diff --git a/res/graphics/sky_colour.png b/res/graphics/sky_colour.png
index 9c5574f32..240210244 100644
Binary files a/res/graphics/sky_colour.png and b/res/graphics/sky_colour.png differ
diff --git a/res/graphics/sprites/test_player.png b/res/graphics/sprites/test_player.png
index 99a21e8e1..d9a1c32de 100644
Binary files a/res/graphics/sprites/test_player.png and b/res/graphics/sprites/test_player.png differ
diff --git a/res/graphics/terrain/terrain.png b/res/graphics/terrain/terrain.png
index d4a10ca52..e847fef6a 100644
Binary files a/res/graphics/terrain/terrain.png and b/res/graphics/terrain/terrain.png differ
diff --git a/src/com/Torvald/JsonWriter.kt b/src/com/Torvald/JsonWriter.kt
index 52563b523..c32f970a0 100644
--- a/src/com/Torvald/JsonWriter.kt
+++ b/src/com/Torvald/JsonWriter.kt
@@ -12,6 +12,12 @@ import java.io.IOException
  */
 object JsonWriter {
 
+    /**
+     * Serialise a class to the file as JSON, using Google GSON.
+     *
+     * @param c: a class
+     * @param path: path to write a file
+     */
     @Throws(IOException::class)
     fun writeToFile(c: Any, path: String) {
         val classElem = Gson().toJsonTree(c)
@@ -21,6 +27,12 @@ object JsonWriter {
         writer.close()
     }
 
+    /**
+     * Serialise JsonObject to the file as JSON, using Google GSON.
+     *
+     * @param jsonObject
+     * @param path: path to write a file
+     */
     @Throws(IOException::class)
     fun writeToFile(jsonObject: JsonObject, path: String) {
         val writer = FileWriter(path)
diff --git a/src/com/Torvald/Point/Point2f.java b/src/com/Torvald/Point/Point2f.java
deleted file mode 100644
index ad29004b0..000000000
--- a/src/com/Torvald/Point/Point2f.java
+++ /dev/null
@@ -1,28 +0,0 @@
-package com.Torvald.Point;
-
-/**
- * Created by minjaesong on 16-01-15.
- */
-public class Point2f {
-
-    private float x;
-    private float y;
-
-    public Point2f(float x, float y) {
-        this.x = x;
-        this.y = y;
-    }
-
-    public void set(float x, float y) {
-        this.x = x;
-        this.y = y;
-    }
-
-    public float getX() {
-        return x;
-    }
-
-    public float getY() {
-        return y;
-    }
-}
diff --git a/src/com/Torvald/Point/Point2f.kt b/src/com/Torvald/Point/Point2f.kt
new file mode 100644
index 000000000..da5fb376c
--- /dev/null
+++ b/src/com/Torvald/Point/Point2f.kt
@@ -0,0 +1,22 @@
+package com.Torvald.Point
+
+/**
+ * Created by minjaesong on 16-01-15.
+ */
+class Point2f(x: Float, y: Float) {
+
+    var x: Float = 0.toFloat()
+        private set
+    var y: Float = 0.toFloat()
+        private set
+
+    init {
+        this.x = x
+        this.y = y
+    }
+
+    operator fun set(x: Float, y: Float) {
+        this.x = x
+        this.y = y
+    }
+}
diff --git a/src/com/Torvald/Terrarum/Actors/Hitbox.java b/src/com/Torvald/Terrarum/Actors/Hitbox.java
deleted file mode 100644
index 6729accf4..000000000
--- a/src/com/Torvald/Terrarum/Actors/Hitbox.java
+++ /dev/null
@@ -1,130 +0,0 @@
-package com.Torvald.Terrarum.Actors;
-
-import com.Torvald.Point.Point2f;
-
-/**
- * Created by minjaesong on 16-01-15.
- */
-public class Hitbox {
-
-    private Point2f hitboxStart;
-    private Point2f hitboxEnd;
-    private float width;
-    private float height;
-
-    public Hitbox(float x1, float y1, float width, float height) {
-        hitboxStart = new Point2f(x1, y1);
-        hitboxEnd = new Point2f(x1 + width, y1 + height);
-        this.width = width;
-        this.height = height;
-    }
-
-    public Point2f getHitboxStart() {
-        return hitboxStart;
-    }
-
-    public Point2f getHitboxEnd() {
-        return hitboxEnd;
-    }
-
-    public float getWidth() {
-        return width;
-    }
-
-    public float getHeight() {
-        return height;
-    }
-
-    /**
-     * Returns bottom-centered point of hitbox.
-     * @return pointX
-     */
-    public float getPointedX() {
-        return hitboxStart.getX() + (width / 2);
-    }
-
-    /**
-     * Returns bottom-centered point of hitbox.
-     * @return pointY
-     */
-    public float getPointedY() {
-        return hitboxEnd.getY();
-    }
-
-    /**
-     * Set to the point top left
-     * @param x1
-     * @param y1
-     * @param width
-     * @param height
-     */
-    public void set(float x1, float y1, float width, float height) {
-        hitboxStart = new Point2f(x1, y1);
-        hitboxEnd = new Point2f(x1 + width, y1 + height);
-        this.width = width;
-        this.height = height;
-    }
-
-    public void setPosition(float x1, float y1) {
-        hitboxStart = new Point2f(x1, y1);
-        hitboxEnd = new Point2f(x1 + width, y1 + height);
-    }
-
-    public void setPositionX(float x) {
-        setPosition(x, getPosY());
-    }
-
-    public void setPositionY(float y) {
-        setPosition(getPosX(), y);
-    }
-
-    public void setPositionFromPoint(float x1, float y1) {
-        hitboxStart = new Point2f(x1 - (width / 2), y1 - height);
-        hitboxEnd = new Point2f(hitboxStart.getX() + width, hitboxStart.getY() + height);
-    }
-
-    public void setPositionXFromPoint(float x) {
-        setPositionFromPoint(x, getPointedY());
-    }
-
-    public void setPositionYFromPoint(float y) {
-        setPositionFromPoint(getPointedX(), y);
-    }
-
-    public void translatePosX(float d) {
-        setPositionX(getPosX() + d);
-    }
-
-    public void translatePosY(float d) {
-        setPositionY(getPosY() + d);
-    }
-
-    public void setDimension(float w, float h) {
-        width = w;
-        height = h;
-    }
-
-    /**
-     * Returns x value of start point
-     * @return top-left point posX
-     */
-    public float getPosX() {
-        return hitboxStart.getX();
-    }
-
-    /**
-     * Returns y value of start point
-     * @return top-left point posY
-     */
-    public float getPosY() {
-        return hitboxStart.getY();
-    }
-
-    public float getCenteredX() {
-        return (hitboxStart.getX() + hitboxEnd.getX()) * 0.5f;
-    }
-
-    public float getCenteredY() {
-        return (hitboxStart.getY() + hitboxEnd.getY()) * 0.5f;
-    }
-}
diff --git a/src/com/Torvald/Terrarum/Actors/Hitbox.kt b/src/com/Torvald/Terrarum/Actors/Hitbox.kt
new file mode 100644
index 000000000..8631ac807
--- /dev/null
+++ b/src/com/Torvald/Terrarum/Actors/Hitbox.kt
@@ -0,0 +1,115 @@
+package com.Torvald.Terrarum.Actors
+
+import com.Torvald.Point.Point2f
+
+/**
+ * Created by minjaesong on 16-01-15.
+ */
+class Hitbox(x1: Float, y1: Float, width: Float, height: Float) {
+
+    var hitboxStart: Point2f
+        private set
+    var hitboxEnd: Point2f
+        private set
+    var width: Float = 0.toFloat()
+        private set
+    var height: Float = 0.toFloat()
+        private set
+
+    init {
+        hitboxStart = Point2f(x1, y1)
+        hitboxEnd = Point2f(x1 + width, y1 + height)
+        this.width = width
+        this.height = height
+    }
+
+    /**
+     * Returns bottom-centered point of hitbox.
+     * @return pointX
+     */
+    val pointedX: Float
+        get() = hitboxStart.x + width / 2
+
+    /**
+     * Returns bottom-centered point of hitbox.
+     * @return pointY
+     */
+    val pointedY: Float
+        get() = hitboxEnd.y
+
+    /**
+     * Set to the point top left
+     * @param x1
+     * *
+     * @param y1
+     * *
+     * @param width
+     * *
+     * @param height
+     */
+    operator fun set(x1: Float, y1: Float, width: Float, height: Float) {
+        hitboxStart = Point2f(x1, y1)
+        hitboxEnd = Point2f(x1 + width, y1 + height)
+        this.width = width
+        this.height = height
+    }
+
+    fun setPosition(x1: Float, y1: Float) {
+        hitboxStart = Point2f(x1, y1)
+        hitboxEnd = Point2f(x1 + width, y1 + height)
+    }
+
+    fun setPositionX(x: Float) {
+        setPosition(x, posY)
+    }
+
+    fun setPositionY(y: Float) {
+        setPosition(posX, y)
+    }
+
+    fun setPositionFromPoint(x1: Float, y1: Float) {
+        hitboxStart = Point2f(x1 - width / 2, y1 - height)
+        hitboxEnd = Point2f(hitboxStart.x + width, hitboxStart.y + height)
+    }
+
+    fun setPositionXFromPoint(x: Float) {
+        setPositionFromPoint(x, pointedY)
+    }
+
+    fun setPositionYFromPoint(y: Float) {
+        setPositionFromPoint(pointedX, y)
+    }
+
+    fun translatePosX(d: Float) {
+        setPositionX(posX + d)
+    }
+
+    fun translatePosY(d: Float) {
+        setPositionY(posY + d)
+    }
+
+    fun setDimension(w: Float, h: Float) {
+        width = w
+        height = h
+    }
+
+    /**
+     * Returns x value of start point
+     * @return top-left point posX
+     */
+    val posX: Float
+        get() = hitboxStart.x
+
+    /**
+     * Returns y value of start point
+     * @return top-left point posY
+     */
+    val posY: Float
+        get() = hitboxStart.y
+
+    val centeredX: Float
+        get() = (hitboxStart.x + hitboxEnd.x) * 0.5f
+
+    val centeredY: Float
+        get() = (hitboxStart.y + hitboxEnd.y) * 0.5f
+}
diff --git a/src/com/Torvald/Terrarum/Actors/PFSigrid.kt b/src/com/Torvald/Terrarum/Actors/PFSigrid.kt
index 5c363f051..282d86c57 100644
--- a/src/com/Torvald/Terrarum/Actors/PFSigrid.kt
+++ b/src/com/Torvald/Terrarum/Actors/PFSigrid.kt
@@ -26,7 +26,6 @@ object PFSigrid {
         p.sprite!!.setDelay(200)
         p.sprite!!.setRowsAndFrames(1, 1)
         p.sprite!!.setAsVisible()
-        p.sprite!!.composeSprite()
 
         p.spriteGlow = SpriteAnimation()
         p.spriteGlow!!.setDimension(28, 51)
@@ -34,7 +33,6 @@ object PFSigrid {
         p.spriteGlow!!.setDelay(200)
         p.spriteGlow!!.setRowsAndFrames(1, 1)
         p.spriteGlow!!.setAsVisible()
-        p.spriteGlow!!.composeSprite()
 
         p.actorValue = ActorValue()
         p.actorValue.set("scale", 1.0f)
diff --git a/src/com/Torvald/Terrarum/Actors/PhysTestBall.kt b/src/com/Torvald/Terrarum/Actors/PhysTestBall.kt
index d4c009258..17c808645 100644
--- a/src/com/Torvald/Terrarum/Actors/PhysTestBall.kt
+++ b/src/com/Torvald/Terrarum/Actors/PhysTestBall.kt
@@ -17,9 +17,9 @@ class PhysTestBall : ActorWithBody {
     override fun drawBody(gc: GameContainer, g: Graphics) {
         g.color = Color.orange
         g.fillOval(
-                hitbox!!.getPosX(),
-                hitbox!!.getPosY(),
-                hitbox!!.getWidth(),
-                hitbox!!.getHeight())
+                hitbox!!.posX,
+                hitbox!!.posY,
+                hitbox!!.width,
+                hitbox!!.height)
     }
 }
\ No newline at end of file
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/CatStdout.java b/src/com/Torvald/Terrarum/ConsoleCommand/CatStdout.java
deleted file mode 100644
index 418348a68..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/CatStdout.java
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-import java.io.IOException;
-import java.nio.file.FileSystems;
-import java.nio.file.Files;
-
-/**
- * Created by minjaesong on 16-02-10.
- */
-public class CatStdout implements ConsoleCommand {
-    @Override
-    public void execute(String[] args) {
-
-        Echo echo = new Echo();
-
-        if (args.length == 1) {
-            printUsage();
-            return;
-        }
-
-        try {
-            Files.lines(FileSystems.getDefault().getPath(args[1])).forEach(echo::execute);
-        }
-        catch (IOException e) {
-            echo.execute("CatStdout: could not read file -- IOException");
-        }
-
-    }
-
-    @Override
-    public void printUsage() {
-        new Echo().execute("usage: cat 'path/to/text/file");
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/CatStdout.kt b/src/com/Torvald/Terrarum/ConsoleCommand/CatStdout.kt
new file mode 100644
index 000000000..6ee8e12c7
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/CatStdout.kt
@@ -0,0 +1,32 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import java.io.IOException
+import java.nio.file.FileSystems
+import java.nio.file.Files
+
+/**
+ * Created by minjaesong on 16-02-10.
+ */
+class CatStdout : ConsoleCommand {
+    override fun execute(args: Array<String>) {
+
+        val echo = Echo()
+
+        if (args.size == 1) {
+            printUsage()
+            return
+        }
+
+        try {
+            Files.lines(FileSystems.getDefault().getPath(args[1])).forEach({ echo.execute(it) })
+        }
+        catch (e: IOException) {
+            echo.execute("CatStdout: could not read file -- IOException")
+        }
+
+    }
+
+    override fun printUsage() {
+        Echo().execute("usage: cat 'path/to/text/file")
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/Echo.java b/src/com/Torvald/Terrarum/ConsoleCommand/Echo.java
deleted file mode 100644
index d90cabb7f..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/Echo.java
+++ /dev/null
@@ -1,32 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-import com.Torvald.Terrarum.Terrarum;
-import com.Torvald.Terrarum.UserInterface.ConsoleWindow;
-
-import java.util.Arrays;
-
-/**
- * Created by minjaesong on 16-01-16.
- */
-class Echo implements ConsoleCommand {
-    @Override
-    public void execute(String[] args) {
-        String[] argsWoHeader = new String[args.length - 1];
-        for (int i = 0; i < argsWoHeader.length; i++)
-            argsWoHeader[i] = args[i + 1];
-
-        Arrays.asList(argsWoHeader).forEach(
-                ((ConsoleWindow) Terrarum.game.consoleHandler.getUI())::sendMessage
-        );
-    }
-
-    public void execute(String single_line) {
-        ((ConsoleWindow) Terrarum.game.consoleHandler.getUI())
-                .sendMessage(single_line);
-    }
-
-    @Override
-    public void printUsage() {
-
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/Echo.kt b/src/com/Torvald/Terrarum/ConsoleCommand/Echo.kt
new file mode 100644
index 000000000..5b5d39b8f
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/Echo.kt
@@ -0,0 +1,26 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import com.Torvald.Terrarum.Terrarum
+import com.Torvald.Terrarum.UserInterface.ConsoleWindow
+
+import java.util.Arrays
+
+/**
+ * Created by minjaesong on 16-01-16.
+ */
+internal class Echo : ConsoleCommand {
+    override fun execute(args: Array<String>) {
+        val argsWoHeader = Array<String>(args.size - 1, {it -> args[it + 1]})
+
+        argsWoHeader.forEach(
+                { (Terrarum.game.consoleHandler.UI as ConsoleWindow).sendMessage(it) })
+    }
+
+    fun execute(single_line: String) {
+        (Terrarum.game.consoleHandler.UI as ConsoleWindow).sendMessage(single_line)
+    }
+
+    override fun printUsage() {
+
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/ExportAV.java b/src/com/Torvald/Terrarum/ConsoleCommand/ExportAV.java
deleted file mode 100644
index d625c5cb5..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/ExportAV.java
+++ /dev/null
@@ -1,39 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-import com.Torvald.JsonWriter;
-import com.Torvald.Terrarum.Terrarum;
-
-import java.io.IOException;
-
-/**
- * Created by minjaesong on 16-02-10.
- */
-public class ExportAV implements ConsoleCommand {
-    @Override
-    public void execute(String[] args) {
-        if (args.length == 2) {
-            try {
-                JsonWriter.INSTANCE.writeToFile(Terrarum.game.player.getActorValue()
-                        , Terrarum.defaultDir + "/Exports/" + args[1] + ".json"
-                );
-
-                new Echo().execute("ExportAV: exported to " + args[1] + ".json");
-            }
-            catch (IOException e) {
-                new Echo().execute("ExportAV: IOException raised.");
-                e.printStackTrace();
-            }
-        }
-        else {
-            printUsage();
-        }
-    }
-
-    @Override
-    public void printUsage() {
-        Echo echo = new Echo();
-        echo.execute("Export ActorValue as JSON format.");
-        echo.execute("Usage: exportav (id) filename-without-extension");
-        echo.execute("blank ID for player");
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/ExportAV.kt b/src/com/Torvald/Terrarum/ConsoleCommand/ExportAV.kt
new file mode 100644
index 000000000..c37fe6828
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/ExportAV.kt
@@ -0,0 +1,38 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import com.Torvald.JsonWriter
+import com.Torvald.Terrarum.Terrarum
+
+import java.io.IOException
+
+/**
+ * Created by minjaesong on 16-02-10.
+ */
+class ExportAV : ConsoleCommand {
+    override fun execute(args: Array<String>) {
+        if (args.size == 2) {
+            try {
+                JsonWriter.writeToFile(
+                        Terrarum.game.player.getActorValue(),
+                        Terrarum.defaultDir + "/Exports/" + args[1] + ".json")
+
+                Echo().execute("ExportAV: exported to " + args[1] + ".json")
+            }
+            catch (e: IOException) {
+                Echo().execute("ExportAV: IOException raised.")
+                e.printStackTrace()
+            }
+
+        }
+        else {
+            printUsage()
+        }
+    }
+
+    override fun printUsage() {
+        val echo = Echo()
+        echo.execute("Export ActorValue as JSON format.")
+        echo.execute("Usage: exportav (id) filename-without-extension")
+        echo.execute("blank ID for player")
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/ExportMap.java b/src/com/Torvald/Terrarum/ConsoleCommand/ExportMap.kt
similarity index 51%
rename from src/com/Torvald/Terrarum/ConsoleCommand/ExportMap.java
rename to src/com/Torvald/Terrarum/ConsoleCommand/ExportMap.kt
index 5df05bf63..79d84cbb2 100644
--- a/src/com/Torvald/Terrarum/ConsoleCommand/ExportMap.java
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/ExportMap.kt
@@ -1,3 +1,151 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import com.Torvald.ColourUtil.Col4096
+import com.Torvald.RasterWriter
+import com.Torvald.Terrarum.Terrarum
+
+import javax.imageio.ImageIO
+import java.awt.*
+import java.awt.color.ColorSpace
+import java.awt.image.*
+import java.io.*
+import java.util.Hashtable
+
+/**
+ * Created by minjaesong on 16-01-17.
+ */
+class ExportMap : ConsoleCommand {
+
+    //private var mapData: ByteArray? = null
+    // private var mapDataPointer = 0
+
+    private val colorTable = Hashtable<Byte, Col4096>()
+
+    override fun execute(args: Array<String>) {
+        if (args.size == 2) {
+            buildColorTable()
+
+            var mapData = ByteArray(Terrarum.game.map.width * Terrarum.game.map.height * 3)
+            var mapDataPointer = 0
+
+            for (tile in Terrarum.game.map.layerTerrain) {
+                val colArray = (colorTable as java.util.Map<Byte, Col4096>)
+                        .getOrDefault(tile, Col4096(0xFFF)).toByteArray()
+
+                for (i in 0..2) {
+                    mapData[mapDataPointer + i] = colArray[i]
+                }
+
+                mapDataPointer += 3
+            }
+
+            val dir = Terrarum.defaultDir + "/Exports/"
+            val dirAsFile = File(dir)
+            if (!dirAsFile.exists()) {
+                dirAsFile.mkdir()
+            }
+
+            try {
+                RasterWriter.writePNG_RGB(
+                        Terrarum.game.map.width, Terrarum.game.map.height, mapData, dir + args[1] + ".png")
+                Echo().execute("ExportMap: exported to " + args[1] + ".png")
+
+            }
+            catch (e: IOException) {
+                Echo().execute("ExportMap: IOException raised.")
+                e.printStackTrace()
+            }
+
+            // mapData = null
+            // mapDataPointer = 0
+
+            // Free up some memory
+            System.gc()
+        }
+        else {
+            printUsage()
+        }
+    }
+
+    override fun printUsage() {
+        val echo = Echo()
+        echo.execute("Usage: export <name>")
+        echo.execute("Exports current map into visible image.")
+        echo.execute("The image can be found at %adddata%/Terrarum/Exports")
+    }
+
+    private fun buildColorTable() {
+        colorTable.put(AIR, Col4096(0xCEF))
+        colorTable.put(STONE, Col4096(0x887))
+        colorTable.put(DIRT, Col4096(0x763))
+        colorTable.put(GRASS, Col4096(0x251))
+
+        colorTable.put(COPPER, Col4096(0x6A8))
+        colorTable.put(IRON, Col4096(0xC75))
+        colorTable.put(GOLD, Col4096(0xCB6))
+        colorTable.put(ILMENITE, Col4096(0x8AB))
+        colorTable.put(AURICHALCUM, Col4096(0xD92))
+        colorTable.put(SILVER, Col4096(0xDDD))
+
+        colorTable.put(DIAMOND, Col4096(0x9CE))
+        colorTable.put(RUBY, Col4096(0xB10))
+        colorTable.put(EMERALD, Col4096(0x0B1))
+        colorTable.put(SAPPHIRE, Col4096(0x01B))
+        colorTable.put(TOPAZ, Col4096(0xC70))
+        colorTable.put(AMETHYST, Col4096(0x70C))
+
+        colorTable.put(WATER, Col4096(0x038))
+        colorTable.put(LAVA, Col4096(0xF50))
+
+        colorTable.put(SAND, Col4096(0xDCA))
+        colorTable.put(GRAVEL, Col4096(0x664))
+
+        colorTable.put(ICE_NATURAL, Col4096(0x9AB))
+        colorTable.put(ICE_MAGICAL, Col4096(0x7AC))
+        colorTable.put(ICE_FRAGILE, Col4096(0x6AF))
+        colorTable.put(SNOW, Col4096(0xCDE))
+
+
+    }
+
+    companion object {
+
+        private val AIR: Byte = 0
+
+        private val STONE: Byte = 1
+        private val DIRT: Byte = 2
+        private val GRASS: Byte = 3
+
+        private val SAND: Byte = 13
+        private val GRAVEL: Byte = 14
+
+        private val COPPER: Byte = 15
+        private val IRON: Byte = 16
+        private val GOLD: Byte = 17
+        private val SILVER: Byte = 18
+        private val ILMENITE: Byte = 19
+        private val AURICHALCUM: Byte = 20
+
+        private val DIAMOND: Byte = 25
+        private val RUBY: Byte = 21
+        private val EMERALD: Byte = 22
+        private val SAPPHIRE: Byte = 23
+        private val TOPAZ: Byte = 24
+        private val AMETHYST: Byte = 26
+
+        private val SNOW: Byte = 27
+        private val ICE_FRAGILE: Byte = 28
+        private val ICE_NATURAL: Byte = 29
+        private val ICE_MAGICAL: Byte = 30
+
+        private val WATER = 239.toByte()
+        private val LAVA = 255.toByte()
+    }
+
+}
+
+
+/*
 package com.Torvald.Terrarum.ConsoleCommand;
 
