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magiccube / src / main / java / org / distorted / objects / TwistyDino4.java @ bbc6471c

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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 TwistyDino4 extends TwistyDino
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{
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  private static final int[] mFaceMap = {4,4, 2,2, 2,2, 4,4,
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                                         0,0, 2,2, 1,1, 4,4,
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                                         0,0, 0,0, 1,1, 1,1 };
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  TwistyDino4(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.DIN4, 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 true;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  public void randomizeNewScramble(int[] scramble, Random rnd, int oldRotAxis, int oldRow,
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                                   int numScramble, int remScrambles, int remDoubleScrambles)
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    {
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    if( numScramble==1 )
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      {
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      scramble[0] = rnd.nextInt(ROTATION_AXIS.length);
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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[0] = (newVector>=oldRotAxis ? newVector+1 : newVector);
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      }
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    scramble[1] = (numScramble==1) ? ((scramble[0]==1 || scramble[0]==2) ? 0:2) : (oldRotAxis+scramble[0]==3 ? 2-oldRow : oldRow);
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    int random = rnd.nextInt(remScrambles);
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    int result = random<remDoubleScrambles ? 2:1;
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    int sign   = rnd.nextInt(2);
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    scramble[2] = sign==0 ? result : -result;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Dino4 is solved if and only if the four groups of three same-colored cubits are each 'together'
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// (actually we need to check only 3 first groups - if those are correct, the fourth one also needs
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// to be correct).
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//
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// White group : (X,Y,Z) = 10,11,6
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// Red group   : (X,Y,Z) = 0,3,7
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// Blue group  : (X,Y,Z) = 2,1,5
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// Yellow group: (X,Y,Z) = 8,9,4
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//
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// A group of 3 cubits is 'together' if and only if they are all rotated with one quat - but we cannot
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// forget that the whole Dino can be mirrored! (so then qY = qX*Q2 and qZ = qX*Q8 )
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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 redX = CUBITS[0].mQuatIndex;
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    int bluX = CUBITS[2].mQuatIndex;
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    int yelX = CUBITS[8].mQuatIndex;
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    if (CUBITS[3].mQuatIndex == redX && CUBITS[7].mQuatIndex == redX &&
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        CUBITS[1].mQuatIndex == bluX && CUBITS[5].mQuatIndex == bluX &&
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        CUBITS[9].mQuatIndex == yelX && CUBITS[4].mQuatIndex == yelX  ) return true;
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    if (CUBITS[3].mQuatIndex != mulQuat(redX,2)) return false;
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    if (CUBITS[7].mQuatIndex != mulQuat(redX,8)) return false;
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    if (CUBITS[1].mQuatIndex != mulQuat(bluX,2)) return false;
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    if (CUBITS[5].mQuatIndex != mulQuat(bluX,8)) return false;
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    if (CUBITS[9].mQuatIndex != mulQuat(yelX,2)) return false;
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    if (CUBITS[4].mQuatIndex != mulQuat(yelX,8)) return false;
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    return true;
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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.din43;
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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.din43_inventor;
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    }
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}
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