Cast with Caution

- Revisited every unchecked TileEntity cast
- Redstone Links can now be toggled with a wrench
- Redstong Links are now portable on contraptions
- Schematicannon no longer inserts held schematics automatically
- Saws no longer accept items when their speed is zero

src/main/java/com/simibubi/create/AllBlocks.java

@@ -1,5 +1,8 @@
 package com.simibubi.create;
 
+import java.util.HashSet;
+import java.util.Set;
+
 import com.simibubi.create.foundation.block.IHaveColorHandler;
 import com.simibubi.create.foundation.block.IHaveCustomBlockItem;
 import com.simibubi.create.foundation.block.IHaveNoBlockItem;
@@ -45,7 +48,6 @@ import com.simibubi.create.modules.contraptions.redstone.ContactBlock;
 import com.simibubi.create.modules.contraptions.relays.advanced.SpeedControllerBlock;
 import com.simibubi.create.modules.contraptions.relays.advanced.sequencer.SequencedGearshiftBlock;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock;
-import com.simibubi.create.modules.contraptions.relays.belt.BeltTunnelBlock;
 import com.simibubi.create.modules.contraptions.relays.elementary.CogWheelBlock;
 import com.simibubi.create.modules.contraptions.relays.elementary.ShaftBlock;
 import com.simibubi.create.modules.contraptions.relays.encased.AdjustablePulleyBlock;
@@ -62,14 +64,15 @@ import com.simibubi.create.modules.curiosities.symmetry.block.TriplePlaneSymmetr
 import com.simibubi.create.modules.gardens.CocoaLogBlock;
 import com.simibubi.create.modules.logistics.block.RedstoneLinkBlock;
 import com.simibubi.create.modules.logistics.block.StockswitchBlock;
-import com.simibubi.create.modules.logistics.block.belts.BeltObserverBlock;
+import com.simibubi.create.modules.logistics.block.belts.observer.BeltObserverBlock;
-import com.simibubi.create.modules.logistics.block.belts.FunnelBlock;
+import com.simibubi.create.modules.logistics.block.belts.tunnel.BeltTunnelBlock;
 import com.simibubi.create.modules.logistics.block.diodes.FlexpeaterBlock;
 import com.simibubi.create.modules.logistics.block.diodes.LatchBlock;
 import com.simibubi.create.modules.logistics.block.diodes.PulseRepeaterBlock;
 import com.simibubi.create.modules.logistics.block.diodes.ToggleLatchBlock;
 import com.simibubi.create.modules.logistics.block.extractor.ExtractorBlock;
 import com.simibubi.create.modules.logistics.block.extractor.LinkedExtractorBlock;
+import com.simibubi.create.modules.logistics.block.funnel.FunnelBlock;
 import com.simibubi.create.modules.logistics.block.inventories.FlexcrateBlock;
 import com.simibubi.create.modules.logistics.block.transposer.LinkedTransposerBlock;
 import com.simibubi.create.modules.logistics.block.transposer.TransposerBlock;
@@ -107,9 +110,6 @@ import net.minecraftforge.common.ToolType;
 import net.minecraftforge.event.RegistryEvent;
 import net.minecraftforge.registries.IForgeRegistry;
 
-import java.util.HashSet;
-import java.util.Set;
-
 public enum AllBlocks {
 
 	__SCHEMATICS__(),

src/main/java/com/simibubi/create/AllContainers.java

@@ -55,8 +55,6 @@ public enum AllContainers {
 		bind(SCHEMATIC_TABLE, SchematicTableScreen::new);
 		bind(SCHEMATICANNON, SchematicannonScreen::new);
 		bind(FLEXCRATE, FlexcrateScreen::new);
-//		bind(LOGISTICAL_INDEX, LogisticalIndexScreen::new);
-//		bind(LOGISTICAL_CONTROLLER, LogisticalInventoryControllerScreen::new);
 		bind(FILTER, FilterScreen::new);
 		bind(ATTRIBUTE_FILTER, AttributeFilterScreen::new);
 	}

src/main/java/com/simibubi/create/AllItems.java

@@ -16,7 +16,7 @@ import com.simibubi.create.foundation.utility.data.ITaggable;
 import com.simibubi.create.modules.IModule;
 import com.simibubi.create.modules.contraptions.GogglesItem;
 import com.simibubi.create.modules.contraptions.WrenchItem;
-import com.simibubi.create.modules.contraptions.relays.belt.BeltConnectorItem;
+import com.simibubi.create.modules.contraptions.relays.belt.item.BeltConnectorItem;
 import com.simibubi.create.modules.contraptions.relays.gearbox.VerticalGearboxItem;
 import com.simibubi.create.modules.curiosities.ChromaticCompoundCubeItem;
 import com.simibubi.create.modules.curiosities.RefinedRadianceItem;
@@ -42,8 +42,8 @@ import net.minecraft.item.Item;
 import net.minecraft.item.Item.Properties;
 import net.minecraft.item.ItemStack;
 import net.minecraft.item.Rarity;
-import net.minecraft.util.ResourceLocation;
 import net.minecraft.item.SwordItem;
+import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 import net.minecraftforge.event.RegistryEvent;

src/main/java/com/simibubi/create/AllTileEntities.java

@@ -55,8 +55,6 @@ import com.simibubi.create.modules.contraptions.relays.advanced.SpeedControllerT
 import com.simibubi.create.modules.contraptions.relays.advanced.sequencer.SequencedGearshiftTileEntity;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntity;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntityRenderer;
-import com.simibubi.create.modules.contraptions.relays.belt.BeltTunnelTileEntity;
-import com.simibubi.create.modules.contraptions.relays.belt.BeltTunnelTileEntityRenderer;
 import com.simibubi.create.modules.contraptions.relays.elementary.ShaftTileEntity;
 import com.simibubi.create.modules.contraptions.relays.encased.AdjustablePulleyTileEntity;
 import com.simibubi.create.modules.contraptions.relays.encased.ClutchTileEntity;
@@ -73,14 +71,16 @@ import com.simibubi.create.modules.contraptions.relays.gearbox.GearshiftTileEnti
 import com.simibubi.create.modules.curiosities.partialWindows.WindowInABlockTileEntity;
 import com.simibubi.create.modules.logistics.block.RedstoneLinkTileEntity;
 import com.simibubi.create.modules.logistics.block.StockswitchTileEntity;
-import com.simibubi.create.modules.logistics.block.belts.BeltObserverTileEntity;
+import com.simibubi.create.modules.logistics.block.belts.observer.BeltObserverTileEntity;
-import com.simibubi.create.modules.logistics.block.belts.BeltObserverTileEntityRenderer;
+import com.simibubi.create.modules.logistics.block.belts.observer.BeltObserverTileEntityRenderer;
-import com.simibubi.create.modules.logistics.block.belts.FunnelTileEntity;
+import com.simibubi.create.modules.logistics.block.belts.tunnel.BeltTunnelTileEntity;
+import com.simibubi.create.modules.logistics.block.belts.tunnel.BeltTunnelTileEntityRenderer;
 import com.simibubi.create.modules.logistics.block.diodes.FlexPulsepeaterTileEntity;
 import com.simibubi.create.modules.logistics.block.diodes.FlexpeaterTileEntity;
 import com.simibubi.create.modules.logistics.block.diodes.FlexpeaterTileEntityRenderer;
 import com.simibubi.create.modules.logistics.block.extractor.ExtractorTileEntity;
 import com.simibubi.create.modules.logistics.block.extractor.LinkedExtractorTileEntity;
+import com.simibubi.create.modules.logistics.block.funnel.FunnelTileEntity;
 import com.simibubi.create.modules.logistics.block.inventories.FlexcrateTileEntity;
 import com.simibubi.create.modules.logistics.block.transposer.LinkedTransposerTileEntity;
 import com.simibubi.create.modules.logistics.block.transposer.TransposerTileEntity;

src/main/java/com/simibubi/create/ClientEvents.java

@@ -13,7 +13,7 @@ import com.simibubi.create.modules.contraptions.KineticDebugger;
 import com.simibubi.create.modules.contraptions.base.KineticTileEntityRenderer;
 import com.simibubi.create.modules.contraptions.components.contraptions.ChassisRangeDisplay;
 import com.simibubi.create.modules.contraptions.components.turntable.TurntableHandler;
-import com.simibubi.create.modules.contraptions.relays.belt.BeltConnectorItemHandler;
+import com.simibubi.create.modules.contraptions.relays.belt.item.BeltConnectorHandler;
 import com.simibubi.create.modules.curiosities.zapper.terrainzapper.TerrainZapperRenderHandler;
 
 import net.minecraft.client.Minecraft;
@@ -60,7 +60,7 @@ public class ClientEvents {
 
 	public static void onGameTick() {
 		CreateClient.gameTick();
-		BeltConnectorItemHandler.gameTick();
+		BeltConnectorHandler.gameTick();
 		TerrainZapperRenderHandler.tick();
 	}
 

src/main/java/com/simibubi/create/Events.java

@@ -1,27 +1,10 @@
 package com.simibubi.create;
 
-import java.util.Arrays;
-
-import com.simibubi.create.config.AllConfigs;
-import com.simibubi.create.modules.curiosities.partialWindows.WindowInABlockTileEntity;
-
-import net.minecraft.block.BlockState;
-import net.minecraft.block.FourWayBlock;
-import net.minecraft.block.WallBlock;
-import net.minecraft.item.BlockItem;
-import net.minecraft.item.ItemStack;
-import net.minecraft.state.BooleanProperty;
-import net.minecraft.tileentity.TileEntity;
-import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.IWorld;
-import net.minecraft.world.World;
 import net.minecraftforge.api.distmarker.Dist;
-import net.minecraftforge.common.Tags;
 import net.minecraftforge.event.TickEvent.Phase;
 import net.minecraftforge.event.TickEvent.ServerTickEvent;
-import net.minecraftforge.event.entity.player.PlayerInteractEvent.RightClickBlock;
 import net.minecraftforge.event.world.WorldEvent;
-import net.minecraftforge.eventbus.api.Event.Result;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.DistExecutor;
 import net.minecraftforge.fml.common.Mod.EventBusSubscriber;
@@ -59,60 +42,4 @@ public class Events {
 		Create.torquePropagator.onUnloadWorld(world);
 	}
 
