diff --git a/assets/graphics/fonts/7x13_Tamzen7x14b.tga b/assets/graphics/fonts/7x13_Tamzen7x14b.tga
new file mode 100644
index 000000000..e3937e438
--- /dev/null
+++ b/assets/graphics/fonts/7x13_Tamzen7x14b.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1b5a5fe181fa98c705df6e508433ef44b83016a0fc9de9f07b96637c898c4bfc
+size 34988
diff --git a/src/module-info.java.wtf b/src/module-info.java.wtf
index f5a203305..6d6af58ec 100644
--- a/src/module-info.java.wtf
+++ b/src/module-info.java.wtf
@@ -1,16 +1,26 @@
 module terrarum {
+    // java
+    requires java.desktop;
+    requires java.logging;
+    requires jdk.unsupported; // sun.misc.Unsafe
+
+    // kotlin
+    requires kotlin.stdlib;
+
+    // gdx
     requires gdx;
     requires gdx.backend.lwjgl;
     requires gdx.controllers;
+
+    // terrarum
+    requires TerrarumSansBitmap;
+    requires TerranVirtualDisk;
+    requires Terrarum.Joise;
+
+    // etc
+    requires GetCpuName;
     requires jxinput;
     requires gson;
-    requires GetCpuName;
-    requires TerrarumSansBitmap;
-    requires kotlin.stdlib;
-    requires java.desktop;
-    requires java.logging;
-    requires TerranVirtualDisk;
     requires commons.codec;
     requires commons.csv;
-    requires Terrarum.Joise;
 }
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/AppLoader.java b/src/net/torvald/terrarum/AppLoader.java
index 6f0dc07ea..aa15a4f56 100644
--- a/src/net/torvald/terrarum/AppLoader.java
+++ b/src/net/torvald/terrarum/AppLoader.java
@@ -125,10 +125,10 @@ public class AppLoader implements ApplicationListener {
     public static String GAME_LOCALE = System.getProperty("user.language") + System.getProperty("user.country");
 
     public static final String systemArch = System.getProperty("os.arch");
-    public static String processor;
-    public static String processorVendor;
-    public static String renderer;
-    public static String rendererVendor;
+    public static String processor = "(a super-duper virtual processor)";
+    public static String processorVendor = "(andromeda software development)"; // definitely not taken from "that" demogroup
+    public static String renderer = "(a super-fancy virtual photoradiator)";
+    public static String rendererVendor = "(radiosity)";
 
     public static final boolean is32BitJVM = !System.getProperty("sun.arch.data.model").contains("64");
 
@@ -610,15 +610,14 @@ public class AppLoader implements ApplicationListener {
         if (injectScreen != null) {
             setScreen(injectScreen);
         }
+        else {
+            ModMgr.INSTANCE.invoke(); // invoke Module Manager
+            AppLoader.resourcePool.loadAll();
+            printdbg(this, "all modules loaded successfully");
 
-
-        ModMgr.INSTANCE.invoke(); // invoke Module Manager
-        AppLoader.resourcePool.loadAll();
-        printdbg(this, "all modules loaded successfully");
-
-
-        BlocksDrawer.INSTANCE.getWorld(); // will initialize the BlocksDrawer by calling dummy method
-        LightmapRenderer.INSTANCE.hdr(0f);
+            BlocksDrawer.INSTANCE.getWorld(); // will initialize the BlocksDrawer by calling dummy method
+            LightmapRenderer.INSTANCE.hdr(0f);
+        }
 
 
         printdbg(this, "PostInit done");
diff --git a/src/net/torvald/terrarum/Terrarum.kt b/src/net/torvald/terrarum/Terrarum.kt
index 22f24a9d6..5c8125d04 100644
--- a/src/net/torvald/terrarum/Terrarum.kt
+++ b/src/net/torvald/terrarum/Terrarum.kt
@@ -15,6 +15,7 @@ import com.badlogic.gdx.utils.GdxRuntimeException
 import com.jme3.math.FastMath
 import net.torvald.random.HQRNG
 import net.torvald.terrarum.AppLoader.*
+import net.torvald.terrarum.concurrent.ThreadParallel
 import net.torvald.terrarum.gameactors.Actor
 import net.torvald.terrarum.gameactors.ActorID
 import net.torvald.terrarum.imagefont.TinyAlphNum
@@ -166,7 +167,7 @@ object Terrarum : Screen, Disposable {
     val STATE_ID_TOOL_RUMBLE_DIAGNOSIS = 0x201
 
