fixed a bug where list of savefiles won't sort by last play date

src/net/torvald/terrarum/Terrarum.kt

@@ -688,7 +688,8 @@ fun AppUpdateListOfSavegames() {
             e.printStackTrace()
             null
         }
-    }.filter { it != null }.sortedByDescending { (it as VirtualDisk).entries[0]!!.modificationDate }.forEach {
+    }.filter { it != null && it.entries.contains(-1) }
+            .sortedByDescending { (it as VirtualDisk).entries[-1]!!.modificationDate }.forEach {
         App.savegames.add(it!!)
     }
 }

src/net/torvald/terrarum/serialise/GameSavingThread.kt

@@ -142,6 +142,10 @@ class GameSavingThread(val disk: VirtualDisk, val outFile: File, val ingame: Ter
             WriteSavegame.saveProgress += actorProgressMultiplier
         }
 
+
+        disk.entries[0]!!.modificationDate = time_t
+        // entry zero MUST NOT be used to get lastPlayDate, but we'll update it anyway
+        // use entry -1 for that purpose!
         disk.capacity = 0
         VDUtil.dumpToRealMachine(disk, outFile)
 

src/net/torvald/terrarum/serialise/WriteMeta.kt

@@ -29,7 +29,7 @@ object WriteMeta {
                 weatseed1 = WeatherMixer.RNG.state1,
                 playerid = ingame.actorGamer.referenceID,
                 creation_t = ingame.creationTime,
-                lastplay_t = App.getTIME_T(),
+                lastplay_t = time_t,
                 playtime_t = ingame.totalPlayTime + currentPlayTime_t,
                 loadorder = ModMgr.loadOrder.toTypedArray(),
                 worlds = ingame.gameworldIndices.toTypedArray()