diff --git a/assets/mods/dwarventech/gui/8025_textonly.png b/assets/mods/dwarventech/gui/8025_textonly.png
new file mode 100644
index 000000000..b30544818
Binary files /dev/null and b/assets/mods/dwarventech/gui/8025_textonly.png differ
diff --git a/assets/mods/dwarventech/gui/lcd.tga b/assets/mods/dwarventech/gui/lcd.tga
new file mode 100644
index 000000000..a4a198fc8
--- /dev/null
+++ b/assets/mods/dwarventech/gui/lcd.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eba17f40ff7abde992fee06e144f9fc70509718f8264130dc2c7c35f7eb1e98f
+size 393260
diff --git a/assets/mods/dwarventech/gui/led_green.tga b/assets/mods/dwarventech/gui/led_green.tga
new file mode 100644
index 000000000..78fac3407
--- /dev/null
+++ b/assets/mods/dwarventech/gui/led_green.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:178666ed8487459ea2224403ef514675bce512b9e1b3b6dc40005dd50be0097e
+size 92
diff --git a/assets/mods/dwarventech/gui/led_orange.tga b/assets/mods/dwarventech/gui/led_orange.tga
new file mode 100644
index 000000000..2d82a668b
--- /dev/null
+++ b/assets/mods/dwarventech/gui/led_orange.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a88960a47ce99c1fc04790fcda9c90f5899eca7c71d685291c0730ccefe61258
+size 92
diff --git a/src/net/torvald/UnsafePtr.kt b/src/net/torvald/UnsafePtr.kt
index 57f6b9228..06bae25b7 100644
--- a/src/net/torvald/UnsafePtr.kt
+++ b/src/net/torvald/UnsafePtr.kt
@@ -30,6 +30,8 @@ object UnsafeHelper {
     }
 
     fun memcpy(srcAddress: Long, destAddress: Long, copyLength: Long) = unsafe.copyMemory(srcAddress, destAddress, copyLength)
+
+    fun memcpyRaw(srcObj: Any?, srcPos: Long, destObj: Any?, destPos: Long, len: Long) = unsafe.copyMemory(srcObj, srcPos, destObj, destPos, len)
 }
 
 /**
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/computer/LuaComputerVM.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/computer/LuaComputerVM.kt
new file mode 100644
index 000000000..e316d4d4e
--- /dev/null
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/computer/LuaComputerVM.kt
@@ -0,0 +1,9 @@
+package net.torvald.terrarum.modulecomputers.virtualcomputer.computer
+
+/**
+ * New plan: screw teletype and gui; only the simple 80*24 (size may mary) dumb terminal
+ *
+ * Created by minjaesong on 2019-07-09.
+ */
+class LuaComputerVM {
+}
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/computer/MDA.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/computer/MDA.kt
new file mode 100644
index 000000000..3a926a9f5
--- /dev/null
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/computer/MDA.kt
@@ -0,0 +1,100 @@
+package net.torvald.terrarum.modulecomputers.virtualcomputer.computer
+
+import net.torvald.UnsafeHelper
+import net.torvald.terrarum.gameworld.fmod
+
+/**
+ * Only one kind of display adapter should exist in the game: they add nothing to the game and the game
+ * shouldn't put much emphasis on computers anyway.
+ *
+ * The actual draw code must not exist in this class!
+ *
+ * Created by minjaesong on 2019-07-09.
+ */
+class MDA(val width: Int, val height: Int) {
+
+    init {
+        if (width % 2 == 1) throw IllegalArgumentException("Display width must be an even number (width = $width)")
+    }
+
+    private val glyphs = UnsafeHelper.allocate(width.toLong() * height)
+    private val attributes = UnsafeHelper.allocate(width.toLong() * height)
+
+    var cursor = 0
+        private set
+    var background = 0
+    var foreground = 1
+    var blink = true
+
+    init {
+        glyphs.fillWith(0)
+        attributes.fillWith(1)
+    }
+
+    /*
+    Attibutes memory map:
+
+    for every byte:
+
+    (msb) 0000 bbff (lsb)
+
+    where:
+
+    bb: background colour
+    ff: foreground colour
+
+    Colours:
+
+    0: black
+    1: light grey
+    2: dark grey
+    3: white
+
+     */
+
+    private fun wrapAround(x: Int, y: Int) = (x fmod width) to (y fmod height)
+    private fun toAddress(x: Int, y: Int) = (y * width + x).toLong()
+    inline private fun Pair<Int, Int>.toAddress() = toAddress(this.first, this.second)
+
+    fun rawGet(offset: Int) = glyphs[offset.toLong()] to attributes[offset.toLong()]
+
+    fun get(x: Int, y: Int): Pair<Byte, Byte> {
+        val a = wrapAround(x, y).toAddress()
+        return glyphs[a] to attributes[a]
+    }
+
+    fun set(x: Int, y: Int, glyph: Byte, attribute: Byte) {
+        val a = wrapAround(x, y).toAddress()
+        glyphs[a] = glyph
+        attributes[a] = attribute
+    }
+
+    fun setCursor(x: Int, y: Int) {
+        cursor = wrapAround(x, y).toAddress().toInt()
+    }
+
+
+    fun setText(x: Int, y: Int, text: ByteArray, attirbute: ByteArray) {
+        UnsafeHelper.memcpyRaw(text, 0, null, glyphs.ptr + wrapAround(x, y).toAddress(), text.size.toLong())
+        UnsafeHelper.memcpyRaw(attirbute, 0, null, attributes.ptr + wrapAround(x, y).toAddress(), text.size.toLong())
+    }
+
+    fun setText(x: Int, y: Int, text: ByteArray, attribute: Byte) {
+        setText(x, y, text)
+        val a = wrapAround(x, y).toAddress()
+        for (i in 0 until text.size) {
+            attributes[a + i] = attribute
+        }
+    }
+
+    fun setText(x: Int, y: Int, text: ByteArray) {
+        setText(x, y, text, (background.shl(0b11) or foreground).toByte())
+    }
+
+
+
+    fun dispose() {
+        glyphs.destroy()
+        attributes.destroy()
+    }
+}
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/computer/TerrarumComputer.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/computer/TerrarumComputerOld.kt.txt
similarity index 97%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/computer/TerrarumComputer.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/computer/TerrarumComputerOld.kt.txt
index 9092c9723..76029435f 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/computer/TerrarumComputer.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/computer/TerrarumComputerOld.kt.txt
@@ -1,5 +1,12 @@
 package net.torvald.terrarum.modulecomputers.virtualcomputer.computer
 
