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39 | |
40 | #ifndef PARTICLEAFFECTOR_H |
41 | #define PARTICLEAFFECTOR_H |
42 | |
43 | // |
44 | // W A R N I N G |
45 | // ------------- |
46 | // |
47 | // This file is not part of the Qt API. It exists purely as an |
48 | // implementation detail. This header file may change from version to |
49 | // version without notice, or even be removed. |
50 | // |
51 | // We mean it. |
52 | // |
53 | |
54 | #include <QObject> |
55 | #include "qquickparticlesystem_p.h" |
56 | #include "qquickparticleextruder_p.h" |
57 | #include "qtquickparticlesglobal_p.h" |
58 | #include "qquickparticleflatset_p.h" |
59 | |
60 | QT_BEGIN_NAMESPACE |
61 | |
62 | class Q_QUICKPARTICLES_PRIVATE_EXPORT QQuickParticleAffector : public QQuickItem |
63 | { |
64 | Q_OBJECT |
65 | Q_PROPERTY(QQuickParticleSystem* system READ system WRITE setSystem NOTIFY systemChanged) |
66 | Q_PROPERTY(QStringList groups READ groups WRITE setGroups NOTIFY groupsChanged) |
67 | Q_PROPERTY(QStringList whenCollidingWith READ whenCollidingWith WRITE setWhenCollidingWith NOTIFY whenCollidingWithChanged) |
68 | Q_PROPERTY(bool enabled READ enabled WRITE setEnabled NOTIFY enabledChanged) |
69 | Q_PROPERTY(bool once READ onceOff WRITE setOnceOff NOTIFY onceChanged) |
70 | Q_PROPERTY(QQuickParticleExtruder* shape READ shape WRITE setShape NOTIFY shapeChanged) |
71 | |
72 | QML_NAMED_ELEMENT(ParticleAffector) |
73 | QML_UNCREATABLE("Abstract type. Use one of the inheriting types instead." ) |
74 | |
75 | public: |
76 | explicit QQuickParticleAffector(QQuickItem *parent = 0); |
77 | virtual void affectSystem(qreal dt); |
78 | virtual void reset(QQuickParticleData*);//As some store their own data per particle? |
79 | QQuickParticleSystem* system() const |
80 | { |
81 | return m_system; |
82 | } |
83 | |
84 | QStringList groups() const |
85 | { |
86 | return m_groups; |
87 | } |
88 | |
89 | bool enabled() const |
90 | { |
91 | return m_enabled; |
92 | } |
93 | |
94 | bool onceOff() const |
95 | { |
96 | return m_onceOff; |
97 | } |
98 | |
99 | QQuickParticleExtruder* shape() const |
100 | { |
101 | return m_shape; |
102 | } |
103 | |
104 | QStringList whenCollidingWith() const |
105 | { |
106 | return m_whenCollidingWith; |
107 | } |
108 | |
109 | Q_SIGNALS: |
110 | |
111 | void systemChanged(QQuickParticleSystem* arg); |
112 | |
113 | void groupsChanged(const QStringList &arg); |
114 | |
115 | void enabledChanged(bool arg); |
116 | |
117 | void onceChanged(bool arg); |
118 | |
119 | void shapeChanged(QQuickParticleExtruder* arg); |
120 | |
121 | void affected(qreal x, qreal y); |
122 | |
123 | void whenCollidingWithChanged(const QStringList &arg); |
124 | |
125 | public Q_SLOTS: |
126 | void setSystem(QQuickParticleSystem* arg) |
127 | { |
128 | if (m_system != arg) { |
129 | m_system = arg; |
130 | m_system->registerParticleAffector(a: this); |
131 | Q_EMIT systemChanged(arg); |
132 | } |
133 | } |
134 | |
135 | void setGroups(const QStringList &arg) |
136 | { |
137 | if (m_groups != arg) { |
138 | m_groups = arg; |
139 | m_updateIntSet = true; |
140 | Q_EMIT groupsChanged(arg); |
141 | } |
142 | } |
143 | |
144 | void setEnabled(bool arg) |
145 | { |
146 | if (m_enabled != arg) { |
147 | m_enabled = arg; |
148 | Q_EMIT enabledChanged(arg); |
149 | } |
150 | } |
151 | |
152 | void setOnceOff(bool arg) |
153 | { |
154 | if (m_onceOff != arg) { |
155 | m_onceOff = arg; |
156 | m_needsReset = true; |
157 | Q_EMIT onceChanged(arg); |
158 | } |
159 | } |
160 | |
161 | void setShape(QQuickParticleExtruder* arg) |
162 | { |
163 | if (m_shape != arg) { |
164 | m_shape = arg; |
165 | Q_EMIT shapeChanged(arg); |
166 | } |
167 | } |
168 | |
169 | void setWhenCollidingWith(const QStringList &arg) |
170 | { |
171 | if (m_whenCollidingWith != arg) { |
172 | m_whenCollidingWith = arg; |
173 | Q_EMIT whenCollidingWithChanged(arg); |
174 | } |
175 | } |
176 | public Q_SLOTS: |
177 | void updateOffsets(); |
178 | |
179 | protected: |
180 | friend class QQuickParticleSystem; |
181 | virtual bool affectParticle(QQuickParticleData *d, qreal dt); |
182 | bool m_needsReset:1;//### What is this really saving? |
183 | bool m_ignoresTime:1; |
184 | bool m_onceOff:1; |
185 | bool m_enabled:1; |
186 | |
187 | QQuickParticleSystem* m_system; |
188 | QStringList m_groups; |
189 | bool activeGroup(int g); |
190 | bool shouldAffect(QQuickParticleData* datum);//Call to do the logic on whether it is affecting that datum |
191 | void postAffect(QQuickParticleData* datum);//Call to do the post-affect logic on particles which WERE affected(once off, needs reset, affected signal) |
192 | void componentComplete() override; |
193 | bool isAffectedConnected(); |
194 | static const qreal simulationDelta; |
195 | static const qreal simulationCutoff; |
196 | |
197 | QPointF m_offset; |
198 | QtQuickParticlesPrivate::QFlatSet<QPair<int, int>> m_onceOffed; |
199 | private: |
200 | QSet<int> m_groupIds; |
201 | bool m_updateIntSet; |
202 | |
203 | QQuickParticleExtruder* m_shape; |
204 | |
205 | QStringList m_whenCollidingWith; |
206 | |
207 | bool isColliding(QQuickParticleData* d) const; |
208 | }; |
209 | |
210 | QT_END_NAMESPACE |
211 | #endif // PARTICLEAFFECTOR_H |
212 | |