attractor.qml Example File | Qt Quick 5.12.12

- Qt 5.12
- Qt Quick
- Qt Quick Particles Examples - Affectors
- attractor.qml Example File
- Qt 5.12.12 Reference Documentation

# attractor.qml Example File

particles/affectors/content/attractor.qml

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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
             }
         }
     }