BoomBlock.qml Example File

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 import QtQuick 2.0
 import QtQuick.Particles 2.0

 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 }
         }
     }

     ParticleSystem {
         id: sys
         anchors.centerIn: parent
         ImageParticle {
             // ![0]
             source: {
                 if (type == 0)
                     return "../../shared/pics/redStar.png";
                 else if (type == 1)
                     return "../../shared/pics/blueStar.png";
                 else
                     return "../../shared/pics/greenStar.png";
             }
             rotationVelocityVariation: 360
             // ![0]
         }

         Emitter {
             id: particles
             anchors.centerIn: parent
             emitRate: 0
             lifeSpan: 700
             velocity: AngleDirection {angleVariation: 360; magnitude: 80; magnitudeVariation: 40}
             size: 16
         }
     }

     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); }
         }
     ]
 }