it works yay :)

assets/4096_bayer.frag

@@ -1,4 +1,4 @@
-#version 120
+#version 130
 #ifdef GL_ES
     precision mediump float;
 #endif

assets/4096_bayer_skyboxfill.frag

@@ -1,4 +1,4 @@
-#version 120
+#version 130
 #ifdef GL_ES
     precision mediump float;
 #endif

assets/aaaxmul.frag

@@ -1,4 +1,4 @@
-#version 120
+#version 130
 #ifdef GL_ES
     precision mediump float;
 #endif

assets/blendGlow.frag

@@ -1,4 +1,4 @@
-#version 120
+#version 130
 #ifdef GL_ES
     precision mediump float;
 #endif

assets/crt.frag

@@ -1,4 +1,4 @@
-#version 120
+#version 130
 #ifdef GL_ES
     precision mediump float;
 #endif

assets/hicolour.frag

@@ -1,4 +1,4 @@
-#version 120
+#version 130
 #ifdef GL_ES
     precision mediump float;
 #endif

assets/loadingCircle.frag

@@ -1,4 +1,4 @@
-#version 120
+#version 130
 #ifdef GL_ES
     precision mediump float;
 #endif

assets/passthrurgb.frag

@@ -1,4 +1,4 @@
-#version 120
+#version 130
 #ifdef GL_ES
     precision mediump float;
 #endif

assets/raytracelight.frag

@@ -1,4 +1,4 @@
-#version 120
+#version 130
 #ifdef GL_ES
     precision mediump float;
 #endif

assets/rgbxmul.frag

@@ -1,4 +1,4 @@
-#version 120
+#version 130
 #ifdef GL_ES
     precision mediump float;
 #endif

assets/skyboxfill.frag

@@ -1,4 +1,4 @@
-#version 120
+#version 130
 #ifdef GL_ES
     precision mediump float;
 #endif

assets/tiling.frag

@@ -2,7 +2,7 @@
 
 */
 
-#version 120
+#version 130
 #ifdef GL_ES
     precision mediump float;
 #endif

src/net/torvald/UnsafePtr.kt

@@ -44,7 +44,7 @@ internal object UnsafeHelper {
      *
      * @return offset from the array's base memory address (aka pointer) that the actual data begins.
      */
-    fun getArrayOffset(obj: Any) = unsafe.arrayBaseOffset(obj.javaClass)
+    fun getArrayOffset(obj: Any) = unsafe.arrayBaseOffset(obj.javaClass).toLong()
 }
 
 /**

src/net/torvald/gdx/graphics/Cvec.kt

@@ -34,10 +34,10 @@ import com.badlogic.gdx.utils.NumberUtils
 class Cvec {
 
     /** the red, green, blue and alpha components  */
-    var r: Float = 0.toFloat()
-    var g: Float = 0.toFloat()
-    var b: Float = 0.toFloat()
-    var a: Float = 0.toFloat()
+    var r: Float = 0f
+    var g: Float = 0f
+    var b: Float = 0f
+    var a: Float = 0f
 
     /** Constructs a new Cvec with all components set to 0.  */
     constructor() {}

src/net/torvald/spriteassembler/AssembleSheetPixmap.kt

@@ -107,7 +107,7 @@ internal object AssembleFrameBase {
         transforms.forEach { transform ->
             if (transform.joint.name == ADProperties.ALL_JOINT_SELECT_KEY) {
                 // transform applies to all joints
-                for (c in 0 until out.size) {
+                for (c in out.indices) {
                     out[c] = out[c].first to (out[c].second + transform.translate)
                 }
             }

src/net/torvald/terrarum/AppLoader.java

@@ -346,7 +346,9 @@ public class AppLoader implements ApplicationListener {
             // safe area box
             //KeyToggler.INSTANCE.forceSet(Input.Keys.F11, true);
         }
-
+        else {
+            System.err.println("Game not started using DEBUG MODE -- current build of the game will display black screen without debug mode");
+        }
         // set some more configuration vars
         MULTITHREAD = ThreadParallel.INSTANCE.getThreadCount() >= 3 && getConfigBoolean("multithread");
 

src/net/torvald/terrarum/Point2d.kt

@@ -59,6 +59,13 @@ data class Point2d(var x: Double, var y: Double) : Cloneable {
 
     fun toDoubleArray() = doubleArrayOf(x, y)
 
+    fun apply(transformation: (Double, Double) -> Pair<Double, Double>): Point2d {
+        val translation = transformation(x, y)
+        this.x = translation.first
+        this.y = translation.second
+
+        return this
+    }
 }
 
 data class Point2i(var x: Int, var y: Int) {
@@ -79,4 +86,12 @@ data class Point2i(var x: Int, var y: Int) {
     operator fun minus(other: Point2i): Point2i {
         return Point2i(other.x - this.x, other.y - this.y)
     }
+
+    fun apply(transformation: (Int, Int) -> Pair<Int, Int>): Point2i {
+        val translation = transformation(x, y)
+        this.x = translation.first
+        this.y = translation.second
+
+        return this
+    }
 }

src/net/torvald/terrarum/blockstats/MinimapComposer.kt

@@ -1,5 +1,6 @@
 package net.torvald.terrarum.blockstats
 
+import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.graphics.Pixmap
 import com.badlogic.gdx.graphics.Texture
 import com.badlogic.gdx.utils.Disposable
@@ -73,8 +74,8 @@ object MinimapComposer : Disposable {
     fun update() {
         // make the queueing work
         // enqueue first
-        for (y in 0 until tilemap.size) {
-            for (x in 0 until tilemap[0].size) {
+        for (y in tilemap.indices) {
+            for (x in tilemap[0].indices) {
                 if (liveTilesMeta[tilemap[y][x]].revalidate) {
                     liveTilesMeta[tilemap[y][x]].revalidate = false
                     updaterQueue.addLast(createUpdater(x, y))
@@ -83,7 +84,7 @@ object MinimapComposer : Disposable {
             }
         }
         // consume the queue
-        for (k in 0 until currentThreads.size) {
+        for (k in currentThreads.indices) {
             if (currentThreads[k].state == Thread.State.TERMINATED && !updaterQueue.isEmpty) {
                 currentThreads[k] = Thread(updaterQueue.removeFirst(), "MinimapLivetilePainter")
                 printdbg(this, "Consuming from queue; queue size now: ${updaterQueue.size}")
@@ -139,11 +140,11 @@ object MinimapComposer : Disposable {
                 val colTerr = CreateTileAtlas.terrainTileColourMap.get(tileTerr % 16, tileTerr / 16)
                 val colWall = CreateTileAtlas.terrainTileColourMap.get(wallTerr % 16, wallTerr / 16).mul(BlocksDrawer.wallOverlayColour)
 
-                if (colTerr.a < 1f) {
-                    pixmap.setColor(colWall)
-                    pixmap.drawPixel(x - topLeftX, y - topLeftY)
-                }
-                pixmap.setColor(colTerr)
+                val outCol = if (colTerr.a > 0.1f) colTerr else colWall
+
+                pixmap.blending = Pixmap.Blending.None
+                pixmap.setColor(outCol)
+                //pixmap.setColor(Color.CORAL)
                 pixmap.drawPixel(x - topLeftX, y - topLeftY)
             }
         }

src/net/torvald/terrarum/concurrent/ThreadParallel.kt

@@ -1,9 +1,6 @@
 package net.torvald.terrarum.concurrent
 
-import java.util.concurrent.ExecutorService
-import java.util.concurrent.Executors
-import java.util.concurrent.Future
-import java.util.concurrent.TimeUnit
+import java.util.concurrent.*
 import kotlin.math.absoluteValue
 
 typealias RunnableFun = () -> Unit
@@ -14,32 +11,58 @@ typealias ThreadableFun = (Int) -> Unit
 object ThreadExecutor {
     val threadCount = Runtime.getRuntime().availableProcessors() // not using (logicalCores + 1) method; it's often better idea to reserve one extra thread for other jobs in the app
     private lateinit var executor: ExecutorService// = Executors.newFixedThreadPool(threadCount)
+    val futures = ArrayList<Future<*>>()
+    private var isOpen = true
 
     private fun checkShutdown() {
         try {
             if (executor.isTerminated)
                 throw IllegalStateException("Executor terminated, renew the executor service.")
-            if (executor.isShutdown)
+            if (!isOpen || executor.isShutdown)
                 throw IllegalStateException("Pool is closed, come back when all the threads are terminated.")
         }
         catch (e: UninitializedPropertyAccessException) {}
     }
 
     fun renew() {
+        try {
+            if (!executor.isTerminated && !executor.isShutdown) throw IllegalStateException("Pool is still running")
+        }
+        catch (_: UninitializedPropertyAccessException) {}
+
         executor = Executors.newFixedThreadPool(threadCount)
+        futures.clear()
+        isOpen = true
     }
 
