110 lines
3.2 KiB
QML
110 lines
3.2 KiB
QML
// Copyright (C) 2021 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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import QtQuick
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import QtQuick.Particles
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Item {
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width: 360
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height: 600
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Image {
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source: "images/backgroundLeaves.jpg"
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anchors.fill: parent
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}
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ParticleSystem {
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anchors.fill: parent
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Emitter {
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width: parent.width
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emitRate: 4
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lifeSpan: 14000
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size: 80
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velocity: PointDirection { y: 60 }
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}
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Wander {
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anchors.fill: parent
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anchors.bottomMargin: 100
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xVariance: 60
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pace: 60
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}
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//! [0]
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Affector {
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width: parent.width
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height: parent.height - 100
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onAffectParticles: (particles, dt) => {
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//Wobbly movement
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for (var i=0; i<particles.length; i++) {
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var particle = particles[i];
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particle.rotation += particle.vx * 0.15 * dt;
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particle.update = true;
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}
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}
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}
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//! [0]
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//! [1]
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Affector {//Custom Friction, adds some 'randomness'
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x: -60
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width: parent.width + 120
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height: 100
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anchors.bottom: parent.bottom
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onAffectParticles: (particles, dt) => {
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for (var i=0; i<particles.length; i++) {
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var particle = particles[i];
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var pseudoRand = (Math.floor(particle.t*1327) % 10) + 1;
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var yslow = dt * pseudoRand * 0.5 + 1;
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var xslow = dt * pseudoRand * 0.05 + 1;
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if (particle.vy < 1)
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particle.vy = 0;
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else
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particle.vy = (particle.vy / yslow);
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if (particle.vx < 1)
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particle.vx = 0;
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else
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particle.vx = (particle.vx / xslow);
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particle.update = true;
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}
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}
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}
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//! [1]
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ImageParticle {
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anchors.fill: parent
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id: particles
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sprites: [Sprite {
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source: "images/realLeaf1.png"
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frameCount: 1
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frameDuration: 1
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to: {"a":1, "b":1, "c":1, "d":1}
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}, Sprite {
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name: "a"
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source: "images/realLeaf1.png"
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frameCount: 1
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frameDuration: 10000
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},
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Sprite {
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name: "b"
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source: "images/realLeaf2.png"
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frameCount: 1
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frameDuration: 10000
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},
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Sprite {
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name: "c"
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source: "images/realLeaf3.png"
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frameCount: 1
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frameDuration: 10000
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},
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Sprite {
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name: "d"
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source: "images/realLeaf4.png"
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frameCount: 1
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frameDuration: 10000
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}
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]
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z:4
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}
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}
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}
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