Qt Reference Documentation

# BoomBlock.qml Example File

declarative/tutorials/samegame/samegame4/content/BoomBlock.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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     import QtQuick 1.0
     import Qt.labs.particles 1.0

     Item {
         id: block

         property int type: 0
         property bool dying: false

         property bool spawned: false

         Behavior on x {
             enabled: spawned;
             SpringAnimation{ spring: 2; damping: 0.2 }
         }
         Behavior on y {
             SpringAnimation{ spring: 2; damping: 0.2 }
         }

         Image {
             id: img

             anchors.fill: parent
             source: {
                 if (type == 0)
                     return "../../shared/pics/redStone.png";
                 else if (type == 1)
                     return "../../shared/pics/blueStone.png";
                 else
                     return "../../shared/pics/greenStone.png";
             }
             opacity: 0

             Behavior on opacity {
                 NumberAnimation { properties:"opacity"; duration: 200 }
             }
         }

         Particles {
             id: particles

             width: 1; height: 1
             anchors.centerIn: parent

             emissionRate: 0
             lifeSpan: 700; lifeSpanDeviation: 600
             angle: 0; angleDeviation: 360;
             velocity: 100; velocityDeviation: 30
             source: {
                 if (type == 0)
                     return "../../shared/pics/redStar.png";
                 else if (type == 1)
                     return "../../shared/pics/blueStar.png";
                 else
                     return "../../shared/pics/greenStar.png";
             }
         }

         states: [
             State {
                 name: "AliveState"
                 when: spawned == true && dying == false
                 PropertyChanges { target: img; opacity: 1 }
             },

             State {
                 name: "DeathState"
                 when: dying == true
                 StateChangeScript { script: particles.burst(50); }
                 PropertyChanges { target: img; opacity: 0 }
                 StateChangeScript { script: block.destroy(1000); }
             }
         ]
     }