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Prepping save file support

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This commit is contained in:
Dominic Masters
2025-03-17 15:46:35 -05:00
parent 85615121b2
commit 4be5dadb24
3 changed files with 39 additions and 14 deletions
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32
public/emulator.html
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@ -25,6 +25,7 @@
display: none !important;
}
</style>
<script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/4.2.0/crypto-js.min.js" integrity="sha512-a+SUDuwNzXDvz4XrIcXHuCf089/iJAoN4lmrXJg18XnduKK6YlDHNRalv4yd1N40OKI80tFidF+rqTFKGPoWFQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
</head>
<body>
@ -85,6 +86,29 @@
clearInterval(initInterval);
}
const md5File = async path => {
const buffer = EJS_emulator.gameManager.FS.readFile(path);
const hash = await crypto.subtle.digest('SHA-256', buffer);
const hashArray = Array.from(new Uint8Array(hash));
const hashHex = hashArray.map(b => b.toString(16).padStart(2, '0')).join('');
return hashHex;
}
const emulatorSave = async () => {
// First, we get the currently saved MD5 hash of all files in the save
// directory
const contents = EJS_emulator.gameManager.FS.readdir('/homeplay/saves').filter(f => !f.startsWith('.'));
const hashes = await Promise.all(contents.map(f => md5File(`/homeplay/saves/${f}`)));
EJS_emulator.gameManager.saveSaveFiles();
const newHashes = await Promise.all(contents.map(f => md5File(`/homeplay/saves/${f}`)));
const changedFiles = contents.filter((f, i) => hashes[i] !== newHashes[i]);
console.log('Changed files', changedFiles);
send({
message: ''
})
}
const send = data => {
window.parent.postMessage(data, '*');
}
@ -107,6 +131,10 @@
EJS_emulator.setVolume(data.volume);
break;
case 'save':
emulatorSave();
break;
default:
console.error('Unknown message', message);
}
@ -142,11 +170,11 @@
}
EJS_onSaveState = () => {
send({ message: 'save' });
send({ message: 'save_state' });
}
EJS_onLoadState = () => {
send({ message: 'load' });
send({ message: 'load_state' });
}
EJS_onGameStart = () => {