 import com.Torvald.ColourUtil.Col4096;
@@ -144,3 +292,5 @@ public class ExportMap implements ConsoleCommand {
     }
 
 }
+
+ */
\ No newline at end of file
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/ForceGC.java b/src/com/Torvald/Terrarum/ConsoleCommand/ForceGC.java
deleted file mode 100644
index 4b0121491..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/ForceGC.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-/**
- * Created by minjaesong on 16-01-18.
- */
-public class ForceGC implements ConsoleCommand {
-    @Override
-    public void execute(String[] args) {
-        System.gc();
-        new Echo().execute("Invoked System.gc");
-    }
-
-    @Override
-    public void printUsage() {
-        new Echo().execute("Invoke garbage collection of JVM.");
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/ForceGC.kt b/src/com/Torvald/Terrarum/ConsoleCommand/ForceGC.kt
new file mode 100644
index 000000000..b3d41afc6
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/ForceGC.kt
@@ -0,0 +1,15 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+/**
+ * Created by minjaesong on 16-01-18.
+ */
+class ForceGC : ConsoleCommand {
+    override fun execute(args: Array<String>) {
+        System.gc()
+        Echo().execute("Invoked System.gc")
+    }
+
+    override fun printUsage() {
+        Echo().execute("Invoke garbage collection of JVM.")
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/GetAV.java b/src/com/Torvald/Terrarum/ConsoleCommand/GetAV.java
deleted file mode 100644
index 6902b8feb..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/GetAV.java
+++ /dev/null
@@ -1,65 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-import com.Torvald.Terrarum.Actors.ActorValue;
-import com.Torvald.Terrarum.Game;
-import com.Torvald.Terrarum.Terrarum;
-
-import java.util.Iterator;
-import java.util.Set;
-
-/**
- * Created by minjaesong on 16-01-19.
- */
-public class GetAV implements ConsoleCommand {
-    @Override
-    public void execute(String[] args) {
-        Echo echo = new Echo();
-
-        try {
-            if (args.length == 1) {
-                // print all actorvalue of player
-                ActorValue av = Terrarum.game.player.getActorValue();
-                Set keyset = av.getKeySet();
-
-                keyset.forEach(
-                        elem -> echo.execute(elem + " = " + av.get((String) elem))
-                );
-
-            }
-            else if (args.length != 3 && args.length != 2) {
-                printUsage();
-            }
-            else if (args.length == 2) {
-                echo.execute("player." + args[1] + " = "
-                        + Terrarum.game.player.getActorValue().get(args[1])
-                        + " ("
-                        + Terrarum.game.player.getActorValue().get(args[1]).getClass()
-                                       .getSimpleName()
-                        + ")"
-                );
-            }
-            else if (args.length == 3) {
-
-            }
-        }
-        catch (NullPointerException e) {
-            if (args.length == 2) {
-                echo.execute(args[1] + ": actor value does not exist.");
-            }
-            else if (args.length == 3) {
-                echo.execute(args[2] + ": actor value does not exist.");
-            }
-            else {
-                throw new NullPointerException();
-            }
-        }
-    }
-
-    @Override
-    public void printUsage() {
-        Echo echo = new Echo();
-        echo.execute("Get desired actor value of specific target.");
-        echo.execute("Usage: getav (id) <av>");
-        echo.execute("blank ID for player");
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/GetAV.kt b/src/com/Torvald/Terrarum/ConsoleCommand/GetAV.kt
new file mode 100644
index 000000000..51d96e7f1
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/GetAV.kt
@@ -0,0 +1,57 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import com.Torvald.Terrarum.Actors.ActorValue
+import com.Torvald.Terrarum.Game
+import com.Torvald.Terrarum.Terrarum
+
+/**
+ * Created by minjaesong on 16-01-19.
+ */
+class GetAV : ConsoleCommand {
+    override fun execute(args: Array<String>) {
+        val echo = Echo()
+
+        try {
+            if (args.size == 1) {
+                // print all actorvalue of player
+                val av = Terrarum.game.player.getActorValue()
+                val keyset = av.keySet
+
+                keyset.forEach { elem -> echo.execute("$elem = ${av[elem as String]}") }
+
+            }
+            else if (args.size != 3 && args.size != 2) {
+                printUsage()
+            }
+            else if (args.size == 2) {
+                echo.execute("player." + args[1] + " = "
+                             + Terrarum.game.player.getActorValue()[args[1]]
+                             + " ("
+                             + Terrarum.game.player.getActorValue()[args[1]]!!.javaClass.simpleName
+                             + ")")
+            }
+            else if (args.size == 3) {
+
+            }
+        }
+        catch (e: NullPointerException) {
+            if (args.size == 2) {
+                echo.execute(args[1] + ": actor value does not exist.")
+            }
+            else if (args.size == 3) {
+                echo.execute(args[2] + ": actor value does not exist.")
+            }
+            else {
+                throw NullPointerException()
+            }
+        }
+
+    }
+
+    override fun printUsage() {
+        val echo = Echo()
+        echo.execute("Get desired actor value of specific target.")
+        echo.execute("Usage: getav (id) <av>")
+        echo.execute("blank ID for player")
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/GetFactioning.java b/src/com/Torvald/Terrarum/ConsoleCommand/GetFactioning.java
deleted file mode 100644
index e58532f85..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/GetFactioning.java
+++ /dev/null
@@ -1,60 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-import com.Torvald.Terrarum.Actors.Faction.Faction;
-import com.Torvald.Terrarum.LangPack.Lang;
-import com.Torvald.Terrarum.Terrarum;
-
-import java.util.HashSet;
-
-/**
- * Created by minjaesong on 16-02-17.
- */
-public class GetFactioning implements ConsoleCommand {
-
-    private final String PRINT_INDENTATION = "    --> ";
-
-    @Override
-    public void execute(String[] args) {
-        Echo echo = new Echo();
-
-        if (args.length == 1) { // get all factioning data of player
-            HashSet<Faction> factionSet = Terrarum.game.player.getFaction();
-
-            if (factionSet == null) {
-                echo.execute("The actor has null faction set.");
-                return;
-            }
-
-            int count = factionSet.size();
-            echo.execute(String.valueOf(count) + Lang.pluralise(" faction", count) + " assigned.");
-
-            for (Faction faction : factionSet) {
-                echo.execute("Faction \"" + faction.getFactionName() + "\"");
-                echo.execute("    Amicable");
-                faction.getFactionAmicable().forEach(
-                        s -> echo.execute(PRINT_INDENTATION + s)
-                );
-
-                echo.execute("    Explicit neutral");
-                faction.getFactionNeutral().forEach(
-                        s -> echo.execute(PRINT_INDENTATION + s)
-                );
-
-                echo.execute("    Hostile");
-                faction.getFactionHostile().forEach(
-                        s -> echo.execute(PRINT_INDENTATION + s)
-                );
-
-                echo.execute("    Fearful");
-                faction.getFactionFearful().forEach(
-                        s -> echo.execute(PRINT_INDENTATION + s)
-                );
-            }
-        }
-    }
-
-    @Override
-    public void printUsage() {
-
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/GetFactioning.kt b/src/com/Torvald/Terrarum/ConsoleCommand/GetFactioning.kt
new file mode 100644
index 000000000..7a2a7fd18
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/GetFactioning.kt
@@ -0,0 +1,51 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import com.Torvald.Terrarum.Actors.Faction.Faction
+import com.Torvald.Terrarum.LangPack.Lang
+import com.Torvald.Terrarum.Terrarum
+
+import java.util.HashSet
+
+/**
+ * Created by minjaesong on 16-02-17.
+ */
+class GetFactioning : ConsoleCommand {
+
+    private val PRINT_INDENTATION = "    --> "
+
+    override fun execute(args: Array<String>) {
+        val echo = Echo()
+
+        if (args.size == 1) {
+            // get all factioning data of player
+            val factionSet = Terrarum.game.player.faction
+
+            if (factionSet == null) {
+                echo.execute("The actor has null faction set.")
+                return
+            }
+
+            val count = factionSet.size
+            echo.execute(count.toString() + Lang.pluralise(" faction", count) + " assigned.")
+
+            for (faction in factionSet) {
+                echo.execute("Faction \"" + faction.factionName + "\"")
+                echo.execute("    Amicable")
+                faction.factionAmicable.forEach { s -> echo.execute(PRINT_INDENTATION + s) }
+
+                echo.execute("    Explicit neutral")
+                faction.factionNeutral.forEach { s -> echo.execute(PRINT_INDENTATION + s) }
+
+                echo.execute("    Hostile")
+                faction.factionHostile.forEach { s -> echo.execute(PRINT_INDENTATION + s) }
+
+                echo.execute("    Fearful")
+                faction.factionFearful.forEach { s -> echo.execute(PRINT_INDENTATION + s) }
+            }
+        }
+    }
+
+    override fun printUsage() {
+
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/GetLocale.java b/src/com/Torvald/Terrarum/ConsoleCommand/GetLocale.java
deleted file mode 100644
index bd1696c9d..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/GetLocale.java
+++ /dev/null
@@ -1,27 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-import com.Torvald.Terrarum.LangPack.Lang;
-import com.Torvald.Terrarum.Terrarum;
-
-/**
- * Created by minjaesong on 16-01-22.
- */
-public class GetLocale implements ConsoleCommand {
-    @Override
-    public void execute(String[] args) {
-        new Echo().execute(
-                "Locale: "
-                + Lang.get("LANGUAGE_THIS")
-                + " ("
-                + Lang.get("LANGUAGE_EN")
-                + ")"
-        );
-    }
-
-    @Override
-    public void printUsage() {
-        Echo echo = new Echo();
-        echo.execute("Usage: getlocale");
-        echo.execute("Get name of locale currently using.");
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/GetLocale.kt b/src/com/Torvald/Terrarum/ConsoleCommand/GetLocale.kt
new file mode 100644
index 000000000..eb3f8b908
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/GetLocale.kt
@@ -0,0 +1,24 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import com.Torvald.Terrarum.LangPack.Lang
+import com.Torvald.Terrarum.Terrarum
+
+/**
+ * Created by minjaesong on 16-01-22.
+ */
+class GetLocale : ConsoleCommand {
+    override fun execute(args: Array<String>) {
+        Echo().execute(
+                "Locale: "
+                + Lang.get("LANGUAGE_THIS")
+                + " ("
+                + Lang.get("LANGUAGE_EN")
+                + ")")
+    }
+
+    override fun printUsage() {
+        val echo = Echo()
+        echo.execute("Usage: getlocale")
+        echo.execute("Get name of locale currently using.")
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/GsonTest.java b/src/com/Torvald/Terrarum/ConsoleCommand/GsonTest.java
deleted file mode 100644
index 2d23740d9..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/GsonTest.java
+++ /dev/null
@@ -1,48 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-import com.Torvald.Terrarum.Terrarum;
-import com.google.gson.Gson;
-import com.google.gson.JsonElement;
-
-import java.io.BufferedWriter;
-import java.io.FileWriter;
-import java.io.IOException;
-
-/**
- * Created by minjaesong on 16-02-10.
- */
-public class GsonTest implements ConsoleCommand {
-    @Override
-    public void execute(String[] args) {
-        if (args.length == 2) {
-            JsonElement avelem = new Gson().toJsonTree(Terrarum.game.player);
-
-            String jsonString = avelem.toString();
-
-            BufferedWriter bufferedWriter;
-            FileWriter writer;
-            try {
-                writer = new FileWriter(Terrarum.defaultDir + "/Exports/" + args[1] + ".json");
-                bufferedWriter = new BufferedWriter(writer);
-
-                bufferedWriter.write(jsonString);
-                bufferedWriter.close();
-
-                new Echo().execute("GsonTest: exported to " + args[1] + ".json");
-            }
-            catch (IOException e) {
-                new Echo().execute("GsonTest: IOException raised.");
-                e.printStackTrace();
-            }
-        }
-        else {
-            printUsage();
-        }
-    }
-
-    @Override
-    public void printUsage() {
-        Echo echo = new Echo();
-        echo.execute("Usage: gsontest filename-without-extension");
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/GsonTest.kt b/src/com/Torvald/Terrarum/ConsoleCommand/GsonTest.kt
new file mode 100644
index 000000000..13ed6898f
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/GsonTest.kt
@@ -0,0 +1,47 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import com.Torvald.Terrarum.Terrarum
+import com.google.gson.Gson
+import com.google.gson.JsonElement
+
+import java.io.BufferedWriter
+import java.io.FileWriter
+import java.io.IOException
+
+/**
+ * Created by minjaesong on 16-02-10.
+ */
+class GsonTest : ConsoleCommand {
+    override fun execute(args: Array<String>) {
+        if (args.size == 2) {
+            val avelem = Gson().toJsonTree(Terrarum.game.player)
+
+            val jsonString = avelem.toString()
+
+            val bufferedWriter: BufferedWriter
+            val writer: FileWriter
+            try {
+                writer = FileWriter(Terrarum.defaultDir + "/Exports/" + args[1] + ".json")
+                bufferedWriter = BufferedWriter(writer)
+
+                bufferedWriter.write(jsonString)
+                bufferedWriter.close()
+
+                Echo().execute("GsonTest: exported to " + args[1] + ".json")
+            }
+            catch (e: IOException) {
+                Echo().execute("GsonTest: IOException raised.")
+                e.printStackTrace()
+            }
+
+        }
+        else {
+            printUsage()
+        }
+    }
+
+    override fun printUsage() {
+        val echo = Echo()
+        echo.execute("Usage: gsontest filename-without-extension")
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/Help.kt b/src/com/Torvald/Terrarum/ConsoleCommand/Help.kt
index 9f5f2d015..e042e38bc 100644
--- a/src/com/Torvald/Terrarum/ConsoleCommand/Help.kt
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/Help.kt
@@ -15,6 +15,6 @@ class Help : ConsoleCommand {
     }
 