     /** Available CPU threads */
-    val THREADS = Runtime.getRuntime().availableProcessors() + 1
+    val THREADS = ThreadParallel.threadCount //Runtime.getRuntime().availableProcessors() + 1
 
     /**
      * If the game is multithreading.
@@ -196,19 +197,22 @@ object Terrarum : Screen, Disposable {
 
 
     init {
-        println("$NAME version ${AppLoader.getVERSION_STRING()}")
-        println("LibGDX version ${com.badlogic.gdx.Version.VERSION}")
+        println("[Terrarum] init called by:")
+        Thread.currentThread().stackTrace.forEach { println("... $it") }
+
+        println("[Terrarum] $NAME version ${AppLoader.getVERSION_STRING()}")
+        println("[Terrarum] LibGDX version ${com.badlogic.gdx.Version.VERSION}")
 
 
-        println("os.arch = $systemArch") // debug info
+        println("[Terrarum] os.arch = $systemArch") // debug info
 
         if (is32BitJVM) {
             printdbgerr(this, "32 Bit JVM detected")
         }
 
 
-        println("processor = $processor")
-        println("vendor = $processorVendor")
+        println("[Terrarum] processor = $processor")
+        println("[Terrarum] vendor = $processorVendor")
 
 
         setGamepadButtonLabels()
@@ -216,6 +220,9 @@ object Terrarum : Screen, Disposable {
 
         AppLoader.disposableSingletonsPool.add(this)
 
+
+
+        println("[Terrarum] init complete")
     }
 
     private fun setGamepadButtonLabels() {
diff --git a/src/net/torvald/terrarum/blockproperties/BlockCodex.kt b/src/net/torvald/terrarum/blockproperties/BlockCodex.kt
index 64a77e6d4..8855dbf61 100644
--- a/src/net/torvald/terrarum/blockproperties/BlockCodex.kt
+++ b/src/net/torvald/terrarum/blockproperties/BlockCodex.kt
@@ -93,7 +93,7 @@ object BlockCodex {
         }
     }
 
-    fun getOrNull(rawIndex: Int?): BlockProp? {
+    fun getOrNull(rawIndex: Int?): BlockProp? {//<O>
         return blockProps[rawIndex]
     }
 
diff --git a/src/net/torvald/terrarum/concurrent/ThreadParallel.kt b/src/net/torvald/terrarum/concurrent/ThreadParallel.kt
index 5e144b270..bce092d02 100644
--- a/src/net/torvald/terrarum/concurrent/ThreadParallel.kt
+++ b/src/net/torvald/terrarum/concurrent/ThreadParallel.kt
@@ -1,6 +1,5 @@
 package net.torvald.terrarum.concurrent
 
-import net.torvald.terrarum.Terrarum
 import kotlin.math.absoluteValue
 
 typealias RunnableFun = () -> Unit
@@ -11,7 +10,7 @@ typealias ThreadableFun = (Int) -> Unit
  * Created by minjaesong on 2016-05-25.
  */
 object ThreadParallel {
-    val threadCount = Terrarum.THREADS // modify this to your taste
+    val threadCount = Runtime.getRuntime().availableProcessors() + 1 // modify this to your taste
 
     private val pool: Array<Thread?> = Array(threadCount) { null }
 
@@ -49,6 +48,7 @@ object ThreadParallel {
      * Start all thread in the pool and wait for them to all die. If the thread in the pool is NULL, it will simply ignored.
      */
     fun startAllWaitForDie() {
+        // ThreadParallelTester says this function actually works as intended...
         pool.forEach { it?.start() }
         pool.forEach { it?.join() }
     }
@@ -69,7 +69,7 @@ object ThreadParallel {
  */
 @Deprecated("Experimental.", ReplaceWith("ThreadParallel", "net.torvald.terrarum.concurrent.ThreadParallel"))
 object BlockingThreadPool {
-    val threadCount = Terrarum.THREADS // modify this to your taste
+    val threadCount = Runtime.getRuntime().availableProcessors() + 1 // modify this to your taste
     private val pool: Array<Thread?> = Array(threadCount, { null })
     private var tasks: List<RunnableFun> = ArrayList<RunnableFun>()
     @Volatile private var dispatchedTasks = 0
@@ -127,85 +127,84 @@ object BlockingThreadPool {
     }
 }
 
