public Game TryMove(Player p, int index, out bool error)
{
Game result = new Game();
result.LoadState(this);
error = false;
List <List <int> > holes = new List <List <int> >();
holes.Add(result.playerAHoles);
if (p == Player.A)
{
holes.Add(result.playerBHoles);
}
else
{
holes.Insert(0, result.playerBHoles);
}
if (holes[0][index] == 0 || p != CurrentPlayer)
{
error = true;
return(null);
}
int stones = holes[0][index];
holes[0][index] = 0;
Player nextWellOwner = p;
bool keepTurnFlag = true;
while (stones > 0)
{
index++;
keepTurnFlag = false;
if (index == GameSize)
{
holes.Add(holes[0]);
holes.RemoveAt(0);
index = 0;
if (nextWellOwner == p)
{
stones--;
if (p == Player.A)
{
result.playerAWell++;
}
else
{
result.playerBWell++;
}
keepTurnFlag = true;
}
nextWellOwner = PlayerUtils.Other(nextWellOwner);
}
if (stones > 0)
{
holes[0][index]++;
stones--;
if (holes[0][index] == 1 && nextWellOwner == p && stones == 0)
{
// Strike
keepTurnFlag = false;
if (p == Player.A)
{
result.playerAWell += holes[1][GameSize - index - 1];
result.playerAWell += holes[0][index];
}
else
{
result.playerBWell += holes[1][GameSize - index - 1];
result.playerBWell += holes[0][index];
}
holes[1][GameSize - index - 1] = 0;
holes[0][index] = 0;
}
}
}
result.CurrentPlayer = PlayerUtils.Other(result.CurrentPlayer);
if (keepTurnFlag)
{
result.Pass(result.CurrentPlayer);
}
return(result);
}