timedgroupchanges.qml Example File

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

 Rectangle {
     width: 360
     height: 600
     color: "black"
     ParticleSystem {
         anchors.fill: parent
         id: syssy
         ParticleGroup {
             name: "fire"
             duration: 2000
             durationVariation: 2000
             to: {"splode":1}
         }
         ParticleGroup {
             name: "splode"
             duration: 400
             to: {"dead":1}
             TrailEmitter {
                 group: "works"
                 emitRatePerParticle: 100
                 lifeSpan: 1000
                 maximumEmitted: 1200
                 size: 8
                 velocity: AngleDirection {angle: 270; angleVariation: 45; magnitude: 20; magnitudeVariation: 20;}
                 acceleration: PointDirection {y:100; yVariation: 20}
             }
         }
         ParticleGroup {
             name: "dead"
             duration: 1000
             Affector {
                 once: true
                 onAffected: worksEmitter.burst(400,x,y)
             }
         }

         Timer {
             interval: 6000
             running: true
             triggeredOnStart: true
             repeat: true
             onTriggered:startingEmitter.pulse(100);
         }
         Emitter {
             id: startingEmitter
             group: "fire"
             width: parent.width
             y: parent.height
             enabled: false
             emitRate: 80
             lifeSpan: 6000
             velocity: PointDirection {y:-100;}
             size: 32
         }

         Emitter {
             id: worksEmitter
             group: "works"
             enabled: false
             emitRate: 100
             lifeSpan: 1600
             maximumEmitted: 6400
             size: 8
             velocity: CumulativeDirection {
                 PointDirection {y:-100}
                 AngleDirection {angleVariation: 360; magnitudeVariation: 80;}
             }
             acceleration: PointDirection {y:100; yVariation: 20}
         }

         ImageParticle {
             groups: ["works", "fire", "splode"]
             source: "qrc:///particleresources/glowdot.png"
             entryEffect: ImageParticle.Scale
         }
     }
 }