Fixed Optifine downloader

Author: FabiPunktExe

package.json

@@ -1,6 +1,6 @@
 {
   "name": "simplelauncher",
-  "version": "0.3.19",
+  "version": "0.3.20",
   "description": "Launcher for SimpleClient",
   "main": "src/main.js",
   "scripts": {

src/download/moddownloader.js

@@ -6,7 +6,10 @@ const log = (...data) => console.log('[Mods Download] ' + data)
 
 const downloadMods = (version, callback) => {
     const dir = join(getDirectory(), 'versions', version.id, 'mods')
-    const mods = version.mods.map(mod => [mod, join(dir, mod.split('/')[mod.split('/').length - 1])])
+    const mods = version.mods.map(mod => {
+        if (typeof mod === 'string') return [mod, join(dir, mod.split('/')[mod.split('/').length - 1])]
+        else return [mod.url, join(dir, mod.filename)]
+    })
     downloadFilesAsync(mods, undefined, log, callback)
 }