Exports and imports the savegame.dat of Tomb Raider OpenLara from IndexedDB
// ==UserScript==
// @name Export and import a save game of Tomb Raider OpenLara
// @namespace Savegame
// @version 0.2
// @description Exports and imports the savegame.dat of Tomb Raider OpenLara from IndexedDB
// @license MIT
// @match http://www.xproger.info/projects/OpenLara/
// @grant none
// ==/UserScript==
(function() {
'use strict';
function importDatabase() {
console.log('importDatabase');
// open the db database with the version 22
const request = indexedDB.open('db', 22);
// handle the success event
request.onsuccess = (event) => {
const db = event.target.result;
const database_transaction = db.transaction('FILE_DATA', 'readwrite');
const store = database_transaction.objectStore('FILE_DATA');
const savegameBlob = new Uint8Array([
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]);
let query = store.put(savegameBlob, "savegame.dat");
query.onsuccess = (event) => {
alert("Savegame data added. Reload the page.");
}
database_transaction.oncomplete = function () {
db.close();
};
}
}
// export database
function exportDatabase() {
console.log('exportDatabase');
// open the db database with the version 22
const request = indexedDB.open('db', 22);
// handle the success event
request.onsuccess = (event) => {
const db = event.target.result;
const database_transaction = db.transaction('FILE_DATA', 'readonly');
const store = database_transaction.objectStore('FILE_DATA');
let query = store.get("savegame.dat");
query.onsuccess = (event) => {
if (!event.target.result) {
console.log("savegame.dat not found");
} else {
console.log(event.target.result);
const uint8Array = new Uint8Array(event.target.result);
const blob = new Blob([uint8Array], { type: 'application/octet-stream' });
const downloadLink = document.createElement("a");
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = "savegame.dat";
downloadLink.click();
}
};
query.onerror = (event) => {
console.log(event.target.errorCode);
}
database_transaction.oncomplete = function () {
db.close();
};
}
}
// create a button
var button = document.createElement('button');
button.innerHTML = 'Export';
button.style.position = 'relative';
// add button
document.body.appendChild(button);
// add event listener
button.addEventListener('click', exportDatabase);
// create an import button
var button2 = document.createElement('button');
button2.innerHTML = 'Import';
button2.style.position = 'relative';
// add button
document.body.appendChild(button2);
// add event listener
button2.addEventListener('click', importDatabase);
})();