private static CellRect FindLargestRectAt(IntVec3 c, Map map, HashSet <IntVec3> processed, Predicate <IntVec3> predicate)
{
if (processed.Contains(c) || !predicate(c))
{
return(CellRect.Empty);
}
CellRect rect = CellRect.SingleCell(c);
bool flag;
do
{
flag = false;
if (rect.Width <= rect.Height)
{
if (rect.maxX + 1 < map.Size.x && CanExpand(Rot4.East))
{
rect.maxX++;
flag = true;
}
if (rect.minX > 0 && CanExpand(Rot4.West))
{
rect.minX--;
flag = true;
}
}
if (rect.Height <= rect.Width)
{
if (rect.maxZ + 1 < map.Size.z && CanExpand(Rot4.North))
{
rect.maxZ++;
flag = true;
}
if (rect.minZ > 0 && CanExpand(Rot4.South))
{
rect.minZ--;
flag = true;
}
}
}while (flag);
foreach (IntVec3 item in rect)
{
processed.Add(item);
}
return(rect);
bool CanExpand(Rot4 dir)
{
foreach (IntVec3 edgeCell in rect.GetEdgeCells(dir))
{
IntVec3 intVec = edgeCell + dir.FacingCell;
if (processed.Contains(intVec) || !predicate(intVec))
{
return(false);
}
}
return(true);
}
}
