attractor.qml Example File

particles/affectors/content/attractor.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 {
      id: root
      width: 360
      height: 540
      color: "black"
      Image {
          source: "../../images/finalfrontier.png"
          anchors.centerIn:parent
      }
      ParticleSystem {
          id: particles
          anchors.fill: parent

          Emitter {
              group: "stars"
              emitRate: 40
              lifeSpan: 4000
              enabled: true
              size: 30
              sizeVariation: 10
              velocity: PointDirection { x: 220; xVariation: 40 }
              height: parent.height
          }
          Emitter {
              group: "roids"
              emitRate: 10
              lifeSpan: 4000
              enabled: true
              size: 30
              sizeVariation: 10
              velocity: PointDirection { x: 220; xVariation: 40 }
              height: parent.height
          }
          ImageParticle {
              id: stars
              groups: ["stars"]
              source: "qrc:///particleresources/star.png"
              color: "white"
              colorVariation: 0.1
              alpha: 0
          }
          ImageParticle {
              id: roids
              groups: ["roids"]
              sprites: Sprite {
                  id: spinState
                  name: "spinning"
                  source: "../../images/meteor.png"
                  frameCount: 35
                  frameDuration: 60
              }
          }
          ImageParticle {
              id: shot
              groups: ["shot"]
              source: "qrc:///particleresources/star.png"

              color: "#0FF06600"
              colorVariation: 0.3
          }
          ImageParticle {
              id: engine
              groups: ["engine"]
              source: "qrc:///particleresources/fuzzydot.png"

              color: "orange"
              SequentialAnimation on color {
                  loops: Animation.Infinite
                  ColorAnimation {
                      from: "red"
                      to: "cyan"
                      duration: 1000
                  }
                  ColorAnimation {
                      from: "cyan"
                      to: "red"
                      duration: 1000
                  }
              }

              colorVariation: 0.2
          }
          Attractor {
              id: gs; pointX: root.width/2; pointY: root.height/2; strength: 4000000;
              affectedParameter: Attractor.Acceleration
              proportionalToDistance: Attractor.InverseQuadratic
          }
          Age {
              x: gs.pointX - 8;
              y: gs.pointY - 8;
              width: 16
              height: 16
          }
          Rectangle {
              color: "black"
              width: 8
              height: 8
              radius: 4
              x: gs.pointX - 4
              y: gs.pointY - 4
          }

          Image {
              source:"../../images/rocket2.png"
              id: ship
              width: 45
              height: 22
              //Automatic movement
              SequentialAnimation on x {
                  loops: -1
                  NumberAnimation{to: root.width-45; easing.type: Easing.InOutQuad; duration: 2000}
                  NumberAnimation{to: 0; easing.type: Easing.OutInQuad; duration: 6000}
              }
              SequentialAnimation on y {
                  loops: -1
                  NumberAnimation{to: root.height-22; easing.type: Easing.OutInQuad; duration: 6000}
                  NumberAnimation{to: 0; easing.type: Easing.InOutQuad; duration: 2000}
              }
          }
          Emitter {
              group: "engine"
              emitRate: 200
              lifeSpan: 1000
              size: 10
              endSize: 4
              sizeVariation: 4
              velocity: PointDirection { x: -128; xVariation: 32 }
              height: ship.height
              y: ship.y
              x: ship.x
              width: 20
          }
          Emitter {
              group: "shot"
              emitRate: 32
              lifeSpan: 1000
              enabled: true
              size: 40
              velocity: PointDirection { x: 256; }
              x: ship.x + ship.width
              y: ship.y + ship.height/2
          }
      }
  }