+import net.torvald.terrarum.KVHashMap
+import net.torvald.terrarum.Second
+import net.torvald.terrarum.Terrarum
+import net.torvald.terrarum.ceilInt
+import net.torvald.terrarum.modulecomputers.virtualcomputer.tvd.VDUtil
+import net.torvald.terrarum.modulecomputers.virtualcomputer.tvd.VirtualDisk
+import net.torvald.terrarum.modulecomputers.virtualcomputer.worldobject.ComputerPartsCodex
 import org.luaj.vm2.Globals
 import org.luaj.vm2.LuaError
 import org.luaj.vm2.LuaTable
@@ -7,13 +14,6 @@ import org.luaj.vm2.LuaValue
 import org.luaj.vm2.lib.TwoArgFunction
 import org.luaj.vm2.lib.ZeroArgFunction
 import org.luaj.vm2.lib.jse.JsePlatform
-import net.torvald.terrarum.KVHashMap
-import net.torvald.terrarum.Terrarum
-import net.torvald.terrarum.Second
-import net.torvald.terrarum.ceilInt
-import net.torvald.terrarum.modulecomputers.virtualcomputer.tvd.VDUtil
-import net.torvald.terrarum.modulecomputers.virtualcomputer.tvd.VirtualDisk
-import net.torvald.terrarum.modulecomputers.virtualcomputer.worldobject.ComputerPartsCodex
 import org.lwjgl.BufferUtils
 import org.lwjgl.openal.AL10
 import java.io.*
@@ -30,7 +30,7 @@ import kotlin.collections.HashMap
  * @param term : terminal that is connected to the computer fixtures, null if not connected any.
  * Created by minjaesong on 2016-09-10.
  */
-class TerrarumComputer(peripheralSlots: Int) {
+class TerrarumComputerOldOld(peripheralSlots: Int) {
 
     val DEBUG_UNLIMITED_MEM = false
     val DEBUG = true
@@ -161,7 +161,7 @@ class TerrarumComputer(peripheralSlots: Int) {
         if (peripheralTable[slot] == null) {
             peripheralTable[slot] = peri
             peri.loadLib(luaJ_globals)
-            println("[TerrarumComputer] loading peripheral $peri")
+            println("[TerrarumComputerOld] loading peripheral $peri")
         }
         else {
             throw RuntimeException("Peripheral slot is already taken by: ${peripheralTable[slot]?.tableName}")
@@ -179,7 +179,7 @@ class TerrarumComputer(peripheralSlots: Int) {
         }
         if (found >= 0) {
             peripheralTable[found] = null
-            println("[TerrarumComputer] unloading peripheral $peri")
+            println("[TerrarumComputerOld] unloading peripheral $peri")
         }
         else {
             throw IllegalArgumentException("Peripheral not exists: $peri")
@@ -383,13 +383,13 @@ class TerrarumComputer(peripheralSlots: Int) {
         }
     }
 
-    class LuaFunGetTotalMem(val computer: TerrarumComputer) : ZeroArgFunction() {
+    class LuaFunGetTotalMem(val computer: TerrarumComputerOldOld) : ZeroArgFunction() {
         override fun call(): LuaValue {
             return LuaValue.valueOf(computer.memSize)
         }
     }
 
-    class ComputerEmitTone(val computer: TerrarumComputer) : TwoArgFunction() {
+    class ComputerEmitTone(val computer: TerrarumComputerOldOld) : TwoArgFunction() {
         override fun call(millisec: LuaValue, freq: LuaValue): LuaValue {
             computer.playTone(millisec.checkdouble().toFloat(), freq.checkdouble())
             return LuaValue.NONE
@@ -447,7 +447,7 @@ class TerrarumComputer(peripheralSlots: Int) {
 
         //AL.destroy()
 
