Qt 5.6 | Qt Quick | Qt Quick Particles Examples - Affectors | groupgoal.qml Example File

Qt 5.6.2 Reference Documentation

# groupgoal.qml Example File

particles/affectors/content/groupgoal.qml

      /****************************************************************************
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      ** Contact: http://www.qt.io/licensing/
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      ** This file is part of the examples of the Qt Toolkit.
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      ** $QT_BEGIN_LICENSE:BSD$
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      import QtQuick 2.0
      import QtQuick.Particles 2.0

      Rectangle {
          id: root
          width: 360
          height: 600
          color: "black"

          property int score: 0
          Text {
              color: "white"
              anchors.right: parent.right
              text: score
          }

          ParticleSystem {
              id: particles
              anchors.fill: parent
              // ![unlit]
              ParticleGroup {
                  name: "unlit"
                  duration: 1000
                  to: {"lighting":1, "unlit":99}
                  ImageParticle {
                      source: "../../images/particleA.png"
                      colorVariation: 0.1
                      color: "#2060160f"
                  }
                  GroupGoal {
                      whenCollidingWith: ["lit"]
                      goalState: "lighting"
                      jump: true
                  }
              }
              // ![unlit]
              // ![lighting]
              ParticleGroup {
                  name: "lighting"
                  duration: 100
                  to: {"lit":1}
              }
              // ![lighting]
              // ![lit]
              ParticleGroup {
                  name: "lit"
                  duration: 10000
                  onEntered: score++;
                  TrailEmitter {
                      id: fireballFlame
                      group: "flame"

                      emitRatePerParticle: 48
                      lifeSpan: 200
                      emitWidth: 8
                      emitHeight: 8

                      size: 24
                      sizeVariation: 8
                      endSize: 4
                  }

                  TrailEmitter {
                      id: fireballSmoke
                      group: "smoke"
              // ![lit]

                      emitRatePerParticle: 120
                      lifeSpan: 2000
                      emitWidth: 16
                      emitHeight: 16

                      velocity: PointDirection {yVariation: 16; xVariation: 16}
                      acceleration: PointDirection {y: -16}

                      size: 24
                      sizeVariation: 8
                      endSize: 8
                  }
              }

              ImageParticle {
                  id: smoke
                  anchors.fill: parent
                  groups: ["smoke"]
                  source: "qrc:///particleresources/glowdot.png"
                  colorVariation: 0
                  color: "#00111111"
              }
              ImageParticle {
                  id: pilot
                  anchors.fill: parent
                  groups: ["pilot"]
                  source: "qrc:///particleresources/glowdot.png"
                  redVariation: 0.01
                  blueVariation: 0.4
                  color: "#0010004f"
              }
              ImageParticle {
                  id: flame
                  anchors.fill: parent
                  groups: ["flame", "lit", "lighting"]
                  source: "../../images/particleA.png"
                  colorVariation: 0.1
                  color: "#00ff400f"
              }

              Emitter {
                  height: parent.height/2
                  emitRate: 4
                  lifeSpan: 4000//TODO: Infinite & kill zone
                  size: 24
                  sizeVariation: 4
                  velocity: PointDirection {x:120; xVariation: 80; yVariation: 50}
                  acceleration: PointDirection {y:120}
                  group: "unlit"
              }

              Emitter {
                  id: flamer
                  x: 100
                  y: 300
                  group: "pilot"
                  emitRate: 80
                  lifeSpan: 600
                  size: 24
                  sizeVariation: 2
                  endSize: 0
                  velocity: PointDirection { y:-100; yVariation: 4; xVariation: 4 }
                  // ![groupgoal-pilot]
                  GroupGoal {
                      groups: ["unlit"]
                      goalState: "lit"
                      jump: true
                      system: particles
                      x: -15
                      y: -55
                      height: 75
                      width: 30
                      shape: MaskShape {source: "../../images/matchmask.png"}
                  }
                  // ![groupgoal-pilot]
              }
              // ![groupgoal-ma]
              //Click to enflame
              GroupGoal {
                  groups: ["unlit"]
                  goalState: "lighting"
                  jump: true
                  enabled: ma.pressed
                  width: 18
                  height: 18
                  x: ma.mouseX - width/2
                  y: ma.mouseY - height/2
              }
              // ![groupgoal-ma]
              MouseArea {
                  id: ma
                  anchors.fill: parent
              }
          }
      }