     override fun printUsage() {
-        Echo().execute("Prints some utility functions assigned to runction row of the keyboard.")
+        Echo().execute("Prints some utility functions assigned to function row of the keyboard.")
     }
 }
\ No newline at end of file
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/QuitApp.java b/src/com/Torvald/Terrarum/ConsoleCommand/QuitApp.java
deleted file mode 100644
index 11f25ef60..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/QuitApp.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-/**
- * Created by minjaesong on 16-01-15.
- */
-public class QuitApp implements ConsoleCommand {
-
-    @Override
-    public void execute(String[] args) {
-        System.exit(1);
-    }
-
-    @Override
-    public void printUsage() {
-
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/QuitApp.kt b/src/com/Torvald/Terrarum/ConsoleCommand/QuitApp.kt
new file mode 100644
index 000000000..ae1fe3013
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/QuitApp.kt
@@ -0,0 +1,15 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+/**
+ * Created by minjaesong on 16-01-15.
+ */
+class QuitApp : ConsoleCommand {
+
+    override fun execute(args: Array<String>) {
+        System.exit(1)
+    }
+
+    override fun printUsage() {
+
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/SetAV.java b/src/com/Torvald/Terrarum/ConsoleCommand/SetAV.java
deleted file mode 100644
index a73f5f2e4..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/SetAV.java
+++ /dev/null
@@ -1,59 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-import com.Torvald.Terrarum.Game;
-import com.Torvald.Terrarum.Terrarum;
-
-/**
- * Created by minjaesong on 16-01-15.
- */
-class SetAV implements ConsoleCommand {
-
-    @Override
-    public void printUsage() {
-        Echo echo = new Echo();
-        echo.execute("Set actor value of specific target to desired value.");
-        echo.execute("Usage: setav (id) <av> <val>");
-        echo.execute("blank ID for player");
-    }
-
-    @Override
-    public void execute(String[] args) {
-        Echo echo = new Echo();
-
-        // setav <id or "player"> <av> <val>
-        if (args.length != 4 && args.length != 3) {
-            printUsage();
-        }
-        else if (args.length == 3) {
-            Object val;
-
-            try {
-                val = new Integer(args[2]); // try for integer
-            }
-            catch (NumberFormatException e) {
-
-                try {
-                    val = new Float(args[2]); // try for float
-                }
-                catch (NumberFormatException ee) {
-                    if (args[2].equalsIgnoreCase("__true")) {
-                        val = new Boolean(true);
-                    }
-                    else if (args[2].equalsIgnoreCase("__false")) {
-                        val = new Boolean(false);
-                    }
-                    else {
-                        val = new String(args[2]); // string if not number
-                    }
-                }
-            }
-
-            Terrarum.game.player.getActorValue().set(args[1], val);
-            echo.execute("Set " + args[1] + " to " + val);
-        }
-        else if (args.length == 4) {
-
-        }
-
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/SetAV.kt b/src/com/Torvald/Terrarum/ConsoleCommand/SetAV.kt
new file mode 100644
index 000000000..c542405ca
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/SetAV.kt
@@ -0,0 +1,61 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import com.Torvald.Terrarum.Game
+import com.Torvald.Terrarum.Terrarum
+
+/**
+ * Created by minjaesong on 16-01-15.
+ */
+internal class SetAV : ConsoleCommand {
+
+    override fun printUsage() {
+        val echo = Echo()
+        echo.execute("Set actor value of specific target to desired value.")
+        echo.execute("Usage: setav (id) <av> <val>")
+        echo.execute("blank ID for player")
+        echo.execute("Contaminated (float -> string) actor value will crash the game,")
+        echo.execute("    so make it sure before you issue the command.")
+        echo.execute("Use '__true' and '__false' for boolean value.")
+    }
+
+    override fun execute(args: Array<String>) {
+        val echo = Echo()
+
+        // setav <id or "player"> <av> <val>
+        if (args.size != 4 && args.size != 3) {
+            printUsage()
+        }
+        else if (args.size == 3) {
+            val `val`: Any
+
+            try {
+                `val` = Integer(args[2]) // try for integer
+            }
+            catch (e: NumberFormatException) {
+
+                try {
+                    `val` = args[2].toFloat() // try for float
+                }
+                catch (ee: NumberFormatException) {
+                    if (args[2].equals("__true", ignoreCase = true)) {
+                        `val` = true
+                    }
+                    else if (args[2].equals("__false", ignoreCase = true)) {
+                        `val` = false
+                    }
+                    else {
+                        `val` = args[2] // string if not number
+                    }
+                }
+
+            }
+
+            Terrarum.game.player.getActorValue()[args[1]] = `val`
+            echo.execute("Set " + args[1] + " to " + `val`)
+        }
+        else if (args.size == 4) {
+
+        }
+
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/SetBulletin.java b/src/com/Torvald/Terrarum/ConsoleCommand/SetBulletin.java
deleted file mode 100644
index b4368a6be..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/SetBulletin.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-import com.Torvald.Terrarum.LangPack.Lang;
-import com.Torvald.Terrarum.Terrarum;
-import com.Torvald.Terrarum.UserInterface.Notification;
-
-/**
- * Created by minjaesong on 16-01-23.
- */
-public class SetBulletin implements ConsoleCommand {
-    @Override
-    public void execute(String[] args) {
-        String[] testMsg = {
-                //Lang.get("ERROR_SAVE_CORRUPTED")
-                //, Lang.get("MENU_LABEL_CONTINUE_QUESTION")
-                "Bulletin test “Hello, world!”",
-                "世界一みんなの人気者  それは彼女のこと  アシュリー  달이 차오른다 가자"
-        };
-        send(testMsg);
-    }
-
-    @Override
-    public void printUsage() {
-
-    }
-
-    /**
-     * Actually send notifinator
-     * @param message real message
-     */
-    public void send(String[] message) {
-        Terrarum.game.sendNotification(message);
-        System.out.println("sent notifinator");
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/SetBulletin.kt b/src/com/Torvald/Terrarum/ConsoleCommand/SetBulletin.kt
new file mode 100644
index 000000000..a78054b6a
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/SetBulletin.kt
@@ -0,0 +1,31 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import com.Torvald.Terrarum.LangPack.Lang
+import com.Torvald.Terrarum.Terrarum
+import com.Torvald.Terrarum.UserInterface.Notification
+
+/**
+ * Created by minjaesong on 16-01-23.
+ */
+class SetBulletin : ConsoleCommand {
+    override fun execute(args: Array<String>) {
+        val testMsg = arrayOf(
+                Lang["ERROR_SAVE_CORRUPTED"],
+                Lang["MENU_LABEL_CONTINUE_QUESTION"]
+        )
+        send(testMsg)
+    }
+
+    override fun printUsage() {
+
+    }
+
+    /**
+     * Actually send notifinator
+     * @param message real message
+     */
+    fun send(message: Array<String>) {
+        Terrarum.game.sendNotification(message)
+        println("sent notifinator")
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/SetLocale.java b/src/com/Torvald/Terrarum/ConsoleCommand/SetLocale.java
deleted file mode 100644
index 7c2b7220f..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/SetLocale.java
+++ /dev/null
@@ -1,45 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-import com.Torvald.ImageFont.GameFontBase;
-import com.Torvald.Terrarum.LangPack.Lang;
-import com.Torvald.Terrarum.Terrarum;
-import org.apache.commons.csv.CSVRecord;
-import org.newdawn.slick.SlickException;
-
-import java.io.IOException;
-
-/**
- * Created by minjaesong on 16-01-25.
- */
-public class SetLocale implements ConsoleCommand {
-    @Override
-    public void execute(String[] args) {
-        if (args.length == 2) {
-            String prevLocale = Terrarum.Companion.getGameLocale();
-            Terrarum.Companion.setGameLocale(args[1]);
-            try {
-                new Lang();
-                new Echo().execute("Set locale to '" + Terrarum.Companion.getGameLocale() + "'.");
-            }
-            catch (IOException e) {
-                new Echo().execute("could not read lang file.");
-                Terrarum.Companion.setGameLocale(prevLocale);
-            }
-        }
-        else if (args.length == 1) {
-            Echo echo = new Echo();
-            echo.execute("Locales:");
-
-            CSVRecord record = Lang.getRecord("LANGUAGE_ID");
-            record.forEach(field -> echo.execute("] " + field));
-        }
-        else {
-            printUsage();
-        }
-    }
-
-    @Override
-    public void printUsage() {
-        new Echo().execute("Usage: setlocale [locale]");
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/SetLocale.kt b/src/com/Torvald/Terrarum/ConsoleCommand/SetLocale.kt
new file mode 100644
index 000000000..08acbe7e2
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/SetLocale.kt
@@ -0,0 +1,43 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import com.Torvald.ImageFont.GameFontBase
+import com.Torvald.Terrarum.LangPack.Lang
+import com.Torvald.Terrarum.Terrarum
+import org.apache.commons.csv.CSVRecord
+import org.newdawn.slick.SlickException
+
+import java.io.IOException
+
+/**
+ * Created by minjaesong on 16-01-25.
+ */
+class SetLocale : ConsoleCommand {
+    override fun execute(args: Array<String>) {
+        if (args.size == 2) {
+            val prevLocale = Terrarum.gameLocale
+            Terrarum.gameLocale = args[1]
+            try {
+                Echo().execute("Set locale to '" + Terrarum.gameLocale + "'.")
+            }
+            catch (e: IOException) {
+                Echo().execute("could not read lang file.")
+                Terrarum.gameLocale = prevLocale
+            }
+
+        }
+        else if (args.size == 1) {
+            val echo = Echo()
+            echo.execute("Locales:")
+
+            val record = Lang.getRecord("LANGUAGE_ID")
+            record.forEach { field -> echo.execute("] " + field) }
+        }
+        else {
+            printUsage()
+        }
+    }
+
+    override fun printUsage() {
+        Echo().execute("Usage: setlocale [locale]")
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/SpawnPhysTestBall.java b/src/com/Torvald/Terrarum/ConsoleCommand/SpawnPhysTestBall.java
deleted file mode 100644
index d40b136c0..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/SpawnPhysTestBall.java
+++ /dev/null
@@ -1,37 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-import com.Torvald.Terrarum.Actors.Actor;
-import com.Torvald.Terrarum.Actors.ActorWithBody;
-import com.Torvald.Terrarum.Actors.PhysTestBall;
-import com.Torvald.Terrarum.MapDrawer.MapCamera;
-import com.Torvald.Terrarum.Terrarum;
-
-/**
- * Created by minjaesong on 16-03-05.
- */
-public class SpawnPhysTestBall implements ConsoleCommand {
-    @Override
-    public void execute(String[] args) throws Exception {
-        if (args.length == 2) {
-            int mouseX = Terrarum.appgc.getInput().getMouseX();
-            int mouseY = Terrarum.appgc.getInput().getMouseY();
-
-            float elasticity = new Float(args[1]);
-
-            ActorWithBody ball = new PhysTestBall();
-            ball.setPosition(mouseX + MapCamera.getCameraX()
-                    , mouseY + MapCamera.getCameraY());
-            ball.setElasticity(elasticity);
-
-            Terrarum.game.addActor(ball);
-        }
-        else {
-            printUsage();
-        }
-    }
-
-    @Override
-    public void printUsage() {
-        new Echo().execute("usage: spawnball [elasticity]");
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/SpawnPhysTestBall.kt b/src/com/Torvald/Terrarum/ConsoleCommand/SpawnPhysTestBall.kt
new file mode 100644
index 000000000..b9669748a
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/SpawnPhysTestBall.kt
@@ -0,0 +1,38 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import com.Torvald.Terrarum.Actors.Actor
+import com.Torvald.Terrarum.Actors.ActorWithBody
+import com.Torvald.Terrarum.Actors.PhysTestBall
+import com.Torvald.Terrarum.MapDrawer.MapCamera
+import com.Torvald.Terrarum.Terrarum
+
+/**
+ * Created by minjaesong on 16-03-05.
+ */
+class SpawnPhysTestBall : ConsoleCommand {
+    @Throws(Exception::class)
+    override fun execute(args: Array<String>) {
+        if (args.size == 2) {
+            val mouseX = Terrarum.appgc.input.mouseX
+            val mouseY = Terrarum.appgc.input.mouseY
+
+            val elasticity = args[1].toFloat()
+
+            val ball = PhysTestBall()
+            ball.setPosition(
+                    (mouseX + MapCamera.cameraX).toFloat(),
+                    (mouseY + MapCamera.cameraY).toFloat()
+            )
+            ball.elasticity = elasticity
+
+            Terrarum.game.addActor(ball)
+        }
+        else {
+            printUsage()
+        }
+    }
+
+    override fun printUsage() {
+        Echo().execute("usage: spawnball [elasticity]")
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/TeleportPlayer.java b/src/com/Torvald/Terrarum/ConsoleCommand/TeleportPlayer.java
deleted file mode 100644
index cc4e8ccce..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/TeleportPlayer.java
+++ /dev/null
@@ -1,37 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-import com.Torvald.Terrarum.Game;
-import com.Torvald.Terrarum.MapDrawer.MapDrawer;
-import com.Torvald.Terrarum.Terrarum;
-
-/**
- * Created by minjaesong on 16-01-24.
- */
-public class TeleportPlayer implements ConsoleCommand {
-
-    @Override
-    public void execute(String[] args) {
-        if (args.length != 3) {
-            printUsage();
-        }
-        else {
-
-            int x, y;
-            try {
-                x = new Integer((args[1])) * MapDrawer.getTILE_SIZE() + (MapDrawer.getTILE_SIZE() / 2);
-                y = new Integer((args[2])) * MapDrawer.getTILE_SIZE() + (MapDrawer.getTILE_SIZE() / 2);
-            }
-            catch (NumberFormatException e) {
-                new Echo().execute("Wrong number input.");
-                return;
-            }
-
-            Terrarum.game.player.setPosition(x, y);
-        }
-    }
-
-    @Override
-    public void printUsage() {
-        new Echo().execute("Usage: teleport [x-tile] [y-tile]");
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/TeleportPlayer.kt b/src/com/Torvald/Terrarum/ConsoleCommand/TeleportPlayer.kt
new file mode 100644
index 000000000..d244eee5c
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/TeleportPlayer.kt
@@ -0,0 +1,36 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import com.Torvald.Terrarum.Game
+import com.Torvald.Terrarum.MapDrawer.MapDrawer
+import com.Torvald.Terrarum.Terrarum
+
+/**
+ * Created by minjaesong on 16-01-24.
+ */
+class TeleportPlayer : ConsoleCommand {
+
+    override fun execute(args: Array<String>) {
+        if (args.size != 3) {
+            printUsage()
+        }
+        else {
+
+            val x: Int
+            val y: Int
+            try {
+                x = args[1].toInt() * MapDrawer.TILE_SIZE + MapDrawer.TILE_SIZE / 2
+                y = args[2].toInt() * MapDrawer.TILE_SIZE + MapDrawer.TILE_SIZE / 2
+            }
+            catch (e: NumberFormatException) {
+                Echo().execute("Wrong number input.")
+                return
+            }
+
+            Terrarum.game.player.setPosition(x.toFloat(), y.toFloat())
+        }
+    }
+
+    override fun printUsage() {
+        Echo().execute("Usage: teleport [x-tile] [y-tile]")
+    }
+}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/ToggleNoClip.java b/src/com/Torvald/Terrarum/ConsoleCommand/ToggleNoClip.java
deleted file mode 100644
index 4d6efb387..000000000
--- a/src/com/Torvald/Terrarum/ConsoleCommand/ToggleNoClip.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.Torvald.Terrarum.ConsoleCommand;
-
-import com.Torvald.Terrarum.Game;
-import com.Torvald.Terrarum.Terrarum;
-
-/**
- * Created by minjaesong on 16-01-19.
- */
-public class ToggleNoClip implements ConsoleCommand {
-    @Override
-    public void execute(String[] args) {
-        boolean status = Terrarum.game.player.isNoClip();
-
-        Terrarum.game.player.setNoClip(!status);
-        new Echo().execute("Set no-clip status to " + String.valueOf(!status));
-    }
-
-    @Override
-    public void printUsage() {
-        new Echo().execute("toggle no-clip status of player");
-    }
-}
diff --git a/src/com/Torvald/Terrarum/ConsoleCommand/ToggleNoClip.kt b/src/com/Torvald/Terrarum/ConsoleCommand/ToggleNoClip.kt
new file mode 100644
index 000000000..24dc5fb44
--- /dev/null
+++ b/src/com/Torvald/Terrarum/ConsoleCommand/ToggleNoClip.kt
@@ -0,0 +1,20 @@
+package com.Torvald.Terrarum.ConsoleCommand
+
+import com.Torvald.Terrarum.Game
+import com.Torvald.Terrarum.Terrarum
+
+/**
+ * Created by minjaesong on 16-01-19.
+ */
+class ToggleNoClip : ConsoleCommand {
+    override fun execute(args: Array<String>) {
+        val status = Terrarum.game.player.isNoClip()
+
+        Terrarum.game.player.setNoClip(!status)
+        Echo().execute("Set no-clip status to " + (!status).toString())
+    }
+
+    override fun printUsage() {
+        Echo().execute("toggle no-clip status of player")
+    }
+}
diff --git a/src/com/Torvald/Terrarum/Game b/src/com/Torvald/Terrarum/Game
deleted file mode 100644
index 34aec2639..000000000
--- a/src/com/Torvald/Terrarum/Game
+++ /dev/null
@@ -1,403 +0,0 @@
-package com.Torvald.Terrarum;
-
-import com.Torvald.Rand.HQRNG;
-import com.Torvald.Terrarum.Actors.*;
-import com.Torvald.Terrarum.ConsoleCommand.Authenticator;
-import com.Torvald.Terrarum.ConsoleCommand.CommandDict;
-import com.Torvald.Terrarum.GameControl.GameController;
-import com.Torvald.Terrarum.GameControl.KeyMap;
-import com.Torvald.Terrarum.GameMap.GameMap;
-import com.Torvald.Terrarum.GameMap.WorldTime;
-import com.Torvald.Terrarum.MapDrawer.LightmapRenderer;
-import com.Torvald.Terrarum.MapDrawer.MapCamera;
-import com.Torvald.Terrarum.MapDrawer.MapDrawer;
-import com.Torvald.Terrarum.MapGenerator.MapGenerator;
-import com.Torvald.Terrarum.MapGenerator.RoguelikeRandomiser;
-import com.Torvald.Terrarum.TileProperties.TilePropCodex;
-import com.Torvald.Terrarum.TileStat.TileStat;
-import com.Torvald.Terrarum.UserInterface.*;
-import com.jme3.math.FastMath;
-import org.lwjgl.opengl.ARBShaderObjects;
-import org.lwjgl.opengl.GL11;
-import org.newdawn.slick.*;
-import org.newdawn.slick.Graphics;
-import org.newdawn.slick.fills.GradientFill;
-import org.newdawn.slick.geom.Rectangle;
-import org.newdawn.slick.state.BasicGameState;
-import org.newdawn.slick.state.StateBasedGame;
-import shader.Shader;
-
-import java.io.BufferedReader;
-import java.io.FileInputStream;
-import java.io.InputStreamReader;
-import java.lang.management.ManagementFactory;
-import java.util.HashSet;
-
-/**
- * Created by minjaesong on 15-12-30.
- */
-public class Game extends BasicGameState {
-
-    public static long memInUse;
-    public static long totalVMMem;
-    int game_mode = 0;
-
-    public GameMap map;
-
-    public HashSet<Actor> actorContainer = new HashSet<>();
-    public HashSet<UIHandler> uiContainer = new HashSet<>();
-
-    public UIHandler consoleHandler;
-    public UIHandler debugWindow;
-    public UIHandler notifinator;
-
-    Player player;
-
-    private Image GRADIENT_IMAGE;
-    private Rectangle skyBox;
-
-    public float screenZoom = 1.0f;
-    public final float ZOOM_MAX = 2.0f;
-    public final float ZOOM_MIN = 0.25f;
-
-    private Shader shader12BitCol;
-    private Shader shaderBlurH;
-    private Shader shaderBlurV;
-
-    public static Authenticator auth = new Authenticator();
-
-    public Game() throws SlickException {  }
-
-
-    private boolean useShader;
-    private int shaderProgram = 0;
-
-
-    private final int ENV_COLTEMP_SUNRISE = 2500;
-    private final int ENV_SUNLIGHT_DELTA = MapDrawer.getENV_COLTEMP_NOON() - ENV_COLTEMP_SUNRISE;
-
-
-    @Override
-    public void init(GameContainer gameContainer, StateBasedGame stateBasedGame) throws
-            SlickException {
-        new GameController();
-        KeyMap.build();
-        GameController.setKeyMap(new KeyMap());
-
-
-        shader12BitCol = Shader.makeShader("./res/4096.vrt", "./res/4096.frg");
-        shaderBlurH = Shader.makeShader("./res/blurH.vrt", "./res/blur.frg");
-        shaderBlurV = Shader.makeShader("./res/blurV.vrt", "./res/blur.frg");
-
-
-        GRADIENT_IMAGE = new Image("res/graphics/sky_colour.png");
-        skyBox = new Rectangle(0, 0, Terrarum.WIDTH, Terrarum.HEIGHT);
-
-        new WorldTime();
-        new TilePropCodex();
-        // new ItemPropCodex() -- This is kotlin object and already initialised.
-
-        map = new GameMap(8192, 2048);
-        map.setGravitation(9.8f);
-
-        MapGenerator.attachMap(map);
-        MapGenerator.setSeed(0x51621D2);
-        //MapGenerator.setSeed(new HQRNG().nextLong());
-        MapGenerator.generateMap();
-
-        RoguelikeRandomiser.setSeed(0x540198);
-        //RoguelikeRandomiser.setSeed(new HQRNG().nextLong());
-
-
-        new CommandDict();
-
-        // add new player and put it to actorContainer
-        //player = new Player();
-        player = PFSigrid.build();
-        //player.setNoClip(true);
-        actorContainer.add(player);
-
-        consoleHandler = new UIHandler(new ConsoleWindow());
-        consoleHandler.setPosition(0, 0);
-
-        debugWindow = new UIHandler(new BasicDebugInfoWindow());
-        debugWindow.setPosition(0, 0);
-
-        notifinator = new UIHandler(new Notification());
-        notifinator.setPosition(
-                (Terrarum.WIDTH - notifinator.getUI().getWidth())
-                        / 2
-                , Terrarum.HEIGHT - notifinator.getUI().getHeight()
-        );
-        notifinator.setVisibility(true);
-    }
-
-    public Player getPlayer() {
-        return player;
-    }
-
-    @Override
-    public void update(GameContainer gc, StateBasedGame sbg, int delta_t) {
-        setAppTitle();
-
-        // GL at after_sunrise-noon_before_sunset
-        //map.setGlobalLight();
-
-        GameController.processInput(gc.getInput());
-
-        TileStat.update();
-
-        MapDrawer.update(gc, delta_t);
-        MapCamera.update(gc, delta_t);
-
-        actorContainer.forEach(actor -> actor.update(gc, delta_t));
-        actorContainer.forEach(
-                actor -> {
-                    if (actor instanceof Visible) {
-                        ((Visible) actor).updateBodySprite(gc, delta_t);
-                    }
-                    if (actor instanceof Glowing) {
-                        ((Glowing) actor).updateGlowSprite(gc, delta_t);
-                    }
-                }
-        );
-
-        uiContainer.forEach(ui -> ui.update(gc, delta_t));
-
-        notifinator.update(gc, delta_t);
-
-        Terrarum.appgc.setVSync(Terrarum.appgc.getFPS() >= Terrarum.VSYNC_TRIGGER_THRESHOLD);
-    }
-
-    private void setAppTitle() {
-        Runtime runtime = Runtime.getRuntime();
-        memInUse = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage().getUsed() >> 20;
-        totalVMMem = runtime.maxMemory() >> 20;
-
-        Terrarum.appgc.setTitle(
-                "Simple Slick Game — FPS: "
-                        + Terrarum.appgc.getFPS() + " ("
-                        + String.valueOf(Terrarum.TARGET_INTERNAL_FPS)
-                        + ") — "
-                        + String.valueOf(memInUse) + "M / "
-                        + String.valueOf(totalVMMem) + "M"
-        );
-    }
-
-    @Override
-    public void render(GameContainer gc, StateBasedGame sbg, Graphics g) {
-
-        drawSkybox(g);
-
-        // compensate for zoom. UIs have to be treated specially! (see UIHandler)
-        g.translate(
-                  -MapCamera.getCameraX() * screenZoom
-                , -MapCamera.getCameraY() * screenZoom
-        );
-
-        MapCamera.renderBehind(gc, g);
-
-        actorContainer.forEach(
-                actor -> { if (actor instanceof Visible) ((Visible) actor).drawBody(gc, g); }
-        );
-        actorContainer.forEach(
-                actor -> { if (actor instanceof Glowing) ((Glowing) actor).drawGlow(gc, g); }
-        );
-
-        LightmapRenderer.renderLightMap();
-
-        MapCamera.renderFront(gc, g);
-        MapDrawer.render(gc, g);
-
-        setBlendModeMul();
-        MapDrawer.drawEnvOverlay(g);
-        LightmapRenderer.draw(g);
-        setBlendModeNormal();
-
-        uiContainer.forEach(ui -> ui.render(gc, g));
-        debugWindow.render(gc, g);
-        consoleHandler.render(gc, g);
-        notifinator.render(gc, g);
-    }
-
-    public boolean addActor(Actor e) {
-        return actorContainer.add(e);
-    }
-
-    public boolean removeActor(Actor e) {
-        return actorContainer.remove(e);
-    }
-
-    private Color[] getGradientColour(int timeSec) {
-        Color[] colourTable = new Color[2];
-
-        int gradMapWidth = GRADIENT_IMAGE.getWidth();
-        int phase = Math.round((timeSec / WorldTime.DAY_LENGTH) * gradMapWidth);
-
-        //update in every INTERNAL_FRAME frames
-        colourTable[0] = GRADIENT_IMAGE.getColor(phase, 0);
-        colourTable[1] = GRADIENT_IMAGE.getColor(phase, 1);
-
-        return colourTable;
-    }
-
-    public void keyPressed(int key, char c) {
-        GameController.keyPressed(key, c);
-    }
-
-    public void keyReleased(int key, char c) {
-        GameController.keyReleased(key, c);
-    }
-
-    public void mouseMoved(int oldx, int oldy, int newx, int newy) {
-        GameController.mouseMoved(oldx, oldy, newx, newy);
-    }
-
-    public void mouseDragged(int oldx, int oldy, int newx, int newy) {
-        GameController.mouseDragged(oldx, oldy, newx, newy);
-    }
-
-    public void mousePressed(int button, int x, int y) {
-        GameController.mousePressed(button, x, y);
-    }
-
-    public void mouseReleased(int button, int x, int y) {
-        GameController.mouseReleased(button, x, y);
-    }
-
-    public void mouseWheelMoved(int change) {
-        GameController.mouseWheelMoved(change);
-    }
-
-    public void controllerButtonPressed(int controller, int button) {
-        GameController.controllerButtonPressed(controller, button);
-    }
-
-    public void controllerButtonReleased(int controller, int button) {
-        GameController.controllerButtonReleased(controller, button);
-    }
-
-    @Override
-    public int getID() {
-        return Terrarum.SCENE_ID_GAME;
-    }
-
-    private void drawSkybox(Graphics g) {
-        Color[] colourTable = getGradientColour(Terrarum.game.map.getWorldTime().elapsedSeconds());
-        GradientFill skyColourFill = new GradientFill(0, 0, colourTable[0], 0, Terrarum.HEIGHT, colourTable[1]);
-        g.fill(skyBox, skyColourFill);
-    }
-
-    private void setBlendModeMul() {
-        GL11.glEnable(GL11.GL_BLEND);
-        GL11.glBlendFunc(GL11.GL_DST_COLOR, GL11.GL_ONE_MINUS_SRC_ALPHA);
-    }
-
-    private void setBlendModeNormal() {
-        GL11.glDisable(GL11.GL_BLEND);
-        Terrarum.appgc.getGraphics().setDrawMode(Graphics.MODE_NORMAL);
-    }
-
-    public void sendNotification(String[] msg) {
-        ((Notification) notifinator.getUI()).sendNotification(msg);
-    }
-
-    private int createShader(String filename, int shaderType) throws Exception {
-        int shader = 0;
-        try {
-            shader = ARBShaderObjects.glCreateShaderObjectARB(shaderType);
-
-            if(shader == 0)
-                return 0;
-
-            ARBShaderObjects.glShaderSourceARB(shader, readFileAsString(filename));
-            ARBShaderObjects.glCompileShaderARB(shader);
-
-            if (ARBShaderObjects.glGetObjectParameteriARB(shader, ARBShaderObjects.GL_OBJECT_COMPILE_STATUS_ARB) == GL11.GL_FALSE)
-                throw new RuntimeException("Error creating shader: " + getLogInfo(shader));
-
-            return shader;
-        }
-        catch(Exception exc) {
-            ARBShaderObjects.glDeleteObjectARB(shader);
-            throw exc;
-        }
-    }
-
-    private static String getLogInfo(int obj) {
-        return ARBShaderObjects.glGetInfoLogARB(obj, ARBShaderObjects.glGetObjectParameteriARB(obj, ARBShaderObjects.GL_OBJECT_INFO_LOG_LENGTH_ARB));
-    }
-
-    private String readFileAsString(String filename) throws Exception {
-        StringBuilder source = new StringBuilder();
-
-        FileInputStream in = new FileInputStream(filename);
-
-        Exception exception = null;
-
-        BufferedReader reader;
-        try{
-            reader = new BufferedReader(new InputStreamReader(in,"UTF-8"));
-
-            Exception innerExc= null;
-            try {
-                String line;
-                while((line = reader.readLine()) != null)
-                    source.append(line).append('\n');
-            }
-            catch(Exception exc) {
-                exception = exc;
-            }
-            finally {
-                try {
-                    reader.close();
-                }
-                catch(Exception exc) {
-                    if(innerExc == null)
-                        innerExc = exc;
-                    else
-                        exc.printStackTrace();
-                }
-            }
-
-            if(innerExc != null)
-                throw innerExc;
-        }
-        catch(Exception exc) {
-            exception = exc;
-        }
-        finally {
-            try {
-                in.close();
-            }
-            catch(Exception exc) {
-                if(exception == null)
-                    exception = exc;
-                else
-                    exc.printStackTrace();
-            }
-
-            if(exception != null)
-                throw exception;
-        }
-
-        return source.toString();
-    }
-
-    public long getMemInUse() {
-        return memInUse;
-    }
-
-    public long getTotalVMMem() {
-        return totalVMMem;
-    }
-
-    private int getSunlightColtemp() {
-        int half_today = WorldTime.DAY_LENGTH / 2;
-        int timeToday = WorldTime.elapsedSeconds();
-        float sunAlt = (timeToday < half_today) ?
-                        timeToday / half_today * FastMath.PI
-                       : 0f;
-        return Math.round(ENV_COLTEMP_SUNRISE + (ENV_SUNLIGHT_DELTA * FastMath.sin(sunAlt)));
-    }
-}
diff --git a/src/com/Torvald/Terrarum/Game.kt b/src/com/Torvald/Terrarum/Game.kt
index 2466e9246..3d5c3e631 100644
--- a/src/com/Torvald/Terrarum/Game.kt
+++ b/src/com/Torvald/Terrarum/Game.kt
@@ -185,7 +185,7 @@ constructor() : BasicGameState() {
 
