我正在尝试使用 php 制作文字搜索游戏。首先,我将创建表格/网格,然后用随机字母填充表格,然后我将用单词的字母替换随机字母,并确定单词水平、垂直或对角线的方向。问题是,单词的字母相互交叉,这把桌子弄乱了。问题是,
- 如何设置单词字母不相交的条件
- 如何判断当前位置是否已经被其他单词字母占据?
我对它们不断相互交叉的单词字母有疑问。任何的想法?
$row = 5;
$col = 5;
$characters = range('a','z');
$max = count($characters) - 1;
$rc = array();
for ($r=1;$r<=$row;$r++)
{
for ($c=1;$c<=$col;$c++)
{
$rc['r'.$r.'c'.$c] = $characters[mt_rand(0,$max)];
$fill['r'.$r.'c'.$c] = '';
}
}
$directions = array('H', 'V', 'D');
$wrdList =array('four', 'data', 'howl');
foreach ($wrdList as $wrd)
{
$wrdLen = strlen($wrd);
$dir = $directions[mt_rand(0,2)];
if ($dir =="H" or $dir=="D" )
{
$limitRow = $row - $wrdLen+1;
$limitCol = $col - $wrdLen+1;
$startPointRow = 1;
$startPointCol = 1;
}
elseif ($dir=="V")
{
$limitRow = $row - $wrdLen + 1;
$limitCol = $col;
$startPointRow = 1;
$startPointCol = 1;
}
$temprow = mt_rand($startPointRow,$limitRow);
$tempcol = mt_rand($startPointCol,$limitCol);
while($wrdLen >0)
{
$thisChar= substr($wrd,0,1);
$wrd = substr($wrd,1);
$wrdLen--;
$x = 'r'.$temprow.'c'.$tempcol;
$rc[$x] = $thisChar;
$fill[$x] = '#2952f8';
if($dir=="D")
{
$tempcol++;
$temprow++;
}
elseif($dir=="V")
{
$temprow++;
}
elseif($dir=="H")
{
$tempcol++;
}
}
}
#--Display the random letters and the words
echo '<table style="border:1px solid #000">';
for ($r=1;$r<=$row;$r++)
{
echo '<tr style="border:1px solid #000">';
for ($c=1;$c<=$col;$c++)
{
$thisChar=$rc['r'.$r.'c'.$c];
$fills = $fill['r'.$r.'c'.$c];
echo '<td style="border:1px solid #000; background-color: '.$fills.'">';
echo $thisChar;
echo '</td>';
}
echo '</tr>';
}
echo '</table>';
?>