diff --git a/gradle.properties b/gradle.properties
index 7613a43..1ff0d76 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,5 +2,5 @@ group=com.derongan.minecraft
 version=0.3
 kotlinVersion=1.5.31
 serverVersion=1.17.1-R0.1-SNAPSHOT
-idofrontVersion=0.7.35
-idofrontConventions=1.5.31-35
+idofrontVersion=0.7.38
+idofrontConventions=1.5.31-38
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/world/Point.kt b/src/main/java/com/derongan/minecraft/deeperworld/world/Point.kt
deleted file mode 100644
index e8674db..0000000
--- a/src/main/java/com/derongan/minecraft/deeperworld/world/Point.kt
+++ /dev/null
@@ -1,18 +0,0 @@
-package com.derongan.minecraft.deeperworld.world
-
-import kotlin.math.sqrt
-
-/**
- * Represents a single X/Z column in a minecraft world.
- */
-data class Point(val x: Int, val z: Int) {
-    operator fun plus(other: Point) = Point(x + other.x, z + other.z)
-
-    operator fun minus(other: Point) = Point(x - other.x, z - other.z)
-
-    operator fun div(o: Float) = Point((x / o).toInt(), (z / o).toInt())
-
-    operator fun div(o: Int) = Point(x / o, z / o)
-
-    val length get() = sqrt((x * x + z * z).toDouble())
-}
\ No newline at end of file
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/DeeperCommandExecutor.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/DeeperCommandExecutor.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/DeeperCommandExecutor.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/DeeperCommandExecutor.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/DeeperContext.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/DeeperContext.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/DeeperContext.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/DeeperContext.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/DeeperWorldPlugin.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/DeeperWorldPlugin.kt
similarity index 98%
rename from src/main/java/com/derongan/minecraft/deeperworld/DeeperWorldPlugin.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/DeeperWorldPlugin.kt
index e632879..dc8b183 100644
--- a/src/main/java/com/derongan/minecraft/deeperworld/DeeperWorldPlugin.kt
+++ b/src/main/kotlin/com/derongan/minecraft/deeperworld/DeeperWorldPlugin.kt
@@ -18,7 +18,6 @@ import com.mineinabyss.idofront.commands.execution.ExperimentalCommandDSL
 import com.mineinabyss.idofront.plugin.registerEvents
 import com.mineinabyss.idofront.plugin.registerService
 import com.mineinabyss.idofront.slimjar.IdofrontSlimjar
-import com.mineinabyss.idofront.slimjar.LibraryLoaderInjector
 import com.okkero.skedule.schedule
 import org.bukkit.Material
 import org.bukkit.plugin.java.JavaPlugin
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/Helpers.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/Helpers.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/Helpers.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/Helpers.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/MinecraftConstants.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/MinecraftConstants.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/MinecraftConstants.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/MinecraftConstants.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/Permissions.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/Permissions.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/Permissions.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/Permissions.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/config/DeeperConfig.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/config/DeeperConfig.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/config/DeeperConfig.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/config/DeeperConfig.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/config/FallDamageConfig.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/config/FallDamageConfig.kt
similarity index 88%
rename from src/main/java/com/derongan/minecraft/deeperworld/config/FallDamageConfig.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/config/FallDamageConfig.kt
index 2365d4f..f392d2d 100644
--- a/src/main/java/com/derongan/minecraft/deeperworld/config/FallDamageConfig.kt
+++ b/src/main/kotlin/com/derongan/minecraft/deeperworld/config/FallDamageConfig.kt
@@ -1,7 +1,6 @@
 package com.derongan.minecraft.deeperworld.config
 
 import com.mineinabyss.idofront.time.TimeSpan
-import com.mineinabyss.idofront.time.TimeSpanSerializer
 import com.mineinabyss.idofront.time.ticks
 import kotlinx.serialization.Serializable
 
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/config/TimeConfig.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/config/TimeConfig.kt
similarity index 90%
rename from src/main/java/com/derongan/minecraft/deeperworld/config/TimeConfig.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/config/TimeConfig.kt
index dc98b7f..f3d4e9f 100644
--- a/src/main/java/com/derongan/minecraft/deeperworld/config/TimeConfig.kt
+++ b/src/main/kotlin/com/derongan/minecraft/deeperworld/config/TimeConfig.kt
@@ -4,7 +4,6 @@ package com.derongan.minecraft.deeperworld.config
 
