Qt 5.6 | Qt Quick | Qt Quick Particles Examples - Affectors | spritegoal.qml Example File

Qt 5.6.3 Reference Documentation

# spritegoal.qml Example File

particles/affectors/content/spritegoal.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.
      **   * 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

      Item {
          id: root
          width: 360
          height: 540
          MouseArea {
              id: ma
              anchors.fill: parent
          }

          ParticleSystem { id: sys }
          Image {
              source: "../../images/finalfrontier.png"
              transformOrigin: Item.Center
              anchors.centerIn: parent
              NumberAnimation on rotation {
                  from: 0
                  to: 360
                  duration: 200000
                  loops: Animation.Infinite
              }

          }
          ImageParticle {
              system: sys
              groups: ["starfield"]
              source: "qrc:///particleresources/star.png"
              colorVariation: 0.3
              color: "white"
          }
          Emitter {
              id: starField
              system: sys
              group: "starfield"

              emitRate: 80
              lifeSpan: 2500

              anchors.centerIn: parent

              //acceleration: AngledDirection {angleVariation: 360; magnitude: 200}//Is this a better effect, more consistent velocity?
              acceleration: PointDirection { xVariation: 200; yVariation: 200; }

              size: 0
              endSize: 80
              sizeVariation: 10
          }
          Emitter {
              system: sys
              group: "meteor"
              emitRate: 12
              lifeSpan: 5000
              acceleration: PointDirection { xVariation: 80; yVariation: 80; }
              size: 15
              endSize: 300
              anchors.centerIn: parent
           }
          ImageParticle {
              system: sys
              groups: ["meteor"]
              sprites:[Sprite {
                      id: spinState
                      name: "spinning"
                      source: "../../images/meteor.png"
                      frameCount: 35
                      frameDuration: 40
                      randomStart: true
                      to: {"explode":0, "spinning":1}
                  },Sprite {
                      name: "explode"
                      source: "../../images/_explo.png"
                      frameCount: 22
                      frameDuration: 40
                      to: {"nullFrame":1}
                  },Sprite {//Not sure if this is needed, but seemed easiest
                      name: "nullFrame"
                      source: "../../images/nullRock.png"
                      frameCount: 1
                      frameDuration: 1000
                  }
              ]
          }
          SpriteGoal {
              groups: ["meteor"]
              system: sys
              goalState: "explode"
              jump: true
              anchors.fill: rocketShip
              width: 60
              height: 60
          }
          Image {
              id: rocketShip
              source: "../../images/rocket.png"
              anchors.centerIn: holder
              rotation: (circle.percent+0.25) * 360
              z: 2
          }
          Item {
              id: holder
              x: circle.x - Math.sin(circle.percent * 6.28316530714)*200
              y: circle.y + Math.cos(circle.percent * 6.28316530714)*200
              z: 1
          }

          Item {
              id: circle
              x: root.width / 1.2
              y: root.height / 1.7
              property real percent: 0

              SequentialAnimation on percent {
                  id: circleAnim1
                  loops: Animation.Infinite
                  running: true
                  NumberAnimation {
                  duration: 4000
                  from: 1
                  to: 0
                  }

              }
          }

          ImageParticle {
              z:0
              system: sys
              groups: ["exhaust"]
              source: "qrc:///particleresources/fuzzydot.png"

              color: "orange"
              SequentialAnimation on color {
                  loops: Animation.Infinite
                  ColorAnimation {
                      from: "red"
                      to: "cyan"
                      duration: 1000
                  }
                  ColorAnimation {
                      from: "cyan"
                      to: "red"
                      duration: 1000
                  }
              }

              colorVariation: 0.2
          }

          Emitter {
              id: trailsNormal2
              system: sys
              group: "exhaust"

              emitRate: 300
              lifeSpan: 500

              y: holder.y
              x: holder.x

              velocity: PointDirection { xVariation: 40; yVariation: 40; }
              velocityFromMovement: 16

              acceleration: PointDirection { xVariation: 10; yVariation: 10; }

              size: 4
              sizeVariation: 4
          }
      }