mirror of
https://github.com/RetroShare/RetroShare.git
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554 lines
15 KiB
C++
554 lines
15 KiB
C++
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/***************************************************************************
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* Copyright (C) 2002-2003 Andi Peredri *
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* andi@ukr.net *
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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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//
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// Russian Checkers
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#include "rcheckers.h"
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///////////////////////////////////////////////////
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//
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// Player Functions
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//
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///////////////////////////////////////////////////
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bool RCheckers::go1(int from,int field)
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{
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from=internal(from);
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field=internal(field);
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to=field;
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if(checkCapture1())
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{
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bool capture=false;
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switch(board[from])
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{
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case MAN1:
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if(manCapture1(from,UL,capture)) return true;
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if(manCapture1(from,UR,capture)) return true;
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if(manCapture1(from,DL,capture)) return true;
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if(manCapture1(from,DR,capture)) return true;
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return false;
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case KING1:
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if(kingCapture1(from,UL,capture)) return true;
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if(kingCapture1(from,UR,capture)) return true;
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if(kingCapture1(from,DL,capture)) return true;
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if(kingCapture1(from,DR,capture)) return true;
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return false;
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}
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}
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else
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{
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switch(board[from])
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{
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case MAN1:
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if((to==(from-6))||(to==(from-5)))
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{
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board[from]=FREE;
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if(to<10) board[to]=KING1;
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else board[to]=MAN1;
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return true;
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}
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return false;
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case KING1:
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for(int i=from-6;;i-=6)
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{
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if(i==to)
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{
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board[from]=FREE;
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board[to]=KING1;
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return true;
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}
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else if(board[i]==FREE) continue;
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else break;
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}
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for(int i=from-5;;i-=5)
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{
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if(i==to)
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{
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board[from]=FREE;
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board[to]=KING1;
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return true;
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}
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else if(board[i]==FREE) continue;
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else break;
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}
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for(int i=from+5;;i+=5)
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{
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if(i==to)
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{
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board[from]=FREE;
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board[to]=KING1;
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return true;
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}
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else if(board[i]==FREE) continue;
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else break;
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}
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for(int i=from+6;;i+=6)
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{
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if(i==to)
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{
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board[from]=FREE;
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board[to]=KING1;
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return true;
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}
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else if(board[i]==FREE) continue;
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else break;
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}
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return false;
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}
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}
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return false;
