diff --git a/pom.xml b/pom.xml
index 760b92e..f0f6522 100644
--- a/pom.xml
+++ b/pom.xml
@@ -15,7 +15,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <kotlin.code.style>official</kotlin.code.style>
         <kotlin.compiler.jvmTarget>1.8</kotlin.compiler.jvmTarget>
-        <minecraft.version>1.14.4</minecraft.version>
+        <minecraft.version>1.14.3</minecraft.version>
     </properties>
 
     <repositories>
@@ -78,7 +78,7 @@
             <artifactId>client</artifactId>
             <version>1</version>
             <scope>system</scope>
-            <systemPath>${project.basedir}/wrapper/data/data/${minecraft.version}_yarn/${minecraft.version}_yarn_client.jar</systemPath>
+            <systemPath>${project.basedir}/wrapper/data/data/${minecraft.version}_yarn/${minecraft.version}-named.jar</systemPath>
         </dependency>
 
         <dependency>
@@ -86,7 +86,7 @@
             <artifactId>server</artifactId>
             <version>1</version>
             <scope>system</scope>
-            <systemPath>${project.basedir}/wrapper/data/data/${minecraft.version}_yarn/${minecraft.version}_server.jar</systemPath>
+            <systemPath>${project.basedir}/wrapper/data/data/${minecraft.version}_yarn/${minecraft.version}_server_mojang.jar</systemPath>
         </dependency>
         <dependency>
             <groupId>org.objenesis</groupId>
diff --git a/src/main/kotlin/de/bixilon/pixlyzer/EntitySpawner.kt b/src/main/kotlin/de/bixilon/pixlyzer/EntitySpawner.kt
index 746c2b8..c41a3ac 100644
--- a/src/main/kotlin/de/bixilon/pixlyzer/EntitySpawner.kt
+++ b/src/main/kotlin/de/bixilon/pixlyzer/EntitySpawner.kt
@@ -7,6 +7,7 @@ import de.bixilon.pixlyzer.util.ReflectionUtil.setFinalField
 import net.minecraft.client.network.OtherClientPlayerEntity
 import net.minecraft.entity.Entity
 import net.minecraft.entity.EntityType
+import net.minecraft.entity.decoration.ItemFrameEntity
 import net.minecraft.scoreboard.Scoreboard
 import net.minecraft.world.World
 import net.minecraft.world.border.WorldBorder
@@ -18,21 +19,29 @@ import java.util.*
 object EntitySpawner {
 
     fun summonEntity(entityType: EntityType<*>): Entity {
-        val factory = FACTORY_FIELD.get(entityType) as EntityType.EntityFactory<Entity>
-        val entity = factory.create(entityType as EntityType<Entity>?, CLIENT_LEVEL)
+        when (entityType) {
+            EntityType.PLAYER -> return OtherClientPlayerEntity::class.java.getConstructor(levelClass, GameProfile::class.java).newInstance(CLIENT_LEVEL, GameProfile(UUID.randomUUID(), "dummy"))
+            EntityType.LIGHTNING_BOLT -> return OBJENSIS.newInstance(LIGHTNING_BOLT_CLASS) as Entity
+            EntityType.FISHING_BOBBER -> return OBJENSIS.newInstance(FISHING_HOOK_CLASS) as Entity
+            EntityType.ITEM_FRAME -> return OBJENSIS.newInstance(ItemFrameEntity::class.java) as Entity
+        }
+
+        val entity = try {
+            ENTITY_CREATE_METHOD?.invoke(FACTORY_FIELD.get(entityType), entityType, CLIENT_LEVEL) as Entity?
+        } catch (exception: Exception) {
+            exception.printStackTrace()
+            TODO()
+        }
 
 
         if (entity != null) {
             return entity
         }
-        return when (entityType) {
-            EntityType.PLAYER -> OtherClientPlayerEntity::class.java.getConstructor(levelClass, GameProfile::class.java).newInstance(CLIENT_LEVEL, GameProfile(UUID.randomUUID(), "dummy"))
-            EntityType.LIGHTNING_BOLT -> OBJENSIS.newInstance(LIGHTNING_BOLT_CLASS) as Entity
-            EntityType.FISHING_BOBBER -> OBJENSIS.newInstance(FISHING_HOOK_CLASS) as Entity
-            else -> TODO("Entity type: $entityType")
-        }
+
+        TODO("Entity type: $entityType")
     }
 
+
     private val LIGHTNING_BOLT_CLASS = getClass("net.minecraft.entity.LightningEntity")!!
     private val FISHING_HOOK_CLASS = getClass("net.minecraft.entity.projectile.FishingBobberEntity")!!
 
@@ -40,9 +49,21 @@ object EntitySpawner {
 
     private val FACTORY_FIELD = getField(EntityType::class.java, "factory")!!
 
