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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import QtQuick
import QtQuick.Particles
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 {
width: parent.width
height: parent.height - 100
onAffectParticles: (particles, dt) => {
//Wobbly movement
for (var i=0; i<particles.length; i++) {
var particle = particles[i];
particle.rotation += particle.vx * 0.15 * dt;
particle.update = true;
}
}
}
//! [0]
//! [1]
Affector {//Custom Friction, adds some 'randomness'
x: -60
width: parent.width + 120
height: 100
anchors.bottom: parent.bottom
onAffectParticles: (particles, dt) => {
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
}
}
}
|
