private void IteratePhase1(ISolveCoordinator solveCoordinator)
{
uint nextDepth;
if (Cube.FlipsliceTwistDepthMod3 == 0)
{
nextDepth = 2;
}
else
{
nextDepth = Cube.FlipsliceTwistDepthMod3 - 1;
}
if (nextDepth + 1 + MovesDeep >= solveCoordinator.MaxTotalMoves)
{
return;//No way to solve in time
}
ImmutableArray <Move> moves;
if (MovesSoFar.Any())
{
moves = MoveExtensions.PossibleNextMovesPhase1[(int)MovesSoFar.Head];
}
else
{
moves = MoveExtensions.AllMoves;
}
foreach (var moveEnum in moves)
{
var nextCube = Cube.Move(moveEnum, solveCoordinator.DataSource);
var nextIsDeepening = nextCube.FlipsliceTwistDepthMod3 == nextDepth;
if (nextIsDeepening || (!Deepening && MovesDeep <= 2)) //Once we are deepening, we do not allow non-deepening moves
{
var nextState = new SearchState(Invert, Rotation, nextCube, MovesSoFar.Prepend(moveEnum),
nextIsDeepening);
solveCoordinator.MaybeAddSearch(nextState);
}
}
}