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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.objectlib.touchcontrol;
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import org.distorted.library.type.Static3D;
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import org.distorted.objectlib.main.TwistyObject;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Octahedral objects: map the 2D swipes of user's fingers to 3D rotations
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public class TouchControlOctahedron extends TouchControlShapeConstant
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{
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private static final float DIST3D = SQ6/6;
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private static final float DIST2D = SQ3/6;
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private static final float[] D3D = { DIST3D,DIST3D,DIST3D,DIST3D,DIST3D,DIST3D,DIST3D,DIST3D };
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public static final Static3D[] FACE_AXIS = new Static3D[]
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{
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new Static3D(+SQ6/3,+SQ3/3, 0), new Static3D(-SQ6/3,-SQ3/3, 0),
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new Static3D(-SQ6/3,+SQ3/3, 0), new Static3D(+SQ6/3,-SQ3/3, 0),
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new Static3D( 0,+SQ3/3,+SQ6/3), new Static3D( 0,-SQ3/3,-SQ6/3),
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new Static3D( 0,+SQ3/3,-SQ6/3), new Static3D( 0,-SQ3/3,+SQ6/3)
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};
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public TouchControlOctahedron(TwistyObject object)
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{
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super(object,D3D,FACE_AXIS);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// corner edge
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// | \ 0 /
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// 2 | 0 \ /
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// / \ 2 | 1
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// / 1 \ |
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int returnPart(int type, int face, float[] touchPoint)
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{
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switch(type)
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{
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case TYPE_NOT_SPLIT : return 0;
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case TYPE_SPLIT_EDGE : float y1 = (face%2 == 0 ? touchPoint[1] : -touchPoint[1]);
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float x1 = touchPoint[0];
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boolean e0 = x1>0;
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boolean e1 = y1>(+SQ3/3)*x1;
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boolean e2 = y1>(-SQ3/3)*x1;
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if( e1 && e2 ) return 0;
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if( !e1 && e0 ) return 1;
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if( !e0 &&!e2 ) return 2;
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case TYPE_SPLIT_CORNER: float y2 = (face%2 == 0 ? touchPoint[1] : -touchPoint[1]);
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float x2 = touchPoint[0];
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boolean c0 = x2>0;
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boolean c1 = y2>(+SQ3/3)*x2;
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boolean c2 = y2>(-SQ3/3)*x2;
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if( c0 && c2 ) return 0;
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if( !c1 &&!c2 ) return 1;
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if( !c0 && c1 ) return 2;
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}
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return 0;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public float returnRotationFactor(int[] numLayers, int row)
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{
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return 1.0f;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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boolean isInsideFace(int face, float[] p)
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{
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float y = (face%2 == 0 ? p[1] : -p[1]);
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float x = p[0];
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return (y >= -DIST2D) && (y <= DIST2D*(2-6*x)) && (y <= DIST2D*(2+6*x));
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}
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}
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