+    private val ENTITY_CREATE_METHOD = try {
+        getClass("net.minecraft.entity.EntityType\$EntityFactory")?.getDeclaredMethod("create", EntityType::class.java, World::class.java)
+    } catch (exception: Exception) {
+        null
+    }
+
+    private val LEGACY_ENTITY_CREATE_METHOD = try {
+        getClass("net.minecraft.entity.EntityType\$EntityFactory")?.getDeclaredMethod("create", EntityType::class.java, World::class.java)
+    } catch (exception: Exception) {
+        null
+    }
+
     var OBJENSIS: Objenesis = ObjenesisStd()
 
-    val CLIENT_LEVEL = OBJENSIS.newInstance(levelClass) as World
+    private val CLIENT_LEVEL = OBJENSIS.newInstance(levelClass) as World
 
 
     init {
diff --git a/src/main/kotlin/de/bixilon/pixlyzer/PixLyzer.kt b/src/main/kotlin/de/bixilon/pixlyzer/PixLyzer.kt
index b7e296b..baf68ef 100644
--- a/src/main/kotlin/de/bixilon/pixlyzer/PixLyzer.kt
+++ b/src/main/kotlin/de/bixilon/pixlyzer/PixLyzer.kt
@@ -70,7 +70,13 @@ object PixLyzer {
             val startTime = System.currentTimeMillis()
             println("Starting ${generator.name}...")
 
-            generator.generate()
+            try {
+                generator.generate()
+            } catch (exception: IllegalArgumentException) {
+                // not implemented
+                println("Skipping ${generator.name}: ${exception.message}")
+                continue
+            }
             if (generator.data.size() == 0) {
                 error("${generator.fileName} has 0 entries!")
             }
@@ -125,7 +131,7 @@ object PixLyzer {
 
             val assetsIndexJson = Util.readJsonFile(assetsIndex.absolutePath + ".json")
 
-            val versionId = MinecraftVersion.create().id
+            val versionId = MinecraftVersion.create().name // ToDo: Should be id, but in 1.14 there is a hash in the id???
 
             assetsIndexJson.addProperty(versionId, hash)
 
diff --git a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/BlockEntityGenerator.kt b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/BlockEntityGenerator.kt
index 0d1a9a1..33c4cb9 100644
--- a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/BlockEntityGenerator.kt
+++ b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/BlockEntityGenerator.kt
@@ -3,6 +3,7 @@ package de.bixilon.pixlyzer.generator.generators
 import com.google.gson.JsonArray
 import com.google.gson.JsonObject
 import de.bixilon.pixlyzer.generator.Generator
+import de.bixilon.pixlyzer.util.ReflectionUtil
 import net.minecraft.block.Block
 import net.minecraft.block.entity.BlockEntityType
 import net.minecraft.util.registry.Registry
@@ -16,7 +17,7 @@ object BlockEntityGenerator : Generator(
             val blockEntityData = JsonObject()
             blockEntityData.addProperty("id", Registry.BLOCK_ENTITY.getRawId(blockEntityType))
 
-            (BLOCK_ENTITY_VALID_BLOCKS_FIELD.get(blockEntityType) as Set<Block>).let {
+            (BLOCK_ENTITY_VALID_BLOCKS_FIELD?.get(blockEntityType) as Set<Block>?)?.let {
                 val blockTypes = JsonArray()
 
                 for (block in it) {
@@ -32,9 +33,5 @@ object BlockEntityGenerator : Generator(
         }
     }
 
-    private val BLOCK_ENTITY_VALID_BLOCKS_FIELD = BlockEntityType::class.java.getDeclaredField("blocks")
-
-    init {
-        BLOCK_ENTITY_VALID_BLOCKS_FIELD.isAccessible = true
-    }
+    private val BLOCK_ENTITY_VALID_BLOCKS_FIELD = ReflectionUtil.getField(BlockEntityType::class.java, "blocks")
 }
diff --git a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/BlockGenerator.kt b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/BlockGenerator.kt
index 5ae00f8..aba15e5 100644
--- a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/BlockGenerator.kt
+++ b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/BlockGenerator.kt
@@ -126,7 +126,9 @@ object BlockGenerator : Generator(
                 }
             }
 
-            val colorProperties = DEFAULT_BLOCK_COLORS.method_21592(block)
+            val hasColorProperties = (TINT_PROPERTIES_METHOD?.invoke(DEFAULT_BLOCK_COLORS, block) as Set<*>?)?.size?.let { it > 0 } ?: let {
+                true
+            }
 
             val states = JsonObject()
 
@@ -195,7 +197,7 @@ object BlockGenerator : Generator(
 
 
                 try {
-                    if (colorProperties.size > 0) {
+                    if (hasColorProperties) {
                         val tintColor = DEFAULT_BLOCK_COLORS.getColor(state, null, null)
                         if (tintColor == -1) {
                             throw IllegalStateException()
@@ -270,7 +272,7 @@ object BlockGenerator : Generator(
                         }
                         stateData.addProperty("large_collision_shape", it)
                     }
-                    IS_COLLISION_SHAPE_FULL_BLOCK.getBoolean(cache).let {
+                    IS_COLLISION_SHAPE_FULL_BLOCK?.getBoolean(cache)?.let {
                         if (!it) {
                             return@let
                         }
@@ -298,13 +300,13 @@ object BlockGenerator : Generator(
 
