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08a8ebc7
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2023 Leszek Koltunski //
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// //
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// This file is part of Magic Cube. //
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// //
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// Magic Cube is proprietary software licensed under an EULA which you should have received //
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// along with the code. If not, check https://distorted.org/magic/License-Magic-Cube.html //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.objectlib.tablebases;
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import android.content.res.Resources;
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import org.distorted.library.type.Static3D;
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import org.distorted.objectlib.objects.TwistyCuboid;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public class TablebasesCuboid232 extends TablebasesAbstract
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{
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971a184e
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Leszek Koltunski
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private static final int[][] CORNER_MAP = new int[][]
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{
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{0,4,7,1,2,3,5,6},
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{2,0,1,6,3,4,7,5},
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{7,1,0,4,5,6,2,3},
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{1,6,2,0,7,5,3,4},
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{4,3,5,7,0,2,6,1},
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{3,2,6,5,4,0,1,7},
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{5,7,4,3,6,1,0,2},
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{6,5,3,2,1,7,4,0}
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};
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///////////////////////////////////////////////////////////////////////////////////////////////////
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08a8ebc7
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Leszek Koltunski
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public TablebasesCuboid232()
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{
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super();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public TablebasesCuboid232(Resources res)
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{
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971a184e
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Leszek Koltunski
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super(res,org.distorted.objectlib.R.raw.cu_232_tablebase);
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08a8ebc7
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Leszek Koltunski
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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int[][] getBasicAngles()
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{
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int[] tmp2 = {2,2};
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int[] tmp4 = {4,4,4};
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return new int[][] { tmp2,tmp4,tmp2 };
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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Static3D[] getRotationAxis()
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{
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return TwistyCuboid.ROT_AXIS;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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float[][] getPosition()
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{
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return new float[][]
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{
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{ -0.5f, -1.0f, -0.5f },
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{ -0.5f, -1.0f, 0.5f },
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{ -0.5f, 1.0f, -0.5f },
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{ -0.5f, 1.0f, 0.5f },
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{ 0.5f, -1.0f, -0.5f },
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{ 0.5f, -1.0f, 0.5f },
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{ 0.5f, 1.0f, -0.5f },
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{ 0.5f, 1.0f, 0.5f },
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{ -0.5f, 0.0f, -0.5f },
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{ -0.5f, 0.0f, 0.5f },
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{ 0.5f, 0.0f, -0.5f },
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{ 0.5f, 0.0f, 0.5f },
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};
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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float[][] getCuts()
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{
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return new float[][] { {0.0f}, {-0.5f,0.5f}, {0.0f} };
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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boolean[][] getRotatable()
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{
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return new boolean[][] { {false,true},{true,false,true},{true,false} };
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// specifically for the tablebase
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// 8!*3! --> https://www.jaapsch.net/puzzles/cube223.htm
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int getSize()
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{
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return 241920;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void getCornerQuats(int[] output, int[] perm)
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{
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971a184e
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Leszek Koltunski
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for(int i=0; i<8; i++)
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output[i] = CORNER_MAP[i][perm[i]];
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08a8ebc7
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Leszek Koltunski
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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971a184e
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Leszek Koltunski
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private int[] getCornerPerm(int[] quats)
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08a8ebc7
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Leszek Koltunski
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{
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971a184e
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Leszek Koltunski
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int[] output = new int[8];
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08a8ebc7
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Leszek Koltunski
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971a184e
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Leszek Koltunski
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for(int i=0; i<8; i++)
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{
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int quat = quats[i];
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for(int j=0; j<8; j++)
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{
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if( CORNER_MAP[i][j]==quat )
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{
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output[i]=j;
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break;
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}
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}
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}
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return output;
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08a8ebc7
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Leszek Koltunski
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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971a184e
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Leszek Koltunski
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private void getEdgeQuats(int[] output, int[] perm)
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08a8ebc7
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Leszek Koltunski
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{
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971a184e
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Leszek Koltunski
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switch(perm[0])
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{
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case 0: output[8] = 0; break;
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case 2: output[8] = 5; break;
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case 3: output[8] = 3; break;
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default: android.util.Log.e("D", "getEdgeQuats ERROR1");
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}
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output[9] = 0;
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switch(perm[2])
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{
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case 0: output[10] = 5; break;
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case 2: output[10] = 0; break;
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case 3: output[10] = 1; break;
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default: android.util.Log.e("D", "getEdgeQuats ERROR2");
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}
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switch(perm[3])
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{
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case 0: output[11] = 3; break;
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case 2: output[11] = 1; break;
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case 3: output[11] = 0; break;
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default: android.util.Log.e("D", "getEdgeQuats ERROR3");
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}
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08a8ebc7
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Leszek Koltunski
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private int[] getEdgePerm(int[] quats)
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{
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971a184e
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Leszek Koltunski
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int[] output = new int[4];
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switch(quats[8])
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{
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case 0: output[0] = 0; break;
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case 5: output[0] = 2; break;
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case 3: output[0] = 3; break;
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default: android.util.Log.e("D", "getEdgePerm ERROR1");
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}
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output[1] = 1;
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switch(quats[10])
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{
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case 0: output[2] = 2; break;
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case 1: output[2] = 3; break;
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case 5: output[2] = 0; break;
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default: android.util.Log.e("D", "getEdgePerm ERROR2");
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}
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switch(quats[11])
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{
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case 0: output[3] = 3; break;
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case 1: output[3] = 2; break;
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case 3: output[3] = 0; break;
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default: android.util.Log.e("D", "getEdgePerm ERROR3");
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}
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return output;
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08a8ebc7
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Leszek Koltunski
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private int[] uncollapseEdgePerm(int[] perm)
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{
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int[] ret = new int[4];
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ret[0] = perm[0];
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ret[1] = 1;
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ret[2] = perm[1];
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ret[3] = perm[2];
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if( ret[0]>=1 ) ret[0]++;
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if( ret[2]>=1 ) ret[2]++;
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if( ret[3]>=1 ) ret[3]++;
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return ret;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public int[] getQuats(int index)
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{
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int[] quats = new int[12];
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int edge_perm_num = index%6;
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int corn_perm_num = index/6;
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int[] edge_perm = new int[3];
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TablebaseHelpers.getPermutationFromNum(edge_perm,3,edge_perm_num);
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int[] corn_perm = new int[8];
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TablebaseHelpers.getPermutationFromNum(corn_perm,8,corn_perm_num);
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int[] edge_perm2 = uncollapseEdgePerm(edge_perm);
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getCornerQuats(quats,corn_perm);
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getEdgeQuats(quats,edge_perm2);
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return quats;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private int[] collapseEdgePerm(int[] perm)
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{
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int[] ret = new int[3];
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ret[0] = perm[0];
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ret[1] = perm[2];
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ret[2] = perm[3];
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if( ret[0]>1 ) ret[0]--;
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if( ret[1]>1 ) ret[1]--;
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if( ret[2]>1 ) ret[2]--;
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return ret;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public int getIndex(int[] quats)
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{
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int[] edge_perm = getEdgePerm(quats);
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int[] corn_perm = getCornerPerm(quats);
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int[] edge_perm2= collapseEdgePerm(edge_perm); // edge1 is fixed!
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int corn_perm_num = TablebaseHelpers.computePermutationNum(corn_perm);
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int edge_perm_num = TablebaseHelpers.computePermutationNum(edge_perm2);
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return edge_perm_num + 6*corn_perm_num;
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}
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}
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