public static void Link(Pice pice1, LinkDirectory directory, Pice pice2)
{
// set pice1
{
var info = new Linking();
info.directory = directory;
info.pice = pice2;
pice1.linkingList.Add(info);
if (pice1.linkingList.Count == 1)
{
pice1.FlashAsLink();
}
}
// set pice2
{
var info = new Linking();
info.directory = LinkDirectoryUtil.Reverse(directory);
info.pice = pice1;
pice2.linkingList.Add(info);
if (pice2.linkingList.Count == 1)
{
pice2.FlashAsLink();
}
}
}
public static void TryLink(Pice pice1, LinkDirectory directory, Pice pice2)
{
// 如果任一 pice 不在 board 上，则不予处理
if (pice1.owner != PiceOwner.Board || pice2.owner != PiceOwner.Board)
{
return;
}
// 如果 pice1 的指定方向上已经连结，则不予处理
var alreadyLinked = false;
pice1.linkingList.ForEach(info => {
if (info.directory == directory)
{
alreadyLinked = true;
}
});
if (alreadyLinked)
{
return;
}
// 连接两个 pice
Link(pice1, directory, pice2);
}
public static LinkDirectory Reverse(LinkDirectory directory)
{
switch (directory)
{
case LinkDirectory.Left:
return(LinkDirectory.Right);
case LinkDirectory.Right:
return(LinkDirectory.Left);
case LinkDirectory.Top:
return(LinkDirectory.Bottom);
case LinkDirectory.Bottom:
return(LinkDirectory.Top);
default:
throw new Exception("unsupport directory: " + directory);
}
}