-	@SubscribeEvent
-	public static void onRightClickBlock(RightClickBlock event) {
-		if (event.getUseItem() == Result.DENY)
-			return;
-		if (event.getEntityLiving().isSneaking())
-			return;
-		if (!event.getPlayer().isAllowEdit())
-			return;
-		if (!AllConfigs.SERVER.curiosities.allowGlassPanesInPartialBlocks.get())
-			return;
-
-		ItemStack stack = event.getItemStack();
-		if (stack.isEmpty())
-			return;
-		if (!(stack.getItem() instanceof BlockItem))
-			return;
-		BlockItem item = (BlockItem) stack.getItem();
-		if (!item.isIn(Tags.Items.GLASS_PANES)
-				&& (item.getBlock() == null || !item.getBlock().isIn(Tags.Blocks.GLASS_PANES)))
-			return;
-
-		BlockPos pos = event.getPos();
-		World world = event.getWorld();
-		BlockState blockState = world.getBlockState(pos);
-		if (!AllBlockTags.WINDOWABLE.matches(blockState))
-			return;
-		if (AllBlocks.WINDOW_IN_A_BLOCK.typeOf(blockState))
-			return;
-
-		BlockState defaultState = AllBlocks.WINDOW_IN_A_BLOCK.get().getDefaultState();
-		world.setBlockState(pos, defaultState);
-		TileEntity te = world.getTileEntity(pos);
-		if (te != null && te instanceof WindowInABlockTileEntity) {
-			WindowInABlockTileEntity wte = (WindowInABlockTileEntity) te;
-			wte.setWindowBlock(item.getBlock().getDefaultState());
-			wte.updateWindowConnections();
-
-			if (blockState.getBlock() instanceof FourWayBlock) {
-				for (BooleanProperty side : Arrays.asList(FourWayBlock.EAST, FourWayBlock.NORTH, FourWayBlock.SOUTH,
-						FourWayBlock.WEST))
-					blockState = blockState.with(side, false);
-			}
-			if (blockState.getBlock() instanceof WallBlock)
-				blockState = blockState.with(WallBlock.UP, true);
-
-			wte.setPartialBlock(blockState);
-			wte.requestModelDataUpdate();
-
-			if (!event.getPlayer().isCreative())
-				stack.shrink(1);
-			event.getPlayer().swingArm(event.getHand());
-		}
-
-		event.setCanceled(true);
-	}
-
 }

src/main/java/com/simibubi/create/config/CCommon.java

@@ -3,6 +3,7 @@ package com.simibubi.create.config;
 public class CCommon extends ConfigBase {
 
 	public CWorldGen worldGen = nested(0, CWorldGen::new, Comments.worldGen);
+	public ConfigBool logTeErrors = b(false, "logTeErrors", Comments.logTeErrors);
 
 	@Override
 	public String getName() {
@@ -11,6 +12,7 @@ public class CCommon extends ConfigBase {
 
 	private static class Comments {
 		static String worldGen = "Modify Create's impact on your terrain";
+		static String logTeErrors = "Forward caught TileEntityExceptions to the log at debug level.";
 	}
 
 }

src/main/java/com/simibubi/create/foundation/block/ITE.java

@@ -0,0 +1,100 @@
+package com.simibubi.create.foundation.block;
+
+import java.util.function.Consumer;
+
+import com.simibubi.create.Create;
+import com.simibubi.create.config.AllConfigs;
+
+import net.minecraft.tileentity.TileEntity;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.IBlockReader;
+import net.minecraft.world.IWorld;
+import net.minecraft.world.dimension.Dimension;
+import net.minecraft.world.dimension.DimensionType;
+
+public interface ITE<T extends TileEntity> {
+
+	Class<T> getTileEntityClass();
+
+	default void withTileEntityDo(IBlockReader world, BlockPos pos, Consumer<T> action) {
+		try {
+			action.accept(getTileEntity(world, pos));
+		} catch (TileEntityException e) {}
+	}
+
+	@SuppressWarnings("unchecked")
+	default T getTileEntity(IBlockReader worldIn, BlockPos pos) throws TileEntityException {
+		TileEntity tileEntity = worldIn.getTileEntity(pos);
+		Class<T> expectedClass = getTileEntityClass();
+
+		IWorld world = null;
+		if (worldIn instanceof IWorld)
+			world = (IWorld) worldIn;
+
+		if (tileEntity == null)
+			throw new MissingTileEntityException(world, pos, expectedClass);
+		if (!expectedClass.isInstance(tileEntity))
+			throw new InvalidTileEntityException(world, pos, expectedClass, tileEntity.getClass());
+
+		return (T) tileEntity;
+	}
+
+	static class TileEntityException extends Throwable {
+		private static final long serialVersionUID = 1L;
+
+		public TileEntityException(IWorld world, BlockPos pos, Class<?> teClass) {
+			super(makeBaseMessage(world, pos, teClass));
+		}
+
+		public TileEntityException(String message) {
+			super(message);
+			report(this);
+		}
+
+		static String makeBaseMessage(IWorld world, BlockPos pos, Class<?> expectedTeClass) {
+			return String.format("[%s] @(%d, %d, %d), expecting a %s", getDimensionName(world), pos.getX(), pos.getY(),
+					pos.getZ(), expectedTeClass.getSimpleName());
+		}
+
+		static String getDimensionName(IWorld world) {
+			String notAvailable = "Dim N/A";
+			if (world == null)
+				return notAvailable;
+			Dimension dimension = world.getDimension();
+			if (dimension == null)
+				return notAvailable;
+			DimensionType type = dimension.getType();
+			if (type == null)
+				return notAvailable;
+			ResourceLocation registryName = type.getRegistryName();
+			if (registryName == null)
+				return notAvailable;
+			return registryName.toString();
+		}
+	}
+
+	static class MissingTileEntityException extends TileEntityException {
+		private static final long serialVersionUID = 1L;
+
+		public MissingTileEntityException(IWorld world, BlockPos pos, Class<?> teClass) {
+			super("Missing TileEntity: " + makeBaseMessage(world, pos, teClass));
+		}
+
+	}
+
+	static class InvalidTileEntityException extends TileEntityException {
+		private static final long serialVersionUID = 1L;
+
+		public InvalidTileEntityException(IWorld world, BlockPos pos, Class<?> expectedTeClass, Class<?> foundTeClass) {
+			super("Wrong TileEntity: " + makeBaseMessage(world, pos, expectedTeClass) + ", found "
+					+ foundTeClass.getSimpleName());
+		}
+	}
+
+	static void report(TileEntityException e) {
+		if (AllConfigs.COMMON.logTeErrors.get())
+			Create.logger.debug("TileEntityException thrown!", e);
+	}
+
+}

src/main/java/com/simibubi/create/foundation/block/IWithContainerTileEntity.java

@@ -7,13 +7,15 @@ import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.IWorld;
 import net.minecraftforge.fml.network.NetworkHooks;
 
-public interface IWithContainerTileEntity<T extends TileEntity & IWithContainer<T, ?>> extends IWithTileEntity<T> {
+public interface IWithContainerTileEntity<T extends TileEntity & IWithContainer<T, ?>> extends ITE<T> {
 
 	default void open(IWorld world, BlockPos pos, PlayerEntity player) {
-		T te = getTileEntity(world, pos);
+		if (world.isRemote())
-		if (te == null || world.isRemote())
 			return;
+		try {
+			T te = getTileEntity(world, pos);
 			NetworkHooks.openGui((ServerPlayerEntity) player, te, te::sendToContainer);
+		} catch (TileEntityException e) {}
 	}
 
 }

src/main/java/com/simibubi/create/foundation/block/IWithTileEntity.java

@@ -1,27 +0,0 @@
-package com.simibubi.create.foundation.block;
-
-import java.util.function.Consumer;
-
-import net.minecraft.tileentity.TileEntity;
-import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.IBlockReader;
-
-public interface IWithTileEntity<T extends TileEntity> {
-
-	default void withTileEntityDo(IBlockReader world, BlockPos pos, Consumer<T> action) {
-		@SuppressWarnings("unchecked")
-		T te = (T) world.getTileEntity(pos);
-		if (te == null)
-			return;
-		action.accept(te);
-	}
-	
-	default T getTileEntity(IBlockReader world, BlockPos pos) {
-		@SuppressWarnings("unchecked")
-		T te = (T) world.getTileEntity(pos);
-		if (te == null)
-			return null;
-		return te;
-	}
-	
-}

src/main/java/com/simibubi/create/foundation/item/ItemHelper.java

@@ -12,15 +12,23 @@ import org.apache.commons.lang3.tuple.Pair;
 
 import com.simibubi.create.config.AllConfigs;
 
+import net.minecraft.inventory.InventoryHelper;
 import net.minecraft.item.ItemStack;
 import net.minecraft.item.crafting.Ingredient;
 import net.minecraft.util.NonNullList;
+import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.MathHelper;
+import net.minecraft.world.World;
 import net.minecraftforge.items.IItemHandler;
 import net.minecraftforge.items.ItemHandlerHelper;
 
 public class ItemHelper {
 
+	public static void dropContents(World world, BlockPos pos, IItemHandler inv) {
+		for (int slot = 0; slot < inv.getSlots(); slot++)
+			InventoryHelper.spawnItemStack(world, pos.getX(), pos.getY(), pos.getZ(), inv.getStackInSlot(slot));
+	}
+
 	public static List<ItemStack> multipliedOutput(ItemStack in, ItemStack out) {
 		List<ItemStack> stacks = new ArrayList<>();
 		ItemStack result = out.copy();

src/main/java/com/simibubi/create/foundation/item/TooltipHelper.java

@@ -15,8 +15,8 @@ import com.simibubi.create.modules.IModule;
 import com.simibubi.create.modules.contraptions.base.IRotate;
 import com.simibubi.create.modules.contraptions.components.flywheel.engine.EngineBlock;
 import com.simibubi.create.modules.curiosities.tools.AllToolTiers;
-
 import com.simibubi.create.modules.curiosities.tools.SandPaperItem;
+
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.entity.player.ClientPlayerEntity;
 import net.minecraft.client.resources.I18n;

src/main/java/com/simibubi/create/foundation/utility/Iterate.java

@@ -1,7 +1,11 @@
 package com.simibubi.create.foundation.utility;
 
+import java.util.Arrays;
+import java.util.List;
+
 import net.minecraft.util.Direction;
 import net.minecraft.util.Direction.Axis;
+import net.minecraft.util.math.BlockPos;
 
 public class Iterate {
 
@@ -18,4 +22,9 @@ public class Iterate {
 		return directions;
 	}
 	
+	public static List<BlockPos> hereAndBelow(BlockPos pos) {
+		return Arrays.asList(pos, pos.down());
+	}
+	                                                    
+	
 }

src/main/java/com/simibubi/create/foundation/utility/data/AllBlocksTagProvider.java

@@ -1,6 +1,11 @@
 package com.simibubi.create.foundation.utility.data;
 
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+
 import com.simibubi.create.AllBlocks;
+
 import net.minecraft.block.Block;
 import net.minecraft.data.BlockTagsProvider;
 import net.minecraft.data.DataGenerator;
@@ -8,10 +13,6 @@ import net.minecraft.tags.BlockTags;
 import net.minecraft.tags.Tag;
 import net.minecraft.util.ResourceLocation;
 
