dynamicemitters.qml Example File

particles/system/content/dynamicemitters.qml
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 import QtQuick 2.0
 import QtQuick.Particles 2.0

 Rectangle {
     id: root
     color: "black"
     width: 640
     height: 480
     ParticleSystem {
         id: sys
     }
     ImageParticle {
         system: sys
         source: "qrc:///particleresources/glowdot.png"
         color: "white"
         colorVariation: 1.0
         alpha: 0.1
     }

     Component {
         id: emitterComp
         Emitter {
             id: container
             Emitter {
                 id: emitMore
                 system: sys
                 emitRate: 128
                 lifeSpan: 600
                 size: 16
                 endSize: 8
                 velocity: AngleDirection {angleVariation:360; magnitude: 60}
             }

             property int life: 2600
             property real targetX: 0
             property real targetY: 0
             function go() {
                 xAnim.start();
                 yAnim.start();
                 container.enabled = true
             }
             system: sys
             emitRate: 32
             lifeSpan: 600
             size: 24
             endSize: 8
             NumberAnimation on x {
                 id: xAnim;
                 to: targetX
                 duration: life
                 running: false
             }
             NumberAnimation on y {
                 id: yAnim;
                 to: targetY
                 duration: life
                 running: false
             }
             Timer {
                 interval: life
                 running: true
                 onTriggered: container.destroy();
             }
         }
     }

     function customEmit(x,y) {
         for (var i=0; i<8; i++) {
             var obj = emitterComp.createObject(root);
             obj.x = x
             obj.y = y
             obj.targetX = Math.random() * 240 - 120 + obj.x
             obj.targetY = Math.random() * 240 - 120 + obj.y
             obj.life = Math.round(Math.random() * 2400) + 200
             obj.emitRate = Math.round(Math.random() * 32) + 32
             obj.go();
         }
     }

     Timer {
         interval: 10000
         triggeredOnStart: true
         running: true
         repeat: true
         onTriggered: customEmit(Math.random() * 320, Math.random() * 480)
     }
     MouseArea {
         anchors.fill: parent
         onClicked: customEmit(mouse.x, mouse.y);
     }

     Text {
         anchors.horizontalCenter: parent.horizontalCenter
         text: "Click Somewhere"
         color: "white"
         font.pixelSize: 24
     }
 }