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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 static org.distorted.objectlib.main.TwistyObject.SQ3;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public class TablebasesIvyCube extends TablebasesAbstract
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{
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private static final int[] mTmp = new int[6];
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private static final int[][] MAP = { {0,4,2,2,5,3,4,5,3,0,1,1},
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{1,5,3,3,4,2,5,4,2,1,0,0},
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{2,0,4,5,0,5,1,1,4,3,3,2},
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{3,1,5,4,1,4,0,0,5,2,2,3},
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{4,2,0,1,3,0,3,2,1,5,4,5},
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{5,3,1,0,2,1,2,3,0,4,5,4} };
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public TablebasesIvyCube()
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{
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super();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public TablebasesIvyCube(Resources res)
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{
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super(res,org.distorted.objectlib.R.raw.ivy_2_tablebase);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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int[][] getBasicAngles()
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{
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int[] tmp = {3,3};
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return new int[][] { tmp,tmp,tmp,tmp };
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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Static3D[] getRotationAxis()
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{
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return new Static3D[]
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{
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new Static3D( SQ3/3, SQ3/3, SQ3/3),
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new Static3D( SQ3/3, SQ3/3,-SQ3/3),
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new Static3D( SQ3/3,-SQ3/3, SQ3/3),
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new Static3D( SQ3/3,-SQ3/3,-SQ3/3)
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};
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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float[][] getPosition()
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{
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final float DIST_CORNER = 1;
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final float DIST_CENTER = 1;
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return new float[][]
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{
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{ DIST_CORNER, DIST_CORNER, DIST_CORNER },
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{-DIST_CORNER, DIST_CORNER,-DIST_CORNER },
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{-DIST_CORNER,-DIST_CORNER, DIST_CORNER },
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{ DIST_CORNER,-DIST_CORNER,-DIST_CORNER },
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{ DIST_CENTER, 0, 0 },
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{-DIST_CENTER, 0, 0 },
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{ 0, DIST_CENTER, 0 },
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{ 0,-DIST_CENTER, 0 },
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{ 0, 0, DIST_CENTER },
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{ 0, 0,-DIST_CENTER },
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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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float[] cut = { 0.0f };
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return new float[][] { cut,cut,cut,cut };
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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boolean[][] getRotatable()
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{
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boolean[] tmp1 = new boolean[] {false,true};
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boolean[] tmp2 = new boolean[] {true,false};
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return new boolean[][] { tmp1,tmp2,tmp2,tmp1 };
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// specifically for the tablebase
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// orientations of 4 corners + any even permutation of 6 centers
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int getSize()
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{
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return (3*3*3*3)*(6*5*4*3);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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int getMinScramble()
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{
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return 7;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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int[] getPruningLevels()
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{
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return null;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private int findFirst(int[] table, int value)
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{
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int len = table.length;
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for(int i=0; i<len; i++)
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if( table[i]==value ) return i;
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return -1;
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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 perm_num = index%360;
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index /= 360;
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int twist0 = index%3;
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index /= 3;
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int twist1 = index%3;
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index /= 3;
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int twist2 = index%3;
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index /= 3;
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int twist3 = index%3;
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int[] ret = new int[10];
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ret[0] = twist0==0 ? 0 : (twist0==1 ? 2:1);
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ret[1] = twist1==0 ? 0 : (twist1==1 ? 5:6);
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ret[2] = twist2==0 ? 0 : (twist2==1 ? 3:4);
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ret[3] = twist3==0 ? 0 : (twist3==1 ? 8:7);
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TablebaseHelpers.getEvenPermutationFromNum(mTmp,perm_num);
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for(int i=0; i<6; i++)
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{
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int cubitThatMoves = mTmp[i];
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ret[cubitThatMoves+4] = findFirst(MAP[cubitThatMoves],i);
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}
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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 twist0 = quats[0]==0 ? 0 : (quats[0]==1 ? 2:1);
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int twist1 = quats[1]==0 ? 0 : (quats[1]==6 ? 2:1);
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int twist2 = quats[2]==0 ? 0 : (quats[2]==4 ? 2:1);
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int twist3 = quats[3]==0 ? 0 : (quats[3]==7 ? 2:1);
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int c4 = MAP[0][quats[4]];
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int c5 = MAP[1][quats[5]];
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int c6 = MAP[2][quats[6]];
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int c7 = MAP[3][quats[7]];
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int c8 = MAP[4][quats[8]];
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int c9 = MAP[5][quats[9]];
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mTmp[c4]=0;
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mTmp[c5]=1;
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mTmp[c6]=2;
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mTmp[c7]=3;
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mTmp[c8]=4;
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mTmp[c9]=5;
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int perm_num = TablebaseHelpers.computeEvenPermutationNum(mTmp);
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return perm_num + 360*(twist0+ 3*(twist1+ 3*(twist2+ 3*twist3)));
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}
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}
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