diff --git a/lib/kotlin-reflect.jar b/lib/kotlin-reflect.jar
index 56c033b36..dd38a93bd 100755
Binary files a/lib/kotlin-reflect.jar and b/lib/kotlin-reflect.jar differ
diff --git a/lib/kotlin-stdlib.jar b/lib/kotlin-stdlib.jar
index 5e0932b2d..9569a6713 100644
Binary files a/lib/kotlin-stdlib.jar and b/lib/kotlin-stdlib.jar differ
diff --git a/screenshot_01.png b/screenshot_01.png
new file mode 100644
index 000000000..27146d05d
Binary files /dev/null and b/screenshot_01.png differ
diff --git a/src/net/torvald/terrarum/DefaultConfig.kt b/src/net/torvald/terrarum/DefaultConfig.kt
index 040df0f78..e9b9c7aa7 100644
--- a/src/net/torvald/terrarum/DefaultConfig.kt
+++ b/src/net/torvald/terrarum/DefaultConfig.kt
@@ -56,7 +56,7 @@ object DefaultConfig {
         jsonObject.addProperty("keyclose", Input.Keys.C)
 
         jsonObject.addProperty("keygamemenu", Input.Keys.TAB)
-        jsonObject.addProperty("keyquicksel", Input.Keys.SHIFT_LEFT) // pie menu (A) because GDX does not read CapsLock
+        jsonObject.addProperty("keyquicksel", Input.Keys.SHIFT_LEFT) // pie menu is now LShift because GDX does not read CapsLock
         val keyquickselalt = JsonArray(); keyquickselalt.add(Input.Keys.BACKSPACE); keyquickselalt.add(Input.Keys.CONTROL_LEFT); keyquickselalt.add(Input.Keys.BACKSLASH)
         // Colemak, Workman and some typers use CapsLock as Backspace, Apple-JIS and HHKB has Control in place of CapsLock and often re-assigned to Command
         // so these keys are treated as the same.
@@ -65,7 +65,7 @@ object DefaultConfig {
 
         jsonObject.addProperty("keyjump", Input.Keys.SPACE)
 
-        val keyquickbars = JsonArray(); for (i in 2..11) keyquickbars.add(i) // NUM_1 to NUM_0
+        val keyquickbars = JsonArray(); for (i in Input.Keys.NUMPAD_1..Input.Keys.NUMPAD_9) keyquickbars.add(i); keyquickbars.add(Input.Keys.NUMPAD_0) // NUM_1 to NUM_0
         jsonObject.add("keyquickbars", keyquickbars)
 
         jsonObject.addProperty("mouseprimary", Input.Buttons.LEFT) // left mouse
diff --git a/src/net/torvald/terrarum/StateInGameGDX.kt b/src/net/torvald/terrarum/StateInGameGDX.kt
index 936e41396..0a55263b8 100644
--- a/src/net/torvald/terrarum/StateInGameGDX.kt
+++ b/src/net/torvald/terrarum/StateInGameGDX.kt
@@ -73,12 +73,12 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
     val ZOOM_MINIMUM = 0.5f
 
     companion object {
-        val lightmapDownsample = 1f // have no fucking idea why downsampling wrecks camera and render
+        val lightmapDownsample = 1f
     }
 
-    var worldDrawFrameBuffer = FrameBuffer(Pixmap.Format.RGBA8888, Gdx.graphics.width, Gdx.graphics.height, false)
-    var lightmapFboA = FrameBuffer(Pixmap.Format.RGBA8888, Gdx.graphics.width.div(lightmapDownsample).ceilInt(), Gdx.graphics.height.div(lightmapDownsample).ceilInt(), false)
-    var lightmapFboB = FrameBuffer(Pixmap.Format.RGBA8888, Gdx.graphics.width.div(lightmapDownsample).ceilInt(), Gdx.graphics.height.div(lightmapDownsample).ceilInt(), false)
+    var worldDrawFrameBuffer = FrameBuffer(Pixmap.Format.RGBA8888, TerrarumGDX.WIDTH, TerrarumGDX.HEIGHT, true)
+    var lightmapFboA = FrameBuffer(Pixmap.Format.RGBA8888, TerrarumGDX.WIDTH.div(lightmapDownsample.toInt()), TerrarumGDX.HEIGHT.div(lightmapDownsample.toInt()), true)
+    var lightmapFboB = FrameBuffer(Pixmap.Format.RGBA8888, TerrarumGDX.WIDTH.div(lightmapDownsample.toInt()), TerrarumGDX.HEIGHT.div(lightmapDownsample.toInt()), true)
 
 
     //private lateinit var shader12BitCol: Shader // grab LibGDX if you want some shader
@@ -129,10 +129,13 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
     // GDX code //
     //////////////
 
-    var camera = OrthographicCamera(Gdx.graphics.width.toFloat(), Gdx.graphics.height.toFloat())
+    var camera = OrthographicCamera(TerrarumGDX.WIDTH.toFloat(), TerrarumGDX.HEIGHT.toFloat())
 
     // invert Y
     fun initViewPort(width: Int, height: Int) {
+        //val width = if (width % 1 == 1) width + 1 else width
+        //val height = if (height % 1 == 1) height + 1 else width
+
         // Set Y to point downwards
         camera.setToOrtho(true, width.toFloat(), height.toFloat())
 