-        if (DEBUG) println("[TerrarumComputer] !! Beep queue clear")
+        if (DEBUG) println("[TerrarumComputerOld] !! Beep queue clear")
     }
 
     fun enqueueBeep(duration: Double, freq: Double) {
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemDir.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemDir.kt.txt
similarity index 95%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemDir.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemDir.kt.txt
index d5fd5bb6f..b2c44ae59 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemDir.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemDir.kt.txt
@@ -5,7 +5,7 @@ import org.luaj.vm2.lib.OneArgFunction
 import org.luaj.vm2.lib.TwoArgFunction
 import org.luaj.vm2.lib.ZeroArgFunction
 import net.torvald.terrarum.Terrarum
-import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer
+import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld
 import net.torvald.terrarum.modulecomputers.virtualcomputer.luaapi.Term.Companion.checkIBM437
 import java.io.*
 import java.nio.file.Files
@@ -27,7 +27,7 @@ import java.util.*
  *      Use .absoluteFile whenever possible; there's fuckin oddity! (http://bugs.java.com/bugdatabase/view_bug.do;:YfiG?bug_id=4483097)
  */
 @Deprecated("Fuck permission and shit, we go virtual. Use FilesystemTar")
-internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) {
+internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) {
 
     init {
         // load things. WARNING: THIS IS MANUAL!
@@ -102,7 +102,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
         /** actual directory: <appdata>/Saves/<savename>/computers/<drivename>/
          * directs media/ directory to /<uuid> directory
          */
-        fun net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer.getRealPath(luapath: LuaValue) : String {
+        fun net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld.getRealPath(luapath: LuaValue) : String {
             // direct mounted paths to real path
             val computerDir = Terrarum.currentSaveDir.absolutePath + "/computers/"
             /* if not begins with "(/?)media/", direct to boot
@@ -147,7 +147,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
      *
      * actual directory: <appdata>/Saves/<savename>/computers/<drivename>/
      */
-    class ListFiles(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class ListFiles(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             FilesystemDir.ensurePathSanity(path)
 
@@ -164,7 +164,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
     }
 
     /** Don't use this. Use isFile */
-    class FileExists(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class FileExists(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             FilesystemDir.ensurePathSanity(path)
 
@@ -172,7 +172,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
         }
     }
 
-    class IsDirectory(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class IsDirectory(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             FilesystemDir.ensurePathSanity(path)
 
@@ -183,7 +183,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
         }
     }
 
-    class IsFile(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class IsFile(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             FilesystemDir.ensurePathSanity(path)
 
@@ -207,7 +207,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
         }
     }
 
-    class IsReadOnly(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class IsReadOnly(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             FilesystemDir.ensurePathSanity(path)
 
@@ -216,7 +216,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
     }
 
     /** we have 4GB file size limit */
-    class GetSize(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class GetSize(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             FilesystemDir.ensurePathSanity(path)
 
@@ -229,7 +229,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
     /**
      * difference with ComputerCraft: it returns boolean, true on successful.
      */
-    class Mkdir(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class Mkdir(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             FilesystemDir.ensurePathSanity(path)
 
@@ -240,7 +240,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
     /**
      * moves a directory, overwrites the target
      */
-    class Mv(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : TwoArgFunction() {
+    class Mv(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : TwoArgFunction() {
         override fun call(from: LuaValue, to: LuaValue) : LuaValue {
             FilesystemDir.ensurePathSanity(from)
             FilesystemDir.ensurePathSanity(to)
@@ -259,7 +259,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
      * copies a directory, overwrites the target
      * difference with ComputerCraft: it returns boolean, true on successful.
      */
-    class Cp(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : TwoArgFunction() {
+    class Cp(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : TwoArgFunction() {
         override fun call(from: LuaValue, to: LuaValue) : LuaValue {
             FilesystemDir.ensurePathSanity(from)
             FilesystemDir.ensurePathSanity(to)
@@ -275,7 +275,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
     /**
      * difference with ComputerCraft: it returns boolean, true on successful.
      */
-    class Rm(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class Rm(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             FilesystemDir.ensurePathSanity(path)
 
@@ -285,7 +285,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
         }
     }
 
-    class ConcatPath(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : TwoArgFunction() {
+    class ConcatPath(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : TwoArgFunction() {
         override fun call(base: LuaValue, local: LuaValue) : LuaValue {
             FilesystemDir.ensurePathSanity(base)
             FilesystemDir.ensurePathSanity(local)
@@ -321,7 +321,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
      *      writeBytes = function(string as bytearray)
      * }
      */
-    class OpenFile(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : TwoArgFunction() {
+    class OpenFile(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : TwoArgFunction() {
         override fun call(path: LuaValue, mode: LuaValue) : LuaValue {
             FilesystemDir.ensurePathSanity(path)
 
@@ -401,7 +401,7 @@ internal class FilesystemDir(globals: Globals, computer: net.torvald.terrarum.mo
         }
     }
 
-    class GetParentDir(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class GetParentDir(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             FilesystemDir.ensurePathSanity(path)
 
