examples/particles/emitters/content/trailemitter.qml

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  40
  41 import QtQuick 2.0
  42 import QtQuick.Particles 2.0
  43
  44 Rectangle {
  45     id: root
  46     width: 360
  47     height: 540
  48     color: "black"
  49
  50     ParticleSystem {
  51         id: particles
  52         anchors.fill: parent
  53
  54         ImageParticle {
  55             id: smoke
  56             system: particles
  57             anchors.fill: parent
  58             groups: ["A", "B"]
  59             source: "../../images/particle.png"
  60             colorVariation: 0
  61             color: "#00111111"
  62         }
  63         ImageParticle {
  64             id: flame
  65             anchors.fill: parent
  66             system: particles
  67             groups: ["C", "D"]
  68             source: "../../images/particle.png"
  69             colorVariation: 0.1
  70             color: "#00ff400f"
  71         }
  72
  73         Emitter {
  74             id: fire
  75             system: particles
  76             group: "C"
  77
  78             y: parent.height
  79             width: parent.width
  80
  81             emitRate: 350
  82             lifeSpan: 3500
  83
  84             acceleration: PointDirection { y: -17; xVariation: 3 }
  85             velocity: PointDirection {xVariation: 3}
  86
  87             size: 24
  88             sizeVariation: 8
  89             endSize: 4
  90         }
  91
  92         TrailEmitter {
  93             id: fireSmoke
  94             group: "B"
  95             system: particles
  96             follow: "C"
  97             width: root.width
  98             height: root.height - 68
  99
 100             emitRatePerParticle: 1
 101             lifeSpan: 2000
 102
 103             velocity: PointDirection {y:-17*6; yVariation: -17; xVariation: 3}
 104             acceleration: PointDirection {xVariation: 3}
 105
 106             size: 36
 107             sizeVariation: 8
 108             endSize: 16
 109         }
 110
 111         TrailEmitter {
 112             id: fireballFlame
 113             anchors.fill: parent
 114             system: particles
 115             group: "D"
 116             follow: "E"
 117
 118             emitRatePerParticle: 120
 119             lifeSpan: 180
 120             emitWidth: TrailEmitter.ParticleSize
 121             emitHeight: TrailEmitter.ParticleSize
 122             emitShape: EllipseShape{}
 123
 124             size: 16
 125             sizeVariation: 4
 126             endSize: 4
 127         }
 128
 129         TrailEmitter {
 130             id: fireballSmoke
 131             anchors.fill: parent
 132             system: particles
 133             group: "A"
 134             follow: "E"
 135
 136             emitRatePerParticle: 128
 137             lifeSpan: 2400
 138             emitWidth: TrailEmitter.ParticleSize
 139             emitHeight: TrailEmitter.ParticleSize
 140             emitShape: EllipseShape{}
 141
 142             velocity: PointDirection {yVariation: 16; xVariation: 16}
 143             acceleration: PointDirection {y: -16}
 144
 145             size: 24
 146             sizeVariation: 8
 147             endSize: 8
 148         }
 149
 150         Emitter {
 151             id: balls
 152             system: particles
 153             group: "E"
 154
 155             y: parent.height
 156             width: parent.width
 157
 158             emitRate: 2
 159             lifeSpan: 7000
 160
 161             velocity: PointDirection {y:-17*4*2; xVariation: 6*6}
 162             acceleration: PointDirection {y: 17*2; xVariation: 6*6}
 163
 164             size: 8
 165             sizeVariation: 4
 166         }
 167
 168         Turbulence { //A bit of turbulence makes the smoke look better
 169             anchors.fill: parent
 170             groups: ["A","B"]
 171             strength: 32
 172             system: particles
 173         }
 174     }
 175 }
 176