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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 org.distorted.library.type.Static3D;
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import static org.distorted.objects.TwistyKilominx.C1;
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import static org.distorted.objects.TwistyKilominx.C2;
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import static org.distorted.objects.TwistyKilominx.LEN;
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import static org.distorted.helpers.FactoryCubit.SIN54;
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import static org.distorted.helpers.FactoryCubit.COS54;
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import static org.distorted.objects.TwistyObject.SQ5;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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class MovementMinx extends Movement
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{
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static final float DIST3D = (float)Math.sqrt(0.625f+0.275f*SQ5)/3;
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static final float DIST2D = (0.5f*SIN54/COS54)/3;
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static final Static3D[] FACE_AXIS = new Static3D[]
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{
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new Static3D( C2/LEN, C1/LEN, 0 ),
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new Static3D( C2/LEN,-C1/LEN, 0 ),
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new Static3D(-C2/LEN, C1/LEN, 0 ),
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new Static3D(-C2/LEN,-C1/LEN, 0 ),
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new Static3D( 0 , C2/LEN, C1/LEN ),
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new Static3D( 0 , C2/LEN,-C1/LEN ),
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new Static3D( 0 ,-C2/LEN, C1/LEN ),
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new Static3D( 0 ,-C2/LEN,-C1/LEN ),
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new Static3D( C1/LEN, 0 , C2/LEN ),
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new Static3D( C1/LEN, 0 ,-C2/LEN ),
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new Static3D(-C1/LEN, 0 , C2/LEN ),
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new Static3D(-C1/LEN, 0 ,-C2/LEN )
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};
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///////////////////////////////////////////////////////////////////////////////////////////////////
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MovementMinx()
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{
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super(TwistyMinx.ROT_AXIS, FACE_AXIS, DIST3D, DIST2D);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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int computeRowFromOffset(int face, int size, float offset)
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{
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if( size==3 )
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{
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return offset<DIST2D ? 0:2;
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}
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if( size==5 )
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{
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float quot = offset / DIST2D;
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if( quot>0.00f && quot<=0.34f ) return 0;
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if( quot>0.34f && quot<=1.00f ) return 1;
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if( quot>1.00f && quot<=1.66f ) return 3;
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if( quot>1.66f && quot<=2.00f ) return 4;
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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 size, 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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// return angle (in radians) that the line connecting the center C of the pentagonal face and the
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// first vertex of the pentagon makes with a vertical line coming upwards from the center C.
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private float returnAngle(int face)
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{
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switch(face)
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{
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case 0:
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case 2:
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case 6:
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case 7: return 0.0f;
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case 1:
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case 3:
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case 4:
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case 5: return (float)(36*Math.PI/180);
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case 9:
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case 10: return (float)(54*Math.PI/180);
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case 8:
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case 11: return (float)(18*Math.PI/180);
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}
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return 0.0f;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// The pair (distance,angle) defines a point P in R^2 in polar coordinate system. Let V be the vector
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// from the center of the coordinate system to P.
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// Let P' be the point defined by polar (distance,angle+PI/2). Let Lh be the half-line starting at
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// P' and going in the direction of V.
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// Return true iff point 'point' lies on the left of Lh, i.e. when we rotate (using the center of
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// the coordinate system as the center of rotation) 'point' and Lh in such a way that Lh points
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// directly upwards, is 'point' on the left or the right of it?
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private boolean isOnTheLeft(float[] point, float distance, float angle)
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{
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float sin = (float)Math.sin(angle);
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float cos = (float)Math.cos(angle);
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float vx = point[0] + sin*distance;
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float vy = point[1] - cos*distance;
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return vx*sin < vy*cos;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Return 1,2,3,4,5 - the vertex of the pentagon to which point 'point' is the closest, if the
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// 'point' is inside the pentagon - or 0 otherwise.
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// The 'first' vertex is the one we meet the first when we rotate clockwise starting from 12:00.
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// This vertex makes angle 'returnAngle()' with the line coming out upwards from the center of the
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// pentagon.