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemFactory.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemFactory.kt.txt
similarity index 100%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemFactory.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemFactory.kt.txt
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemTEVD.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemTEVD.kt.txt
similarity index 94%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemTEVD.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemTEVD.kt.txt
index 089f578d6..a133ea446 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemTEVD.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/FilesystemTEVD.kt.txt
@@ -22,7 +22,7 @@ import java.util.*
  *      Don't convert '\' to '/'! Rev-slash is used for escape character in sh, and we're sh-compatible!
  *      Use .absoluteFile whenever possible; there's fuckin oddity! (http://bugs.java.com/bugdatabase/view_bug.do;:YfiG?bug_id=4483097)
  */
-internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) {
+internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) {
 
     /*init {
         // load things. WARNING: THIS IS MANUAL!
@@ -83,7 +83,7 @@ internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modul
          * computer.diskRack[SOMEUUID]->subpath
          * else, computer.diskRack["hda"]->subpath
          */
-        fun net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer.getFile(path: VDPath) : DiskEntry? {
+        fun net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld.getFile(path: VDPath) : DiskEntry? {
             val disk = this.getTargetDisk(path)
 
             if (disk == null) return null
@@ -98,7 +98,7 @@ internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modul
          * computer.diskRack["fd1"]
          * else, computer.diskRack[<boot device>]
          */
-        fun net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer.getTargetDisk(path: VDPath) : VirtualDisk? {
+        fun net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld.getTargetDisk(path: VDPath) : VirtualDisk? {
             if (path.hierarchy.size >= 2 &&
                     Arrays.equals(path[0], "media".toEntryName(DiskEntry.NAME_LENGTH, sysCharset))) {
                 val diskName = path[1].toCanonicalString(sysCharset)
@@ -111,7 +111,7 @@ internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modul
             }
         }
 
-        fun net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer.getDirectoryEntries(path: VDPath) : Array<DiskEntry>? {
+        fun net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld.getDirectoryEntries(path: VDPath) : Array<DiskEntry>? {
             val directory = this.getFile(path)
 
             if (directory == null) return null
@@ -140,7 +140,7 @@ internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modul
      *
      * actual directory: <appdata>/Saves/<savename>/computers/<drivename>/
      */
-    class ListFiles(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class ListFiles(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             val path = VDPath(path.checkPath(), sysCharset)
 
@@ -157,7 +157,7 @@ internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modul
         }
     }
 
-    class FileExists(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class FileExists(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             val path = VDPath(path.checkPath(), sysCharset)
             val disk = computer.getTargetDisk(path)
@@ -170,28 +170,28 @@ internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modul
         }
     }
 
-    class IsDirectory(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class IsDirectory(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             val path = VDPath(path.checkPath(), sysCharset)
             return LuaValue.valueOf(computer.getFile(path)?.contents is EntryDirectory)
         }
     }
 
-    class IsFile(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class IsFile(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             val path = VDPath(path.checkPath(), sysCharset)
             return LuaValue.valueOf(computer.getFile(path)?.contents is EntryFile)
         }
     }
 
-    class IsReadOnly(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class IsReadOnly(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             return LuaValue.valueOf(false)
         }
     }
 
     /** we have 2 GB file size limit */
-    class GetSize(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class GetSize(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             val path = VDUtil.VDPath(path.checkPath(), sysCharset)
             val file = computer.getFile(path)
@@ -213,7 +213,7 @@ internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modul
     /**
      * returns true on success
      */
-    class Mkdir(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class Mkdir(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             return tryBool {
                 val path = VDPath(path.checkPath(), sysCharset)
@@ -241,7 +241,7 @@ internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modul
     /**
      * moves a directory, overwrites the target
      */
-    class Mv(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : TwoArgFunction() {
+    class Mv(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : TwoArgFunction() {
         override fun call(from: LuaValue, to: LuaValue) : LuaValue {
             return tryBool {
                 val pathFrom = VDPath(from.checkPath(), sysCharset)
@@ -258,7 +258,7 @@ internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modul
      * copies a directory, overwrites the target
      * difference with ComputerCraft: it returns boolean, true on successful.
      */
-    class Cp(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : TwoArgFunction() {
+    class Cp(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : TwoArgFunction() {
         override fun call(from: LuaValue, to: LuaValue) : LuaValue {
             return tryBool {
                 val pathFrom = VDPath(from.checkPath(), sysCharset)
@@ -293,7 +293,7 @@ internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modul
     /**
      * difference with ComputerCraft: it returns boolean, true on successful.
      */
-    class Rm(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class Rm(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             return tryBool {
                 val path = VDPath(path.checkPath(), sysCharset)
@@ -304,7 +304,7 @@ internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modul
         }
     }
 
-    class ConcatPath(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : TwoArgFunction() {
+    class ConcatPath(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : TwoArgFunction() {
         override fun call(base: LuaValue, local: LuaValue) : LuaValue {
             TODO()
         }
@@ -336,7 +336,7 @@ internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modul
      *      writeBytes = function(string as bytearray)
      * }
      */
-    class OpenFile(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : TwoArgFunction() {
+    class OpenFile(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : TwoArgFunction() {
         override fun call(path: LuaValue, mode: LuaValue) : LuaValue {
             val path = VDPath(path.checkPath(), sysCharset)
             val disk = computer.getTargetDisk(path)!!
@@ -421,7 +421,7 @@ internal class Filesystem(globals: Globals, computer: net.torvald.terrarum.modul
         }
     }
 
