groupgoal.qml Example File

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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
          }
      }
  }