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.Map;
-
 public class AllBlocksTagProvider extends BlockTagsProvider {
 
 	static Map<ResourceLocation, BlockTags.Wrapper> createdTags;

src/main/java/com/simibubi/create/modules/contraptions/IWrenchable.java

@@ -1,7 +1,14 @@
 package com.simibubi.create.modules.contraptions;
 
 import com.simibubi.create.foundation.utility.VoxelShaper;
-import com.simibubi.create.modules.contraptions.base.*;
+import com.simibubi.create.modules.contraptions.base.DirectionalAxisKineticBlock;
+import com.simibubi.create.modules.contraptions.base.DirectionalKineticBlock;
+import com.simibubi.create.modules.contraptions.base.GeneratingKineticTileEntity;
+import com.simibubi.create.modules.contraptions.base.HorizontalAxisKineticBlock;
+import com.simibubi.create.modules.contraptions.base.HorizontalKineticBlock;
+import com.simibubi.create.modules.contraptions.base.KineticTileEntity;
+import com.simibubi.create.modules.contraptions.base.RotatedPillarKineticBlock;
+
 import net.minecraft.block.BlockState;
 import net.minecraft.item.ItemUseContext;
 import net.minecraft.tileentity.TileEntity;

src/main/java/com/simibubi/create/modules/contraptions/KineticDebugger.java

@@ -60,7 +60,7 @@ public class KineticDebugger {
 
 		BlockRayTraceResult ray = (BlockRayTraceResult) obj;
 		TileEntity te = world.getTileEntity(ray.getPos());
-		if (te == null || !(te instanceof KineticTileEntity))
+		if (!(te instanceof KineticTileEntity))
 			return null;
 
 		return (KineticTileEntity) te;

src/main/java/com/simibubi/create/modules/contraptions/RotationPropagator.java

@@ -327,7 +327,10 @@ public class RotationPropagator {
 
 		while (!frontier.isEmpty()) {
 			final BlockPos pos = frontier.remove(0);
-			final KineticTileEntity currentTE = (KineticTileEntity) world.getTileEntity(pos);
+			TileEntity tileEntity = world.getTileEntity(pos);
+			if (!(tileEntity instanceof KineticTileEntity))
+				continue;
+			final KineticTileEntity currentTE = (KineticTileEntity) tileEntity;
 
 			currentTE.removeSource();
 			currentTE.sendData();

src/main/java/com/simibubi/create/modules/contraptions/base/GeneratingKineticTileEntity.java

@@ -7,6 +7,7 @@ import com.simibubi.create.modules.contraptions.KineticNetwork;
 import com.simibubi.create.modules.contraptions.base.IRotate.SpeedLevel;
 import com.simibubi.create.modules.contraptions.goggle.IHaveGoggleInformation;
 
+import net.minecraft.tileentity.TileEntity;
 import net.minecraft.tileentity.TileEntityType;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.text.TextFormatting;
@@ -33,7 +34,10 @@ public abstract class GeneratingKineticTileEntity extends KineticTileEntity {
 	@Override
 	public void setSource(BlockPos source) {
 		super.setSource(source);
-		KineticTileEntity sourceTe = (KineticTileEntity) world.getTileEntity(source);
+		TileEntity tileEntity = world.getTileEntity(source);
+		if (!(tileEntity instanceof KineticTileEntity))
+			return;
+		KineticTileEntity sourceTe = (KineticTileEntity) tileEntity;
 		if (reActivateSource && sourceTe != null && Math.abs(sourceTe.getSpeed()) >= Math.abs(getGeneratedSpeed()))
 			reActivateSource = false;
 	}

src/main/java/com/simibubi/create/modules/contraptions/base/KineticBlock.java

@@ -79,30 +79,19 @@ public abstract class KineticBlock extends Block implements IRotate {
 	@Override
 	public abstract TileEntity createTileEntity(BlockState state, IBlockReader world);
 
-	@Override
-	public void onBlockAdded(BlockState state, World worldIn, BlockPos pos, BlockState oldState, boolean isMoving) {
-		if (isMoving) {
-			KineticTileEntity tileEntity = (KineticTileEntity) worldIn.getTileEntity(pos);
-			if (tileEntity == null)
-				return;
-			if (worldIn.isRemote())
-				return;
-			tileEntity.network = null;
-			tileEntity.source = null;
-			tileEntity.speed = 0;
-		}
-	}
-
 	@SuppressWarnings("deprecation")
 	@Override
 	public void updateNeighbors(BlockState stateIn, IWorld worldIn, BlockPos pos, int flags) {
 		super.updateNeighbors(stateIn, worldIn, pos, flags);
-		KineticTileEntity tileEntity = (KineticTileEntity) worldIn.getTileEntity(pos);
-		if (tileEntity == null)
-			return;
 		if (worldIn.isRemote())
 			return;
-		RotationPropagator.handleAdded(worldIn.getWorld(), pos, tileEntity);
+
+		TileEntity tileEntity = worldIn.getTileEntity(pos);
+		if (!(tileEntity instanceof KineticTileEntity))
+			return;
+
+		KineticTileEntity kte = (KineticTileEntity) tileEntity;
+		RotationPropagator.handleAdded(worldIn.getWorld(), pos, kte);
 	}
 
 	@Override
@@ -119,12 +108,13 @@ public abstract class KineticBlock extends Block implements IRotate {
 
 	@Override
 	public void onBlockPlacedBy(World worldIn, BlockPos pos, BlockState state, LivingEntity placer, ItemStack stack) {
-		TileEntity tileEntity = worldIn.getTileEntity(pos);
-		if (tileEntity == null || !(tileEntity instanceof KineticTileEntity))
-			return;
 		if (worldIn.isRemote)
 			return;
 
+		TileEntity tileEntity = worldIn.getTileEntity(pos);
+		if (!(tileEntity instanceof KineticTileEntity))
+			return;
+
 		KineticTileEntity kte = (KineticTileEntity) tileEntity;
 		kte.effects.queueRotationIndicators();
 	}

src/main/java/com/simibubi/create/modules/contraptions/base/KineticTileEntity.java

@@ -104,7 +104,9 @@ public abstract class KineticTileEntity extends SmartTileEntity
 			if (!world.isBlockPresent(source))
 				return;
 
-			KineticTileEntity sourceTe = (KineticTileEntity) world.getTileEntity(source);
+			TileEntity tileEntity = world.getTileEntity(source);
+			KineticTileEntity sourceTe =
+				tileEntity instanceof KineticTileEntity ? (KineticTileEntity) tileEntity : null;
 			if (sourceTe == null || sourceTe.speed == 0) {
 				removeSource();
 				detachKinetics();
@@ -266,12 +268,13 @@ public abstract class KineticTileEntity extends SmartTileEntity
 		if (world == null || world.isRemote)
 			return;
 
-		KineticTileEntity sourceTe = (KineticTileEntity) world.getTileEntity(source);
+		TileEntity tileEntity = world.getTileEntity(source);
-		if (sourceTe == null) {
+		if (!(tileEntity instanceof KineticTileEntity)) {
 			removeSource();
 			return;
 		}
 
+		KineticTileEntity sourceTe = (KineticTileEntity) tileEntity;
 		setNetwork(sourceTe.network);
 	}
 
@@ -336,9 +339,11 @@ public abstract class KineticTileEntity extends SmartTileEntity
 	public static void switchToBlockState(World world, BlockPos pos, BlockState state) {
 		if (world.isRemote)
 			return;
+
 		TileEntity tileEntityIn = world.getTileEntity(pos);
 		if (!(tileEntityIn instanceof KineticTileEntity))
 			return;
+
 		KineticTileEntity tileEntity = (KineticTileEntity) tileEntityIn;
 		if (tileEntity.hasNetwork())
 			tileEntity.getOrCreateNetwork().remove(tileEntity);

src/main/java/com/simibubi/create/modules/contraptions/components/actors/DrillBlock.java

@@ -1,6 +1,6 @@
 package com.simibubi.create.modules.contraptions.components.actors;
 
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.utility.AllShapes;
 import com.simibubi.create.modules.contraptions.base.DirectionalKineticBlock;
 import com.simibubi.create.modules.contraptions.components.contraptions.IPortableBlock;
@@ -25,7 +25,7 @@ import net.minecraft.world.IBlockReader;
 import net.minecraft.world.IWorldReader;
 import net.minecraft.world.World;
 
-public class DrillBlock extends DirectionalKineticBlock implements IPortableBlock, IWithTileEntity<DrillTileEntity> {
+public class DrillBlock extends DirectionalKineticBlock implements IPortableBlock, ITE<DrillTileEntity> {
 
 	public static MovementBehaviour MOVEMENT = new DrillMovementBehaviour();
 	public static DamageSource damageSourceDrill = new DamageSource("create.drill").setDamageBypassesArmor();
@@ -93,4 +93,9 @@ public class DrillBlock extends DirectionalKineticBlock implements IPortableBloc
 		return MOVEMENT;
 	}
 
+	@Override
+	public Class<DrillTileEntity> getTileEntityClass() {
+		return DrillTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/contraptions/BlockMovementTraits.java

@@ -4,9 +4,9 @@ import com.simibubi.create.AllBlocks;
 import com.simibubi.create.modules.contraptions.components.actors.HarvesterBlock;
 import com.simibubi.create.modules.contraptions.components.actors.PortableStorageInterfaceBlock;
 import com.simibubi.create.modules.contraptions.components.contraptions.chassis.AbstractChassisBlock;
-import com.simibubi.create.modules.logistics.block.belts.AttachedLogisticalBlock;
+import com.simibubi.create.modules.logistics.block.AttachedLogisticalBlock;
-import com.simibubi.create.modules.logistics.block.belts.FunnelBlock;
 import com.simibubi.create.modules.logistics.block.extractor.ExtractorBlock;
+import com.simibubi.create.modules.logistics.block.funnel.FunnelBlock;
 import com.simibubi.create.modules.logistics.block.transposer.TransposerBlock;
 
 import net.minecraft.block.AbstractPressurePlateBlock;

src/main/java/com/simibubi/create/modules/contraptions/components/contraptions/bearing/BearingBlock.java

@@ -1,6 +1,7 @@
 package com.simibubi.create.modules.contraptions.components.contraptions.bearing;
 
 import com.simibubi.create.modules.contraptions.base.DirectionalKineticBlock;
+
 import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;
 import net.minecraft.util.Direction;

src/main/java/com/simibubi/create/modules/contraptions/components/contraptions/bearing/ClockworkBearingBlock.java

@@ -1,6 +1,6 @@
 package com.simibubi.create.modules.contraptions.components.contraptions.bearing;
 
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.entity.player.PlayerEntity;
@@ -11,7 +11,7 @@ import net.minecraft.util.math.BlockRayTraceResult;
 import net.minecraft.world.IBlockReader;
 import net.minecraft.world.World;
 
-public class ClockworkBearingBlock extends BearingBlock implements IWithTileEntity<ClockworkBearingTileEntity> {
+public class ClockworkBearingBlock extends BearingBlock implements ITE<ClockworkBearingTileEntity> {
 
 	@Override
 	public TileEntity createTileEntity(BlockState state, IBlockReader world) {
@@ -40,4 +40,9 @@ public class ClockworkBearingBlock extends BearingBlock implements IWithTileEnti
 		return false;
 	}
 
+	@Override
+	public Class<ClockworkBearingTileEntity> getTileEntityClass() {
+		return ClockworkBearingTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/contraptions/bearing/MechanicalBearingBlock.java

@@ -1,6 +1,6 @@
 package com.simibubi.create.modules.contraptions.components.contraptions.bearing;
 
