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Diffstat (limited to 'examples/widgets/statemachine/rogue/window.cpp')
| -rw-r--r-- | examples/widgets/statemachine/rogue/window.cpp | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/examples/widgets/statemachine/rogue/window.cpp b/examples/widgets/statemachine/rogue/window.cpp new file mode 100644 index 0000000000..0c57b2c2d7 --- /dev/null +++ b/examples/widgets/statemachine/rogue/window.cpp @@ -0,0 +1,251 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtWidgets> + +#include "window.h" +#include "movementtransition.h" + +//![0] +Window::Window() +{ + pX = 5; + pY = 5; +//![0] + + QFontDatabase database; + QFont font; + if (database.families().contains("Monospace")) { + font = QFont("Monospace"); + } + else { + foreach (QString family, database.families()) { + if (database.isFixedPitch(family)) { + font = QFont(family); + break; + } + } + } + font.setPointSize(12); + setFont(font); + +//![1] + setupMap(); + buildMachine(); +} +//![1] + +void Window::setStatus(const QString &status) +{ + myStatus = status; + repaint(); +} + +QString Window::status() const +{ + return myStatus; +} + +void Window::paintEvent(QPaintEvent * /* event */) +{ + QFontMetrics metrics(font()); + QPainter painter(this); + int fontHeight = metrics.height(); + int fontWidth = metrics.width('X'); + int yPos = fontHeight; + int xPos; + + painter.fillRect(rect(), Qt::black); + painter.setPen(Qt::white); + + painter.drawText(QPoint(0, yPos), status()); + + for (int y = 0; y < HEIGHT; ++y) { + yPos += fontHeight; + xPos = 0; + + for (int x = 0; x < WIDTH; ++x) { + if (y == pY && x == pX) { + xPos += fontWidth; + continue; + } + + painter.setPen(Qt::white); + + double x1 = static_cast<double>(pX); + double y1 = static_cast<double>(pY); + double x2 = static_cast<double>(x); + double y2 = static_cast<double>(y); + + if (x2<x1) { + x2+=0.5; + } else if (x2>x1) { + x2-=0.5; + } + + if (y2<y1) { + y2+=0.5; + } else if (y2>y1) { + y2-=0.5; + } + + double dx = x2 - x1; + double dy = y2 - y1; + + double length = qSqrt(dx*dx+dy*dy); + + dx /= length; + dy /= length; + + double xi = x1; + double yi = y1; + + while (length > 0) { + int cx = static_cast<int>(xi+0.5); + int cy = static_cast<int>(yi+0.5); + + if (x2 == cx && y2 == cy) + break; + + if (!(x1==cx && y1==cy) + && (map[cx][cy] == '#' || (length-10) > 0)) { + painter.setPen(QColor(60,60,60)); + break; + } + + xi += dx; + yi += dy; + --length; + } + + painter.drawText(QPoint(xPos, yPos), map[x][y]); + xPos += fontWidth; + } + } + painter.setPen(Qt::white); + painter.drawText(QPoint(pX * fontWidth, (pY + 2) * fontHeight), QChar('@')); +} + +QSize Window::sizeHint() const +{ + QFontMetrics metrics(font()); + + return QSize(metrics.width('X') * WIDTH, metrics.height() * (HEIGHT + 1)); +} + +//![2] +void Window::buildMachine() +{ + machine = new QStateMachine; + + QState *inputState = new QState(machine); + inputState->assignProperty(this, "status", "Move the rogue with 2, 4, 6, and 8"); + + MovementTransition *transition = new MovementTransition(this); + inputState->addTransition(transition); +//![2] + +//![3] + QState *quitState = new QState(machine); + quitState->assignProperty(this, "status", "Really quit(y/n)?"); + + QKeyEventTransition *yesTransition = new + QKeyEventTransition(this, QEvent::KeyPress, Qt::Key_Y); + yesTransition->setTargetState(new QFinalState(machine)); + quitState->addTransition(yesTransition); + + QKeyEventTransition *noTransition = + new QKeyEventTransition(this, QEvent::KeyPress, Qt::Key_N); + noTransition->setTargetState(inputState); + quitState->addTransition(noTransition); +//![3] + +//![4] + QKeyEventTransition *quitTransition = + new QKeyEventTransition(this, QEvent::KeyPress, Qt::Key_Q); + quitTransition->setTargetState(quitState); + inputState->addTransition(quitTransition); +//![4] + +//![5] + machine->setInitialState(inputState); + + connect(machine, SIGNAL(finished()), qApp, SLOT(quit())); + + machine->start(); +} +//![5] + +void Window::movePlayer(Direction direction) +{ + switch (direction) { + case Left: + if (map[pX - 1][pY] != '#') + --pX; + break; + case Right: + if (map[pX + 1][pY] != '#') + ++pX; + break; + case Up: + if (map[pX][pY - 1] != '#') + --pY; + break; + case Down: + if (map[pX][pY + 1] != '#') + ++pY; + break; + } + repaint(); +} + +void Window::setupMap() +{ + qsrand(QTime(0,0,0).secsTo(QTime::currentTime())); + + for (int x = 0; x < WIDTH; ++x) + for (int y = 0; y < HEIGHT; ++y) { + if (x == 0 || x == WIDTH - 1 || y == 0 || y == HEIGHT - 1 || qrand() % 40 == 0) + map[x][y] = '#'; + else + map[x][y] = '.'; + } +} + |