/// <summary>
/// True, if the item has the same current position and the other equality conditions
/// </summary>
/// <param name="item">Item to compare</param>
public bool Equals(PatternItem item)
{
var sameOrientation = (item.CurrentOrientation == Orientation.None || this.CurrentOrientation == Orientation.None) || item.CurrentOrientation == this.CurrentOrientation;
var sameTargetPos = (item.TargetPosition == CubeFlag.None || this.TargetPosition == CubeFlag.None) || item.TargetPosition == this.TargetPosition;
var result = item.CurrentPosition.Flags == this.CurrentPosition.Flags && sameOrientation && sameTargetPos;
return result;
}
private void CompleteF2L()
{
List<Tuple<Cube, Cube>> unsolvedPairs = GetPairs(this.Rubik).ToList();
while (unsolvedPairs.Count > 0) // 4 pairs
{
Tuple<Cube, Cube> currentPair = unsolvedPairs.First();
Cube edge = currentPair.Item1;
Cube corner = currentPair.Item2;
CubePosition target = new CubePosition(Rubik.GetTargetFlags(corner));
if (!corner.Position.HasFlag(CubeFlag.TopLayer) && Rubik.GetTargetFlags(corner) != corner.Position.Flags)
{
CubeFlag rotationLayer = CubeFlagService.FirstNotInvalidFlag(corner.Position.Flags, CubeFlag.BottomLayer);
bool direction = new TestScenario(Rubik, new LayerMove(rotationLayer)).TestCubePosition(corner, CubeFlag.TopLayer);
SolverMove(rotationLayer, direction);
SolverMove(CubeFlag.TopLayer, true);
SolverMove(rotationLayer, !direction);
}
// move edge to top position if necessary
if (!edge.Position.HasFlag(CubeFlag.TopLayer) && Rubik.GetTargetFlags(edge) != edge.Position.Flags)
{
CubeFlag rotationLayer = CubeFlagService.FirstNotInvalidFlag(edge.Position.Flags, CubeFlag.MiddleLayer);
bool direction = new TestScenario(Rubik, new LayerMove(rotationLayer)).TestCubePosition(edge, CubeFlag.TopLayer);
SolverMove(rotationLayer, direction);
while ((corner.Position.HasFlag(rotationLayer) && !corner.Position.HasFlag(CubeFlag.BottomLayer)) || edge.Position.HasFlag(rotationLayer)) SolverMove(CubeFlag.TopLayer, true);
SolverMove(rotationLayer, !direction);
}
// detect right and front slice
CubeFlag rightSlice = CubeFlagService.ToInt(target.X) == CubeFlagService.ToInt(target.Z) ? target.Z : target.X;
CubeFlag frontSlice = CubeFlagService.FirstNotInvalidFlag(target.Flags, CubeFlag.YFlags | rightSlice);
while (!corner.Position.HasFlag(target.Flags & ~CubeFlag.BottomLayer)) SolverMove(CubeFlag.TopLayer, true);
PatternFilter filter = new PatternFilter(new Func<Pattern, Pattern, bool>(delegate(Pattern p1, Pattern p2)
{
PatternItem item = new PatternItem(corner.Position, Solvability.GetOrientation(this.Rubik, corner),target.Flags);
return p2.Items.Any(i => i.Equals(item));
}), true);
Algorithm algo = null;
for (int i = 0; i < 4; i++)
{
F2LPattern pattern = new F2LPattern(Rubik.GetTargetFlags(edge), Rubik.GetTargetFlags(corner), rightSlice, frontSlice);
algo = pattern.FindBestMatch(Pattern.FromRubik(Rubik), CubeFlag.None, filter);
if (algo != null) { SolverAlgorithm(algo); break; }
SolverMove(CubeFlag.TopLayer, true);
}
int count = unsolvedPairs.Count;
unsolvedPairs = GetPairs(this.Rubik).ToList();
if (unsolvedPairs.Count == count)
{
this.BroadcastOnSolutionError("Complete first two layers", "Wrong algorithm");
return;
}
}
}