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
@@ -12,7 +12,7 @@ import net.minecraft.util.math.BlockRayTraceResult;
 import net.minecraft.world.IBlockReader;
 import net.minecraft.world.World;
 
-public class MechanicalBearingBlock extends BearingBlock implements IWithTileEntity<MechanicalBearingTileEntity> {
+public class MechanicalBearingBlock extends BearingBlock implements ITE<MechanicalBearingTileEntity> {
 
 	@Override
 	public TileEntity createTileEntity(BlockState state, IBlockReader world) {
@@ -55,4 +55,9 @@ public class MechanicalBearingBlock extends BearingBlock implements IWithTileEnt
 		withTileEntityDo(worldIn, pos, MechanicalBearingTileEntity::neighbourChanged);
 	}
 
+	@Override
+	public Class<MechanicalBearingTileEntity> getTileEntityClass() {
+		return MechanicalBearingTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/contraptions/piston/MechanicalPistonBlock.java

@@ -3,10 +3,11 @@ package com.simibubi.create.modules.contraptions.components.contraptions.piston;
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.AllSoundEvents;
 import com.simibubi.create.config.AllConfigs;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.utility.AllShapes;
 import com.simibubi.create.foundation.utility.Lang;
 import com.simibubi.create.modules.contraptions.base.DirectionalAxisKineticBlock;
+
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;
@@ -17,7 +18,11 @@ import net.minecraft.state.EnumProperty;
 import net.minecraft.state.StateContainer.Builder;
 import net.minecraft.state.properties.BlockStateProperties;
 import net.minecraft.tileentity.TileEntity;
-import net.minecraft.util.*;
+import net.minecraft.util.ActionResultType;
+import net.minecraft.util.Direction;
+import net.minecraft.util.Hand;
+import net.minecraft.util.IStringSerializable;
+import net.minecraft.util.SoundCategory;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.BlockRayTraceResult;
 import net.minecraft.util.math.Vec3d;
@@ -29,7 +34,7 @@ import net.minecraft.world.World;
 import net.minecraftforge.common.Tags;
 
 public class MechanicalPistonBlock extends DirectionalAxisKineticBlock
-		implements IWithTileEntity<MechanicalPistonTileEntity> {
+		implements ITE<MechanicalPistonTileEntity> {
 
 	public static final EnumProperty<PistonState> STATE = EnumProperty.create("state", PistonState.class);
 	protected boolean isSticky;
@@ -166,4 +171,9 @@ public class MechanicalPistonBlock extends DirectionalAxisKineticBlock
 		return VoxelShapes.fullCube();
 	}
 
+	@Override
+	public Class<MechanicalPistonTileEntity> getTileEntityClass() {
+		return MechanicalPistonTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/contraptions/pulley/PulleyBlock.java

@@ -2,7 +2,7 @@ package com.simibubi.create.modules.contraptions.components.contraptions.pulley;
 
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.foundation.block.IHaveNoBlockItem;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.utility.AllShapes;
 import com.simibubi.create.modules.contraptions.base.HorizontalAxisKineticBlock;
 
@@ -23,7 +23,7 @@ import net.minecraft.util.math.shapes.VoxelShape;
 import net.minecraft.world.IBlockReader;
 import net.minecraft.world.World;
 
-public class PulleyBlock extends HorizontalAxisKineticBlock implements IWithTileEntity<PulleyTileEntity> {
+public class PulleyBlock extends HorizontalAxisKineticBlock implements ITE<PulleyTileEntity> {
 
 	public static EnumProperty<Axis> HORIZONTAL_AXIS = BlockStateProperties.HORIZONTAL_AXIS;
 
@@ -130,4 +130,9 @@ public class PulleyBlock extends HorizontalAxisKineticBlock implements IWithTile
 
 	}
 
+	@Override
+	public Class<PulleyTileEntity> getTileEntityClass() {
+		return PulleyTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/crafter/MechanicalCrafterBlock.java

@@ -2,7 +2,7 @@ package com.simibubi.create.modules.contraptions.components.crafter;
 
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.AllItems;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.block.connected.ConnectedTextureBehaviour;
 import com.simibubi.create.foundation.block.connected.IHaveConnectedTextures;
 import com.simibubi.create.foundation.utility.AngleHelper;
@@ -42,7 +42,7 @@ import net.minecraftforge.items.ItemHandlerHelper;
 import net.minecraftforge.items.ItemStackHandler;
 
 public class MechanicalCrafterBlock extends HorizontalKineticBlock
-		implements IWithTileEntity<MechanicalCrafterTileEntity>, IHaveConnectedTextures {
+		implements ITE<MechanicalCrafterTileEntity>, IHaveConnectedTextures {
 
 	public static final EnumProperty<Pointing> POINTING = EnumProperty.create("pointing", Pointing.class);
 
@@ -291,4 +291,9 @@ public class MechanicalCrafterBlock extends HorizontalKineticBlock
 		return new InputCTBehaviour();
 	}
 
+	@Override
+	public Class<MechanicalCrafterTileEntity> getTileEntityClass() {
+		return MechanicalCrafterTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/crafter/MechanicalCrafterTileEntity.java

@@ -309,7 +309,7 @@ public class MechanicalCrafterTileEntity extends KineticTileEntity {
 		if (!AllBlocks.BELT.typeOf(world.getBlockState(targetPos)))
 			return false;
 		TileEntity te = world.getTileEntity(targetPos);
-		if (te == null || !(te instanceof BeltTileEntity))
+		if (!(te instanceof BeltTileEntity))
 			return false;
 		return ((KineticTileEntity) te).getSpeed() != 0;
 	}

src/main/java/com/simibubi/create/modules/contraptions/components/crank/HandCrankBlock.java

@@ -1,7 +1,7 @@
 package com.simibubi.create.modules.contraptions.components.crank;
 
 import com.simibubi.create.AllBlocks;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.utility.AllShapes;
 import com.simibubi.create.modules.contraptions.base.DirectionalKineticBlock;
 
@@ -21,7 +21,7 @@ import net.minecraft.world.IBlockReader;
 import net.minecraft.world.IWorldReader;
 import net.minecraft.world.World;
 
-public class HandCrankBlock extends DirectionalKineticBlock implements IWithTileEntity<HandCrankTileEntity> {
+public class HandCrankBlock extends DirectionalKineticBlock implements ITE<HandCrankTileEntity> {
 
 	public HandCrankBlock() {
 		super(Properties.from(AllBlocks.COGWHEEL.get()));
@@ -95,4 +95,9 @@ public class HandCrankBlock extends DirectionalKineticBlock implements IWithTile
 		return state.get(FACING).getAxis();
 	}
 
+	@Override
+	public Class<HandCrankTileEntity> getTileEntityClass() {
+		return HandCrankTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/crusher/CrushingWheelBlock.java

@@ -3,8 +3,8 @@ package com.simibubi.create.modules.contraptions.components.crusher;
 import static com.simibubi.create.modules.contraptions.components.crusher.CrushingWheelControllerBlock.VALID;
 
 import com.simibubi.create.AllBlocks;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.utility.AllShapes;
-import com.simibubi.create.modules.contraptions.base.KineticTileEntity;
 import com.simibubi.create.modules.contraptions.base.RotatedPillarKineticBlock;
 
 import net.minecraft.block.BlockState;
@@ -21,7 +21,7 @@ import net.minecraft.world.IBlockReader;
 import net.minecraft.world.IWorldReader;
 import net.minecraft.world.World;
 
-public class CrushingWheelBlock extends RotatedPillarKineticBlock {
+public class CrushingWheelBlock extends RotatedPillarKineticBlock implements ITE<CrushingWheelTileEntity> {
 
 	public CrushingWheelBlock() {
 		super(Properties.from(Blocks.DIORITE));
@@ -75,8 +75,11 @@ public class CrushingWheelBlock extends RotatedPillarKineticBlock {
 		BlockState otherState = world.getBlockState(otherWheelPos);
 		if (AllBlocks.CRUSHING_WHEEL.typeOf(otherState)) {
 			controllerShouldExist = true;
-			KineticTileEntity te = (KineticTileEntity) world.getTileEntity(pos);
+
-			KineticTileEntity otherTe = (KineticTileEntity) world.getTileEntity(otherWheelPos);
+			try {
+				CrushingWheelTileEntity te = getTileEntity(world, pos);
+				CrushingWheelTileEntity otherTe = getTileEntity(world, otherWheelPos);
+
 				if (te != null && otherTe != null && (te.getSpeed() > 0) != (otherTe.getSpeed() > 0)
 						&& te.getSpeed() != 0) {
 					float signum = Math.signum(te.getSpeed()) * (state.get(AXIS) == Axis.X ? -1 : 1);
@@ -84,6 +87,10 @@ public class CrushingWheelBlock extends RotatedPillarKineticBlock {
 				}
 				if (otherState.get(AXIS) != state.get(AXIS))
 					controllerShouldExist = false;
+
+			} catch (TileEntityException e) {
+				controllerShouldExist = false;
+			}
 		}
 
 		if (!controllerShouldExist) {
@@ -108,9 +115,8 @@ public class CrushingWheelBlock extends RotatedPillarKineticBlock {
 
 	@Override
 	public void onEntityCollision(BlockState state, World worldIn, BlockPos pos, Entity entityIn) {
-		KineticTileEntity te = (KineticTileEntity) worldIn.getTileEntity(pos);
+		try {
-		if (te == null)
+			CrushingWheelTileEntity te = getTileEntity(worldIn, pos);
-			return;
 			if (entityIn.posY < pos.getY() + 1.25f || !entityIn.onGround)
 				return;
 
@@ -126,6 +132,8 @@ public class CrushingWheelBlock extends RotatedPillarKineticBlock {
 				z += (pos.getZ() + .5f - entityIn.posZ) * .1f;
 			}
 			entityIn.setMotion(entityIn.getMotion().add(x, 0, z));
+
+		} catch (TileEntityException e) {}
 	}
 
 	@Override
@@ -170,4 +178,9 @@ public class CrushingWheelBlock extends RotatedPillarKineticBlock {
 		return 1f;
 	}
 
+	@Override
+	public Class<CrushingWheelTileEntity> getTileEntityClass() {
+		return CrushingWheelTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/crusher/CrushingWheelControllerBlock.java

@@ -4,6 +4,8 @@ import java.util.Random;
 
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.foundation.block.IHaveNoBlockItem;
+import com.simibubi.create.foundation.block.ITE;
+import com.simibubi.create.foundation.item.ItemHelper;
 import com.simibubi.create.modules.contraptions.base.KineticTileEntity;
 
 import net.minecraft.block.Block;
@@ -12,7 +14,6 @@ import net.minecraft.block.Blocks;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.item.ItemEntity;
 import net.minecraft.entity.player.PlayerEntity;
-import net.minecraft.inventory.InventoryHelper;
 import net.minecraft.item.BlockItemUseContext;
 import net.minecraft.nbt.CompoundNBT;
 import net.minecraft.nbt.NBTUtil;
@@ -33,7 +34,8 @@ import net.minecraft.world.IBlockReader;
 import net.minecraft.world.IWorld;
 import net.minecraft.world.World;
 