-    fun submit(t: Runnable): Future<*> {
+    /*fun invokeAll(ts: List<Callable<Unit>>) {
         checkShutdown()
-        return executor.submit(t)
-    }
-    fun submit(f: RunnableFun): Future<*> {
-        checkShutdown()
-        return executor.submit { f() }
-    }
+        executor.invokeAll(ts)
+    }*/
 
+    fun submit(t: Callable<Unit>) {
+        checkShutdown()
+        val fut = executor.submit(t)
+        futures.add(fut)
+    }
+    /*fun submit(f: RunnableFun) {
+        checkShutdown()
+        val fut = executor.submit { f() }
+        futures.add(fut)
+    }*/
+
+    // https://stackoverflow.com/questions/28818494/threads-stopping-prematurely-for-certain-values
     fun join() {
         println("ThreadExecutor.join")
+        isOpen = false
+        futures.forEach {
+            try {
+                it.get()
+            }
+            catch (e: ExecutionException) {
+                throw e
+            }
+        }
         executor.shutdown() // thread status of completed ones will be WAIT instead of TERMINATED without this line...
         executor.awaitTermination(24L, TimeUnit.HOURS)
     }

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

@@ -407,7 +407,7 @@ open class TerrarumIngame(batch: SpriteBatch) : IngameInstance(batch) {
         }
         // scan for the one with non-null UI.
         // what if there's multiple of such fixtures? whatever, you are supposed to DISALLOW such situation.
-        for (kk in 0 until actorsUnderMouse.size) {
+        for (kk in actorsUnderMouse.indices) {
             actorsUnderMouse[kk].mainUI?.let {
                 uiOpened = true
 

src/net/torvald/terrarum/modulebasegame/gameworld/WorldSimulator.kt

@@ -378,8 +378,8 @@ object WorldSimulator {
     private val FALLABLE_MAX_FALL_SPEED = 2
 
     private fun monitorIllegalFluidSetup() {
-        for (y in 0 until fluidMap.size) {
-            for (x in 0 until fluidMap[0].size) {
+        for (y in fluidMap.indices) {
+            for (x in fluidMap[0].indices) {
                 val fluidData = world.getFluid(x + updateXFrom, y + updateYFrom)
                 if (fluidData.amount < 0f) {
                     throw InternalError("Negative amount of fluid at (${x + updateXFrom},${y + updateYFrom}): $fluidData")
@@ -391,8 +391,8 @@ object WorldSimulator {
     private fun makeFluidMapFromWorld() {
         //printdbg(this, "Scan area: ($updateXFrom,$updateYFrom)..(${updateXFrom + fluidMap[0].size},${updateYFrom + fluidMap.size})")
 
-        for (y in 0 until fluidMap.size) {
-            for (x in 0 until fluidMap[0].size) {
+        for (y in fluidMap.indices) {
+            for (x in fluidMap[0].indices) {
                 val fluidData = world.getFluid(x + updateXFrom, y + updateYFrom)
                 fluidMap[y][x] = fluidData.amount
                 fluidTypeMap[y][x] = fluidData.type
@@ -407,8 +407,8 @@ object WorldSimulator {
     }
 
     private fun fluidmapToWorld() {
-        for (y in 0 until fluidMap.size) {
-            for (x in 0 until fluidMap[0].size) {
+        for (y in fluidMap.indices) {
+            for (x in fluidMap[0].indices) {
                 world.setFluid(x + updateXFrom, y + updateYFrom, fluidNewTypeMap[y][x], fluidNewMap[y][x])
             }
         }

src/net/torvald/terrarum/modulebasegame/gameworld/WorldTime.kt

@@ -96,20 +96,20 @@ class WorldTime(initTime: Long = 0L) {
 
 
     // these functions won't need inlining for performance
-    val yearlyDays: Int // 0 - 119
+    val ordinalDay: Int // 0 - 119
         get() = (TIME_T.div(DAY_LENGTH) fmod YEAR_DAYS.toLong()).toInt()
-    val days: Int // 1 - 30 fixed
-        get() = (yearlyDays % MONTH_LENGTH) + 1
-    val months: Int // 1 - 4
-        get() = (yearlyDays / MONTH_LENGTH) + 1
+    val calendarDay: Int // 1 - 30 fixed
+        get() = (ordinalDay % MONTH_LENGTH) + 1
+    val calendarMonth: Int // 1 - 4
+        get() = (ordinalDay / MONTH_LENGTH) + 1
     val years: Int
         get() = TIME_T.div(YEAR_DAYS * DAY_LENGTH).abs().toInt() + EPOCH_YEAR
 
-    val quarter = months - 1 // 0 - 3
+    val quarter = calendarMonth - 1 // 0 - 3
 
 
     val dayOfWeek: Int //0: Mondag-The first day of weekday (0 - 7)
-        get() = if (yearlyDays == YEAR_DAYS - 1) 7 else yearlyDays % 7
+        get() = if (ordinalDay == YEAR_DAYS - 1) 7 else ordinalDay % 7
 
     var timeDelta: Int = 1
         set(value) {
@@ -206,17 +206,17 @@ class WorldTime(initTime: Long = 0L) {
     fun getFormattedTime() = "${getDayNameShort()}, " +
                              "$years " +
                              "${getMonthNameFull()} " +
-                             "$days " +
+                             "$calendarDay " +
                              "${String.format("%02d", hours)}:" +
                              "${String.format("%02d", minutes)}:" +
                              "${String.format("%02d", seconds)}"
-    fun getShortTime() = "${years.toString().padStart(4, '0')}-${getMonthNameShort()}-${days.toString().padStart(2, '0')}"
-    fun getFilenameTime() = "${years.toString().padStart(4, '0')}${months.toString().padStart(2, '0')}${days.toString().padStart(2, '0')}"
+    fun getShortTime() = "${years.toString().padStart(4, '0')}-${getMonthNameShort()}-${calendarDay.toString().padStart(2, '0')}"
+    fun getFilenameTime() = "${years.toString().padStart(4, '0')}${calendarMonth.toString().padStart(2, '0')}${calendarDay.toString().padStart(2, '0')}"
 
     fun getDayNameFull() = DAY_NAMES[dayOfWeek]
     fun getDayNameShort() = DAY_NAMES_SHORT[dayOfWeek]
-    fun getMonthNameFull() = MONTH_NAMES[months - 1]
-    fun getMonthNameShort() = MONTH_NAMES_SHORT[months - 1]
+    fun getMonthNameFull() = MONTH_NAMES[calendarMonth - 1]
+    fun getMonthNameShort() = MONTH_NAMES_SHORT[calendarMonth - 1]
 
     override fun toString() = getFormattedTime()
 }

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

@@ -307,7 +307,7 @@ package net.torvald.terrarum.modulebasegame.ui
             inventorySortList.sortBy { it.item.name }
 
             // map sortList to item list
-            for (k in 0 until items.size) {
+            for (k in items.indices) {
                 // we have an item
                 try {
                     val sortListItem = inventorySortList[k + itemPage * items.size]

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

@@ -31,8 +31,8 @@ internal class UIInventoryCells(
             UIItemInventoryDynamicList(
                     full,
                     full.actor.inventory,
-                    0 + (AppLoader.screenW - full.internalWidth) / 2,
-                    107 + (AppLoader.screenH - full.internalHeight) / 2,
+                    full.INVENTORY_CELLS_OFFSET_X,
+                    full.INVENTORY_CELLS_OFFSET_Y,
                     full.CELLS_HOR, full.CELLS_VRT
             )
 