         // compensate for zoom. UIs have to be treated specially! (see UIHandler)
         g.translate(
-                -MapCamera.getCameraX() * screenZoom, -MapCamera.getCameraY() * screenZoom)
+                -MapCamera.cameraX * screenZoom, -MapCamera.cameraY * screenZoom)
 
         MapCamera.renderBehind(gc, g)
 
@@ -305,7 +305,5 @@ constructor() : BasicGameState() {
     /**
      * extension function for org.newdawn.slick.Color
      */
-    fun Color.getRGB24(): Int = (this.redByte shl 16) or
-                                (this.greenByte shl 8) or
-                                (this.blueByte)
+    fun Color.getRGB24(): Int = (this.redByte shl 16) or (this.greenByte shl 8) or (this.blueByte)
 }
diff --git a/src/com/Torvald/Terrarum/GameControl/GameController.kt b/src/com/Torvald/Terrarum/GameControl/GameController.kt
index 05dca0526..b3e44d330 100644
--- a/src/com/Torvald/Terrarum/GameControl/GameController.kt
+++ b/src/com/Torvald/Terrarum/GameControl/GameController.kt
@@ -16,8 +16,8 @@ import org.newdawn.slick.Input
 object GameController {
 
     fun processInput(input: Input) {
-        val mouseTileX = ((MapCamera.getCameraX() + input.mouseX / Terrarum.game.screenZoom) / MapDrawer.TILE_SIZE).toInt()
-        val mouseTileY = ((MapCamera.getCameraY() + input.mouseY / Terrarum.game.screenZoom) / MapDrawer.TILE_SIZE).toInt()
+        val mouseTileX = ((MapCamera.cameraX + input.mouseX / Terrarum.game.screenZoom) / MapDrawer.TILE_SIZE).toInt()
+        val mouseTileY = ((MapCamera.cameraY + input.mouseY / Terrarum.game.screenZoom) / MapDrawer.TILE_SIZE).toInt()
 