-public class CrushingWheelControllerBlock extends Block implements IHaveNoBlockItem {
+public class CrushingWheelControllerBlock extends Block
+		implements IHaveNoBlockItem, ITE<CrushingWheelControllerTileEntity> {
 
 	public static final BooleanProperty VALID = BooleanProperty.create("valid");
 
@@ -65,11 +67,10 @@ public class CrushingWheelControllerBlock extends Block implements IHaveNoBlockI
 	public void onEntityCollision(BlockState state, World worldIn, BlockPos pos, Entity entityIn) {
 		if (!state.get(VALID) || CrushingWheelControllerTileEntity.isFrozen())
 			return;
-		CrushingWheelControllerTileEntity te = (CrushingWheelControllerTileEntity) worldIn.getTileEntity(pos);
+		withTileEntityDo(worldIn, pos, te -> {
-		if (te == null)
-			return;
 			if (te.processingEntity == entityIn)
 				entityIn.setMotionMultiplier(state, new Vec3d(0.25D, (double) 0.05F, 0.25D));
+		});
 	}
 
 	@Override
@@ -77,12 +78,9 @@ public class CrushingWheelControllerBlock extends Block implements IHaveNoBlockI
 		super.onLanded(worldIn, entityIn);
 		if (CrushingWheelControllerTileEntity.isFrozen())
 			return;
-		TileEntity tileEntity = worldIn.getTileEntity(entityIn.getPosition().down());
+
-		if (tileEntity == null)
+		try {
-			return;
+			CrushingWheelControllerTileEntity te = getTileEntity(worldIn, entityIn.getPosition().down());
-		if (!(tileEntity instanceof CrushingWheelControllerTileEntity))
-			return;
-		CrushingWheelControllerTileEntity te = (CrushingWheelControllerTileEntity) tileEntity;
 			if (te.crushingspeed == 0)
 				return;
 			if (entityIn instanceof ItemEntity)
@@ -96,6 +94,7 @@ public class CrushingWheelControllerBlock extends Block implements IHaveNoBlockI
 				return;
 
 			te.startCrushing(entityIn);
+		} catch (TileEntityException e) {}
 	}
 
 	@Override
@@ -118,11 +117,7 @@ public class CrushingWheelControllerBlock extends Block implements IHaveNoBlockI
 	}
 
 	public void updateSpeed(BlockState state, World world, BlockPos pos) {
-		TileEntity tileEntity = world.getTileEntity(pos);
+		withTileEntityDo(world, pos, te -> {
-		if (tileEntity == null || !(tileEntity instanceof CrushingWheelControllerTileEntity))
-			return;
-
-		CrushingWheelControllerTileEntity te = (CrushingWheelControllerTileEntity) tileEntity;
 			if (!state.get(VALID) || CrushingWheelControllerTileEntity.isFrozen()) {
 				if (te.crushingspeed != 0) {
 					te.crushingspeed = 0;
@@ -144,6 +139,7 @@ public class CrushingWheelControllerBlock extends Block implements IHaveNoBlockI
 				te.sendData();
 				break;
 			}
+		});
 	}
 
 	@Override
@@ -165,29 +161,27 @@ public class CrushingWheelControllerBlock extends Block implements IHaveNoBlockI
 			if (new AxisAlignedBB(pos).contains(entity.getPositionVec()))
 				return VoxelShapes.empty();
 
-			CrushingWheelControllerTileEntity te = (CrushingWheelControllerTileEntity) worldIn.getTileEntity(pos);
+			try {
-			if (te == null)
+				CrushingWheelControllerTileEntity te = getTileEntity(worldIn, pos);
-				return VoxelShapes.fullCube();
 				if (te.processingEntity == entity)
 					return VoxelShapes.empty();
+			} catch (TileEntityException e) {}
 		}
 		return VoxelShapes.fullCube();
 	}
 
 	@Override
 	public void onReplaced(BlockState state, World worldIn, BlockPos pos, BlockState newState, boolean isMoving) {
-		if (state.hasTileEntity() && state.getBlock() != newState.getBlock()) {
+		if (!state.hasTileEntity() || state.getBlock() == newState.getBlock())
-			if (worldIn.getTileEntity(pos) == null)
 			return;
-			CrushingWheelControllerTileEntity te = (CrushingWheelControllerTileEntity) worldIn.getTileEntity(pos);
-			for (int slot = 0; slot < te.inventory.getSlots(); slot++) {
-				InventoryHelper.spawnItemStack(worldIn, pos.getX(), pos.getY(), pos.getZ(),
-						te.inventory.getStackInSlot(slot));
-			}
 
+		withTileEntityDo(worldIn, pos, te -> ItemHelper.dropContents(worldIn, pos, te.inventory));
 		worldIn.removeTileEntity(pos);
 	}
 
+	@Override
+	public Class<CrushingWheelControllerTileEntity> getTileEntityClass() {
+		return CrushingWheelControllerTileEntity.class;
 	}
 
 }

src/main/java/com/simibubi/create/modules/contraptions/components/deployer/DeployerBlock.java

@@ -3,7 +3,7 @@ package com.simibubi.create.modules.contraptions.components.deployer;
 import com.simibubi.create.AllItems;
 import com.simibubi.create.foundation.behaviour.base.TileEntityBehaviour;
 import com.simibubi.create.foundation.behaviour.filtering.FilteringBehaviour;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.utility.AllShapes;
 import com.simibubi.create.modules.contraptions.base.DirectionalAxisKineticBlock;
 import com.simibubi.create.modules.contraptions.components.contraptions.IPortableBlock;
@@ -26,7 +26,7 @@ import net.minecraft.world.IBlockReader;
 import net.minecraft.world.World;
 
 public class DeployerBlock extends DirectionalAxisKineticBlock
-		implements IWithTileEntity<DeployerTileEntity>, IPortableBlock {
+		implements ITE<DeployerTileEntity>, IPortableBlock {
 
 	public static MovementBehaviour MOVEMENT = new DeployerMovementBehaviour();
 
@@ -111,4 +111,9 @@ public class DeployerBlock extends DirectionalAxisKineticBlock
 		return MOVEMENT;
 	}
 
+	@Override
+	public Class<DeployerTileEntity> getTileEntityClass() {
+		return DeployerTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/fan/AirCurrent.java

@@ -9,6 +9,7 @@ import org.apache.commons.lang3.tuple.Pair;
 import com.simibubi.create.config.AllConfigs;
 import com.simibubi.create.foundation.utility.VecHelper;
 import com.simibubi.create.modules.contraptions.particle.AirFlowParticleData;
+import com.simibubi.create.modules.contraptions.relays.belt.BeltHelper;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntity;
 import com.simibubi.create.modules.logistics.InWorldProcessing;
 import com.simibubi.create.modules.logistics.InWorldProcessing.Type;
@@ -267,15 +268,16 @@ public class AirCurrent {
 	public void tickBelts() {
 		for (Pair<BeltTileEntity, Type> pair : affectedBelts) {
 			BeltTileEntity belt = pair.getKey();
+			World world = belt.getWorld();
 			InWorldProcessing.Type processingType = pair.getRight();
+
 			BeltTileEntity controller = belt.getControllerTE();
 			if (controller == null)
 				continue;
-			World world = belt.getWorld();
 
 			controller.getInventory().forEachWithin(belt.index + .5f, .51f, (transported) -> {
 				InWorldProcessing.spawnParticlesForProcessing(world,
-						controller.getInventory().getVectorForOffset(transported.beltPosition), processingType);
+						BeltHelper.getVectorForOffset(controller, transported.beltPosition), processingType);
 				if (world.isRemote)
 					return null;
 				return InWorldProcessing.applyProcessing(transported, belt, processingType);

src/main/java/com/simibubi/create/modules/contraptions/components/fan/EncasedFanBlock.java

@@ -1,7 +1,8 @@
 package com.simibubi.create.modules.contraptions.components.fan;
 
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.modules.contraptions.base.DirectionalKineticBlock;
+
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;
@@ -17,7 +18,7 @@ import net.minecraft.world.IWorld;
 import net.minecraft.world.IWorldReader;
 import net.minecraft.world.World;
 
-public class EncasedFanBlock extends DirectionalKineticBlock implements IWithTileEntity<EncasedFanTileEntity> {
+public class EncasedFanBlock extends DirectionalKineticBlock implements ITE<EncasedFanTileEntity> {
 
 	public EncasedFanBlock() {
 		super(Properties.from(Blocks.ANDESITE));
@@ -90,4 +91,9 @@ public class EncasedFanBlock extends DirectionalKineticBlock implements IWithTil
 		return true;
 	}
 
+	@Override
+	public Class<EncasedFanTileEntity> getTileEntityClass() {
+		return EncasedFanTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/fan/EncasedFanTileEntity.java

@@ -5,6 +5,7 @@ import com.simibubi.create.AllTileEntities;
 import com.simibubi.create.config.AllConfigs;
 import com.simibubi.create.config.CKinetics;
 import com.simibubi.create.modules.contraptions.base.GeneratingKineticTileEntity;
+
 import net.minecraft.nbt.CompoundNBT;
 import net.minecraft.state.properties.BlockStateProperties;
 import net.minecraft.util.Direction;

src/main/java/com/simibubi/create/modules/contraptions/components/flywheel/engine/FurnaceEngineBlock.java

@@ -2,7 +2,7 @@ package com.simibubi.create.modules.contraptions.components.flywheel.engine;
 
 import com.simibubi.create.AllBlockPartials;
 import com.simibubi.create.AllBlocks;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.utility.AllShapes;
 
 import net.minecraft.block.AbstractFurnaceBlock;
@@ -23,7 +23,7 @@ import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod.EventBusSubscriber;
 
 @EventBusSubscriber
-public class FurnaceEngineBlock extends EngineBlock implements IWithTileEntity<FurnaceEngineTileEntity> {
+public class FurnaceEngineBlock extends EngineBlock implements ITE<FurnaceEngineTileEntity> {
 
 	public FurnaceEngineBlock() {
 		super(Properties.from(Blocks.GOLD_BLOCK));
@@ -76,4 +76,9 @@ public class FurnaceEngineBlock extends EngineBlock implements IWithTileEntity<F
 			event.setUseBlock(Result.DENY);
 	}
 
+	@Override
+	public Class<FurnaceEngineTileEntity> getTileEntityClass() {
+		return FurnaceEngineTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/millstone/MillstoneBlock.java

@@ -1,6 +1,9 @@
 package com.simibubi.create.modules.contraptions.components.millstone;
 
+import com.simibubi.create.foundation.block.ITE;
+import com.simibubi.create.foundation.item.ItemHelper;
 import com.simibubi.create.foundation.utility.AllShapes;
+import com.simibubi.create.foundation.utility.Iterate;
 import com.simibubi.create.modules.contraptions.base.KineticBlock;
 
 import net.minecraft.block.BlockState;
@@ -8,7 +11,6 @@ import net.minecraft.block.Blocks;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.item.ItemEntity;
 import net.minecraft.entity.player.PlayerEntity;
-import net.minecraft.inventory.InventoryHelper;
 import net.minecraft.item.ItemStack;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.Direction;
@@ -27,7 +29,7 @@ import net.minecraftforge.items.IItemHandler;
 import net.minecraftforge.items.IItemHandlerModifiable;
 import net.minecraftforge.items.ItemStackHandler;
 