@@ -146,7 +149,7 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
 
     override fun show() {
         // Set up viewport on first load
-        initViewPort(Gdx.graphics.width, Gdx.graphics.height)
+        initViewPort(TerrarumGDX.WIDTH, TerrarumGDX.HEIGHT)
     }
 
 
@@ -155,7 +158,7 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
         Gdx.input.inputProcessor = GameController
 
 
-        initViewPort(Gdx.graphics.width, Gdx.graphics.height)
+        initViewPort(TerrarumGDX.WIDTH, TerrarumGDX.HEIGHT)
 
 
         // load things when the game entered this "state"
@@ -200,7 +203,7 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
         notifier = UIHandler(Notification())
         notifier.UI.handler = notifier
         notifier.setPosition(
-                (Gdx.graphics.width - notifier.UI.width) / 2, Gdx.graphics.height - notifier.UI.height)
+                (TerrarumGDX.WIDTH - notifier.UI.width) / 2, TerrarumGDX.HEIGHT - notifier.UI.height)
 
 
 
@@ -210,7 +213,7 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
         uiInventoryPlayer = UIHandler(
                 UIInventory(player,
                         width = 840,
-                        height = Gdx.graphics.height - 160,
+                        height = TerrarumGDX.HEIGHT - 160,
                         categoryWidth = 210
                 ),
                 toggleKey = TerrarumGDX.getConfigInt("keyinventory")
@@ -243,11 +246,11 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
         // basic watch-style notification bar (temperature, new mail)
         uiWatchBasic = UIHandler(UIBasicNotifier(player))
         uiWatchBasic.setAsAlwaysVisible()
-        uiWatchBasic.setPosition(Gdx.graphics.width - uiWatchBasic.UI.width, 0)
+        uiWatchBasic.setPosition(TerrarumGDX.WIDTH - uiWatchBasic.UI.width, 0)
 
         uiWatchTierOne = UIHandler(UITierOneWatch(player))
         uiWatchTierOne.setAsAlwaysVisible()
-        uiWatchTierOne.setPosition(Gdx.graphics.width - uiWatchTierOne.UI.width, uiWatchBasic.UI.height - 2)
+        uiWatchTierOne.setPosition(TerrarumGDX.WIDTH - uiWatchTierOne.UI.width, uiWatchBasic.UI.height - 2)
 
 
         // batch-process uiAliases
@@ -388,8 +391,8 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
         ///////////////////
         // blur lightmap //
         ///////////////////
-        val blurIterations = 5 // ideally, 4 * radius; must be even/odd number -- odd/even number will flip the image
-        val blurRadius = 4f // (5, 4f); using low numbers for pixel-y aesthetics
+        val blurIterations = 3 // ideally, 4 * radius; must be even/odd number -- odd/even number will flip the image
+        val blurRadius = 4f / lightmapDownsample // (3, 4f); using low numbers for pixel-y aesthetics
 
 
 
@@ -403,6 +406,11 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
             Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT)
         }
 
+        worldDrawFrameBuffer.inAction(null, null) {
+            Gdx.gl.glClearColor(0f,0f,0f,0f)
+            Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT)
+        }
+
 
 
         var blurWriteBuffer = lightmapFboA
@@ -415,7 +423,7 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
         blurReadBuffer.inAction(camera, batch) {
             batch.inUse {
                 // using custom code for camera; this is obscure and tricky
-                camera.position.set(WorldCamera.gdxCamX, WorldCamera.gdxCamY, 0f) // make camara work
+                camera.position.set((WorldCamera.gdxCamX / lightmapDownsample).round(), (WorldCamera.gdxCamY / lightmapDownsample).round(), 0f) // make camara work
                 camera.update()
                 batch.projectionMatrix = camera.combined
 
@@ -426,7 +434,7 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
             }
         }
 
-        if (TerrarumGDX.getConfigBoolean("smoothlighting")) {
+        if (!KeyToggler.isOn(Input.Keys.F8)) {
             for (i in 0..blurIterations - 1) {
                 blurWriteBuffer.inAction(camera, batch) {
 
@@ -468,13 +476,11 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
         ///////////////////////////
 
         worldDrawFrameBuffer.inAction(camera, batch) {
-            Gdx.gl.glClearColor(0f,0f,0f,0f)
-            Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT)
-
 
             batch.inUse {
                 batch.shader = null
 
+
                 // using custom code for camera; this is obscure and tricky
                 camera.position.set(WorldCamera.gdxCamX, WorldCamera.gdxCamY, 0f) // make camara work
                 camera.update()
@@ -515,6 +521,7 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
                     setCameraPosition(0f, 0f)
 
                     val lightTex = blurWriteBuffer.colorBufferTexture // TODO zoom!
+                    lightTex.setFilter(Texture.TextureFilter.Nearest, Texture.TextureFilter.Nearest)
                     if (KeyToggler.isOn(KEY_LIGHTMAP_RENDER)) blendNormal()
                     else blendMul()
                     batch.color = Color.WHITE
@@ -547,7 +554,7 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
         /////////////////////////
         // draw to main screen //
         /////////////////////////
-        camera.setToOrtho(true, Gdx.graphics.width.toFloat(), Gdx.graphics.height.toFloat())
+        camera.setToOrtho(true, TerrarumGDX.WIDTH.toFloat(), TerrarumGDX.HEIGHT.toFloat())
         batch.projectionMatrix = camera.combined
         batch.inUse {
             batch.shader = null
@@ -565,6 +572,7 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
 
             batch.color = Color.WHITE
             val worldTex = worldDrawFrameBuffer.colorBufferTexture // TODO zoom!
+            worldTex.setFilter(Texture.TextureFilter.Nearest, Texture.TextureFilter.Nearest)
             batch.draw(worldTex, 0f, 0f, worldTex.width.toFloat(), worldTex.height.toFloat())
 
