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Improve Compression from Generator without CompressionStreams #60

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01ea689
Get JSZip Compression Working
zalo May 9, 2025
7cdcc2b
Simplify the base64 translation
zalo May 9, 2025
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17 changes: 7 additions & 10 deletions public/js/main.js
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Original file line number Diff line number Diff line change
Expand Up @@ -159,7 +159,9 @@ function editorMain() {
fileData += ' </script>\n <script src="' + data['EJS_pathtodata'] + 'loader.js"></script>\n </body>\n</html>';
} else if (document.getElementById('offlinePack').checked) {
data['EJS_gameUrl'] = 'new Blob([Uint8Array.from(atob(window.gameData), (m) => m.codePointAt(0))])';
var b = bytesToBase64(new Uint8Array(await (new Blob([file])).arrayBuffer()));
let tempZip = new JSZip();
tempZip.file(file.name, new Blob([file]));
var b = await tempZip.generateAsync({ type: 'base64', compression: "DEFLATE"});
var a = spaces + 'window.gameData = `' + b + '`;\n';
fileData += a;
for (var k in data) {
Expand All @@ -173,7 +175,9 @@ function editorMain() {
zipOut = false;
} else {
data['EJS_gameUrl'] = 'new Blob([Uint8Array.from(atob(window.gameData), (m) => m.codePointAt(0))])';
var b = bytesToBase64(new Uint8Array(await (new Blob([file])).arrayBuffer()));
let tempZip = new JSZip();
tempZip.file(file.name, new Blob([file]));
var b = await tempZip.generateAsync({ type: 'base64', compression: "DEFLATE"});
zip.file('gameData.js', 'window.gameData = `' + b + '`\n');
for (var k in data) {
if (data[k] === true || data[k] === false || k === 'EJS_gameUrl') {
Expand All @@ -194,7 +198,7 @@ function editorMain() {
zip.file('index.html', new Blob([fileData]));
document.getElementById('select2').style = 'display:none;';
document.getElementById('zipStatus').style = 'display:block;';
zip.generateAsync({ type: 'blob' }, function updateCallback(metadata) {
zip.generateAsync({ type: 'blob', compression: "DEFLATE" }, function updateCallback(metadata) {
var zipStatus = metadata.percent.toFixed(2) + '%';
document.getElementById('zs1').innerHTML = ' ' + zipStatus + ' ';
document.getElementById('zs1').value = metadata.percent.toFixed(2);
Expand Down Expand Up @@ -265,10 +269,3 @@ function copy(textareaId) {
textarea.select();
document.execCommand('copy');
}

function bytesToBase64(bytes) {
const binString = Array.from(bytes, (byte) =>
String.fromCodePoint(byte),
).join("");
return btoa(binString);
}