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method.cpp
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/* This file is part of "GR Cube"
Copyright (C) 2022 German Ramos Rodriguez
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
German Ramos Rodriguez
Vigo, Spain
grvigo@hotmail.com
*/
#include "method.h"
#include <chrono>
#include <algorithm>
namespace grcube3
{
// Load algorithms collections needed
const Collection Method::Algset_OLL("algsets/OLL.xml", true);
const Collection Method::Algset_PLL("algsets/PLL.xml", true);
const Collection Method::Algset_1LLL("algsets/1LLL.xml", true);
const Collection Method::Algset_ZBLL("algsets/ZBLL.xml", true);
const Collection Method::Algset_OCLL("algsets/OCLL.xml", true);
const Collection Method::Algset_CMLL("algsets/CMLL.xml", true);
const Collection Method::Algset_COLL("algsets/COLL.xml", true);
const Collection Method::Algset_EPLL("algsets/EPLL.xml", true);
const Collection Method::Algset_2GLL("algsets/2GLL.xml", true);
const Collection Method::Algset_EOLE("algsets/EOLE.xml", true);
const Collection Method::Algset_6CO("algsets/6CO.xml", true);
const Collection Method::Algset_6CP("algsets/6CP.xml", true);
const Collection Method::Algset_APDR("algsets/APDR.xml", true);
const Collection Method::Algset_CDRLL("algsets/CDRLL.xml", true);
const Collection Method::Algset_DCAL("algsets/DCAL.xml", true);
const Collection Method::Algset_JTLE("algsets/JTLE.xml", true);
const Collection Method::Algset_L5EP("algsets/L5EP.xml", true);
const Collection Method::Algset_TDR("algsets/TDR.xml", true);
const Collection Method::Algset_NCLL("algsets/NCLL.xml", true);
const Collection Method::Algset_NCOLL("algsets/NCOLL.xml", true);
const Collection Method::Algset_TNCLL("algsets/TNCLL.xml", true);
const Collection Method::Algset_L5E("algsets/L5E.xml", true);
const Collection Method::Algset_EODF("algsets/EODF.xml", true);
DeepSearch Method::DS(""); // static initialization
// Search an algorithm from a collection to orientate the last layer
bool Method::OrientateLL(Algorithm& LLSolve, std::string &LLCase, const Collection& AlgSet,
const Plc Pol, const Metrics Met, const Cube& CubeBase)
{
LLSolve.Clear();
LLCase.clear();
// Only orientation algorithm collections
if (AlgSet.GetName() != "OLL" && AlgSet.GetName() != "OCLL") return false;
const Lyr UpLayer = Cube::GetUpSliceLayer(CubeBase.GetSpin()),
MidLayer = Cube::AdjacentLayer(UpLayer),
DownLayer = Cube::GetDownSliceLayer(CubeBase.GetSpin());
bool LL_Found = false;
Spn Spin1, Spin2; // Cube spins before and after applying algorithm
Stp StepS1, StepS2; // Steps to return cube to the start spin
for (uint LL_Index = 0u; LL_Index < AlgSet.GetCasesNumber(); LL_Index++)
{
Algorithm Alg = AlgSet.GetAlgorithm(LL_Index, Pol, Met);
for (const auto yLL: Algorithm::yTurns) // y turn before algorithm
{
Cube CubeLL = CubeBase;
CubeLL.ApplyStep(yLL);
Spin1 = CubeLL.GetSpin();
CubeLL.ApplyAlgorithm(Alg);
Spin2 = CubeLL.GetSpin();
if (Spin1 != Spin2)
{
Cube::GetSpinsSteps(Spin2, Spin1, StepS1, StepS2);
if (StepS1 != Stp::NONE) CubeLL.ApplyStep(StepS1);
if (StepS2 != Stp::NONE) CubeLL.ApplyStep(StepS2);
}
else StepS1 = StepS2 = Stp::NONE;
LL_Found = CubeLL.IsSolved(DownLayer) && CubeLL.IsSolved(MidLayer) && CubeLL.IsFaceOriented(UpLayer);
if (LL_Found)
{
LLCase = AlgSet.GetCaseName(LL_Index);
if (yLL != Stp::NONE)
{
// LLSolve.Append(Stp::PARENTHESIS_OPEN);
LLSolve.Append(yLL);
// LLSolve.Append(Stp::PARENTHESIS_CLOSE_1_REP);
}
LLSolve.Append(Alg);
// If the algorithm changes cube orientation, add a turn to recover up layer
if (Cube::GetUpSliceLayer(Spin1) != Cube::GetUpSliceLayer(Spin2))
{
// LLSolve.Append(Stp::PARENTHESIS_OPEN);
LLSolve.Append(StepS1);
if (StepS2 != Stp::NONE) LLSolve.Append(StepS2);
// LLSolve.Append(Stp::PARENTHESIS_CLOSE_1_REP);
}
break;
}
}
if (LL_Found) break; // Release for loop
}
return LL_Found;
}
// Search an algorithm from a collection to solve the last layer