 
@@ -805,8 +813,8 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
         // centre marker
         /*gwin.color = Color(0x00FFFF)
         gwin.lineWidth = 1f
-        gwin.drawLine(Gdx.graphics.width / 2f, 0f, Gdx.graphics.width / 2f, Gdx.graphics.height.toFloat())
-        gwin.drawLine(0f, Gdx.graphics.height / 2f, Gdx.graphics.width.toFloat(), Gdx.graphics.height / 2f)*/
+        gwin.drawLine(TerrarumGDX.WIDTH / 2f, 0f, TerrarumGDX.WIDTH / 2f, TerrarumGDX.HEIGHT.toFloat())
+        gwin.drawLine(0f, TerrarumGDX.HEIGHT / 2f, TerrarumGDX.WIDTH.toFloat(), TerrarumGDX.HEIGHT / 2f)*/
     }
 
 
@@ -967,8 +975,8 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
     /** whether the actor is within screen */
     private fun ActorWithBody.inScreen() =
             distToCameraSqr(this) <=
-            (Gdx.graphics.width.plus(this.hitbox.width.div(2)).times(1 / TerrarumGDX.ingame!!.screenZoom).sqr() +
-             Gdx.graphics.height.plus(this.hitbox.height.div(2)).times(1 / TerrarumGDX.ingame!!.screenZoom).sqr())
+            (TerrarumGDX.WIDTH.plus(this.hitbox.width.div(2)).times(1 / TerrarumGDX.ingame!!.screenZoom).sqr() +
+             TerrarumGDX.HEIGHT.plus(this.hitbox.height.div(2)).times(1 / TerrarumGDX.ingame!!.screenZoom).sqr())
 
 
     /** whether the actor is within update range */
@@ -1195,11 +1203,11 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
 
     override fun resize(width: Int, height: Int) {
         worldDrawFrameBuffer.dispose()
-        worldDrawFrameBuffer = FrameBuffer(Pixmap.Format.RGBA8888, width, height, false)
+        worldDrawFrameBuffer = FrameBuffer(Pixmap.Format.RGBA8888, width, height, true)
         lightmapFboA.dispose()
-        lightmapFboA = FrameBuffer(Pixmap.Format.RGBA8888, width.div(lightmapDownsample).ceilInt(), height.div(lightmapDownsample).ceilInt(), false)
+        lightmapFboA = FrameBuffer(Pixmap.Format.RGBA8888, width.div(lightmapDownsample.toInt()), height.div(lightmapDownsample.toInt()), true)
         lightmapFboB.dispose()
-        lightmapFboB = FrameBuffer(Pixmap.Format.RGBA8888, width.div(lightmapDownsample).ceilInt(), height.div(lightmapDownsample).ceilInt(), false)
+        lightmapFboB = FrameBuffer(Pixmap.Format.RGBA8888, width.div(lightmapDownsample.toInt()), height.div(lightmapDownsample.toInt()), true)
 
 
         // Set up viewport when window is resized
@@ -1220,7 +1228,7 @@ class StateInGameGDX(val batch: SpriteBatch) : Screen {
      * Camera will be moved so that (newX, newY) would be sit on the top-left edge.
      */
     fun setCameraPosition(newX: Float, newY: Float) {
-        camera.position.set(-newX + TerrarumGDX.HALFW, -newY + TerrarumGDX.HALFH, 0f)
+        camera.position.set((-newX + TerrarumGDX.HALFW).round(), (-newY + TerrarumGDX.HALFH).round(), 0f)
         camera.update()
         batch.projectionMatrix = camera.combined
     }
diff --git a/src/net/torvald/terrarum/TerrarumGDX.kt b/src/net/torvald/terrarum/TerrarumGDX.kt
index a82087324..93d9a4735 100644
--- a/src/net/torvald/terrarum/TerrarumGDX.kt
+++ b/src/net/torvald/terrarum/TerrarumGDX.kt
@@ -16,8 +16,10 @@ import com.badlogic.gdx.graphics.glutils.ShaderProgram
 import com.badlogic.gdx.graphics.glutils.ShapeRenderer
 import com.google.gson.JsonArray
 import com.google.gson.JsonPrimitive
+import com.jme3.math.FastMath
 import net.torvald.terrarum.blockproperties.BlockCodex
 import net.torvald.terrarum.gameactors.ActorWithPhysics.Companion.TILE_SIZE
+import net.torvald.terrarum.gameactors.floor
 import net.torvald.terrarum.gamecontroller.GameController
 import net.torvald.terrarum.imagefont.TinyAlphNum
 import net.torvald.terrarum.itemproperties.ItemCodex
@@ -82,10 +84,16 @@ object TerrarumGDX : ApplicationAdapter() {
     var VSYNC = USE_VSYNC
     val VSYNC_TRIGGER_THRESHOLD = 56
 
