private void CheckGameStatus()
{
if (MapStatus == GameEnum.MapStat.Filling)
{
foreach (Square s in squareList)
{
if (s.SquareValue == "0" || !s.IsValidate)
return;
}
MapStatus = GameEnum.MapStat.Completed;
}
}
public void Init()
{
List<List<string>> triedValue = new List<List<string>>();
for (int i = 0; i < this.squareList.Count; i++)
{
triedValue.Add(new List<string>());
}
Random r = new Random();
for (int i = 0; i < this.squareList.Count; i++)
{
Square s = squareList[i];
List<string> plist = s.ValidateValue.FindAll(obj => (!triedValue[i].Exists(obj2 => (obj2 == obj))));
if (plist.Count > 0)
{
s.SquareValue = plist[r.Next(0, plist.Count)];
triedValue[i].Add(s.SquareValue);
}
else //trace back
{
s.SquareValue = "0";
//Once we trace a square back and fill it again with a new value, the following square's tried history should be cleared;
for (int j = i + 1; j < this.squareList.Count; j++)
{
triedValue[j].Clear();
}
i -= 2;
}
}
MapStatus = GameEnum.MapStat.Init;
}
public void EraseRandomSquare(int eraseCount = 40)
{
Random r = new Random();
List<Square> emptySquare = new List<Square>();
while (emptySquare.Count < eraseCount)
{
emptySquare = squareList.FindAll(obj => obj.SquareValue == "0");
Square s = squareList[r.Next(0, squareList.Count)];
if (s.SquareValue != "0")
{
string temp = s.SquareValue;
s.SquareValue = "0";
if (!this.HasUniqueSolution())
{
s.SquareValue = temp;
continue;
}
DrawMap();
}
}
MapStatus = GameEnum.MapStat.Filling;
}
