粒子动效制作, particles.js学习

首先安装   particles.js

npm install --save particles.js

当前使用的页面内引入

import particles from 'particles.js'

然后页面写个div,设置ID名

 <div id="particles"></div>

页面初始化的时候引用

  mounted() {
   //初始化

    particlesJS.load('particles', "../../static/particles.json");
  },

然后就是配置JSON文件,这个JSON文件控制粒子的样式和状态的,就是我mounted里的particles.json,这里有个奇怪的地方,mounted执行的时候会报一个不能解析的错,如下

这个错着实困扰我好长时间,我的图片本来都是放在assets里,后来把这个文件拿出来放到static文件夹里就可以用了

原因如下

简单来讲就是assets里面的会被webpack打包进你的代码里，而static里面的，就直接引用了。
一般在static里面放一些类库的文件，在assets里面放属于该项目的资源文件。

另外放两个配置文件,一个是粒子跟随鼠标箭头,一个排斥的,看个人喜好了

//排斥
{
    "particles": {
      "number": {
        "value": 80,
        "density": {
          "enable": true,
          "value_area": 800
        }
      },
      "color": {
        "value": "#ffffff"
      },
      "shape": {
        "type": "circle",
        "stroke": {
          "width": 0,
          "color": "#000000"
        },
        "polygon": {
          "nb_sides": 5
        },
        "image": {
          "src": "img/github.svg",
          "width": 100,
          "height": 100
        }
      },
      "opacity": {
        "value": 0.5,
        "random": false,
        "anim": {
          "enable": false,
          "speed": 1,
          "opacity_min": 0.1,
          "sync": false
        }
      },
      "size": {
        "value": 5,
        "random": true,
        "anim": {
          "enable": false,
          "speed": 40,
          "size_min": 0.1,
          "sync": false
        }
      },
      "line_linked": {
        "enable": true,
        "distance": 150,
        "color": "#ffffff",
        "opacity": 0.4,
        "width": 1
      },
      "move": {
        "enable": true,
        "speed": 6,
        "direction": "none",
        "random": false,
        "straight": false,
        "out_mode": "out",
        "attract": {
          "enable": false,
          "rotateX": 600,
          "rotateY": 1200
        }
      }
    },
    "interactivity": {
      "detect_on": "canvas",
      "events": {
        "onhover": {
          "enable": true,
          "mode": "repulse"
        },
        "onclick": {
          "enable": true,
          "mode": "push"
        },
        "resize": true
      },
      "modes": {
        "grab": {
          "distance": 400,
          "line_linked": {
            "opacity": 1
          }
        },
        "bubble": {
          "distance": 400,
          "size": 40,
          "duration": 2,
          "opacity": 8,
          "speed": 3
        },
        "repulse": {
          "distance": 200
        },
        "push": {
          "particles_nb": 4
        },
        "remove": {
          "particles_nb": 2
        }
      }
    },
    "retina_detect": true,
    "config_demo": {
      "hide_card": false,
      "background_color": "#b61924",
      "background_image": "",
      "background_position": "50% 50%",
      "background_repeat": "no-repeat",
      "background_size": "cover"
    }
  }

//跟随
{
  "particles": {
    "number": {
      "value": 60,
      "density": {
        "enable": true,
        "value_area": 800
      }
    },
    "color": {
      "value": "#ffffff"
    },
    "shape": {
      "type": "circle",
      "stroke": {
        "width": 0,
        "color": "#000000"
      },
      "polygon": {
        "nb_sides": 5
      },
      "image": {
        "src": "img/github.svg",
        "width": 100,
        "height": 100
      }
    },
    "opacity": {
      "value": 0.5,
      "random": false,
      "anim": {
        "enable": false,
        "speed": 1,
        "opacity_min": 0.1,
        "sync": false
      }
    },
    "size": {
      "value": 3,
      "random": true,
      "anim": {
        "enable": false,
        "speed": 40,
        "size_min": 0.1,
        "sync": false
      }
    },
    "line_linked": {
      "enable": true,
      "distance": 150,
      "color": "#ffffff",
      "opacity": 0.4,
      "width": 1
    },
    "move": {
      "enable": true,
      "speed": 4,
      "direction": "none",
      "random": false,
      "straight": false,
      "out_mode": "out",
      "bounce": false,
      "attract": {
        "enable": false,
        "rotateX": 100,
        "rotateY": 1200
      }
    }
  },
  "interactivity": {
    "detect_on": "Window",
    "events": {
      "onhover": {
        "enable": true,
        "mode": "grab"
      },
      "onclick": {
        "enable": true,
        "mode": "push"
      },
      "resize": true
    },
    "modes": {
      "grab": {
        "distance": 140,
        "line_linked": {
          "opacity": 1
        }
      },
      "bubble": {
        "distance": 400,
        "size": 40,
        "duration": 2,
        "opacity": 8,
        "speed": 3
      },
      "repulse": {
        "distance": 200,
        "duration": 0.4
      },
      "push": {
        "particles_nb": 4
      },
      "remove": {
        "particles_nb": 2
      }
    }
  },
  "retina_detect": true
}