                     }
 
-                    (CACHE_COLLISION_SHAPES_FIELD.get(cache) as VoxelShape?)?.let {
+                    (CACHE_COLLISION_SHAPES_FIELD?.get(cache) as VoxelShape?)?.let {
                         if (it.isEmpty) {
                             return@let
                         }
                         stateData.addProperty("collision_shapes", getOrAddVoxelShape(it))
                     }
-                    (IS_FACE_STURDY.get(cache) as BooleanArray?)?.let {
+                    (IS_FACE_STURDY?.get(cache) as BooleanArray?)?.let {
                         if (allTheSame(it)) {
                             stateData.addProperty("is_sturdy", it[0])
                             return@let
@@ -330,6 +332,13 @@ object BlockGenerator : Generator(
         }
     }
 
+    private val TINT_PROPERTIES_METHOD = try {
+        BlockColors::class.java.getDeclaredMethod("method_21592")
+    } catch (exception: Exception) {
+        null
+    }
+
+
     private val PROPERTY_METHOD = getClass("net.minecraft.state.property.Property")!!
 
     private val PROPERTY_NAME_METHOD = PROPERTY_METHOD.getDeclaredMethod("getName")
@@ -378,10 +387,10 @@ object BlockGenerator : Generator(
     private val CACHE_PROPAGATES_SKYLIGHT_DOWN_FIELD = BLOCK_STATE_CACHE_CLASS.getDeclaredField("translucent")
     private val CACHE_LIGHT_BLOCK_FIELD = BLOCK_STATE_CACHE_CLASS.getDeclaredField("lightSubtracted")
     private val CACHE_OCCLUSION_SHAPES_FIELD = BLOCK_STATE_CACHE_CLASS.getDeclaredField("shapes")
-    private val CACHE_COLLISION_SHAPES_FIELD = BLOCK_STATE_CACHE_CLASS.getDeclaredField("collisionShape")
+    private val CACHE_COLLISION_SHAPES_FIELD = getField(BLOCK_STATE_CACHE_CLASS, "collisionShape") // ToDo: Not working in < 1.14.3
     private val LARGE_COLLISION_SHAPE_FIELD = BLOCK_STATE_CACHE_CLASS.getDeclaredField("field_17651")
-    private val IS_FACE_STURDY = getField(BLOCK_STATE_CACHE_CLASS, "faceSturdy", "isFaceSturdy", "solidFullSquare")!!
-    private val IS_COLLISION_SHAPE_FULL_BLOCK = BLOCK_STATE_CACHE_CLASS.getDeclaredField("shapeIsFullCube")
+    private val IS_FACE_STURDY = getField(BLOCK_STATE_CACHE_CLASS, "faceSturdy", "isFaceSturdy", "solidFullSquare")
+    private val IS_COLLISION_SHAPE_FULL_BLOCK = getField(BLOCK_STATE_CACHE_CLASS, "shapeIsFullCube", "field_17651")
 
 
     private val BLOCK_SPEED_FACTOR_FIELD = getField(Block::class.java, "speedFactor")
@@ -396,10 +405,7 @@ object BlockGenerator : Generator(
         CACHE_PROPAGATES_SKYLIGHT_DOWN_FIELD.isAccessible = true
         CACHE_LIGHT_BLOCK_FIELD.isAccessible = true
         CACHE_OCCLUSION_SHAPES_FIELD.isAccessible = true
-        CACHE_COLLISION_SHAPES_FIELD.isAccessible = true
         LARGE_COLLISION_SHAPE_FIELD.isAccessible = true
-        IS_FACE_STURDY.isAccessible = true
-        IS_COLLISION_SHAPE_FULL_BLOCK.isAccessible = true
     }
 
     private val BLOCK_STATE_REGISTRY: IdList<BlockState> = Block.STATE_IDS
diff --git a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/EntityGenerator.kt b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/EntityGenerator.kt
index 418ffb7..d0b426a 100644
--- a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/EntityGenerator.kt
+++ b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/EntityGenerator.kt
@@ -7,12 +7,15 @@ import de.bixilon.pixlyzer.generator.Generator
 import de.bixilon.pixlyzer.util.ReflectionUtil.getClass
 import de.bixilon.pixlyzer.util.ReflectionUtil.getField
 import net.minecraft.entity.Entity
+import net.minecraft.entity.EntityCategory
+import net.minecraft.entity.EntityType
 import net.minecraft.entity.LivingEntity
 import net.minecraft.entity.attribute.EntityAttribute
 import net.minecraft.entity.attribute.EntityAttributeInstance
 import net.minecraft.entity.data.TrackedData
 import net.minecraft.util.Identifier
 import net.minecraft.util.registry.Registry
+import java.lang.reflect.Method
 import java.lang.reflect.Modifier
 
