qt-everywhere-src-5.14.1/qtdoc/examples/demos/samegame/content/PaintEmitter.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
**     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
import "."

Emitter {
    property Item block: parent
    anchors.fill: parent
    shape: EllipseShape { fill: true }
    group: {
        if (block.type == 0){
            "redspots";
        } else if (block.type == 1) {
            "bluespots";
        } else if (block.type == 2) {
            "greenspots";
        } else {
            "yellowspots";
        }
    }
    size: Settings.blockSize * 2
    endSize: Settings.blockSize/2
    lifeSpan: 30000
    enabled: false
    emitRate: 60
    maximumEmitted: 60
    velocity: PointDirection{ y: 4; yVariation: 4 }
    /* Possibly better, but dependent on gerrit change,28212
    property real mainIntensity: 0.8
    property real subIntensity: 0.1
    property real colorVariation: 0.005
    onEmitParticles: {//One group, many colors, for better stacking
        for (var i=0; i<particles.length; i++) {
            var particle = particles[i];
            if (block.type == 0) {
                particle.red = mainIntensity + (Math.random() * colorVariation * 2 - colorVariation);
                particle.green = subIntensity + (Math.random() * colorVariation * 2 - colorVariation);
                particle.blue = subIntensity + (Math.random() * colorVariation * 2 - colorVariation);
            } else if (block.type == 1) {
                particle.red = subIntensity + (Math.random() * colorVariation * 2 - colorVariation);
                particle.green = subIntensity + (Math.random() * colorVariation * 2 - colorVariation);
                particle.blue = mainIntensity + (Math.random() * colorVariation * 2 - colorVariation);
            } else if (block.type == 2) {
                particle.red = subIntensity + (Math.random() * colorVariation * 2 - colorVariation);
                particle.green = mainIntensity + (Math.random() * colorVariation * 2 - colorVariation);
                particle.blue = subIntensity + (Math.random() * colorVariation * 2 - colorVariation);
            } else if (block.type == 3) {
                particle.red = mainIntensity + (Math.random() * colorVariation * 2 - colorVariation);
                particle.green = mainIntensity + (Math.random() * colorVariation * 2 - colorVariation);
                particle.blue = subIntensity + (Math.random() * colorVariation * 2 - colorVariation);
            } else {
                particle.red = mainIntensity + (Math.random() * colorVariation * 2 - colorVariation);
                particle.green = mainIntensity + (Math.random() * colorVariation * 2 - colorVariation);
                particle.blue = mainIntensity + (Math.random() * colorVariation * 2 - colorVariation);
            }
        }
    }
    */
}