 import com.mineinabyss.idofront.serialization.WorldSerializer
 import com.mineinabyss.idofront.time.TimeSpan
-import com.mineinabyss.idofront.time.TimeSpanSerializer
 import com.mineinabyss.idofront.time.seconds
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.UseSerializers
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/datastructures/Tree.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/datastructures/Tree.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/datastructures/Tree.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/datastructures/Tree.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/event/BlockSyncEvent.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/event/BlockSyncEvent.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/event/BlockSyncEvent.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/event/BlockSyncEvent.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/event/PlayerAscendEvent.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/event/PlayerAscendEvent.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/event/PlayerAscendEvent.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/event/PlayerAscendEvent.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/event/PlayerChangeSectionEvent.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/event/PlayerChangeSectionEvent.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/event/PlayerChangeSectionEvent.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/event/PlayerChangeSectionEvent.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/event/PlayerDescendEvent.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/event/PlayerDescendEvent.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/event/PlayerDescendEvent.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/event/PlayerDescendEvent.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/extensions/DeeperWorldExtensions.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/extensions/DeeperWorldExtensions.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/extensions/DeeperWorldExtensions.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/extensions/DeeperWorldExtensions.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/listeners/MovementListener.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/listeners/MovementListener.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/listeners/MovementListener.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/listeners/MovementListener.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/listeners/PlayerListener.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/listeners/PlayerListener.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/listeners/PlayerListener.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/listeners/PlayerListener.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/movement/BedrockBlockingInvalidTeleportHandler.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/movement/BedrockBlockingInvalidTeleportHandler.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/movement/BedrockBlockingInvalidTeleportHandler.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/movement/BedrockBlockingInvalidTeleportHandler.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/movement/InvalidTeleportHandler.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/movement/InvalidTeleportHandler.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/movement/InvalidTeleportHandler.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/movement/InvalidTeleportHandler.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/movement/MovementHandler.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/movement/MovementHandler.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/movement/MovementHandler.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/movement/MovementHandler.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/movement/SectionTeleportPacketAdapter.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/movement/SectionTeleportPacketAdapter.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/movement/SectionTeleportPacketAdapter.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/movement/SectionTeleportPacketAdapter.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/movement/TeleportHandler.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/movement/TeleportHandler.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/movement/TeleportHandler.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/movement/TeleportHandler.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/movement/TransitionTeleportHandler.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/movement/TransitionTeleportHandler.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/movement/TransitionTeleportHandler.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/movement/TransitionTeleportHandler.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/movement/UndoMovementInvalidTeleportHandler.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/movement/UndoMovementInvalidTeleportHandler.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/movement/UndoMovementInvalidTeleportHandler.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/movement/UndoMovementInvalidTeleportHandler.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/movement/transition/ConfigSectionChecker.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/movement/transition/ConfigSectionChecker.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/movement/transition/ConfigSectionChecker.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/movement/transition/ConfigSectionChecker.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/movement/transition/SectionChecker.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/movement/transition/SectionChecker.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/movement/transition/SectionChecker.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/movement/transition/SectionChecker.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/movement/transition/SectionTransition.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/movement/transition/SectionTransition.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/movement/transition/SectionTransition.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/movement/transition/SectionTransition.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/player/FallingDamageManager.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/player/FallingDamageManager.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/player/FallingDamageManager.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/player/FallingDamageManager.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/player/PlayerManagerImpl.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/player/PlayerManagerImpl.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/player/PlayerManagerImpl.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/player/PlayerManagerImpl.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/services/PlayerManager.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/services/PlayerManager.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/services/PlayerManager.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/services/PlayerManager.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/services/WorldManager.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/services/WorldManager.kt
similarity index 96%
rename from src/main/java/com/derongan/minecraft/deeperworld/services/WorldManager.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/services/WorldManager.kt
index d25a73e..cd5ffb2 100644
--- a/src/main/java/com/derongan/minecraft/deeperworld/services/WorldManager.kt
+++ b/src/main/kotlin/com/derongan/minecraft/deeperworld/services/WorldManager.kt
@@ -28,7 +28,7 @@ interface WorldManager {
      * @param world The world
      * @return The section or null if the location is not within a section.
      */
-    fun getSectionFor(x: Int, z: Int, world: World): Section?
+    fun getSectionFor(x: Int, y: Int, z: Int, world: World): Section?
 
