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Diffstat (limited to 'kbattleship/kbattleship/kbdiagonalwrapstrategy.cpp')
| -rw-r--r-- | kbattleship/kbattleship/kbdiagonalwrapstrategy.cpp | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/kbattleship/kbattleship/kbdiagonalwrapstrategy.cpp b/kbattleship/kbattleship/kbdiagonalwrapstrategy.cpp new file mode 100644 index 00000000..7f88fb54 --- /dev/null +++ b/kbattleship/kbattleship/kbdiagonalwrapstrategy.cpp @@ -0,0 +1,320 @@ +/*************************************************************************** + kbdiagonalwrapstrategy.cpp + ---------- + Developers: (c) 2001 Kevin Krammer <kevin.krammer@gmx.at> + + ***************************************************************************/ + +/*************************************************************************** + * * + * 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. * + * * + ***************************************************************************/ + +#include <krandomsequence.h> +#include "kbdiagonalwrapstrategy.h" + +KBDiagonalWrapStrategy::KBDiagonalWrapStrategy(KBStrategy *parent) : KBStrategy(parent) +{ + m_child = new KBDiagonalShotStrategy(this); + + if(parent == 0) + { + m_destroyer = new KBDestroyShipStrategy(this); + m_destroying = false; + } + else + { + m_destroyer = 0; + m_destroying = false; + } +} + +KBDiagonalWrapStrategy::~KBDiagonalWrapStrategy() +{ + delete m_child; + delete m_destroyer; +} + +void KBDiagonalWrapStrategy::init(KBattleField *field, const QRect &field_rect) +{ + KBStrategy::init(field, field_rect); + KRandomSequence rand; + + m_column = (int) rand.getLong(m_fieldRect.width()); + m_row = (int) rand.getLong(m_fieldRect.height()); + + switch(rand.getLong(4)) + { + case 0: + m_direction = KBDiagonalShotStrategy::RIGHTDOWN; + m_row = 0; + break; + + case 1: + m_direction = KBDiagonalShotStrategy::RIGHTUP; + m_column = 0; + break; + + case 2: + m_direction = KBDiagonalShotStrategy::LEFTDOWN; + m_column = m_fieldRect.width() - 1; + break; + + default: + m_direction = KBDiagonalShotStrategy::LEFTUP; + m_row = m_fieldRect.height() - 1; + break; + } + + m_child->init(field, field_rect); + m_child->startAt(m_column, m_row, m_direction); + + m_start = QPoint(m_column, m_row); + + if(m_destroyer != 0) + m_destroyer->init(field, field_rect); +} + +const QPoint KBDiagonalWrapStrategy::nextShot() +{ + if(hasMoreShots()) + { + if(m_destroying) + return m_destroyer->nextShot(); + else if(m_child != 0) + return m_child->nextShot(); + } + + return m_start; +} + +bool KBDiagonalWrapStrategy::advance() +{ + switch(m_direction) + { + case KBDiagonalShotStrategy::RIGHTDOWN: + if(!advanceRightDown()) + return false; + break; + + case KBDiagonalShotStrategy::RIGHTUP: + if(!advanceRightUp()) + return false; + break; + + case KBDiagonalShotStrategy::LEFTDOWN: + if(!advanceLeftDown()) + return false; + break; + + case KBDiagonalShotStrategy::LEFTUP: + if(!advanceLeftUp()) + return false; + break; + + default: + break; + } + + return true; +} + +bool KBDiagonalWrapStrategy::hasMoreShots() +{ + if(m_parent == 0 && !m_destroying && m_prevShots.count() > 0) + { + QPoint pos = m_prevShots.last(); + int state = m_battleField->ownState(pos.x(), pos.y()); + if(state == KBattleField::HIT) + { + m_destroying = true; + m_destroyer->destroyShipAt(pos); + } + } + + if(m_destroying) + { + if(m_destroyer->hasMoreShots()) + return