fixed a bug where a dynamic item would not get saved/loaded at all

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

@@ -23,6 +23,8 @@ class DiskSkimmer(
         noInit: Boolean = false
 ): SimpleFileSystem {
 
+    override fun getBackingFile() = diskFile
+
     /*
 
 init:

src/net/torvald/terrarum/savegame/SimpleFileSystem.kt

@@ -1,5 +1,6 @@
 package net.torvald.terrarum.savegame
 
+import java.io.File
 import java.nio.charset.Charset
 
 /**
@@ -9,4 +10,5 @@ interface SimpleFileSystem {
     fun getEntry(id: EntryID): DiskEntry?
     fun getFile(id: EntryID): EntryFile?
     fun getDiskName(charset: Charset): String
+    fun getBackingFile(): File?
 }

src/net/torvald/terrarum/savegame/VDUtil.kt

@@ -63,7 +63,7 @@ object VDUtil {
         if (diskSpecVersion != specversion)
             throw RuntimeException("Unsupported disk format version: current internal version is $specversion; the file's version is $diskSpecVersion")
 
-        val vdisk = VirtualDisk(diskSize, diskName)
+        val vdisk = VirtualDisk(diskSize, diskName, infile)
 
         vdisk.__internalSetFooter__(footers)
 

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

@@ -2,6 +2,7 @@ package net.torvald.terrarum.savegame
 
 import net.torvald.terrarum.App.printdbg
 import net.torvald.terrarum.serialise.Common
+import java.io.File
 import java.io.IOException
 import java.nio.charset.Charset
 import java.util.*
@@ -125,8 +126,12 @@ val specversion = 254.toByte()
 class VirtualDisk(
         /** capacity of 0 makes the disk read-only */
         var capacity: Long,
-        var diskName: ByteArray = ByteArray(NAME_LENGTH)
+        var diskName: ByteArray = ByteArray(NAME_LENGTH),
+        var origin: File? = null
 ): SimpleFileSystem {
+
+    override fun getBackingFile() = origin
+
     var extraInfoBytes = ByteArray(16)
     val entries = HashMap<EntryID, DiskEntry>()
     var isReadOnly: Boolean

src/net/torvald/terrarum/savegame/finder/VirtualDiskCracker.kt

@@ -1,6 +1,7 @@
 package net.torvald.terrarum.savegame.finder
 
 import net.torvald.terrarum.savegame.*
+import net.torvald.terrarum.serialise.Common
 import java.awt.BorderLayout
 import java.awt.Dimension
 import java.awt.event.KeyEvent
@@ -676,5 +677,5 @@ ${String(file.contents.bytes.sliceArray64(0L..minOf(PREVIEW_MAX_BYTES, file.cont
 }
 
 fun main(args: Array<String>) {
-    VirtualDiskCracker(Charset.forName("CP437"))
+    VirtualDiskCracker(Common.CHARSET)
 }