bool Method::SolveLL(Algorithm& LLSolve, std::string &LLCase, Stp& AUFStep, const Collection& AlgSet,
const Plc Pol, const Metrics Met, const Cube& CubeBase)
{
LLSolve.Clear();
LLCase.clear();
AUFStep = Stp::NONE;
// Allowed collections
if (AlgSet.GetName() != "1LLL" && AlgSet.GetName() != "PLL" && AlgSet.GetName() != "ZBLL" &&
AlgSet.GetName() != "EPLL" && AlgSet.GetName() != "2GLL") return false;
bool LL_Found = false;
Spn Spin1, Spin2; // Cube spins before and after applying algorithm
Stp StepS1, StepS2; // Steps to return cube to the start spin
for (uint LL_Index = 0u; LL_Index < AlgSet.GetCasesNumber(); LL_Index++)
{
Algorithm Alg = AlgSet.GetAlgorithm(LL_Index, Pol, Met);
if (AlgSet.GetName() == "2GLL")
{
for (const auto ULL1 : Algorithm::UMovs) // U movement before algorithm
{
for (const auto ULL2 : Algorithm::UMovs) // U movement after algorithm (AUF)
{
Cube CubeLL = CubeBase;
CubeLL.ApplyStep(ULL1);
Spin1 = CubeLL.GetSpin();
CubeLL.ApplyAlgorithm(Alg);
Spin2 = CubeLL.GetSpin();
if (Spin1 != Spin2)
{
Cube::GetSpinsSteps(Spin2, Spin1, StepS1, StepS2);
if (StepS1 != Stp::NONE) CubeLL.ApplyStep(StepS1);
if (StepS2 != Stp::NONE) CubeLL.ApplyStep(StepS2);
}
else StepS1 = StepS2 = Stp::NONE;
CubeLL.ApplyStep(ULL2);
LL_Found = CubeLL.IsSolved();
if (LL_Found)
{
LLCase = AlgSet.GetCaseName(LL_Index);
if (ULL1 != Stp::NONE)
{
// LLSolve.Append(Stp::PARENTHESIS_OPEN);
LLSolve.Append(ULL1);
// LLSolve.Append(Stp::PARENTHESIS_CLOSE_1_REP);
}
LLSolve.Append(Alg);
if (Cube::GetUpSliceLayer(Spin1) != Cube::GetUpSliceLayer(Spin2))
{
// LLSolve.Append(Stp::PARENTHESIS_OPEN);
LLSolve.Append(StepS1);
if (StepS2 != Stp::NONE) LLSolve.Append(StepS2);
// LLSolve.Append(Stp::PARENTHESIS_CLOSE_1_REP);
}
AUFStep = ULL2;
break;
}
}
if (LL_Found) break; // Release for loop
}
}
else
{
for (const auto yLL : Algorithm::yTurns) // y turn before algorithm
{
for (const auto ULL : Algorithm::UMovs) // U movement after algorithm (AUF)
{
Cube CubeLL = CubeBase;
CubeLL.ApplyStep(yLL);
Spin1 = CubeLL.GetSpin();
CubeLL.ApplyAlgorithm(Alg);
Spin2 = CubeLL.GetSpin();
if (Spin1 != Spin2)
{
Cube::GetSpinsSteps(Spin2, Spin1, StepS1, StepS2);
if (StepS1 != Stp::NONE) CubeLL.ApplyStep(StepS1);
if (StepS2 != Stp::NONE) CubeLL.ApplyStep(StepS2);
}
else StepS1 = StepS2 = Stp::NONE;
CubeLL.ApplyStep(ULL);
LL_Found = CubeLL.IsSolved();
if (LL_Found)
{
LLCase = AlgSet.GetCaseName(LL_Index);
if (yLL != Stp::NONE)
{
// LLSolve.Append(Stp::PARENTHESIS_OPEN);
LLSolve.Append(yLL);
// LLSolve.Append(Stp::PARENTHESIS_CLOSE_1_REP);
}
LLSolve.Append(Alg);
if (Cube::GetUpSliceLayer(Spin1) != Cube::GetUpSliceLayer(Spin2))
{
// LLSolve.Append(Stp::PARENTHESIS_OPEN);
LLSolve.Append(StepS1);
if (StepS2 != Stp::NONE) LLSolve.Append(StepS2);
// LLSolve.Append(Stp::PARENTHESIS_CLOSE_1_REP);
}
AUFStep = ULL;
break;
}
}
if (LL_Found) break; // Release for loop
}
}
if (LL_Found) break; // Release for loop
}
return LL_Found;
}
// Search an algorithm from a collection (CMLL or COLL) to solve the last layer corners
bool Method::CornersLL(Algorithm& LLSolve, std::string &LLCase, Stp& AUFStep, const Collection& AlgSet,
const Plc Pol, const Metrics Met, const Cube& CubeBase, const bool EdgesOriented)
{
LLSolve.Clear();
LLCase.clear();
AUFStep = Stp::NONE;
// Allowed algsets
if (AlgSet.GetName() != "CMLL" && AlgSet.GetName() != "COLL" && AlgSet.GetName() != "NCLL" &&
AlgSet.GetName() != "NCOLL" && AlgSet.GetName() != "TNCLL") return false;
const Lyr UpLayer = Cube::GetUpSliceLayer(CubeBase.GetSpin()),
MidLayer = Cube::AdjacentLayer(UpLayer);
Pgr UpLayerCorners, UpLayerEdges, DownLayerCorners;
switch(UpLayer)
{
case Lyr::U: UpLayerCorners = Pgr::CORNERS_U; UpLayerEdges = Pgr::CROSS_U; DownLayerCorners = Pgr::CORNERS_D; break;
case Lyr::D: UpLayerCorners = Pgr::CORNERS_D; UpLayerEdges = Pgr::CROSS_D; DownLayerCorners = Pgr::CORNERS_U; break;
case Lyr::F: UpLayerCorners = Pgr::CORNERS_F; UpLayerEdges = Pgr::CROSS_F; DownLayerCorners = Pgr::CORNERS_B; break;