-object ParallelUtils {
-    fun <T, R> Iterable<T>.parallelMap(transform: (T) -> R): List<R> {
-        val tasks = this.sliceEvenly(ThreadParallel.threadCount)
-        val destination = Array(ThreadParallel.threadCount) { ArrayList<R>() }
-        tasks.forEachIndexed { index, list ->
-            ThreadParallel.map(index, "ParallelUtils.parallelMap@${this.javaClass.canonicalName}") {
-                for (item in list)
-                    destination[index].add(transform(item as T))
-            }
-        }
 
-        ThreadParallel.startAllWaitForDie()
-
-        return destination.flatten()
-    }
-
-    /**
-     * Shallow flat of the array
-     */
-    fun <T> Array<out Iterable<T>>.flatten(): List<T> {
-        val al = ArrayList<T>()
-        this.forEach { it.forEach { al.add(it) } }
-        return al
-    }
-
-    /**
-     * Shallow flat of the iterable
-     */
-    fun <T> Iterable<out Iterable<T>>.flatten(): List<T> {
-        val al = ArrayList<T>()
-        this.forEach { it.forEach { al.add(it) } }
-        return al
-    }
-
-    /**
-     * Shallow flat of the array
-     */
-    fun <T> Array<out Array<T>>.flatten(): List<T> {
-        val al = ArrayList<T>()
-        this.forEach { it.forEach { al.add(it) } }
-        return al
-    }
-
-    fun <T> Iterable<T>.sliceEvenly(slices: Int): List<List<T>> = this.toList().sliceEvenly(slices)
-
-    fun <T> List<T>.sliceEvenly(slices: Int): List<List<T>> {
-        return (0 until slices).map {
-            this.subList(
-                    this.size.toFloat().div(slices).times(it).roundInt(),
-                    this.size.toFloat().div(slices).times(it + 1).roundInt()
-            )
+fun <T, R> Iterable<T>.parallelMap(transform: (T) -> R): List<R> {
+    val tasks = this.sliceEvenly(ThreadParallel.threadCount)
+    val destination = Array(ThreadParallel.threadCount) { ArrayList<R>() }
+    tasks.forEachIndexed { index, list ->
+        ThreadParallel.map(index, "ParallelUtils.parallelMap@${this.javaClass.canonicalName}") {
+            for (item in list)
+                destination[index].add(transform(item as T))
         }
     }
 
-    fun <T> Array<T>.sliceEvenly(slices: Int): List<Array<T>> {
-        return (0 until slices).map {
-            this.sliceArray(
-                    this.size.toFloat().div(slices).times(it).roundInt() until
-                            this.size.toFloat().div(slices).times(it + 1).roundInt()
-            )
-        }
+    ThreadParallel.startAllWaitForDie()
+
+    return destination.flatten()
+}
+
+/**
+ * Shallow flat of the array
+ */
+fun <T> Array<out Iterable<T>>.flatten(): List<T> {
+    val al = ArrayList<T>()
+    this.forEach { it.forEach { al.add(it) } }
+    return al
+}
+
+/**
+ * Shallow flat of the iterable
+ */
+fun <T> Iterable<out Iterable<T>>.flatten(): List<T> {
+    val al = ArrayList<T>()
+    this.forEach { it.forEach { al.add(it) } }
+    return al
+}
+
+/**
+ * Shallow flat of the array
+ */
+fun <T> Array<out Array<T>>.flatten(): List<T> {
+    val al = ArrayList<T>()
+    this.forEach { it.forEach { al.add(it) } }
+    return al
+}
+
+fun <T> Iterable<T>.sliceEvenly(slices: Int): List<List<T>> = this.toList().sliceEvenly(slices)
+
+fun <T> List<T>.sliceEvenly(slices: Int): List<List<T>> {
+    return (0 until slices).map {
+        this.subList(
+                this.size.toFloat().div(slices).times(it).roundInt(),
+                this.size.toFloat().div(slices).times(it + 1).roundInt()
+        )
     }
+}
 