 
         KeyToggler.update(input)
diff --git a/src/com/Torvald/Terrarum/GameMap/GameMap.java b/src/com/Torvald/Terrarum/GameMap/GameMap.java
deleted file mode 100644
index 7125ff7ce..000000000
--- a/src/com/Torvald/Terrarum/GameMap/GameMap.java
+++ /dev/null
@@ -1,247 +0,0 @@
-/* 
- * MapLoader version 1.2
- * Release date 2013-05-20
- * Copyright 2013 SKYHi14
- * 
- * The program is distributed in GNU GPL Licence version 3.
- * See http://www.gnu.org/licenses/gpl.html for information.
- */
-
-package com.Torvald.Terrarum.GameMap;
-
-import org.newdawn.slick.SlickException;
-
-public class GameMap {
-
-    //layers
-    private volatile MapLayer layerWall;
-    private volatile MapLayer layerTerrain;
-    private volatile MapLayer layerWire;
-    private volatile PairedMapLayer wallDamage;
-    private volatile PairedMapLayer terrainDamage;
-
-    //properties
-    private int width;
-    private int height;
-    private int spawnX;
-    private int spawnY;
-
-    public static transient final int WALL = 0;
-    public static transient final int TERRAIN = 1;
-    public static transient final int WIRE = 2;
-
-    //public World physWorld = new World( new Vec2(0, -TerrarumMain.game.gravitationalAccel) );
-    //physics
-    private float gravitation;
-    private int globalLight;
-    private WorldTime worldTime;
-
-    public static transient final int TILES_SUPPORTED = MapLayer.RANGE * PairedMapLayer.RANGE;
-    public static transient final byte BITS = 1; // 1 for Byte, 2 for Char, 4 for Int, 8 for Long
-    public static transient final byte LAYERS = 4; // terrain, wall (terrainDamage + wallDamage), wire
-
-    /**
-     * @param width
-     * @param height
-     * @throws SlickException
-     */
-    public GameMap(int width, int height) throws SlickException {
-        this.width = width;
-        this.height = height;
-        this.spawnX = width / 2;
-        this.spawnY = 200;
-
-        layerTerrain = new MapLayer(width, height);
-        layerWall = new MapLayer(width, height);
-        layerWire = new MapLayer(width, height);
-        terrainDamage = new PairedMapLayer(width, height);
-        wallDamage = new PairedMapLayer(width, height);
-
-        globalLight = (char) 0;
-        worldTime = new WorldTime();
-    }
-
-    public void setGravitation(float g) {
-        gravitation = g;
-    }
-
-    /**
-     * Get 2d array data of terrain
-     *
-     * @return byte[][] terrain layer
-     */
-    public byte[][] getTerrainArray() {
-        return layerTerrain.data;
-    }
-
-    /**
-     * Get 2d array data of wall
-     *
-     * @return byte[][] wall layer
-     */
-    public byte[][] getWallArray() {
-        return layerWall.data;
-    }
-
-    /**
-     * Get 2d array data of wire
-     *
-     * @return byte[][] wire layer
-     */
-    public byte[][] getWireArray() {
-        return layerWire.data;
-    }
-
-    /**
-     * Get paired array data of damage codes.
-     * Format: 0baaaabbbb, aaaa for x = 0, 2, 4, ..., bbbb for x = 1, 3, 5, ...
-     * @return byte[][] damage code pair
-     */
-    public byte[][] getDamageDataArray() {
-        return terrainDamage.dataPair;
-    }
-
-    /**
-     * Get MapLayer object of terrain
-     *
-     * @return MapLayer terrain layer
-     */
-    public MapLayer getLayerTerrain() {
-        return layerTerrain;
-    }
-
-    public MapLayer getLayerWall() {
-        return layerWall;
-    }
-
-    public MapLayer getLayerWire() {
-        return layerWire;
-    }
-
-    public PairedMapLayer getTerrainDamage() {
-        return terrainDamage;
-    }
-
-    public PairedMapLayer getWallDamage() {
-        return wallDamage;
-    }
-
-    public int getTileFromWall(int x, int y) {
-        return layerWall.getTile(x, y) * PairedMapLayer.RANGE + getWallDamage(x, y);
-    }
-
-    public int getTileFromTerrain(int x, int y) {
-        return layerTerrain.getTile(x, y) * PairedMapLayer.RANGE + getTerrainDamage(x, y);
-    }
-
-    public int getTileFromWire(int x, int y) {
-        return layerWire.getTile(x, y);
-    }
-
-    public int getWallDamage(int x, int y) {
-        return wallDamage.getData(x, y);
-    }
-
-    public int getTerrainDamage(int x, int y) {
-        return terrainDamage.getData(x, y);
-    }
-
-    /**
-     * Set the tile of wall as specified, with damage value of zero.
-     * @param x
-     * @param y
-     * @param combinedTilenum (tilenum * 16) + damage
-     */
-    public void setTileWall(int x, int y, int combinedTilenum) {
-        setTileWall(x, y
-                , (byte) (combinedTilenum / PairedMapLayer.RANGE)
-                , combinedTilenum % PairedMapLayer.RANGE);
-    }
-
-    /**
-     * Set the tile of wall as specified, with damage value of zero.
-     * @param x
-     * @param y
-     * @param combinedTilenum (tilenum * 16) + damage
-     */
-    public void setTileTerrain(int x, int y, int combinedTilenum) {
-        setTileTerrain(x, y
-                , (byte) (combinedTilenum / PairedMapLayer.RANGE)
-                , combinedTilenum % PairedMapLayer.RANGE);
-    }
-
-    public void setTileWall(int x, int y, byte tile, int damage) {
-        layerWall.setTile(x, y, tile);
-        wallDamage.setData(x, y, damage);
-    }
-
-    public void setTileTerrain(int x, int y, byte tile, int damage) {
-        layerTerrain.setTile(x, y, tile);
-        terrainDamage.setData(x, y, damage);
-    }
-
-    public void setTileWire(int x, int y, byte tile) {
-        layerWire.data[y][x] = tile;
-    }
-
-    public int getTileFrom(int mode, int x, int y) {
-        if (mode == TERRAIN) { return getTileFromTerrain(x, y); }
-        else if (mode == WALL) { return getTileFromWall(x, y); }
-        else if (mode == WIRE) { return getTileFromWire(x, y); }
-        else throw new IllegalArgumentException("illegal mode input: " + String.valueOf(mode));
-    }
-
-    public void overwriteLayerWall(MapLayer layerData) {
-        layerWall = layerData;
-    }
-
-    public void overwriteLayerTerrain(MapLayer layerData) {
-        layerTerrain = layerData;
-    }
-
-    private int uint8ToInt32(byte x) {
-        int ret;
-        if ((x & 0b1000_0000) != 0) {
-            ret = x & 0b1111_1111;
-        } else {
-            ret = x;
-        }
-        return ret;
-    }
-
-    public float getGravitation() {
-        return gravitation;
-    }
-
-    public int getGlobalLight() {
-        return globalLight;
-    }
-
-    public void setGlobalLight(int globalLight) {
-        this.globalLight = globalLight;
-    }
-
-    public WorldTime getWorldTime() {
-        return worldTime;
-    }
-
-    public void updateWorldTime(int delta) {
-        worldTime.update(delta);
-    }
-
-    public int getWidth() {
-        return width;
-    }
-
-    public int getHeight() {
-        return height;
-    }
-
-    public int getSpawnX() {
-        return spawnX;
-    }
-
-    public int getSpawnY() {
-        return spawnY;
-    }
-}
\ No newline at end of file
diff --git a/src/com/Torvald/Terrarum/GameMap/GameMap.kt b/src/com/Torvald/Terrarum/GameMap/GameMap.kt
new file mode 100644
index 000000000..44a529569
--- /dev/null
+++ b/src/com/Torvald/Terrarum/GameMap/GameMap.kt
@@ -0,0 +1,178 @@
+/* 
+ * MapLoader version 1.2
+ * Release date 2013-05-20
+ * Copyright 2013 SKYHi14
+ * 
+ * The program is distributed in GNU GPL Licence version 3.
+ * See http://www.gnu.org/licenses/gpl.html for information.
+ */
+
+package com.Torvald.Terrarum.GameMap
+
+import org.newdawn.slick.SlickException
+
+class GameMap
+/**
+ * @param width
+ * *
+ * @param height
+ * *
+ * @throws SlickException
+ */
+@Throws(SlickException::class)
+constructor(//properties
+        val width: Int, val height: Int) {
+
+    //layers
+    val layerWall: MapLayer
+    /**
+     * Get MapLayer object of terrain
+
+     * @return MapLayer terrain layer
+     */
+    val layerTerrain: MapLayer
+    val layerWire: MapLayer
+    val wallDamage: PairedMapLayer
+    val terrainDamage: PairedMapLayer
+    val spawnX: Int
+    val spawnY: Int
+
+    //public World physWorld = new World( new Vec2(0, -TerrarumMain.game.gravitationalAccel) );
+    //physics
+    var gravitation: Float = 0.toFloat()
+    var globalLight: Int = 0
+    val worldTime: WorldTime
+
+    init {
+        this.spawnX = width / 2
+        this.spawnY = 200
+
+        layerTerrain = MapLayer(width, height)
+        layerWall = MapLayer(width, height)
+        layerWire = MapLayer(width, height)
+        terrainDamage = PairedMapLayer(width, height)
+        wallDamage = PairedMapLayer(width, height)
+
+        globalLight = 0.toChar().toInt()
+        worldTime = WorldTime()
+    }
+
+    /**
+     * Get 2d array data of terrain
+
+     * @return byte[][] terrain layer
+     */
+    val terrainArray: Array<ByteArray>
+        get() = layerTerrain.data
+
+    /**
+     * Get 2d array data of wall
+
+     * @return byte[][] wall layer
+     */
+    val wallArray: Array<ByteArray>
+        get() = layerWall.data
+
+    /**
+     * Get 2d array data of wire
+
+     * @return byte[][] wire layer
+     */
+    val wireArray: Array<ByteArray>
+        get() = layerWire.data
+
+    /**
+     * Get paired array data of damage codes.
+     * Format: 0baaaabbbb, aaaa for x = 0, 2, 4, ..., bbbb for x = 1, 3, 5, ...
+     * @return byte[][] damage code pair
+     */
+    val damageDataArray: Array<ByteArray>
+        get() = terrainDamage.dataPair
+
+    fun getTileFromWall(x: Int, y: Int): Int {
+        return layerWall.getTile(x, y) * PairedMapLayer.RANGE + getWallDamage(x, y)
+    }
+
+    fun getTileFromTerrain(x: Int, y: Int): Int {
+        return layerTerrain.getTile(x, y) * PairedMapLayer.RANGE + getTerrainDamage(x, y)
+    }
+
+    fun getTileFromWire(x: Int, y: Int): Int {
+        return layerWire.getTile(x, y)
+    }
+
+    fun getWallDamage(x: Int, y: Int): Int {
+        return wallDamage.getData(x, y)
+    }
+
+    fun getTerrainDamage(x: Int, y: Int): Int {
+        return terrainDamage.getData(x, y)
+    }
+
+    /**
+     * Set the tile of wall as specified, with damage value of zero.
+     * @param x
+     * *
+     * @param y
+     * *
+     * @param combinedTilenum (tilenum * 16) + damage
+     */
+    fun setTileWall(x: Int, y: Int, combinedTilenum: Int) {
+        setTileWall(x, y, (combinedTilenum / PairedMapLayer.RANGE).toByte(), combinedTilenum % PairedMapLayer.RANGE)
+    }
+
+    /**
+     * Set the tile of wall as specified, with damage value of zero.
+     * @param x
+     * *
+     * @param y
+     * *
+     * @param combinedTilenum (tilenum * 16) + damage
+     */
+    fun setTileTerrain(x: Int, y: Int, combinedTilenum: Int) {
+        setTileTerrain(x, y, (combinedTilenum / PairedMapLayer.RANGE).toByte(), combinedTilenum % PairedMapLayer.RANGE)
+    }
+
+    fun setTileWall(x: Int, y: Int, tile: Byte, damage: Int) {
+        layerWall.setTile(x, y, tile)
+        wallDamage.setData(x, y, damage)
+    }
+
+    fun setTileTerrain(x: Int, y: Int, tile: Byte, damage: Int) {
+        layerTerrain.setTile(x, y, tile)
+        terrainDamage.setData(x, y, damage)
+    }
+
+    fun setTileWire(x: Int, y: Int, tile: Byte) {
+        layerWire.data[y][x] = tile
+    }
+
+    fun getTileFrom(mode: Int, x: Int, y: Int): Int {
+        if (mode == TERRAIN) {
+            return getTileFromTerrain(x, y)
+        }
+        else if (mode == WALL) {
+            return getTileFromWall(x, y)
+        }
+        else if (mode == WIRE) {
+            return getTileFromWire(x, y)
+        }
+        else
+            throw IllegalArgumentException("illegal mode input: " + mode.toString())
+    }
+
+    fun updateWorldTime(delta: Int) {
+        worldTime.update(delta)
+    }
+
+    companion object {
+
+        @Transient val WALL = 0
+        @Transient val TERRAIN = 1
+        @Transient val WIRE = 2
+
+        @Transient val TILES_SUPPORTED = MapLayer.RANGE * PairedMapLayer.RANGE
+        @Transient val BITS: Byte = 1 // 1 for Byte, 2 for Char, 4 for Int, 8 for Long
+        @Transient val LAYERS: Byte = 4 // terrain, wall (terrainDamage + wallDamage), wire
+    }
+}
\ No newline at end of file
diff --git a/src/com/Torvald/Terrarum/GameMap/MapLayer.java b/src/com/Torvald/Terrarum/GameMap/MapLayer.java
deleted file mode 100644
index 203abc6ac..000000000
--- a/src/com/Torvald/Terrarum/GameMap/MapLayer.java
+++ /dev/null
@@ -1,126 +0,0 @@
-package com.Torvald.Terrarum.GameMap;
-
-import java.io.Serializable;
-import java.util.Iterator;
-import java.util.Spliterator;
-import java.util.function.Consumer;
-
-/**
- * Created by minjaesong on 16-01-17.
- */
-public class MapLayer implements Iterable<Byte> {
-
-    byte[][] data;
-
-    public int width;
-    public int height;
-
-    public static transient final int RANGE = 256;
-
-    public MapLayer(int width, int height) {
-        this.width = width;
-        this.height = height;
-
-        data = new byte[height][width];
-
-        for (int i = 0; i < height; i++) {
-            for (int j = 0; j < width; j++) {
-                data[i][j] = 0;
-            }
-        }
-    }
-
-    /**
-     * Returns an iterator over elements of type {@code T}.
-     *
-     * @return an Iterator.
-     */
-    @Override
-    public Iterator<Byte> iterator() {
-        return new Iterator<Byte>() {
-
-            private int iteratorCount = 0;
-
-            @Override
-            public boolean hasNext() {
-                return iteratorCount < width * height;
-            }
-
-            @Override
-            public Byte next() {
-                int y = iteratorCount / width;
-                int x = iteratorCount % width;
-                // advance counter
-                iteratorCount += 1;
-
-                return data[y][x];
-            }
-        };
-    }
-
-    /**
-     * Performs the given action for each element of the {@code Iterable}
-     * until all elements have been processed or the action throws an
-     * exception.  Unless otherwise specified by the implementing class,
-     * actions are performed in the order of iteration (if an iteration order
-     * is specified).  Exceptions thrown by the action are relayed to the
-     * caller.
-     *
-     * @param action The action to be performed for each element
-     * @throws NullPointerException if the specified action is null
-     * @implSpec <p>The default implementation behaves as if:
-     * <pre>{@code
-     *     for (T t : this)
-     *         action.accept(t);
-     * }</pre>
-     * @since 1.8
-     */
-    @Override
-    public void forEach(Consumer action) {
-        for (Byte b : this) {
-            action.accept(b);
-        }
-    }
-
-    /**
-     * Creates a {@link java.util.Spliterator} over the elements described by this
-     * {@code Iterable}.
-     *
-     * @return a {@code Spliterator} over the elements described by this
-     * {@code Iterable}.
-     * @implSpec The default implementation creates an
-     * <em><a href="Spliterator.html#binding">early-binding</a></em>
-     * spliterator from the iterable's {@code Iterator}.  The spliterator
-     * inherits the <em>fail-fast</em> properties of the iterable's iterator.
-     * @implNote The default implementation should usually be overridden.  The
-     * spliterator returned by the default implementation has poor splitting
-     * capabilities, is unsized, and does not report any spliterator
-     * characteristics. Implementing classes can nearly always provide a
-     * better implementation.
-     * @since 1.8
-     */
-    @Override
-    public Spliterator spliterator() {
-        throw new UnsupportedOperationException();
-    }
-
-    int getTile(int x, int y) {
-        return uint8ToInt32(data[y][x]);
-    }
-
-    void setTile(int x, int y, byte tile) {
-        data[y][x] = tile;
-    }
-
-    private int uint8ToInt32(byte x) {
-        int ret;
-        if ((x & 0b1000_0000) != 0) {
-            ret = (x & 0b0111_1111) | (x & 0b1000_0000);
-        }
-        else {
-            ret = x;
-        }
-        return ret;
-    }
-}
-
diff --git a/src/com/Torvald/Terrarum/GameMap/MapLayer.kt b/src/com/Torvald/Terrarum/GameMap/MapLayer.kt
new file mode 100644
index 000000000..2c89c3942
--- /dev/null
+++ b/src/com/Torvald/Terrarum/GameMap/MapLayer.kt
@@ -0,0 +1,58 @@
+package com.Torvald.Terrarum.GameMap
+
+import java.io.Serializable
+import java.util.Spliterator
+import java.util.function.Consumer
+
+/**
+ * Created by minjaesong on 16-01-17.
+ */
+class MapLayer(var width: Int, var height: Int) : Iterable<Byte> {
+
+    internal var data: Array<ByteArray>
+
+    init {
+        data = Array(height) { ByteArray(width) }
+    }
+
+    /**
+     * Returns an iterator over elements of type `T`.
+
+     * @return an Iterator.
+     */
+    override fun iterator(): Iterator<Byte> {
+        return object : Iterator<Byte> {
+
+            private var iteratorCount = 0
+
+            override fun hasNext(): Boolean {
+                return iteratorCount < width * height
+            }
+
+            override fun next(): Byte {
+                val y = iteratorCount / width
+                val x = iteratorCount % width
+                // advance counter
+                iteratorCount += 1
+
+                return data[y][x]
+            }
+        }
+    }
+
+    internal fun getTile(x: Int, y: Int): Int {
+        return uint8ToInt32(data[y][x])
+    }
+
+    internal fun setTile(x: Int, y: Int, tile: Byte) {
+        data[y][x] = tile
+    }
+
+    private fun uint8ToInt32(x: Byte): Int = java.lang.Byte.toUnsignedInt(x)
+
+    companion object {
+
+        @Transient @JvmStatic val RANGE = 256
+    }
+}
+
diff --git a/src/com/Torvald/Terrarum/GameMap/MapPoint.java b/src/com/Torvald/Terrarum/GameMap/MapPoint.java
deleted file mode 100644
index 8b1a134dd..000000000
--- a/src/com/Torvald/Terrarum/GameMap/MapPoint.java
+++ /dev/null
@@ -1,41 +0,0 @@
-package com.Torvald.Terrarum.GameMap;
-
-import com.Torvald.Point.Point2f;
-
-import java.io.Serializable;
-
-
-public class MapPoint {
-	private Point2f startPoint;
-	private Point2f endPoint;
-	
-	public MapPoint(){
-		
-	}
-	
-	public MapPoint(Point2f p1, Point2f p2){
-		setPoint(p1, p2);
-	}
-	
-	public MapPoint(int x1, int y1, int x2, int y2){
-		setPoint(x1, y1, x2, y2);
-	}
-	
-	public void setPoint(Point2f p1, Point2f p2){
-		startPoint = p1;
-		endPoint = p2;
-	}
-	
-	public void setPoint(int x1, int y1, int x2, int y2){
-		startPoint = new Point2f(x1, y1);
-		endPoint = new Point2f(x2, y2);
-	}
-	
-	public Point2f getStartPoint(){
-		return startPoint;
-	}
-	
-	public Point2f getEndPoint(){
-		return endPoint;
-	}
-}
diff --git a/src/com/Torvald/Terrarum/GameMap/MapPoint.kt b/src/com/Torvald/Terrarum/GameMap/MapPoint.kt
new file mode 100644
index 000000000..a449e2370
--- /dev/null
+++ b/src/com/Torvald/Terrarum/GameMap/MapPoint.kt
@@ -0,0 +1,35 @@
+package com.Torvald.Terrarum.GameMap
+
+import com.Torvald.Point.Point2f
+
+import java.io.Serializable
+
+
+class MapPoint {
+    var startPoint: Point2f? = null
+        private set
+    var endPoint: Point2f? = null
+        private set
+
+    constructor() {
+
+    }
+
+    constructor(p1: Point2f, p2: Point2f) {
+        setPoint(p1, p2)
+    }
+
+    constructor(x1: Int, y1: Int, x2: Int, y2: Int) {
+        setPoint(x1, y1, x2, y2)
+    }
+
+    fun setPoint(p1: Point2f, p2: Point2f) {
+        startPoint = p1
+        endPoint = p2
+    }
+
+    fun setPoint(x1: Int, y1: Int, x2: Int, y2: Int) {
+        startPoint = Point2f(x1.toFloat(), y1.toFloat())
+        endPoint = Point2f(x2.toFloat(), y2.toFloat())
+    }
+}
diff --git a/src/com/Torvald/Terrarum/GameMap/PairedMapLayer.java b/src/com/Torvald/Terrarum/GameMap/PairedMapLayer.java
deleted file mode 100644
index 23e003d45..000000000
--- a/src/com/Torvald/Terrarum/GameMap/PairedMapLayer.java
+++ /dev/null
@@ -1,136 +0,0 @@
-package com.Torvald.Terrarum.GameMap;
-
-import java.io.Serializable;
-import java.util.Iterator;
-import java.util.Spliterator;
-import java.util.function.Consumer;
-
-/**
- * Created by minjaesong on 16-02-15.
- */
-public class PairedMapLayer implements Iterable<Byte> {
-
-    /**
-     * 0b_xxxx_yyyy, x for lower index, y for higher index
-     *
-     * e.g.
-     *
-     *   0110 1101 is interpreted as
-     *   6 for tile 0, 13 for tile 1.
-     */
-    byte[][] dataPair;
-
-    public int width;
-    public int height;
-
-    public static transient final int RANGE = 16;
-
-    public PairedMapLayer(int width, int height) {
-        this.width = width / 2;
-        this.height = height;
-
-        dataPair = new byte[height][width / 2];
-
-        for (int i = 0; i < height; i++) {
-            for (int j = 0; j < width / 2; j++) {
-                dataPair[i][j] = 0;
-            }
-        }
-    }
-
-    /**
-     * Returns an iterator over elements of type {@code T}.
-     * Note: this iterator will return combined damage, that is 0bxxxx_yyyy as whole.
-     *
-     * @return an Iterator.
-     */
-    @Override
-    public Iterator<Byte> iterator() {
-        return new Iterator<Byte>() {
-
-            private int iteratorCount = 0;
-
-            @Override
-            public boolean hasNext() {
-                return iteratorCount < width * height;
-            }
-
-            @Override
-            public Byte next() {
-                int y = iteratorCount / width;
-                int x = iteratorCount % width;
-                // advance counter
-                iteratorCount += 1;
-
-                return dataPair[y][x];
-            }
-        };
-    }
-
-    /**
-     * Performs the given action for each element of the {@code Iterable}
-     * until all elements have been processed or the action throws an
-     * exception.  Unless otherwise specified by the implementing class,
-     * actions are performed in the order of iteration (if an iteration order
-     * is specified).  Exceptions thrown by the action are relayed to the
-     * caller.
-     *
-     * Note: this iterator will return combined damage, that is 0bxxxx_yyyy as whole.
-     *
-     * @param action The action to be performed for each element
-     * @throws NullPointerException if the specified action is null
-     * @implSpec <p>The default implementation behaves as if:
-     * <pre>{@code
-     *     for (T t : this)
-     *         action.accept(t);
-     * }</pre>
-     * @since 1.8
-     */
-    @Override
-    public void forEach(Consumer action) {
-        for (Byte b : this) {
-            action.accept(b);
-        }
-    }
-
-    /**
-     * Creates a {@link Spliterator} over the elements described by this
-     * {@code Iterable}.
-     *
-     * @return a {@code Spliterator} over the elements described by this
-     * {@code Iterable}.
-     * @implSpec The default implementation creates an
-     * <em><a href="Spliterator.html#binding">early-binding</a></em>
-     * spliterator from the iterable's {@code Iterator}.  The spliterator
-     * inherits the <em>fail-fast</em> properties of the iterable's iterator.
-     * @implNote The default implementation should usually be overridden.  The
-     * spliterator returned by the default implementation has poor splitting
-     * capabilities, is unsized, and does not report any spliterator
-     * characteristics. Implementing classes can nearly always provide a
-     * better implementation.
-     * @since 1.8
-     */
-    @Override
-    public Spliterator<Byte> spliterator() {
-        throw new UnsupportedOperationException();
-    }
-
-    int getData(int x, int y) {
-        if ((x & 0x1) == 0)
-            // higher four bits for i = 0, 2, 4, ...
-            return (dataPair[y][x / 2] & 0xF0) >>> 4;
-        else
-            // lower four bits for i = 1, 3, 5, ...
-            return dataPair[y][x / 2] & 0x0F;
-    }
-
-    void setData(int x, int y, int data) {
-        if (data < 0 || data >= 16) throw new IllegalArgumentException("[PairedMapLayer] " + data + ": invalid data value.");
-        if ((x & 0x1) == 0)
-            // higher four bits for i = 0, 2, 4, ...
-            dataPair[y][x / 2] = (byte) (dataPair[y][x / 2] & 0x0F | (data & 0xF) << 4);
-        else
-            // lower four bits for i = 1, 3, 5, ...
-            dataPair[y][x / 2] = (byte) (dataPair[y][x / 2] & 0xF0 | (data & 0xF));
-    }
-}
diff --git a/src/com/Torvald/Terrarum/GameMap/PairedMapLayer.kt b/src/com/Torvald/Terrarum/GameMap/PairedMapLayer.kt
new file mode 100644
index 000000000..a4fd75fa0
--- /dev/null
+++ b/src/com/Torvald/Terrarum/GameMap/PairedMapLayer.kt
@@ -0,0 +1,82 @@
+package com.Torvald.Terrarum.GameMap
+
+import java.io.Serializable
+import java.util.Spliterator
+import java.util.function.Consumer
+
+/**
+ * Created by minjaesong on 16-02-15.
+ */
+class PairedMapLayer(width: Int, var height: Int) : Iterable<Byte> {
+
+    /**
+     * 0b_xxxx_yyyy, x for lower index, y for higher index
+
+     * e.g.
+
+     * 0110 1101 is interpreted as
+     * 6 for tile 0, 13 for tile 1.
+     */
+    internal var dataPair: Array<ByteArray>
+
+    var width: Int = 0
+
+    init {
+        this.width = width / 2
+
+        dataPair = Array(height) { ByteArray(width / 2) }
+    }
+
+    /**
+     * Returns an iterator over elements of type `T`.
+     * Note: this iterator will return combined damage, that is 0bxxxx_yyyy as whole.
+
+     * @return an Iterator.
+     */
+    override fun iterator(): Iterator<Byte> {
+        return object : Iterator<Byte> {
+
+            private var iteratorCount = 0
+
+            override fun hasNext(): Boolean {
+                return iteratorCount < width * height
+            }
+
+            override fun next(): Byte {
+                val y = iteratorCount / width
+                val x = iteratorCount % width
+                // advance counter
+                iteratorCount += 1
+
+                return dataPair[y][x]
+            }
+        }
+    }
+
+    internal fun getData(x: Int, y: Int): Int {
+        if (x and 0x1 == 0)
+        // higher four bits for i = 0, 2, 4, ...
+            return (java.lang.Byte.toUnsignedInt(dataPair[y][x / 2]) and 0xF0) ushr 4
+        else
+        // lower four bits for i = 1, 3, 5, ...
+            return java.lang.Byte.toUnsignedInt(dataPair[y][x / 2]) and 0x0F
+    }
+
+    internal fun setData(x: Int, y: Int, data: Int) {
+        if (data < 0 || data >= 16) throw IllegalArgumentException("[PairedMapLayer] $data: invalid data value.")
+        if (x and 0x1 == 0)
+        // higher four bits for i = 0, 2, 4, ...
+            dataPair[y][x / 2] =
+                    (java.lang.Byte.toUnsignedInt(dataPair[y][x / 2]) and 0x0F
+                            or (data and 0xF shl 4)).toByte()
+        else
+        // lower four bits for i = 1, 3, 5, ...
+            dataPair[y][x / 2] = (java.lang.Byte.toUnsignedInt(dataPair[y][x / 2]) and 0xF0
+                    or (data and 0xF)).toByte()
+    }
+
+    companion object {
+
+        @Transient val RANGE = 16
+    }
+}
diff --git a/src/com/Torvald/Terrarum/LangPack/Lang.java b/src/com/Torvald/Terrarum/LangPack/Lang.java
deleted file mode 100644
index 442671266..000000000
--- a/src/com/Torvald/Terrarum/LangPack/Lang.java
+++ /dev/null
@@ -1,179 +0,0 @@
-package com.Torvald.Terrarum.LangPack;
-
-import com.Torvald.CSVFetcher;
-import com.Torvald.ImageFont.GameFontWhite;
-import com.Torvald.Terrarum.Terrarum;
-import org.apache.commons.csv.CSVRecord;
-import org.newdawn.slick.SlickException;
-
-import java.io.*;
-import java.nio.charset.StandardCharsets;
-import java.util.Arrays;
-import java.util.Hashtable;
-import java.util.List;
-import java.util.Properties;
-
-/**
- * Created by minjaesong on 16-01-22.
- */
-public class Lang {
-
-    private static final String CSV_COLUMN_FIRST = "STRING_ID";
-    /**
-     * Get record by its STRING_ID
-     */
-    private static Hashtable<String, CSVRecord> lang;
-    private static final String FALLBACK_LANG_CODE = "enUS";
-
-    private static final int HANGUL_SYL_START = 0xAC00;
-
-    private static final String PATH_TO_CSV = "./res/locales/";
-    private static final String CSV_MAIN = "polyglot.csv";
-    private static final String NAMESET_PREFIX = "nameset_";
-
-    private static final int[] HANGUL_POST_INDEX_ALPH = { // 0: 는, 가, ...  1: 은, 이, ...
-            0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-    };
-    private static final int[] HANGUL_POST_RO_INDEX_ALPH = { // 0: 로  1: 으로
-            0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-    };
-
-    private static String[] ENGLISH_WORD_NORMAL_PLURAL = {
-            "photo"
-    };
-
-    private static String[] FRENCH_WORD_NORMAL_PLURAL = {
-              "bal"
-            , "banal"
-            , "fatal"
-            , "final"
-    };
-
-    public Lang() throws IOException {
-        lang = new Hashtable<>();
-
-        List<CSVRecord> langPackCSV = CSVFetcher.INSTANCE.readCSV(PATH_TO_CSV + CSV_MAIN);
-
-        File file = new File(PATH_TO_CSV);
-        FilenameFilter filter = new FilenameFilter() {
-            @Override
-            public boolean accept(File dir, String name) {
-                return name.contains(".csv") && !name.contains(CSV_MAIN) && !name.contains(NAMESET_PREFIX);
-            }
-        };
-        for (String csvfilename : file.list(filter)) {
-            List<CSVRecord> csv = CSVFetcher.INSTANCE.readCSV(PATH_TO_CSV + csvfilename);
-            csv.forEach(langPackCSV::add);
-        }
-
-        // Fill lang table
-        langPackCSV.forEach(this::appendToLangByStringID);
-
-
-        Arrays.sort(ENGLISH_WORD_NORMAL_PLURAL);
-        Arrays.sort(FRENCH_WORD_NORMAL_PLURAL);
-
-        try { ((GameFontWhite)Terrarum.gameFontWhite).reloadUnihan(); }
-        catch (SlickException e) {}
-    }
-
-    private void appendToLangByStringID(CSVRecord record) {
-        lang.put(record.get(CSV_COLUMN_FIRST), record);
-    }
-
-    public static CSVRecord getRecord(String key) {
-        CSVRecord record = lang.get(key);
-        if (record == null) {
-            System.out.println("[Lang] No such record.");
-            throw new NullPointerException();
-        }
-        return record;
-    }
-
-    public static String get(String key) {
-        String value = null;
-        try { value = lang.get(key).get(Terrarum.Companion.getGameLocale()); }
-        catch (IllegalArgumentException e) { value = key; }
-        return value;
-    }
-
-    public static String pluraliseLang(String key, int count) {
-        return (count > 1) ? get(key + "_PLURAL") : get(key);
-    }
-
-    public static String pluralise(String word, int count) {
-        if (count < 2) return word;
-
-        switch (Terrarum.Companion.getGameLocale()) {
-            case ("fr"):
-                if (Arrays.binarySearch(FRENCH_WORD_NORMAL_PLURAL, word) >= 0) {
-                    return word + "s";
-                }
-                if (word.endsWith("al") || word.endsWith("au") || word.endsWith("eu") || word
-                        .endsWith("eau")) {
-                    return word.substring(0, word.length() - 2) + "ux";
-                }
-                else if (word.endsWith("ail")) {
-                    return word.substring(0, word.length() - 3) + "ux";
-                }
-                else {
-                    return word + "s";
-                }
-            case ("en"): default:
-                if (Arrays.binarySearch(ENGLISH_WORD_NORMAL_PLURAL, word) >= 0) {
-                    return word + "s";
-                }
-                else if (word.endsWith("f")) { // f -> ves
-                    return word.substring(0, word.length() - 2) + "ves";
-                }
-                else if (word.endsWith("o") || word.endsWith("z")) { // o -> oes
-                    return word + "es";
-                }
-                else {
-                    return word + "s";
-                }
-        }
-    }
-
-    public static String postEunNeun(String word) {
-        char lastChar = getLastChar(word);
-
-        if (isHangul(lastChar)) {
-            int index = lastChar - HANGUL_SYL_START;
-            return (index % 28 == 0) ? word + "는" : word + "은";
-        }
-        else if ((lastChar >= 'A' && lastChar <= 'Z')
-                || (lastChar >= 'a' && lastChar <= 'z')) {
-            int index = (lastChar - 0x41) % 0x20;
-            return (HANGUL_POST_INDEX_ALPH[index] == 0) ? word + "는" : word + "은";
-        }
-        else {
-            return "은(는)";
-        }
-    }
-
-    public static String postIiGa(String word) {
-        char lastChar = getLastChar(word);
-
-        if (isHangul(lastChar)) {
-            int index = lastChar - HANGUL_SYL_START;
-            return (index % 28 == 0) ? word + "가" : word + "이";
-        }
-        else if ((lastChar >= 'A' && lastChar <= 'Z')
-                || (lastChar >= 'a' && lastChar <= 'z')) {
-            int index = (lastChar - 0x41) % 0x20;
-            return (HANGUL_POST_INDEX_ALPH[index] == 0) ? word + "가" : word + "이";
-        }
-        else {
-            return "이(가)";
-        }
-    }
-
-    private static boolean isHangul(char c) {
-        return (c >= 0xAC00 && c <= 0xD7A3);
-    }
-
-    private static char getLastChar(String s) {
-        return s.charAt(s.length() - 1);
-    }
-}
diff --git a/src/com/Torvald/Terrarum/LangPack/Lang.kt b/src/com/Torvald/Terrarum/LangPack/Lang.kt
new file mode 100644
index 000000000..965d925b6
--- /dev/null
+++ b/src/com/Torvald/Terrarum/LangPack/Lang.kt
@@ -0,0 +1,190 @@
+package com.Torvald.Terrarum.LangPack
+
+import com.Torvald.CSVFetcher
+import com.Torvald.ImageFont.GameFontWhite
+import com.Torvald.Terrarum.Terrarum
+import org.apache.commons.csv.CSVRecord
+import org.newdawn.slick.SlickException
+
+import java.io.*
+import java.util.*
+
+/**
+ * Created by minjaesong on 16-01-22.
+ */
+object Lang {
+
+    private val CSV_COLUMN_FIRST = "STRING_ID"
+    /**
+     * Get record by its STRING_ID
+     */
+    private var lang: HashMap<String, CSVRecord>
+    private val FALLBACK_LANG_CODE = "enUS"
+
+    private val HANGUL_SYL_START = 0xAC00
+
+    private val PATH_TO_CSV = "./res/locales/"
+    private val CSV_MAIN = "polyglot.csv"
+    private val NAMESET_PREFIX = "nameset_"
+
+    private val HANGUL_POST_INDEX_ALPH = intArrayOf(// 0: 는, 가, ...  1: 은, 이, ...
+            0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
+    private val HANGUL_POST_RO_INDEX_ALPH = intArrayOf(// 0: 로  1: 으로
+            0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
+
+    private val ENGLISH_WORD_NORMAL_PLURAL = arrayOf("photo")
+
+    private val FRENCH_WORD_NORMAL_PLURAL = arrayOf("bal", "banal", "fatal", "final")
+
+    init {
+        lang = HashMap<String, CSVRecord>()
+
+        // read polyglot.csv first and use this list as a pivot
+        var langPackCSV: List<CSVRecord> = CSVFetcher.readCSV(PATH_TO_CSV + CSV_MAIN)
+
+        // append CSV records to the main langpack
+        val file = File(PATH_TO_CSV)
+        val filter = FilenameFilter { dir, name -> name.contains(".csv") && !name.contains(NAMESET_PREFIX) }
+        for (csvfilename in file.list(filter)) {
+            val csv = CSVFetcher.readCSV(PATH_TO_CSV + csvfilename)
+            //csv.forEach({ langPackCSV. })
+            csv.forEach { it -> lang.put(it.get(CSV_COLUMN_FIRST), it) }
+        }
+
+        //        lang.put(record.get(CSV_COLUMN_FIRST), record)
+
+        // Fill lang table
+        // langPackCSV.forEach({ this.appendToLangByStringID(it) })
+
+
+        Arrays.sort(ENGLISH_WORD_NORMAL_PLURAL)
+        Arrays.sort(FRENCH_WORD_NORMAL_PLURAL)
+
+        try {
+            (Terrarum.gameFontWhite as GameFontWhite).reloadUnihan()
+        }
+        catch (e: SlickException) {
+        }
+
+    }
+
+    fun getRecord(key: String): CSVRecord {
+        val record = lang[key]
+        if (record == null) {
+            println("[Lang] No such record: $key")
+            throw NullPointerException()
+        }
+        return record
+    }
+
+    operator fun get(key: String): String {
+        var value: String
+        try {
+            value = lang[key]!!.get(Terrarum.gameLocale)
+        }
+        catch (e: IllegalArgumentException) {
+            value = key
+        }
+
+        return value
+    }
+
+    fun pluraliseLang(key: String, count: Int): String {
+        return if (count > 1) get(key + "_PLURAL") else get(key)
+    }
+
+    fun pluralise(word: String, count: Int): String {
+        if (count < 2) return word
+
+        when (Terrarum.gameLocale) {
+            "fr" -> {
+                if (Arrays.binarySearch(FRENCH_WORD_NORMAL_PLURAL, word) >= 0) {
+                    return word + "s"
+                }
+                if (word.endsWith("al") || word.endsWith("au") || word.endsWith("eu") || word.endsWith("eau")) {
+                    return word.substring(0, word.length - 2) + "ux"
+                }
+                else if (word.endsWith("ail")) {
+                    return word.substring(0, word.length - 3) + "ux"
+                }
+                else {
+                    return word + "s"
+                }
+            }
+            "en" -> {
+                if (Arrays.binarySearch(ENGLISH_WORD_NORMAL_PLURAL, word) >= 0) {
+                    return word + "s"
+                }
+                else if (word.endsWith("f")) {
+                    // f -> ves
+                    return word.substring(0, word.length - 2) + "ves"
+                }
+                else if (word.endsWith("o") || word.endsWith("z")) {
+                    // o -> oes
+                    return word + "es"
+                }
+                else {
+                    return word + "s"
+                }
+            }
+            else -> {
+                if (Arrays.binarySearch(ENGLISH_WORD_NORMAL_PLURAL, word) >= 0) {
+                    return word + "s"
+                }
+                else if (word.endsWith("f")) {
+                    return word.substring(0, word.length - 2) + "ves"
+                }
+                else if (word.endsWith("o") || word.endsWith("z")) {
+                    return word + "es"
+                }
+                else {
+                    return word + "s"
+                }
+            }
+        }
+    }
+
+    fun postEunNeun(word: String): String {
+        val lastChar = getLastChar(word)
+
+        if (isHangul(lastChar)) {
+            val index = lastChar.toInt() - HANGUL_SYL_START
+            return if (index % 28 == 0) word + "는" else word + "은"
+        }
+        else if (lastChar >= 'A' && lastChar <= 'Z' || lastChar >= 'a' && lastChar <= 'z') {
+            val index = (lastChar.toInt() - 0x41) % 0x20
+            return if (HANGUL_POST_INDEX_ALPH[index] == 0) word + "는" else word + "은"
+        }
+        else {
+            return "은(는)"
+        }
+    }
+
+    fun postIiGa(word: String): String {
+        val lastChar = getLastChar(word)
+
+        if (isHangul(lastChar)) {
+            val index = lastChar.toInt() - HANGUL_SYL_START
+            return if (index % 28 == 0) word + "가" else word + "이"
+        }
+        else if (lastChar >= 'A' && lastChar <= 'Z' || lastChar >= 'a' && lastChar <= 'z') {
+            val index = (lastChar.toInt() - 0x41) % 0x20
+            return if (HANGUL_POST_INDEX_ALPH[index] == 0) word + "가" else word + "이"
+        }
+        else {
+            return "이(가)"
+        }
+    }
+
+    private fun isHangul(c: Char): Boolean {
+        return c.toInt() >= 0xAC00 && c.toInt() <= 0xD7A3
+    }
+
+    private fun getLastChar(s: String): Char {
+        return s[s.length - 1]
+    }
+
+    private fun appendToLangByStringID(record: CSVRecord) {
+        lang.put(record.get(CSV_COLUMN_FIRST), record)
+    }
+}
diff --git a/src/com/Torvald/Terrarum/MapDrawer/LightmapRenderer.kt b/src/com/Torvald/Terrarum/MapDrawer/LightmapRenderer.kt
index 01c1771b3..b27de7e43 100644
--- a/src/com/Torvald/Terrarum/MapDrawer/LightmapRenderer.kt
+++ b/src/com/Torvald/Terrarum/MapDrawer/LightmapRenderer.kt
@@ -96,11 +96,11 @@ object LightmapRenderer {
         }
 