case Lyr::B: UpLayerCorners = Pgr::CORNERS_B; UpLayerEdges = Pgr::CROSS_B; DownLayerCorners = Pgr::CORNERS_F; break;
case Lyr::R: UpLayerCorners = Pgr::CORNERS_R; UpLayerEdges = Pgr::CROSS_R; DownLayerCorners = Pgr::CORNERS_L; break;
case Lyr::L: UpLayerCorners = Pgr::CORNERS_L; UpLayerEdges = Pgr::CROSS_L; DownLayerCorners = Pgr::CORNERS_R; break;
default: return false;
}
bool LL_Found = false;
Spn Spin1, Spin2; // Cube spins before and after applying algorithm
Stp StepS1, StepS2; // Steps to return cube to the start spin
for (uint LL_Index = 0u; LL_Index < AlgSet.GetCasesNumber(); LL_Index++)
{
Algorithm Alg = AlgSet.GetAlgorithm(LL_Index, Pol, Met);
for (const auto ULL1: Algorithm::UMovs) // U movement before algorithm
{
for (const auto ULL2: Algorithm::UMovs) // U movement after algorithm (AUF)
{
Cube CubeLL = CubeBase;
CubeLL.ApplyStep(ULL1);
Spin1 = CubeLL.GetSpin();
CubeLL.ApplyAlgorithm(Alg);
Spin2 = CubeLL.GetSpin();
if (Spin1 != Spin2)
{
Cube::GetSpinsSteps(Spin2, Spin1, StepS1, StepS2);
if (StepS1 != Stp::NONE) CubeLL.ApplyStep(StepS1);
if (StepS2 != Stp::NONE) CubeLL.ApplyStep(StepS2);
}
else StepS1 = StepS2 = Stp::NONE;
CubeLL.ApplyStep(ULL2);
LL_Found = CubeLL.IsSolved(DownLayerCorners) && CubeLL.IsSolved(MidLayer) && CubeLL.IsSolved(UpLayerCorners) &&
CubeLL.IsSolved(Cube::FromAbsPosition(App::DR, CubeLL.GetSpin())) &&
CubeLL.IsSolved(Cube::FromAbsPosition(App::DL, CubeLL.GetSpin()));
if (LL_Found && EdgesOriented) LL_Found = CubeLL.CheckOrientation(UpLayerEdges);
if (LL_Found)
{
LLCase = AlgSet.GetCaseName(LL_Index);
if (ULL1 != Stp::NONE)
{
// LLSolve.Append(Stp::PARENTHESIS_OPEN);
LLSolve.Append(ULL1);
// LLSolve.Append(Stp::PARENTHESIS_CLOSE_1_REP);
}
LLSolve.Append(Alg);
if (Cube::GetUpSliceLayer(Spin1) != Cube::GetUpSliceLayer(Spin2))
{
// LLSolve.Append(Stp::PARENTHESIS_OPEN);
LLSolve.Append(StepS1);
if (StepS2 != Stp::NONE) LLSolve.Append(StepS2);
// LLSolve.Append(Stp::PARENTHESIS_CLOSE_1_REP);
}
AUFStep = ULL2;
break;
}
}
if (LL_Found) break; // Release for loop
}
if (LL_Found) break; // Release for loop
}
return LL_Found;
}
// Common functions for methods
// Set spins for search
void Method::SetSearchSpins(const std::vector<Spn>& SS)
{
SearchSpins.clear();
if (SS.empty()) for (int s = 0; s < 24; s++) SearchSpins.push_back(static_cast<Spn>(s));
else for (const auto s : SS) SearchSpins.push_back(s);
}
// Get the best solve report
std::string Method::GetBestReport(const bool Cancellations) const
{
float M, min_M = 0.0f;
uint Bestn = 0u;
Spn BestSpin = Spn::Default;
for (const auto spin : SearchSpins)
{
const int sp = static_cast<int>(spin);
if (!CheckSolveConsistency(spin)) continue;
for (uint n = 0u; n < Inspections[sp].size(); n++)
{
if (!IsSolved(spin, n)) continue;
if (Cancellations) M = GetMetricCancellations(spin, n);
else M = GetMetricSolve(spin, n);
if (min_M == 0.0f || M < min_M)
{
min_M = M;
BestSpin = spin;
Bestn = n;
}
}
}
if (min_M == 0.0f) return "No solves!\n";
if (Cancellations)
{
Algorithm C = GetCancellations(BestSpin, Bestn);
return GetReport(BestSpin, Bestn) + "\nCancellations (" + Algorithm::GetMetricValue(C.GetMetric(Metric)) + " " +
Algorithm::GetMetricString(Metric) + "): " + C.ToString() + "\n";
}
return GetReport(BestSpin, Bestn);
}
// Static functions for check structures solved in the cube
// Check if the CFOP first cross is built for given cross layer
bool Method::IsCrossBuilt(const Cube& C, const Lyr CrossLayer)
{
Cube CAux = C;
switch (CrossLayer)
{
case Lyr::U: CAux.SetSpin(Spn::DF); break;
case Lyr::D: CAux.SetSpin(Spn::UF); break;
case Lyr::F: CAux.SetSpin(Spn::BU); break;
case Lyr::B: CAux.SetSpin(Spn::FU); break;
case Lyr::R: CAux.SetSpin(Spn::LU); break;
case Lyr::L: CAux.SetSpin(Spn::RU); break;
default: return false;
}
return IsCrossBuilt(CAux);
}
// Check if the CFOP first cross is built for given spin
bool Method::IsCrossBuilt(const Cube& C, const Spn spin)
{
Cube CAux = C;
CAux.SetSpin(spin);
return IsCrossBuilt(CAux);
}
