trailemitter.qml Example File

  /****************************************************************************
  **
  ** 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.
  **   * Redistributions in binary form must reproduce the above copyright
  **     notice, this list of conditions and the following disclaimer in
  **     the documentation and/or other materials provided with the
  **     distribution.
  **   * Neither the name of The Qt Company Ltd nor the names of its
  **     contributors may be used to endorse or promote products derived
  **     from this software without specific prior written permission.
  **
  **
  ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/

  import QtQuick 2.0
  import QtQuick.Particles 2.0

  Rectangle {
      id: root
      width: 360
      height: 540
      color: "black"

      ParticleSystem {
          id: particles
          anchors.fill: parent

          ImageParticle {
              id: smoke
              system: particles
              anchors.fill: parent
              groups: ["A", "B"]
              source: "qrc:///particleresources/glowdot.png"
              colorVariation: 0
              color: "#00111111"
          }
          ImageParticle {
              id: flame
              anchors.fill: parent
              system: particles
              groups: ["C", "D"]
              source: "qrc:///particleresources/glowdot.png"
              colorVariation: 0.1
              color: "#00ff400f"
          }

          Emitter {
              id: fire
              system: particles
              group: "C"

              y: parent.height
              width: parent.width

              emitRate: 350
              lifeSpan: 3500

              acceleration: PointDirection { y: -17; xVariation: 3 }
              velocity: PointDirection {xVariation: 3}

              size: 24
              sizeVariation: 8
              endSize: 4
          }

          TrailEmitter {
              id: fireSmoke
              group: "B"
              system: particles
              follow: "C"
              width: root.width
              height: root.height - 68

              emitRatePerParticle: 1
              lifeSpan: 2000

              velocity: PointDirection {y:-17*6; yVariation: -17; xVariation: 3}
              acceleration: PointDirection {xVariation: 3}

              size: 36
              sizeVariation: 8
              endSize: 16
          }

          TrailEmitter {
              id: fireballFlame
              anchors.fill: parent
              system: particles
              group: "D"
              follow: "E"

              emitRatePerParticle: 120
              lifeSpan: 180
              emitWidth: TrailEmitter.ParticleSize
              emitHeight: TrailEmitter.ParticleSize
              emitShape: EllipseShape{}

              size: 16
              sizeVariation: 4
              endSize: 4
          }

          TrailEmitter {
              id: fireballSmoke
              anchors.fill: parent
              system: particles
              group: "A"
              follow: "E"

              emitRatePerParticle: 128
              lifeSpan: 2400
              emitWidth: TrailEmitter.ParticleSize
              emitHeight: TrailEmitter.ParticleSize
              emitShape: EllipseShape{}

              velocity: PointDirection {yVariation: 16; xVariation: 16}
              acceleration: PointDirection {y: -16}

              size: 24
              sizeVariation: 8
              endSize: 8
          }

          Emitter {
              id: balls
              system: particles
              group: "E"

              y: parent.height
              width: parent.width

              emitRate: 2
              lifeSpan: 7000

              velocity: PointDirection {y:-17*4*2; xVariation: 6*6}
              acceleration: PointDirection {y: 17*2; xVariation: 6*6}

              size: 8
              sizeVariation: 4
          }

          Turbulence { //A bit of turbulence makes the smoke look better
              anchors.fill: parent
              groups: ["A","B"]
              strength: 32
              system: particles
          }
      }
  }