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111 lines
2.4 KiB
111 lines
2.4 KiB
/***************************************************************************
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kbdiagonalshotstrategy.cpp
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----------
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Developers: (c) 2001 Kevin Krammer <kevin.krammer@gmx.at>
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***************************************************************************/
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/***************************************************************************
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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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***************************************************************************/
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#include "kbdiagonalshotstrategy.h"
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KBDiagonalShotStrategy::KBDiagonalShotStrategy(KBStrategy *tqparent) : KBStrategy(tqparent)
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{
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m_column = 0;
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m_row = 0;
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m_vertical = 0;
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m_horizontal = 0;
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}
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const TQPoint KBDiagonalShotStrategy::nextShot()
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{
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if(hasMoreShots())
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return TQPoint(m_column, m_row);
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return TQPoint(0,0);
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}
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bool KBDiagonalShotStrategy::advance()
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{
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while (m_fieldRect.contains(m_column, m_row))
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{
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if(enemyFieldStateAt(m_column, m_row) != KBStrategy::SHOT)
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return true;
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m_column += m_horizontal;
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m_row += m_vertical;
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}
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return false;
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}
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bool KBDiagonalShotStrategy::hasMoreShots()
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{
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return advance();
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}
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void KBDiagonalShotStrategy::shotAt(const TQPoint &pos)
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{
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m_prevShots.append(pos);
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}
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void KBDiagonalShotStrategy::startAt(int col, int row, Direction dir)
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{
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m_column = col;
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m_row = row;
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switch(dir)
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{
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case LEFTUP:
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m_vertical = -1;
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m_horizontal = -1;
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break;
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case LEFTDOWN:
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m_vertical = 1;
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m_horizontal = -1;
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break;
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case RIGHTUP:
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m_vertical = -1;
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m_horizontal = 1;
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break;
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case RIGHTDOWN:
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m_vertical = 1;
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m_horizontal = 1;
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break;
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default:
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m_vertical = 0;
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m_horizontal = 0;
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break;
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}
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}
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TQPoint KBDiagonalShotStrategy::endPoint()
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{
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int row = m_row;
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int col = m_column;
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if(m_vertical == 0 || m_horizontal == 0)
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return TQPoint(col, row);
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while(m_fieldRect.contains(col, row))
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{
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row += m_vertical;
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col += m_horizontal;
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}
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row -= m_vertical;
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col -= m_horizontal;
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return TQPoint(col, row);
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}
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