+
+    inline val WIDTH: Int
+        get() = Gdx.graphics.width//if (Gdx.graphics.width % 1 == 1) Gdx.graphics.width + 1 else Gdx.graphics.width
+    inline val HEIGHT: Int
+        get() = Gdx.graphics.height//if (Gdx.graphics.height % 1 == 1) Gdx.graphics.height + 1 else Gdx.graphics.height
+
     inline val HALFW: Int
-        get() = Gdx.graphics.width.ushr(1)
+        get() = WIDTH.ushr(1)
     inline val HALFH: Int
-        get() = Gdx.graphics.height.ushr(1)
+        get() = HEIGHT.ushr(1)
 
     /**
      * To be used with physics simulator
@@ -522,13 +530,16 @@ inline fun ShapeRenderer.inUse(shapeRendererType: ShapeRenderer.ShapeType = Shap
 inline fun FrameBuffer.inAction(camera: OrthographicCamera?, batch: SpriteBatch?, action: (FrameBuffer) -> Unit) {
     this.begin()
     camera?.setToOrtho(true, this.width.toFloat(), this.height.toFloat())
-    camera?.position?.set(this.width / 2f, this.height / 2f, 0f) // are these actually needed?
-    camera?.update()                                             // are these actually needed?
+    camera?.position?.set((this.width / 2f).round(), (this.height / 2f).round(), 0f) // TODO floor? ceil? round?
+    camera?.update()
     batch?.projectionMatrix = camera?.combined
     action(this)
     this.end()
 }
 
+fun Float.round(): Float {
+    return Math.round(this).toFloat()
+}
 
 
 // ShapeRenderer alternative for rects
diff --git a/src/net/torvald/terrarum/TestTestTest.kt b/src/net/torvald/terrarum/TestTestTest.kt
index e224e119e..be6bd9986 100644
--- a/src/net/torvald/terrarum/TestTestTest.kt
+++ b/src/net/torvald/terrarum/TestTestTest.kt
@@ -43,7 +43,7 @@ class TestTestTest(val batch: SpriteBatch) : Screen {
 
     fun enter() {
         // init view port
-        camera = OrthographicCamera(Gdx.graphics.width.toFloat(), Gdx.graphics.height.toFloat())
+        camera = OrthographicCamera(TerrarumGDX.WIDTH.toFloat(), TerrarumGDX.HEIGHT.toFloat())
 
 
         img = Texture("assets/test_texture.tga")
@@ -55,14 +55,14 @@ class TestTestTest(val batch: SpriteBatch) : Screen {
         blurFboA = FrameBuffer(Pixmap.Format.RGBA8888, img.width, img.height, false)
         blurFboB = FrameBuffer(Pixmap.Format.RGBA8888, img.width, img.height, false)
 
-        worldFbo = FrameBuffer(Pixmap.Format.RGBA8888, Gdx.graphics.width, Gdx.graphics.height, false)
+        worldFbo = FrameBuffer(Pixmap.Format.RGBA8888, TerrarumGDX.WIDTH, TerrarumGDX.HEIGHT, false)
 
         //blurShader.begin()
         //blurShader.setUniformf("iResolution", img.width.toFloat(), img.height.toFloat(), 0f)
         //blurShader.end()
 
 
-        initViewPort(Gdx.graphics.width, Gdx.graphics.height)
+        initViewPort(TerrarumGDX.WIDTH, TerrarumGDX.HEIGHT)
     }
 
     override fun render(delta: Float) {
@@ -133,7 +133,7 @@ class TestTestTest(val batch: SpriteBatch) : Screen {
             batch.inUse {
                 batch.shader = null
 
-                camera.position.set(Gdx.graphics.width / 2f - 50f, Gdx.graphics.height / 2f - 50f, 0f)
+                camera.position.set(TerrarumGDX.WIDTH / 2f - 50f, TerrarumGDX.HEIGHT / 2f - 50f, 0f)
                 camera.update()
                 batch.projectionMatrix = camera.combined
 
@@ -145,11 +145,11 @@ class TestTestTest(val batch: SpriteBatch) : Screen {
         }
 
 
-        camera.setToOrtho(true, Gdx.graphics.width.toFloat(), Gdx.graphics.height.toFloat())
+        camera.setToOrtho(true, TerrarumGDX.WIDTH.toFloat(), TerrarumGDX.HEIGHT.toFloat())
         batch.projectionMatrix = camera.combined
         batch.inUse {
 
-            camera.position.set(Gdx.graphics.width / 2f, Gdx.graphics.height / 2f, 0f)
+            camera.position.set(TerrarumGDX.WIDTH / 2f, TerrarumGDX.HEIGHT / 2f, 0f)
             camera.update()
             batch.projectionMatrix = camera.combined
 
