||
|
||||
# handle user input when selecting dest piece
|
||||
elif self._state == GameState.CHOOSE_DST:
|
||||
# move between dest squares for the given source
|
||||
if key == Button.DIR_D or key == Button.DIR_R:
|
||||
self._dst_idx += 1
|
||||
if self._dst_idx >= len(self._all_moves[src]):
|
||||
self._dst_idx = 0
|
||||
elif key == Button.DIR_U or key == Button.DIR_L:
|
||||
self._dst_idx -= 1
|
||||
if self._dst_idx < 0:
|
||||
self._dst_idx = len(self._all_moves[src]) - 1
|
||||
|
||||
# back out to choose a different source piece
|
||||
elif key == Button.BTN_A:
|
||||
self._dst_idx = 0
|
||||
self._state = GameState.CHOOSE_SRC
|
||||
|
||||
# make the move
|
||||
elif key == Button.BTN_B:
|
||||
dst = self._all_moves[src][self._dst_idx]
|
||||
# TODO: fix rotation depending on player color
|
||||
self._last_move = src + " - " + dst
|
||||
sfmove = sunfish.parse(src), sunfish.parse(dst)
|
||||
self._hist.append(self._hist[-1].move(sfmove))
|
||||
self._draw.draw_board(self._hist[-1].rotate(), self._player_color)
|
||||
self._state = GameState.THINKING
|
||||
|
||||
# handle user input on game over
|
||||
else:
|
||||
if key == Button.BTN_A or key == Button.BTN_B:
|
||||
self._state = GameState.MAIN_MENU
|
||||
|
||||
41
plugin/chess/util.py
Normal file
41
plugin/chess/util.py
Normal file
|
|
@ -0,0 +1,41 @@
|
|||
import re
|
||||
import itertools
|
||||
from . import sunfish
|
||||
|
||||
def get_all_moves(pos: sunfish.Position):
|
||||
all_moves = dict()
|
||||
for src, dst in pos.gen_moves():
|
||||
all_moves.setdefault(sunfish.render(src), []).append(sunfish.render(dst))
|
||||
return all_moves
|
||||
|
||||
def move_str(move, shift = False):
|
||||
s = -119 if shift else 0
|
||||
return sunfish.render(s + move[0]) + " - " + sunfish.render(s + move[1])
|
||||
|
||||
def get_color(pos):
|
||||
return "wb"[1 if pos.board.startswith("\n") else 0]
|
||||
|
||||
def parseFEN(fen):
|
||||
board, color, castling, enpas, _, _ = fen.split()
|
||||
board = re.sub(r"\d", (lambda m: "."*int(m.group(0))), board)
|
||||
board = list(21*" " + " ".join(board.split("/")) + 21*" ")
|
||||
board[9::10] = ["\n"]*12
|
||||
board = "".join(board)
|
||||
wc = ("Q" in castling, "K" in castling)
|
||||
bc = ("k" in castling, "q" in castling)
|
||||
ep = sunfish.parse(enpas) if enpas != "-" else 0
|
||||
score = sum(sunfish.pst[p][i] for i,p in enumerate(board) if p.isupper())
|
||||
score -= sum(sunfish.pst[p.upper()][119-i] for i,p in enumerate(board) if p.islower())
|
||||
pos = sunfish.Position(board, score, wc, bc, ep, 0)
|
||||
return pos if color == "w" else pos.rotate()
|
||||
|
||||
def renderFEN(pos, half_move_clock=0, full_move_clock=1):
|
||||
color = get_color(pos)
|
||||
if color == "b":
|
||||
pos = pos.rotate()
|
||||
board = "/".join(pos.board.split())
|
||||
board = re.sub(r"\.+", (lambda m: str(len(m.group(0)))), board)
|
||||
castling = "".join(itertools.compress("KQkq", pos.wc[::-1]+pos.bc)) or "-"
|
||||
ep = sunfish.render(pos.ep) if not pos.board[pos.ep].isspace() else "-"
|
||||
clock = "{} {}".format(half_move_clock, full_move_clock)
|
||||
return " ".join((board, color, castling, ep, clock))
|
||||
Reference in a new issue