import QtQuick 2.0
import QtQuick.Particles 2.0

Item {
    Rectangle {
        anchors.fill: parent
        color: "black"
    }

    ParticleSystem {
        id: partSys
        running: true
    }

    Emitter {
        id: emitter
        anchors.centerIn: parent
        system: partSys
        emitRate: 10
        lifeSpan: 30000
        sizeVariation: 100
        startTime: 1000
        opacity: 1
        velocity: AngleDirection {
            angleVariation: 360
            magnitude: 50
            magnitudeVariation: 25
        }
    }

    ItemParticle {
        delegate: Rectangle {
            color: "white"
            property int widthHeight: 1
            width:widthHeight
            height:widthHeight
            radius: widthHeight
            antialiasing: true
            Behavior on widthHeight {
                PropertyAnimation {duration: 30000}
            }
            Component.onCompleted: widthHeight = 4;
        }
        system: partSys
    }

}