 object EntityGenerator : Generator(
@@ -28,24 +31,32 @@ object EntityGenerator : Generator(
             entityType.translationKey?.let {
                 entityData.addProperty("description_id", it)
             }
-            entityData.addProperty("category", entityType.category.ordinal)
             entityData.addProperty("serialize", entityType.isSaveable)
             entityData.addProperty("summon", entityType.isSummonable)
-            entityData.addProperty("fire_immune", entityType.isFireImmune)
-            entityData.addProperty("can_spawn_far_from_player", entityType.method_20814())
+            ENTITY_TYPE_FIRE_IMMUNE_FIELD?.getBoolean(entityType)?.let {
+                entityData.addProperty("fire_immune", it)
+            }
+            CAN_SPAWN_FAR_AWAY_FROM_PLAYER_METHOD?.invoke(entityType)?.let {
+                entityData.addProperty("can_spawn_far_from_player", it as Boolean)
+            }
 
             entityType.lootTableId?.let {
                 entityData.addProperty("loot_table", it.toString())
             }
 
-            entityData.addProperty("width", entityType.dimensions.width)
-            entityData.addProperty("height", entityType.dimensions.height)
-            entityData.addProperty("size_fixed", entityType.dimensions.fixed)
+            getEntitySize(entityType).let {
+                entityData.addProperty("width", it.first)
+                entityData.addProperty("height", it.second)
+                entityData.addProperty("size_fixed", it.third)
+            }
 
             val entity = EntitySpawner.summonEntity(entityType)
             val entity2 = EntitySpawner.summonEntity(entityType)
             // some entities have random values, we can and will ignore these ones
 
+
+            entityData.addProperty("category", entityType.getEntityCategory(entity).ordinal)
+
             if (entity is LivingEntity && entity2 is LivingEntity) {
                 for ((resourceLocation, attribute) in ATTRIBUTE_MAP) {
                     val attributes = LIVING_ENTITY_GET_ATTRIBUTES_METHOD.invoke(entity) ?: continue
@@ -170,6 +181,14 @@ object EntityGenerator : Generator(
         return json
     }
 
+    private val CAN_SPAWN_FAR_AWAY_FROM_PLAYER_METHOD: Method? = try {
+        EntityType::class.java.getDeclaredMethod("method_20814")
+    } catch (exception: Exception) {
+        null
+    }
+
+    private val ENTITY_TYPE_FIRE_IMMUNE_FIELD = getField(EntityType::class.java, "fireImmune")
+
     private val ATTRIBUTE_CLASS = getClass("net.minecraft.world.entity.ai.attributes.Attributes", "net.minecraft.world.entity.monster.SharedMonsterAttributes", "net.minecraft.entity.attribute.EntityAttributes")!!
 
     private val ATTRIBUTE_MAP: Map<String, EntityAttribute> = getAttributes()
@@ -189,6 +208,25 @@ object EntityGenerator : Generator(
 
     private val ATTRIBUTE_INSTANCE_BASE_VALUE_METHOD = ATTRIBUTE_INSTANCE_CLASS.getMethod("getBaseValue")
 
+    private val ENTITY_DIMENSION_FIELD = getField(EntityType::class.java, "dimensions")
+    private val ENTITY_DIMENSION_CLASS = getClass("net.minecraft.entity.EntityDimensions")
+    private val ENTITY_DIMENSION_WIDTH_FIELD = getField(ENTITY_DIMENSION_CLASS, "width")
+    private val ENTITY_DIMENSION_HEIGHT_FIELD = getField(ENTITY_DIMENSION_CLASS, "height")
+    private val ENTITY_DIMENSION_FIXED_FIELD = getField(ENTITY_DIMENSION_CLASS, "fixed")
+
+
+    private val ENTITY_WIDTH_FIELD = getField(EntityType::class.java, "field_17488")
+    private val ENTITY_HEIGHT_FIELD = getField(EntityType::class.java, "field_17489")
+
+    private fun getEntitySize(entityType: EntityType<*>): Triple<Float, Float, Boolean?> {
+        ENTITY_DIMENSION_CLASS?.let {
+            val dimension = ENTITY_DIMENSION_FIELD!!.get(entityType)
+
+            return Triple(ENTITY_DIMENSION_WIDTH_FIELD!!.getFloat(dimension), ENTITY_DIMENSION_HEIGHT_FIELD!!.getFloat(dimension), ENTITY_DIMENSION_FIXED_FIELD!!.getBoolean(dimension))
+        }
+        return Triple(ENTITY_WIDTH_FIELD!!.getFloat(entityType), ENTITY_HEIGHT_FIELD!!.getFloat(entityType), null)
+    }
+
 