@@ -43,7 +43,7 @@ internal class UIInventoryCells(
                     full.actor.inventory,
                     full.actor as ActorWithBody,
                     full.internalWidth - UIItemInventoryEquippedView.WIDTH + (AppLoader.screenW - full.internalWidth) / 2,
-                    107 + (AppLoader.screenH - full.internalHeight) / 2
+                    full.INVENTORY_CELLS_OFFSET_Y
             )
 
     init {

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

@@ -0,0 +1,76 @@
+package net.torvald.terrarum.modulebasegame.ui
+
+import com.badlogic.gdx.Gdx
+import com.badlogic.gdx.graphics.Camera
+import com.badlogic.gdx.graphics.Color
+import com.badlogic.gdx.graphics.g2d.SpriteBatch
+import net.torvald.terrarum.AppLoader
+import net.torvald.terrarum.TitleScreen
+import net.torvald.terrarum.blendNormal
+import net.torvald.terrarum.ui.UICanvas
+import net.torvald.terrarum.ui.UIItemTextButtonList
+import net.torvald.terrarum.ui.UIItemTextButtonList.Companion.DEFAULT_LINE_HEIGHT
+
+class UIInventoryEscMenu(val full: UIInventoryFull) : UICanvas() {
+
+    override var width: Int = AppLoader.screenW
+    override var height: Int = AppLoader.screenH
+    override var openCloseTime = 0.0f
+
+    private val gameMenu = arrayOf("MENU_LABEL_MAINMENU", "MENU_LABEL_DESKTOP", "MENU_OPTIONS_CONTROLS", "MENU_OPTIONS_SOUND", "MENU_LABEL_GRAPHICS")
+    private val gameMenuListHeight = DEFAULT_LINE_HEIGHT * gameMenu.size
+    private val gameMenuListWidth = 400
+    private val gameMenuButtons = UIItemTextButtonList(
+            this, gameMenu,
+            (AppLoader.screenW - gameMenuListWidth) / 2,
+            full.INVENTORY_CELLS_OFFSET_Y + (full.INVENTORY_CELLS_UI_HEIGHT - gameMenuListHeight) / 2,
+            gameMenuListWidth, gameMenuListHeight,
+            readFromLang = true,
+            textAreaWidth = gameMenuListWidth,
+            activeBackCol = Color(0),
+            highlightBackCol = Color(0),
+            backgroundCol = Color(0),
+            inactiveCol = Color.WHITE,
+            defaultSelection = null
+    )
+
+    init {
+        uiItems.add(gameMenuButtons)
+
+        gameMenuButtons.selectionChangeListener = { _, new ->
+            when (new) {
+                0 -> AppLoader.setScreen(TitleScreen(AppLoader.batch))
+                1 -> Gdx.app.exit()
+            }
+        }
+    }
+
+    override fun updateUI(delta: Float) {
+        gameMenuButtons.update(delta)
+    }
+
+    override fun renderUI(batch: SpriteBatch, camera: Camera) {
+        // control hints
+        blendNormal(batch)
+        batch.color = Color.WHITE
+        AppLoader.fontGame.draw(batch, full.gameMenuControlHelp, full.offsetX, full.yEnd - 20)
+
+        // text buttons
+        gameMenuButtons.render(batch, camera)
+    }
+
+    override fun doOpening(delta: Float) {
+    }
+
+    override fun doClosing(delta: Float) {
+    }
+
+    override fun endOpening(delta: Float) {
+    }
+
+    override fun endClosing(delta: Float) {
+    }
+
+    override fun dispose() {
+    }
+}

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

@@ -29,8 +29,6 @@ class UIInventoryFull(
         doNotWarnConstant: Boolean = false
 ) : UICanvas(toggleKeyLiteral, toggleButtonLiteral, customPositioning, doNotWarnConstant) {
 
-    private val debugvals = true
-    
     override var width: Int = AppLoader.screenW
     override var height: Int = AppLoader.screenH
     override var openCloseTime: Second = 0.0f
@@ -48,6 +46,10 @@ class UIInventoryFull(
 
     val itemListHeight: Int = CELLS_VRT * UIItemInventoryElemSimple.height + (CELLS_VRT - 1) * net.torvald.terrarum.modulebasegame.ui.UIItemInventoryDynamicList.Companion.listGap
 
+    val INVENTORY_CELLS_UI_HEIGHT = CELLS_VRT * UIItemInventoryElemSimple.height + (CELLS_VRT - 1) * UIItemInventoryDynamicList.listGap
+    val INVENTORY_CELLS_OFFSET_X = 0 + (AppLoader.screenW - internalWidth) / 2
+    val INVENTORY_CELLS_OFFSET_Y = 107 + (AppLoader.screenH - internalHeight) / 2
+
     init {
         handler.allowESCtoClose = true
         CommonResourcePool.addToLoadingList("inventory_caticons") {
@@ -111,13 +113,13 @@ class UIInventoryFull(
     )
 
 
-    private val transitionalMinimap = UIInventoryCells(this) // PLACEHOLDER
+    private val transitionalMinimap = UIInventoryMinimap(this) // PLACEHOLDER
     private val transitionalItemCells = UIInventoryCells(this)
-    private val transitionalEscMenu = UIInventoryCells(this) // PLACEHOLDER
+    private val transitionalEscMenu = UIInventoryEscMenu(this)
     private val transitionPanel = UIItemHorizontalFadeSlide(
             this,
             (AppLoader.screenW - internalWidth) / 2,
-            107 + (AppLoader.screenH - internalHeight) / 2,
+            INVENTORY_CELLS_OFFSET_Y,
             AppLoader.screenW,
             AppLoader.screenH,
             1f,
@@ -125,36 +127,9 @@ class UIInventoryFull(
     )
 
 
-    private val gameMenu = arrayOf("MENU_LABEL_MAINMENU", "MENU_LABEL_DESKTOP", "MENU_OPTIONS_CONTROLS", "MENU_OPTIONS_SOUND", "MENU_LABEL_GRAPHICS")
-    private val gameMenuListHeight = DEFAULT_LINE_HEIGHT * gameMenu.size
-    private val gameMenuListWidth = 400
-    private val gameMenuButtons = UIItemTextButtonList(
-            this, gameMenu,
-            (AppLoader.screenW - gameMenuListWidth) / 2,
-            (transitionalItemCells.itemList.height - gameMenuListHeight) / 2 + transitionalItemCells.itemList.posY,
-            gameMenuListWidth, gameMenuListHeight,
-            readFromLang = true,
-            textAreaWidth = gameMenuListWidth,
-            activeBackCol = Color(0),
-            highlightBackCol = Color(0),
-            backgroundCol = Color(0),
-            inactiveCol = Color.WHITE,
-            defaultSelection = null
-    )
-
-    private val SCREEN_MINIMAP = 0f
-    private val SCREEN_INVENTORY = 1f
-    private val SCREEN_MENU = 2f
-
-
-
-
     init {
         addUIitem(categoryBar)
         addUIitem(transitionPanel)
-        //itemList.let { addUIitem(it) }
-        //equipped.let { addUIitem(it) }
-
 
         categoryBar.selectionChangeListener = { old, new  ->
             rebuildList()
@@ -164,15 +139,6 @@ class UIInventoryFull(
 
         rebuildList()
 
-        // make gameMenuButtons work
-        gameMenuButtons.selectionChangeListener = { old, new ->
-            if (new == 0) {
-                AppLoader.setScreen(TitleScreen(AppLoader.batch))
-            }
-            else if (new == 1) {
-                Gdx.app.exit()
-            }
-        }
 
     }
 
@@ -188,29 +154,8 @@ class UIInventoryFull(
             rebuildList()
         }
 
-
         categoryBar.update(delta)
         transitionPanel.update(delta)
-
-
-        // update map while visible
-        /*if (currentScreenTransition > 1f + epsilon) {
-            MinimapComposer.setWorld(Terrarum.ingame!!.world)
-            MinimapComposer.update()
-        }*/
-
-        // update inventory while visible
-        /*if (currentScreenTransition in epsilon..2f - epsilon) {
-            itemList.update(delta)
-            equipped.update(delta)
-        }*/
-
-        // update menu while visible
-        /*if (currentScreenTransition < 1f - epsilon) {
-            gameMenuButtons.update(delta)
-        }*/
-
-        minimapRerenderTimer += Gdx.graphics.rawDeltaTime
     }
 
     private val gradStartCol = Color(0x404040_60)
@@ -223,18 +168,6 @@ class UIInventoryFull(
     internal var yEnd = (AppLoader.screenH + internalHeight).div(2).toFloat()
         private set
 
-    private var minimapRerenderTimer = 0f
-    private val minimapRerenderInterval = .5f
-
-    // TODO implemented on UIItemTransitionContainer
-    /*fun requestTransition(target: Int) {
-        if (!transitionOngoing) {
-            transitionRequested = true
-            transitionReqSource = currentScreenTransition.round()
-            transitionReqTarget = target.toFloat()
-        }
-    }*/
-
     override fun renderUI(batch: SpriteBatch, camera: Camera) {
 