-    class GetParentDir(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class GetParentDir(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(path: LuaValue) : LuaValue {
             val path = VDPath(path.checkPath(), sysCharset).getParent()
             return LuaValue.valueOf(path.toString())
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/HostAccessProvider.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/HostAccessProvider.kt.txt
similarity index 86%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/HostAccessProvider.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/HostAccessProvider.kt.txt
index e2211d837..ea1363fbc 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/HostAccessProvider.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/HostAccessProvider.kt.txt
@@ -3,7 +3,7 @@ package net.torvald.terrarum.modulecomputers.virtualcomputer.luaapi
 import net.torvald.terrarum.gameactors.ai.toLua
 import org.luaj.vm2.lib.OneArgFunction
 import org.luaj.vm2.lib.ZeroArgFunction
-import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer
+import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld
 import net.torvald.terrarum.modulecomputers.virtualcomputer.luaapi.Term.Companion.checkIBM437
 import net.torvald.terrarum.modulecomputers.virtualcomputer.terminal.Teletype
 import org.luaj.vm2.*
@@ -15,7 +15,7 @@ import org.luaj.vm2.*
  *
  * Created by minjaesong on 2016-09-19.
  */
-internal class HostAccessProvider(globals: Globals, computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) {
+internal class HostAccessProvider(globals: Globals, computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) {
 
     init {
         globals["machine"] = LuaTable()
@@ -42,19 +42,19 @@ internal class HostAccessProvider(globals: Globals, computer: net.torvald.terrar
         }
     }
 
-    class IsHalted(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer): ZeroArgFunction() {
+    class IsHalted(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld): ZeroArgFunction() {
         override fun call(): LuaValue {
             return LuaValue.valueOf(computer.isHalted)
         }
     }
 
-    class NativeReadStdin(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : ZeroArgFunction() {
+    class NativeReadStdin(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : ZeroArgFunction() {
         override fun call(): LuaValue {
             return computer.stdin!!.read().toLua()
         }
     }
 
-    class HaltComputer(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : ZeroArgFunction() {
+    class HaltComputer(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : ZeroArgFunction() {
         override fun call() : LuaValue {
             computer.isHalted = true
             computer.luaJ_globals.load("""print(DC4.."system halted")""").call()
@@ -63,13 +63,13 @@ internal class HostAccessProvider(globals: Globals, computer: net.torvald.terrar
     }
 
     /** Time elapsed since the power is on. */
-    class NativeGetMilliTime(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : ZeroArgFunction() {
+    class NativeGetMilliTime(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : ZeroArgFunction() {
         override fun call(): LuaValue {
             return LuaValue.valueOf(computer.milliTime)
         }
     }
 
-    class NativeThreadSleep(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OneArgFunction() {
+    class NativeThreadSleep(val computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OneArgFunction() {
         override fun call(mills: LuaValue): LuaValue {
             computer.currentExecutionThread.join(mills.checklong())
             return LuaValue.NONE
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Input.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Input.kt.txt
similarity index 82%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Input.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Input.kt.txt
index ad4dfc73f..d6583126e 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Input.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Input.kt.txt
@@ -5,12 +5,12 @@ import org.luaj.vm2.Globals
 import org.luaj.vm2.LuaTable
 import org.luaj.vm2.LuaValue
 import org.luaj.vm2.lib.OneArgFunction
-import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer
+import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld
 
 /**
  * Created by minjaesong on 2016-09-25.
  */
-class Input(globals: Globals, computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) {
+class Input(globals: Globals, computer: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) {
 
 
 }
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/PcSpeakerDriver.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/PcSpeakerDriver.kt.txt
similarity index 97%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/PcSpeakerDriver.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/PcSpeakerDriver.kt.txt
index 80cf27339..b4ad407f5 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/PcSpeakerDriver.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/PcSpeakerDriver.kt.txt
@@ -5,7 +5,7 @@ import org.luaj.vm2.LuaTable
 import org.luaj.vm2.LuaValue
 import org.luaj.vm2.lib.TwoArgFunction
 import org.luaj.vm2.lib.ZeroArgFunction
-import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer
+import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld
 import org.luaj.vm2.LuaFunction
 import org.luaj.vm2.lib.OneArgFunction
 
@@ -16,7 +16,7 @@ import org.luaj.vm2.lib.OneArgFunction
  *
  * Created by minjaesong on 2016-09-27.
  */
-class PcSpeakerDriver(val globals: Globals, host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) {
+class PcSpeakerDriver(val globals: Globals, host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) {
 
     init {
         globals["speaker"] = LuaTable()
@@ -67,7 +67,7 @@ class PcSpeakerDriver(val globals: Globals, host: net.torvald.terrarum.modulecom
         }
     }
 
-    class EnqueueTone(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : TwoArgFunction() {
+    class EnqueueTone(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : TwoArgFunction() {
         /**
          * @param freq: number (hertz) or string (A-4, A4, B#2, ...)
          */
@@ -84,7 +84,7 @@ class PcSpeakerDriver(val globals: Globals, host: net.torvald.terrarum.modulecom
         }
     }
 