-    fun IntProgression.sliceEvenly(slices: Int): List<IntProgression> {
-        if (this.step.absoluteValue != 1) throw UnsupportedOperationException("Sorry, step != +1/-1")
-        val size = (this.last - this.first).absoluteValue + (this.step.toFloat()).absoluteValue
-
-        // println(size)
-
-        return if (this.first < this.last) (0 until slices).map {
-            this.first + size.div(slices).times(it).roundInt() ..
-                    this.first + size.div(slices).times(it + 1).roundInt() - 1
-        }
-        else (0 until slices).map {
-            this.first - size.div(slices).times(it).roundInt() downTo
-                    this.first - size.div(slices).times(it + 1).roundInt() + 1
-        }
+fun <T> Array<T>.sliceEvenly(slices: Int): List<Array<T>> {
+    return (0 until slices).map {
+        this.sliceArray(
+                this.size.toFloat().div(slices).times(it).roundInt() until
+                        this.size.toFloat().div(slices).times(it + 1).roundInt()
+        )
     }
+}
+
+fun IntProgression.sliceEvenly(slices: Int): List<IntProgression> {
+    if (this.step.absoluteValue != 1) throw UnsupportedOperationException("Sorry, step != +1/-1")
+    val size = (this.last - this.first).absoluteValue + (this.step.toFloat()).absoluteValue
+
+    // println(size)
+
+    return if (this.first < this.last) (0 until slices).map {
+        this.first + size.div(slices).times(it).roundInt() ..
+                this.first + size.div(slices).times(it + 1).roundInt() - 1
+    }
+    else (0 until slices).map {
+        this.first - size.div(slices).times(it).roundInt() downTo
+                this.first - size.div(slices).times(it + 1).roundInt() + 1
+    }
+}
 
 
-    private inline fun Float.roundInt(): Int = Math.round(this)
-}
\ No newline at end of file
+private inline fun Float.roundInt(): Int = Math.round(this)
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/gameworld/GameWorld.kt b/src/net/torvald/terrarum/gameworld/GameWorld.kt
index 3f9479475..71af8f3c1 100644
--- a/src/net/torvald/terrarum/gameworld/GameWorld.kt
+++ b/src/net/torvald/terrarum/gameworld/GameWorld.kt
@@ -464,6 +464,7 @@ open class GameWorld : Disposable {
     override fun dispose() {
         layerWall.dispose()
         layerTerrain.dispose()
+        //nullWorldInstance?.dispose() // must be called ONLY ONCE; preferably when the app exits
     }
 
     companion object {
diff --git a/src/net/torvald/terrarum/modulebasegame/EntryPoint.kt b/src/net/torvald/terrarum/modulebasegame/EntryPoint.kt
index e878f1e8f..c1bcb13b3 100644
--- a/src/net/torvald/terrarum/modulebasegame/EntryPoint.kt
+++ b/src/net/torvald/terrarum/modulebasegame/EntryPoint.kt
@@ -86,7 +86,7 @@ class EntryPoint : ModuleEntryPoint() {
 
 
 
-        println("Welcome back!")
+        println("[Basegame.EntryPoint] Welcome back!")
     }
 
     override fun dispose() {
diff --git a/src/net/torvald/terrarum/modulebasegame/gameworld/WorldSimulator.kt b/src/net/torvald/terrarum/modulebasegame/gameworld/WorldSimulator.kt
index 0e94ac84e..2d40cf69e 100644
--- a/src/net/torvald/terrarum/modulebasegame/gameworld/WorldSimulator.kt
+++ b/src/net/torvald/terrarum/modulebasegame/gameworld/WorldSimulator.kt
@@ -52,6 +52,7 @@ object WorldSimulator {
     private val ingame = Terrarum.ingame!!
     private val world = ingame.world
 
