Store binary in IndexedDB
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218b9515a7
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@ -1,24 +1,3 @@
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// https://stackoverflow.com/a/9458996
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function _bytesToBase64(bytes) {
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var binary = '';
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var len = bytes.byteLength;
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for (var i = 0; i < len; i++) {
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binary += String.fromCharCode(bytes[i]);
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}
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return window.btoa(binary);
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}
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// https://stackoverflow.com/a/21797381
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function _base64ToBytes(base64) {
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var binary_string = window.atob(base64);
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var len = binary_string.length;
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var bytes = new Uint8Array(len);
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for (var i = 0; i < len; i++) {
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bytes[i] = binary_string.charCodeAt(i);
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}
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return bytes;
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}
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// Canvas used for image generation
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var generationCanvas = document.createElement('canvas')
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window.fileAsyncCache = {};
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@ -109,8 +88,7 @@ window.loadFileAsync = function(fullPath, bitmap, callback) {
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window.saveFile = function(filename) {
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const buf = FS.readFile('/game/' + filename);
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const b64 = _bytesToBase64(buf);
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localforage.setItem(namespace + filename, b64);
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localforage.setItem(namespace + filename, buf);
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localforage.getItem(namespace, function(err, res) {
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if (err || !res) res = {};
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@ -118,7 +96,7 @@ window.saveFile = function(filename) {
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localforage.setItem(namespace, res);
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});
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(window.saveCloudFile || (()=>{}))(filename, buf, b64);
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(window.saveCloudFile || (()=>{}))(filename, buf);
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};
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var loadFiles = function() {
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@ -133,8 +111,11 @@ var loadFiles = function() {
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localforage.getItem(namespace + key, (err, res) => {
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if (err) return;
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const buf = _base64ToBytes(res);
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FS.writeFile('/game/' + key, buf);
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// Don't overwrite existing files
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const fname = '/game/' + key;
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if (FS.analyzePath(fname).exists) return;
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FS.writeFile(fname, res);
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});
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});
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});
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