Litematic-reader

Example:

import { readFile } from "fs/promises";
import { Litematic } from '@kleppe/litematic-reader'

async function example(filepath: string) {
    const ArrayBuffer = readFile(filepath)

    const litematic = new Litematic(ArrayBuffer) // It only takes inn a ArrayBuffer
    
    /* 
        Gets all block in  litematic file and return with block id and position
    */
    console.log(await litematic.getAllBlocks()) 
    /* 
        logs: [
            {pos {x: 0, y: 0, z:0} block: 'minecraft:air'},
            {pos {x: 0, y: 0, z:1} block: 'minecraft:stone'}
            etc...
        ]
    */

    /* 
        Get a specific block in litematic file
    */
    console.log(await litematic.getBlock(0, 0, 0))
    /*
        logs: 'minecraft:air'
    */

    /* Get a palette of all the diffrent blocks with counts them */
    console.log(await litematic.getBlockPaletteWithCount())
    /*
        logs: {
            'minecraft:stone': { block: 'minecraft:smooth_quartz', count: 355 },
            'minecraft:air': { block: 'minecraft:air', count: 1551 },
            etc...
        }
    */

    /* Get a palette of all the diffrent blocks */
    console.log(await litematic.getBlockPalette())
    /* 
        logs: [
            'minecraft:air',
            'minecraft:stone',
            etc...
        ]
    */

    /* The functions above all read individually */
    await litematic.read() // Only needed for the operations beneath


    /* Can also access other file data */
    console.log(litematic.litematic?.totalBlocks) // 2
    console.log(litematic.litematic?.palette) /* 
    PaletteManager {
        palette: [],
        paletteList: []
    }
    */
    console.log(litematic.litematic?.version) // 14
    console.log(litematic.litematic?.author) // Minecraft Name
    console.log(litematic.litematic?.name) // Litematic Name
    console.log(litematic.litematic?.description) // Litematic Description
}

example('file.litematic')

Web use || Vite fix

When Vite is used the fs/promises module will create problems. When you use a Node.js module in the browser, Vite will output the following warning.

Module "fs" has been externalized for browser compatibility. Cannot access "fs.readFile" in client code.

This is because Vite does not automatically polyfill Node.js modules.

Vite own documentation says:

We recommend avoiding Node.js modules for browser code to reduce the bundle size, although you can add polyfills manually. If the module is imported from a third-party library (that's meant to be used in the browser), it's advised to report the issue to the respective library.

Vite FS Troubleshooting.

Example:

Html:

<input id="input" type="file">

TS / JS:

import { Litematic } from '@kleppe/litematic-reader'
const input = getElementById('input')

input.addEventListener('change', (event:any) => {
    const file = event.target.files[0]
    let reader = new FileReader()

    reader.addEventListener('loadend', async (e) => {
        const arrayBuffer = e.target?.result
        let litematic = new Litematic(arrayBuffer as ArrayBuffer)

        /* Add function and logistics here */
    })

    reader.readAsArrayBuffer(file)

    /* Can also call another function to to the logistics */
    someFunction(file)
})