-    class ClearQueue(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : ZeroArgFunction() {
+    class ClearQueue(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : ZeroArgFunction() {
         override fun call(): LuaValue {
             host.clearBeepQueue()
             return LuaValue.NONE
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Security.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Security.kt.txt
similarity index 100%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Security.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Security.kt.txt
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Term.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Term.kt.txt
similarity index 100%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Term.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/Term.kt.txt
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/WorldInformationProvider.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/WorldInformationProvider.kt.txt
similarity index 100%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/WorldInformationProvider.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/luaapi/WorldInformationProvider.kt.txt
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/Peripheral.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/Peripheral.kt.txt
similarity index 100%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/Peripheral.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/Peripheral.kt.txt
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralCharLCD.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralCharLCD.kt.txt
similarity index 100%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralCharLCD.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralCharLCD.kt.txt
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralInternet.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralInternet.kt.txt
similarity index 93%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralInternet.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralInternet.kt.txt
index 1eab7a624..9095d98c8 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralInternet.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralInternet.kt.txt
@@ -1,7 +1,7 @@
 package net.torvald.terrarum.modulecomputers.virtualcomputer.peripheral
 
 import org.luaj.vm2.Globals
-import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer
+import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld
 import org.luaj.vm2.LuaTable
 import org.luaj.vm2.LuaValue
 import org.luaj.vm2.lib.OneArgFunction
@@ -14,7 +14,7 @@ import java.net.URL
  *
  * Created by minjaesong on 2016-09-24.
  */
-internal class PeripheralInternet(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer)
+internal class PeripheralInternet(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld)
 : net.torvald.terrarum.modulecomputers.virtualcomputer.peripheral.Peripheral("internet"){
 
     override val memSize = 1024
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralPSG.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralPSG.kt.txt
similarity index 89%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralPSG.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralPSG.kt.txt
index 74f93e890..84605c0f9 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralPSG.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralPSG.kt.txt
@@ -1,6 +1,6 @@
 package net.torvald.terrarum.modulecomputers.virtualcomputer.peripheral
 
-import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer
+import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld
 import org.luaj.vm2.Globals
 import org.luaj.vm2.LuaTable
 import org.luaj.vm2.LuaValue
@@ -11,7 +11,7 @@ import org.luaj.vm2.LuaValue
  *
  * Created by minjaesong on 2016-09-27.
  */
-internal class PeripheralPSG(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer)
+internal class PeripheralPSG(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld)
 : net.torvald.terrarum.modulecomputers.virtualcomputer.peripheral.Peripheral("psg") {
 