// Check if the CFOP first cross is built
bool Method::IsCrossBuilt(const Cube& C)
{
switch (Cube::GetDownSliceLayer(C.GetSpin()))
{
case Lyr::U: return C.IsSolved(Pgr::CROSS_U);
case Lyr::D: return C.IsSolved(Pgr::CROSS_D);
case Lyr::F: return C.IsSolved(Pgr::CROSS_F);
case Lyr::B: return C.IsSolved(Pgr::CROSS_B);
case Lyr::R: return C.IsSolved(Pgr::CROSS_R);
case Lyr::L: return C.IsSolved(Pgr::CROSS_L);
default: return false;
}
}
// Check if the CFOP first XCross is built for given cross layer (any XCross)
bool Method::IsXCrossBuilt(const Cube& C, const Lyr CrossLayer)
{
Cube CAux = C;
switch (CrossLayer)
{
case Lyr::U: CAux.SetSpin(Spn::DF); break;
case Lyr::D: CAux.SetSpin(Spn::UF); break;
case Lyr::F: CAux.SetSpin(Spn::BU); break;
case Lyr::B: CAux.SetSpin(Spn::FU); break;
case Lyr::R: CAux.SetSpin(Spn::LU); break;
case Lyr::L: CAux.SetSpin(Spn::RU); break;
default: return false;
}
return IsXCrossBuilt(CAux);
}
// Check if the CFOP first XCross is built for given spin (any XCross)
bool Method::IsXCrossBuilt(const Cube& C, const Spn spin)
{
Cube CAux = C;
CAux.SetSpin(spin);
return IsXCrossBuilt(CAux);
}
// Check if the CFOP first XCross is built
bool Method::IsXCrossBuilt(const Cube& C)
{
switch (Cube::GetDownSliceLayer(C.GetSpin()))
{
case Lyr::U: return C.IsSolved(Pgr::CROSS_U) &&
(C.IsSolved(Pgr::F2L_U_UFR) || C.IsSolved(Pgr::F2L_U_UFL) ||
C.IsSolved(Pgr::F2L_U_UBR) || C.IsSolved(Pgr::F2L_U_UBL));
case Lyr::D: return C.IsSolved(Pgr::CROSS_D) &&
(C.IsSolved(Pgr::F2L_D_DFR) || C.IsSolved(Pgr::F2L_D_DFL) ||
C.IsSolved(Pgr::F2L_D_DBR) || C.IsSolved(Pgr::F2L_D_DBL));
case Lyr::F: return C.IsSolved(Pgr::CROSS_F) &&
(C.IsSolved(Pgr::F2L_F_UFR) || C.IsSolved(Pgr::F2L_F_UFL) ||
C.IsSolved(Pgr::F2L_F_DFR) || C.IsSolved(Pgr::F2L_F_DFL));
case Lyr::B: return C.IsSolved(Pgr::CROSS_B) &&
(C.IsSolved(Pgr::F2L_B_UBR) || C.IsSolved(Pgr::F2L_B_UBL) ||
C.IsSolved(Pgr::F2L_B_DBR) || C.IsSolved(Pgr::F2L_B_DBL));
case Lyr::R: return C.IsSolved(Pgr::CROSS_R) &&
(C.IsSolved(Pgr::F2L_R_UFR) || C.IsSolved(Pgr::F2L_R_UBR) ||
C.IsSolved(Pgr::F2L_R_DFR) || C.IsSolved(Pgr::F2L_R_DBR));
case Lyr::L: return C.IsSolved(Pgr::CROSS_L) &&
(C.IsSolved(Pgr::F2L_L_UFL) || C.IsSolved(Pgr::F2L_L_UBL) ||
C.IsSolved(Pgr::F2L_L_DFL) || C.IsSolved(Pgr::F2L_L_DBL));
default: return false;
}
}
// Check if first two layers are built for given cross layer (two layers)
bool Method::IsF2LBuilt(const Cube& C, const Lyr CrossLayer)
{
Cube CAux = C;
switch (CrossLayer)
{
case Lyr::U: CAux.SetSpin(Spn::DF); break;
case Lyr::D: CAux.SetSpin(Spn::UF); break;
case Lyr::F: CAux.SetSpin(Spn::BU); break;
case Lyr::B: CAux.SetSpin(Spn::FU); break;
case Lyr::R: CAux.SetSpin(Spn::LU); break;
case Lyr::L: CAux.SetSpin(Spn::RU); break;
default: return false;
}
return IsF2LBuilt(CAux);
}
// Check if first two layers are built for given spin (two layers)
bool Method::IsF2LBuilt(const Cube& C, const Spn spin)
{
Cube CAux = C;
CAux.SetSpin(spin);
return IsF2LBuilt(CAux);
}
// Check if F2L are built (two layers)
bool Method::IsF2LBuilt(const Cube& C)
{
switch (Cube::GetDownSliceLayer(C.GetSpin()))
{
case Lyr::U: return C.IsSolved(Pgr::F2L_U);
case Lyr::D: return C.IsSolved(Pgr::F2L_D);
case Lyr::F: return C.IsSolved(Pgr::F2L_F);
case Lyr::B: return C.IsSolved(Pgr::F2L_B);
case Lyr::R: return C.IsSolved(Pgr::F2L_R);
case Lyr::L: return C.IsSolved(Pgr::F2L_L);
default: return false;
}
}
// Check if F2L pairs are built for given cross layer (no cross check)
bool Method::IsF2LPairsBuilt(const Cube& C, const Lyr CrossLayer)
{
Cube CAux = C;
switch (CrossLayer)
{
case Lyr::U: CAux.SetSpin(Spn::DF); break;
case Lyr::D: CAux.SetSpin(Spn::UF); break;
case Lyr::F: CAux.SetSpin(Spn::BU); break;
case Lyr::B: CAux.SetSpin(Spn::FU); break;
case Lyr::R: CAux.SetSpin(Spn::LU); break;
case Lyr::L: CAux.SetSpin(Spn::RU); break;
default: return false;
}
return IsF2LPairsBuilt(CAux);
}
// Check if F2L pairs are built for given spin (no cross check)