+    // TODO use R-Tree instead?  https://stackoverflow.com/questions/10269179/find-rectangles-that-contain-point-efficient-algorithm#10269695
     private var actorsKDTree: KDTree? = null
 
     fun resetForThisFrame() {
diff --git a/src/net/torvald/terrarum/tests/NoiseGenerator.kt b/src/net/torvald/terrarum/tests/NoiseGenerator.kt
index 7fda7fb6a..6eee0a34f 100644
--- a/src/net/torvald/terrarum/tests/NoiseGenerator.kt
+++ b/src/net/torvald/terrarum/tests/NoiseGenerator.kt
@@ -20,7 +20,7 @@ import net.torvald.random.HQRNG
 import net.torvald.terrarum.AppLoader
 import net.torvald.terrarum.Terrarum
 import net.torvald.terrarum.concurrent.BlockingThreadPool
-import net.torvald.terrarum.concurrent.ParallelUtils.sliceEvenly
+import net.torvald.terrarum.concurrent.sliceEvenly
 import net.torvald.terrarum.inUse
 import net.torvald.terrarum.modulebasegame.Ingame
 import net.torvald.terrarum.roundInt
diff --git a/src/net/torvald/terrarum/tests/ThreadParallelTester.kt b/src/net/torvald/terrarum/tests/ThreadParallelTester.kt
new file mode 100644
index 000000000..026a3b920
--- /dev/null
+++ b/src/net/torvald/terrarum/tests/ThreadParallelTester.kt
@@ -0,0 +1,164 @@
+package net.torvald.terrarum.tests
+
+import com.badlogic.gdx.ApplicationAdapter
+import com.badlogic.gdx.Gdx
+import com.badlogic.gdx.Input
+import com.badlogic.gdx.InputAdapter
+import com.badlogic.gdx.backends.lwjgl.LwjglApplication
+import com.badlogic.gdx.backends.lwjgl.LwjglApplicationConfiguration
+import com.badlogic.gdx.graphics.Color
+import com.badlogic.gdx.graphics.OrthographicCamera
+import com.badlogic.gdx.graphics.Pixmap
+import com.badlogic.gdx.graphics.Texture
+import com.badlogic.gdx.graphics.g2d.SpriteBatch
+import com.badlogic.gdx.graphics.glutils.ShaderProgram
+import com.sudoplay.joise.Joise
+import com.sudoplay.joise.module.ModuleBasisFunction
+import com.sudoplay.joise.module.ModuleFractal
+import com.sudoplay.joise.module.ModuleScaleOffset
+import net.torvald.random.HQRNG
+import net.torvald.terrarum.concurrent.ThreadParallel
+import net.torvald.terrarum.concurrent.ThreadableFun
+import net.torvald.terrarum.concurrent.sliceEvenly
+import net.torvald.terrarum.inUse
+import net.torvald.terrarum.roundInt
+import kotlin.math.absoluteValue
+import kotlin.system.measureNanoTime
+
+/**
+ * Created by minjaesong on 2019-06-17.
+ */
+class ThreadParallelTester : ApplicationAdapter() {
+
+    lateinit var batch: SpriteBatch
+    lateinit var camera: OrthographicCamera
+    lateinit var pixmap: Pixmap
+    lateinit var texture: Texture
+    private val IMAGE_SIZE = 1024
+    private val IMAGE_SIZEF = IMAGE_SIZE.toFloat()
+    private val IMAGE_SIZED = IMAGE_SIZE.toDouble()
+    private val RNG = HQRNG()
+
+    override fun create() {
+        Gdx.input.inputProcessor = ThreadParallelTesterController(this)
+
+        batch = SpriteBatch()
+        camera = OrthographicCamera(IMAGE_SIZEF, IMAGE_SIZEF)
+
+        camera.setToOrtho(true, IMAGE_SIZEF, IMAGE_SIZEF)
+        camera.update()
+        Gdx.gl20.glViewport(0, 0, IMAGE_SIZE, IMAGE_SIZE)
+
+        pixmap = Pixmap(IMAGE_SIZE, IMAGE_SIZE, Pixmap.Format.RGBA8888)
+        texture = Texture(1, 1, Pixmap.Format.RGBA8888)
+
+        batch.projectionMatrix = camera.combined
+
+        println("[ThreadParallelTester] Hello, world!")
+    }
+
+    var regenerate = true
+    var generateDone = true
+
+    override fun render() {
+        Gdx.graphics.setTitle("F: ${Gdx.graphics.framesPerSecond}")
+
+        if (regenerate) {
+            // fill pixmap with slow-to-calculate noises.
+            // create parallel job
+            // run parallel job, wait all of them to die
+            // render the pixmap
+
+            // expected result: app freezes (or nothing is drawn) until all the parallel job is done
+
+            println("Noise regenerating...")
+            regenerate = false
+            generateDone = false
+            val time = measureNanoTime {
+                setupParallelJobs()
+                //ThreadParallel.startAll()
+                ThreadParallel.startAllWaitForDie()
+            }
+            generateDone = true
+            println("Noise generation complete, took ${time.toDouble() / 1_000_000} ms\n")
+        }
+
+        // render
+        texture.dispose()
+        texture = Texture(pixmap)
+
+        batch.inUse {
+            batch.projectionMatrix = camera.combined
+            batch.color = Color.WHITE
+            batch.draw(texture, 0f, 0f)
+        }
+    }
+
+    private fun setupParallelJobs() {
+        val seed = RNG.nextLong()
+        for (i in 0 until ThreadParallel.threadCount) {
+            ThreadParallel.map(i, "NoiseGen", makeGenFun(seed, i))
+        }
+    }
+
+    private val scanlineNumbers: List<IntProgression> = (0 until IMAGE_SIZE).sliceEvenly(ThreadParallel.threadCount)
+    private fun makeGenFun(seed: Long, index: Int): ThreadableFun = { i ->
+        val module = ModuleFractal()
+        module.setType(ModuleFractal.FractalType.BILLOW)
+        module.setAllSourceBasisTypes(ModuleBasisFunction.BasisType.GRADIENT)
+        module.setAllSourceInterpolationTypes(ModuleBasisFunction.InterpolationType.QUINTIC)
+        module.setNumOctaves(10)
+        module.setFrequency(8.0)
+        module.seed = seed
+
+        val moduleScale = ModuleScaleOffset()
+        moduleScale.setSource(module)
+        moduleScale.setScale(0.5)
+        moduleScale.setOffset(0.0)
+
+        val noiseModule = Joise(moduleScale)
+
+        for (y in scanlineNumbers[index]) {
+            for (x in 0 until IMAGE_SIZE) {
+                val uvX = x / IMAGE_SIZED
+                val uvY = y / IMAGE_SIZED
+
+                val noiseValue = noiseModule.get(uvX, uvY).absoluteValue
+                val rgb = (noiseValue * 255.0).roundInt()
+
+                pixmap.drawPixel(x, y, (rgb shl 24) or (rgb shl 16) or (rgb shl 8) or 0xFF)
+            }
+        }
+    }
+
+    override fun dispose() {
+        pixmap.dispose()
+        texture.dispose()
+    }
+}
+
+class ThreadParallelTesterController(val host: ThreadParallelTester) : InputAdapter() {
+    override fun keyDown(keycode: Int): Boolean {
+        if (keycode == Input.Keys.SPACE && host.generateDone) {
+            host.regenerate = true
+        }
+        return true
+    }
+}
+
+fun main(args: Array<String>) {
+    ShaderProgram.pedantic = false
+
+    val appConfig = LwjglApplicationConfiguration()
+    appConfig.vSyncEnabled = false
+    appConfig.resizable = false
+    appConfig.width = 1024
+    appConfig.height = 1024
+    appConfig.backgroundFPS = 9999
+    appConfig.foregroundFPS = 9999
+
+    appConfig.forceExit = true
+
+    //LwjglApplication(AppLoader(appConfig, ThreadParallelTester()), appConfig)
+    LwjglApplication(ThreadParallelTester(), appConfig)
+}
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/tests/UITestPad1.kt b/src/net/torvald/terrarum/tests/UITestPad1.kt
index f3ad25dde..fcedbe9c6 100644
--- a/src/net/torvald/terrarum/tests/UITestPad1.kt
+++ b/src/net/torvald/terrarum/tests/UITestPad1.kt
@@ -20,33 +20,33 @@ class UITestPad1 : ScreenAdapter() {
 
