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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
+import "../exampleslauncher/content" as UI
+
+Rectangle {
+ width: 360
+ height: 540
+ ParticleSystem { id: particles }
+ ImageParticle {
+ system: particles
+ sprites: Sprite {
+ name: "snow"
+ source: "../images/snowflake.png"
+ frames: 51
+ frameDuration: 40
+ frameDurationVariation: 8
+ }
+ }
+
+ Wander {
+ id: wanderer
+ system: particles
+ anchors.fill: parent
+ xVariance: 360/(wanderer.affectedParameter+1);
+ pace: 100*(wanderer.affectedParameter+1);
+ }
+
+ Emitter {
+ system: particles
+ emitRate: 20
+ lifeSpan: 7000
+ speed: 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
+ UI.Button {
+ text:"dx/dt"
+ onClicked: wanderer.affectedParameter = Wander.Position;
+ }
+ UI.Button {
+ text:"dv/dt"
+ onClicked: wanderer.affectedParameter = Wander.Velocity;
+ }
+ UI.Button {
+ text:"da/dt"
+ onClicked: wanderer.affectedParameter = Wander.Acceleration;
+ }
+ }
+}