@@ -166,7 +166,7 @@ class TestTestTest(val batch: SpriteBatch) : Screen {
     }
 
     override fun show() {
-        initViewPort(Gdx.graphics.width, Gdx.graphics.height)
+        initViewPort(TerrarumGDX.WIDTH, TerrarumGDX.HEIGHT)
     }
 
     override fun pause() {
@@ -199,7 +199,7 @@ object TestTestMain : ApplicationAdapter() {
         // culprit #4
         blurShader.begin()
         blurShader.setUniformf("dir", 0f, 0f); //direction of blur; nil for now
-        blurShader.setUniformf("resolution", maxOf(Gdx.graphics.width.toFloat(), Gdx.graphics.height.toFloat())) //size of FBO texture
+        blurShader.setUniformf("resolution", maxOf(TerrarumGDX.WIDTH.toFloat(), TerrarumGDX.HEIGHT.toFloat())) //size of FBO texture
         blurShader.setUniformf("radius", 9f) //radius of blur
         blurShader.end()
 
diff --git a/src/net/torvald/terrarum/blockstats/BlockStats.kt b/src/net/torvald/terrarum/blockstats/BlockStats.kt
index b2bb8f2d0..12b3a36f7 100644
--- a/src/net/torvald/terrarum/blockstats/BlockStats.kt
+++ b/src/net/torvald/terrarum/blockstats/BlockStats.kt
@@ -30,8 +30,8 @@ object BlockStats {
         val map = TerrarumGDX.ingame!!.world
         val player = TerrarumGDX.ingame!!.player
 
-        val renderWidth = FastMath.ceil(Gdx.graphics.width.toFloat())
-        val renderHeight = FastMath.ceil(Gdx.graphics.height.toFloat())
+        val renderWidth = FastMath.ceil(TerrarumGDX.WIDTH.toFloat())
+        val renderHeight = FastMath.ceil(TerrarumGDX.HEIGHT.toFloat())
 
         val noZoomCameraX = Math.round(FastMath.clamp(
                 (player?.hitbox?.centeredX?.toFloat() ?: 0f) - renderWidth / 2, TSIZE.toFloat(), map.width * TSIZE - renderWidth - TSIZE.toFloat()))
diff --git a/src/net/torvald/terrarum/ui/BasicDebugInfoWindow.kt b/src/net/torvald/terrarum/ui/BasicDebugInfoWindow.kt
index e158142d2..0ad2d9276 100644
--- a/src/net/torvald/terrarum/ui/BasicDebugInfoWindow.kt
+++ b/src/net/torvald/terrarum/ui/BasicDebugInfoWindow.kt
@@ -18,8 +18,8 @@ import net.torvald.terrarum.TerrarumGDX.mouseScreenY
  */
 class BasicDebugInfoWindow : UICanvas {
 
-    override var width: Int = Gdx.graphics.width
-    override var height: Int = Gdx.graphics.height
+    override var width: Int = TerrarumGDX.WIDTH
+    override var height: Int = TerrarumGDX.HEIGHT
 
     override var openCloseTime: Float = 0f
 
@@ -142,8 +142,8 @@ class BasicDebugInfoWindow : UICanvas {
 
 
         drawHistogram(batch, LightmapRenderer.histogram,
-                Gdx.graphics.width - histogramW - 30,
-                Gdx.graphics.height - histogramH - 30
+                TerrarumGDX.WIDTH - histogramW - 30,
+                TerrarumGDX.HEIGHT - histogramH - 30
         )
 
         batch.color = Color.WHITE
@@ -152,7 +152,7 @@ class BasicDebugInfoWindow : UICanvas {
             drawGamepadAxis(batch,
                     TerrarumGDX.controller!!.getAxisValue(3),
                     TerrarumGDX.controller!!.getAxisValue(2),
-                    Gdx.graphics.width - 135,
+                    TerrarumGDX.WIDTH - 135,
                     40
             )
         }
@@ -162,32 +162,32 @@ class BasicDebugInfoWindow : UICanvas {
          */
 
         //g.color = GameFontBase.codeToCol["y"]
-        TerrarumGDX.fontSmallNumbers.draw(batch, "${ccY}MEM ", (Gdx.graphics.width - 21 * 8 - 2).toFloat(), 2f)
-        //g.draw(batch, "${ccY}FPS $ccG${Terrarum.appgc.fps}", (Gdx.graphics.width - 6 * 8 - 2).toFloat(), 10f)
+        TerrarumGDX.fontSmallNumbers.draw(batch, "${ccY}MEM ", (TerrarumGDX.WIDTH - 21 * 8 - 2).toFloat(), 2f)
+        //g.draw(batch, "${ccY}FPS $ccG${Terrarum.appgc.fps}", (TerrarumGDX.WIDTH - 6 * 8 - 2).toFloat(), 10f)
         TerrarumGDX.fontSmallNumbers.draw(batch, "${ccY}CPUs ${if (TerrarumGDX.MULTITHREAD) ccG else ccR}${TerrarumGDX.THREADS}",
-                (Gdx.graphics.width - 2 - 6*8).toFloat(), 10f)
+                (TerrarumGDX.WIDTH - 2 - 6*8).toFloat(), 10f)
 
