List <Step> GetLinkWhiteSteps(StepBlock block)
{
List <Step> whites = new List <Step>();
foreach (var step in block.Steps)
{
LinkSteps(step, StoneColor.White).ForEach(s => {
if (!whites.Contains(s))
{
whites.Add(s);
}
});
}
return(whites);
}
List <Step> GetLinkBlackSteps(StepBlock block)
{
List <Step> blacks = new List <Step>();
foreach (var step in block.Steps)
{
LinkSteps(step, StoneColor.Black).ForEach(s => {
if (!blacks.Contains(s))
{
blacks.Add(s);
}
});
}
return(blacks);
}
List <Step> GetLinkEmptySteps(StepBlock block)
{
List <Step> empties = new List <Step>();
foreach (var step in block.Steps)
{
LinkSteps(step, StoneColor.Empty).ForEach(s => {
if (!empties.Contains(s))
{
empties.Add(s);
}
});
}
block.EmptyCount = empties.Count;
block.Steps.ForEach(s => s.EmptyCount = block.EmptyCount);
return(empties);
}
private Pos GetPos(StepBlock block, List <Step> empties) // For CanLevy()
{
Pos p = m_InvalidPos;
if (empties.Count != 2)
{
return(p);
}
foreach (var item in block.Steps)
{
var i_empties = LinkSteps(item);
if (i_empties.Contains(empties[0]) && i_empties.Contains(empties[1]))
{
p = GetPos(item);
break;
}
}
return(p);
}
bool UpdateDeadBlocks(List <StepBlock> selfBlocks)
{
bool result = false;
List <StepBlock> blocks = new List <StepBlock>();
foreach (var item in selfBlocks)
{
blocks.Add(item); //copy
}
foreach (var block in blocks)
{
List <Step> empties = GetLinkEmptySteps(block);
block.EmptyCount = empties.Count;
if (empties.Count == 0)
{
if (block.Steps.Count == 1)
{
var step = block.Steps[0];
var otherColor = step.StoneColor == StoneColor.Black ? StoneColor.White : StoneColor.Black;
var links = LinkSteps(step, otherColor);
bool isBanOnce = true;
foreach (var link in links)
{
// 0：为吃对方时的气数，多子时可以倒扑。
if (link.EmptyCount == 0 && LinkSteps(link, link.StoneColor).Count > 1)
{
isBanOnce = false;
}
}
if (isBanOnce) // 为倒扑
{
m_BanOnce.Row = block.Steps[0].Row;
m_BanOnce.Col = block.Steps[0].Col;
m_BanOnce.StepCount = block.Steps[0].StepCount;
}
}
StepBlock deadInfo = new StepBlock();
foreach (var dead in block.Steps)
{
var d = CloneStep(dead);
deadInfo.Steps.Add(d);
if (dead.StoneColor == StoneColor.Black)
{
m_BlackSteps.Remove(dead);
}
else if (dead.StoneColor == StoneColor.White)
{
m_WhiteSteps.Remove(dead);
}
m_EmptySteps.Add(dead);
HideStep(dead);
}
if (m_DeadBlocks.Keys.Contains(m_StepCount))
{
foreach (var item in deadInfo.Steps)
{
if (!m_DeadBlocks[m_StepCount].Steps.Contains(item))
{
m_DeadBlocks[m_StepCount].Steps.Add(item);
}
}
}
else
{
m_DeadBlocks[m_StepCount] = deadInfo;
}
selfBlocks.Remove(block);
result = true;
}
}
return(result);
}
private void UpdateStepBlocks(List <Step> steps, List <StepBlock> blocks)
{
List <Step> copySteps = new List <Step>();
foreach (var item in steps)
{
copySteps.Add(item);
}
if (copySteps.Count == 0)
{
return;
}
var tmp = new List <Step>();
foreach (var step in copySteps)
{
if (tmp.Count == 0)
{
tmp.Add(step);
}
var sameLinks = LinkSteps(step, step.StoneColor);
if (tmp.Intersect(sameLinks).Count() != 0)
{
sameLinks.ForEach(s => { if (!tmp.Contains(s))
{
tmp.Add(s);
}
});
}
}
for (int i = 0; i < 6; i++)
{
foreach (var step in copySteps) // 防止遗漏
{
var sameLinks = LinkSteps(step, step.StoneColor);
if (tmp.Intersect(sameLinks).Count() != 0)
{
sameLinks.ForEach(s => { if (!tmp.Contains(s))
{
tmp.Add(s);
}
});
}
}
}
if (tmp.Count == 0)
{
return;
}
StepBlock block = new StepBlock();
block.Steps = tmp;
block.UpdateBlockId();
blocks.Add(block);
copySteps.RemoveAll(s => tmp.Contains(s)); // next block
UpdateStepBlocks(copySteps, blocks); // 递归
}