     val treeStr = """
 - File
- - New : Ctrl-N
- - Open : Ctrl-O
+ - New
+ - Open
  - Open Recent
   - yaml_example.yaml
   - Yaml.kt
- - Close : Ctrl-W
+ - Close
  - Settings
  - Line Separators
   - CRLF
   - CR
   - LF
 - Edit
- - Undo : Ctrl-Z
- - Redo : Shift-Ctrl-Z
- - Cut : Ctrl-X
- - Copy : Ctrl-C
- - Paste : Ctrl-V
+ - Undo
+ - Redo
+ - Cut
+ - Copy
+ - Paste
  - Find
-  - Find : Ctrl-F
-  - Replace : Shift-Ctrl-F
+  - Find
+  - Replace
  - Convert Indents
   - To Spaces
    - Set Project Indentation
   - To Tabs
 - Refactor
  - Refactor This
- - Rename : Shift-Ctrl-R
+ - Rename
  - Extract
   - Variable
   - Property
diff --git a/src/net/torvald/terrarum/worlddrawer/BlocksDrawerNew.kt b/src/net/torvald/terrarum/worlddrawer/BlocksDrawerNew.kt
index b7d7efe0f..1a90c27bd 100644
--- a/src/net/torvald/terrarum/worlddrawer/BlocksDrawerNew.kt
+++ b/src/net/torvald/terrarum/worlddrawer/BlocksDrawerNew.kt
@@ -13,7 +13,6 @@ import net.torvald.terrarum.gameworld.fmod
 import net.torvald.terrarum.modulebasegame.gameworld.GameWorldExtension
 import net.torvald.terrarum.modulebasegame.gameworld.WorldSimulator
 import net.torvald.terrarum.modulebasegame.gameworld.WorldTime
-import net.torvald.terrarum.utils.JsonWriter
 import net.torvald.terrarum.worlddrawer.CreateTileAtlas.TILES_IN_X
 import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
 import kotlin.math.roundToInt
@@ -98,7 +97,7 @@ internal object BlocksDrawer {
         printdbg(this, "Making terrain textures...")
 