         //g.color = GameFontBase.codeToCol["g"]
         TerrarumGDX.fontSmallNumbers.draw(batch, "${TerrarumGDX.memInUse}M",
-                (Gdx.graphics.width - 17 * 8 - 2).toFloat(), 2f)
+                (TerrarumGDX.WIDTH - 17 * 8 - 2).toFloat(), 2f)
         TerrarumGDX.fontSmallNumbers.draw(batch, "/${TerrarumGDX.memTotal}M/",
-                (Gdx.graphics.width - 12 * 8 - 2).toFloat(), 2f)
+                (TerrarumGDX.WIDTH - 12 * 8 - 2).toFloat(), 2f)
         //TerrarumGDX.fontSmallNumbers.color = GameFontBase.codeToCol["m"]
         TerrarumGDX.fontSmallNumbers.draw(batch, "${TerrarumGDX.memXmx}M",
-                (Gdx.graphics.width - 5 * 8 - 2).toFloat(), 2f)
+                (TerrarumGDX.WIDTH - 5 * 8 - 2).toFloat(), 2f)
 
         /**
          * Bottom left
          */
 
         TerrarumGDX.fontSmallNumbers.draw(batch, "${ccY}Actors total $ccG${TerrarumGDX.ingame!!.actorContainer.size + TerrarumGDX.ingame!!.actorContainerInactive.size}",
-                2f, Gdx.graphics.height - 10f)
+                2f, TerrarumGDX.HEIGHT - 10f)
         TerrarumGDX.fontSmallNumbers.draw(batch, "${ccY}Active $ccG${TerrarumGDX.ingame!!.actorContainer.size}",
-                (2 + 17*8).toFloat(), Gdx.graphics.height - 10f)
+                (2 + 17*8).toFloat(), TerrarumGDX.HEIGHT - 10f)
         TerrarumGDX.fontSmallNumbers.draw(batch, "${ccY}Dormant $ccG${TerrarumGDX.ingame!!.actorContainerInactive.size}",
-                (2 + 28*8).toFloat(), Gdx.graphics.height - 10f)
+                (2 + 28*8).toFloat(), TerrarumGDX.HEIGHT - 10f)
         TerrarumGDX.fontSmallNumbers.draw(batch, "${ccM}Particles $ccG${TerrarumGDX.ingame!!.particlesActive}",
-                (2 + 41*8).toFloat(), Gdx.graphics.height - 10f)
+                (2 + 41*8).toFloat(), TerrarumGDX.HEIGHT - 10f)
     }
 
     private fun printLine(batch: SpriteBatch, l: Int, s: String) {
diff --git a/src/net/torvald/terrarum/ui/ConsoleWindow.kt b/src/net/torvald/terrarum/ui/ConsoleWindow.kt
index 97a24ebc1..08f1e0f9c 100644
--- a/src/net/torvald/terrarum/ui/ConsoleWindow.kt
+++ b/src/net/torvald/terrarum/ui/ConsoleWindow.kt
@@ -32,7 +32,7 @@ class ConsoleWindow : UICanvas, KeyControlled {
     private val LINE_HEIGHT = 20
     private val MESSAGES_DISPLAY_COUNT = 11
 
-    override var width: Int = Gdx.graphics.width
+    override var width: Int = TerrarumGDX.WIDTH
     override var height: Int = LINE_HEIGHT * (MESSAGES_DISPLAY_COUNT + 1)
 
     override var openCloseTime = 0f
diff --git a/src/net/torvald/terrarum/ui/DrawUtil.kt b/src/net/torvald/terrarum/ui/DrawUtil.kt
index a893f6502..b38fa4b9f 100644
--- a/src/net/torvald/terrarum/ui/DrawUtil.kt
+++ b/src/net/torvald/terrarum/ui/DrawUtil.kt
@@ -1,8 +1,8 @@
 package net.torvald.terrarum.ui
 
-import com.badlogic.gdx.Gdx
 import com.badlogic.gdx.graphics.Texture
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
+import net.torvald.terrarum.TerrarumGDX
 
 
 /**
@@ -11,7 +11,7 @@ import com.badlogic.gdx.graphics.g2d.SpriteBatch
 object DrawUtil {
     fun drawCentered(batch: SpriteBatch, image: Texture, screenPosY: Int, ui: UICanvas? = null) {
         val imageW = image.width
-        val targetW = if (ui == null) Gdx.graphics.width else ui.width
+        val targetW = if (ui == null) TerrarumGDX.WIDTH else ui.width
 
