private int UnstackOneSeries(ref board tb)
{
int Any = 0;
cUnstackOrder[] cUO;
column cCol;
card CardExposed;
PlaceHolder.Clear();
cUO = new cUnstackOrder[tb.NumFacedownColumns()];
int i = 0;
tb.CopyWorkingCards(ref xBottomMost, GlobalClass.WorkingType.tBottomMost);
tb.CopyWorkingInts(ref xEmpties, GlobalClass.WorkingType.tEmpties);
tb.BuildPlaceholders(ref PlaceHolder);
// get best unstack order in case we cannot unstack all of them
i = 0;
foreach (int e in tb.NonEmpties)
{
cCol = tb.ThisColumn[e];
if (cCol.top == 0)
{
continue;
}
int nSEQ = cCol.ThisSeries.Count;
int nSOS = cCol.ThisSOS.Count;
cUO[i++] = new cUnstackOrder(e, nSEQ);
}
Array.Sort(cUO, delegate(cUnstackOrder c1, cUnstackOrder c2)
{
return(c1.SizeSeries.CompareTo(c2.SizeSeries));
});
foreach (cUnstackOrder uo in cUO)
{
cCol = tb.ThisColumn[uo.e];
for (i = uo.SizeSeries - 1; i >= 0; i--)
{
series s = cCol.ThisSeries[i];
int iStack = utils.GetBestMove(s.topCard, ref tb, ref PlaceHolder);
if (iStack < 0)
{
if (xEmpties.Count == 0)
{
return(Any);
}
iStack = xEmpties[0];
xEmpties.RemoveAt(0);
}
CardExposed = tb.PerformMove(s.iStack, s.top, iStack, s.size);
RecoverPlaceholder(ref tb, ref CardExposed);
Any++;
}
if (Any > 0)
{
return(Any);
}
}
return(Any);
}