         CreateTileAtlas()
-        JsonWriter.writeToFile(CreateTileAtlas.tags, "${AppLoader.defaultDir}/test_rendertags.json")
+        //JsonWriter.writeToFile(CreateTileAtlas.tags, "${AppLoader.defaultDir}/test_rendertags.json")
         // each takes about 60 seconds
         //printdbg(this, "Writing pixmap as tga: atlas.tga")
         //PixmapIO2.writeTGA(Gdx.files.absolute("${AppLoader.defaultDir}/atlas.tga"), CreateTileAtlas.atlas, false)
diff --git a/src/net/torvald/terrarum/worlddrawer/LightmapRendererNew.kt b/src/net/torvald/terrarum/worlddrawer/LightmapRendererNew.kt
index 4a3d8c1d8..0562780f3 100644
--- a/src/net/torvald/terrarum/worlddrawer/LightmapRendererNew.kt
+++ b/src/net/torvald/terrarum/worlddrawer/LightmapRendererNew.kt
@@ -11,7 +11,7 @@ import net.torvald.terrarum.AppLoader.printdbg
 import net.torvald.terrarum.blockproperties.Block
 import net.torvald.terrarum.blockproperties.BlockCodex
 import net.torvald.terrarum.blockproperties.Fluid
-import net.torvald.terrarum.concurrent.ParallelUtils.sliceEvenly
+import net.torvald.terrarum.concurrent.sliceEvenly
 import net.torvald.terrarum.concurrent.ThreadParallel
 import net.torvald.terrarum.gameactors.ActorWBMovable
 import net.torvald.terrarum.gameactors.ActorWithBody
@@ -400,7 +400,15 @@ object LightmapRenderer {
     }
 
     private fun buildNoopMask() {
-        fun isShaded(x: Int, y: Int) = BlockCodex[world.getTileFromTerrain(x, y) ?: Block.STONE].isSolid
+        fun isShaded(x: Int, y: Int) = try {
+            BlockCodex[world.getTileFromTerrain(x, y)].isSolid
+        }
+        catch (e: NullPointerException) {
+            System.err.println("Invalid block id ${world.getTileFromTerrain(x, y)} from coord ($x, $y)")
+            e.printStackTrace()
+
+            false
+        }
 
         /*
         update ordering: clockwise snake