bool Method::IsF2LPairsBuilt(const Cube& C, const Spn spin)
{
Cube CAux = C;
CAux.SetSpin(spin);
return IsF2LPairsBuilt(CAux);
}
// Check if all four F2L pairs are built (no cross check)
bool Method::IsF2LPairsBuilt(const Cube& C)
{
switch (Cube::GetDownSliceLayer(C.GetSpin()))
{
case Lyr::U: return C.IsSolved(Pgr::F2L_U_UFR) && C.IsSolved(Pgr::F2L_U_UFL) &&
C.IsSolved(Pgr::F2L_U_UBR) && C.IsSolved(Pgr::F2L_U_UBL);
case Lyr::D: return C.IsSolved(Pgr::F2L_D_DFR) && C.IsSolved(Pgr::F2L_D_DFL) &&
C.IsSolved(Pgr::F2L_D_DBR) && C.IsSolved(Pgr::F2L_D_DBL);
case Lyr::F: return C.IsSolved(Pgr::F2L_F_UFR) && C.IsSolved(Pgr::F2L_F_UFL) &&
C.IsSolved(Pgr::F2L_F_DFR) && C.IsSolved(Pgr::F2L_F_DFL);
case Lyr::B: return C.IsSolved(Pgr::F2L_B_UBR) && C.IsSolved(Pgr::F2L_B_UBL) &&
C.IsSolved(Pgr::F2L_B_DBR) && C.IsSolved(Pgr::F2L_B_DBL);
case Lyr::R: return C.IsSolved(Pgr::F2L_R_UFR) && C.IsSolved(Pgr::F2L_R_UBR) &&
C.IsSolved(Pgr::F2L_R_DFR) && C.IsSolved(Pgr::F2L_R_DBR);
case Lyr::L: return C.IsSolved(Pgr::F2L_L_UFL) && C.IsSolved(Pgr::F2L_L_UBL) &&
C.IsSolved(Pgr::F2L_L_DFL) && C.IsSolved(Pgr::F2L_L_DBL);
default: return false;
}
}
// Get if the given F2L pair is adjacent (the corner next to the edge), orientation is not checked
bool Method::IsF2LAdjacent(const Pgr F2L, const Cube& C)
{
std::vector<Pcp> F2L_List;
Cube::AddToPositionsList(F2L, F2L_List);
if (F2L_List.size() != 2) return false;
const Pcp F2L_Corner = C.GetPiecePosition(static_cast<Pce>(F2L_List[0])),
F2L_Edge = C.GetPiecePosition(static_cast<Pce>(F2L_List[1]));
switch (F2L_Corner)
{
case Pcp::UFR: return F2L_Edge == Pcp::UF || F2L_Edge == Pcp::UR || F2L_Edge == Pcp::FR;
case Pcp::UFL: return F2L_Edge == Pcp::UF || F2L_Edge == Pcp::UL || F2L_Edge == Pcp::FL;
case Pcp::UBR: return F2L_Edge == Pcp::UB || F2L_Edge == Pcp::UR || F2L_Edge == Pcp::BR;
case Pcp::UBL: return F2L_Edge == Pcp::UB || F2L_Edge == Pcp::UL || F2L_Edge == Pcp::BL;
case Pcp::DFR: return F2L_Edge == Pcp::DF || F2L_Edge == Pcp::DR || F2L_Edge == Pcp::FR;
case Pcp::DFL: return F2L_Edge == Pcp::DF || F2L_Edge == Pcp::DL || F2L_Edge == Pcp::FL;
case Pcp::DBR: return F2L_Edge == Pcp::DB || F2L_Edge == Pcp::DR || F2L_Edge == Pcp::BR;
case Pcp::DBL: return F2L_Edge == Pcp::DB || F2L_Edge == Pcp::DL || F2L_Edge == Pcp::BL;
default: return false;
}
}
// Check if the common colors for F2L pair are in the same face
bool Method::IsF2LOriented(const Pgr F2L, const Cube& C)
{
std::vector<Pcp> F2L_List;
Cube::AddToPositionsList(F2L, F2L_List);
if (F2L_List.size() != 2) return false;
const Pcp F2L_Corner = C.GetPiecePosition(static_cast<Pce>(F2L_List[0])),
F2L_Edge = C.GetPiecePosition(static_cast<Pce>(F2L_List[1]));
Sps Edge_Sticker_1, Edge_Sticker_2, Corner_Sticker_1, Corner_Sticker_2, Corner_Sticker_3;
switch (F2L_Edge)
{
case Pcp::UF: Edge_Sticker_1 = Sps::UF_U; Edge_Sticker_2 = Sps::UF_F; break;
case Pcp::UB: Edge_Sticker_1 = Sps::UB_U; Edge_Sticker_2 = Sps::UB_B; break;
case Pcp::UR: Edge_Sticker_1 = Sps::UR_U; Edge_Sticker_2 = Sps::UR_R; break;
case Pcp::UL: Edge_Sticker_1 = Sps::UL_U; Edge_Sticker_2 = Sps::UL_L; break;
case Pcp::DF: Edge_Sticker_1 = Sps::DF_D; Edge_Sticker_2 = Sps::DF_F; break;
case Pcp::DB: Edge_Sticker_1 = Sps::DB_D; Edge_Sticker_2 = Sps::DB_B; break;
case Pcp::DR: Edge_Sticker_1 = Sps::DR_D; Edge_Sticker_2 = Sps::DR_R; break;
case Pcp::DL: Edge_Sticker_1 = Sps::DL_D; Edge_Sticker_2 = Sps::DL_L; break;
case Pcp::FR: Edge_Sticker_1 = Sps::FR_F; Edge_Sticker_2 = Sps::FR_R; break;
case Pcp::FL: Edge_Sticker_1 = Sps::FL_F; Edge_Sticker_2 = Sps::FL_L; break;
case Pcp::BR: Edge_Sticker_1 = Sps::BR_B; Edge_Sticker_2 = Sps::BR_R; break;
case Pcp::BL: Edge_Sticker_1 = Sps::BL_B; Edge_Sticker_2 = Sps::BL_L; break;
default: return false;
}
switch (F2L_Corner)
{
case Pcp::UFR: Corner_Sticker_1 = Sps::UFR_U; Corner_Sticker_2 = Sps::UFR_F; Corner_Sticker_3 = Sps::UFR_R; break;
case Pcp::UFL: Corner_Sticker_1 = Sps::UFL_U; Corner_Sticker_2 = Sps::UFL_F; Corner_Sticker_3 = Sps::UFL_L; break;