 
-        val for_y_start = div16(MapCamera.getCameraY()) - 1 // fix for premature lightmap rendering
-        val for_x_start = div16(MapCamera.getCameraX()) - 1 // on topmost/leftmost side
+        val for_x_start = div16(MapCamera.cameraX) - 1 // fix for premature lightmap rendering
+        val for_y_start = div16(MapCamera.cameraY) - 1 // on topmost/leftmost side
 
-        val for_y_end = clampHTile(for_y_start + div16(MapCamera.getRenderHeight()) + 2) + 1 // same fix as above
         val for_x_end = clampWTile(for_x_start + div16(MapCamera.getRenderWidth()) + 2) + 1
+        val for_y_end = clampHTile(for_y_start + div16(MapCamera.getRenderHeight()) + 2) + 1 // same fix as above
 
         /**
          * Updating order:
diff --git a/src/com/Torvald/Terrarum/MapDrawer/MapCamera.kt b/src/com/Torvald/Terrarum/MapDrawer/MapCamera.kt
index aa43771e9..88282bf13 100644
--- a/src/com/Torvald/Terrarum/MapDrawer/MapCamera.kt
+++ b/src/com/Torvald/Terrarum/MapDrawer/MapCamera.kt
@@ -19,8 +19,10 @@ import java.util.*
 object MapCamera {
     private val map: GameMap = Terrarum.game.map;
 
-    internal var cameraX = 0
-    internal var cameraY = 0
+    var cameraX = 0
+        private set
+    var cameraY = 0
+        private set
 
     private val TSIZE = MapDrawer.TILE_SIZE
 
@@ -122,6 +124,7 @@ object MapCamera {
             , TileNameCode.ORE_ILMENITE
             , TileNameCode.ORE_AURICHALCUM
 
