Question

我正在使用粒子系统。我的粒子从中心出来，但我想要出现不同的图像。
这些图像的文件路径存储在一个数组中。我做了一个功能来完成这个安排并返回每个位置的内容返回的是每张图片要发送到 ImageParticle的来源的路径。

问题是，如果你滚动整个数组但只返回最后一个图像的路径，从逻辑上讲，我得到一个图像而不是存储在数组中的二十个图像。
有人可以帮帮我吗？帮助和建议被广泛接受。

这是我的代码：

import QtQuick 2.0
import QtQuick.Particles 2.0    

Rectangle {
    id: bg
    width: 1920         //360
    height: 1080            //360
    color: "black"

    ParticleSystem {
        id: particleSys
    }            

    Emitter{
        id: particles
        anchors.centerIn: parent
        height: 1; width: 1
        system: particleSys
        emitRate: 30
        lifeSpan: 4000
        lifeSpanVariation: 500
        maximumEmitted: 1000
        size: 5
        endSize: 200                      

        velocity: TargetDirection{      
            targetX: 100; targetY: 100
            targetVariation: 360
            magnitude: 250
        }            
    }         

    property var picturesList: [
        "images/Image1.png", "images/Image2.png", "images/Image3.png", "images/Image4.png", "images/Image5.png", "images/Image6.png", "images/Image7.png", "images/Image8.png", "images/Image9.png", "images/Image10.png",
        "images/Image11.png", "images/Image12.png", "images/Image13.png", "images/Image14.png", "images/Image15.png", "images/Image16.png", "images/Image17.png", "images/Image18.png", "images/Image19.png", "images/Image20.png"
    ]

    function getImage(arr){
        var flag = "";
        for(var i = 0; i < arr.length ; i++){                    
            flag = arr[i];
            console.log("Image: " + arr[i] + " flag: " + flag )   //To check if array is traversing.
        }    
        return flag;
    }

    ImageParticle{            
        property var link: getImage(picturesList)
        source: link
        system: particleSys
    }

    // To check which image is returned.
    MouseArea {  
        anchors.fill: parent
        onClicked: {
            console.log(getImage(picturesList))
        }
    }             
}

Answer 1

我是问过上一个问题的人，我在这里给出答案我非常清楚，如果您知道另一种方式我邀请您分享，可以通过多种方式解决问题欢迎提出有关回应的建议。

我在这里分享代码：

import QtQuick 2.0
import QtQuick.Particles 2.0

Rectangle {
    id: bg
    width: 1920         
    height: 1080        
    color: "black"

    ParticleSystem {
        id: particleSys
    }           

    Emitter{
        id: particles
        anchors.centerIn: parent
        height: 1; width: 1
        system: particleSys
        emitRate: 30
        lifeSpan: 4000
        lifeSpanVariation: 500
        maximumEmitted: 1000
        size: 5
        endSize: 200                          

        velocity: TargetDirection{      //4
            targetX: 100; targetY: 100
            targetVariation: 360
            magnitude: 250
        }            
    }         
    property var picturesList: [
        "images/Image1.png", "images/Image2.png", "images/Image3.png", "images/Image4.png", "images/Image5.png", "images/Image6.png", "images/Image7.png", "images/Image8.png", "images/Image9.png", "images/Image10.png",
        "images/Image11.png", "images/Image12.png", "images/Image13.png", "images/Image14.png", "images/Image15.png", "images/Image16.png", "images/Image17.png", "images/Image18.png", "images/Image19.png", "images/Image20.png"
    ]          

    ItemParticle {
        id: particle
        system: particleSys
        delegate: itemDelegate
    }

    Component {
        id: itemDelegate
        Rectangle {
            id: container
            width: 26*Math.ceil(Math.random()*3); height: width
            color: 'white'
            Image {
                anchors.fill: parent
                anchors.margins: 3
                source: 'images/Image'+Math.ceil(Math.random()*20)+'.png'            
            }
        }
    }            
}

如您所见，将输出文件夹中的所有图像我只需将＆＃34; ImageParticle＆＃34; 更改为＆＃34; ItemParticle＆＃34; ，然后我添加 ＆＃34;组件＆＃34; 作为代理所需的图像。
所以我们不会使用数组（在前面的代码中省略它），因为现在只连接图像的路径和一个随机数（选择图像）。
我希望你能为他们服务，如果你有更好的实施，请告诉他们。

粒子与不同的图像。 [QML]

1 个答案: