Qt 6.x
The Qt SDK
•All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Properties Friends Macros Pages
qquick3dparticleemitter_p.h
Go to the documentation of this file.
1// Copyright (C) 2021 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
3
4#ifndef QQUICK3DPARTICLEEMITTER_H
5#define QQUICK3DPARTICLEEMITTER_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include <QtQuick3D/private/qquick3dnode_p.h>
19#include <QtQuick3DParticles/private/qquick3dparticledirection_p.h>
20#include <QtQuick3DParticles/private/qquick3dparticlesystem_p.h>
21#include <QtQuick3DParticles/private/qquick3dparticlemodelparticle_p.h>
22#include <QtQuick3DParticles/private/qquick3dparticleabstractshape_p.h>
23#include <QtQuick3DParticles/private/qquick3dparticleemitburst_p.h>
24#include <QtQuick3DParticles/private/qquick3dparticledynamicburst_p.h>
25
26QT_BEGIN_NAMESPACE
27
28class Q_QUICK3DPARTICLES_EXPORT QQuick3DParticleEmitter : public QQuick3DNode
29{
30 Q_OBJECT
31 Q_PROPERTY(QQuick3DParticleSystem *system READ system WRITE setSystem NOTIFY systemChanged)
32 Q_PROPERTY(QQmlListProperty<QQuick3DParticleEmitBurst> emitBursts READ emitBursts)
33 Q_PROPERTY(QQuick3DParticleDirection *velocity READ velocity WRITE setVelocity NOTIFY velocityChanged)
34 Q_PROPERTY(QQuick3DParticle *particle READ particle WRITE setParticle NOTIFY particleChanged)
35 Q_PROPERTY(bool enabled READ enabled WRITE setEnabled NOTIFY enabledChanged)
36 Q_PROPERTY(QQuick3DParticleAbstractShape *shape READ shape WRITE setShape NOTIFY shapeChanged)
37 Q_PROPERTY(float emitRate READ emitRate WRITE setEmitRate NOTIFY emitRateChanged)
38 Q_PROPERTY(int lifeSpan READ lifeSpan WRITE setLifeSpan NOTIFY lifeSpanChanged)
39 Q_PROPERTY(int lifeSpanVariation READ lifeSpanVariation WRITE setLifeSpanVariation NOTIFY lifeSpanVariationChanged)
40 Q_PROPERTY(float particleScale READ particleScale WRITE setParticleScale NOTIFY particleScaleChanged)
41 Q_PROPERTY(float particleEndScale READ particleEndScale WRITE setParticleEndScale NOTIFY particleEndScaleChanged)
42 Q_PROPERTY(float particleScaleVariation READ particleScaleVariation WRITE setParticleScaleVariation NOTIFY particleScaleVariationChanged)
43 Q_PROPERTY(float particleEndScaleVariation READ particleEndScaleVariation WRITE setParticleEndScaleVariation NOTIFY particleEndScaleVariationChanged)
44 Q_PROPERTY(QVector3D particleRotation READ particleRotation WRITE setParticleRotation NOTIFY particleRotationChanged)
45 Q_PROPERTY(QVector3D particleRotationVariation READ particleRotationVariation WRITE setParticleRotationVariation NOTIFY particleRotationVariationChanged)
46 Q_PROPERTY(QVector3D particleRotationVelocity READ particleRotationVelocity WRITE setParticleRotationVelocity NOTIFY particleRotationVelocityChanged)
47 Q_PROPERTY(QVector3D particleRotationVelocityVariation READ particleRotationVelocityVariation WRITE setParticleRotationVelocityVariation NOTIFY particleRotationVariationVelocityChanged)
48 Q_PROPERTY(float depthBias READ depthBias WRITE setDepthBias NOTIFY depthBiasChanged)
49
50 QML_NAMED_ELEMENT(ParticleEmitter3D)
51 QML_ADDED_IN_VERSION(6, 2)
52
53public:
54 QQuick3DParticleEmitter(QQuick3DNode *parent = nullptr);
55 ~QQuick3DParticleEmitter() override;
56
57 bool enabled() const;
58 QQuick3DParticleDirection *velocity() const;
59 QQuick3DParticleSystem *system() const;
60 float emitRate() const;
61 float particleScale() const;
62 float particleEndScale() const;
63 float particleScaleVariation() const;
64 float particleEndScaleVariation() const;
65 int lifeSpan() const;
66 int lifeSpanVariation() const;
67 QQuick3DParticle *particle() const;
68 QQuick3DParticleAbstractShape *shape() const;
69 QVector3D particleRotation() const;
70 QVector3D particleRotationVariation() const;
71 QVector3D particleRotationVelocity() const;
72 QVector3D particleRotationVelocityVariation() const;
73 float depthBias() const;