+            , TileNameCode.WATER
             , TileNameCode.WATER_1
             , TileNameCode.WATER_2
             , TileNameCode.WATER_3
@@ -153,7 +156,6 @@ object MapCamera {
             , TileNameCode.LAVA_13
             , TileNameCode.LAVA_14
             , TileNameCode.LAVA_15
-            , TileNameCode.LAVA
     )
 
     /**
@@ -444,18 +446,9 @@ object MapCamera {
         }
     }
 
-    @JvmStatic
-    fun div16(x: Int): Int {
-        return x and 0x7FFFFFFF shr 4
-    }
-
-    fun mod16(x: Int): Int {
-        return x and 15
-    }
-
-    fun quantise16(x: Int): Int {
-        return x and 0xFFFFFFF0.toInt()
-    }
+    fun div16(x: Int): Int = x and 0x7FFFFFFF shr 4
+    fun mod16(x: Int): Int = x and 15
+    fun quantise16(x: Int): Int = x and 0xFFFFFFF0.toInt()
 
     fun clampW(x: Int): Int {
         if (x < 0) {
@@ -477,7 +470,6 @@ object MapCamera {
         }
     }
 
-    @JvmStatic
     fun clampWTile(x: Int): Int {
         if (x < 0) {
             return 0
@@ -488,7 +480,6 @@ object MapCamera {
         }
     }
 
-    @JvmStatic
     fun clampHTile(x: Int): Int {
         if (x < 0) {
             return 0
@@ -499,55 +490,21 @@ object MapCamera {
         }
     }
 
-    @JvmStatic
-    fun getRenderWidth(): Int {
-        return renderWidth
-    }
+    fun getRenderWidth(): Int = renderWidth
+    fun getRenderHeight(): Int = renderHeight
 
-    @JvmStatic
-    fun getRenderHeight(): Int {
-        return renderHeight
-    }
+    fun getRenderStartX(): Int = div16(cameraX)
+    fun getRenderStartY(): Int = div16(cameraY)
 
-    @JvmStatic
-    fun getRenderStartX(): Int {
-        return div16(cameraX)
-    }
+    fun getRenderEndX(): Int = clampWTile(getRenderStartX() + div16(renderWidth) + 2)
+    fun getRenderEndY(): Int = clampHTile(getRenderStartY() + div16(renderHeight) + 2)
 
-    @JvmStatic
-    fun getRenderStartY(): Int {
-        return div16(cameraY)
-    }
+    private fun isConnectSelf(b: Int): Boolean = TILES_CONNECT_SELF.contains(b)
+    private fun isConnectMutual(b: Int): Boolean = TILES_CONNECT_MUTUAL.contains(b)
+    private fun isWallSticker(b: Int): Boolean = TILES_WALL_STICKER.contains(b)
+    private fun isPlatform(b: Int): Boolean = TILES_WALL_STICKER_CONNECT_SELF.contains(b)
 
-    @JvmStatic
-    fun getRenderEndX(): Int {
-        return clampWTile(getRenderStartX() + div16(renderWidth) + 2)
-    }
-
-    @JvmStatic
-    fun getRenderEndY(): Int {
-        return clampHTile(getRenderStartY() + div16(renderHeight) + 2)
-    }
-
-    private fun isConnectSelf(b: Int): Boolean {
-        return Arrays.asList(*TILES_CONNECT_SELF).contains(b)
-    }
-
-    private fun isConnectMutual(b: Int): Boolean {
-        return Arrays.asList(*TILES_CONNECT_MUTUAL).contains(b)
-    }
-
-    private fun isWallSticker(b: Int): Boolean {
-        return Arrays.asList(*TILES_WALL_STICKER).contains(b)
-    }
-
-    private fun isPlatform(b: Int): Boolean {
-        return Arrays.asList(*TILES_WALL_STICKER_CONNECT_SELF).contains(b)
-    }
-
-    private fun isBlendMul(b: Int): Boolean {
-        return Arrays.asList(*TILES_BLEND_MUL).contains(b)
-    }
+    private fun isBlendMul(b: Int): Boolean = TILES_BLEND_MUL.contains(b)
 
     private fun setBlendModeMul() {
         GL11.glEnable(GL11.GL_BLEND)
@@ -558,14 +515,4 @@ object MapCamera {
         GL11.glDisable(GL11.GL_BLEND)
         Terrarum.appgc.graphics.setDrawMode(Graphics.MODE_NORMAL)
     }
-
-    @JvmStatic
-    fun getCameraX(): Int {
-        return cameraX
-    }
-
-    @JvmStatic
-    fun getCameraY(): Int {
-        return cameraY
-    }
 }
\ No newline at end of file
diff --git a/src/com/Torvald/Terrarum/MapDrawer/MapDrawer.kt b/src/com/Torvald/Terrarum/MapDrawer/MapDrawer.kt
index 878c680cb..475fd26dc 100644
--- a/src/com/Torvald/Terrarum/MapDrawer/MapDrawer.kt
+++ b/src/com/Torvald/Terrarum/MapDrawer/MapDrawer.kt
@@ -54,7 +54,12 @@ object MapDrawer {
 
         g.color = getColourFromMap(colTemp)
         //g.color = getColourFromMap(3022)
-        g.fillRect(MapCamera.getCameraX() * zoom, MapCamera.getCameraY() * zoom, Terrarum.WIDTH * if (zoom < 1) 1f / zoom else zoom, Terrarum.HEIGHT * if (zoom < 1) 1f / zoom else zoom)
+        g.fillRect(
+                MapCamera.cameraX * zoom,
+                MapCamera.cameraY * zoom,
+                Terrarum.WIDTH * if (zoom < 1) 1f / zoom else zoom,
+                Terrarum.HEIGHT * if (zoom < 1) 1f / zoom else zoom
+        )
     }
 
     /**
diff --git a/src/com/Torvald/Terrarum/Terrarum b/src/com/Torvald/Terrarum/Terrarum
deleted file mode 100644
index 45be528a9..000000000
--- a/src/com/Torvald/Terrarum/Terrarum
+++ /dev/null
@@ -1,305 +0,0 @@
-package com.Torvald.Terrarum;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import com.Torvald.ImageFont.GameFontWhite;
-import com.Torvald.JsonFetcher;
-import com.Torvald.JsonWriter;
-import com.Torvald.Terrarum.LangPack.Lang;
-import com.google.gson.JsonObject;
-import org.lwjgl.input.Controllers;
-import org.newdawn.slick.*;
-import org.newdawn.slick.state.StateBasedGame;
-
-/**
- * Created by minjaesong on 15-12-30.
- */
-public class Terrarum extends StateBasedGame {
-
-    /**
-     * To be used with physics simulator
-     */
-    public static final int TARGET_FPS = 50;
-
-    /**
-     * To be used with render, to achieve smooth frame drawing
-     *
-     * TARGET_INTERNAL_FPS > TARGET_FPS for smooth frame drawing
-     *
-     * Must choose a value so that (1000 / VAL) is still integer
-     */
-    public static final int TARGET_INTERNAL_FPS = 100;
-
-    public static AppGameContainer appgc;
-
-    public static final int WIDTH = 1060;
-    public static final int HEIGHT = 742; // IMAX ratio
-    public static boolean VSYNC = true;
-    public static final int VSYNC_TRIGGER_THRESHOLD = 56;
-
-    public static Game game;
-    public static GameConfig gameConfig;
-
-    public static String OSName;
-    public static String OSVersion;
-    public static String OperationSystem;
-    public static String defaultDir;
-    public static String defaultSaveDir;
-
-    public static String gameLocale = ""; // locale override
-
-    public static Font gameFontWhite;
-
-    public static final int SCENE_ID_HOME = 1;
-    public static final int SCENE_ID_GAME = 3;
-
-    public static boolean hasController = false;
-    public static final float CONTROLLER_DEADZONE = 0.1f;
-
-    private static String configDir;
-
-    public Terrarum(String gamename) throws SlickException {
-        super(gamename);
-
-        gameConfig = new GameConfig();
-
-        getDefaultDirectory();
-        createDirs();
-
-        boolean readFromDisk = readConfigJson();
-        if (!readFromDisk) readConfigJson();
-
-        // get locale from config
-        gameLocale = gameConfig.getAsString("language");
-
-        // if game locale were not set, use system locale
-        if (gameLocale.length() < 4)
-            gameLocale = getSysLang();
-
-        System.out.println("[Terrarum] Locale: " + gameLocale);
-    }
-
-    @Override
-    public void initStatesList(GameContainer gc) throws SlickException {
-        gameFontWhite = new GameFontWhite();
-
-        try { new Lang(); }
-        catch (IOException e) { e.printStackTrace(); }
-
-        hasController = (gc.getInput().getControllerCount() > 0);
-        if (hasController) {
-            for (int c = 0; c < Controllers.getController(0).getAxisCount(); c++) {
-                Controllers.getController(0).setDeadZone(c, CONTROLLER_DEADZONE);
-            }
-        }
-
-        appgc.getInput().enableKeyRepeat();
-
-        game = new Game();
-        addState(game);
-    }
-
-    public static void main(String[] args)
-    {
-        try
-        {
-            appgc = new AppGameContainer(new Terrarum("Terrarum"));
-            appgc.setDisplayMode(WIDTH, HEIGHT, false);
-
-            appgc.setTargetFrameRate(TARGET_INTERNAL_FPS);
-            appgc.setVSync(VSYNC);
-            appgc.setMaximumLogicUpdateInterval(1000 / TARGET_INTERNAL_FPS);
-            appgc.setMinimumLogicUpdateInterval(1000 / TARGET_INTERNAL_FPS - 1);
-
-            appgc.setShowFPS(false);
-            appgc.setUpdateOnlyWhenVisible(false);
-
-            appgc.start();
-        }
-        catch (SlickException ex)
-        {
-            Logger.getLogger(Terrarum.class.getName()).log(Level.SEVERE, null, ex);
-        }
-    }
-
-    private static void getDefaultDirectory(){
-        OSName = System.getProperty("os.name");
-        OSVersion = System.getProperty("os.version");
-
-        String OS = System.getProperty("os.name").toUpperCase();
-        if (OS.contains("WIN")){
-            OperationSystem = "WINDOWS";
-            defaultDir = System.getenv("APPDATA") + "/Terrarum";
-        }
-        else if (OS.contains("OS X")){
-            OperationSystem = "OSX";
-            defaultDir = System.getProperty("user.home") + "/Library/Application "
-                    + "Support" + "/Terrarum";
-        }
-        else if (OS.contains("NUX") || OS.contains("NIX")){
-            OperationSystem = "LINUX";
-            defaultDir = System.getProperty("user.home") + "/.terrarum";
-        }
-        else if (OS.contains("SUNOS")){
-            OperationSystem = "SOLARIS";
-            defaultDir = System.getProperty("user.home") + "/.terrarum";
-        }
-        else{
-            OperationSystem = "UNKNOWN";
-            defaultDir = System.getProperty("user.home") + "/.terrarum";
-        }
-
-        defaultSaveDir = defaultDir + "/Saves";
-        configDir = defaultDir + "/config.json";
-    }
-
-    private static void createDirs(){
-        File[] dirs = {
-                new File(defaultSaveDir),
-        };
-
-        for (File d : dirs){
-            if (!d.exists()){
-                d.mkdirs();
-            }
-        }
-    }
-
-    private static void createConfigJson() throws IOException {
-        File configFile = new File(configDir);
-
-        if (!configFile.exists() || configFile.length() == 0) {
-            JsonWriter.writeToFile(DefaultConfig.fetch(), configDir);
-        }
-    }
-
-    private static boolean readConfigJson() {
-        try {
-            // read from disk and build config from it
-            JsonObject jsonObject = JsonFetcher.readJson(configDir);
-
-            // make config
-            jsonObject.entrySet().forEach(
-                    entry -> gameConfig.set(entry.getKey(), entry.getValue())
-            );
-
-            return true;
-        }
-        catch (IOException e) {
-            // write default config to game dir. Call this method again to read config from it.
-            try {
-                createConfigJson();
-            }
-            catch (IOException e1) {
-                e.printStackTrace();
-            }
-
-            return false;
-        }
-    }
-
-    public static String getSysLang() {
-        String lan = System.getProperty("user.language");
-        String country = System.getProperty("user.country");
-
-        // exception handling
-        if      (lan.equals("en")) country = "US";
-        else if (lan.equals("fr")) country = "FR";
-        else if (lan.equals("de")) country = "DE";
-        else if (lan.equals("ko")) country = "KR";
-
-        return lan + country;
-    }
-
-
-    /**
-     * Return config from config set. If the config does not exist, default value will be returned.
-     * @param key
-     * @return Config from config set or default config if it does not exist.
-     * @throws NullPointerException if the specified config simply does not exist.
-     */
-    public static int getConfigInt(String key) {
-        int cfg = 0;
-        try {
-            cfg = gameConfig.getAsInt(key);
-        }
-        catch (NullPointerException e) {
-            try {
-                cfg = DefaultConfig.fetch().get(key).getAsInt();
-            }
-            catch (NullPointerException e1) {
-                e.printStackTrace();
-            }
-        }
-        return cfg;
-    }
-
-    /**
-     * Return config from config set. If the config does not exist, default value will be returned.
-     * @param key
-     * @return Config from config set or default config if it does not exist.
-     * @throws NullPointerException if the specified config simply does not exist.
-     */
-    public static float getConfigFloat(String key) {
-        float cfg = 0;
-        try {
-            cfg = gameConfig.getAsFloat(key);
-        }
-        catch (NullPointerException e) {
-            try {
-                cfg = DefaultConfig.fetch().get(key).getAsFloat();
-            }
-            catch (NullPointerException e1) {
-                e.printStackTrace();
-            }
-        }
-        return cfg;
-    }
-
-    /**
-     * Return config from config set. If the config does not exist, default value will be returned.
-     * @param key
-     * @return Config from config set or default config if it does not exist.
-     * @throws NullPointerException if the specified config simply does not exist.
-     */
-    public static String getConfigString(String key) {
-        String cfg = "";
-        try {
-            cfg = gameConfig.getAsString(key);
-        }
-        catch (NullPointerException e) {
-            try {
-                cfg = DefaultConfig.fetch().get(key).getAsString();
-            }
-            catch (NullPointerException e1) {
-                e.printStackTrace();
-            }
-        }
-        return cfg;
-    }
-
-    /**
-     * Return config from config set. If the config does not exist, default value will be returned.
-     * @param key
-     * @return Config from config set or default config if it does not exist.
-     * @throws NullPointerException if the specified config simply does not exist.
-     */
-    public static boolean getConfigBoolean(String key) {
-        boolean cfg = false;
-        try {
-            cfg = gameConfig.getAsBoolean(key);
-        }
-        catch (NullPointerException e) {
-            try {
-                cfg = DefaultConfig.fetch().get(key).getAsBoolean();
-            }
-            catch (NullPointerException e1) {
-                e.printStackTrace();
-            }
-        }
-        return cfg;
-    }
-}
diff --git a/src/com/Torvald/Terrarum/Terrarum.kt b/src/com/Torvald/Terrarum/Terrarum.kt
index 36bde460e..2466ecb8b 100644
--- a/src/com/Torvald/Terrarum/Terrarum.kt
+++ b/src/com/Torvald/Terrarum/Terrarum.kt
@@ -46,13 +46,6 @@ constructor(gamename: String) : StateBasedGame(gamename) {
     override fun initStatesList(gc: GameContainer) {
         gameFontWhite = GameFontWhite()
 
-        try {
-            Lang()
-        }
-        catch (e: IOException) {
-            e.printStackTrace()
-        }
-
         hasController = gc.input.controllerCount > 0
         if (hasController) {
             for (c in 0..Controllers.getController(0).axisCount - 1) {
diff --git a/src/com/Torvald/Terrarum/TileProperties/tileprop.csv b/src/com/Torvald/Terrarum/TileProperties/tileprop.csv
index 221d2f08e..2d29ad39b 100644
--- a/src/com/Torvald/Terrarum/TileProperties/tileprop.csv
+++ b/src/com/Torvald/Terrarum/TileProperties/tileprop.csv
@@ -41,7 +41,7 @@
  "10";  "2";"TILE_PLATFORM_EBONY"      ; "394758";       "1"; "N/A";    "0";   "0";    "0";   "0";       "0";  "10";   "2";   "0";"16"
  "10";  "3";"TILE_PLATFORM_BIRCH"      ; "394758";       "1"; "N/A";    "0";   "0";    "0";   "0";       "0";  "10";   "3";   "0";"16"
  "10";  "4";"TILE_PLATFORM_BLOODROSE"  ; "394758";       "1"; "N/A";    "0";   "0";    "0";   "0";       "0";  "10";   "4";   "0";"16"
- "11";  "0";"TILE_TORCH"               ;      "0";       "0"; "N/A";    "0";   "0";    "0";   "0";"16750673";  "11";   "0";   "0";"16"
+ "11";  "0";"TILE_TORCH"               ;      "0";       "0"; "N/A";    "0";   "0";    "0";   "0";"15304000";  "11";   "0";   "0";"16"
  "11";  "1";"TILE_TORCH_FROST"         ;      "0";       "0"; "N/A";    "0";   "0";    "0";   "0"; "5143807";  "11";   "1";   "0";"16"
  "12";  "0";"TILE_TORCH"               ; "394758";       "0"; "N/A";    "0";   "0";    "0";   "0";       "0";  "11";   "0";   "0";"16"
  "12";  "1";"TILE_TORCH_FROST"         ; "394758";       "0"; "N/A";    "0";   "0";    "0";   "0";       "0";  "11";   "1";   "0";"16"
@@ -83,6 +83,7 @@
  "15";  "3";"TILE_SANDSTONE_DESERT"    ;"2105376";      "25";"1900";    "0";   "0";    "1";   "1";       "0";  "15";   "3";   "0";"16"
  "15";  "4";"TILE_SANDSTONE_BLACK"     ;"2105376";      "25";"1900";    "0";   "0";    "1";   "1";       "0";  "15";   "4";   "0";"16"
  "15";  "5";"TILE_SANDSTONE_BLACK"     ;"2105376";      "25";"1900";    "0";   "0";    "1";   "1";       "0";  "15";   "5";   "0";"16"
+ "16";  "0";"TILE_LANTERN_IRON_REGULAR";      "0";       "0"; "N/A";    "0";   "0";    "0";   "0";"16769944";  "16";   "0";   "0";"16"
 "254";  "0";"TILE_WATER"               ;"1708813";     "100";"1000";    "1";  "12";    "0";   "0";       "0"; "N/A"; "N/A";   "0";"16"
 "254";  "1";"TILE_WATER"               ;"1708813";     "100";"1000";    "1";  "12";    "0";   "0";       "0"; "N/A"; "N/A";   "0";"16"
 "254";  "2";"TILE_WATER"               ;"1708813";     "100";"1000";    "1";  "12";    "0";   "0";       "0"; "N/A"; "N/A";   "0";"16"
diff --git a/src/com/Torvald/Terrarum/UserInterface/BasicDebugInfoWindow.kt b/src/com/Torvald/Terrarum/UserInterface/BasicDebugInfoWindow.kt
index d988e62e6..95d275285 100644
--- a/src/com/Torvald/Terrarum/UserInterface/BasicDebugInfoWindow.kt
+++ b/src/com/Torvald/Terrarum/UserInterface/BasicDebugInfoWindow.kt
@@ -137,14 +137,14 @@ class BasicDebugInfoWindow : UICanvas {
         // Hitbox
         val zoom = Terrarum.game.screenZoom
         g.setColor(Color(0x007f00))
-        g.drawRect(hitbox.getHitboxStart().getX() * zoom - MapCamera.cameraX * zoom
-                , hitbox.getHitboxStart().getY() * zoom - MapCamera.cameraY * zoom
-                , hitbox.getWidth() * zoom
-                , hitbox.getHeight() * zoom)
+        g.drawRect(hitbox.hitboxStart.x * zoom - MapCamera.cameraX * zoom
+                , hitbox.hitboxStart.y * zoom - MapCamera.cameraY * zoom
+                , hitbox.width * zoom
+                , hitbox.height * zoom)
         // ...and its point
         g.fillRect(
-                (hitbox.getPointedX() - 1) * zoom - MapCamera.cameraX * zoom
-                , (hitbox.getPointedY() - 1) * zoom - MapCamera.cameraY * zoom
+                (hitbox.pointedX - 1) * zoom - MapCamera.cameraX * zoom
+                , (hitbox.pointedY - 1) * zoom - MapCamera.cameraY * zoom
                 , 3f, 3f)
         g.drawString(
                 Lang.get("DEV_COLOUR_LEGEND_GREEN") + " :  hitbox", (Terrarum.WIDTH - 200).toFloat()
@@ -152,14 +152,14 @@ class BasicDebugInfoWindow : UICanvas {
 
