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Diffstat (limited to 'src/imports/particles/spriteengine.h')
-rw-r--r-- | src/imports/particles/spriteengine.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/imports/particles/spriteengine.h b/src/imports/particles/spriteengine.h new file mode 100644 index 0000000000..76a2e29745 --- /dev/null +++ b/src/imports/particles/spriteengine.h @@ -0,0 +1,155 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Declarative module 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 Technology Preview License Agreement accompanying +** this package. +** +** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef SPRITEENGINE_H +#define SPRITEENGINE_H + +#include <QObject> +#include <QVector> +#include <QTimer> +#include <QTime> +#include <QList> +#include <QDeclarativeListProperty> +#include <QImage> +#include <QPair> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) + +class SpriteState; + +class SpriteEngine : public QObject +{ + Q_OBJECT + //TODO: Optimize single sprite case + Q_PROPERTY(QDeclarativeListProperty<SpriteState> sprites READ sprites) + Q_PROPERTY(QString globalGoal READ globalGoal WRITE setGlobalGoal NOTIFY globalGoalChanged) +public: + explicit SpriteEngine(QObject *parent = 0); + SpriteEngine(QList<SpriteState*> sprites, QObject *parent=0); + ~SpriteEngine(); + + QDeclarativeListProperty<SpriteState> sprites() + { + return QDeclarativeListProperty<SpriteState>(this, m_states); + } + QString globalGoal() const + { + return m_globalGoal; + } + + int count() const {return m_sprites.count();} + void setCount(int c); + + int spriteState(int sprite=0) {return m_sprites[sprite];} + int spriteStart(int sprite=0) {return m_startTimes[sprite];} + int stateIndex(SpriteState* s){return m_states.indexOf(s);} + SpriteState* state(int idx){return m_states[idx];} + int stateCount() {return m_states.count();} + int maxFrames(); + + void setGoal(int state, int sprite=0, bool jump=false); + QImage assembledImage(); + + void startSprite(int index=0); + +signals: + + void globalGoalChanged(QString arg); + +public slots: + void setGlobalGoal(QString arg) + { + if (m_globalGoal != arg) { + m_globalGoal = arg; + emit globalGoalChanged(arg); + } + } + + uint updateSprites(uint time); + +private: + void restartSprite(int sprite); + void addToUpdateList(uint t, int idx); + int goalSeek(int curState, int spriteIdx, int dist=-1); + QList<SpriteState*> m_states; + QVector<int> m_sprites;//int is the index in m_states of the current state + QVector<int> m_goals; + QVector<int> m_startTimes; + QList<QPair<uint, QList<int> > > m_stateUpdates;//### This could be done faster + + QTime m_advanceTime; + uint m_timeOffset; + QString m_globalGoal; + int m_maxFrames; +}; + +//Common use is to have your own list property which is transparently an engine +inline void spriteAppend(QDeclarativeListProperty<SpriteState> *p, SpriteState* s) +{ + reinterpret_cast<QList<SpriteState *> *>(p->data)->append(s); + p->object->metaObject()->invokeMethod(p->object, "createEngine"); +} + +inline SpriteState* spriteAt(QDeclarativeListProperty<SpriteState> *p, int idx) +{ + return reinterpret_cast<QList<SpriteState *> *>(p->data)->at(idx); +} + +inline void spriteClear(QDeclarativeListProperty<SpriteState> *p) +{ + reinterpret_cast<QList<SpriteState *> *>(p->data)->clear(); + p->object->metaObject()->invokeMethod(p->object, "createEngine"); +} + +inline int spriteCount(QDeclarativeListProperty<SpriteState> *p) +{ + return reinterpret_cast<QList<SpriteState *> *>(p->data)->count(); +} + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // SPRITEENGINE_H |