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29b82486
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2021 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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babb7b08
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Leszek Koltunski
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// Magic Cube is proprietary software licensed under an EULA which you should have received //
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// along with the code. If not, check https://distorted.org/magic/License-Magic-Cube.html //
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29b82486
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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10b7e306
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Leszek Koltunski
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package org.distorted.objectlib.scrambling;
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29b82486
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Leszek Koltunski
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import java.util.Random;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public class ScrambleState
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{
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9ba7f3f6
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Leszek Koltunski
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private final boolean mMoreThanOneAxis;
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private final int mTotal;
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private final int[] mEdges;
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29b82486
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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9ba7f3f6
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Leszek Koltunski
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public ScrambleState(int[] edges, int[][] algorithms)
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29b82486
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Leszek Koltunski
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{
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Leszek Koltunski
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mEdges = edges;
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mTotal = edges.length/2;
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9ba7f3f6
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Leszek Koltunski
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int firstAxis= algorithms[edges[0]][0];
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boolean moreThanOne = false;
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29b82486
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Leszek Koltunski
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Leszek Koltunski
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for(int i=1; i<mTotal; i++)
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if( algorithms[edges[2*i]][0]!=firstAxis )
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29b82486
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Leszek Koltunski
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{
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Leszek Koltunski
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moreThanOne = true;
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break;
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29b82486
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Leszek Koltunski
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}
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9ba7f3f6
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Leszek Koltunski
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mMoreThanOneAxis = moreThanOne;
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29b82486
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Leszek Koltunski
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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e9ec2e9d
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Leszek Koltunski
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public void getRandom(Random rnd, int[][] algorithms, int axisExcluded, int[][] scrambleTable, int[] numOccurences, int[] result)
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29b82486
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Leszek Koltunski
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{
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9ba7f3f6
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Leszek Koltunski
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int total=0, max=0;
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29b82486
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Leszek Koltunski
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9ba7f3f6
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Leszek Koltunski
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if( !mMoreThanOneAxis ) axisExcluded=-1;
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4a5157a1
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Leszek Koltunski
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29b82486
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Leszek Koltunski
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for(int i=0; i<mTotal; i++)
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{
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9ba7f3f6
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Leszek Koltunski
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int[] alg = algorithms[mEdges[2*i]];
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29b82486
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Leszek Koltunski
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9ba7f3f6
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Leszek Koltunski
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if( alg[0]!=axisExcluded )
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29b82486
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Leszek Koltunski
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{
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9ba7f3f6
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Leszek Koltunski
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int value = scrambleTable[alg[0]][alg[1]];
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29b82486
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Leszek Koltunski
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if( value>max ) max=value;
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}
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}
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for(int i=0; i<mTotal; i++)
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{
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9ba7f3f6
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int[] alg = algorithms[mEdges[2*i]];
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e9ec2e9d
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Leszek Koltunski
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int previous = (total==0 ? 0 : numOccurences[total-1]);
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if( alg[0]!=axisExcluded ) numOccurences[total] = 1+max-scrambleTable[alg[0]][alg[1]]+previous;
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else numOccurences[total] = previous;
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total++;
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29b82486
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Leszek Koltunski
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}
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float random= rnd.nextFloat()*numOccurences[total-1];
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for(int i=0; i<total; i++)
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e9ec2e9d
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Leszek Koltunski
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if( random <= numOccurences[i] )
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{
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result[0] = mEdges[2*i];
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result[1] = mEdges[2*i+1];
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break;
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}
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f9a81f52
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Leszek Koltunski
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}
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29b82486
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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9ba7f3f6
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Leszek Koltunski
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public int getTotal()
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29b82486
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Leszek Koltunski
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{
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9ba7f3f6
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Leszek Koltunski
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return mTotal;
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29b82486
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Leszek Koltunski
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}
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}
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