/**
* promotion_dialog_markup()
*/
function promotion_dialog_markup($href_this, $current_player, $row, $col, $history)
{
$current_player = !$current_player;
$player_pieces = get_player_pieces($current_player);
$field = rowcol_to_field($row, $col);
$ret = "<ul class=\"popup\">\n";
$field_code = encode_field($field);
$code_r = '(' . $field_code . $player_pieces[PIECE_ROOK] . ')';
$code_k = '(' . $field_code . $player_pieces[PIECE_KNIGHT] . ')';
$code_b = '(' . $field_code . $player_pieces[PIECE_BISHOP] . ')';
$code_q = '(' . $field_code . $player_pieces[PIECE_QUEEN] . ')';
if ($current_player == WHITES_MOVE) {
$color = GET_WHITE;
$next_player = GET_BLACK;
} else {
$color = GET_BLACK;
$next_player = GET_WHITE;
}
$t_color = ucfirst($color);
$href_this = update_href($href_this, GET_PLAYER, $next_player);
$href_r = update_href($href_this, GET_HISTORY, $history . $code_r);
$href_n = update_href($href_this, GET_HISTORY, $history . $code_k);
$href_b = update_href($href_this, GET_HISTORY, $history . $code_b);
$href_q = update_href($href_this, GET_HISTORY, $history . $code_q);
if (USE_UNICODE_GLYPHS) {
$r = '♖';
$n = '♘';
$b = '♗';
$q = '♕';
} else {
$r = $player_pieces[PIECE_ROOK];
$n = $player_pieces[PIECE_KNIGHT];
$b = $player_pieces[PIECE_BISHOP];
$q = $player_pieces[PIECE_QUEEN];
}
$ret .= "<li><a href=\"{$href_r}\"><div class=\"{$color} rook\" title=\"{$t_color} rook\">{$r}</div></a>\n";
$ret .= "<li><a href=\"{$href_n}\"><div class=\"{$color} knight\" title=\"{$t_color} knight\">{$n}</div></a>\n";
$ret .= "<li><a href=\"{$href_b}\"><div class=\"{$color} bishop\" title=\"{$t_color} bishop\">{$b}</div></a>\n";
$ret .= "<li><a href=\"{$href_q}\"><div class=\"{$color} queen\" title=\"{$t_color} queen\">{$q}</div></a>\n";
$ret .= "</ul>\n\n";
return $ret;
}
/**
* find_movable_pieces() - Creates $clickable (Array of field names)
* Checks the board for pieces that can be moved.
* If all your pieces are boxed in or any move would result in your king to
* get into check, an empty array is returned, indicating the end of the game.
*/
function find_movable_pieces($board_array, $current_player)
{
$ret = array();
$player_pieces = get_player_pieces($current_player);
for ($row = 0; $row < 8; $row++) {
for ($col = 0; $col < 8; $col++) {
$piece = $board_array[$row][$col];
if ($piece != '' && strpos($player_pieces, $piece) !== false) {
$field = rowcol_to_field($row, $col);
// Check, if piece can move at all
$moves = possible_move_list($board_array, $current_player, $field);
// First entry of the returned move list is
// the FIELD of the currently checked piece:
if (isset($moves[1])) {
$ret[] = $field;
// == $moves[0];
}
}
}
}
return $ret;
}