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c0254421
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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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// 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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eaf87d1d
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Leszek Koltunski
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package org.distorted.helpers;
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c0254421
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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6cf89a3e
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Leszek Koltunski
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import java.util.Random;
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public class ScrambleState
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c0254421
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Leszek Koltunski
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{
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8db55f55
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Leszek Koltunski
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private final int mTotal, mNumAxis;
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private final int[] mNum;
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c0254421
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Leszek Koltunski
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private final int[] mInfo;
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private final int[] mTmp;
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private final int LEN = 4;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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6cf89a3e
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Leszek Koltunski
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public ScrambleState(int[][] axis)
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c0254421
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Leszek Koltunski
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{
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mTmp = new int[LEN];
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8db55f55
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Leszek Koltunski
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mNumAxis = axis.length;
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mNum = new int[mNumAxis];
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int total =0;
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c0254421
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Leszek Koltunski
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8db55f55
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Leszek Koltunski
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for(int i=0; i<mNumAxis; i++)
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c0254421
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Leszek Koltunski
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{
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8db55f55
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Leszek Koltunski
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mNum[i] = axis[i]==null ? 0 : axis[i].length/(LEN-1);
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total += mNum[i];
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c0254421
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Leszek Koltunski
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}
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8db55f55
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Leszek Koltunski
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mTotal = total;
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c0254421
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Leszek Koltunski
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8db55f55
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Leszek Koltunski
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mInfo = new int[LEN*total];
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int start = 0;
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c0254421
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Leszek Koltunski
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8db55f55
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Leszek Koltunski
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for(int i=0; i<mNumAxis; i++)
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c0254421
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Leszek Koltunski
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{
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8db55f55
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Leszek Koltunski
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for(int j=0; j<mNum[i]; j++)
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{
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mInfo[LEN*j + start] = i;
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mInfo[LEN*j+1 + start] = axis[i][(LEN-1)*j ];
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mInfo[LEN*j+2 + start] = axis[i][(LEN-1)*j+1];
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mInfo[LEN*j+3 + start] = axis[i][(LEN-1)*j+2];
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}
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start += LEN*mNum[i];
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c0254421
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Leszek Koltunski
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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8db55f55
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Leszek Koltunski
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private int getIndex(int num, int indexExcluded)
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c0254421
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Leszek Koltunski
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{
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8db55f55
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Leszek Koltunski
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int current= -1;
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c0254421
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Leszek Koltunski
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8db55f55
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Leszek Koltunski
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for(int i=0; i<mTotal; i++)
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if( mInfo[LEN*i]!=indexExcluded && ++current==num ) return i;
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c0254421
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Leszek Koltunski
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return -1;
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}
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6cf89a3e
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public int[] getRandom(Random rnd, int indexExcluded, int[][] scrambleTable, int[] numOccurences)
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{
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int num=0, total=0, max=0, ax, layer;
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for(int i=0; i<mTotal; i++)
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{
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ax = mInfo[LEN*i];
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if( ax!=indexExcluded )
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{
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layer = mInfo[LEN*i+1];
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int value = scrambleTable[ax][layer];
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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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ax = mInfo[LEN*i];
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if( ax!=indexExcluded )
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{
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layer = mInfo[LEN*i+1];
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int value = scrambleTable[ax][layer];
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numOccurences[total] = 1 + max - value + (total==0 ? 0 : numOccurences[total-1]);
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total++;
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}
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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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{
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if( random <= numOccurences[i] )
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{
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num=i;
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break;
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}
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}
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int index = getIndex(num,indexExcluded);
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mTmp[0] = mInfo[LEN*index ]; // axis
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mTmp[1] = mInfo[LEN*index+1]; // row
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mTmp[2] = mInfo[LEN*index+2]; // angle
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mTmp[3] = mInfo[LEN*index+3]; // next state
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scrambleTable[mTmp[0]][mTmp[1]]++;
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return mTmp;
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}
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c0254421
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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8db55f55
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Leszek Koltunski
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public int getTotal(int indexExcluded)
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c0254421
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Leszek Koltunski
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{
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8db55f55
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Leszek Koltunski
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return ( indexExcluded>=0 && indexExcluded<mNumAxis ) ? mTotal-mNum[indexExcluded] : mTotal;
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c0254421
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Leszek Koltunski
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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8db55f55
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Leszek Koltunski
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public int[] getInfo(int num, int indexExcluded)
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c0254421
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Leszek Koltunski
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{
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8db55f55
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Leszek Koltunski
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int index = getIndex(num,indexExcluded);
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c0254421
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Leszek Koltunski
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mTmp[0] = mInfo[LEN*index ]; // axis
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mTmp[1] = mInfo[LEN*index+1]; // row
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mTmp[2] = mInfo[LEN*index+2]; // angle
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mTmp[3] = mInfo[LEN*index+3]; // next state
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return mTmp;
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}
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}
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