case Pcp::UBR: Corner_Sticker_1 = Sps::UBR_U; Corner_Sticker_2 = Sps::UBR_B; Corner_Sticker_3 = Sps::UBR_R; break;
case Pcp::UBL: Corner_Sticker_1 = Sps::UBL_U; Corner_Sticker_2 = Sps::UBL_B; Corner_Sticker_3 = Sps::UBL_L; break;
case Pcp::DFR: Corner_Sticker_1 = Sps::DFR_D; Corner_Sticker_2 = Sps::DFR_F; Corner_Sticker_3 = Sps::DFR_R; break;
case Pcp::DFL: Corner_Sticker_1 = Sps::DFL_D; Corner_Sticker_2 = Sps::DFL_F; Corner_Sticker_3 = Sps::DFL_L; break;
case Pcp::DBR: Corner_Sticker_1 = Sps::DBR_D; Corner_Sticker_2 = Sps::DBR_B; Corner_Sticker_3 = Sps::DBR_R; break;
case Pcp::DBL: Corner_Sticker_1 = Sps::DBL_D; Corner_Sticker_2 = Sps::DBL_B; Corner_Sticker_3 = Sps::DBL_L; break;
default: return false;
}
Fce ES1 = C.GetFace(Edge_Sticker_1), ES2 = C.GetFace(Edge_Sticker_2),
CS1 = C.GetFace(Corner_Sticker_1), CS2 = C.GetFace(Corner_Sticker_2), CS3 = C.GetFace(Corner_Sticker_3);
return ((ES1 == CS1) && (ES2 == CS2)) || ((ES1 == CS1) && (ES2 == CS1)) || ((ES1 == CS1) && (ES2 == CS3)) ||
((ES1 == CS3) && (ES2 == CS1)) || ((ES1 == CS2) && (ES2 == CS3)) || ((ES1 == CS3) && (ES2 == CS2));
}
// Check if the left Roux/Nautilus block is built (first block)
bool Method::IsRouxFBBuilt(const Cube& C)
{
// Nautilus cube with desired spin
switch (C.GetSpin())
{
case Spn::UF: return C.IsSolved(Pgr::UF_B1);
case Spn::UB: return C.IsSolved(Pgr::UB_B1);
case Spn::UR: return C.IsSolved(Pgr::UR_B1);
case Spn::UL: return C.IsSolved(Pgr::UL_B1);
case Spn::DF: return C.IsSolved(Pgr::DF_B1);
case Spn::DB: return C.IsSolved(Pgr::DB_B1);
case Spn::DR: return C.IsSolved(Pgr::DR_B1);
case Spn::DL: return C.IsSolved(Pgr::DL_B1);
case Spn::FU: return C.IsSolved(Pgr::FU_B1);
case Spn::FD: return C.IsSolved(Pgr::FD_B1);
case Spn::FR: return C.IsSolved(Pgr::FR_B1);
case Spn::FL: return C.IsSolved(Pgr::FL_B1);
case Spn::BU: return C.IsSolved(Pgr::BU_B1);
case Spn::BD: return C.IsSolved(Pgr::BD_B1);
case Spn::BR: return C.IsSolved(Pgr::BR_B1);
case Spn::BL: return C.IsSolved(Pgr::BL_B1);
case Spn::RU: return C.IsSolved(Pgr::RU_B1);
case Spn::RD: return C.IsSolved(Pgr::RD_B1);
case Spn::RF: return C.IsSolved(Pgr::RF_B1);
case Spn::RB: return C.IsSolved(Pgr::RB_B1);
case Spn::LU: return C.IsSolved(Pgr::LU_B1);
case Spn::LD: return C.IsSolved(Pgr::LD_B1);
case Spn::LF: return C.IsSolved(Pgr::LF_B1);
case Spn::LB: return C.IsSolved(Pgr::LB_B1);
default: return false; // Should not happend
}
}
// Check if the first Roux/Nautilus block is built with the given spin
bool Method::IsRouxFBBuilt(const Cube& C, const Spn S)
{
Cube CRoux = C;
CRoux.SetSpin(S);
return IsRouxFBBuilt(CRoux);
}
// Check if the first Roux square block is built with the given spin
bool Method::IsRouxFBSquareBuilt(const Cube& C)
{
// Roux cube with desired spin
switch (C.GetSpin())
{
case Spn::UF: return C.IsSolved(Pgr::UF_B1S2);
case Spn::UB: return C.IsSolved(Pgr::UB_B1S2);
case Spn::UR: return C.IsSolved(Pgr::UR_B1S2);
case Spn::UL: return C.IsSolved(Pgr::UL_B1S2);
case Spn::DF: return C.IsSolved(Pgr::DF_B1S2);
case Spn::DB: return C.IsSolved(Pgr::DB_B1S2);
case Spn::DR: return C.IsSolved(Pgr::DR_B1S2);
case Spn::DL: return C.IsSolved(Pgr::DL_B1S2);
case Spn::FU: return C.IsSolved(Pgr::FU_B1S2);
case Spn::FD: return C.IsSolved(Pgr::FD_B1S2);
case Spn::FR: return C.IsSolved(Pgr::FR_B1S2);
case Spn::FL: return C.IsSolved(Pgr::FL_B1S2);
case Spn::BU: return C.IsSolved(Pgr::BU_B1S2);
case Spn::BD: return C.IsSolved(Pgr::BD_B1S2);
case Spn::BR: return C.IsSolved(Pgr::BR_B1S2);
case Spn::BL: return C.IsSolved(Pgr::BL_B1S2);
case Spn::RU: return C.IsSolved(Pgr::RU_B1S2);
case Spn::RD: return C.IsSolved(Pgr::RD_B1S2);
case Spn::RF: return C.IsSolved(Pgr::RF_B1S2);
case Spn::RB: return C.IsSolved(Pgr::RB_B1S2);
case Spn::LU: return C.IsSolved(Pgr::LU_B1S2);
case Spn::LD: return C.IsSolved(Pgr::LD_B1S2);
case Spn::LF: return C.IsSolved(Pgr::LF_B1S2);
case Spn::LB: return C.IsSolved(Pgr::LB_B1S2);
default: return false; // Should not happend
}
}
