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magiccube / src / main / java / org / distorted / objects / TwistyDino6.java @ be56193c

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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2020 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 free software: you can redistribute it and/or modify                            //
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// it under the terms of the GNU General Public License as published by                          //
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// the Free Software Foundation, either version 2 of the License, or                             //
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// (at your option) any later version.                                                           //
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//                                                                                               //
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// Magic Cube is distributed in the hope that it will be useful,                                 //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //
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// GNU General Public License for more details.                                                  //
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//                                                                                               //
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// You should have received a copy of the GNU General Public License                             //
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// along with Magic Cube.  If not, see <http://www.gnu.org/licenses/>.                           //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.objects;
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import android.content.res.Resources;
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import org.distorted.library.main.DistortedEffects;
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import org.distorted.library.main.DistortedTexture;
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import org.distorted.library.mesh.MeshSquare;
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import org.distorted.library.type.Static4D;
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import org.distorted.main.R;
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import java.util.Random;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public class TwistyDino6 extends TwistyDino
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{
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  private static final int[] mFaceMap = {4,2, 0,4, 4,3, 1,4,
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                                         2,0, 3,0, 3,1, 2,1,
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                                         5,2, 0,5, 5,3, 1,5 };
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  TwistyDino6(int size, Static4D quat, DistortedTexture texture,
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              MeshSquare mesh, DistortedEffects effects, int[][] moves, Resources res, int scrWidth)
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    {
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    super(size, quat, texture, mesh, effects, moves, ObjectList.DINO, res, scrWidth);
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  int getFaceColor(int cubit, int cubitface, int size)
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    {
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    switch(cubitface)
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      {
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      case 0 : return mFaceMap[2*cubit];
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      case 1 : return mFaceMap[2*cubit+1];
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      default: return NUM_FACES;
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      }
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  boolean shouldResetTextureMaps()
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    {
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    return false;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public void randomizeNewScramble(int[][] scramble, Random rnd, int num)
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    {
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    if( num==0 )
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      {
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      scramble[num][0] = rnd.nextInt(ROTATION_AXIS.length);
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      scramble[num][1] = rnd.nextFloat()<=0.5f ? 0:2;
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      }
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    else
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      {
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      int newVector = rnd.nextInt(ROTATION_AXIS.length-1);
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      scramble[num][0] = (newVector>=scramble[num-1][0] ? newVector+1 : newVector);
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      scramble[num][1] = scramble[num-1][0]+scramble[num][0]==3 ? 2-scramble[num-1][1] : scramble[num-1][1];
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      }
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    switch( rnd.nextInt(2) )
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      {
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      case 0: scramble[num][2] = -1; break;
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      case 1: scramble[num][2] =  1; break;
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      }
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Dino6 is solved if and only if:
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//
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// All four 'X' cubits (i.e. those whose longest edge goes along the X axis) are rotated
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// by the same quaternion qX, similarly all four 'Y' cubits by the same qY and all four 'Z'
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// by the same qZ, and then either:
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//
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// a) qX = qY = qZ
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// b) qY = qX*Q2 and qZ = qX*Q8  (i.e. swap of WHITE and YELLOW faces)
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// c) qX = qY*Q2 and qZ = qY*Q10 (i.e. swap of BLUE and GREEN faces)
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// d) qX = qZ*Q8 and qY = qZ*Q10 (i.e. swap of RED and BROWN faces)
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//
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// BUT: cases b), c) and d) are really the same - it's all just a mirror image of the original.
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//
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// X cubits: 0, 2, 8, 10
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// Y cubits: 1, 3, 9, 11
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// Z cubits: 4, 5, 6, 7
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  public boolean isSolved()
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    {
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    int qX = CUBITS[0].mQuatIndex;
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    int qY = CUBITS[1].mQuatIndex;
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    int qZ = CUBITS[4].mQuatIndex;
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    if( CUBITS[2].mQuatIndex != qX || CUBITS[8].mQuatIndex != qX || CUBITS[10].mQuatIndex != qX ||
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        CUBITS[3].mQuatIndex != qY || CUBITS[9].mQuatIndex != qY || CUBITS[11].mQuatIndex != qY ||
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        CUBITS[5].mQuatIndex != qZ || CUBITS[6].mQuatIndex != qZ || CUBITS[ 7].mQuatIndex != qZ  )
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      {
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      return false;
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      }
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    return ( qX==qY && qX==qZ ) || ( qY==mulQuat(qX,2) && qZ==mulQuat(qX,8) );
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public int getObjectName(int numLayers)
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    {
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    return R.string.dino3;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public int getInventor(int numLayers)
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    {
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    return R.string.dino3_inventor;
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    }
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}
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