-public class MillstoneBlock extends KineticBlock {
+public class MillstoneBlock extends KineticBlock implements ITE<MillstoneTileEntity> {
 
 	public MillstoneBlock() {
 		super(Properties.from(Blocks.ANDESITE));
@@ -58,16 +60,10 @@ public class MillstoneBlock extends KineticBlock {
 			BlockRayTraceResult hit) {
 		if (!player.getHeldItem(handIn).isEmpty())
 			return false;
-		if (worldIn.getTileEntity(pos) == null)
-			return false;
 		if (worldIn.isRemote)
 			return true;
 
-		TileEntity tileEntity = worldIn.getTileEntity(pos);
+		withTileEntityDo(worldIn, pos, millstone -> {
-		if (!(tileEntity instanceof MillstoneTileEntity)) 
-			return false;
-		MillstoneTileEntity millstone = (MillstoneTileEntity) tileEntity;
-		
 			IItemHandlerModifiable inv = millstone.outputInv;
 			for (int slot = 0; slot < inv.getSlots(); slot++) {
 				player.inventory.placeItemBackInInventory(worldIn, inv.getStackInSlot(slot));
@@ -75,6 +71,8 @@ public class MillstoneBlock extends KineticBlock {
 			}
 			millstone.markDirty();
 			millstone.sendData();
+		});
+
 		return true;
 	}
 
@@ -87,15 +85,17 @@ public class MillstoneBlock extends KineticBlock {
 		if (!(entityIn instanceof ItemEntity))
 			return;
 
-		BlockPos pos = entityIn.getPosition();
+		MillstoneTileEntity millstone = null;
-		TileEntity tileEntity = worldIn.getTileEntity(pos);
+		for (BlockPos pos : Iterate.hereAndBelow(entityIn.getPosition())) {
-		if (!(tileEntity instanceof MillstoneTileEntity)) {
+			try {
-			tileEntity = worldIn.getTileEntity(pos.down());
+				millstone = getTileEntity(worldIn, pos);
-			if (!(tileEntity instanceof MillstoneTileEntity))
+			} catch (TileEntityException e) {
-				return;
+				continue;
 			}
+		}
+		if (millstone == null)
+			return;
 
-		MillstoneTileEntity millstone = (MillstoneTileEntity) tileEntity;
 		ItemEntity itemEntity = (ItemEntity) entityIn;
 		LazyOptional<IItemHandler> capability = millstone.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY);
 		if (!capability.isPresent())
@@ -111,18 +111,10 @@ public class MillstoneBlock extends KineticBlock {
 	@Override
 	public void onReplaced(BlockState state, World worldIn, BlockPos pos, BlockState newState, boolean isMoving) {
 		if (state.hasTileEntity() && state.getBlock() != newState.getBlock()) {
-			TileEntity tileEntity = worldIn.getTileEntity(pos);
+			withTileEntityDo(worldIn, pos, te -> {
-			if (!(tileEntity instanceof MillstoneTileEntity))
+				ItemHelper.dropContents(worldIn, pos, te.inputInv);
-				return;
+				ItemHelper.dropContents(worldIn, pos, te.outputInv);
-			MillstoneTileEntity te = (MillstoneTileEntity) tileEntity;
+			});
-			for (int slot = 0; slot < te.inputInv.getSlots(); slot++) {
-				InventoryHelper.spawnItemStack(worldIn, pos.getX(), pos.getY(), pos.getZ(),
-						te.inputInv.getStackInSlot(slot));
-			}
-			for (int slot = 0; slot < te.outputInv.getSlots(); slot++) {
-				InventoryHelper.spawnItemStack(worldIn, pos.getX(), pos.getY(), pos.getZ(),
-						te.outputInv.getStackInSlot(slot));
-			}
 
 			worldIn.removeTileEntity(pos);
 		}
@@ -138,4 +130,9 @@ public class MillstoneBlock extends KineticBlock {
 		return Axis.Y;
 	}
 
+	@Override
+	public Class<MillstoneTileEntity> getTileEntityClass() {
+		return MillstoneTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/mixer/MechanicalMixerBlock.java

@@ -2,7 +2,7 @@ package com.simibubi.create.modules.contraptions.components.mixer;
 
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.foundation.block.IHaveCustomBlockItem;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.utility.AllShapes;
 import com.simibubi.create.modules.contraptions.base.KineticBlock;
 
@@ -21,7 +21,7 @@ import net.minecraft.world.IBlockReader;
 import net.minecraft.world.IWorldReader;
 
 public class MechanicalMixerBlock extends KineticBlock
-		implements IWithTileEntity<MechanicalMixerTileEntity>, IHaveCustomBlockItem {
+		implements ITE<MechanicalMixerTileEntity>, IHaveCustomBlockItem {
 
 	public MechanicalMixerBlock() {
 		super(Properties.from(Blocks.ANDESITE));
@@ -90,4 +90,9 @@ public class MechanicalMixerBlock extends KineticBlock
 		return new BasinOperatorBlockItem(AllBlocks.MECHANICAL_MIXER, properties);
 	}
 
+	@Override
+	public Class<MechanicalMixerTileEntity> getTileEntityClass() {
+		return MechanicalMixerTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/press/MechanicalPressBlock.java

@@ -6,8 +6,7 @@ import java.util.Optional;
 
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.foundation.block.IHaveCustomBlockItem;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
-import com.simibubi.create.foundation.block.SyncedTileEntity;
 import com.simibubi.create.foundation.item.ItemHelper;
 import com.simibubi.create.foundation.utility.AllShapes;
 import com.simibubi.create.modules.contraptions.base.HorizontalKineticBlock;
@@ -18,7 +17,7 @@ import com.simibubi.create.modules.contraptions.relays.belt.AllBeltAttachments.I
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock.Slope;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntity;
-import com.simibubi.create.modules.contraptions.relays.belt.TransportedItemStack;
+import com.simibubi.create.modules.contraptions.relays.belt.transport.TransportedItemStack;
 
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
@@ -39,7 +38,7 @@ import net.minecraft.world.IWorldReader;
 import net.minecraft.world.World;
 
 public class MechanicalPressBlock extends HorizontalKineticBlock
-		implements IWithTileEntity<MechanicalPressTileEntity>, IBeltAttachment, IHaveCustomBlockItem {
+		implements ITE<MechanicalPressTileEntity>, IBeltAttachment, IHaveCustomBlockItem {
 
 	public MechanicalPressBlock() {
 		super(Properties.from(Blocks.PISTON));
@@ -63,17 +62,15 @@ public class MechanicalPressBlock extends HorizontalKineticBlock
 			boolean isMoving) {
 		if (worldIn.isRemote)
 			return;
-		MechanicalPressTileEntity te = (MechanicalPressTileEntity) worldIn.getTileEntity(pos);
-		if (te == null)
-			return;
 
-		if (worldIn.isBlockPowered(pos)) {
+		withTileEntityDo(worldIn, pos, te -> {
+			if (!worldIn.isBlockPowered(pos)) {
+				te.finished = false;
+				return;
+			}
 			if (!te.finished && !te.running && te.getSpeed() != 0)
 				te.start(Mode.WORLD);
-		} else {
+		});
-			te.finished = false;
-		}
-
 	}
 
 	@Override
@@ -134,11 +131,11 @@ public class MechanicalPressBlock extends HorizontalKineticBlock
 	}
 
 	@Override
-	public boolean startProcessingItem(BeltTileEntity te, TransportedItemStack transported, BeltAttachmentState state) {
+	public boolean startProcessingItem(BeltTileEntity belt, TransportedItemStack transported,
-		MechanicalPressTileEntity pressTe = (MechanicalPressTileEntity) te.getWorld()
+			BeltAttachmentState state) {
-				.getTileEntity(state.attachmentPos);
+		try {
-
+			MechanicalPressTileEntity pressTe = getTileEntity(belt.getWorld(), state.attachmentPos);
-		if (pressTe == null || pressTe.getSpeed() == 0)
+			if (pressTe.getSpeed() == 0)
 				return false;
 			if (pressTe.running)
 				return false;
@@ -148,20 +145,26 @@ public class MechanicalPressBlock extends HorizontalKineticBlock
 			state.processingDuration = 1;
 			pressTe.start(Mode.BELT);
 			return true;
+
+		} catch (TileEntityException e) {}
+		return false;
 	}
 
 	@Override
-	public boolean processItem(BeltTileEntity te, TransportedItemStack transportedStack, BeltAttachmentState state) {
+	public boolean processItem(BeltTileEntity belt, TransportedItemStack transportedStack, BeltAttachmentState state) {
-		MechanicalPressTileEntity pressTe = (MechanicalPressTileEntity) te.getWorld()
+		try {
-				.getTileEntity(state.attachmentPos);
+			MechanicalPressTileEntity pressTe = getTileEntity(belt.getWorld(), state.attachmentPos);
 
 			// Not powered
-		if (pressTe == null || pressTe.getSpeed() == 0)
+			if (pressTe.getSpeed() == 0)
 				return false;
 
 			// Running
-		if (pressTe.running) {
+			if (!pressTe.running)
-			if (pressTe.runningTicks == 30) {
+				return false;
+			if (pressTe.runningTicks != 30)
+				return true;
+
 			Optional<PressingRecipe> recipe = pressTe.getRecipe(transportedStack.stack);
 
 			pressTe.pressedItems.clear();
@@ -169,19 +172,20 @@ public class MechanicalPressBlock extends HorizontalKineticBlock
 
 			if (!recipe.isPresent())
 				return false;
+
 			ItemStack out = recipe.get().getRecipeOutput().copy();
 			List<ItemStack> multipliedOutput = ItemHelper.multipliedOutput(transportedStack.stack, out);
 			if (multipliedOutput.isEmpty())
 				transportedStack.stack = ItemStack.EMPTY;
 			transportedStack.stack = multipliedOutput.get(0);
 
-				TileEntity controllerTE = te.getWorld().getTileEntity(te.getController());
+			BeltTileEntity controllerTE = belt.getControllerTE();
-				if (controllerTE != null && controllerTE instanceof BeltTileEntity)
+			if (controllerTE != null)
-					((SyncedTileEntity) controllerTE).sendData();
+				controllerTE.sendData();
 			pressTe.sendData();
-			}
 			return true;
-		}
+
+		} catch (TileEntityException e) {}
 
 		return false;
 	}
@@ -191,4 +195,9 @@ public class MechanicalPressBlock extends HorizontalKineticBlock
 		return new BasinOperatorBlockItem(AllBlocks.MECHANICAL_PRESS, properties);
 	}
 
+	@Override
+	public Class<MechanicalPressTileEntity> getTileEntityClass() {
+		return MechanicalPressTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/saw/SawBlock.java