 
@@ -262,252 +195,8 @@ class UIInventoryFull(
         // UI items
         categoryBar.render(batch, camera)
         transitionPanel.render(batch, camera)
-
-        // render map while visible
-        /*if (currentScreenTransition > 1f + epsilon) {
-            renderScreenMinimap(batch, camera)
-
-            if (debugvals) {
-                batch.color = Color.CORAL
-                AppLoader.fontSmallNumbers.draw(batch, "Map", 300f, 10f)
-            }
-        }*/
-
-        // render inventory while visible
-        /*if (currentScreenTransition in epsilon..2f - epsilon) {
-            renderScreenInventory(batch, camera)
-
-            if (debugvals) {
-                batch.color = Color.CHARTREUSE
-                AppLoader.fontSmallNumbers.draw(batch, "Inv", 350f, 10f)
-            }
-        }*/
-
-        // render menu while visible
-        /*if (currentScreenTransition < 1f - epsilon) {
-            renderScreenGamemenu(batch, camera)
-
-            if (debugvals) {
-                batch.color = Color.SKY
-                AppLoader.fontSmallNumbers.draw(batch, "Men", 400f, 10f)
-            }
-        }*/
-
-        /*if (debugvals) {
-            batch.color = Color.WHITE
-            AppLoader.fontSmallNumbers.draw(batch, "minimap:$minimapScrOffX", 500f, 0f)
-            AppLoader.fontSmallNumbers.draw(batch, "inven:$inventoryScrOffX", 500f, 10f)
-            AppLoader.fontSmallNumbers.draw(batch, "menu:$menuScrOffX", 500f, 20f)
-        }*/
-
-
     }
 
-    private val epsilon = 0.001f
-
-    /**
-     * - 0 on inventory screen
-     * - +WIDTH on minimap screen
-     * - -WIDTH on gamemenu screen
-     */
-    /*private val minimapScrOffX: Float
-        get() = (currentScreenTransition - 2f) * AppLoader.screenW / 2f
-    private val inventoryScrOffX: Float
-        get() = (currentScreenTransition - 1f) * AppLoader.screenW / 2f
-    private val menuScrOffX: Float
-        get() = (currentScreenTransition - 0f) * AppLoader.screenW / 2f
-
-    private val minimapScrOpacity: Float
-        get() = (currentScreenTransition - 2f).coerceIn(0f, 1f)
-    private val inventoryScrOpacity: Float
-        get() = (currentScreenTransition - 1f).coerceIn(0f, 1f)
-    private val menuScrOpacity: Float
-        get() = (currentScreenTransition - 0f).coerceIn(0f, 1f)*/
-
-    //private val MINIMAP_WIDTH = 800f
-    //private val MINIMAP_HEIGHT = itemList.height.toFloat()
-    //private val MINIMAP_SKYCOL = Color(0x88bbddff.toInt())
-    //private var minimapZoom = 1f
-    //private var minimapPanX = -MinimapComposer.totalWidth / 2f
-    //private var minimapPanY = -MinimapComposer.totalHeight / 2f
-    //private val MINIMAP_ZOOM_MIN = 0.5f
-    //private val MINIMAP_ZOOM_MAX = 8f
-    //private val minimapFBO = FrameBuffer(Pixmap.Format.RGBA8888, MINIMAP_WIDTH.toInt(), MINIMAP_HEIGHT.toInt(), false)
-    //private val minimapCamera = OrthographicCamera(MINIMAP_WIDTH, MINIMAP_HEIGHT)
-
-
-    // TODO put 3 bare sub-UIs into proper UIcanvas to handle the motherfucking opacity
-
-    // TODO not yet refactored
-    /*private fun renderScreenMinimap(batch: SpriteBatch, camera: Camera) {
-        blendNormal(batch)
-
-        // update map panning
-        if (currentScreenTransition >= 2f - epsilon) {
-            // if left click is down and cursor is in the map area
-            if (Gdx.input.isButtonPressed(AppLoader.getConfigInt("mouseprimary")) &&
-                Terrarum.mouseScreenY in itemList.posY..itemList.posY + itemList.height) {
-                minimapPanX += Terrarum.mouseDeltaX / minimapZoom
-                minimapPanY += Terrarum.mouseDeltaY / minimapZoom
-            }
-
-
-            if (Gdx.input.isKeyPressed(Input.Keys.NUM_1)) {
-                minimapZoom *= (1f / 1.02f)
-            }
-            if (Gdx.input.isKeyPressed(Input.Keys.NUM_2)) {
-                minimapZoom *= 1.02f
-            }
-            if (Gdx.input.isKeyPressed(Input.Keys.NUM_3)) {
-                minimapZoom = 1f
-                minimapPanX = -MinimapComposer.totalWidth / 2f
-                minimapPanY = -MinimapComposer.totalHeight / 2f
-            }
-
-
-            try {
-                //minimapPanX = minimapPanX.coerceIn(-(MinimapComposer.totalWidth * minimapZoom) + MINIMAP_WIDTH, 0f) // un-comment this line to constain the panning over x-axis
-            } catch (e: IllegalArgumentException) { }
-            try {
-                //minimapPanY = minimapPanY.coerceIn(-(MinimapComposer.totalHeight * minimapZoom) + MINIMAP_HEIGHT, 0f)
-            } catch (e: IllegalArgumentException) { }
-            minimapZoom = minimapZoom.coerceIn(MINIMAP_ZOOM_MIN, MINIMAP_ZOOM_MAX)
-
-
-            // make image to roll over for x-axis. This is for the ROUNDWORLD implementation, feel free to remove below.
-
-        }
-
-
-        // render minimap
-        batch.end()
-
-        if (minimapRerenderTimer >= minimapRerenderInterval) {
-            minimapRerenderTimer = 0f
-            MinimapComposer.requestRender()
-        }
-
-        MinimapComposer.renderToBackground()
-
-        minimapFBO.inAction(minimapCamera, batch) {
-            // whatever.
-            MinimapComposer.tempTex.dispose()
-            MinimapComposer.tempTex = Texture(MinimapComposer.minimap)
-            MinimapComposer.tempTex.setFilter(Texture.TextureFilter.Linear, Texture.TextureFilter.Nearest)
-
-            batch.inUse {
-
-                // [  1  0 0 ]   [  s   0  0 ]   [  s  0 0 ]
-                // [  0  1 0 ] x [  0   s  0 ] = [  0  s 0 ]
-                // [ px py 1 ]   [ w/2 h/2 1 ]   [ tx ty 1 ]
-                //
-                // https://www.wolframalpha.com/input/?i=%7B%7B1,0,0%7D,%7B0,1,0%7D,%7Bp_x,p_y,1%7D%7D+*+%7B%7Bs,0,0%7D,%7B0,s,0%7D,%7Bw%2F2,h%2F2,1%7D%7D
-
-                val tx = minimapPanX * minimapZoom + 0.5f * MINIMAP_WIDTH
-                val ty = minimapPanY * minimapZoom + 0.5f * MINIMAP_HEIGHT
-
-                // sky background
-                batch.color = MINIMAP_SKYCOL
-                batch.fillRect(0f, 0f, MINIMAP_WIDTH, MINIMAP_HEIGHT)
-                // the actual image
-                batch.color = Color.WHITE
-                batch.draw(MinimapComposer.tempTex, tx, ty + MinimapComposer.totalHeight * minimapZoom, MinimapComposer.totalWidth * minimapZoom, -MinimapComposer.totalHeight * minimapZoom)
-
-            }
-        }
-        batch.begin()
-
-        if (debugvals) {
-            AppLoader.fontSmallNumbers.draw(batch, "$minimapPanX, $minimapPanY; x$minimapZoom", minimapScrOffX + (AppLoader.screenW - MINIMAP_WIDTH) / 2, -10f + itemList.posY)
-        }
-
-        batch.projectionMatrix = camera.combined
-        // 1px stroke
-        batch.color = Color.WHITE
-        batch.fillRect(-1 + minimapScrOffX + (AppLoader.screenW - MINIMAP_WIDTH) / 2, -1 + itemList.posY.toFloat(), 2 + MINIMAP_WIDTH, 2 + MINIMAP_HEIGHT)
-
-        // control hints
-        batch.color = Color.WHITE
-        AppLoader.fontGame.draw(batch, minimapControlHelp, offsetX + minimapScrOffX, yEnd - 20)
-
-        // the minimap
-        batch.draw(minimapFBO.colorBufferTexture, minimapScrOffX + (AppLoader.screenW - MINIMAP_WIDTH) / 2, itemList.posY.toFloat())
-    }*/
-
-    // TODO not yet refactored
-    /*private fun renderScreenGamemenu(batch: SpriteBatch, camera: Camera) {
-        // control hints
-        blendNormal(batch)
-        batch.color = Color.WHITE
-        AppLoader.fontGame.draw(batch, gameMenuControlHelp, offsetX + menuScrOffX, yEnd - 20)
-
-        // text buttons
-        gameMenuButtons.posX = gameMenuButtons.initialX + menuScrOffX.roundToInt()
-        gameMenuButtons.render(batch, camera)
-    }*/
-
-    // TODO refactoring wip
-    /*private fun renderScreenInventory(batch: SpriteBatch, camera: Camera) {
-        itemList.posX = itemList.initialX + inventoryScrOffX.roundToInt()
-        itemList.render(batch, camera)
-        equipped.posX = equipped.initialX + inventoryScrOffX.roundToInt()
-        equipped.render(batch, camera)
-
-
-        // control hints
-        val controlHintXPos = offsetX + inventoryScrOffX
-        blendNormal(batch)
-        batch.color = Color.WHITE
-        AppLoader.fontGame.draw(batch, listControlHelp, controlHintXPos, yEnd - 20)
-
-
-        // encumbrance meter
-        val encumbranceText = Lang["GAME_INVENTORY_ENCUMBRANCE"]
-        // encumbrance bar will go one row down if control help message is too long
-        val encumbBarXPos = xEnd - weightBarWidth + inventoryScrOffX
-        val encumbBarTextXPos = encumbBarXPos - 6 - AppLoader.fontGame.getWidth(encumbranceText)
-        val encumbBarYPos = yEnd-20 + 3f +
-                            if (AppLoader.fontGame.getWidth(listControlHelp) + 2 + controlHintXPos >= encumbBarTextXPos)
-                                AppLoader.fontGame.lineHeight
-                            else 0f
-        
-        AppLoader.fontGame.draw(batch,
-                encumbranceText,
-                encumbBarTextXPos,
-                encumbBarYPos - 3f
-        )
-
-        // encumbrance bar background
-        blendNormal(batch)
-        val encumbCol = UIItemInventoryCellCommonRes.getHealthMeterColour(1f - encumbrancePerc, 0f, 1f)
-        val encumbBack = encumbCol mul UIItemInventoryCellCommonRes.meterBackDarkening
-        batch.color = encumbBack
-        batch.fillRect(
-                encumbBarXPos, encumbBarYPos,
-                weightBarWidth, controlHelpHeight - 6f
-        )
-        // encumbrance bar
-        batch.color = encumbCol
-        batch.fillRect(
-                encumbBarXPos, encumbBarYPos,
-                if (actor.inventory.capacityMode == CAPACITY_MODE_NO_ENCUMBER)
-                    1f
-                else // make sure 1px is always be seen
-                    minOf(weightBarWidth, maxOf(1f, weightBarWidth * encumbrancePerc)),
-                controlHelpHeight - 6f
-        )
-        // debug text
-        batch.color = Color.LIGHT_GRAY
-        if (IS_DEVELOPMENT_BUILD) {
-            AppLoader.fontSmallNumbers.draw(batch,
-                    "${actor.inventory.capacity}/${actor.inventory.maxCapacity}",
-                    encumbBarTextXPos,
-                    encumbBarYPos + controlHelpHeight - 4f
-            )
-        }
-    }*/
-
-
     fun rebuildList() {
         transitionalItemCells.rebuildList()
     }

