I am working on a text-based chess project in python, and I have set up a pretty nice looking chess board in my output console. But whenever I try to place a piece somewhere, it fills up the entire file.
The code I used is here:
import os
global arrowKey
global speed
newchar = ''
arrowKey = {'\x1b[A': 'up'}
class Pieces:
Black_rook = '♜'
Black_knight = '♞'
Black_bishop = '♝'
Black_queen = '♛'
Black_king = '♚'
Black_pawn = '♟︎'
White_rook = '♖'
White_knight = '♘'
White_bishop = '♗'
White_queen = '♕'
White_king = '♔'
White_pawn = '♙'
class Array:
def __init__(self, x=16, y=8, board=None):
self.pos = ()
self.x = x
self.y = y
grid = [' ' + '_' * self.x]
for _ in range(y):
row = ['|']
for _ in range(x):
row.append(' ')
row.append('|')
grid.append(row)
grid.append(' ' + '‾' * self.x)
self.grid = grid
if board != None:
self.grid = board
def reload(self, say=None):
os.system('clear')
if say != None:
print(say)
p = ''
for i in self.grid:
p = p + ''.join([x for x in i]) + '\n'
print(p)
def insert(self, char, x, y):
self.pos = (x, y)
self.grid[y][x] = char
def move(self, direction, char):
poslist = []
for y, i in enumerate(self.grid):
for x, j in enumerate(i):
if j == char:
poslist.append((x, y))
count = 0
for posx, posy in poslist:
if direction == 'down':
if self.grid[posy + 1][posx] != '‾':
self.insert(' ', posx, posy)
self.insert(char, posx, posy + 1)
self.pos = (posx, posy + 1)
if direction == 'up':
if self.grid[posy - 1][posx] != '_':
self.insert(' ', posx, posy)
self.insert(char, posx, posy - 1)
self.pos = (posx, posy - 1)
if direction == 'left':
if self.grid[posy][posx - 1] != '|':
self.insert(' ', posx, posy)
self.insert(char, posx - 1, posy)
self.pos = (posx - 1, posy)
if direction == 'right':
if self.grid[posy][posx + 1] != '|':
self.insert(' ', posx, posy)
self.insert(char, posx + 1, posy)
self.pos = (posx + 1, posy)
count += 1
def getpos(self, char):
poslist = []
for y, i in enumerate(self.grid):
for x, j in enumerate(i):
if j == char:
poslist.append((x, y))
return poslist
class Chess(Array):
def __init__(self):
row = list(''.join(['.' for i in range(8)]))
board = [row for i in range(8)]
super().__init__(board=board)
def reload(self):
p = ''
nums = [i + 1 for i in range(8)]
nums.reverse()
for x, i in enumerate(self.grid):
i = [f'{z} ' for z in i]
p += f'{nums[x]} {"".join(i)}\n'
add = [i + ' ' for i in list('ABCDEFG')]
add.append('H')
p += ' ' + ''.join(add) + '\n'
print(p)
def move(self, move:str):
move = move.split(' ')
def placepiece(self, piece, pos):
pos = list(pos)
ykey = [i for i in range(8)]
ykey.reverse()
x = [x for x, i in enumerate('ABCDEF') if i == pos[0]][0]
y = ykey[int(pos[1]) - 1]
x = int(x)
return x, y
board = Chess()
x, y = board.placepiece(Pieces.White_pawn, 'E4')
board.grid[y][x] = Pieces.White_pawn
print(board.grid)
board.reload()
I expected to get a white pawn character at E4 on the array, but it filled up the entire file like this. Could someone help me with this? I have used 2D arrays in many other projects before, but never encountered this issue. I am happy to elaborate further on anything you need me to.
>Solution :
The problem is in
class Chess(Array):
def __init__(self):
row = list(''.join(['.' for i in range(8)]))
board = [row for i in range(8)]
super().__init__(board=board)
You are creating a single list and referencing it multiple times in board.
Change to: board = [row.copy() for i in range(8)]