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A javascript library that makes dom elements react magnetic to the cursor

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Magnetic elements

Lightweight library to make html elements magnetic to your mouse.

Features

  • Lightweight
  • No dependencies
  • Optionally use your own external RAF loop to increase performance
  • Fps aware lerping

Demo

Magnetic elements demo.

Installation

npm

npm i @toon.rombaut/magnetic-elements

yarn

yarn add @toon.rombaut/magnetic-elements

Usage

  1. Add the 'magnetic-element' tag to your html elements that you want to make magnetic
<body>
    <div class="container">
        <button magnetic-element>I'm a magnetic button</button>
        <p magnetic-element>I'm a magnetic paragraph</p>
    </div>
</body>
  1. Import and initiaze in javascript
//import
import { MagneticElementsController } from "@toon.rombaut/magnetic-elements";

//Initialize
const magneticElementsController = new MagneticElementsController();
  1. If you don't need the magnetic elements anymore, or you want to re-initialize, don't forget to use the destroy method on the current instance. This is also adviced when changing pages in an SPA.
magneticElementsController.destroy();

Options

Parameter Type Required Default Description
standalone Boolean No false Set to true if you are using your own external RAF loop. Can be used to increase performance.
triggerArea Number No 200 The size of the area around the elements to trigger the magnetic effect.
interpolationFactor Number No 0.8 The interpolation factor used by the lerp function. Value between 0 and 1.
magneticForce Number No 0.3 The strength of the magnetic effect. Value between 0 and 1.

Methods

Methods that can be executed on the EzSmoothScroll instance.

Method Parameters Description
onResize() / Manually trigger the resize method.
update() / Manually trigger an update of the magnetic elements. Useful if you use your own external RAF.
destroy / Destroy the eventlisteners inside the instance. Important to execute if you want to re-initialize or to increase performance when you don't need the instance anymore.

External RAF

You can use your own external RAF loop.

//import
import { MagneticElementsController } from "@toon.rombaut/magnetic-elements";

//Initialize
const magneticElementsController = new MagneticElementsController({
    standalone:false,
    triggerArea: 300,
    interpolationFactor: 0.5,
    magneticForce: 0.5
});

//render function,
render = () => {
    magneticElementsController.update();
    //do you other stuff here

    requestAnimationFrame(render);
}
//kickstart your own external RAF loop
render();

Support

I appreciate all feedback and comments. Buy Me A Coffee

Socials

Instagram: @toon.rombaut Email: [email protected]

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