         // Next hitbox
         g.setColor(Color.blue)
-        g.drawRect(nextHitbox!!.getHitboxStart().getX() * zoom - MapCamera.cameraX * zoom
-                , nextHitbox.getHitboxStart().getY() * zoom - MapCamera.cameraY * zoom
-                , nextHitbox.getWidth() * zoom
-                , nextHitbox.getHeight() * zoom)
+        g.drawRect(nextHitbox!!.hitboxStart.x * zoom - MapCamera.cameraX * zoom
+                , nextHitbox.hitboxStart.y * zoom - MapCamera.cameraY * zoom
+                , nextHitbox.width * zoom
+                , nextHitbox.height * zoom)
         // ...and its point
         g.fillRect(
-                (nextHitbox.getPointedX() - 1) * zoom - MapCamera.cameraX * zoom
-                , (nextHitbox.getPointedY() - 1) * zoom - MapCamera.cameraY * zoom
+                (nextHitbox.pointedX - 1) * zoom - MapCamera.cameraX * zoom
+                , (nextHitbox.pointedY - 1) * zoom - MapCamera.cameraY * zoom
                 , 3f, 3f)
         g.drawString(
                 Lang.get("DEV_COLOUR_LEGEND_BLUE") + " :  nextHitbox", (Terrarum.WIDTH - 200).toFloat()
diff --git a/src/com/Torvald/Terrarum/UserInterface/UIHandler.kt b/src/com/Torvald/Terrarum/UserInterface/UIHandler.kt
index d8eba8b2a..c01488b03 100644
--- a/src/com/Torvald/Terrarum/UserInterface/UIHandler.kt
+++ b/src/com/Torvald/Terrarum/UserInterface/UIHandler.kt
@@ -96,7 +96,10 @@ constructor(val UI: UICanvas) {
             UIGraphicInstance.font = Terrarum.gameFontWhite
 
             UI.render(gc, UIGraphicInstance)
-            gameGraphicInstance.drawImage(UIDrawnCanvas, posX + MapCamera.getCameraX() * Terrarum.game.screenZoom, posY + MapCamera.getCameraY() * Terrarum.game.screenZoom)// compensate for screenZoom AND camera translation
+            gameGraphicInstance.drawImage(UIDrawnCanvas,
+                    posX + MapCamera.cameraX * Terrarum.game.screenZoom,
+                    posY + MapCamera.cameraY * Terrarum.game.screenZoom
+            )// compensate for screenZoom AND camera translation
             // (see Game.render -> g.translate())
         }
     }
diff --git a/src/com/Torvald/spriteAnimation/SpriteAnimation.java b/src/com/Torvald/spriteAnimation/SpriteAnimation.java
deleted file mode 100644
index b5080d7ec..000000000
--- a/src/com/Torvald/spriteAnimation/SpriteAnimation.java
+++ /dev/null
@@ -1,281 +0,0 @@
-
-/* Original code author: Sean Laurvick
- * This code is based on the original author's code written in Lua.
- */
-
-package com.Torvald.spriteAnimation;
-
-import com.Torvald.Terrarum.Game;
-import com.Torvald.Terrarum.Terrarum;
-import com.jme3.math.FastMath;
-import org.newdawn.slick.Graphics;
-import org.newdawn.slick.Image;
-import org.newdawn.slick.SlickException;
-import org.newdawn.slick.SpriteSheet;
-
-public class SpriteAnimation {
-
-    private SpriteSheet spriteImage;
-    private Image[][] sprites;
-    private int height;
-    private int width;
-    private int currentFrame = 1;
-    private int currentRow = 1;
-    private int nFrames;
-    private int nRows;
-    private int delay = 200;
-    private int delta = 0;
-    private boolean looping = true;
-    private boolean animationRunning = true;
-    private boolean flipHorizontal = false;
-    private boolean flipVertical = false;
-    private boolean visible = false;
-
-    private int offsetX = 0;
-    private int offsetY = 0;
-
-    private float prevScale = 1f;
-    private Image currentImage;
-
-    public SpriteAnimation() throws SlickException{
-
-    }
-
-    /**
-     * Sets spritesheet.
-     * MUST be called AFTER setDimension.
-     * @param imagePath path to the sprite sheet image.
-     * @throws SlickException
-     */
-    public void setSpriteImage(String imagePath) throws SlickException {
-        spriteImage = new SpriteSheet(imagePath, this.width, this.height);
-    }
-
-    /**
-     * Sets animation delay. Will default to 200 if not called.
-     * @param delay in milliseconds
-     */
-    public void setDelay(int delay) {
-        this.delay = delay;
-    }
-
-    /**
-     * Sets sprite dimension. This is necessary.
-     * @param w
-     * @param h
-     */
-    public void setDimension(int w, int h) {
-        width = w;
-        height = h;
-    }
-
-    /**
-     * Sets sheet rows and animation frames. Will default to
-     * 1, 1 (still image of top left from the sheet) if not called.
-     * @param rows
-     * @param frames
-     */
-    public void setRowsAndFrames(int rows, int frames) {
-        nRows = rows;
-        nFrames = frames;
-    }
-
-    /**
-     * Compose (load from spritesheet) as attributes defined.
-     * If attributes were not defined, will throw exception of
-     * SlickException or ArraySizeException.
-     * @throws SlickException
-     */
-    public void composeSprite() throws SlickException {
-        this.sprites = new Image[this.nRows][this.nFrames];
-
-        for (int i=0; i<this.nRows; i++){
-            for (int j=0; j<this.nFrames; j++){
-                this.sprites[i][j] = spriteImage.getSprite(j, i);
-                this.sprites[i][j].setFilter(Image.FILTER_LINEAR);
-            }
-        }
-    }
-
-    public void setAsVisible() {
-        visible = true;
-    }
-
-    public void setAsInvisible() {
-        visible = false;
-    }
-
-    public void update(int delta){
-        if (animationRunning){//skip this if animation is stopped
-            this.delta += delta;
-
-            //check if it's time to advance the frame
-            if ( this.delta >= ( this.delay ) ){
-                //if set to not loop, keep the frame at the last frame
-                if ( this.currentFrame == this.nFrames && !(this.looping) ){
-                    this.currentFrame = this.nFrames - 1;
-                }
-
-                //advance one frame, then reset delta counter
-                this.currentFrame = (this.currentFrame % this.nFrames) + 1;
-                this.delta = 0;
-            }
-        }
-    }
-
-    /**
-     * Render to specific coordinates. Will assume bottom-center point as image position.
-     * Will round to integer.
-     * @param g
-     * @param posX bottom-center point
-     * @param posY bottom-center point
-     * @param scale
-     */
-    public void render(Graphics g, float posX, float posY, float scale){
-        scale *= Terrarum.game.getScreenZoom();
-
-        // Null checking
-        if (currentImage == null) {
-            currentImage = getScaledSprite(scale);
-        }
-
-        if (visible) {
-            // re-scale image if scale has been changed
-            if (prevScale != scale) {
-                currentImage = getScaledSprite(scale);
-                prevScale = scale;
-            }
-
-            Image flippedImage = currentImage.getFlippedCopy(flipHorizontal, flipVertical);
-
-            flippedImage.startUse();
-            flippedImage.drawEmbedded(
-                      Math.round(posX * Terrarum.game.getScreenZoom())
-                    , Math.round(posY * Terrarum.game.getScreenZoom())
-                    , FastMath.floor(width * scale)
-                    , FastMath.floor(height * scale)
-            );
-            flippedImage.endUse();
-        }
-    }
-
-    public void render(Graphics g, float posX, float posY){
-        render(g, posX, posY, 1);
-    }
-
-    public void switchSprite(int newRow){
-        currentRow = newRow;
-
-        //if beyond the frame index then reset
-        if (currentFrame > nFrames){
-            reset();
-        }
-    }
-
-    public void switchSprite(int newRow, int newMax){
-        if (newMax > 0){
-            nFrames = newMax;
-        }
-
-        currentRow = newRow;
-
-        //if beyond the frame index then reset
-        if (currentFrame > nFrames){
-            reset();
-        }
-    }
-
-    public void switchSpriteDelay(int newDelay){
-        if (newDelay > 0){
-            delay = newDelay;
-        }
-    }
-
-    public void switchSprite(int newRow, int newMax, int newDelay){
-        if (newMax > 0){
-            nFrames = newMax;
-        }
-
-        if (newDelay > 0){
-            delay = newDelay;
-        }
-
-        currentRow = newRow;
-
-        //if beyond the frame index then reset
-        if (currentFrame > nFrames){
-            reset();
-        }
-    }
-
-    public void reset(){
-        currentFrame = 1;
-    }
-
-    public void start(){ //starts the animation
-        animationRunning = true;
-    }
-
-    public void start(int selectFrame){ //starts the animation
-        animationRunning = true;
-
-        //optional: seleft the frame no which to start the animation
-        currentFrame = selectFrame;
-    }
-
-    public void stop(){
-        animationRunning = false;
-    }
-
-    public void stop(int selectFrame){
-        animationRunning = false;
-
-        currentFrame = selectFrame;
-    }
-
-    public void flip(boolean horizontal, boolean vertical){
-        flipHorizontal = horizontal;
-        flipVertical = vertical;
-    }
-
-    public boolean flippedHorizontal() {
-        return flipHorizontal;
-    }
-
-    public boolean flippedVertical() {
-        return flipVertical;
-    }
-
-    public int getWidth(){
-        return width;
-    }
-
-    public int getHeight(){
-        return height;
-    }
-
-    private Image getScaledSprite(float scale) {
-        Image selectedImage = sprites[currentRow - 1][currentFrame - 1];
-
-        // resample
-        /*float nearestResampleScale = (scale > 1) ? Math.round(scale) : 1;
-        float linearResampleScale = scale / nearestResampleScale;
-
-        // scale 1.8 -> resample in 2(nearest), then resample in 0.9(linear)
-        // scale by nearestResampleScale (2, 3, ...)
-        selectedImage.setFilter(Image.FILTER_NEAREST);
-        Image selImgNearestScaled = selectedImage.getScaledCopy(nearestResampleScale);
-        // scale by linearResampleScale (.x)
-        Image selImgLinearScaled;
-        if (scale % 1 > 0) {
-            selImgNearestScaled.setFilter(Image.FILTER_LINEAR);
-            selImgLinearScaled = selImgNearestScaled.getScaledCopy(linearResampleScale);
-			return selImgLinearScaled;
-        }
-        else {
-            return selImgNearestScaled;
-        }*/
-        selectedImage.setFilter(Image.FILTER_NEAREST);
-        return selectedImage.getScaledCopy(scale);
-    }
-}
diff --git a/src/com/Torvald/spriteAnimation/SpriteAnimation.kt b/src/com/Torvald/spriteAnimation/SpriteAnimation.kt
new file mode 100644
index 000000000..a8347eac7
--- /dev/null
+++ b/src/com/Torvald/spriteAnimation/SpriteAnimation.kt
@@ -0,0 +1,261 @@
+/* Original code author: Sean Laurvick
+ * This code is based on the original author's code written in Lua.
+ */
+
+package com.Torvald.spriteAnimation
+
+import com.Torvald.Terrarum.Game
+import com.Torvald.Terrarum.Terrarum
+import com.jme3.math.FastMath
+import org.newdawn.slick.Graphics
+import org.newdawn.slick.Image
+import org.newdawn.slick.SlickException
+import org.newdawn.slick.SpriteSheet
+
+class SpriteAnimation @Throws(SlickException::class)
+constructor() {
+
+    private var spriteImage: SpriteSheet? = null
+    var height: Int = 0
+        private set
+    var width: Int = 0
+        private set
+    private var currentFrame = 1
+    private var currentRow = 1
+    private var nFrames: Int = 0
+    private var nRows: Int = 0
+    private var delay = 200
+    private var delta = 0
+    private val looping = true
+    private var animationRunning = true
+    private var flipHorizontal = false
+    private var flipVertical = false
+    private var visible = false
+
+    private val offsetX = 0
+    private val offsetY = 0
+
+    private var prevScale = 1f
+    private var currentImage: Image? = null
+
+    /**
+     * Sets spritesheet.
+     * MUST be called AFTER setDimension.
+     * @param imagePath path to the sprite sheet image.
+     * *
+     * @throws SlickException
+     */
+    @Throws(SlickException::class)
+    fun setSpriteImage(imagePath: String) {
+        spriteImage = SpriteSheet(imagePath, this.width, this.height)
+    }
+
+    /**
+     * Sets animation delay. Will default to 200 if not called.
+     * @param delay in milliseconds
+     */
+    fun setDelay(delay: Int) {
+        this.delay = delay
+    }
+
+    /**
+     * Sets sprite dimension. This is necessary.
+     * @param w
+     * *
+     * @param h
+     */
+    fun setDimension(w: Int, h: Int) {
+        width = w
+        height = h
+    }
+
+    /**
+     * Sets sheet rows and animation frames. Will default to
+     * 1, 1 (still image of top left from the sheet) if not called.
+     * @param rows
+     * *
+     * @param frames
+     */
+    fun setRowsAndFrames(rows: Int, frames: Int) {
+        nRows = rows
+        nFrames = frames
+    }
+
+    fun setAsVisible() {
+        visible = true
+    }
+
+    fun setAsInvisible() {
+        visible = false
+    }
+
+    fun update(delta: Int) {
+        if (animationRunning) {
+            //skip this if animation is stopped
+            this.delta += delta
+
+            //check if it's time to advance the frame
+            if (this.delta >= this.delay) {
+                //if set to not loop, keep the frame at the last frame
+                if (this.currentFrame == this.nFrames && !this.looping) {
+                    this.currentFrame = this.nFrames - 1
+                }
+
+                //advance one frame, then reset delta counter
+                this.currentFrame = this.currentFrame % this.nFrames + 1
+                this.delta = 0
+            }
+        }
+    }
+
+    /**
+     * Render to specific coordinates. Will assume bottom-center point as image position.
+     * Will round to integer.
+     * @param g
+     * *
+     * @param posX bottom-center point
+     * *
+     * @param posY bottom-center point
+     * *
+     * @param scale
+     */
+    @JvmOverloads fun render(g: Graphics, posX: Float, posY: Float, scale: Float = 1f) {
+        var scale = scale
+        scale *= Terrarum.game.screenZoom
+
+        // Null checking
+        if (currentImage == null) {
+            currentImage = getScaledSprite(scale)
+        }
+
+        if (visible) {
+            // re-scale image if scale has been changed
+            if (prevScale != scale) {
+                currentImage = getScaledSprite(scale)
+                prevScale = scale
+            }
+
+            val flippedImage = currentImage!!.getFlippedCopy(flipHorizontal, flipVertical)
+
+            flippedImage.startUse()
+            flippedImage.drawEmbedded(
+                    Math.round(posX * Terrarum.game.screenZoom).toFloat(),
+                    Math.round(posY * Terrarum.game.screenZoom).toFloat(),
+                    FastMath.floor(width * scale).toFloat(),
+                    FastMath.floor(height * scale).toFloat()
+            )
+            flippedImage.endUse()
+        }
+    }
+
+    fun switchSprite(newRow: Int) {
+        currentRow = newRow
+
+        //if beyond the frame index then reset
+        if (currentFrame > nFrames) {
+            reset()
+        }
+    }
+
+    fun switchSprite(newRow: Int, newMax: Int) {
+        if (newMax > 0) {
+            nFrames = newMax
+        }
+
+        currentRow = newRow
+
+        //if beyond the frame index then reset
+        if (currentFrame > nFrames) {
+            reset()
+        }
+    }
+
+    fun switchSpriteDelay(newDelay: Int) {
+        if (newDelay > 0) {
+            delay = newDelay
+        }
+    }
+
+    fun switchSprite(newRow: Int, newMax: Int, newDelay: Int) {
+        if (newMax > 0) {
+            nFrames = newMax
+        }
+
+        if (newDelay > 0) {
+            delay = newDelay
+        }
+
+        currentRow = newRow
+
+        //if beyond the frame index then reset
+        if (currentFrame > nFrames) {
+            reset()
+        }
+    }
+
+    fun reset() {
+        currentFrame = 1
+    }
+
+    fun start() {
+        //starts the animation
+        animationRunning = true
+    }
+
+    fun start(selectFrame: Int) {
+        //starts the animation
+        animationRunning = true
+
+        //optional: seleft the frame no which to start the animation
+        currentFrame = selectFrame
+    }
+
+    fun stop() {
+        animationRunning = false
+    }
+
+    fun stop(selectFrame: Int) {
+        animationRunning = false
+
+        currentFrame = selectFrame
+    }
+
+    fun flip(horizontal: Boolean, vertical: Boolean) {
+        flipHorizontal = horizontal
+        flipVertical = vertical
+    }
+
+    fun flippedHorizontal(): Boolean {
+        return flipHorizontal
+    }
+
+    fun flippedVertical(): Boolean {
+        return flipVertical
+    }
+
+    private fun getScaledSprite(scale: Float): Image {
+        val selectedImage = spriteImage!!.getSprite(currentFrame - 1, currentRow - 1)
+        //Image selectedImage = sprites[currentRow - 1][currentFrame - 1];
+
+        // resample
+        /*float nearestResampleScale = (scale > 1) ? Math.round(scale) : 1;
+        float linearResampleScale = scale / nearestResampleScale;
+
+        // scale 1.8 -> resample in 2(nearest), then resample in 0.9(linear)
+        // scale by nearestResampleScale (2, 3, ...)
+        selectedImage.setFilter(Image.FILTER_NEAREST);
+        Image selImgNearestScaled = selectedImage.getScaledCopy(nearestResampleScale);
+        // scale by linearResampleScale (.x)
+        Image selImgLinearScaled;
+        if (scale % 1 > 0) {
+            selImgNearestScaled.setFilter(Image.FILTER_LINEAR);
+            selImgLinearScaled = selImgNearestScaled.getScaledCopy(linearResampleScale);
+            return selImgLinearScaled;
+        }
+        else {
+            return selImgNearestScaled;
+        }*/
+        selectedImage.filter = Image.FILTER_NEAREST
+        return selectedImage.getScaledCopy(scale)
+    }
+}