From d09f06fb26ee712a4b87ea8723a901f12de6f08e Mon Sep 17 00:00:00 2001
From: gsemaj <gentsemaj@live.com>
Date: Thu, 6 May 2021 14:39:09 -0400
Subject: [PATCH] Implement basic rename-based cache switching

---
 assets/js/serverselector.js | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/assets/js/serverselector.js b/assets/js/serverselector.js
index d4c5778..5795b3e 100644
--- a/assets/js/serverselector.js
+++ b/assets/js/serverselector.js
@@ -95,7 +95,36 @@ function loadServerList() {
 function setGameInfo(serverUUID) {
   var result = serverarray.filter(function(obj) {return (obj.uuid === serverUUID);})[0];
   var gameversion = versionarray.filter(function(obj) {return (obj.name === result.version);})[0];
-  window.asseturl = gameversion.url // gameclient.js needs to access this
+  
+  // Cache folder renaming
+  var cachedir = userdir + '\\..\\..\\LocalLow\\Unity\\Web Player\\Cache';
+  var curversion = cachedir + '\\Fusionfall';
+  var newversion = cachedir + '\\' + gameversion.name;
+
+  if (remotefs.existsSync(curversion)) {
+    // cache already exists
+    // find out what version it belongs to
+    if (remotefs.existsSync(userdir + '\\lastver')) {
+      var lastversion = remotefs.readFileSync(userdir + '\\lastver');
+      remotefs.renameSync(curversion, cachedir + '\\' + lastversion);
+      console.log('Cached version ' + lastversion);
+    } else {
+      console.log(
+        "Couldn't find last version record; cache will get overwritten"
+      );
+    }
+  }
+
+  if (remotefs.existsSync(newversion)) {
+    // rename saved cache to FusionFall
+    remotefs.renameSync(newversion, curversion);
+    console.log('Loaded cached ' + gameversion.name);
+  }
+
+  // make note of what version we are launching for next launch
+  remotefs.writeFileSync(userdir + '\\lastver', gameversion.name);
+
+  window.asseturl = gameversion.url; // gameclient.js needs to access this
 
   remotefs.writeFileSync(__dirname+"\\assetInfo.php", asseturl);
   remotefs.writeFileSync(__dirname+"\\loginInfo.php", result.ip);