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

@@ -0,0 +1,146 @@
+package net.torvald.terrarum.modulebasegame.ui
+
+import com.badlogic.gdx.Gdx
+import com.badlogic.gdx.Input
+import com.badlogic.gdx.graphics.*
+import com.badlogic.gdx.graphics.g2d.SpriteBatch
+import com.badlogic.gdx.graphics.glutils.FrameBuffer
+import net.torvald.terrarum.*
+import net.torvald.terrarum.blockstats.MinimapComposer
+import net.torvald.terrarum.ui.UICanvas
+
+class UIInventoryMinimap(val full: UIInventoryFull) : UICanvas() {
+
+    private val debugvals = true
+
+    override var width: Int = AppLoader.screenW
+    override var height: Int = AppLoader.screenH
+    override var openCloseTime = 0.0f
+
+    private val MINIMAP_WIDTH = 800f
+    private val MINIMAP_HEIGHT = full.INVENTORY_CELLS_UI_HEIGHT.toFloat()
+    private val MINIMAP_SKYCOL = Color(0x88bbddff.toInt())
+    private var minimapZoom = 1f
+    private var minimapPanX = -MinimapComposer.totalWidth / 2f
+    private var minimapPanY = -MinimapComposer.totalHeight / 2f
+    private val MINIMAP_ZOOM_MIN = 0.5f
+    private val MINIMAP_ZOOM_MAX = 8f
+    private val minimapFBO = FrameBuffer(Pixmap.Format.RGBA8888, MINIMAP_WIDTH.toInt(), MINIMAP_HEIGHT.toInt(), false)
+    private val minimapCamera = OrthographicCamera(MINIMAP_WIDTH, MINIMAP_HEIGHT)
+
+    private var minimapRerenderTimer = 0f
+    private val minimapRerenderInterval = .5f
+
+    override fun updateUI(delta: Float) {
+        MinimapComposer.setWorld(Terrarum.ingame!!.world)
+        MinimapComposer.update()
+        minimapRerenderTimer += Gdx.graphics.rawDeltaTime
+    }
+
+    override fun renderUI(batch: SpriteBatch, camera: Camera) {
+        blendNormal(batch)
+
+        // update map panning
+        // if left click is down and cursor is in the map area
+        if (Gdx.input.isButtonPressed(AppLoader.getConfigInt("mouseprimary")) &&
+            Terrarum.mouseScreenY in full.INVENTORY_CELLS_OFFSET_Y..full.INVENTORY_CELLS_OFFSET_Y + full.INVENTORY_CELLS_UI_HEIGHT) {
+            minimapPanX += Terrarum.mouseDeltaX * 2f / minimapZoom
+            minimapPanY += Terrarum.mouseDeltaY * 2f / minimapZoom
+        }
+
+
+        if (Gdx.input.isKeyPressed(Input.Keys.NUM_1)) {
+            minimapZoom *= (1f / 1.02f)
+        }
+        if (Gdx.input.isKeyPressed(Input.Keys.NUM_2)) {
+            minimapZoom *= 1.02f
+        }
+        if (Gdx.input.isKeyPressed(Input.Keys.NUM_3)) {
+            minimapZoom = 1f
+            minimapPanX = -MinimapComposer.totalWidth / 2f
+            minimapPanY = -MinimapComposer.totalHeight / 2f
+        }
+
+
+        try {
+            //minimapPanX = minimapPanX.coerceIn(-(MinimapComposer.totalWidth * minimapZoom) + MINIMAP_WIDTH, 0f) // un-comment this line to constain the panning over x-axis
+        } catch (e: IllegalArgumentException) { }
+        try {
+            //minimapPanY = minimapPanY.coerceIn(-(MinimapComposer.totalHeight * minimapZoom) + MINIMAP_HEIGHT, 0f)
+        } catch (e: IllegalArgumentException) { }
+        minimapZoom = minimapZoom.coerceIn(MINIMAP_ZOOM_MIN, MINIMAP_ZOOM_MAX)
+
+
+        // make image to roll over for x-axis. This is for the ROUNDWORLD implementation, feel free to remove below.
+
+
+        // render minimap
+        batch.end()
+
+        if (minimapRerenderTimer >= minimapRerenderInterval) {
+            minimapRerenderTimer = 0f
+            MinimapComposer.requestRender()
+        }
+
+        MinimapComposer.renderToBackground()
+
+        minimapFBO.inAction(minimapCamera, batch) {
+            // whatever.
+            MinimapComposer.tempTex.dispose()
+            MinimapComposer.tempTex = Texture(MinimapComposer.minimap)
+            MinimapComposer.tempTex.setFilter(Texture.TextureFilter.Linear, Texture.TextureFilter.Nearest)
+
+            batch.inUse {
+
+                // [  1  0 0 ]   [  s   0  0 ]   [  s  0 0 ]
+                // [  0  1 0 ] x [  0   s  0 ] = [  0  s 0 ]
+                // [ px py 1 ]   [ w/2 h/2 1 ]   [ tx ty 1 ]
+                //
+                // https://www.wolframalpha.com/input/?i=%7B%7B1,0,0%7D,%7B0,1,0%7D,%7Bp_x,p_y,1%7D%7D+*+%7B%7Bs,0,0%7D,%7B0,s,0%7D,%7Bw%2F2,h%2F2,1%7D%7D
+
+                val tx = minimapPanX * minimapZoom + 0.5f * MINIMAP_WIDTH
+                val ty = minimapPanY * minimapZoom + 0.5f * MINIMAP_HEIGHT
+
+                // sky background
+                batch.color = MINIMAP_SKYCOL
+                batch.fillRect(0f, 0f, MINIMAP_WIDTH, MINIMAP_HEIGHT)
+                // the actual image
+                batch.color = Color.WHITE
+                batch.draw(MinimapComposer.tempTex, tx, ty + MinimapComposer.totalHeight * minimapZoom, MinimapComposer.totalWidth * minimapZoom, -MinimapComposer.totalHeight * minimapZoom)
+
+            }
+        }
+        batch.begin()
+
+        if (debugvals) {
+            AppLoader.fontSmallNumbers.draw(batch, "$minimapPanX, $minimapPanY; x$minimapZoom", (AppLoader.screenW - MINIMAP_WIDTH) / 2, -10f + full.INVENTORY_CELLS_OFFSET_Y)
+        }
+
+        batch.projectionMatrix = camera.combined
+        // 1px stroke
+        batch.color = Color.WHITE
+        batch.fillRect((AppLoader.screenW - MINIMAP_WIDTH) / 2, -1 + full.INVENTORY_CELLS_OFFSET_Y.toFloat(), MINIMAP_WIDTH, 1f)
+        batch.fillRect((AppLoader.screenW - MINIMAP_WIDTH) / 2, full.INVENTORY_CELLS_OFFSET_Y + MINIMAP_HEIGHT, MINIMAP_WIDTH, 1f)
+        batch.fillRect(-1 + (AppLoader.screenW - MINIMAP_WIDTH) / 2, full.INVENTORY_CELLS_OFFSET_Y.toFloat(), 1f, MINIMAP_HEIGHT)
+        batch.fillRect((AppLoader.screenW - MINIMAP_WIDTH) / 2 + MINIMAP_WIDTH, full.INVENTORY_CELLS_OFFSET_Y.toFloat(), 1f, MINIMAP_HEIGHT)
+
+        // control hints
+        batch.color = Color.WHITE
+        AppLoader.fontGame.draw(batch, full.minimapControlHelp, full.offsetX, full.yEnd - 20)
+
+        // the minimap
+        batch.draw(minimapFBO.colorBufferTexture, (AppLoader.screenW - MINIMAP_WIDTH) / 2, full.INVENTORY_CELLS_OFFSET_Y.toFloat())
+    }
+
+    override fun doOpening(delta: Float) {}
+
+    override fun doClosing(delta: Float) {}
+
+    override fun endOpening(delta: Float) {}
+
+    override fun endClosing(delta: Float) {}
+
+    override fun dispose() {
+        minimapFBO.dispose()
+    }
+}

