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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the examples 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."
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.0
import QtQuick.Particles 2.0
ParticleSystem {
id: sys
width: 360
height: 600
running: true
Rectangle {
z: -1
anchors.fill: parent
color: "black"
}
property real petalLength: 180
property real petalRotation: 0
NumberAnimation on petalRotation {
from: 0;
to: 360;
loops: -1;
running: true
duration: 24000
}
function convert(a) {return a*(Math.PI/180);}
Emitter {
lifeSpan: 4000
emitRate: 120
size: 12
anchors.centerIn: parent
onEmitParticles: {
for (var i=0; i<particles.length; i++) {
var particle = particles[i];
particle.startSize = Math.max(02,Math.min(492,Math.tan(particle.t/2)*24));
var theta = Math.floor(Math.random() * 6.0) / 6.0;
theta *= 2.0*Math.PI;
theta += sys.convert(sys.petalRotation);
particle.initialVX = petalLength * Math.cos(theta);
particle.initialVY = petalLength * Math.sin(theta);
particle.initialAX = particle.initialVX * -0.5;
particle.initialAY = particle.initialVY * -0.5;
}
}
}
ImageParticle {
source: "../images/particle4.png"
alpha: 0.0
redVariation: 0.6
color: "white"
}
}
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