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magiccube / src / main / java / org / distorted / objects / MovementDiamond.java @ be7c9190

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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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///////////////////////////////////////////////////////////////////////////////////////////////////
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class MovementDiamond extends Movement8
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{
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  MovementDiamond()
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    {
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    super(TwistyDiamond.ROT_AXIS);
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// We have either one of the four faces (1,3,4,6) which, when the retAxis are cast onto it, they
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// point the right way (and so the triangle then spans from offset=-SQ3/6 to offset=+SQ3/3 with
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// midpoint at SQ3/12) or one of the other face when the cast rotAxis are the wrong way round (and
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// the triangle spans then from 0 to SQ3/2 with midpoint at SQ3/4).
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  int computeRowFromOffset(int face, int axisIndex, int numLayers, float offset)
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    {
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    float off = ( face==1 || face==3 || face==4 || face==6 ) ? offset/SQ3 + 1.0f/6 : offset/SQ3;
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    return (int)(2*numLayers*off);
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  void computeEnabledAxis(int face, float[] touchPoint, int[] enabled)
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    {
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    enabled[0] = 3;
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    switch(face/2)
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      {
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      case 0: enabled[1]=1; enabled[2]=2; enabled[3]=3; break;
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      case 1: enabled[1]=0; enabled[2]=2; enabled[3]=3; break;
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      case 2: enabled[1]=0; enabled[2]=1; enabled[3]=3; break;
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      case 3: enabled[1]=0; enabled[2]=1; enabled[3]=2; break;
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      }
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    }
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}