     private fun getAttributes(): Map<String, EntityAttribute> {
         val attributeRegistryField = getField(Registry::class.java, "ATTRIBUTE", "ATTRIBUTES")
@@ -227,3 +265,18 @@ object EntityGenerator : Generator(
         TODO()
     }
 }
+
+private val CATEGORY_FIELD = getField(EntityType::class.java, "category")
+
+private val ENTITY_CATEGORY_GET_CATEGORY_METHOD = try {
+    EntityCategory::class.java.getDeclaredMethod("method_17350", Entity::class.java)
+} catch (exception: Exception) {
+    null
+}
+
+private fun EntityType<*>.getEntityCategory(entity: Entity): EntityCategory {
+    (CATEGORY_FIELD?.get(this) as EntityCategory?)?.let {
+        return it
+    }
+    return ENTITY_CATEGORY_GET_CATEGORY_METHOD!!.invoke(entity) as EntityCategory
+}
diff --git a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/PointOfInterestGenerator.kt b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/PointOfInterestGenerator.kt
index 162b574..a68950d 100644
--- a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/PointOfInterestGenerator.kt
+++ b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/PointOfInterestGenerator.kt
@@ -3,21 +3,29 @@ package de.bixilon.pixlyzer.generator.generators
 import com.google.gson.JsonArray
 import com.google.gson.JsonObject
 import de.bixilon.pixlyzer.generator.Generator
+import de.bixilon.pixlyzer.util.ReflectionUtil
 import net.minecraft.block.Block
 import net.minecraft.block.BlockState
 import net.minecraft.util.registry.Registry
 import net.minecraft.world.poi.PointOfInterestType
+import java.lang.reflect.Method
 
 object PointOfInterestGenerator : Generator(
     "points_of_interest"
 ) {
     override fun generate() {
+        if (POINT_OF_INTEREST_REGISTRY == null) {
+            throw IllegalArgumentException("Not available in this version yet!")
+        }
+
         for (pointOfInterestType in Registry.POINT_OF_INTEREST_TYPE) {
             val resourceIdentifier = Registry.POINT_OF_INTEREST_TYPE.getId(pointOfInterestType)
             val pointOfInterestData = JsonObject()
             pointOfInterestData.addProperty("id", Registry.POINT_OF_INTEREST_TYPE.getRawId(pointOfInterestType))
             pointOfInterestData.addProperty("max_tickets", pointOfInterestType.ticketCount)
-            pointOfInterestData.addProperty("valid_range", pointOfInterestType.method_21648())
+            VALID_RANGE_METHOD?.invoke(pointOfInterestType)?.let {
+                pointOfInterestData.addProperty("valid_range", it as Int)
+            }
 
             (POINT_OF_INTEREST_MATCHING_STATES_FIELD.get(pointOfInterestType) as Set<BlockState>).let {
                 val states = JsonArray()
@@ -31,9 +39,18 @@ object PointOfInterestGenerator : Generator(
         }
     }
 
+    val POINT_OF_INTEREST_REGISTRY = ReflectionUtil.getField(Registry::class.java, "POINT_OF_INTEREST_TYPE")?.get(null) as Registry<Any>?
+
     private val POINT_OF_INTEREST_MATCHING_STATES_FIELD = PointOfInterestType::class.java.getDeclaredField("blockStates")
 
+    private val VALID_RANGE_METHOD: Method?
+
     init {
         POINT_OF_INTEREST_MATCHING_STATES_FIELD.isAccessible = true
+        VALID_RANGE_METHOD = try {
+            PointOfInterestType::class.java.getDeclaredMethod("method_21648")
+        } catch (exception: Exception) {
+            null
+        }
     }
 }
diff --git a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/VillagerProfessionGenerator.kt b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/VillagerProfessionGenerator.kt
index c7cefd4..16e2193 100644
--- a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/VillagerProfessionGenerator.kt
+++ b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/VillagerProfessionGenerator.kt
@@ -1,9 +1,12 @@
 package de.bixilon.pixlyzer.generator.generators
 
+import com.google.common.collect.ImmutableSet
 import com.google.gson.JsonArray
 import com.google.gson.JsonObject
 import de.bixilon.pixlyzer.generator.Generator
 import de.bixilon.pixlyzer.util.ReflectionUtil.getField
+import net.minecraft.block.Block
+import net.minecraft.item.Item
 import net.minecraft.sound.SoundEvent
 import net.minecraft.util.registry.Registry
 import net.minecraft.village.VillagerProfession
@@ -17,9 +20,11 @@ object VillagerProfessionGenerator : Generator(
             val villagerProfessionData = JsonObject()
             villagerProfessionData.addProperty("id", Registry.VILLAGER_PROFESSION.getRawId(villagerProfession))
 
-            villagerProfessionData.addProperty("primary_point_of_interest", Registry.POINT_OF_INTEREST_TYPE.getRawId(villagerProfession.workStation))
+            PointOfInterestGenerator.POINT_OF_INTEREST_REGISTRY?.let {
+                villagerProfessionData.addProperty("primary_point_of_interest", it.getRawId(WORK_STATION_VILLAGER_PROFESSION_TYPE_FIELD!!.get(villagerProfession)))
+            }
 
