diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/core/collect/Vec3iHashStrategy.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/util/collect/Vec3iHashStrategy.kt
similarity index 91%
rename from src/main/kotlin/ru/dbotthepony/mc/otm/core/collect/Vec3iHashStrategy.kt
rename to src/main/kotlin/ru/dbotthepony/mc/otm/util/collect/Vec3iHashStrategy.kt
index 1686f5734..e230a3ac4 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/core/collect/Vec3iHashStrategy.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/util/collect/Vec3iHashStrategy.kt
@@ -1,8 +1,7 @@
-package ru.dbotthepony.mc.otm.core.collect
+package ru.dbotthepony.mc.otm.util.collect
 
 import it.unimi.dsi.fastutil.Hash
 import it.unimi.dsi.fastutil.HashCommon
-import net.minecraft.core.BlockPos
 import net.minecraft.core.Vec3i
 
 object Vec3iHashStrategy : Hash.Strategy<Vec3i>, Comparator<Vec3i> {
diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/worldgen/Ext.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/worldgen/Ext.kt
index 0da07df44..28fc596dd 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/worldgen/Ext.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/worldgen/Ext.kt
@@ -4,7 +4,7 @@ import net.minecraft.core.BlockPos
 import net.minecraft.core.Holder
 import net.minecraft.world.level.levelgen.feature.ConfiguredFeature
 import net.minecraft.world.level.levelgen.placement.PlacementModifier
-import ru.dbotthepony.mc.otm.core.collect.Vec3iHashStrategy
+import ru.dbotthepony.mc.otm.util.collect.Vec3iHashStrategy
 import ru.dbotthepony.mc.otm.worldgen.feature.EnhancedFeature
 import ru.dbotthepony.mc.otm.worldgen.placement.EnhancedPlacement
 
diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/worldgen/placement/EllipsoidPlacement.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/worldgen/placement/EllipsoidPlacement.kt
index 202b8765f..f2b411cb7 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/worldgen/placement/EllipsoidPlacement.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/worldgen/placement/EllipsoidPlacement.kt
@@ -7,19 +7,15 @@ import net.minecraft.util.RandomSource
 import net.minecraft.util.valueproviders.ConstantFloat
 import net.minecraft.util.valueproviders.FloatProvider
 import net.minecraft.util.valueproviders.IntProvider
-import net.minecraft.util.valueproviders.UniformFloat
 import net.minecraft.world.level.levelgen.placement.PlacementContext
 import net.minecraft.world.level.levelgen.placement.PlacementModifier
 import net.minecraft.world.level.levelgen.placement.PlacementModifierType
-import ru.dbotthepony.mc.otm.core.collect.Vec3iHashStrategy
+import ru.dbotthepony.mc.otm.util.collect.Vec3iHashStrategy
 import ru.dbotthepony.mc.otm.core.math.VECTOR_POSITIVE_X
 import ru.dbotthepony.mc.otm.core.math.VECTOR_POSITIVE_Z
-import ru.dbotthepony.mc.otm.core.math.VECTOR_RIGHT
 import ru.dbotthepony.mc.otm.core.math.VECTOR_UP
-import ru.dbotthepony.mc.otm.core.math.Vector
 import ru.dbotthepony.mc.otm.core.math.rotate
 import ru.dbotthepony.mc.otm.core.math.rotateAroundThis
-import ru.dbotthepony.mc.otm.core.nextDouble
 import ru.dbotthepony.mc.otm.data.world.BooleanProvider
 import ru.dbotthepony.mc.otm.registry.data.MPlacementModifiers
 import ru.dbotthepony.mc.otm.worldgen.EnhancedPlacementContext