     /**
      * Gets the section associated with the provided key
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/synchronization/ContainerSyncListener.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/synchronization/ContainerSyncListener.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/synchronization/ContainerSyncListener.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/synchronization/ContainerSyncListener.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/synchronization/ExploitPreventionListener.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/synchronization/ExploitPreventionListener.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/synchronization/ExploitPreventionListener.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/synchronization/ExploitPreventionListener.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/synchronization/SectionSyncListener.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/synchronization/SectionSyncListener.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/synchronization/SectionSyncListener.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/synchronization/SectionSyncListener.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/synchronization/Updaters.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/synchronization/Updaters.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/synchronization/Updaters.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/synchronization/Updaters.kt
diff --git a/src/main/kotlin/com/derongan/minecraft/deeperworld/world/Point.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/world/Point.kt
new file mode 100644
index 0000000..453bf30
--- /dev/null
+++ b/src/main/kotlin/com/derongan/minecraft/deeperworld/world/Point.kt
@@ -0,0 +1,14 @@
+package com.derongan.minecraft.deeperworld.world
+
+/**
+ * Represents a single X/Y/Z cube in a minecraft world.
+ */
+data class CubePoint(val x: Int, val y: Int, val z: Int) {
+    operator fun plus(other: CubePoint) = CubePoint(x + other.x, y + other.y, z + other.z)
+
+    operator fun minus(other: CubePoint) = CubePoint(x - other.x, y - other.y, z - other.z)
+
+    operator fun div(o: Float) = CubePoint((x / o).toInt(), (y / o).toInt(), (z / o).toInt())
+
+    operator fun div(o: Int) = CubePoint(x / o, y / o, z / o)
+}
\ No newline at end of file
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/world/Region.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/world/Region.kt
similarity index 51%
rename from src/main/java/com/derongan/minecraft/deeperworld/world/Region.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/world/Region.kt
index 6f3634a..df7970a 100644
--- a/src/main/java/com/derongan/minecraft/deeperworld/world/Region.kt
+++ b/src/main/kotlin/com/derongan/minecraft/deeperworld/world/Region.kt
@@ -4,8 +4,6 @@ import kotlinx.serialization.KSerializer
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.builtins.ListSerializer
 import kotlinx.serialization.builtins.serializer
-import kotlinx.serialization.descriptors.PrimitiveKind
-import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
 import kotlinx.serialization.descriptors.SerialDescriptor
 import kotlinx.serialization.encoding.Decoder
 import kotlinx.serialization.encoding.Encoder
@@ -13,17 +11,23 @@ import kotlin.math.max
 import kotlin.math.min
 
 /**
- * Represents a region of the world. Contains all Y values.
+ * Represents a region of the world.
  */
 @Serializable(with = RegionSerializer::class)
-class Region(val a: Point, val b: Point) {
-    constructor(ax: Int, az: Int, bx: Int, bz: Int) : this(Point(ax, az), Point(bx, bz))
+class Region(val a: CubePoint, val b: CubePoint) {
+    constructor(ax: Int, ay: Int, az: Int, bx: Int, by: Int, bz: Int) : this(
+        CubePoint(ax, ay, az),
+        CubePoint(bx, by, bz)
+    )
 
-    val center: Point get() = a.plus(b).div(2)
+    val center: CubePoint get() = a.plus(b).div(2)
 
-    fun contains(x: Int, z: Int): Boolean = x in min(a.x, b.x)..max(a.x, b.x) && z in min(a.z, b.z)..max(a.z, b.z)
+    fun contains(x: Int, y: Int, z: Int): Boolean =
+        x in min(a.x, b.x)..max(a.x, b.x) &&
+                y in min(a.y, b.y)..max(a.y, b.y) &&
+                z in min(a.z, b.z)..max(a.z, b.z)
 
-    operator fun contains(p: Point) = contains(p.x, p.z)
+    operator fun contains(p: CubePoint) = contains(p.x, p.y, p.z)
 }
 
 object RegionSerializer : KSerializer<Region> {
@@ -31,13 +35,17 @@ object RegionSerializer : KSerializer<Region> {
     override val descriptor: SerialDescriptor = serializer.descriptor
 
     override fun serialize(encoder: Encoder, value: Region) {
-        val (x, y) = value.a
-        val (x2, y2) = value.b
-        encoder.encodeSerializableValue(serializer, listOf(x, y, x2, y2))
+        val (x, y, z) = value.a
+        val (x2, y2, z2) = value.b
+        encoder.encodeSerializableValue(serializer, listOf(x, y, z, x2, y2, z2))
     }
 
