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Diffstat (limited to 'examples/statemachine/tankgame/gameitem.cpp')
| -rw-r--r-- | examples/statemachine/tankgame/gameitem.cpp | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/examples/statemachine/tankgame/gameitem.cpp b/examples/statemachine/tankgame/gameitem.cpp deleted file mode 100644 index 94affb4..0000000 --- a/examples/statemachine/tankgame/gameitem.cpp +++ /dev/null @@ -1,129 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain -** additional rights. These rights are described in the Nokia Qt LGPL -** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this -** package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** If you are unsure which license is appropriate for your use, please -** contact the sales department at http://www.qtsoftware.com/contact. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "gameitem.h" - -#include <QGraphicsScene> -#include <QDebug> - -GameItem::GameItem(QObject *parent) : QObject(parent) -{ -} - -QPointF GameItem::tryMove(const QPointF &requestedPosition, QLineF *collidedLine, - QGraphicsItem **collidedItem) const -{ - QLineF movementPath(pos(), requestedPosition); - - qreal cannonLength = 0.0; - { - QPointF p1 = boundingRect().center(); - QPointF p2 = QPointF(boundingRect().right() + 10.0, p1.y()); - - cannonLength = QLineF(mapToScene(p1), mapToScene(p2)).length(); - } - - movementPath.setLength(movementPath.length() + cannonLength); - - QRectF boundingRectPath(QPointF(qMin(movementPath.x1(), movementPath.x2()), qMin(movementPath.y1(), movementPath.y2())), - QPointF(qMax(movementPath.x1(), movementPath.x2()), qMax(movementPath.y1(), movementPath.y2()))); - - QList<QGraphicsItem *> itemsInRect = scene()->items(boundingRectPath, Qt::IntersectsItemBoundingRect); - - QPointF nextPoint = requestedPosition; - QRectF sceneRect = scene()->sceneRect(); - - foreach (QGraphicsItem *item, itemsInRect) { - if (item == static_cast<const QGraphicsItem *>(this)) - continue; - - QPolygonF mappedBoundingRect = item->mapToScene(item->boundingRect()); - for (int i=0; i<mappedBoundingRect.size(); ++i) { - QPointF p1 = mappedBoundingRect.at(i == 0 ? mappedBoundingRect.size()-1 : i-1); - QPointF p2 = mappedBoundingRect.at(i); - - QLineF rectLine(p1, p2); - QPointF intersectionPoint; - QLineF::IntersectType intersectType = movementPath.intersect(rectLine, &intersectionPoint); - - if (intersectType == QLineF::BoundedIntersection) { - movementPath.setP2(intersectionPoint); - movementPath.setLength(movementPath.length() - cannonLength); - nextPoint = movementPath.p2(); - - if (collidedLine != 0) - *collidedLine = rectLine; - - if (collidedItem != 0) - *collidedItem = item; - } - } - } - - - // Don't go outside of map - if (nextPoint.x() < sceneRect.left()) { - nextPoint.rx() = sceneRect.left(); - if (collidedLine != 0) - *collidedLine = QLineF(scene()->sceneRect().topLeft(), scene()->sceneRect().bottomLeft()); - } - - if (nextPoint.x() > sceneRect.right()) { - nextPoint.rx() = sceneRect.right(); - if (collidedLine != 0) - *collidedLine = QLineF(scene()->sceneRect().topRight(), scene()->sceneRect().bottomRight()); - } - - if (nextPoint.y() < sceneRect.top()) { - nextPoint.ry() = sceneRect.top(); - if (collidedLine != 0) - *collidedLine = QLineF(scene()->sceneRect().topLeft(), scene()->sceneRect().topRight()); - } - - if (nextPoint.y() > sceneRect.bottom()) { - nextPoint.ry() = sceneRect.bottom(); - if (collidedLine != 0) - *collidedLine = QLineF(scene()->sceneRect().bottomLeft(), scene()->sceneRect().bottomRight()); - } - - return nextPoint; -} - |