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}
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bool RCheckers::checkCapture1() const
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{
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for(int i=6;i<48;i++)
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if(checkCapture1(i))
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return true;
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return false;
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}
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bool RCheckers::checkCapture1(int i) const
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{
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switch(board[i])
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{
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case MAN1:
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if(board[i-6]==MAN2 || board[i-6]==KING2)
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if(board[i-12]==FREE) return true;
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if(board[i-5]==MAN2 || board[i-5]==KING2)
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if(board[i-10]==FREE) return true;
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if(board[i+5]==MAN2 || board[i+5]==KING2)
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if(board[i+10]==FREE) return true;
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if(board[i+6]==MAN2 || board[i+6]==KING2)
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if(board[i+12]==FREE) return true;
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break;
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case KING1:
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int k;
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for(k=i-6;board[k]==FREE;k-=6);
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if(board[k]==MAN2 || board[k]==KING2)
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if(board[k-6]==FREE) return true;
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for(k=i-5;board[k]==FREE;k-=5);
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if(board[k]==MAN2 || board[k]==KING2)
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if(board[k-5]==FREE) return true;
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for(k=i+5;board[k]==FREE;k+=5);
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if(board[k]==MAN2 || board[k]==KING2)
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if(board[k+5]==FREE) return true;
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for(k=i+6;board[k]==FREE;k+=6);
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if(board[k]==MAN2 || board[k]==KING2)
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if(board[k+6]==FREE) return true;
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}
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return false;
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}
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/* ORIG func aw
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bool RCheckers::checkCapture1()
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{
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for(int i=6;i<48;i++)
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{
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switch(board[i])
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{
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case MAN1:
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if(board[i-6]==MAN2 || board[i-6]==KING2)
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if(board[i-12]==FREE) return true;
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if(board[i-5]==MAN2 || board[i-5]==KING2)
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if(board[i-10]==FREE) return true;
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if(board[i+5]==MAN2 || board[i+5]==KING2)
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if(board[i+10]==FREE) return true;
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if(board[i+6]==MAN2 || board[i+6]==KING2)
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if(board[i+12]==FREE) return true;
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break;
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case KING1:
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int k;
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for(k=i-6;board[k]==FREE;k-=6);
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if(board[k]==MAN2 || board[k]==KING2)
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if(board[k-6]==FREE) return true;
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for(k=i-5;board[k]==FREE;k-=5);
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if(board[k]==MAN2 || board[k]==KING2)
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if(board[k-5]==FREE) return true;
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for(k=i+5;board[k]==FREE;k+=5);
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if(board[k]==MAN2 || board[k]==KING2)
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if(board[k+5]==FREE) return true;
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for(k=i+6;board[k]==FREE;k+=6);
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if(board[k]==MAN2 || board[k]==KING2)
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if(board[k+6]==FREE) return true;
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}
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}
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return false;
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}
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*/
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// Return TRUE if a course of the player true
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// Return FALSE if a course of the player incorrect
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bool RCheckers::manCapture1(int from,int direction,bool &capture)
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{
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int i=from+direction;
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if(board[i]==MAN2 || board[i]==KING2)
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{
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int k=i+direction;
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if(board[k]==FREE)
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{
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bool next=false;
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int save=board[i];
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board[from]=FREE;
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board[i]=NONE;
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if(k<10)
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{