// Check if the first Roux square block is built with the given spin
bool Method::IsRouxFBSquareBuilt(const Cube& C, const Spn S)
{
Cube CRoux = C;
CRoux.SetSpin(S);
return IsRouxFBSquareBuilt(CRoux);
}
// Check if the right Roux block is built (second block)
bool Method::IsRouxSBBuilt(const Cube& C)
{
// Roux cube with desired spin
switch (C.GetSpin())
{
case Spn::UF: return C.IsSolved(Pgr::UF_B2);
case Spn::UB: return C.IsSolved(Pgr::UB_B2);
case Spn::UR: return C.IsSolved(Pgr::UR_B2);
case Spn::UL: return C.IsSolved(Pgr::UL_B2);
case Spn::DF: return C.IsSolved(Pgr::DF_B2);
case Spn::DB: return C.IsSolved(Pgr::DB_B2);
case Spn::DR: return C.IsSolved(Pgr::DR_B2);
case Spn::DL: return C.IsSolved(Pgr::DL_B2);
case Spn::FU: return C.IsSolved(Pgr::FU_B2);
case Spn::FD: return C.IsSolved(Pgr::FD_B2);
case Spn::FR: return C.IsSolved(Pgr::FR_B2);
case Spn::FL: return C.IsSolved(Pgr::FL_B2);
case Spn::BU: return C.IsSolved(Pgr::BU_B2);
case Spn::BD: return C.IsSolved(Pgr::BD_B2);
case Spn::BR: return C.IsSolved(Pgr::BR_B2);
case Spn::BL: return C.IsSolved(Pgr::BL_B2);
case Spn::RU: return C.IsSolved(Pgr::RU_B2);
case Spn::RD: return C.IsSolved(Pgr::RD_B2);
case Spn::RF: return C.IsSolved(Pgr::RF_B2);
case Spn::RB: return C.IsSolved(Pgr::RB_B2);
case Spn::LU: return C.IsSolved(Pgr::LU_B2);
case Spn::LD: return C.IsSolved(Pgr::LD_B2);
case Spn::LF: return C.IsSolved(Pgr::LF_B2);
case Spn::LB: return C.IsSolved(Pgr::LB_B2);
default: return false; // Should not happend
}
}
// Check if the right Roux block is built (second block) with the given spin
bool Method::IsRouxSBBuilt(const Cube& C, const Spn S)
{
Cube CRoux = C;
CRoux.SetSpin(S);
return IsRouxSBBuilt(CRoux);
}
// Check if the left Roux block is built and an square in the right block
bool Method::IsRouxFBAndSBSquareBuilt(const Cube& C)
{
switch (C.GetSpin())
{
case Spn::UF: return C.IsSolved(Pgr::UF_B1) &&
(C.IsSolved(Pgr::UF_B2S1) || C.IsSolved(Pgr::UF_B2S2));
case Spn::UB: return C.IsSolved(Pgr::UB_B1) &&
(C.IsSolved(Pgr::UB_B2S1) || C.IsSolved(Pgr::UB_B2S2));
case Spn::UR: return C.IsSolved(Pgr::UR_B1) &&
(C.IsSolved(Pgr::UR_B2S1) || C.IsSolved(Pgr::UR_B2S2));
case Spn::UL: return C.IsSolved(Pgr::UL_B1) &&
(C.IsSolved(Pgr::UL_B2S1) || C.IsSolved(Pgr::UL_B2S2));
case Spn::DF: return C.IsSolved(Pgr::DF_B1) &&
(C.IsSolved(Pgr::DF_B2S1) || C.IsSolved(Pgr::DF_B2S2));
case Spn::DB: return C.IsSolved(Pgr::DB_B1) &&
(C.IsSolved(Pgr::DB_B2S1) || C.IsSolved(Pgr::DB_B2S2));
case Spn::DR: return C.IsSolved(Pgr::DR_B1) &&
(C.IsSolved(Pgr::DR_B2S1) || C.IsSolved(Pgr::DR_B2S2));
case Spn::DL: return C.IsSolved(Pgr::DL_B1) &&
(C.IsSolved(Pgr::DL_B2S1) || C.IsSolved(Pgr::DL_B2S2));
case Spn::FU: return C.IsSolved(Pgr::FU_B1) &&
(C.IsSolved(Pgr::FU_B2S1) || C.IsSolved(Pgr::FU_B2S2));
case Spn::FD: return C.IsSolved(Pgr::FD_B1) &&
(C.IsSolved(Pgr::FD_B2S1) || C.IsSolved(Pgr::FD_B2S2));
case Spn::FR: return C.IsSolved(Pgr::FR_B1) &&
(C.IsSolved(Pgr::FR_B2S1) || C.IsSolved(Pgr::FR_B2S2));
case Spn::FL: return C.IsSolved(Pgr::FL_B1) &&
(C.IsSolved(Pgr::FL_B2S1) || C.IsSolved(Pgr::FL_B2S2));
case Spn::BU: return C.IsSolved(Pgr::BU_B1) &&
(C.IsSolved(Pgr::BU_B2S1) || C.IsSolved(Pgr::BU_B2S2));
case Spn::BD: return C.IsSolved(Pgr::BD_B1) &&
(C.IsSolved(Pgr::BD_B2S1) || C.IsSolved(Pgr::BD_B2S2));
case Spn::BR: return C.IsSolved(Pgr::BR_B1) &&
(C.IsSolved(Pgr::BR_B2S1) || C.IsSolved(Pgr::BR_B2S2));
case Spn::BL: return C.IsSolved(Pgr::BL_B1) &&
(C.IsSolved(Pgr::BL_B2S1) || C.IsSolved(Pgr::BL_B2S2));
case Spn::RU: return C.IsSolved(Pgr::RU_B1) &&
(C.IsSolved(Pgr::RU_B2S1) || C.IsSolved(Pgr::RU_B2S2));
case Spn::RD: return C.IsSolved(Pgr::RD_B1) &&
(C.IsSolved(Pgr::RD_B2S1) || C.IsSolved(Pgr::RD_B2S2));
case Spn::RF: return C.IsSolved(Pgr::RF_B1) &&
(C.IsSolved(Pgr::RF_B2S1) || C.IsSolved(Pgr::RF_B2S2));
case Spn::RB: return C.IsSolved(Pgr::RB_B1) &&
(C.IsSolved(Pgr::RB_B2S1) || C.IsSolved(Pgr::RB_B2S2));
case Spn::LU: return C.IsSolved(Pgr::LU_B1) &&