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

@@ -353,7 +353,7 @@ class UIItemInventoryDynamicList(
         inventorySortList.sortBy { ItemCodex[it.item]!!.name }
 
         // map sortList to item list
-        for (k in 0 until items.size) {
+        for (k in items.indices) {
             // we have an item
             try {
                 val sortListItem = inventorySortList[k + itemPage * items.size]
@@ -372,7 +372,7 @@ class UIItemInventoryDynamicList(
                 }
 
                 // set equippedslot number
-                for (eq in 0 until inventory.itemEquipped.size) {
+                for (eq in inventory.itemEquipped.indices) {
                     if (eq < inventory.itemEquipped.size) {
                         if (inventory.itemEquipped[eq] == items[k].item?.dynamicID) {
                             items[k].equippedSlot = eq

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

@@ -118,7 +118,7 @@ class UIItemInventoryEquippedView(
         // sort by equip position
 
         // fill the grid from fastest index, make no gap in-between of slots
-        for (k in 0 until itemGrid.size) {
+        for (k in itemGrid.indices) {
             val item = inventory.itemEquipped[k]
 
             if (item == null) {

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

@@ -76,7 +76,7 @@ class UITierOneWatch(private val player: ActorHumanoid?) : UICanvas() {
         watchFont.draw(batch, worldTime.getDayNameShort().toUpperCase(), 73f, 7f)
 
         // day
-        watchFont.draw(batch, worldTime.days.toString().padStart(2, '@'), 107f, 7f)
+        watchFont.draw(batch, worldTime.calendarDay.toString().padStart(2, '@'), 107f, 7f)
 
         // hour
         watchFont.draw(batch, worldTime.hours.toString().padStart(2, '@'), 27f, 7f)
@@ -84,7 +84,7 @@ class UITierOneWatch(private val player: ActorHumanoid?) : UICanvas() {
         watchFont.draw(batch, worldTime.minutes.toString().padStart(2, '0'), 49f, 7f)
 
         // season marker
-        batch.draw(atlas.get(1, worldTime.months - 1), 0f, 0f)
+        batch.draw(atlas.get(1, worldTime.calendarMonth - 1), 0f, 0f)
 
 
         // moon dial

src/net/torvald/terrarum/modulebasegame/weather/WeatherMixer.kt

@@ -300,13 +300,13 @@ internal object WeatherMixer : RNGConsumer {
 
         var mixFrom: String?
         try { mixFrom = JSON.get("mixFrom").asJsonPrimitive.asString }
-        catch (e: IllegalStateException) { mixFrom = null }
+        catch (e: NullPointerException) { mixFrom = null }
 
 
 
         var mixPercentage: Double?
         try { mixPercentage = JSON.get("mixPercentage").asJsonPrimitive.asDouble }
-        catch (e: IllegalStateException) { mixPercentage = null }
+        catch (e: NullPointerException) { mixPercentage = null }
 
 
 

src/net/torvald/terrarum/modulebasegame/worldgenerator/Biomegen.kt

@@ -23,21 +23,13 @@ class Biomegen(world: GameWorld, seed: Long, params: Any) : Gen(world, seed, par
 
     private val genSlices = maxOf(ThreadExecutor.threadCount, world.width / 8)
 
-    private var genFutures: Array<Future<*>?> = arrayOfNulls(genSlices)
-    override var generationStarted: Boolean = false
-    override val generationDone: Boolean
-        get() = generationStarted && genFutures.fold(true) { acc, f -> acc and (f?.isDone ?: true) }
-
     private val YHEIGHT_MAGIC = 2800.0 / 3.0
     private val YHEIGHT_DIVISOR = 2.0 / 7.0
 
-    override fun run() {
-
-        generationStarted = true
-
+    override fun getDone() {
         ThreadExecutor.renew()
-        (0 until world.width).sliceEvenly(genSlices).mapIndexed { i, xs ->
-            genFutures[i] = ThreadExecutor.submit {
+        (0 until world.width).sliceEvenly(genSlices).map { xs ->
+            ThreadExecutor.submit {
                 val localJoise = getGenerator(seed, params as BiomegenParams)
                 for (x in xs) {
                     for (y in 0 until world.height) {

src/net/torvald/terrarum/modulebasegame/worldgenerator/Terragen.kt

@@ -20,33 +20,28 @@ class Terragen(world: GameWorld, seed: Long, params: Any) : Gen(world, seed, par
 
     private val genSlices = maxOf(ThreadExecutor.threadCount, world.width / 8)
 
-    private var genFutures: Array<Future<*>?> = arrayOfNulls(genSlices)
-    override var generationStarted: Boolean = false
-    override val generationDone: Boolean
-        get() = generationStarted && genFutures.fold(true) { acc, f -> acc and (f?.isDone ?: true) }
-
     private val YHEIGHT_MAGIC = 2800.0 / 3.0
     private val YHEIGHT_DIVISOR = 2.0 / 7.0
 
