Qt 5.8 | Qt Quick | Qt Quick Particles Examples - System | timedgroupchanges.qml Example File

Qt 5.8.0 Reference Documentation

# timedgroupchanges.qml Example File

particles/system/content/timedgroupchanges.qml

      /****************************************************************************
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      ** This file is part of the examples of the Qt Toolkit.
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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
              }
          }
      }