true; + else + m_destroying = false; + } + + if(!m_child->hasMoreShots()) + return advance(); + + return true; +} + +void KBDiagonalWrapStrategy::shotAt(const QPoint &pos) +{ + m_prevShots.append(pos); + + if(m_child != 0) + m_child->shotAt(pos); +} + +bool KBDiagonalWrapStrategy::advanceRightDown() +{ + int col; + + if(m_column == 0 && m_row != 0) + { + // start next + m_row = 0; + m_column = (m_start.x() + 3) % m_fieldRect.width(); + m_child->startAt(m_column, m_row, m_direction); + + if(!m_child->hasMoreShots()) + { + col = 0; + m_child->startAt(col, m_row, m_direction); + while(!m_child->hasMoreShots()) + { + col++; + if(col >= m_fieldRect.width()) + return false; + + m_child->startAt(col, m_row, m_direction); + } + m_column = col; + } + m_start = QPoint(m_column, m_row); + } + else + { + //wrap; + m_column = 0; + m_row = m_child->endPoint().y(); + + m_child->startAt(m_column, m_row, m_direction); + } + + return true; +} + +bool KBDiagonalWrapStrategy::advanceRightUp() +{ + int row; + + if(m_row == (m_fieldRect.height() - 1) && m_column != 0) + { + // start next + m_column = 0; + m_row = m_start.y() - 3; + m_row = m_row < 0 ? m_row + m_fieldRect.height() : m_row; + + m_child->startAt(m_column, m_row, m_direction); + + if(!m_child->hasMoreShots()) + { + row = m_fieldRect.height() - 1; + m_child->startAt(m_column, row, m_direction); + while(!m_child->hasMoreShots()) + { + row--; + if(row < 0) + return false; + + m_child->startAt(m_column, row, m_direction); + } + m_row = row; + } + m_start = QPoint(m_column, m_row); + } + else + { + //wrap; + m_row = m_fieldRect.height() - 1; + m_column = m_child->endPoint().x(); + + m_child->startAt(m_column, m_row, m_direction); + } + + return true; +} + +bool KBDiagonalWrapStrategy::advanceLeftDown() +{ + int row; + + if(m_row == 0 && m_column != (m_fieldRect.width()-1)) + { + // start next + m_column = m_fieldRect.width() - 1; + m_row = (m_start.y() + 3) % m_fieldRect.height(); + + m_child->startAt(m_column, m_row, m_direction); + + if(!m_child->hasMoreShots()) + { + row = 0; + m_child->startAt(m_column, row, m_direction); + while(!m_child->hasMoreShots()) + { + row++; + if(row >= m_fieldRect.height()) + return false; + + m_child->startAt(m_column, row, m_direction); + } + m_row = row; + } + m_start = QPoint(m_column, m_row); + } + else + { + //wrap; + m_row = 0; + m_column = m_child->endPoint().x(); + + m_child->startAt(m_column, m_row, m_direction); + } + + return true; +} + +bool KBDiagonalWrapStrategy::advanceLeftUp() +{ + int col; + + if(m_column == (m_fieldRect.width()-1) && m_row != (m_fieldRect.height()-1)) + { + // start next + m_row = m_fieldRect.height() - 1; + m_column = m_start.x() - 3; + m_column = m_column < 0 ? m_column + m_fieldRect.width() : m_column; + + m_child->startAt(m_column, m_row, m_direction); + + if(!m_child->hasMoreShots()) + { + col = m_fieldRect.width() - 1; + m_child->startAt(col, m_row, m_direction); + while(!m_child->hasMoreShots()) + { + col--; + if(col < 0) + return false; + + m_child->startAt(col, m_row, m_direction); + } + m_column = col; + } + m_start = QPoint(m_column, m_row); + } + else + { + //wrap; + m_column = m_fieldRect.width() - 1; + m_row = m_child->endPoint().y(); + + m_child->startAt(m_column, m_row, m_direction); + } + + return true; +} |