@@ -2,7 +2,8 @@ package com.simibubi.create.modules.contraptions.components.saw;
 
 import com.simibubi.create.foundation.behaviour.base.TileEntityBehaviour;
 import com.simibubi.create.foundation.behaviour.filtering.FilteringBehaviour;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
+import com.simibubi.create.foundation.item.ItemHelper;
 import com.simibubi.create.foundation.utility.AllShapes;
 import com.simibubi.create.modules.contraptions.base.DirectionalAxisKineticBlock;
 import com.simibubi.create.modules.contraptions.components.actors.SawMovementBehaviour;
@@ -15,7 +16,6 @@ import net.minecraft.block.Blocks;
 import net.minecraft.block.material.PushReaction;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.item.ItemEntity;
-import net.minecraft.inventory.InventoryHelper;
 import net.minecraft.item.BlockItemUseContext;
 import net.minecraft.state.BooleanProperty;
 import net.minecraft.state.StateContainer.Builder;
@@ -33,7 +33,7 @@ import net.minecraft.world.IBlockReader;
 import net.minecraft.world.IWorldReader;
 import net.minecraft.world.World;
 
-public class SawBlock extends DirectionalAxisKineticBlock implements IWithTileEntity<SawTileEntity>, IPortableBlock {
+public class SawBlock extends DirectionalAxisKineticBlock implements ITE<SawTileEntity>, IPortableBlock {
 
 	public static final BooleanProperty RUNNING = BooleanProperty.create("running");
 	public static DamageSource damageSourceSaw = new DamageSource("create.saw").setDamageBypassesArmor();
@@ -97,12 +97,13 @@ public class SawBlock extends DirectionalAxisKineticBlock implements IWithTileEn
 		super.onLanded(worldIn, entityIn);
 		if (!(entityIn instanceof ItemEntity))
 			return;
-		BlockPos pos = entityIn.getPosition();
-		if (!(worldIn.getTileEntity(pos) instanceof SawTileEntity))
-			return;
 		if (entityIn.world.isRemote)
 			return;
+
+		BlockPos pos = entityIn.getPosition();
 		withTileEntityDo(entityIn.world, pos, te -> {
+			if (te.getSpeed() == 0)
+				return;
 			te.insertItem((ItemEntity) entityIn);
 		});
 	}
@@ -129,24 +130,22 @@ public class SawBlock extends DirectionalAxisKineticBlock implements IWithTileEn
 
 	@Override
 	public void onReplaced(BlockState state, World worldIn, BlockPos pos, BlockState newState, boolean isMoving) {
-		if (worldIn.getTileEntity(pos) == null)
+		if (!state.hasTileEntity() || state.getBlock() == newState.getBlock())
 			return;
 
-		if (state.hasTileEntity() && state.getBlock() != newState.getBlock()) {
+		withTileEntityDo(worldIn, pos, te -> ItemHelper.dropContents(worldIn, pos, te.inventory));
-			withTileEntityDo(worldIn, pos, te -> {
-				for (int slot = 0; slot < te.inventory.getSlots(); slot++) {
-					InventoryHelper.spawnItemStack(worldIn, pos.getX(), pos.getY(), pos.getZ(),
-							te.inventory.getStackInSlot(slot));
-				}
-			});
 		TileEntityBehaviour.destroy(worldIn, pos, FilteringBehaviour.TYPE);
 		worldIn.removeTileEntity(pos);
 	}
-	}
 
 	@Override
 	public MovementBehaviour getMovementBehaviour() {
 		return MOVEMENT;
 	}
 
+	@Override
+	public Class<SawTileEntity> getTileEntityClass() {
+		return SawTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/saw/SawTileEntity.java

@@ -148,8 +148,6 @@ public class SawTileEntity extends BlockBreakingKineticTileEntity {
 						if (stack.isEmpty())
 							continue;
 
-//						if (itemMovementFacing.getAxis() == Axis.Z)
-//							itemMovementFacing = itemMovementFacing.getOpposite();
 						if (((BeltTileEntity) te).tryInsertingFromSide(itemMovementFacing, stack, false))
 							inventory.setStackInSlot(slot, ItemStack.EMPTY);
 						else {

src/main/java/com/simibubi/create/modules/contraptions/components/turntable/TurntableBlock.java

@@ -1,5 +1,6 @@
 package com.simibubi.create.modules.contraptions.components.turntable;
 
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.utility.AllShapes;
 import com.simibubi.create.foundation.utility.VecHelper;
 import com.simibubi.create.modules.contraptions.base.KineticBlock;
@@ -22,7 +23,7 @@ import net.minecraft.world.IBlockReader;
 import net.minecraft.world.IWorldReader;
 import net.minecraft.world.World;
 
-public class TurntableBlock extends KineticBlock {
+public class TurntableBlock extends KineticBlock implements ITE<TurntableTileEntity> {
 
 	public TurntableBlock() {
 		super(Properties.from(Blocks.STRIPPED_SPRUCE_LOG));
@@ -40,22 +41,19 @@ public class TurntableBlock extends KineticBlock {
 
 	@Override
 	public void onEntityCollision(BlockState state, World worldIn, BlockPos pos, Entity e) {
-		TileEntity te = worldIn.getTileEntity(pos);
-		if (!(te instanceof KineticTileEntity))
-			return;
 		if (!e.onGround)
 			return;
 		if (e.getMotion().y > 0)
 			return;
-
-		float speed = ((KineticTileEntity) te).getSpeed() * 3/10;
-		World world = e.getEntityWorld();
-
-		if (speed == 0)
-			return;
 		if (e.posY < pos.getY() + .5f)
 			return;
 
+		withTileEntityDo(worldIn, pos, te -> {
+			float speed = ((KineticTileEntity) te).getSpeed() * 3 / 10;
+			if (speed == 0)
+				return;
+
+			World world = e.getEntityWorld();
 			if (world.isRemote && (e instanceof PlayerEntity)) {
 				if (worldIn.getBlockState(e.getPosition()) != state) {
 					Vec3d origin = VecHelper.getCenterOf(pos);
@@ -71,6 +69,7 @@ public class TurntableBlock extends KineticBlock {
 				return;
 			if (world.isRemote)
 				return;
+
 			if ((e instanceof LivingEntity)) {
 				float diff = e.getRotationYawHead() - speed;
 				((LivingEntity) e).setIdleTime(20);
@@ -79,12 +78,11 @@ public class TurntableBlock extends KineticBlock {
 				e.onGround = false;
 				e.velocityChanged = true;
 			}
+
 			e.rotationYaw -= speed;
-
+		});
 	}
 
-	// IRotate:
-
 	@Override
 	public boolean hasShaftTowards(IWorldReader world, BlockPos pos, BlockState state, Direction face) {
 		return face == Direction.DOWN;
@@ -100,4 +98,9 @@ public class TurntableBlock extends KineticBlock {
 		return false;
 	}
 
+	@Override
+	public Class<TurntableTileEntity> getTileEntityClass() {
+		return TurntableTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/components/turntable/TurntableHandler.java

@@ -2,9 +2,9 @@ package com.simibubi.create.modules.contraptions.components.turntable;
 
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.foundation.utility.VecHelper;
-import com.simibubi.create.modules.contraptions.base.KineticTileEntity;
 
 import net.minecraft.client.Minecraft;
+import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.MathHelper;
 import net.minecraft.util.math.Vec3d;
@@ -22,8 +22,12 @@ public class TurntableHandler {
 		if (mc.isGamePaused())
 			return;
 
-		KineticTileEntity te = (KineticTileEntity) mc.world.getTileEntity(pos);
+		TileEntity tileEntity = mc.world.getTileEntity(pos);
-		float speed = te.getSpeed() * 3/10;
+		if (!(tileEntity instanceof TurntableTileEntity))
+			return;
+		
+		TurntableTileEntity turnTable = (TurntableTileEntity) tileEntity;
+		float speed = turnTable.getSpeed() * 3/10;
 
 		if (speed == 0)
 			return;

src/main/java/com/simibubi/create/modules/contraptions/components/waterwheel/WaterWheelBlock.java

@@ -2,6 +2,7 @@ package com.simibubi.create.modules.contraptions.components.waterwheel;
 
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.config.AllConfigs;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.modules.contraptions.base.HorizontalKineticBlock;
 
 import net.minecraft.block.BlockState;
@@ -20,7 +21,7 @@ import net.minecraft.world.IWorld;
 import net.minecraft.world.IWorldReader;
 import net.minecraft.world.World;
 
-public class WaterWheelBlock extends HorizontalKineticBlock {
+public class WaterWheelBlock extends HorizontalKineticBlock implements ITE<WaterWheelTileEntity> {
 
 	public WaterWheelBlock() {
 		super(Properties.from(Blocks.STRIPPED_SPRUCE_WOOD));
@@ -79,46 +80,42 @@ public class WaterWheelBlock extends HorizontalKineticBlock {
 	}
 
 	private void updateFlowAt(BlockState state, World world, BlockPos pos, Direction f) {
-		WaterWheelTileEntity te = (WaterWheelTileEntity) world.getTileEntity(pos);
-		if (te == null)
-			return;
 		if (f.getAxis() == state.get(HORIZONTAL_FACING).getAxis())
 			return;
-		IFluidState fluid = world.getFluidState(pos.offset(f));
-		Vec3d flowVec = fluid.getFlow(world, pos.offset(f));
-		Direction wf = state.get(HORIZONTAL_FACING);
-		double flow = 0;
 
-		flowVec = flowVec.scale(f.getAxisDirection().getOffset());
+		IFluidState fluid = world.getFluidState(pos.offset(f));
+		Direction wf = state.get(HORIZONTAL_FACING);
 		boolean clockwise = wf.getAxisDirection() == AxisDirection.POSITIVE;
 		int clockwiseMultiplier = 2;
-		flowVec = new Vec3d(Math.signum(flowVec.x), Math.signum(flowVec.y), Math.signum(flowVec.z));
+
+		Vec3d vec = fluid.getFlow(world, pos.offset(f));
+		vec = vec.scale(f.getAxisDirection().getOffset());
+		vec = new Vec3d(Math.signum(vec.x), Math.signum(vec.y), Math.signum(vec.z));
+		Vec3d flow = vec;
+
+		withTileEntityDo(world, pos, te -> {
+			double flowStrength = 0;
 
 			if (wf.getAxis() == Axis.Z) {
 				if (f.getAxis() == Axis.Y)
-				flow = flowVec.x > 0 ^ !clockwise ? -flowVec.x * clockwiseMultiplier : -flowVec.x;
+					flowStrength = flow.x > 0 ^ !clockwise ? -flow.x * clockwiseMultiplier : -flow.x;
 				if (f.getAxis() == Axis.X)
-				flow = flowVec.y < 0 ^ !clockwise ? flowVec.y * clockwiseMultiplier : flowVec.y;
+					flowStrength = flow.y < 0 ^ !clockwise ? flow.y * clockwiseMultiplier : flow.y;
 			}
 
 			if (wf.getAxis() == Axis.X) {
 				if (f.getAxis() == Axis.Y)
-				flow = flowVec.z < 0 ^ !clockwise ? flowVec.z * clockwiseMultiplier : flowVec.z;
+					flowStrength = flow.z < 0 ^ !clockwise ? flow.z * clockwiseMultiplier : flow.z;
 				if (f.getAxis() == Axis.Z)
-				flow = flowVec.y > 0 ^ !clockwise ? -flowVec.y * clockwiseMultiplier : -flowVec.y;
+					flowStrength = flow.y > 0 ^ !clockwise ? -flow.y * clockwiseMultiplier : -flow.y;
 			}
 
