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pileutils.cpp
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pileutils.cpp
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/*
* Copyright (C) 2010 Parker Coates <[email protected]>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "pileutils.h"
#include "KCard"
#include "KCardDeck"
namespace
{
inline int alternateColor( int color )
{
return color == KCardDeck::Red ? KCardDeck::Black : KCardDeck::Red;
}
}
bool isSameSuitAscending( const QList<KCard*> & cards )
{
if ( cards.size() <= 1 )
return true;
int suit = cards.first()->suit();
int lastRank = cards.first()->rank();
for( int i = 1; i < cards.size(); ++i )
{
++lastRank;
if ( cards[i]->suit() != suit || cards[i]->rank() != lastRank )
return false;
}
return true;
}
bool isSameSuitDescending( const QList<KCard*> & cards )
{
if ( cards.size() <= 1 )
return true;
int suit = cards.first()->suit();
int lastRank = cards.first()->rank();
for( int i = 1; i < cards.size(); ++i )
{
--lastRank;
if ( cards[i]->suit() != suit || cards[i]->rank() != lastRank )
return false;
}
return true;
}
bool isAlternateColorDescending( const QList<KCard*> & cards )
{
if ( cards.size() <= 1 )
return true;
int lastColor = cards.first()->color();
int lastRank = cards.first()->rank();
for( int i = 1; i < cards.size(); ++i )
{
lastColor = alternateColor( lastColor );
--lastRank;
if ( cards[i]->color() != lastColor || cards[i]->rank() != lastRank )
return false;
}
return true;
}
bool checkAddSameSuitAscendingFromAce( const QList<KCard*> & oldCards, const QList<KCard*> & newCards )
{
if ( !isSameSuitAscending( newCards ) )
return false;
if ( oldCards.isEmpty() )
return newCards.first()->rank() == KCardDeck::Ace;
else
return newCards.first()->suit() == oldCards.last()->suit()
&& newCards.first()->rank() == oldCards.last()->rank() + 1;
}
bool checkAddAlternateColorDescending( const QList<KCard*> & oldCards, const QList<KCard*> & newCards )
{
return isAlternateColorDescending( newCards )
&& ( oldCards.isEmpty()
|| ( newCards.first()->color() == alternateColor( oldCards.last()->color() )
&& newCards.first()->rank() == oldCards.last()->rank() - 1 ) );
}
bool checkAddAlternateColorDescendingFromKing( const QList<KCard*> & oldCards, const QList<KCard*> & newCards )
{
if ( !isAlternateColorDescending( newCards ) )
return false;
if ( oldCards.isEmpty() )
return newCards.first()->rank() == KCardDeck::King;
else
return newCards.first()->color() == alternateColor( oldCards.last()->color() )
&& newCards.first()->rank() == oldCards.last()->rank() - 1;
}