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//function make_move(board, y, x, new_y, new_x) {
//
// board[new_y][new_x] = board[y][x]
// board[y][x] = 0
//
// check = check_check(board, to_move, check)
//
// if (check) {
// console.log("check")
// }
//}
function make_move(board, prev_y_x, new_y_x) {
if ((board[prev_y_x[0][0]][prev_y_x[0][1]] == 6 || board[prev_y_x[0][0]][prev_y_x[0][1]] == -6) && board[new_y_x[0][0]][new_y_x[0][1]] == 0 && new_y_x[0][1] != prev_y_x[0][1]) {
if (board[prev_y_x[0][0]][prev_y_x[0][1]] == 6) {
board[3][en_passant] = 0
} else {
board[4][en_passant] = 0
}
en_passant_move = en_passant
}
en_passant = -1
for (let i = 0; i < new_y_x.length; i++) {
if (board[prev_y_x[i][0]][prev_y_x[i][1]] == 6 && prev_y_x[i][0] - new_y_x[i][0] == 2) {
en_passant = prev_y_x[i][1]
}
if (board[prev_y_x[i][0]][prev_y_x[i][1]] == -6 && prev_y_x[i][0] - new_y_x[i][0] == -2) {
en_passant = prev_y_x[i][1]
}
board[new_y_x[i][0]][new_y_x[i][1]] = board[prev_y_x[i][0]][prev_y_x[i][1]]
}
for (let i = 0; i < prev_y_x.length; i++) {
let color = board[prev_y_x[i][0]][prev_y_x[i][1]] > 0
if (Math.abs(board[prev_y_x[i][0]][prev_y_x[i][1]]) == 1) {
if (color) castle_white_short = castle_white_long = false
else castle_black_short = castle_black_long = false
} else if (Math.abs(board[prev_y_x[i][0]][prev_y_x[i][1]]) == 3) {
if (prev_y_x[i][1] == 0) {
if (color) castle_white_long = false
else castle_black_long = false
} else if (prev_y_x[i][1] == 7) {
if (color) castle_white_short = false
else castle_black_short = false
}
}
board[prev_y_x[i][0]][prev_y_x[i][1]] = 0
}
if (board[new_y_x[0][0]][new_y_x[0][1]] == 6 && new_y_x[0][0] == 0 || board[new_y_x[0][0]][new_y_x[0][1]] == -6 && new_y_x[0][0] == 7) {
let color = board[new_y_x[0][0]][new_y_x[0][1]] > 0
handle_promotion(color, new_y_x[0][0], new_y_x[0][1])
}
check = check_check(board, to_move, check)
if (check) {
console.log("check")
}
}
function handle_promotion(color, y, x) {
let promotion_window = document.getElementById('promotion-window')
promotion_window.style.visibility = "visible"
let queen_option = document.getElementById('queen')
queen_option.onclick = () => {
let promotion_piece = color ? 2 : -2
board[y][x] = promotion_piece
promotion_window.style.visibility = "hidden"
let to_element = document.getElementById(`${y}${x}`)
while (to_element.firstChild) {
to_element.removeChild(to_element.firstChild)
}
let piece = document.createElement('p')
piece.classList.add(promotion_piece > 0 ? 'w' : 'b', 'piece')
piece.append('Q')
to_element.append(piece)
return
}
let rook_option = document.getElementById('rook')
rook_option.onclick = () => {
let promotion_piece = color ? 3 : -3
board[y][x] = promotion_piece
promotion_window.style.visibility = "hidden"
let to_element = document.getElementById(`${y}${x}`)
while (to_element.firstChild) {
to_element.removeChild(to_element.firstChild)
}
let piece = document.createElement('p')
piece.classList.add(promotion_piece > 0 ? 'w' : 'b', 'piece')
piece.append('R')
to_element.append(piece)
return
}
let bishop_option = document.getElementById('bishop')
bishop_option.onclick = () => {
let promotion_piece = color ? 4 : -4
board[y][x] = promotion_piece
promotion_window.style.visibility = "hidden"
let to_element = document.getElementById(`${y}${x}`)
while (to_element.firstChild) {
to_element.removeChild(to_element.firstChild)
}
let piece = document.createElement('p')
piece.classList.add(promotion_piece > 0 ? 'w' : 'b', 'piece')
piece.append('B')
to_element.append(piece)
return
}
let knight_option = document.getElementById('knight')
knight_option.onclick = () => {
let promotion_piece = color ? 5 : -5
board[y][x] = promotion_piece
promotion_window.style.visibility = "hidden"
let to_element = document.getElementById(`${y}${x}`)
while (to_element.firstChild) {
to_element.removeChild(to_element.firstChild)
}
let piece = document.createElement('p')
piece.classList.add(promotion_piece > 0 ? 'w' : 'b', 'piece')
piece.append('N')
to_element.append(piece)
return
}
}
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