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// Distance from the center to a vertex of the pentagon = 1/(6*COS54)
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private int returnPartOfThePentagon(float[] point, int face)
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{
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float angle = returnAngle(face);
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float A = (float)(Math.PI/5);
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for(int i=0; i<5; i++)
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{
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if( isOnTheLeft(point, DIST2D, (9-2*i)*A-angle) ) return 0;
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}
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if( isOnTheLeft(point, 0, 2.5f*A-angle) )
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{
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if( isOnTheLeft(point, 0, 3.5f*A-angle) )
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{
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return isOnTheLeft(point, 0, 5.5f*A-angle) ? 4 : 5;
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}
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else return 1;
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}
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else
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{
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if( isOnTheLeft(point, 0, 4.5f*A-angle) )
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{
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return 3;
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}
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else
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{
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return isOnTheLeft(point, 0, 6.5f*A-angle) ? 2 : 1;
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}
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}
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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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return returnPartOfThePentagon(p,face) > 0;
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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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int part = returnPartOfThePentagon(touchPoint,face);
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if( part>0 )
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{
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enabled[0] = 2;
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switch(face)
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{
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case 0: switch(part)
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{
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case 1: enabled[1]=2; enabled[2]=3; break;
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case 2: enabled[1]=3; enabled[2]=5; break;
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case 3: enabled[1]=5; enabled[2]=1; break;
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case 4: enabled[1]=1; enabled[2]=4; break;
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case 5: enabled[1]=4; enabled[2]=2; break;
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}
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break;
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case 1: switch(part)
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{
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case 1: enabled[1]=0; enabled[2]=5; break;
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case 2: enabled[1]=5; enabled[2]=2; break;
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case 3: enabled[1]=2; enabled[2]=3; break;
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case 4: enabled[1]=3; enabled[2]=4; break;
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case 5: enabled[1]=4; enabled[2]=0; break;
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}
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break;
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case 2: switch(part)
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{
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case 1: enabled[1]=3; enabled[2]=2; break;
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case 2: enabled[1]=2; enabled[2]=5; break;
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case 3: enabled[1]=5; enabled[2]=0; break;
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case 4: enabled[1]=0; enabled[2]=4; break;
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case 5: enabled[1]=4; enabled[2]=3; break;
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}
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break;
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case 3: switch(part)
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{
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case 1: enabled[1]=1; enabled[2]=5; break;
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case 2: enabled[1]=5; enabled[2]=3; break;
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case 3: enabled[1]=3; enabled[2]=2; break;
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case 4: enabled[1]=2; enabled[2]=4; break;
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case 5: enabled[1]=4; enabled[2]=1; break;
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}
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break;
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case 4: switch(part)
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{
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case 1: enabled[1]=3; enabled[2]=0; break;
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case 2: enabled[1]=0; enabled[2]=4; break;
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case 3: enabled[1]=4; enabled[2]=5; break;
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case 4: enabled[1]=5; enabled[2]=1; break;
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case 5: enabled[1]=1; enabled[2]=3; break;
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}
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break;
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case 5: switch(part)
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{
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case 1: enabled[1]=2; enabled[2]=1; break;
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case 2: enabled[1]=1; enabled[2]=4; break;
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case 3: enabled[1]=4; enabled[2]=5; break;
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case 4: enabled[1]=5; enabled[2]=0; break;
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case 5: enabled[1]=0; enabled[2]=2; break;
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}
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break;
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case 6: switch(part)
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{
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case 1: enabled[1]=5; enabled[2]=4; break;
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case 2: enabled[1]=4; enabled[2]=1; break;
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case 3: enabled[1]=1; enabled[2]=2; break;
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case 4: enabled[1]=2; enabled[2]=0; break;
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case 5: enabled[1]=0; enabled[2]=5; break;
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}
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break;
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case 7: switch(part)
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{
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case 1: enabled[1]=5; enabled[2]=4; break;
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case 2: enabled[1]=4; enabled[2]=0; break;
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case 3: enabled[1]=0; enabled[2]=3; break;
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case 4: enabled[1]=3; enabled[2]=1; break;
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case 5: enabled[1]=1; enabled[2]=5; break;
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}
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break;
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case 8: switch(part)
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{
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case 1: enabled[1]=2; enabled[2]=0; break;
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case 2: enabled[1]=0; enabled[2]=1; break;
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case 3: enabled[1]=1; enabled[2]=3; break;
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case 4: enabled[1]=3; enabled[2]=5; break;
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case 5: enabled[1]=5; enabled[2]=2; break;
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}
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break;
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case 9: switch(part)
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{
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case 1: enabled[1]=3; enabled[2]=4; break;
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case 2: enabled[1]=4; enabled[2]=2; break;
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case 3: enabled[1]=2; enabled[2]=1; break;
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case 4: enabled[1]=1; enabled[2]=0; break;
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case 5: enabled[1]=0; enabled[2]=3; break;
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}
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break;
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case 10: switch(part)
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{
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case 1: enabled[1]=2; enabled[2]=4; break;
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case 2: enabled[1]=4; enabled[2]=3; break;
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case 3: enabled[1]=3; enabled[2]=0; break;
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case 4: enabled[1]=0; enabled[2]=1; break;
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case 5: enabled[1]=1; enabled[2]=2; break;
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}
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break;
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case 11: switch(part)
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{
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case 1: enabled[1]=3; enabled[2]=1; break;
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case 2: enabled[1]=1; enabled[2]=0; break;
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case 3: enabled[1]=0; enabled[2]=2; break;
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case 4: enabled[1]=2; enabled[2]=5; break;
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case 5: enabled[1]=5; enabled[2]=3; break;
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}
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break;
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}
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}
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else
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{
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enabled[0] = 0;
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}
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}
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}
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