diff --git a/src/net/torvald/UnsafePtr.kt b/src/net/torvald/UnsafePtr.kt
index febd1fb0d..d6b4a625a 100644
--- a/src/net/torvald/UnsafePtr.kt
+++ b/src/net/torvald/UnsafePtr.kt
@@ -7,7 +7,7 @@ import sun.misc.Unsafe
  * Created by minjaesong on 2019-06-21.
  */
 
-object UnsafeHelper {
+internal object UnsafeHelper {
     val unsafe: Unsafe
 
     init {
@@ -43,7 +43,7 @@ object UnsafeHelper {
  *
  * Use of hashCode() is forbidden, use the pointer instead.
  */
-class UnsafePtr(pointer: Long, allocSize: Long) {
+internal class UnsafePtr(pointer: Long, allocSize: Long) {
     var destroyed = false
         private set
 
diff --git a/src/net/torvald/terrarum/DefaultConfig.kt b/src/net/torvald/terrarum/DefaultConfig.kt
index c8d45f3e5..e95d1583b 100644
--- a/src/net/torvald/terrarum/DefaultConfig.kt
+++ b/src/net/torvald/terrarum/DefaultConfig.kt
@@ -82,6 +82,7 @@ object DefaultConfig {
         // so these keys are treated as the same.
         // FOR ~~FUCKS~~ERGONOMICS' SAKE DON'T USE CTRL AND ALT AS A KEY!
         jsonObject.add("keyquickselalt", keyquickselalt)
+        jsonObject.addProperty("mousequicksel", Input.Buttons.MIDDLE) // middle click to open pie menu
 
         jsonObject.addProperty("keyjump", Input.Keys.SPACE)
 
diff --git a/src/net/torvald/terrarum/gamecontroller/IngameController.kt b/src/net/torvald/terrarum/gamecontroller/IngameController.kt
index bce854154..4d7e2e046 100644
--- a/src/net/torvald/terrarum/gamecontroller/IngameController.kt
+++ b/src/net/torvald/terrarum/gamecontroller/IngameController.kt
@@ -172,7 +172,7 @@ class IngameController(val terrarumIngame: TerrarumIngame) : InputAdapter() {
         }
 
         // pie menu
-        if (button == AppLoader.getConfigInt("mousesecondary")) {
+        if (button == AppLoader.getConfigInt("mousequicksel")) {
             terrarumIngame.uiPieMenu.setAsClose()
             terrarumIngame.uiQuickBar.setAsOpen()
         }
@@ -206,7 +206,7 @@ class IngameController(val terrarumIngame: TerrarumIngame) : InputAdapter() {
         terrarumIngame.uiContainer.forEach { it.touchDown(screenX, screenY, pointer, button) }
 
         // pie menu
-        if (button == AppLoader.getConfigInt("mousesecondary")) {
+        if (button == AppLoader.getConfigInt("mousequicksel")) {
             terrarumIngame.uiPieMenu.setAsOpen()
             terrarumIngame.uiQuickBar.setAsClose()
         }
diff --git a/src/net/torvald/terrarum/tests/WorldgenNoiseSandbox.kt b/src/net/torvald/terrarum/tests/WorldgenNoiseSandbox.kt
index 92614250b..8935ba1a5 100644
--- a/src/net/torvald/terrarum/tests/WorldgenNoiseSandbox.kt
+++ b/src/net/torvald/terrarum/tests/WorldgenNoiseSandbox.kt
@@ -247,14 +247,14 @@ fun main(args: Array<String>) {
     LwjglApplication(WorldgenNoiseSandbox(), appConfig)
 }
 
-interface NoiseMaker {
+internal interface NoiseMaker {
     fun draw(x: Int, y: Int, noiseValue: List<Double>, outTex: UnsafePtr)
     fun getGenerator(seed: Long, params: Any): List<Joise>
 }
 
 val locklock = java.lang.Object()
 
-object BiomeMaker : NoiseMaker {
+internal object BiomeMaker : NoiseMaker {
 
     override fun draw(x: Int, y: Int, noiseValue: List<Double>, outTex: UnsafePtr) {
         val colPal = biomeColors
@@ -303,7 +303,7 @@ object BiomeMaker : NoiseMaker {
 }
 
 // http://accidentalnoise.sourceforge.net/minecraftworlds.html
-object AccidentalCave {
+internal object AccidentalCave {
 
     private infix fun Color.mul(other: Color) = this.mul(other)
 
diff --git a/src/net/torvald/terrarum/worlddrawer/LightmapRendererNew.kt b/src/net/torvald/terrarum/worlddrawer/LightmapRendererNew.kt
index 1006e5481..14a422b7b 100644
--- a/src/net/torvald/terrarum/worlddrawer/LightmapRendererNew.kt
+++ b/src/net/torvald/terrarum/worlddrawer/LightmapRendererNew.kt
@@ -315,7 +315,7 @@ object LightmapRenderer {
 
 
                 r3();r4();r1();r2();r3();
-                val for_x_middle = (for_x_start + for_x_end) / 2
+                //val for_x_middle = (for_x_start + for_x_end) / 2
                 //val for_y_middle = (for_y_start + for_y_end) / 2