Initial Commit

This commit is contained in:
Lordmau5 2020-12-09 21:28:07 +01:00
parent a88d29e7b9
commit a57ef32633
7 changed files with 278 additions and 1 deletions

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node_modules
game_input/*
game_output/*
mogg_input/*
mogg_output/*
tmp/*

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Fuser-Stem-Replacement-Tool # Fuser Stem Replacement Tool
1. Figure out which song you want to replace stems of
2. Get it's BPM
3. Prepare your own stem / song with that same BPM
4. Make sure it's **exactly** 32 bars long and optimally loops well
5. Export it as an `.ogg` file into the `mogg_input` folder
6. Copy the corresponding `.uexp` and `.uasset` file combination into the `game_input` folder
7. Run `npm start <ogg_without_extension> <game_file_without_extension>`
8. Copy the corresponding files from `game_output` into the `pakfiles` folder you have setup with the old game files and overwrite them
9. Build the new DLC `.pak` file
10. Replace it in the `Fuser/Fuser/DLC/Songs` directory
## Example (DK Rap => Adore You, 99 BPM, Vocals)
`npm start dk_rap adoreyou_lead_eb_99_fusion`

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const fs = require('fs');
const execFile = require('child_process').execFile;
const path = require('path');
const rimraf = require('rimraf');
rimraf.sync('tmp');
const mkdirp = require('mkdirp');
mkdirp.sync('tmp');
mkdirp.sync('mogg_input');
mkdirp.sync('mogg_output');
mkdirp.sync('game_input');
mkdirp.sync('game_output');
const fileExists = async path => !!(await fs.promises.stat(path).catch(e => false));
const readFile = async path => await fs.promises.readFile(path);
async function moggify() {
const files = await fs.promises.readdir('mogg_input');
for(const file of files) {
console.log(file);
const from = path.join('mogg_input', file);
const tmp = path.join('tmp', path.parse(file).name + '.mogg');
const to = path.join('mogg_output', path.parse(file).name + '.mogg');
await new Promise(resolve => {
execFile('ogg2mogg.exe', [from, tmp], () => {
execFile('MoggcryptCpp.exe', [tmp, '-e', to], () => {
resolve();
});
});
})
}
}
async function replace() {
if (process.argv.length !== 4) {
console.error('Usage: node replace.js <input_mogg_file> <input_game_file>');
console.log('(No file extensions)');
return;
}
const mogg_file = process.argv[2] + '.mogg';
const game_file = process.argv[3];
const mogg_exists = await fileExists(`mogg_output/${mogg_file}`);
const uexp_exists = await fileExists(`game_input/${game_file}.uexp`);
const uasset_exists = await fileExists(`game_input/${game_file}.uasset`);
if (!mogg_exists) {
console.error(`Couldn't find the .mogg file '${mogg_file}'.`);
return;
}
if (!uexp_exists || !uasset_exists) {
console.error(`Couldn't find a .uexp and .uasset combo for '${game_file}'.`);
return;
}
const out_uexp = path.join('game_output', game_file + '.uexp');
const out_uasset = path.join('game_output', game_file + '.uasset');
// Read .mogg
const mogg_buffer = await readFile(`mogg_output/${mogg_file}`);
console.log('Mogg', mogg_buffer);
// Modify .uexp
const data_buffer = await readFile(`game_input/${game_file}.uexp`);
const old_uexp_length = data_buffer.length;
const start_offset = data_buffer.indexOf('MoggSampleResource') + 19;
console.log('uexp', data_buffer);
console.log('uexp length', old_uexp_length);
// Write new MOGG Buffer length + 32 to offset start_offset
data_buffer.writeInt32LE(mogg_buffer.length + 32, start_offset);
// Write new MOGG Buffer length to offset start_offset + 36, store old for buffering
const old_1_length = data_buffer.readInt32LE(start_offset + 36);
console.log("Old 1 length", old_1_length);
data_buffer.writeInt32LE(mogg_buffer.length, start_offset + 36);
console.log("New 1 length", data_buffer.readInt32LE(start_offset + 36));
// Insert MOGG at start_offset + 36 + 4, then offset to the new position
const pre_buffer_1 = data_buffer.slice(0, start_offset + 36 + 4);
const post_buffer_1 = data_buffer.slice(start_offset + 36 + 4 + old_1_length);
// Concat buffers
const song_1_insert_buffer = Buffer.concat([pre_buffer_1, mogg_buffer, post_buffer_1]);
// Only replace 2nd MoggSampleResource if numResourceFiles === 3
let final_buffer = song_1_insert_buffer;
const filenameLength = final_buffer.readInt16LE(28);
const numResourceFiles = final_buffer.readInt16LE(28 + filenameLength + 12);
console.log(final_buffer.length);
if (numResourceFiles === 3) {
const new_offset = song_1_insert_buffer.indexOf('MoggSampleResource', mogg_buffer.length) + 19;
console.log("New Offset", new_offset);
console.log("InsertBufferLength", song_1_insert_buffer.length);
// Write new MOGG Buffer length + 32 to offset new_offset
song_1_insert_buffer.writeInt32LE(mogg_buffer.length + 32, new_offset);
// Write new MOGG Buffer length to offset new_offset + 36, store old for buffering
const old_2_length = song_1_insert_buffer.readInt32LE(new_offset + 36);
console.log("Old 2 length", old_2_length);
song_1_insert_buffer.writeInt32LE(mogg_buffer.length, new_offset + 36);
console.log("New 2 length", song_1_insert_buffer.readInt32LE(new_offset + 36));
// Insert MOGG at new_offset + 36 + 4, then offset to the new position
const pre_buffer_2 = song_1_insert_buffer.slice(0, new_offset + 36 + 4);
const post_buffer_2 = song_1_insert_buffer.slice(new_offset + 36 + 4 + old_2_length);
// Concat buffers
final_buffer = Buffer.concat([pre_buffer_2, mogg_buffer, post_buffer_2]);
}
// Finally, write
await fs.promises.writeFile(out_uexp, final_buffer);
// Modify .uasset
const uasset_buffer = await readFile(`game_input/${game_file}.uasset`);
console.log('Uassetbuffer', uasset_buffer);
const update_size_offset = uasset_buffer.lastIndexOf(old_uexp_length - 4);
console.log("Update size offset", update_size_offset);
uasset_buffer.writeInt32LE(final_buffer.length - 4, update_size_offset);
// Finally, write
await fs.promises.writeFile(out_uasset, uasset_buffer);
}
moggify().then(replace);

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{
"name": "fusermod",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"start": "node index.js",
"moggify": "node moggify.js",
"replace": "node replace.js"
},
"author": "",
"license": "ISC",
"dependencies": {
"mkdirp": "^1.0.4",
"rimraf": "^3.0.2",
"underscore": "^1.12.0"
}
}