     override val memSize = 1024
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralVideoCard.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralVideoCard.kt.txt
similarity index 99%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralVideoCard.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralVideoCard.kt.txt
index 10f7be702..8f31afcf3 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralVideoCard.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/peripheral/PeripheralVideoCard.kt.txt
@@ -8,7 +8,7 @@ import org.luaj.vm2.lib.*
  *
  * Created by minjaesong on 2017-02-08.
  */
-/*class PeripheralVideoCard(val host: TerrarumComputer, val termW: Int = 80, val termH: Int = 25) :
+/*class PeripheralVideoCard(val host: TerrarumComputerOld, val termW: Int = 80, val termH: Int = 25) :
         Peripheral("ppu") {
     companion object {
         val blockW = 8 // MUST BE 8
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/standalone/StandaloneApp.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/standalone/StandaloneApp.kt
new file mode 100644
index 000000000..cbbdb9f7f
--- /dev/null
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/standalone/StandaloneApp.kt
@@ -0,0 +1,180 @@
+package net.torvald.terrarum.modulecomputers.virtualcomputer.standalone
+
+import com.badlogic.gdx.Game
+import com.badlogic.gdx.Gdx
+import com.badlogic.gdx.backends.lwjgl.LwjglApplication
+import com.badlogic.gdx.backends.lwjgl.LwjglApplicationConfiguration
+import com.badlogic.gdx.graphics.Color
+import com.badlogic.gdx.graphics.Texture
+import com.badlogic.gdx.graphics.g2d.SpriteBatch
+import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.MDA
+import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
+
+/**
+ * Created by minjaesong on 2019-07-09.
+ */
+class StandaloneApp : Game() {
+
+    lateinit var font: TextureRegionPack
+
+    lateinit var background: Texture
+    lateinit var execLed: Texture
+    lateinit var waitLed: Texture
+
+    lateinit var batch: SpriteBatch
+
+    lateinit var vmThread: Thread
+
+    val display = MDA(80, 25)
+
+    override fun create() {
+        font = TextureRegionPack(Gdx.files.internal("assets/mods/dwarventech/gui/lcd.tga"), 12, 16)
+
+        background = Texture(Gdx.files.internal("assets/mods/dwarventech/gui/8025_textonly.png"))
+        execLed = Texture(Gdx.files.internal("assets/mods/dwarventech/gui/led_green.tga"))
+        waitLed = Texture(Gdx.files.internal("assets/mods/dwarventech/gui/led_orange.tga"))
+
+        batch = SpriteBatch()
+
+        //Gdx.input.inputProcessor = TVMInputProcessor()
+
+
+        //vmThread = Thread(vm)
+        //vmThread.start()
+
+    }
+
+    private val height: Int; get() = Gdx.graphics.height
+
+    private val lcdOffX = 74f
+    private val lcdOffY = 56f
+
+    private val lcdCol = arrayOf(
+            Color(0x14141400),
+            Color(0x141414AA),
+            Color(0x14141455),
+            Color(0x141414FF)
+    )
+
+    private var textCursorDrawTimer = 0f // 0f..0.5f: not draw
+
+    override fun render() {
+        Gdx.graphics.setTitle("Terrarum Lua Computer Standalone — F: ${Gdx.graphics.framesPerSecond}")
+
+        batch.inUse {
+            batch.color = Color.WHITE
+            batch.draw(background, 0f, 0f)
+
+
+            // draw the screen
+            textCursorDrawTimer += Gdx.graphics.rawDeltaTime
+            if (textCursorDrawTimer > 1f) textCursorDrawTimer -= 1f
+            val cursorX = display.cursor % display.width
+            val cursorY = display.cursor / display.height
+
+            for (i in 0 until display.width * display.height) {
+                val drawX = ((i % display.width) * font.tileW).toFloat()
+                val drawY = ((i / display.width) * font.tileH).toFloat()
+                val (g, a) = display.rawGet(i)
+                val glyph = g.toUint()
+                val glyphBack = glyph + 256
+                val back = (a.toUint() ushr 0x3) % lcdCol.size
+                val fore = a.toUint() % lcdCol.size
+
+                if (display.blink && i == display.cursor && textCursorDrawTimer >= 0.5f) {
+                    batch.color = lcdCol[1]
+                    batch.draw(
+                            font.get(0, 8),
+                            lcdOffX + drawX,
+                            (this.height - font.tileH) - (lcdOffY + drawY)
+                    )
+                }
+                else {
+                    // print background
+                    batch.color = lcdCol[back]
+                    batch.draw(
+                            font.get(glyphBack % font.horizontalCount, glyphBack / font.horizontalCount),
+                            lcdOffX + drawX,
+                            (this.height - font.tileH) - (lcdOffY + drawY)
+                    )
+                    // print foreground
+                    batch.color = lcdCol[fore]
+                    batch.draw(
+                            font.get(glyph % font.horizontalCount, glyph / font.horizontalCount),
+                            lcdOffX + drawX,
+                            (this.height - font.tileH) - (lcdOffY + drawY)
+                    )
+                }
+
+            }
+            // end of draw the screen
+
+        }
+
+
+        //vm.resumeExec()
+    }
+
+    override fun dispose() {
+        background.dispose()
+        display.dispose()
+        //vm.destroy()
+    }
+
+    private inline fun SpriteBatch.inUse(action: () -> Unit) {
+        this.begin()
+        action.invoke()
+        this.end()
+    }
+
+
+    /*class TVMInputProcessor(val vm: TerranVM) : InputProcessor {
+        override fun touchUp(p0: Int, p1: Int, p2: Int, p3: Int): Boolean {
+            return false
+        }
+
+        override fun mouseMoved(p0: Int, p1: Int): Boolean {
+            return false
+        }
+
+        override fun keyTyped(p0: Char): Boolean {
+
+
+            return true
+        }
+
+        override fun scrolled(p0: Int): Boolean {
+            return false
+        }
+
+        override fun keyUp(p0: Int): Boolean {
+            return false
+        }
+
+        override fun touchDragged(p0: Int, p1: Int, p2: Int): Boolean {
+            return false
+        }
+
+        override fun keyDown(p0: Int): Boolean {
+            return false
+        }
+
+        override fun touchDown(p0: Int, p1: Int, p2: Int, p3: Int): Boolean {
+            return false
+        }
+    }*/
+
+
+    private fun Byte.toUint() = java.lang.Byte.toUnsignedInt(this)
+}
+
+fun main(args: Array<String>) {
+    val config = LwjglApplicationConfiguration()
+    config.width = 1106
+    config.height = 556
+    config.foregroundFPS = 100
+    config.vSyncEnabled = false
+    config.resizable = false
+
+    LwjglApplication(StandaloneApp(), config)
+}
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/GraphicsTerminal.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/GraphicsTerminal.kt.txt
similarity index 99%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/GraphicsTerminal.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/GraphicsTerminal.kt.txt
index 20253aca2..14898c362 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/GraphicsTerminal.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/GraphicsTerminal.kt.txt
@@ -6,7 +6,7 @@ package net.torvald.terrarum.modulecomputers.virtualcomputer.terminal
  *
  * Created by minjaesong on 2017-02-08.
  */
-/*class GraphicsTerminal(private val host: TerrarumComputer) : Terminal {
+/*class GraphicsTerminal(private val host: TerrarumComputerOld) : Terminal {
     lateinit var videoCard: PeripheralVideoCard
 
     override val width: Int; get() = videoCard.termW
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/SimpleTextTerminal.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/SimpleTextTerminal.kt.txt
similarity index 99%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/SimpleTextTerminal.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/SimpleTextTerminal.kt.txt
index 8bacf5da4..94696582c 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/SimpleTextTerminal.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/SimpleTextTerminal.kt.txt
@@ -7,7 +7,7 @@ package net.torvald.terrarum.modulecomputers.virtualcomputer.terminal
  * Created by minjaesong on 2016-09-07.
  */
 /*open class SimpleTextTerminal(
-        phosphorColour: Color, override val width: Int, override val height: Int, private val host: TerrarumComputer,
+        phosphorColour: Color, override val width: Int, override val height: Int, private val host: TerrarumComputerOld,
         colour: Boolean = false, hires: Boolean = false
 ) : Terminal {
 