-            villagerProfession.gatherableItems.let {
+            (GATHERABLE_ITEMS_FIELD?.get(villagerProfession) as ImmutableSet<Item>?)?.let {
                 val requestedItems = JsonArray()
                 for (item in it) {
                     requestedItems.add(Registry.ITEM.getRawId(item))
@@ -30,7 +35,7 @@ object VillagerProfessionGenerator : Generator(
                 }
             }
 
-            villagerProfession.secondaryJobSites.let {
+            (SECONDARY_JOB_SITES_FIELD?.get(villagerProfession) as ImmutableSet<Block>?)?.let {
                 val blocks = JsonArray()
                 for (block in it) {
                     blocks.add(Registry.BLOCK.getRawId(block))
@@ -49,5 +54,11 @@ object VillagerProfessionGenerator : Generator(
         }
     }
 
-    val WORK_SOUND_PROFESSION = getField(VillagerProfession::class.java, "workSound")
+    private val WORK_SOUND_PROFESSION = getField(VillagerProfession::class.java, "workSound")
+
+
+    private val WORK_STATION_VILLAGER_PROFESSION_TYPE_FIELD = getField(VillagerProfession::class.java, "workStation")
+
+    private val SECONDARY_JOB_SITES_FIELD = getField(VillagerProfession::class.java, "secondaryJobSites")
+    private val GATHERABLE_ITEMS_FIELD = getField(VillagerProfession::class.java, "gatherableItems")
 }
diff --git a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/VoxelShapeGenerator.kt b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/VoxelShapeGenerator.kt
index 12740b1..242e702 100644
--- a/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/VoxelShapeGenerator.kt
+++ b/src/main/kotlin/de/bixilon/pixlyzer/generator/generators/VoxelShapeGenerator.kt
@@ -3,6 +3,7 @@ package de.bixilon.pixlyzer.generator.generators
 import com.google.gson.JsonArray
 import com.google.gson.JsonObject
 import de.bixilon.pixlyzer.generator.Generator
+import de.bixilon.pixlyzer.util.ReflectionUtil
 import net.minecraft.util.math.Box
 import net.minecraft.util.shape.VoxelShape
 
@@ -27,16 +28,12 @@ object VoxelShapeGenerator : Generator(
     }
 
 
-    private val VOXEL_SHAPE_FACES_FIELD = VoxelShape::class.java.getDeclaredField("shapeCache")
-
-    init {
-        VOXEL_SHAPE_FACES_FIELD.isAccessible = true
-    }
+    private val VOXEL_SHAPE_FACES_FIELD = ReflectionUtil.getField(VoxelShape::class.java, "shapeCache")
 
 
     private fun VoxelShape.serialize(): JsonObject {
         val json = JsonObject()
-        val faces = VOXEL_SHAPE_FACES_FIELD.get(this) as Array<VoxelShape>?
+        val faces = VOXEL_SHAPE_FACES_FIELD?.get(this) as Array<VoxelShape>?
         if (faces != null) {
             check(faces.size == 6)
 
diff --git a/src/main/resources/entities_metadata_mappings.json b/src/main/resources/entities_metadata_mappings.json
index 50ca1af..af98a4d 100644
--- a/src/main/resources/entities_metadata_mappings.json
+++ b/src/main/resources/entities_metadata_mappings.json
@@ -320,7 +320,8 @@
     "data": {
       "FUSE_SPEED": "CREEPER_STATE",
       "CHARGED": "CREEPER_IS_CHARGED",
-      "IGNITED": "CREEPER_IS_IGNITED"
+      "IGNITED": "CREEPER_IS_IGNITED",
+      "field_19170": "3d_SHAREWARE_D20_BOOLEAN"
     }
   },
   "EndermanEntity": {
diff --git a/wrapper/PixLyzer.py b/wrapper/PixLyzer.py
index fcb8fa4..6afed8a 100755
--- a/wrapper/PixLyzer.py
+++ b/wrapper/PixLyzer.py
@@ -1,31 +1,33 @@
 import os
 import subprocess
 import urllib.request
-import zipfile
 from datetime import datetime
 from pathlib import Path
 
