diff --git a/src/main/kotlin/de/bixilon/pixlyzer/physics/PhysicsExtractor.kt b/src/main/kotlin/de/bixilon/pixlyzer/physics/PhysicsExtractor.kt
index 93abe36..c8b5767 100644
--- a/src/main/kotlin/de/bixilon/pixlyzer/physics/PhysicsExtractor.kt
+++ b/src/main/kotlin/de/bixilon/pixlyzer/physics/PhysicsExtractor.kt
@@ -1,10 +1,7 @@
 package de.bixilon.pixlyzer.physics
 
 import de.bixilon.pixlyzer.PixLyzer
-import de.bixilon.pixlyzer.physics.tests.AbstractTest
-import de.bixilon.pixlyzer.physics.tests.EmptyTest
-import de.bixilon.pixlyzer.physics.tests.GravityTest
-import de.bixilon.pixlyzer.physics.tests.PhysicsTest
+import de.bixilon.pixlyzer.physics.tests.*
 import de.bixilon.pixlyzer.physics.tests.packet.PacketReceiveTest
 import java.lang.reflect.Method
 import kotlin.system.exitProcess
@@ -14,6 +11,7 @@ object PhysicsExtractor {
         EmptyTest::class.java,
         PacketReceiveTest::class.java,
         GravityTest::class.java,
+        AttributeTest::class.java,
     )
 
 
diff --git a/src/main/kotlin/de/bixilon/pixlyzer/physics/PhysicsUtil.kt b/src/main/kotlin/de/bixilon/pixlyzer/physics/PhysicsUtil.kt
index ccc810b..13618b5 100644
--- a/src/main/kotlin/de/bixilon/pixlyzer/physics/PhysicsUtil.kt
+++ b/src/main/kotlin/de/bixilon/pixlyzer/physics/PhysicsUtil.kt
@@ -43,7 +43,7 @@ object PhysicsUtil {
     private val SIMPLE_OPTION_BOOLEAN = SIMPLE_OPTION?.getMethod("ofBoolean", String::class.java, Boolean::class.java)?.apply { isAccessible = true }
     private val PLAYER_ENTRY = getField(AbstractClientPlayerEntity::class.java, "playerListEntry") ?: getField(ClientPlayerEntity::class.java, "playerListEntry", "cachedScoreboardEntry")
 
-    private val PROFILE_KEYS = getClass("net.minecraft.client.util.ProfileKeys")
+    private val PROFILE_KEYS = getClass("net.minecraft.client.util.ProfileKeysImpl", "net.minecraft.client.util.ProfileKeys")
     private val PROFILE_KEYS_KEY_FUTURE = getField(PROFILE_KEYS, "keyFuture")
 
 
@@ -51,7 +51,6 @@ object PhysicsUtil {
 
     private val SPRINT_KEY = getField(GameOptions::class.java, "sprintKey", "sprintToggle", "keySprint")
 
-    private val REGISTRY_ENTRY = "net.minecraft.util.registry.RegistryEntry"
 
     fun createChunkManager(native: ClientWorld): ClientChunkManager {
         val chunkManager = OBJENESIS.newInstance(ClientChunkManager::class.java)
@@ -77,7 +76,7 @@ object PhysicsUtil {
         native.setDimension()
         native.entityManager = ClientEntityManager(Entity::class.java, native.ClientEntityHandler())
 
-        native.biomeAccess = BiomeAccess(BiomeAccess.Storage { biomeX, biomeY, biomeZ -> return@Storage RegistryEntry.Direct<Biome>(null) }, 0L)
+        native.biomeAccess = BiomeAccess(BiomeAccess.Storage { _, _, _ -> return@Storage RegistryEntry.Direct<Biome>(null) }, 0L)
         //native.biomeAccess = BiomeAccess(BiomeAccess.Storage { biomeX, biomeY, biomeZ -> return@Storage null }, 0L, BiomeAccessType {_,_,_,_,_->null})
 
         return MinecraftWorld(native)
diff --git a/src/main/kotlin/de/bixilon/pixlyzer/physics/input/CustomInput.kt b/src/main/kotlin/de/bixilon/pixlyzer/physics/input/CustomInput.kt
index 977fe1f..877b100 100644
--- a/src/main/kotlin/de/bixilon/pixlyzer/physics/input/CustomInput.kt
+++ b/src/main/kotlin/de/bixilon/pixlyzer/physics/input/CustomInput.kt
@@ -5,9 +5,9 @@ import net.minecraft.client.input.KeyboardInput
 
 class CustomInput : Input() {
 
-    override fun tick(slowDown: Boolean) {
-        tick(slowDown, 0.3f)
-    }
+     fun tick(slowDown: Boolean) {
+         tick(slowDown, 0.3f)
+     }
 
     fun getMovementMultiplier(positive: Boolean, negative: Boolean): Float {
         return if (positive == negative) {
@@ -17,7 +17,7 @@ class CustomInput : Input() {
         }
     }
 
-    fun tick(slowDown: Boolean, multiplier: Float) {
+    override fun tick(slowDown: Boolean, multiplier: Float) {
         movementForward = getMovementMultiplier(pressingForward, pressingBack)
         movementSideways = getMovementMultiplier(pressingLeft, pressingRight)
         if (slowDown) {