/// <summary>
/// Returns the backward move of the given move.
/// A "backward move" of a move has all the seed movements in the converse order, and each seed movement has swapped "FromPit" and "ToPit".
/// </summary>
public Move GetBackwardMove()
{
Move backMove = new Move();
// Walk backwards through the list of seed movements:
for (int index = _seedMovementList.Count - 1; index >= 0; --index)
{
// Take the seed movement at position "index":
SeedMovement origSeedMovement = _seedMovementList[index];
// Create a new seed movement that has swapped FromPit and ToPit:
SeedMovement backSeedMovement = new SeedMovement(origSeedMovement.ToPit, origSeedMovement.FromPit, origSeedMovement.NumberOfSeeds);
// Add the new seed movement to the backward move:
backMove.AddSeedMovement(backSeedMovement);
}
return backMove;
}
/// <summary>Moves all seeds into the respective Kalahs.</summary>
public Move CollectFinalSeeds(Player firstPlayer, Player secondPlayer)
{
Move move = new Move();
Player currentPlayer = firstPlayer;
for (int playerIndex = 0; playerIndex < 2; ++playerIndex)
{
Pit currentPlayersKalah = GetKalahOfPlayer(currentPlayer);
int internalIndexOfKalah = GetInternalIndexOfKalah(currentPlayer);
for (int pitIndex = 0; pitIndex < _numHousesPerPlayer; ++pitIndex)
{
Pit currentPit = GetPitOfPlayer(currentPlayer, pitIndex);
if (currentPit.GetNumberofSeeds() > 0)
{
int currentPitsInternalIndex = GetInternalPitIndex(currentPlayer, pitIndex);
move.AddSeedMovement(new SeedMovement(currentPitsInternalIndex, internalIndexOfKalah, currentPit.GetNumberofSeeds()));
currentPlayersKalah.AddSeeds(currentPit.GetNumberofSeeds());
currentPit.RemoveAllSeeds();
}
}
currentPlayer = secondPlayer;
}
return move;
}