 import ujson
 
-DOWNLOAD_UNTIL_VERSION = "1.14.4-pre7"
-SKIP_VERSIONS = ["19w35a", "19w34a"]
+# ToDo: "19w35a", "19w34a","19w11a", "19w09a", "19w08b", "19w08a", "19w07a", "19w06a", "19w05a", "19w04b", "19w04a", "19w03c", "19w03b", "19w03a", "19w02a", "18w50a", "18w49a", "18w48b" "18w48a", "18w47b", "18w47a", "18w46a", "18w45a", "18w44a", "18w43c", "18w43b"
+VERSIONS_DO_GENERATE = ["1.14.4-pre7", "1.14.4-pre6", "1.14.4-pre5", "1.14.4-pre4", "1.14.4-pre3", "1.14.4-pre2", "1.14.4-pre1", "1.14.3", "1.14.3", "1.14.3-pre4",
+                        "1.14.3-pre3", "1.14.3-pre2", "1.14.3-pre1", "1.14.2", "1.14.2 Pre-Release 4", "1.14.2 Pre-Release 3", "1.14.2 Pre-Release 2", "1.14.2 Pre-Release 1", "1.14.1",
+                        "1.14.1 Pre-Release 2", "1.14.1 Pre-Release 1", "1.14", "1.14 Pre-Release 5", "1.14 Pre-Release 4", "1.14 Pre-Release 3", "1.14 Pre-Release 2", "1.14 Pre-Release 1",
+                        "19w14b", "19w14a", "3D Shareware v1.34", "19w13b", "19w13a", "19w12b", "19w12a", "19w11b"]
+
 HASH_FOLDER = os.path.abspath("data/hash/") + "/"
 ASSETS_HASH_INDEX_FILE = os.path.abspath("data/index")
 OUT_FOLDER = os.path.abspath("data/version/") + "/"
 DATA_FOLDER = os.path.abspath("data/data/") + "/"
 
-MC_REMAPPER_EXECUTABLE = "/home/moritz/Games/Minecraft/MC-Remapper/build/install/MC-Remapper/bin/MC-Remapper"
-JAVA_PATH = "/usr/lib/jvm/graalvm-ce-java11-21.0.0.2/bin/java"
+JAVA_PATH = "/usr/lib/jvm/graalvm-ce-java8-21.0.0.2//bin/java"
 ADDITIONAL_CLASSPATH = "/home/moritz/kotlin-stdlib-1.4.30.jar:/home/moritz/Games/Minecraft/PixLyzer/wrapper/data/objenesis-tck-3.1.jar"
 
 VERSION_MANIFEST_URL = "https://launchermeta.mojang.com/mc/game/version_manifest.json"
 
-COMPILE_VERSION = "21w08a"
+COMPILE_VERSION = "19w35a"
 
 failedVersionIds = []
 partlyFailedVersionIds = []
 
-print("Starting PixLyzer generator")
+print("Starting PixLyzer-yarn generator")
 print("Downloading version manifest")
 VERSION_MANIFEST = ujson.loads(urllib.request.urlopen(VERSION_MANIFEST_URL).read().decode("utf-8"))
 
@@ -38,13 +40,6 @@ def searchVersion(versionId):
     raise Exception("Unknown version: %s" % versionId)
 
 
-startWithVersion = input("Enter version to start with: ")
-if startWithVersion == "":
-    startWithVersion = VERSION_MANIFEST["versions"][0]["id"]
-    print("No version provided, starting with %s" % startWithVersion)
-searchVersion(startWithVersion)
-
-
 def runAndWait(command):
     process = subprocess.Popen(command, cwd=r'../', shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
     exitCode = process.wait()
@@ -58,7 +53,7 @@ def getVersionJson(versionEntry):
     # check cache
     global DATA_FOLDER
     versionId = versionEntry["id"]
-    path = DATA_FOLDER + versionId + "/" + versionId + ".json"
+    path = DATA_FOLDER + versionId + "_yarn/" + versionId + ".json"
     if not os.path.isfile(path):
         # download
         print("Debug: Downloading %s.json" % versionEntry["id"])
@@ -68,60 +63,28 @@ def getVersionJson(versionEntry):
     return ujson.load(open(path))
 
 
-def checkDeobfuscatedJar(jarBasePath, jarType, version, versionJson):
-    jarPath = jarBasePath + jarType + ".jar"
+def checkServerJar(jarBasePath, version, versionJson):
+    jarPath = jarBasePath + ".jar"
 
     if not os.path.isfile(jarPath):
-        mojangJarPath = jarBasePath + jarType + "_mojang.jar"
+        mojangJarPath = jarBasePath + "_server_mojang.jar"
         if not os.path.isfile(mojangJarPath):
-            print("Downloading mojang %s jar for %s" % (jarType, version["id"]))
-            urllib.request.urlretrieve(versionJson["downloads"][jarType]["url"], mojangJarPath + ".tmp")
+            print("Downloading mojang server jar for %s" % (version["id"]))
+            urllib.request.urlretrieve(versionJson["downloads"]["server"]["url"], mojangJarPath + ".tmp")
             os.rename(mojangJarPath + ".tmp", mojangJarPath)
 
-        mojangMappingsPath = jarBasePath + jarType + "_mappings.txt"
-        if not os.path.isfile(mojangMappingsPath):
-            print("Downloading mojang %s mappings for %s" % (jarType, version["id"]))
-            urllib.request.urlretrieve(versionJson["downloads"][jarType + "_mappings"]["url"], mojangMappingsPath + ".tmp")
-            os.rename(mojangMappingsPath + ".tmp", mojangMappingsPath)
 