-    override fun run() {
-
-        generationStarted = true
-
+    override fun getDone() {
         ThreadExecutor.renew()
         (0 until world.width).sliceEvenly(genSlices).mapIndexed { i, xs ->
-            genFutures[i] = ThreadExecutor.submit {
+            ThreadExecutor.submit {
                 val localJoise = getGenerator(seed, params as TerragenParams)
-                for (x in xs) {
-                    for (y in 0 until world.height) {
-                        val sampleTheta = (x.toDouble() / world.width) * TWO_PI
-                        val sampleOffset = world.width / 8.0
-                        val sampleX = sin(sampleTheta) * sampleOffset + sampleOffset // plus sampleOffset to make only
-                        val sampleZ = cos(sampleTheta) * sampleOffset + sampleOffset // positive points are to be sampled
-                        val sampleY = y - (world.height - YHEIGHT_MAGIC) * YHEIGHT_DIVISOR // Q&D offsetting to make ratio of sky:ground to be constant
-                        // DEBUG NOTE: it is the OFFSET FROM THE IDEAL VALUE (observed land height - (HEIGHT * DIVISOR)) that must be constant
-                        val noise = localJoise.map { it.get(sampleX, sampleY, sampleZ) }
+                val localLock = java.lang.Object() // in an attempt to fix the "premature exit" issue of a thread run
+                synchronized(localLock) {          // also see: https://stackoverflow.com/questions/28818494/threads-stopping-prematurely-for-certain-values
+                    for (x in xs) {
+                        for (y in 0 until world.height) {
+                            val sampleTheta = (x.toDouble() / world.width) * TWO_PI
+                            val sampleOffset = world.width / 8.0
+                            val sampleX = sin(sampleTheta) * sampleOffset + sampleOffset // plus sampleOffset to make only
+                            val sampleZ = cos(sampleTheta) * sampleOffset + sampleOffset // positive points are to be sampled
+                            val sampleY = y - (world.height - YHEIGHT_MAGIC) * YHEIGHT_DIVISOR // Q&D offsetting to make ratio of sky:ground to be constant
+                            // DEBUG NOTE: it is the OFFSET FROM THE IDEAL VALUE (observed land height - (HEIGHT * DIVISOR)) that must be constant
+                            val noise = localJoise.map { it.get(sampleX, sampleY, sampleZ) }
 
-                        draw(x, y, noise, world)
+                            draw(x, y, noise, world)
+                        }
                     }
                 }
             }

src/net/torvald/terrarum/modulebasegame/worldgenerator/Worldgen.kt

@@ -3,6 +3,7 @@ package net.torvald.terrarum.modulebasegame.worldgenerator
 import net.torvald.terrarum.AppLoader
 import net.torvald.terrarum.AppLoader.printdbg
 import net.torvald.terrarum.gameworld.GameWorld
+import java.util.concurrent.Callable
 
 /**
  * New world generator.
@@ -34,7 +35,7 @@ object Worldgen {
             val it = jobs[i]
 
             AppLoader.getLoadScreen().addMessage(it.loadingScreenName)
-            it.theWork.run()
+            it.theWork.getDone()
         }
 
         printdbg(this, "Generation job finished")
@@ -46,9 +47,7 @@ object Worldgen {
 }
 
 abstract class Gen(val world: GameWorld, val seed: Long, val params: Any) {
-    abstract var generationStarted: Boolean
-    abstract val generationDone: Boolean
-    open fun run() { }
+    open fun getDone() { } // trying to use different name so that it won't be confused with Runnable or Callable
 }
 
 data class WorldgenParams(

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

@@ -153,7 +153,7 @@ internal object ReadLayerDataLzma {
         val fluidFills = HashMap<BlockAddress, Float>()
 
         // parse terrain damages
-        for (c in 0 until payloadBytes["TdMG"]!!.size step 10) {
+        for (c in payloadBytes["TdMG"]!!.indices step 10) {
             val bytes = payloadBytes["TdMG"]!!
 
             val tileAddr = bytes.sliceArray(c..c+5)
@@ -164,7 +164,7 @@ internal object ReadLayerDataLzma {
 
 
         // parse wall damages
-        for (c in 0 until payloadBytes["WdMG"]!!.size step 10) {
+        for (c in payloadBytes["WdMG"]!!.indices step 10) {
             val bytes = payloadBytes["WdMG"]!!
 
             val tileAddr = bytes.sliceArray(c..c+5)

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

@@ -154,7 +154,7 @@ internal object ReadLayerDataZip {
         val fluidFills = HashMap<BlockAddress, Float>()
 
         // parse terrain damages
-        for (c in 0 until payloadBytes["TdMG"]!!.size step 10) {
+        for (c in payloadBytes["TdMG"]!!.indices step 10) {
             val bytes = payloadBytes["TdMG"]!!
 
             val tileAddr = bytes.sliceArray(c..c+5)
@@ -165,7 +165,7 @@ internal object ReadLayerDataZip {
 
 
         // parse wall damages
-        for (c in 0 until payloadBytes["WdMG"]!!.size step 10) {
+        for (c in payloadBytes["WdMG"]!!.indices step 10) {
             val bytes = payloadBytes["WdMG"]!!
 
             val tileAddr = bytes.sliceArray(c..c+5)

src/net/torvald/terrarum/tests/RGBtoXYZBenchmark.kt

@@ -53,7 +53,7 @@ class RGBtoXYZBenchmark {
 
         // print out captured data
         println("with LUT\tno LUT\tmult")
-        for (i in 0 until timer1.size) {
+        for (i in timer1.indices) {
             println("${timer1[i]}\t${timer2[i]}\t${timer1[i].toFloat() / timer2[i]}")
         }
     }

src/net/torvald/terrarum/ui/UIHandler.kt

@@ -130,7 +130,7 @@ void main() {
 
     val mouseUp: Boolean
         get() {
-            for (k in 0 until subUIs.size) {
+            for (k in subUIs.indices) {
                 val ret2 = subUIs[k].mouseUp
                 if (ret2) return true
             }

src/net/torvald/terrarum/worlddrawer/BlocksDrawerNew.kt

@@ -410,7 +410,7 @@ internal object BlocksDrawer {
         val nearbyTiles = getNearbyTilesPos(x, y).map { world.getTileFrom(mode, it.x, it.y) ?: Block.NULL }
 
         var ret = 0
-        for (i in 0 until nearbyTiles.size) {
+        for (i in nearbyTiles.indices) {
             if (nearbyTiles[i] == mark) {
                 ret += (1 shl i) // add 1, 2, 4, 8 for i = 0, 1, 2, 3
             }
@@ -429,7 +429,7 @@ internal object BlocksDrawer {
         val nearbyTiles = getNearbyTilesPos(x, y).map { world.getWiringBlocks(it.x, it.y).and(drawWires).toBitOrd() * 16 }
 
         var ret = 0
-        for (i in 0 until nearbyTiles.size) {
+        for (i in nearbyTiles.indices) {
             if (nearbyTiles[i] == wire) {
                 ret += (1 shl i) // add 1, 2, 4, 8 for i = 0, 1, 2, 3
             }
@@ -442,7 +442,7 @@ internal object BlocksDrawer {
         val nearbyTiles = getNearbyTilesPos(x, y).map { world.getTileFrom(mode, it.x, it.y) ?: Block.NULL }
 
         var ret = 0
-        for (i in 0 until nearbyTiles.size) {
+        for (i in nearbyTiles.indices) {
             if (BlockCodex[nearbyTiles[i]].isSolid) {
                 ret += (1 shl i) // add 1, 2, 4, 8 for i = 0, 1, 2, 3
             }
@@ -459,7 +459,7 @@ internal object BlocksDrawer {
         val nearbyTiles = nearbyPos.map { world.getTileFromTerrain(it.x, it.y) ?: Block.NULL }
 
         var ret = 0
-        for (i in 0 until nearbyTiles.size) {
+        for (i in nearbyTiles.indices) {
             val fluid = world.getFluid(nearbyPos[i].x, nearbyPos[i].y)
             if (BlockCodex[nearbyTiles[i]].isSolid || (fluid.isFluid() && 0 < CreateTileAtlas.fluidFillToTileLevel(fluid.amount))) {
                 ret += (1 shl i) // add 1, 2, 4, 8 for i = 0, 1, 2, 3

src/net/torvald/terrarum/worlddrawer/LightmapRendererNew.kt

@@ -211,7 +211,7 @@ object LightmapRenderer {
         }
 
         // wipe out lightmap
-        AppLoader.measureDebugTime("Renderer.Light0") {
+        AppLoader.measureDebugTime("Renderer.LightPrecalc") {
             // when disabled, light will "decay out" instead of "instantly out", which can have a cool effect
             // but the performance boost is measly 0.1 ms on 6700K
             lightmap.zerofill()
@@ -224,10 +224,10 @@ object LightmapRenderer {
                 }
             }
         }
-        // O((5*9)n) == O(n) where n is a size of the map.
+        // O((5*9)n where n is a size of the map.
         // Because of inevitable overlaps on the area, it only works with MAX blend
 
