Plugins/Customizations

tsParticles now supports some customizations 🥳.

NOW YOU CAN CREATE YOUR OWN SHAPES OR PRESETS

Creating a custom shape

You can now create a script with your own shape to use in your website or for distributing it to others. All you have to do is a drawing function, give it a name and use it in the config.

Publish your shapes with tsparticles-shape tag on NPM so everyone can find it.

You'll find a sample below.

Spiral sample

spiral.js - The custom shape script, you can distribute it or reuse in all your websites.

// call this method before initializing tsParticles, this shape will be available in all of your tsParticles instances
// parameters: shape name, drawing method
// opacity is just for shapes that needs a differenc opacity handling like images
tsParticles.addShape("spiral", function (context, particle, radius, opacity) {
  const data = particle.shapeData,
    realWidth = (radius - data.innerRadius) / data.lineSpacing;

  for (let i = 0; i < realWidth * 10; i++) {
    const angle = 0.1 * i,
      factor = data.innerRadius + data.lineSpacing * angle,
      pos = {
        x: factor * Math.cos(angle),
        y: factor * Math.sin(angle),
      };

    context.lineTo(pos.x, pos.y);
  }
});
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If you prefer using classes you can, IShapeDrawer interface can be implemented in your code or at least a class with four method IShapeDrawer.draw |draw(context, particle, radius, opacity, delta), IShapeDrawer.init | init(container), IShapeDrawer.afterEffect | afterEffect(context, particle, radius, opacity, delta), IShapeDrawer.destroy | destroy(container) in it. You can find a sample below.

class SpiralDrawer {
  draw(context, particle, radius, opacity, delta) {
    const data = (particle.shapeData = realWidth = (radius - data.innerRadius) / data.lineSpacing);

    for (let i = 0; i < realWidth * 10; i++) {
      const angle = 0.1 * i,
        factor = data.innerRadius + data.lineSpacing * angle,
        pos = {
          x: factor * Math.cos(angle),
          y: factor * Math.sin(angle),
        };

      context.lineTo(pos.x, pos.y);
    }
  }
}

// call this method before initializing tsParticles, this shape will be available in all of your tsParticles instances
// parameters: shape name, drawer class
tsParticles.addShape("spiral", new SpiralDrawer());
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Bubble Sample (with after effect)

bubble.js - The custom shape script

tsParticles.addShape(
  "bubble",
  function (context, particle, radius) {
    // drawing function
    context.arc(0, 0, radius, 0, Math.PI * 2, false);
  },
  undefined, // init function is not required
  function (context, particle, radius) {
    // after effect function
    context.save();
    context.beginPath();
    context.arc(radius / 3, -radius / 3, radius / 3, 0, Math.PI * 2, false);
    context.closePath();
    context.fillStyle = "#fff9";
    context.fill();
    context.restore();
  },
);
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Config

config.json - The config section to add to your config or in your plugin readme to teach others on how to use it.

{
  // [... omitted for brevity]
  "particles": {
    // [... omitted for brevity]
    "shape": {
      "type": "spiral", // this must match the name above, the type works as always, you can use an array with your custom shape inside
      "options": {
        // this must match the name above, these are the values set in particle.shapeData (the first line of the method above)
        // you can use array as value here too, the values will be random picked, like in standard shapes
        "spiral": {
          "innerRadius": 1,
          "lineSpacing": 1,
          "close": false, // this value is used by tsParticles to close the path, if you don't want to close it set this value to false
          "fill": false // this value is used by tsParticles to fill the shape with the particles color, if you want only the stroke set this value to false
        }
      }
      // [... omitted for brevity]
    }
    // [... omitted for brevity]
  }
  // [... omitted for brevity]
}
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Creating a custom preset

You can now create a script with your own preset to use in your website or for distributing it to others. All you have to do is give it a name and set all the options you need it to load correctly. Remember to not import all config, properties not needed can be omitted.

Publish your preset with tsparticles-preset tag on NPM so everyone can find it.

You'll find a sample below.

Fire preset sample

fire.preset.js - The custom preset script, you can distribute it or reuse in all your websites.

// call this method before initializing tsParticles, this preset will be available in all of your tsParticles instances
// parameters: preset name, preset partial options
tsParticles.addPreset("fire", {
  fpsLimit: 40,
  particles: {
    number: {
      value: 80,
      density: {
        enable: true,
        area: 800,
      },
    },
    color: {
      value: ["#fdcf58", "#757676", "#f27d0c", "#800909", "#f07f13"],
    },
    opacity: {
      value: 0.5,
      random: true,
    },
    size: {
      value: 3,
      random: true,
    },
    move: {
      enable: true,
      speed: 6,
      random: false,
    },
  },
  interactivity: {
    events: {
      onclick: {
        enable: true,
        mode: "push",
      },
      resize: true,
    },
  },
  background: {
    image: "radial-gradient(#4a0000, #000)",
  },
});
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config.json - The config section to add to your config or in your plugin readme to teach others on how to use it.

{
  "preset": "fire" // this should match the name above, it can be used in array values too, it will be loaded in order like everyone else
}
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