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<h1 class="title">maroon.qml Example File</h1>
<span class="subtitle">demos/maroon/maroon.qml</span>
<!-- $$$demos/maroon/maroon.qml-description -->
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<pre class="qml">

  /****************************************************************************
  **
  ** Copyright (C) 2017 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the examples of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:BSD$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
  ** a written agreement between you and The Qt Company. For licensing terms
  ** and conditions see https://www.qt.io/terms-conditions. For further
  ** information use the contact form at https://www.qt.io/contact-us.
  **
  ** BSD License Usage
  ** Alternatively, 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
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  import QtQuick 2.0
  import QtQuick.Particles 2.0
  import "content"
  import "content/logic.js" as Logic

  Item {
      id: root
      width: 320
      height: 480
      property var gameState
      property bool passedSplash: false

      Image {
          source:"content/gfx/background.png"
          anchors.bottom: view.bottom

          ParticleSystem {
              id: particles
              anchors.fill: parent

              ImageParticle {
                  id: bubble
                  anchors.fill: parent
                  source: "content/gfx/catch.png"
                  opacity: 0.25
              }

              Wander {
                  xVariance: 25;
                  pace: 25;
              }

              Emitter {
                  width: parent.width
                  height: 150
                  anchors.bottom: parent.bottom
                  anchors.bottomMargin: 3
                  startTime: 15000

                  emitRate: 2
                  lifeSpan: 15000

                  acceleration: PointDirection{ y: -6; xVariation: 2; yVariation: 2 }

                  size: 24
                  sizeVariation: 16
              }
          }
      }

      Column {
          id: view
          y: -(height - 480)
          width: 320

          GameOverScreen { gameCanvas: canvas }

          Item {
              id: canvasArea
              width: 320
              height: 480

              Row {
                  height: childrenRect.height
                  Image {
                      id: wave
                      y: 30
                      source:"content/gfx/wave.png"
                  }
                  Image {
                      y: 30
                      source:"content/gfx/wave.png"
                  }
                  NumberAnimation on x { from: 0; to: -(wave.width); duration: 16000; loops: Animation.Infinite }
                  SequentialAnimation on y {
                      loops: Animation.Infinite
                      NumberAnimation { from: y - 2; to: y + 2; duration: 1600; easing.type: Easing.InOutQuad }
                      NumberAnimation { from: y + 2; to: y - 2; duration: 1600; easing.type: Easing.InOutQuad }
                  }
              }

              Row {
                  opacity: 0.5
                  Image {
                      id: wave2
                      y: 25
                      source: "content/gfx/wave.png"
                  }
                  Image {
                      y: 25
                      source: "content/gfx/wave.png"
                  }
                  NumberAnimation on x { from: -(wave2.width); to: 0; duration: 32000; loops: Animation.Infinite }
                  SequentialAnimation on y {
                      loops: Animation.Infinite
                      NumberAnimation { from: y + 2; to: y - 2; duration: 1600; easing.type: Easing.InOutQuad }
                      NumberAnimation { from: y - 2; to: y + 2; duration: 1600; easing.type: Easing.InOutQuad }
                  }
              }

              Image {
                  source: "content/gfx/sunlight.png"
                  opacity: 0.02
                  y: 0
                  anchors.horizontalCenter: parent.horizontalCenter
                  transformOrigin: Item.Top
                  SequentialAnimation on rotation {
                      loops: Animation.Infinite
                      NumberAnimation { from: -10; to: 10; duration: 8000; easing.type: Easing.InOutSine }
                      NumberAnimation { from: 10; to: -10; duration: 8000; easing.type: Easing.InOutSine }
                  }
              }

              Image {
                  source: "content/gfx/sunlight.png"
                  opacity: 0.04
                  y: 20
                  anchors.horizontalCenter: parent.horizontalCenter
                  transformOrigin: Item.Top
                  SequentialAnimation on rotation {
                      loops: Animation.Infinite
                      NumberAnimation { from: 10; to: -10; duration: 8000; easing.type: Easing.InOutSine }
                      NumberAnimation { from: -10; to: 10; duration: 8000; easing.type: Easing.InOutSine }
                  }
              }

              Image {
                  source: "content/gfx/grid.png"
                  opacity: 0.5
              }

              GameCanvas {
                  id: canvas
                  anchors.bottom: parent.bottom
                  anchors.bottomMargin: 20
                  x: 32
                  focus: true
              }

              InfoBar { anchors.bottom: canvas.top; anchors.bottomMargin: 6; width: parent.width }

              //3..2..1..go
              Timer {
                  id: countdownTimer
                  interval: 1000
                  running: root.countdown < 5
                  repeat: true
                  onTriggered: root.countdown++
              }
              Repeater {
                  model: ["content/gfx/text-blank.png", "content/gfx/text-3.png", "content/gfx/text-2.png", "content/gfx/text-1.png", "content/gfx/text-go.png"]
                  delegate: Image {
                      visible: root.countdown <= index
                      opacity: root.countdown == index ? 0.5 : 0.1
                      scale: root.countdown >= index ? 1.0 : 0.0
                      source: modelData
                      Behavior on opacity { NumberAnimation {} }
                      Behavior on scale { NumberAnimation {} }
                  }
              }
          }

          NewGameScreen {
              onStartButtonClicked: root.passedSplash = true
          }
      }

      property int countdown: 10
      Timer {
          id: gameStarter
          interval: 4000
          running: false
          repeat: false
          onTriggered: Logic.startGame(canvas);
      }

      states: [
          State {
              name: "gameOn"; when: gameState.gameOver == false && passedSplash
              PropertyChanges { target: view; y: -(height - 960) }
              StateChangeScript { script: root.countdown = 0; }
              PropertyChanges { target: gameStarter; running: true }
          },
          State {
              name: "gameOver"; when: gameState.gameOver == true
              PropertyChanges { target: view; y: 0 }
          }
      ]

      transitions: Transition {
          NumberAnimation { properties: "x,y"; duration: 1200; easing.type: Easing.OutQuad }
      }

      Component.onCompleted: gameState = Logic.newGameState(canvas);
  }

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