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torben |
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/*************************************************************************** |
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* Copyright (C) 2005 by Torben Nielsen * |
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* torben@t-hoerup.dk * |
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* * |
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* This program 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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* This program 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 this program; if not, write to the * |
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* Free Software Foundation, Inc., * |
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
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***************************************************************************/ |
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#include "solutionhash.h" |
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SolutionHash::SolutionHash(GUIUpdate* update) |
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: SolutionContainer(update) |
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{ |
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total = -1; |
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m_size = 0; |
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m_hashroof = max_size; |
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for (int i=0; i< max_size; i++) |
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solutions[i] = new SolList(); |
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} |
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SolutionHash::~SolutionHash() |
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{ |
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} |
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int SolutionHash::numSolutions() |
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{ |
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int size = 0; |
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for (int i=0; i<m_hashroof; i++) { |
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size += solutions[i]->size(); |
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} |
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return size; |
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} |
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int SolutionHash::totalSolutions() |
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{ |
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return total; |
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} |
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void SolutionHash::uniqueSolutions() |
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{ |
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while (m_hashroof >1 ) { |
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for (int bucket=0; bucket < m_hashroof; bucket++) { |
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for (int i=1;i<=4;i++) { |
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if (m_halt) |
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return; |
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uniqueSolutionsWorker(bucket, i,false); |
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uniqueSolutionsWorker(bucket, i,true); |
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} |
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} |
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for (int i=0; i< (m_hashroof/2); i++) { |
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//int base = i*2; |
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int base2 = (m_hashroof/2)+i; |
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/*if (i!=0) { |
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solutions[i] = solutions[base]; |
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} |
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ListIt p = solutions[i]->end(); |
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solutions[i]->splice(p, *solutions[base+1] ); |
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*/ |
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ListIt p = solutions[i]->end(); |
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solutions[i]->splice(p, *solutions[base2]); |
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} |
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m_hashroof /= 2; |
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} |
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for (int i=1;i<=4;i++) { |
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uniqueSolutionsWorker(0, i, false); |
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uniqueSolutionsWorker(0, i, true); |
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} |
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} |
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void SolutionHash::uniqueSolutionsWorker(int bucket, int rot,bool mirror) |
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{ |
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int match_count; |
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if (solutions[bucket]->size() == 0) |
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return; |
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if (total == -1) |
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total = solutions[bucket]->size(); |
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for (ListIt i=solutions[bucket]->begin(); i != solutions[bucket]->end(); i++) { |
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if (m_halt) |
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return; |
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match_count = 0; |
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Solution* tmp = (*i)->copy(); |
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if (mirror) |
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tmp->mirror(); |
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for (int k=0;k<rot;k++) |
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tmp->rotate90(); |
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//unders�g kun resten af m�ngden, start ved i+1 |
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ListIt j =i; |
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j++; |
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for ( ; j!=solutions[bucket]->end();j++) { |
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if ( *tmp == *(*j) ) { |
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solutions[bucket]->erase(j); |
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break; |
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} |
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} |
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} |
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} |
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/* BACKUP |
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void SolutionHash::uniqueSolutionsWorker(int rot,bool mirror) |
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{ |
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int match_count; |
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unique = true; |
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if (total == -1) |
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total = solutions.size(); |
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for (ListIt i=solutions.begin(); i != solutions.end(); i++) { |
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match_count = 0; |
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Solution tmp(*i); |
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if (mirror) |
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tmp.mirror(); |
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for (int k=0;k<rot;k++) |
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tmp.rotate90(); |
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//unders�g kun resten af m�ngden, start ved i+1 |
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ListIt j =i; |
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j++; |
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for ( ; j!=solutions.end();j++) { |
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if ( tmp == (*j) ) { |
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solutions.erase(j); |
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break; |
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} |
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} |
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} |
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} |
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*/ |
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void SolutionHash::addSolution(Solution* sol) |
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{ |
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int hash = m_size % max_size; |
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solutions[hash]->push_back(sol); |
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m_size++; |
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} |
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Solution* SolutionHash::solution(int index) |
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{ |
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int count=0; |
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ListIt it; |
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for (it = solutions[0]->begin(); it != solutions[0]->end(); it++, count++) { |
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if (count == index) { |
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break; |
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} |
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} |
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return *it; |
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} |