-        # deobfuscate
-        print("Deobfuscating %s jar for %s" % (jarType, version["id"]))
-        global MC_REMAPPER_EXECUTABLE
-
-        deobfuscateProcess = subprocess.Popen('%s \"%s\" \"%s\" --output-name \"%s\"' % (MC_REMAPPER_EXECUTABLE, mojangJarPath, mojangMappingsPath, jarPath + ".tmp"), cwd=r'.', shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-        exitCode = deobfuscateProcess.wait()
-        if exitCode != 0:
-            print("Could not deobfuscate %s jar for %s" % (jarType, version["id"]))
-            print()
-            print(deobfuscateProcess.stdout.read().decode('utf-8'))
-            print(deobfuscateProcess.stderr.read().decode('utf-8'))
-            exit(5)
-        else:
-            # delete mojang jars
-            print("Deleting META-INF folder")
-            zipIn = zipfile.ZipFile(jarPath + ".tmp", 'r')
-            zipOut = zipfile.ZipFile(jarPath + ".tmp2", 'w')
-            for item in zipIn.infolist():
-                buffer = zipIn.read(item.filename)
-                if not item.filename.startswith("META-INF"):
-                    zipOut.writestr(item, buffer)
-
-            zipOut.close()
-            zipIn.close()
-
-            os.remove(jarPath + ".tmp")
-            os.rename(jarPath + ".tmp2", jarPath)
-
-            print("Deleting %s jar and mappings for %s" % (jarType, version["id"]))
-            os.remove(mojangJarPath)
-            os.remove(mojangMappingsPath)
+def checkDeobfuscatedClientJar(jarBasePath, version, versionJson):
+    yarnJarPath = jarBasePath + "-named.jar"
+    if not os.path.isfile(yarnJarPath):
+        raise Exception("Yarn jar does not exist for %s. You must generate it first!" % version["id"])
 
 
-def checkDeobfuscatedJars(version, versionJson):
+def checkJars(version, versionJson):
     global DATA_FOLDER
-    jarBasePath = DATA_FOLDER + version["id"] + "/" + version["id"] + "_"
-    checkDeobfuscatedJar(jarBasePath, "client", version, versionJson)
-    checkDeobfuscatedJar(jarBasePath, "server", version, versionJson)
+    jarBasePath = DATA_FOLDER + version["id"] + "_yarn/" + version["id"]
+    checkDeobfuscatedClientJar(jarBasePath, version, versionJson)
+    checkServerJar(jarBasePath, version, versionJson)
 
 
 def replaceInFile(file, search, replace):
@@ -139,7 +102,7 @@ def compilePixLyzer():
     for versionEntry in searched:
         compileVersion[versionEntry] = searched[versionEntry]
 
-    checkDeobfuscatedJars(compileVersion, getVersionJson(compileVersion))
+    checkJars(compileVersion, getVersionJson(compileVersion))
     if runAndWait('mvn clean verify') != 0:
         raise Exception("Can not compile PixLyzer")
     print("PixLyzer is now compiled")
@@ -147,31 +110,18 @@ def compilePixLyzer():
 
 compilePixLyzer()
 
-startWorking = False
-
 for version in VERSION_MANIFEST["versions"]:
-    if version["id"] == startWithVersion:
-        startWorking = True
-
-    if not startWorking:
+    if version["id"] not in VERSIONS_DO_GENERATE:
         continue
 
-    if version["id"] in SKIP_VERSIONS:
-        print("Skipping %s" % version["id"])
-        continue
-
-    if version["id"] == DOWNLOAD_UNTIL_VERSION:
-        print("Breaking at %s" % version["id"])
-        break
-
     versionJson = getVersionJson(version)
 
-    checkDeobfuscatedJars(version, versionJson)
+    checkJars(version, versionJson)
 
     versionStartTime = datetime.now()
     print("Generating data for %s" % version["id"])
     # execute
-    if runAndWait("%s -classpath \"%s:%s:%s:%s\" de.bixilon.pixlyzer.PixLyzer %s %s %s" % (JAVA_PATH, ADDITIONAL_CLASSPATH, DATA_FOLDER + version["id"] + "/" + version["id"] + "_client.jar", DATA_FOLDER + version["id"] + "/" + version["id"] + "_server.jar", "target/classes", OUT_FOLDER + version["id"], HASH_FOLDER, ASSETS_HASH_INDEX_FILE)) != 0:
+    if runAndWait("%s -classpath \"%s:%s:%s:%s\" de.bixilon.pixlyzer.PixLyzer \"%s\" \"%s\" \"%s\"" % (JAVA_PATH, ADDITIONAL_CLASSPATH, DATA_FOLDER + version["id"] + "_yarn/" + version["id"] + "-named.jar", DATA_FOLDER + version["id"] + "_yarn/" + version["id"] + "_server_mojang.jar", "target/classes", OUT_FOLDER + version["id"], HASH_FOLDER, ASSETS_HASH_INDEX_FILE)) != 0:
         print("PixLyzer did not run successfully for %s" % version["id"])
         break