writing savemode to the savegame binary

src/net/torvald/terrarum/modulebasegame/TerrarumIngame.kt

@@ -291,6 +291,8 @@ open class TerrarumIngame(batch: SpriteBatch) : IngameInstance(batch) {
 
         // by doing this, whatever the "possession" the player had will be broken by the game load
         actorNowPlaying = getActorByID(Terrarum.PLAYER_REF_ID) as IngamePlayer
+
+        makeSavegameBackupCopy() // don't put it on the postInit() or render(); postInitForNewGame calls this function on the savegamewriter's callback
     }
 
     private fun postInitForNewGame() {
@@ -314,7 +316,7 @@ open class TerrarumIngame(batch: SpriteBatch) : IngameInstance(batch) {
 
         // make initial savefile
         WriteSavegame.immediate(savegameArchive, getSaveFileMain(), this) {
-            makeSavegameBackupCopy()
+            makeSavegameBackupCopy() // don't put it on the postInit() or render(); must be called using callback
         }
     }
 

src/net/torvald/terrarum/modulebasegame/console/Save.kt

@@ -53,7 +53,7 @@ object Quicksave : ConsoleCommand {
     override fun execute(args: Array<String>) {
         val ingame = Terrarum.ingame!! as TerrarumIngame
 
-        WriteSavegame.quick(ingame.savegameArchive, ingame.getSaveFileMain(), ingame) {
+        WriteSavegame.quick(ingame.savegameArchive, ingame.getSaveFileMain(), ingame, false) {
 
         }
     }

src/net/torvald/terrarum/modulebasegame/ui/UILoadDemoSavefiles.kt

@@ -359,7 +359,8 @@ class UIItemDemoSaveCells(
         // file size
         App.fontSmallNumbers.draw(batch, "${disk.usedBytes.ushr(10)} KiB", x + 3f, y + height - 16f)
         // savegame name
-        App.fontGame.draw(batch, disk.getDiskNameString(Common.CHARSET), x + 3f, y + 1f)
+        val diskName = disk.getDiskNameString(Common.CHARSET)
+        App.fontGame.draw(batch, diskName + "${if (disk.saveMode % 2 == 1) "*" else ""}", x + 3f, y + 1f)
 
         super.render(batch, camera)
         batch.color = Color.WHITE

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

@@ -8,6 +8,7 @@ import net.torvald.terrarum.console.Echo
 import net.torvald.terrarum.modulebasegame.IngameRenderer
 import net.torvald.terrarum.modulebasegame.TerrarumIngame
 import net.torvald.terrarum.realestate.LandUtil
+import net.torvald.terrarum.toInt
 import net.torvald.terrarum.tvda.*
 import java.io.File
 import java.util.zip.GZIPOutputStream
@@ -15,7 +16,7 @@ import java.util.zip.GZIPOutputStream
 /**
  * Created by minjaesong on 2021-09-29.
  */
-class QuickSaveThread(val disk: VirtualDisk, val file: File, val ingame: TerrarumIngame, val hasThumbnail: Boolean, val callback: () -> Unit) : Runnable {
+class QuickSaveThread(val disk: VirtualDisk, val file: File, val ingame: TerrarumIngame, val hasThumbnail: Boolean, val isAuto: Boolean, val callback: () -> Unit) : Runnable {
 
     /**
      * Will happily overwrite existing entry
@@ -130,14 +131,14 @@ class QuickSaveThread(val disk: VirtualDisk, val file: File, val ingame: Terraru
 
         skimmer.rewriteDirectories()
         skimmer.injectDiskCRC(disk.hashCode())
-
+        skimmer.setSaveMode(1 + 2 * isAuto.toInt())
 
         Echo ("${ccW}Game saved with size of $ccG${file.length()}$ccW bytes")
 
 
         if (hasThumbnail) IngameRenderer.fboRGBexportedLatch = false
         WriteSavegame.savingStatus = 255
-        ingame.modifiedChunks.forEach { it.clear() }
+        ingame.clearModifiedChunks()
 
         callback()
     }

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

@@ -68,7 +68,7 @@ object WriteSavegame {
         // use field 'savingStatus' to know when the saving is done
     }
 
-    fun quick(disk: VirtualDisk, file: File, ingame: TerrarumIngame, callback: () -> Unit = {}) {
+    fun quick(disk: VirtualDisk, file: File, ingame: TerrarumIngame, isAuto: Boolean, callback: () -> Unit = {}) {
         savingStatus = 0
 
         Echo("Quicksave queued")
@@ -88,7 +88,7 @@ object WriteSavegame {
         }
         IngameRenderer.fboRGBexportRequested = true
 
-        val savingThread = Thread(QuickSaveThread(disk, file, ingame, true, callback), "TerrarumBasegameGameSaveThread")
+        val savingThread = Thread(QuickSaveThread(disk, file, ingame, true, isAuto, callback), "TerrarumBasegameGameSaveThread")
         savingThread.start()
 
         // it is caller's job to keep the game paused or keep a "save in progress" ui up

src/net/torvald/terrarum/tvda/DiskSkimmer.kt

@@ -301,6 +301,11 @@ removefile:
         }
     }
 
+    fun setSaveMode(bits: Int) {
+        fa.seek(49L)
+        fa.writeByte(bits)
+    }
+
     ///////////////////////////////////////////////////////
     // THESE ARE METHODS TO SUPPORT ON-LINE MODIFICATION //
     ///////////////////////////////////////////////////////

src/net/torvald/terrarum/tvda/VirtualDisk.kt

@@ -64,7 +64,10 @@ Version 254 is a customised version of TEVD tailored to be used as a savegame fo
     Int8        0xFE
     Int8        Disk properties flag 1
                 0th bit: readonly
-    Int8[15]    Extra info bytes
+    Int8        Save type
+                0th bit: unset - full save; set - quick save
+                1st bit: set - generated by autosave
+    Int8[14]    Extra info bytes
     Unit8[236]  Rest of the long disk name (268 bytes total)
 
     (Header size: 300 bytes)
@@ -127,6 +130,9 @@ class VirtualDisk(
     var isReadOnly: Boolean
         set(value) { extraInfoBytes[0] = (extraInfoBytes[0] and 0xFE.toByte()) or value.toBit() }
         get() = capacity == 0L || (extraInfoBytes.size > 0 && extraInfoBytes[0].and(1) == 1.toByte())
+    var saveMode: Int
+        set(value) { extraInfoBytes[1] = value.toByte() }
+        get() = extraInfoBytes[1].toUint()
     fun getDiskNameString(charset: Charset) = diskName.toCanonicalString(charset)
     val root: DiskEntry
         get() = entries[0]!!