-        fun r1() {
+        /*fun or1() {
             // Round 1
             for (y in for_y_start - overscan_open..for_y_end) {
                 for (x in for_x_start - overscan_open..for_x_end) {
@@ -235,7 +235,7 @@ object LightmapRenderer {
                 }
             }
         }
-        fun r2() {
+        fun or2() {
             // Round 2
             for (y in for_y_end + overscan_open downTo for_y_start) {
                 for (x in for_x_start - overscan_open..for_x_end) {
@@ -243,7 +243,7 @@ object LightmapRenderer {
                 }
             }
         }
-        fun r3() {
+        fun or3() {
             // Round 3
             for (y in for_y_end + overscan_open downTo for_y_start) {
                 for (x in for_x_end + overscan_open downTo for_x_start) {
@@ -251,13 +251,109 @@ object LightmapRenderer {
                 }
             }
         }
-        fun r4() {
+        fun or4() {
             // Round 4
             for (y in for_y_start - overscan_open..for_y_end) {
                 for (x in for_x_end + overscan_open downTo for_x_start) {
                     calculateAndAssign(lightmap, x, y)
                 }
             }
+        }*/
+
+        // O((8*2)n) where n is a size of the map.
+        fun r1() {
+            // TODO test non-parallel
+            swipeDiag = false
+            for (line in 1 until LIGHTMAP_HEIGHT - 1) {
+                swipeLight(
+                        1, line,
+                        LIGHTMAP_WIDTH - 2, line,
+                        1, 0
+                )
+            }
+        }
+        fun r2() {
+            // TODO test non-parallel
+            swipeDiag = false
+            for (line in 1 until LIGHTMAP_WIDTH - 1) {
+                swipeLight(
+                        line, 1,
+                        line, LIGHTMAP_HEIGHT - 2,
+                        0, 1
+                )
+            }
+        }
+        fun r3() {
+            // TODO test non-parallel
+            swipeDiag = true
+            /* construct indices such that:
+                  56789ABC
+               4 1       w-2
+               3 \---\---+
+               2 \\···\··|
+               1 \\\···\·|
+               0 \\\\···\|
+             h-2 \\\\\---\
+
+             0   (1, h-2) -> (1, h-2)
+             1   (1, h-2-1) -> (2, h-2)
+             2   (1, h-2-2) -> (3, h-2)
+             3   (1, h-2-3) -> (4, h-2)
+             4   (1, 1) -> (5, h-2)
+
+             5   (2, 1) -> (6, h-2)
+             6   (3, 1) -> (7, h-2)
+             7   (4, 1) -> (8, h-2)
+             8   (5, 1) -> (w-2, h-2)
+
+             9   (6, 1) -> (w-2, h-2-1)
+             10  (7, 1) -> (w-2, h-2-2)
+             11  (8, 1) -> (w-2, h-2-3)
+             12  (w-2, 1) -> (w-2, 1)
+
+             number of indices: internal_width + internal_height - 1
+             */
+            for (i in 0 until LIGHTMAP_WIDTH + LIGHTMAP_HEIGHT - 5) {
+                swipeLight(
+                        maxOf(1, i - LIGHTMAP_HEIGHT + 4), maxOf(1, LIGHTMAP_HEIGHT - 2 - i),
+                        minOf(LIGHTMAP_WIDTH - 2, i + 1), minOf(LIGHTMAP_HEIGHT - 2, (LIGHTMAP_WIDTH + LIGHTMAP_HEIGHT - 5) - i),
+                        1, 1
+                )
+            }
+        }
+        fun r4() {
+            // TODO test non-parallel
+            swipeDiag = true
+            /*
+                1       w-2
+                /////---/
+                ////···/|
+                ///···/·|
+                //···/··|
+            h-2 /---/---+
+            d:(1,-1)
+
+             0  (1, 1) -> (1, 1)
+             1  (1, 2) -> (2, 1)
+             2  (1, 3) -> (3, 1)
+             3  (1, 4) -> (4, 1)
+             4  (1, h-2) -> (5, 1)
+             5  (2, h-2) -> (6, 1)
+             6  (3, h-2) -> (7, 1)
+             7  (4, h-2) -> (8, 1)
+             8  (5, h-2) -> (w-2, 1)
+             9  (6, h-2) -> (w-2, 2)
+            10  (7, h-2) -> (w-2, 3)
+            11  (8, h-2) -> (w-2, 4)
+            12  (w-2, h-2) -> (w-2, h-2)
+             */
+            for (i in 0 until LIGHTMAP_WIDTH + LIGHTMAP_HEIGHT - 5) {
+                swipeLight(
+                        maxOf(1, i - LIGHTMAP_HEIGHT + 4), minOf(LIGHTMAP_HEIGHT - 2, i + 1),
+                        minOf(LIGHTMAP_WIDTH - 2, i + 1), maxOf(1, (LIGHTMAP_HEIGHT - 2) - (LIGHTMAP_WIDTH + LIGHTMAP_HEIGHT - 6) + i),
+                        1, -1
+                )
+            }
         }
 
 
@@ -266,7 +362,7 @@ object LightmapRenderer {
         //      I was able to pull out 3.5..5.5 ms! With abhorrently many occurrences of segfaults I had to track down...
 
         if (!AppLoader.getConfigBoolean("multithreadedlight")) {
-            AppLoader.measureDebugTime("Renderer.LightTotal") {
+            AppLoader.measureDebugTime("Renderer.LightRuns") {
 
                 // To save you from pains:
                 // - Per-channel light updating is actually slower
@@ -275,11 +371,15 @@ object LightmapRenderer {
                 // - Multithreading? I have absolutely no idea.
                 // - If you naively slice the screen (job area) to multithread, the seam will appear.
 
-                r3();r4();r1();r2();r3();
+                //r3();r4();r1();r2();r3();
+
+                r1();r2();r3();r4()
+                r1();r2();r3();r4()
+
             }
         }
         else if (world.worldIndex != -1) { // to avoid updating on the null world
-            AppLoader.measureDebugTime("Renderer.LightTotal") {
+            AppLoader.measureDebugTime("Renderer.LightRuns") {
             }
         }
     }
@@ -522,6 +622,57 @@ object LightmapRenderer {
         // you're doing it wrong, the IF and return statements must be inclusive.
     }
 
+    private var swipeX = -1
+    private var swipeY = -1
+    private var swipeDiag = false
+    private fun _swipeTask(x: Int, y: Int, x2: Int, y2: Int) {
+        if (x2 < 0 || y2 < 0 || x2 >= LIGHTMAP_WIDTH || y2 >= LIGHTMAP_HEIGHT) return
+
+        _ambientAccumulator.r = _mapLightLevelThis.getR(x, y)
+        _ambientAccumulator.g = _mapLightLevelThis.getG(x, y)
+        _ambientAccumulator.b = _mapLightLevelThis.getB(x, y)
+        _ambientAccumulator.a = _mapLightLevelThis.getA(x, y)
+
+        if (!swipeDiag) {
+            _thisTileOpacity.r = _mapThisTileOpacity.getR(x, y)
+            _thisTileOpacity.g = _mapThisTileOpacity.getG(x, y)
+            _thisTileOpacity.b = _mapThisTileOpacity.getB(x, y)
+            _thisTileOpacity.a = _mapThisTileOpacity.getA(x, y)
+            _ambientAccumulator.maxAndAssign(darkenColoured(x2, y2, _thisTileOpacity))
+        }
+        else {
+            _thisTileOpacity2.r = _mapThisTileOpacity2.getR(x, y)
+            _thisTileOpacity2.g = _mapThisTileOpacity2.getG(x, y)
+            _thisTileOpacity2.b = _mapThisTileOpacity2.getB(x, y)
+            _thisTileOpacity2.a = _mapThisTileOpacity2.getA(x, y)
+            _ambientAccumulator.maxAndAssign(darkenColoured(x2, y2, _thisTileOpacity2))
+        }
+
+        _mapLightLevelThis.setVec(x, y, _ambientAccumulator)
+        lightmap.setVec(x, y, _ambientAccumulator)
+    }
+    private fun swipeLight(sx: Int, sy: Int, ex: Int, ey: Int, dx: Int, dy: Int) {
+        swipeX = sx; swipeY = sy
+        while (swipeX*dx <= ex*dx && swipeY*dy <= ey*dy) {
+            // conduct the task #1
+            // spread towards the end
+            _swipeTask(swipeX, swipeY, swipeX-dx, swipeY-dy)
+
+            swipeX += dx
+            swipeY += dy
+        }
+
+        swipeX = ex; swipeY = ey
+        while (swipeX*dx >= sx*dx && swipeY*dy >= sy*dy) {
+            // conduct the task #2
+            // spread towards the start
+            _swipeTask(swipeX, swipeY, swipeX+dx, swipeY+dy)
+
+            swipeX -= dx
+            swipeY -= dy
+        }
+    }
+
     /**
      * Calculates the light simulation, using main lightmap as one of the input.
      */