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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import QtQuick
import QtQuick.Particles
Rectangle {
width: 360
height: 540
ParticleSystem { id: particles }
ImageParticle {
system: particles
sprites: Sprite {
name: "snow"
source: "images/snowflake.png"
frameCount: 51
frameDuration: 40
frameDurationVariation: 8
}
}
//! [0]
Wander {
id: wanderer
system: particles
anchors.fill: parent
xVariance: 360/(wanderer.affectedParameter+1);
pace: 100*(wanderer.affectedParameter+1);
}
//! [0]
Emitter {
system: particles
emitRate: 20
lifeSpan: 7000
velocity: PointDirection { y:80; yVariation: 40; }
acceleration: PointDirection { y: 4 }
size: 20
sizeVariation: 10
width: parent.width
height: 100
}
Row {
anchors.bottom: parent.bottom
anchors.horizontalCenter: parent.horizontalCenter
spacing: 4
GreyButton {
text: qsTr("dx/dt")
onClicked: wanderer.affectedParameter = Wander.Position;
}
GreyButton {
text: qsTr("dv/dt")
onClicked: wanderer.affectedParameter = Wander.Velocity;
}
GreyButton {
text: qsTr("da/dt")
onClicked: wanderer.affectedParameter = Wander.Acceleration;
}
}
}
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