74
75 QQmlListProperty<QQuick3DParticleEmitBurst> emitBursts();
76
77 Q_INVOKABLE virtual void burst(int count);
78 Q_INVOKABLE virtual void burst(int count, int duration);
79 Q_INVOKABLE virtual void burst(int count, int duration, const QVector3D &position);
80
81public Q_SLOTS:
82 void setEnabled(bool enabled);
83 void setVelocity(QQuick3DParticleDirection *velocity);
84 void setSystem(QQuick3DParticleSystem *system);
85 void setEmitRate(float emitRate);
86 void setParticleScale(float particleScale);
87 void setParticleEndScale(float particleEndScale);
88 void setParticleScaleVariation(float particleScaleVariation);
89 void setParticleEndScaleVariation(float particleEndScaleVariation);
90 void setLifeSpan(int lifeSpan);
91 void setLifeSpanVariation(int lifeSpanVariation);
92 void setParticle(QQuick3DParticle *particle);
93 void setShape(QQuick3DParticleAbstractShape *shape);
94 void setParticleRotation(const QVector3D &particleRotation);
95 void setParticleRotationVariation(const QVector3D &particleRotationVariation);
96 void setParticleRotationVelocity(const QVector3D &particleRotationVelocity);
97 void setParticleRotationVelocityVariation(const QVector3D &particleRotationVelocityVariation);
98 void setDepthBias(float bias);
99
100Q_SIGNALS:
101 void velocityChanged();
102 void systemChanged();
103 void emitRateChanged();
104 void particleScaleChanged();
105 void particleEndScaleChanged();
106 void particleScaleVariationChanged();
107 void particleEndScaleVariationChanged();
108 void lifeSpanChanged();
109 void lifeSpanVariationChanged();
110 void particleChanged();
111 void shapeChanged();
112 void particleRotationChanged();
113 void particleRotationVariationChanged();
114 void particleRotationVelocityChanged();
115 void particleRotationVariationVelocityChanged();
116 void enabledChanged();
117 void depthBiasChanged();
118
119protected:
120 friend class QQuick3DParticleSystem;
121 friend class QQuick3DParticleEmitBurst;
122 friend class QQuick3DParticleTrailEmitter;
123
124 void componentComplete() override;
125 void registerEmitBurst(QQuick3DParticleEmitBurst *emitBurst);
126 void unRegisterEmitBurst(QQuick3DParticleEmitBurst *emitBurst);
127 void generateEmitBursts();
128 void emitParticle(QQuick3DParticle *particle, float startTime, const QMatrix4x4 &transform, const QQuaternion &parentRotation, const QVector3D &centerPos, int index = -1);
129 void emitParticles();
130 void emitActivationNodeParticles(QQuick3DParticleModelBlendParticle *particle);
131 void emitParticlesBurst(const QQuick3DParticleEmitBurstData &burst);
132 int getEmitAmount();
133 int getEmitAmountFromDynamicBursts(int triggerType = 0);
134
135 void reset();
136
137 // EmitBursts - list handling
138 void appendEmitBurst(QQuick3DParticleEmitBurst *);
139 qsizetype emitBurstCount() const;
140 QQuick3DParticleEmitBurst *emitBurst(qsizetype) const;
141 void clearEmitBursts();
142 void replaceEmitBurst(qsizetype, QQuick3DParticleEmitBurst *);
143 void removeLastEmitBurst();
144
145 // EmitBursts - static
146 static void appendEmitBurst(QQmlListProperty<QQuick3DParticleEmitBurst> *, QQuick3DParticleEmitBurst *);
147 static qsizetype emitBurstCount(QQmlListProperty<QQuick3DParticleEmitBurst> *);
148 static QQuick3DParticleEmitBurst *emitBurst(QQmlListProperty<QQuick3DParticleEmitBurst> *, qsizetype);
149 static void clearEmitBursts(QQmlListProperty<QQuick3DParticleEmitBurst> *);
150 static void replaceEmitBurst(QQmlListProperty<QQuick3DParticleEmitBurst> *, qsizetype, QQuick3DParticleEmitBurst *);
151 static void removeLastEmitBurst(QQmlListProperty<QQuick3DParticleEmitBurst> *);
152
153private:
154 struct BurstEmitData
155 {
156 int startTime;
157 int endTime;
158 int emitAmount;
159 int emitCounter = 0;
160 int prevBurstTime;
161 };
162 QQuick3DParticleDirection *m_velocity = nullptr;
163 QQuick3DParticleSystem *m_system = nullptr;
