@etothepii/satisfactory-file-parser

Satisfactory File Parser

This is an NPM TypeScript Module to parse Satisfactory Files. Satisfactory is a game released by Coffee Stain Studios.

The Module is written entirely in TypeScript and comes with Type Definitions. Currently, only the built JavaScript and Type Definitions are available. But if needed, the TypeScript source can be provided as well in future versions.

This parser can read, modify and write:

• Save Files .sav
• Blueprint Files .sbp, .sbpcfg

Supported Versions

Game Version Files of U5 and below are NOT supported. However, U6 and above is perfectly fine and parsable.

• ✅ U7
• ✅ U6
• ❌ <= U5

U8 is on the Horizon!

We can not promise that U8 saves will work out of the box! If there will be changes, those will come very soon as soon as U8 is out on Experimental.

Installation via npm

npm install @etothepii/satisfactory-file-parser

Usage of Save Parsing

Usage of the SaveParser is easy. For reading a save file (.sav), just pass a Buffer to the parser with the file content.

import * as fs from 'fs';
import { Parser } from "@etothepii/satisfactory-file-parser";

const file = fs.readFileSync('./MySave.sav') as Buffer;
const parsedSave = Parser.ParseSaveFile(file);

Consequently, writing a parsed save file back is just as easy. The SaveParser has callbacks to assist in syncing on different occasions during the process. For example, when writing the header or when writing a chunk of the save body. The splitting in individual chunks enables you to more easily stream the binary data to somewhere else.

import * as fs from 'fs';
import { Parser } from "@etothepii/satisfactory-file-parser";

let header: Uint8Array, bodyChunks: Uint8Array[] = [];
Parser.WriteSave(save, binaryBeforeCompressed => {
    console.log('on binary data before being compressed.');
}, header => {
    console.log('on save header.');
    header = header;
}, chunk => {
    console.log('on save body chunk.');
    bodyChunks.push(chunk);
});

// write complete sav file back to disk
fs.writeFileSync('./MyModifiedSave.sav', Buffer.concat([header!, ...bodyChunks]));

Usage of Blueprint Parsing

Blueprint parsing works very similiar. Note, that blueprints consist of 2 files. The .sbp main file and the config file .sbpcfg.

import * as fs from 'fs';
import { Parser } from "@etothepii/satisfactory-file-parser";

const mainFile = fs.readFileSync('./MyBlueprint.sbp') as Buffer;
const configFile = fs.readFileSync('./MyBlueprint.sbpcfg') as Buffer;
const parsedBlueprint = Parser.ParseBlueprintFiles('MyBlueprint', mainFile, configFile);

Consequently, writing a blueprint into binary data works the same way with getting callbacks in the same style as the save parsing.

import * as fs from 'fs';
import { Parser } from "@etothepii/satisfactory-file-parser";

let mainFileHeader: Uint8Array, mainFileBodyChunks: Uint8Array[] = [];
const summary = Parser.WriteBlueprintFiles(blueprint, mainFileBinaryBeforeCompressed => {
    console.log('on main file binary data before being compressed.');
}, header => {
    console.log('on main file blueprint header.');
    mainFileHeader = header;
}, chunk => {
    console.log('on main file blueprint body chunk.');
    mainFileBodyChunks.push(chunk);
});

// write complete .sbp file back to disk
fs.writeFileSync('./MyModifiedBlueprint.sbp', Buffer.concat([mainFileHeader!, ...mainFileBodyChunks]));

// write .sbpcfg file back to disk, we get that data from the result of WriteBlueprintFiles
fs.writeFileSync('./MyModifiedSave.sbpcfg', Buffer.from(summary.configFileBinary));

License

MIT

The module's code is free to use and open source.