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board[k]=KING1;
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if(kingCapture1(k,direction+11,next))
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{
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board[i]=FREE;
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return true;
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}
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}
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else
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{
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board[k]=MAN1;
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if(direction==UL || direction==DR)
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{
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if(manCapture1(k,UR,next)) {board[i]=FREE;return true;}
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if(manCapture1(k,DL,next)) {board[i]=FREE;return true;}
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}
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else
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{
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if(manCapture1(k,UL,next)) {board[i]=FREE;return true;}
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if(manCapture1(k,DR,next)) {board[i]=FREE;return true;}
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}
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if(manCapture1(k,direction,next)) {board[i]=FREE;return true;}
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}
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if((!next) && k==to) {board[i]=FREE;return true;}
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board[k]=FREE;
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board[i]=save;
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board[from]=MAN1;
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capture=true;
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}
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}
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return false;
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}
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bool RCheckers::kingCapture1(int from,int direction,bool &capture)
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{
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int i;
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for(i=from+direction;board[i]==FREE;i+=direction);
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if(board[i]==MAN2 || board[i]==KING2)
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{
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int k=i+direction;
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if(board[k]==FREE)
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{
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bool next=false;
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int save=board[i];
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board[from]=FREE;
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board[i]=NONE;
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for(;board[k]==FREE;k+=direction)
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{
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board[k]=KING1;
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if(direction==UL || direction==DR)
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{
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if(kingCapture1(k,UR,next)) {board[i]=FREE;return true;}
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if(kingCapture1(k,DL,next)) {board[i]=FREE;return true;}
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}
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else
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{
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if(kingCapture1(k,UL,next)) {board[i]=FREE;return true;}
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if(kingCapture1(k,DR,next)) {board[i]=FREE;return true;}
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}
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board[k]=FREE;
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}
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board[k-=direction]=KING1;
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if(kingCapture1(k,direction,next)) {board[i]=FREE;return true;}
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board[k]=FREE;
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if(!next)
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for(;k!=i;k-=direction)
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if(k==to) {board[i]=FREE;board[k]=KING1;return true;}
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board[i]=save;
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board[from]=KING1;
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capture=true;
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}
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}
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return false;
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}
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////////////////////////////////////////////////////
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//
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// Computer Functions
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//
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////////////////////////////////////////////////////
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void RCheckers::kingMove2(int from,int &resMax)
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{
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board[from]=FREE;
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for(int i=from-6;board[i]==FREE;i-=6)
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{
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board[i]=KING2;
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turn(resMax);
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board[i]=FREE;
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}
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for(int i=from-5;board[i]==FREE;i-=5)
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{
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board[i]=KING2;
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turn(resMax);
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board[i]=FREE;
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}
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for(int i=from+5;board[i]==FREE;i+=5)
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{
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board[i]=KING2;
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turn(resMax);
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board[i]=FREE;