     override fun deserialize(decoder: Decoder): Region {
-        val (x, y, x2, y2) = decoder.decodeSerializableValue(serializer)
-        return Region(x, y, x2, y2)
+        val (x, y, z, x2, y2, z2) = decoder.decodeSerializableValue(serializer)
+        return Region(x, y, z, x2, y2, z2)
     }
-}
\ No newline at end of file
+}
+
+private operator fun <E> List<E>.component6(): E = this[5]
+
+
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/world/WorldManagerImpl.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/world/WorldManagerImpl.kt
similarity index 86%
rename from src/main/java/com/derongan/minecraft/deeperworld/world/WorldManagerImpl.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/world/WorldManagerImpl.kt
index 5548f05..00eb5da 100644
--- a/src/main/java/com/derongan/minecraft/deeperworld/world/WorldManagerImpl.kt
+++ b/src/main/kotlin/com/derongan/minecraft/deeperworld/world/WorldManagerImpl.kt
@@ -29,11 +29,11 @@ class WorldManagerImpl(config: FileConfiguration) : WorldManager {
     override fun unregisterSection(key: SectionKey) = TODO()
 
     override fun getSectionFor(location: Location): Section? {
-        return getSectionFor(location.blockX, location.blockZ, location.world!!)
+        return getSectionFor(location.blockX, location.blockY, location.blockZ, location.world!!)
     }
 
-    override fun getSectionFor(x: Int, z: Int, world: World): Section? = //TODO consider performance
-        sectionMap.values.firstOrNull { it.world == world && it.region.contains(x, z) }
+    override fun getSectionFor(x: Int, y: Int, z: Int, world: World): Section? = //TODO consider performance
+        sectionMap.values.firstOrNull { it.world == world && it.region.contains(x, y, z) }
 
     override fun getSectionFor(key: SectionKey) = sectionMap[key]
     override fun getSectionFor(key: String) = sectionMap[CustomSectionKey(key)]
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/world/section/AbstractSectionKey.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/world/section/AbstractSectionKey.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/world/section/AbstractSectionKey.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/world/section/AbstractSectionKey.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/world/section/Section.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/world/section/Section.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/world/section/Section.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/world/section/Section.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/world/section/SectionKey.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/world/section/SectionKey.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/world/section/SectionKey.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/world/section/SectionKey.kt
diff --git a/src/main/java/com/derongan/minecraft/deeperworld/world/section/SectionUtils.kt b/src/main/kotlin/com/derongan/minecraft/deeperworld/world/section/SectionUtils.kt
similarity index 100%
rename from src/main/java/com/derongan/minecraft/deeperworld/world/section/SectionUtils.kt
rename to src/main/kotlin/com/derongan/minecraft/deeperworld/world/section/SectionUtils.kt
diff --git a/src/test/java/com/derongan/minecraft/deeperworld/world/RegionTestU.kt b/src/test/java/com/derongan/minecraft/deeperworld/world/RegionTestU.kt
deleted file mode 100644
index 9ef42bd..0000000
--- a/src/test/java/com/derongan/minecraft/deeperworld/world/RegionTestU.kt
+++ /dev/null
@@ -1,19 +0,0 @@
-package com.derongan.minecraft.deeperworld.world
-
-import org.junit.jupiter.api.Assertions.assertFalse
-import org.junit.jupiter.api.Assertions.assertTrue
-import org.junit.jupiter.api.Test
-
-class RegionTestU {
-    @Test
-    fun contains() {
-        val region = Region(-1, -1, 10, 10)
-        assertTrue(region.contains(-1, -1))
-        assertTrue(region.contains(10, 10))
-        assertTrue(region.contains(8, 5))
-        assertFalse(region.contains(-2, 5))
-        assertFalse(region.contains(11, 5))
-        assertFalse(region.contains(5, -2))
-        assertFalse(region.contains(5, 11))
-    }
-}
diff --git a/src/test/kotlin/com/derongan/minecraft/deeperworld/world/RegionTestU.kt b/src/test/kotlin/com/derongan/minecraft/deeperworld/world/RegionTestU.kt
new file mode 100644
index 0000000..8bca6b4
--- /dev/null
+++ b/src/test/kotlin/com/derongan/minecraft/deeperworld/world/RegionTestU.kt
@@ -0,0 +1,19 @@
+package com.derongan.minecraft.deeperworld.world
+
+import org.junit.jupiter.api.Assertions.assertFalse
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.Test
+
+class RegionTestU {
+    @Test
+    fun contains() {
+        val region = Region(-1, 0, -1, 10, 10, 10)
+        assertTrue(region.contains(-1, 0, -1))
+        assertTrue(region.contains(10, 0, 10))
+        assertTrue(region.contains(8, 2, 5))
+        assertFalse(region.contains(-2, 5, 5))
+        assertFalse(region.contains(11, -3, 5))
+        assertFalse(region.contains(5, 5, -2))
+        assertFalse(region.contains(5, -7, 11))
+    }
+}