(C.IsSolved(Pgr::LU_B2S1) || C.IsSolved(Pgr::LU_B2S2));
case Spn::LD: return C.IsSolved(Pgr::LD_B1) &&
(C.IsSolved(Pgr::LD_B2S1) || C.IsSolved(Pgr::LD_B2S2));
case Spn::LF: return C.IsSolved(Pgr::LF_B1) &&
(C.IsSolved(Pgr::LF_B2S1) || C.IsSolved(Pgr::LF_B2S2));
case Spn::LB: return C.IsSolved(Pgr::LB_B1) &&
(C.IsSolved(Pgr::LB_B2S1) || C.IsSolved(Pgr::LB_B2S2));
default: return false; // Should not happend
}
}
// Check if the left Roux block is built and an square in the right block with the given spin
bool Method::IsRouxFBAndSBSquareBuilt(const Cube& C, const Spn S)
{
Cube CRoux = C;
CRoux.SetSpin(S);
return IsRouxFBAndSBSquareBuilt(CRoux);
}
// Check if the upper layer corners (CMLL) are built
bool Method::IsCMLLBuilt(const Cube& C)
{
switch (C.GetSpin())
{
case Spn::UF:
case Spn::UB:
case Spn::UR:
case Spn::UL: return C.IsSolved(Pgr::CORNERS_U);
case Spn::DF:
case Spn::DB:
case Spn::DR:
case Spn::DL: return C.IsSolved(Pgr::CORNERS_D);
case Spn::FU:
case Spn::FD:
case Spn::FR:
case Spn::FL: return C.IsSolved(Pgr::CORNERS_F);
case Spn::BU:
case Spn::BD:
case Spn::BR:
case Spn::BL: return C.IsSolved(Pgr::CORNERS_B);
case Spn::RU:
case Spn::RD:
case Spn::RF:
case Spn::RB: return C.IsSolved(Pgr::CORNERS_R);
case Spn::LU:
case Spn::LD:
case Spn::LF:
case Spn::LB: return C.IsSolved(Pgr::CORNERS_L);
default: return false; // Should not happend
}
}
// Check if the upper layer corners (CMLL) are built
bool Method::IsCMLLBuilt(const Cube& C, const Spn S)
{
Cube CRoux = C;
CRoux.SetSpin(S);
return IsCMLLBuilt(CRoux);
}
// Check if the last six edges are oriented in roux method
bool Method::IsRouxL6EOriented(const Cube& c)
{
return AreRouxBlocksBuilt(c) &&
c.IsFaceOriented2(Cube::GetUpSliceLayer(c.GetSpin())) &&
c.IsFaceOriented2(Cube::GetDownSliceLayer(c.GetSpin()));
}
// Check if the last six edges are oriented in roux method with the given spin
bool Method::IsRouxL6EOriented(const Cube& C, const Spn S)
{
Cube CRoux = C;
CRoux.SetSpin(S);
return IsRouxL6EOriented(CRoux);
}
// Check if the last six edges oriented and two edges solved in roux method
bool Method::IsRouxL6EO2E(const Cube& c)
{
return c.IsSolved(Cube::GetLeftSliceLayer(c.GetSpin())) && c.IsSolved(Cube::GetRightSliceLayer(c.GetSpin())) &&
c.IsFaceOriented2(Cube::GetUpSliceLayer(c.GetSpin())) && c.IsFaceOriented2(Cube::GetDownSliceLayer(c.GetSpin()));
}
// Check if the last six edges oriented and two edges solved in roux method with the given spin
bool Method::IsRouxL6EO2E(const Cube& C, const Spn S)
{
Cube CRoux = C;
CRoux.SetSpin(S);
return IsRouxL6EO2E(CRoux);
}
// Check if Petrus block is built
bool Method::IsPetrusBlockBuilt(const Cube& C)
{
switch (C.GetSpin())
{
case Spn::UF:
case Spn::FR:
case Spn::RU: return C.IsSolved(Pgr::PETRUS_DBL);
case Spn::UB:
case Spn::BL:
case Spn::LU: return C.IsSolved(Pgr::PETRUS_DFR);
case Spn::UR:
case Spn::BU:
case Spn::RB: return C.IsSolved(Pgr::PETRUS_DFL);
case Spn::UL:
case Spn::FU:
case Spn::LF: return C.IsSolved(Pgr::PETRUS_DBR);
case Spn::DF:
case Spn::FL:
case Spn::LD: return C.IsSolved(Pgr::PETRUS_UBR);
case Spn::DB:
case Spn::BR:
case Spn::RD: return C.IsSolved(Pgr::PETRUS_UFL);
case Spn::DR:
case Spn::FD:
case Spn::RF: return C.IsSolved(Pgr::PETRUS_UBL);
case Spn::DL:
case Spn::BD:
case Spn::LB: return C.IsSolved(Pgr::PETRUS_UFR);
default: return false; // Should not happend
}
}
// Check if Petrus block is built for given spin
bool Method::IsPetrusBlockBuilt(const Cube& C, const Spn S)
{
Cube CPetrus = C;
CPetrus.SetSpin(S);
return IsPetrusBlockBuilt(CPetrus);
}
// Check if Petrus expanded block is built
bool Method::IsPetrusExpandedBlockBuilt(const Cube& C)
{
switch (C.GetSpin())
{
case Spn::UF: return C.IsSolved(Pgr::PETRUS_DBL_Z);
case Spn::UB: return C.IsSolved(Pgr::PETRUS_DFR_Z);
case Spn::UR: return C.IsSolved(Pgr::PETRUS_DFL_X);
case Spn::UL: return C.IsSolved(Pgr::PETRUS_DBR_X);
case Spn::DF: return C.IsSolved(Pgr::PETRUS_UBR_Z);
case Spn::DB: return C.IsSolved(Pgr::PETRUS_UFL_Z);