         batch.draw(image, targetW.minus(imageW).ushr(1).toFloat(), screenPosY.toFloat())
     }
diff --git a/src/net/torvald/terrarum/ui/UICanvas.kt b/src/net/torvald/terrarum/ui/UICanvas.kt
index 1486fe545..8485eb3df 100644
--- a/src/net/torvald/terrarum/ui/UICanvas.kt
+++ b/src/net/torvald/terrarum/ui/UICanvas.kt
@@ -98,13 +98,13 @@ interface UICanvas {
                 ).roundInt()
                 Position.RIGHT -> handler!!.posX = Movement.fastPullOut(
                         handler.openCloseCounter / openCloseTime,
-                        Gdx.graphics.width.toFloat(),
-                        Gdx.graphics.width - handler.UI.width.toFloat()
+                        TerrarumGDX.WIDTH.toFloat(),
+                        TerrarumGDX.WIDTH - handler.UI.width.toFloat()
                 ).roundInt()
                 Position.BOTTOM -> handler!!.posY = Movement.fastPullOut(
                         handler.openCloseCounter / openCloseTime,
-                        Gdx.graphics.height.toFloat(),
-                        Gdx.graphics.height - handler.UI.height.toFloat()
+                        TerrarumGDX.HEIGHT.toFloat(),
+                        TerrarumGDX.HEIGHT - handler.UI.height.toFloat()
                 ).roundInt()
             }
         }
@@ -122,13 +122,13 @@ interface UICanvas {
                 ).roundInt()
                 Position.RIGHT -> handler!!.posX = Movement.fastPullOut(
                         handler.openCloseCounter / openCloseTime,
-                        Gdx.graphics.width - handler.UI.width.toFloat(),
-                        Gdx.graphics.width.toFloat()
+                        TerrarumGDX.WIDTH - handler.UI.width.toFloat(),
+                        TerrarumGDX.WIDTH.toFloat()
                 ).roundInt()
                 Position.BOTTOM -> handler!!.posY = Movement.fastPullOut(
                         handler.openCloseCounter / openCloseTime,
-                        Gdx.graphics.height - handler.UI.height.toFloat(),
-                        Gdx.graphics.height.toFloat()
+                        TerrarumGDX.HEIGHT - handler.UI.height.toFloat(),
+                        TerrarumGDX.HEIGHT.toFloat()
                 ).roundInt()
             }
         }
@@ -136,16 +136,16 @@ interface UICanvas {
             when (position) {
                 Position.LEFT -> handler!!.posX = 0
                 Position.TOP -> handler!!.posY = 0
-                Position.RIGHT -> handler!!.posX = Gdx.graphics.width - handler.UI.width
-                Position.BOTTOM -> handler!!.posY = Gdx.graphics.height - handler.UI.height
+                Position.RIGHT -> handler!!.posX = TerrarumGDX.WIDTH - handler.UI.width
+                Position.BOTTOM -> handler!!.posY = TerrarumGDX.HEIGHT - handler.UI.height
             }
         }
         fun endClosingPopOut(handler: UIHandler?, position: Position) {
             when (position) {
                 Position.LEFT -> handler!!.posX = -handler.UI.width
                 Position.TOP -> handler!!.posY = -handler.UI.height
-                Position.RIGHT -> handler!!.posX = Gdx.graphics.width
-                Position.BOTTOM -> handler!!.posY = Gdx.graphics.height
+                Position.RIGHT -> handler!!.posX = TerrarumGDX.WIDTH
+                Position.BOTTOM -> handler!!.posY = TerrarumGDX.HEIGHT
             }
         }
 
diff --git a/src/net/torvald/terrarum/weather/WeatherMixer.kt b/src/net/torvald/terrarum/weather/WeatherMixer.kt
index 0679e7b9e..4c7ea38fe 100644
--- a/src/net/torvald/terrarum/weather/WeatherMixer.kt
+++ b/src/net/torvald/terrarum/weather/WeatherMixer.kt
@@ -83,7 +83,7 @@ object WeatherMixer {
                 kotlin.repeat(4) {
                     // 4 seems good
                     val rainParticle = ParticleTestRain(
-                            playerPos.x + HQRNG().nextInt(Gdx.graphics.width) - TerrarumGDX.HALFW,
+                            playerPos.x + HQRNG().nextInt(TerrarumGDX.WIDTH) - TerrarumGDX.HALFW,
                             playerPos.y - TerrarumGDX.HALFH
                     )
                     TerrarumGDX.ingame!!.addParticle(rainParticle)
@@ -121,8 +121,8 @@ object WeatherMixer {
         TerrarumGDX.inShapeRenderer {
             it.rect(
                     0f, 0f,
-                    Gdx.graphics.width.toFloat(),
-                    Gdx.graphics.height.toFloat(),
+                    TerrarumGDX.WIDTH.toFloat(),
+                    TerrarumGDX.HEIGHT.toFloat(),
                     getGradientColour(skyboxColourMap, 1, timeNow),
                     getGradientColour(skyboxColourMap, 1, timeNow),
                     getGradientColour(skyboxColourMap, 0, timeNow),
diff --git a/src/net/torvald/terrarum/worlddrawer/FeaturesDrawer.kt b/src/net/torvald/terrarum/worlddrawer/FeaturesDrawer.kt
index 46e660ecd..c6b1607c3 100644
--- a/src/net/torvald/terrarum/worlddrawer/FeaturesDrawer.kt
+++ b/src/net/torvald/terrarum/worlddrawer/FeaturesDrawer.kt
@@ -47,7 +47,7 @@ object FeaturesDrawer {
      * usually targeted for the environmental temperature (desert/winterland), hence the name.
      */
     fun drawEnvOverlay(batch: SpriteBatch) {
-        val onscreen_tiles_max = FastMath.ceil(Gdx.graphics.height * Gdx.graphics.width / FastMath.sqr (TILE_SIZE.toFloat())) * 2
+        val onscreen_tiles_max = FastMath.ceil(TerrarumGDX.HEIGHT * TerrarumGDX.WIDTH / FastMath.sqr (TILE_SIZE.toFloat())) * 2
         val onscreen_tiles_cap = onscreen_tiles_max / 4f
         val onscreen_cold_tiles = BlockStats.getCount(*TILES_COLD).toFloat()
         val onscreen_warm_tiles = BlockStats.getCount(*TILES_WARM).toFloat()
@@ -62,8 +62,8 @@ object FeaturesDrawer {
         batch.color = ColourTemp(colTemp)
         batch.fillRect(WorldCamera.x * zoom,
                 WorldCamera.y * zoom,
-                Gdx.graphics.width * if (zoom < 1) 1f / zoom else zoom,
-                Gdx.graphics.height * if (zoom < 1) 1f / zoom else zoom
+                TerrarumGDX.WIDTH * if (zoom < 1) 1f / zoom else zoom,
+                TerrarumGDX.HEIGHT * if (zoom < 1) 1f / zoom else zoom
         )
     }
 