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}
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for(int i=from+6;board[i]==FREE;i+=6)
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{
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board[i]=KING2;
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turn(resMax);
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board[i]=FREE;
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}
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board[from]=KING2;
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}
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bool RCheckers::checkCapture2() const
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{
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for(int i=6;i<48;i++)
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{
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switch(board[i])
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{
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case MAN2:
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if(board[i-6]==MAN1 || board[i-6]==KING1)
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if(board[i-12]==FREE) return true;
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if(board[i-5]==MAN1 || board[i-5]==KING1)
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if(board[i-10]==FREE) return true;
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if(board[i+5]==MAN1 || board[i+5]==KING1)
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if(board[i+10]==FREE) return true;
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if(board[i+6]==MAN1 || board[i+6]==KING1)
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if(board[i+12]==FREE) return true;
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break;
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case KING2:
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int k;
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for(k=i-6;board[k]==FREE;k-=6);
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if(board[k]==MAN1 || board[k]==KING1)
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if(board[k-6]==FREE) return true;
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for(k=i-5;board[k]==FREE;k-=5);
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if(board[k]==MAN1 || board[k]==KING1)
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if(board[k-5]==FREE) return true;
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for(k=i+5;board[k]==FREE;k+=5);
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if(board[k]==MAN1 || board[k]==KING1)
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if(board[k+5]==FREE) return true;
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for(k=i+6;board[k]==FREE;k+=6);
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if(board[k]==MAN1 || board[k]==KING1)
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if(board[k+6]==FREE) return true;
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}
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|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// Return TRUE if it is possible to capture
|
||
|
|
// Return FALSE if it is impossible to capture
|
||
|
|
|
||
|
|
bool RCheckers::manCapture2(int from,int &resMax)
|
||
|
|
{
|
||
|
|
bool capture=false;
|
||
|
|
|
||
|
|
int i=from-6;
|
||
|
|
if(board[i]==MAN1 || board[i]==KING1)
|
||
|
|
{
|
||
|
|
int k=from-12;
|
||
|
|
if(board[k]==FREE)
|
||
|
|
{
|
||
|
|
int save=board[i];
|
||
|
|
board[from]=FREE;
|
||
|
|
board[i]=NONE;
|
||
|
|
board[k]=MAN2;
|
||
|
|
resMax--;
|
||
|
|
if(!manCapture2(k,resMax)) turn(resMax,true);
|
||
|
|
resMax++;
|
||
|
|
board[k]=FREE;
|
||
|
|
board[i]=save;
|
||
|
|
board[from]=MAN2;
|
||
|
|
capture=true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
i=from-5;
|
||
|
|
if(board[i]==MAN1 || board[i]==KING1)
|
||
|
|
{
|
||
|
|
int k=from-10;
|
||
|
|
if(board[k]==FREE)
|
||
|
|
{
|
||
|
|
int save=board[i];
|
||
|
|
board[from]=FREE;
|
||
|
|
board[i]=NONE;
|
||
|
|
board[k]=MAN2;
|
||
|
|
resMax--;
|
||
|
|
if(!manCapture2(k,resMax)) turn(resMax,true);
|
||
|
|
resMax++;
|
||
|
|
board[k]=FREE;
|
||
|
|
board[i]=save;
|
||
|
|
board[from]=MAN2;
|
||
|
|
capture=true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
i=from+5;
|
||
|
|
if(board[i]==MAN1 || board[i]==KING1)
|
||
|
|
{
|
||
|
|
int k=from+10;
|
||
|
|
if(board[k]==FREE)
|
||
|
|
{
|
||
|
|
int save=board[i];
|
||
|
|
board[from]=FREE;
|
||
|
|
board[i]=NONE;
|
||
|
|
resMax--;
|
||
|
|
if(from>32)
|
||
|
|
{
|
||
|
|
board[k]=KING2;
|
||
|
|
if(!kingCapture2(k,UL,resMax)) turn(resMax,true);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
board[k]=MAN2;
|
||
|
|
if(!manCapture2(k,resMax)) turn(resMax,true);
|
||
|
|
}
|
||
|
|
resMax++;
|
||
|
|
board[k]=FREE;
|
||
|
|
board[i]=save;
|
||
|
|
board[from]=MAN2;
|
||
|
|
capture=true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
i=from+6;
|
||
|
|
if(board[i]==MAN1 || board[i]==KING1)
|
||
|
|
{
|
||
|
|
int k=from+12;
|
||
|
|
if(board[k]==FREE)
|
||
|
|
{
|
||
|
|
int save=board[i];
|
||
|
|
board[from]=FREE;
|
||
|
|
board[i]=NONE;
|
||
|
|
resMax--;
|
||
|
|
if(from>32)
|
||
|
|
{
|
||
|
|
board[k]=KING2;
|
||
|
|
if(!kingCapture2(k,UR,resMax)) turn(resMax,true);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
board[k]=MAN2;
|
||
|
|
if(!manCapture2(k,resMax)) turn(resMax,true);
|
||
|
|
}
|
||
|
|
resMax++;
|
||
|
|
board[k]=FREE;
|
||
|
|
board[i]=save;
|
||
|
|
board[from]=MAN2;
|
||
|
|
capture=true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if(capture) return true;
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
bool RCheckers::kingCapture2(int from,int direction,int &resMax)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
for(i=from+direction;board[i]==FREE;i+=direction);
|
||
|
|
|
||
|
|
if(board[i]==MAN1 || board[i]==KING1)
|
||
|
|
{
|
||
|
|
int k=i+direction;
|
||
|
|
if(board[k]==FREE)
|
||
|
|
{
|
||
|
|
bool capture=false;
|
||
|
|
int save=board[i];
|
||
|
|
board[from]=FREE;
|
||
|
|
board[i]=NONE;
|
||
|
|
resMax--;
|
||
|
|
|
||
|
|
for(;board[k]==FREE;k+=direction)
|
||
|
|
{
|
||
|
|
board[k]=KING2;
|
||
|
|
if(direction==UL || direction==DR)
|
||
|
|
{
|
||
|
|
if(kingCapture2(k,UR,resMax)) capture=true;
|
||
|
|
if(kingCapture2(k,DL,resMax)) capture=true;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if(kingCapture2(k,UL,resMax)) capture=true;
|
||
|
|
if(kingCapture2(k,DR,resMax)) capture=true;
|
||
|
|
}
|
||
|
|
board[k]=FREE;
|
||
|
|
}
|
||
|
|
|
||
|
|
board[k-=direction]=KING2;
|
||
|
|
if(kingCapture2(k,direction,resMax)) capture=true;
|
||
|
|
board[k]=FREE;
|
||
|
|
|
||
|
|
if(!capture)
|
||
|
|
for(;k!=i;k-=direction)
|
||
|
|
{
|
||
|
|
board[k]=KING2;
|
||
|
|
turn(resMax,true);
|
||
|
|
board[k]=FREE;
|
||
|
|
}
|
||
|
|
|
||
|
|
resMax++;
|
||
|
|
board[i]=save;
|
||
|
|
board[from]=KING2;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
|