- Qt 5.5
- Qt Quick
- Qt Quick Demo - Same Game
- Block.qml Example File
- Qt 5.5.1 Reference Documentation

# Block.qml Example File

demos/samegame/content/Block.qml

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the examples of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:BSD$
    ** You may use this file under the terms of the BSD license as follows:
    **
    ** "Redistribution and use in source and binary forms, with or without
    ** modification, are permitted provided that the following conditions are
    ** met:
    **   * Redistributions of source code must retain the above copyright
    **     notice, this list of conditions and the following disclaimer.
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    **     notice, this list of conditions and the following disclaimer in
    **     the documentation and/or other materials provided with the
    **     distribution.
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    **     contributors may be used to endorse or promote products derived
    **     from this software without specific prior written permission.
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    ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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    import QtQuick 2.0
    import QtQuick.Particles 2.0

    Item {
        id: block
        property bool dying: false
        property bool spawned: false
        property int type: 0
        property ParticleSystem particleSystem

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

        Image {
            id: img
            source: {
                if (type == 0){
                    "gfx/red.png";
                } else if (type == 1) {
                    "gfx/blue.png";
                } else if (type == 2) {
                    "gfx/green.png";
                } else {
                    "gfx/yellow.png";
                }
            }
            opacity: 0
            Behavior on opacity { NumberAnimation { duration: 200 } }
            anchors.fill: parent
        }

        //Foreground particles
        BlockEmitter {
            id: particles
            system: particleSystem
            group: {
                if (type == 0){
                    "red";
                } else if (type == 1) {
                    "blue";
                } else if (type == 2) {
                    "green";
                } else {
                    "yellow";
                }
            }
            anchors.fill: parent
        }

        //Paint particles on the background
        PaintEmitter {
            id: particles2
            system: particleSystem
        }

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

            State {
                name: "DeathState"; when: dying == true
                StateChangeScript { script: {particleSystem.paused = false; particles.pulse(100); particles2.pulse(100);} }
                PropertyChanges { target: img; opacity: 0 }
                StateChangeScript { script: block.destroy(1000); }
            }
        ]
    }