diff --git a/src/net/torvald/terrarum/worlddrawer/LightmapRenderer.kt b/src/net/torvald/terrarum/worlddrawer/LightmapRenderer.kt
index f26440f72..36611ef8e 100644
--- a/src/net/torvald/terrarum/worlddrawer/LightmapRenderer.kt
+++ b/src/net/torvald/terrarum/worlddrawer/LightmapRenderer.kt
@@ -34,9 +34,9 @@ object LightmapRenderer {
 
     // TODO resize(int, int) -aware
 
-    val LIGHTMAP_WIDTH = TerrarumGDX.ingame!!.ZOOM_MINIMUM.inv().times(Gdx.graphics.width)
+    val LIGHTMAP_WIDTH = TerrarumGDX.ingame!!.ZOOM_MINIMUM.inv().times(TerrarumGDX.WIDTH)
             .div(FeaturesDrawer.TILE_SIZE).ceil() + overscan_open * 2 + 3
-    val LIGHTMAP_HEIGHT = TerrarumGDX.ingame!!.ZOOM_MINIMUM.inv().times(Gdx.graphics.height)
+    val LIGHTMAP_HEIGHT = TerrarumGDX.ingame!!.ZOOM_MINIMUM.inv().times(TerrarumGDX.HEIGHT)
             .div(FeaturesDrawer.TILE_SIZE).ceil() + overscan_open * 2 + 3
 
     /**
@@ -351,7 +351,7 @@ object LightmapRenderer {
                                 (x * DRAW_TILE_SIZE).round().toFloat(),
                                 (y * DRAW_TILE_SIZE).round().toFloat(),
                                 (DRAW_TILE_SIZE.ceil() * sameLevelCounter).toFloat(),
-                                DRAW_TILE_SIZE.ceil().toFloat()
+                                DRAW_TILE_SIZE.ceil().toFloat() + 1f
                         )
 
                         x += sameLevelCounter - 1
diff --git a/src/net/torvald/terrarum/worlddrawer/WorldCamera.kt b/src/net/torvald/terrarum/worlddrawer/WorldCamera.kt
index 02e980c97..c744dd99a 100644
--- a/src/net/torvald/terrarum/worlddrawer/WorldCamera.kt
+++ b/src/net/torvald/terrarum/worlddrawer/WorldCamera.kt
@@ -3,7 +3,12 @@ package net.torvald.terrarum.worlddrawer
 import com.badlogic.gdx.Gdx
 import com.jme3.math.FastMath
 import net.torvald.terrarum.TerrarumGDX
+import net.torvald.terrarum.gameactors.ceilInt
+import net.torvald.terrarum.gameactors.floor
+import net.torvald.terrarum.gameactors.floorInt
+import net.torvald.terrarum.gameactors.roundInt
 import net.torvald.terrarum.gameworld.GameWorld
+import net.torvald.terrarum.round
 
 /**
  * Created by minjaesong on 2016-12-30.
@@ -34,26 +39,21 @@ object WorldCamera {
 
             val player = TerrarumGDX.ingame!!.player
 
-            width = FastMath.ceil(Gdx.graphics.width / TerrarumGDX.ingame!!.screenZoom) // div, not mul
-            height = FastMath.ceil(Gdx.graphics.height / TerrarumGDX.ingame!!.screenZoom)
+            width = FastMath.ceil(TerrarumGDX.WIDTH / TerrarumGDX.ingame!!.screenZoom) // div, not mul
+            height = FastMath.ceil(TerrarumGDX.HEIGHT / TerrarumGDX.ingame!!.screenZoom)
 
             // position - (WH / 2)
-            x = Math.round(// X only: ROUNDWORLD implementation
-                    (player?.hitbox?.centeredX?.toFloat() ?: 0f) - width / 2)
-            y = Math.round(FastMath.clamp(
+            x = (// X only: ROUNDWORLD implementation
+                    (player?.hitbox?.centeredX?.toFloat() ?: 0f) - width / 2).roundInt()
+            y = (FastMath.clamp(
                     (player?.hitbox?.centeredY?.toFloat() ?: 0f) - height / 2,
                     TILE_SIZE.toFloat(),
                     world!!.height * TILE_SIZE - height - TILE_SIZE.toFloat()
-            ))
+            )).roundInt()
 
 
-            gdxCamX = Math.round(// X only: ROUNDWORLD implementation
-                    (player?.hitbox?.centeredX?.toFloat() ?: 0f)).toFloat()
-            gdxCamY = Math.round(FastMath.clamp(
-                    (player?.hitbox?.centeredY?.toFloat() ?: 0f),
-                    TILE_SIZE.toFloat(),
-                    world!!.height * TILE_SIZE - height - TILE_SIZE.toFloat()
-            )).toFloat()
+            gdxCamX = x + (width / 2f).round()
+            gdxCamY = y + (height / 2f).round()
         }
     }
 }
\ No newline at end of file