164 float m_emitRate = 0.0f;
165 // Time in ms when emitting last time happened
166 int m_prevEmitTime = 0;
167 // Time in ms when dynamic burst last time happened
168 int m_prevBurstTime = 0;
169 float m_particleScale = 1.0f;
170 float m_particleEndScale = -1.0f;
171 float m_particleScaleVariation = 0.0f;
172 float m_particleEndScaleVariation = -1.0f;
173 int m_lifeSpan = 1000;
174 int m_lifeSpanVariation = 0;
175 float m_unemittedF = 0.0f;
176 float m_depthBias = 0.0f;
177 QQuick3DParticle *m_particle = nullptr;
178 QQuick3DParticleAbstractShape *m_shape = nullptr;
179 QVector3D m_particleRotation;
180 QVector3D m_particleRotationVariation;
181 QVector3D m_particleRotationVelocity;
182 QVector3D m_particleRotationVelocityVariation;
183 bool m_enabled = true;
184 const QQuick3DParticleData m_clearData = {};
185 bool m_burstGenerated = false;
186 QQuick3DNode *m_systemSharedParent = nullptr;
187 // This list contains all emit bursts (both QQuick3DParticleEmitBurst and QQuick3DParticleDynamicBurst)
188 QList<QQuick3DParticleEmitBurst *> m_emitBursts;
189 QList<BurstEmitData> m_burstEmitData;
190};
191
192QT_END_NAMESPACE
193
194#endif // QQUICK3DPARTICLEEMITTER_H
QList
Definition qlist.h:74
QMatrix4x4
The QMatrix4x4 class represents a 4x4 transformation matrix in 3D space.
Definition qmatrix4x4.h:25
QQmlListProperty
The QQmlListProperty class allows applications to expose list-like properties of QObject-derived clas...
Definition qqmllist.h:24
QQuaternion
The QQuaternion class represents a quaternion consisting of a vector and scalar.
Definition qquaternion.h:21
QQuick3DNode::componentComplete
void componentComplete() override
Invoked after the root component that caused this instantiation has completed construction.
Definition qquick3dnode.cpp:522
QQuick3DParticleEmitter::particleRotationVariationChanged
void particleRotationVariationChanged()
QQuick3DParticleEmitter::particleRotationVelocityChanged
void particleRotationVelocityChanged()
QQuick3DParticleEmitter::particleScaleVariationChanged
void particleScaleVariationChanged()
QQuick3DParticleEmitter::emitBursts
QQmlListProperty< QQuick3DParticleEmitBurst > emitBursts()
QQuick3DParticleEmitter::particleEndScaleVariationChanged
void particleEndScaleVariationChanged()
QQuick3DParticleEmitter::particleRotationVariationVelocityChanged
void particleRotationVariationVelocityChanged()
QVector3D
The QVector3D class represents a vector or vertex in 3D space.
Definition qvectornd.h:171
QT_BEGIN_NAMESPACE
Combined button and popup list for selecting options.
Definition qstandardpaths_haiku.cpp:21
QT_END_NAMESPACE
Definition qsharedpointer.cpp:1545
startTime
qint64 startTime
Definition qavfsamplebufferdelegate.mm:118
index
GLuint index
[2]
Definition qopengles2ext.h:331
count
GLenum GLenum GLsizei count
Definition qopengles2ext.h:150
enabled
GLenum GLenum GLsizei const GLuint GLboolean enabled
Definition qopengles2ext.h:150
transform
GLuint GLenum GLenum transform
Definition qopenglext.h:11564
reset
GLboolean reset
Definition qopenglext.h:2748
bias
GLfloat bias
Definition qopenglext.h:7943
QML_NAMED_ELEMENT
#define QML_NAMED_ELEMENT(NAME)
Definition qqmlintegration.h:52
QML_ADDED_IN_VERSION
#define QML_ADDED_IN_VERSION(MAJOR, MINOR)
Definition qqmlintegration.h:86
position
static qreal position(const QQuickItem *item, QQuickAnchors::Anchor anchorLine)
Definition qquickanchors.cpp:66
Q_PROPERTY
#define Q_PROPERTY(...)
Definition qtmetamacros.h:56
Q_OBJECT
#define Q_OBJECT
Definition qtmetamacros.h:117
Q_INVOKABLE
#define Q_INVOKABLE
Definition qtmetamacros.h:76
Q_SLOTS
#define Q_SLOTS
Definition qtmetamacros.h:44
Q_SIGNALS
#define Q_SIGNALS
Definition qtmetamacros.h:45
qsizetype
ptrdiff_t qsizetype
Definition qtypes.h:70
enabled
#define enabled
Definition qopenglext.h:3098
parent
IUIAutomationTreeWalker __RPC__deref_out_opt IUIAutomationElement ** parent
Definition uiaclientinterfaces_p.h:209