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Diffstat (limited to 'examples/quick/particles/affectors/content/customaffector.qml')
| -rw-r--r-- | examples/quick/particles/affectors/content/customaffector.qml | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/examples/quick/particles/affectors/content/customaffector.qml b/examples/quick/particles/affectors/content/customaffector.qml new file mode 100644 index 0000000000..157bf6afc1 --- /dev/null +++ b/examples/quick/particles/affectors/content/customaffector.qml @@ -0,0 +1,167 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** 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 Digia Plc 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 + +Item { + width: 360 + height: 600 + + Image { + source: "../../images/backgroundLeaves.jpg" + anchors.fill: parent + } + ParticleSystem { + anchors.fill: parent + Emitter { + width: parent.width + emitRate: 4 + lifeSpan: 14000 + size: 80 + velocity: PointDirection { y: 60 } + } + Wander { + anchors.fill: parent + anchors.bottomMargin: 100 + xVariance: 60 + pace: 60 + } + + //! [0] + Affector { + property real coefficient: 0.1 + property real velocity: 1.5 + width: parent.width + height: parent.height - 100 + onAffectParticles: { + /* //Linear movement + if (particle.r == 0) { + particle.r = Math.random() > 0.5 ? -1 : 1; + } else if (particle.r == 1) { + particle.rotation += velocity * dt; + if (particle.rotation >= maxAngle) + particle.r = -1; + } else if (particle.r == -1) { + particle.rotation -= velocity * dt; + if (particle.rotation <= -1 * maxAngle) + particle.r = 1; + } + */ + //Wobbly movement + for (var i=0; i<particles.length; i++) { + var particle = particles[i]; + if (particle.r == 0.0) { + particle.r = Math.random() + 0.01; + } + particle.rotation += velocity * particle.r * dt; + particle.r -= particle.rotation * coefficient; + if (particle.r == 0.0) + particle.r -= particle.rotation * 0.000001; + particle.update = 1; + } + } + } + //! [0] + + //! [1] + Affector {//Custom Friction, adds some 'randomness' + x: -60 + width: parent.width + 120 + height: 100 + anchors.bottom: parent.bottom + onAffectParticles: { + for (var i=0; i<particles.length; i++) { + var particle = particles[i]; + var pseudoRand = (Math.floor(particle.t*1327) % 10) + 1; + var yslow = dt * pseudoRand * 0.5 + 1; + var xslow = dt * pseudoRand * 0.05 + 1; + if (particle.vy < 1) + particle.vy = 0; + else + particle.vy = (particle.vy / yslow); + if (particle.vx < 1) + particle.vx = 0; + else + particle.vx = (particle.vx / xslow); + particle.update = true; + } + } + } + //! [1] + + ImageParticle { + anchors.fill: parent + id: particles + sprites: [Sprite { + source: "../../images/realLeaf1.png" + frameCount: 1 + frameDuration: 1 + to: {"a":1, "b":1, "c":1, "d":1} + }, Sprite { + name: "a" + source: "../../images/realLeaf1.png" + frameCount: 1 + frameDuration: 10000 + }, + Sprite { + name: "b" + source: "../../images/realLeaf2.png" + frameCount: 1 + frameDuration: 10000 + }, + Sprite { + name: "c" + source: "../../images/realLeaf3.png" + frameCount: 1 + frameDuration: 10000 + }, + Sprite { + name: "d" + source: "../../images/realLeaf4.png" + frameCount: 1 + frameDuration: 10000 + } + ] + + z:4 + } + } +} |