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/Teletype.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/Teletype.kt.txt
similarity index 100%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/Teletype.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/Teletype.kt.txt
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TeletypeTerminal.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TeletypeTerminal.kt.txt
similarity index 100%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TeletypeTerminal.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TeletypeTerminal.kt.txt
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/Terminal.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/Terminal.kt.txt
similarity index 100%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/Terminal.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/Terminal.kt.txt
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TerminalInputStream.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TerminalInputStream.kt.txt
similarity index 86%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TerminalInputStream.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TerminalInputStream.kt.txt
index a26ddb87d..ba368caf3 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TerminalInputStream.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TerminalInputStream.kt.txt
@@ -1,12 +1,12 @@
 package net.torvald.terrarum.modulecomputers.virtualcomputer.terminal
 
-import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer
+import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld
 import java.io.InputStream
 
 /**
  * Created by minjaesong on 2016-09-10.
  */
-class TerminalInputStream(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : InputStream() {
+class TerminalInputStream(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : InputStream() {
 
     override fun read(): Int {
         //System.err.println(Thread.currentThread().name)
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TerminalPrintStream.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TerminalPrintStream.kt.txt
similarity index 69%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TerminalPrintStream.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TerminalPrintStream.kt.txt
index 0212f8f9a..3a3856211 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TerminalPrintStream.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/terminal/TerminalPrintStream.kt.txt
@@ -1,14 +1,14 @@
 package net.torvald.terrarum.modulecomputers.virtualcomputer.terminal
 
-import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer
+import net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld
 import java.io.OutputStream
 import java.io.PrintStream
 
 /**
  * Created by minjaesong on 2016-09-10.
  */
-class TerminalPrintStream(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : PrintStream(TerminalOutputStream(host))
+class TerminalPrintStream(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : PrintStream(TerminalOutputStream(host))
 
-class TerminalOutputStream(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer) : OutputStream() {
+class TerminalOutputStream(val host: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld) : OutputStream() {
     override fun write(b: Int) = host.term.printChar(b.and(0xFF).toChar())
 }
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/ComputerPartsCodex.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/ComputerPartsCodex.kt.txt
similarity index 100%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/ComputerPartsCodex.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/ComputerPartsCodex.kt.txt
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/FixtureBasicTerminal.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/FixtureBasicTerminal.kt.txt
similarity index 93%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/FixtureBasicTerminal.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/FixtureBasicTerminal.kt.txt
index 78a656d73..aca1d6ff7 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/FixtureBasicTerminal.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/FixtureBasicTerminal.kt.txt
@@ -9,7 +9,7 @@ import net.torvald.terrarum.modulebasegame.gameactors.FixtureBase
  */
 class FixtureBasicTerminal(phosphor: Color) : FixtureBase(BlockBox(BlockBox.ALLOW_MOVE_DOWN, 1, 1)) {
 
-    /*val computer = TerrarumComputer(8)
+    /*val computer = TerrarumComputerOld(8)
     val vt: Terminal = SimpleTextTerminal(phosphor, 80, 25, computer)
     val ui = UITextTerminal(vt)
 
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/FixtureComputerBase.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/FixtureComputerBase.kt.txt
similarity index 94%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/FixtureComputerBase.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/FixtureComputerBase.kt.txt
index fd2325c98..f4bf81bfa 100644
--- a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/FixtureComputerBase.kt
+++ b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/FixtureComputerBase.kt.txt
@@ -11,7 +11,7 @@ open class FixtureComputerBase : FixtureBase(BlockBox(BlockBox.NO_COLLISION, 1,
     /** Connected terminal */
     var terminal: FixtureBasicTerminal? = null
 
-    var computerInside: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer? = null
+    var computerInside: net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld? = null
 
     init {
         // UUID of the "brain"
@@ -26,7 +26,7 @@ open class FixtureComputerBase : FixtureBase(BlockBox(BlockBox.NO_COLLISION, 1,
 
     fun attachTerminal(uuid: String) {
         val fetchedTerminal = getTerminalByUUID(uuid)
-        computerInside = net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputer(8)
+        computerInside = net.torvald.terrarum.modulecomputers.virtualcomputer.computer.TerrarumComputerOld(8)
         computerInside!!.attachTerminal(fetchedTerminal!!)
         actorValue["computerid"] = computerInside!!.UUID
     }
diff --git a/src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/ui/UITextTerminal.kt b/src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/ui/UITextTerminal.kt.txt
similarity index 100%
rename from src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/ui/UITextTerminal.kt
rename to src/net/torvald/terrarum/modulecomputers/virtualcomputer/worldobject/ui/UITextTerminal.kt.txt