-		te.setFlow(f, (float) (flow * AllConfigs.SERVER.kinetics.waterWheelSpeed.get() / 2f));
+			te.setFlow(f, (float) (flowStrength * AllConfigs.SERVER.kinetics.waterWheelSpeed.get() / 2f));
+		});
 	}
 
 	private void updateWheelSpeed(IWorld world, BlockPos pos) {
-		if (world.isRemote())
+		withTileEntityDo(world, pos, WaterWheelTileEntity::updateGeneratedRotation);
-			return;
-		TileEntity tileEntity = world.getTileEntity(pos);
-		if (!(tileEntity instanceof WaterWheelTileEntity))
-			return;
-		WaterWheelTileEntity te = (WaterWheelTileEntity) tileEntity;
-		te.updateGeneratedRotation();
 	}
 
 	@Override
@@ -159,4 +156,9 @@ public class WaterWheelBlock extends HorizontalKineticBlock {
 		return true;
 	}
 
+	@Override
+	public Class<WaterWheelTileEntity> getTileEntityClass() {
+		return WaterWheelTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/processing/BasinBlock.java

@@ -1,7 +1,7 @@
 package com.simibubi.create.modules.contraptions.processing;
 
 import com.simibubi.create.AllBlocks;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.item.ItemHelper;
 import com.simibubi.create.foundation.utility.AllShapes;
 
@@ -12,7 +12,6 @@ import net.minecraft.block.material.PushReaction;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.item.ItemEntity;
 import net.minecraft.entity.player.PlayerEntity;
-import net.minecraft.inventory.InventoryHelper;
 import net.minecraft.item.ItemStack;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.Hand;
@@ -26,7 +25,7 @@ import net.minecraftforge.items.IItemHandlerModifiable;
 import net.minecraftforge.items.ItemHandlerHelper;
 import net.minecraftforge.items.ItemStackHandler;
 
-public class BasinBlock extends Block implements IWithTileEntity<BasinTileEntity> {
+public class BasinBlock extends Block implements ITE<BasinTileEntity> {
 
 	public BasinBlock() {
 		super(Properties.from(Blocks.ANDESITE));
@@ -52,16 +51,16 @@ public class BasinBlock extends Block implements IWithTileEntity<BasinTileEntity
 			BlockRayTraceResult hit) {
 		if (!player.getHeldItem(handIn).isEmpty())
 			return false;
-		if (worldIn.getTileEntity(pos) == null)
-			return false;
 
-		BasinTileEntity te = (BasinTileEntity) worldIn.getTileEntity(pos);
+		try {
+			BasinTileEntity te = getTileEntity(worldIn, pos);
 			IItemHandlerModifiable inv = te.inventory.orElse(new ItemStackHandler(1));
 			for (int slot = 0; slot < inv.getSlots(); slot++) {
 				player.inventory.placeItemBackInInventory(worldIn, inv.getStackInSlot(slot));
 				inv.setStackInSlot(slot, ItemStack.EMPTY);
 			}
 			te.onEmptied();
+		} catch (TileEntityException e) {}
 
 		return true;
 	}
@@ -75,9 +74,8 @@ public class BasinBlock extends Block implements IWithTileEntity<BasinTileEntity
 			return;
 		if (!entityIn.isAlive())
 			return;
-
-		BasinTileEntity te = (BasinTileEntity) worldIn.getTileEntity(entityIn.getPosition());
 		ItemEntity itemEntity = (ItemEntity) entityIn;
+		withTileEntityDo(worldIn, entityIn.getPosition(), te -> {
 			ItemStack insertItem = ItemHandlerHelper.insertItem(te.inputInventory, itemEntity.getItem().copy(), false);
 
 			if (insertItem.isEmpty()) {
@@ -86,7 +84,7 @@ public class BasinBlock extends Block implements IWithTileEntity<BasinTileEntity
 			}
 
 			itemEntity.setItem(insertItem);
-
+		});
 	}
 
 	@Override
@@ -96,21 +94,17 @@ public class BasinBlock extends Block implements IWithTileEntity<BasinTileEntity
 
 	@Override
 	public void onReplaced(BlockState state, World worldIn, BlockPos pos, BlockState newState, boolean isMoving) {
-		if (worldIn.getTileEntity(pos) == null)
+		if (!state.hasTileEntity() || state.getBlock() == newState.getBlock()) {
 			return;
-
-		BasinTileEntity te = (BasinTileEntity) worldIn.getTileEntity(pos);
-		IItemHandlerModifiable inv = te.inventory.orElse(new ItemStackHandler(1));
-		for (int slot = 0; slot < inv.getSlots(); slot++) {
-			InventoryHelper.spawnItemStack(worldIn, pos.getX(), pos.getY(), pos.getZ(), inv.getStackInSlot(slot));
 		}
 
-		if (state.hasTileEntity() && state.getBlock() != newState.getBlock()) {
+		withTileEntityDo(worldIn, pos, te -> {
+			ItemHelper.dropContents(worldIn, pos, te.inputInventory);
+			ItemHelper.dropContents(worldIn, pos, te.outputInventory);
+		});
 		worldIn.removeTileEntity(pos);
 	}
 
-	}
-
 	@Override
 	public boolean isSolid(BlockState state) {
 		return false;
@@ -123,12 +117,15 @@ public class BasinBlock extends Block implements IWithTileEntity<BasinTileEntity
 
 	@Override
 	public int getComparatorInputOverride(BlockState blockState, World worldIn, BlockPos pos) {
-		TileEntity te = worldIn.getTileEntity(pos);
+		try {
-		if (te instanceof BasinTileEntity) {
+			return ItemHelper.calcRedstoneFromInventory(getTileEntity(worldIn, pos).inputInventory);
-			BasinTileEntity basinTileEntity = (BasinTileEntity) te;
+		} catch (TileEntityException e) {}
-			return ItemHelper.calcRedstoneFromInventory(basinTileEntity.inputInventory);
-		}
 		return 0;
 	}
 
+	@Override
+	public Class<BasinTileEntity> getTileEntityClass() {
+		return BasinTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/processing/BasinOperatingTileEntity.java

@@ -2,6 +2,7 @@ package com.simibubi.create.modules.contraptions.processing;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Optional;
 import java.util.stream.Collectors;
 
 import com.simibubi.create.foundation.behaviour.base.TileEntityBehaviour;
@@ -84,11 +85,11 @@ public abstract class BasinOperatingTileEntity extends KineticTileEntity {
 		if (isRunning())
 			return false;
 
-		TileEntity basinTE = world.getTileEntity(pos.down(2));
+		Optional<BasinTileEntity> basinTe = getBasin();
-		if (basinTE == null || !(basinTE instanceof BasinTileEntity))
+		if (!basinTe.isPresent())
 			return true;
 		if (!basinInv.isPresent())
-			basinInv = basinTE.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY);
+			basinInv = basinTe.get().getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY);
 		if (!basinInv.isPresent())
 			return true;
 
@@ -160,9 +161,7 @@ public abstract class BasinOperatingTileEntity extends KineticTileEntity {
 			sendData();
 		}
 
-		TileEntity basinTE = world.getTileEntity(pos.down(2));
+		getBasin().ifPresent(te -> te.contentsChanged = true);
-		if (basinTE instanceof BasinTileEntity)
-			((BasinTileEntity) basinTE).contentsChanged = false;
 	}
 
 	protected List<IRecipe<?>> getMatchingRecipes() {
@@ -176,6 +175,13 @@ public abstract class BasinOperatingTileEntity extends KineticTileEntity {
 
 	}
 
+	protected Optional<BasinTileEntity> getBasin() {
+		TileEntity basinTE = world.getTileEntity(pos.down(2));
+		if (!(basinTE instanceof BasinTileEntity))
+			return Optional.empty();
+		return Optional.of((BasinTileEntity) basinTE);
+	}
+
 	protected abstract <C extends IInventory> boolean matchStaticFilters(IRecipe<C> recipe);
 
 	protected abstract <C extends IInventory> boolean matchBasinRecipe(IRecipe<C> recipe);

src/main/java/com/simibubi/create/modules/contraptions/processing/BasinTileEntity.java

@@ -1,5 +1,7 @@
 package com.simibubi.create.modules.contraptions.processing;
 
+import java.util.Optional;
+
 import com.simibubi.create.AllTileEntities;
 import com.simibubi.create.foundation.block.SyncedTileEntity;
 
@@ -111,11 +113,7 @@ public class BasinTileEntity extends SyncedTileEntity implements ITickableTileEn
 	}
 
 	public void onEmptied() {
-		TileEntity te = world.getTileEntity(pos.up(2));
+		getOperator().ifPresent(te -> te.basinRemoved = true);
-		if (te == null)
-			return;
-		if (te instanceof BasinOperatingTileEntity)
-			((BasinOperatingTileEntity) te).basinRemoved = true;
 	}
 
 	@Override
@@ -137,13 +135,14 @@ public class BasinTileEntity extends SyncedTileEntity implements ITickableTileEn
 		if (!contentsChanged)
 			return;
 		contentsChanged = false;
+		getOperator().ifPresent(te -> te.basinChecker.scheduleUpdate());
+	}
 
+	private Optional<BasinOperatingTileEntity> getOperator() {
 		TileEntity te = world.getTileEntity(pos.up(2));
-		if (te == null)
-			return;
 		if (te instanceof BasinOperatingTileEntity)
-			((BasinOperatingTileEntity) te).basinChecker.scheduleUpdate();
+			return Optional.of((BasinOperatingTileEntity) te);
-
+		return Optional.empty();
 	}
 
 }

src/main/java/com/simibubi/create/modules/contraptions/redstone/AnalogLeverBlock.java

@@ -2,7 +2,7 @@ package com.simibubi.create.modules.contraptions.redstone;
 
 import java.util.Random;
 
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
@@ -26,7 +26,7 @@ import net.minecraft.world.World;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 
-public class AnalogLeverBlock extends HorizontalFaceBlock implements IWithTileEntity<AnalogLeverTileEntity> {
+public class AnalogLeverBlock extends HorizontalFaceBlock implements ITE<AnalogLeverTileEntity> {
 
 	public AnalogLeverBlock() {
 		super(Properties.from(Blocks.LEVER));
@@ -50,23 +50,24 @@ public class AnalogLeverBlock extends HorizontalFaceBlock implements IWithTileEn
 			return true;
 		}
 
+		try {
 			boolean sneak = player.isSneaking();
 			AnalogLeverTileEntity te = getTileEntity(worldIn, pos);
-		if (te == null)
-			return true;
-
 			te.changeState(sneak);
 			float f = .25f + ((te.state + 5) / 15f) * .5f;
 			worldIn.playSound(null, pos, SoundEvents.BLOCK_LEVER_CLICK, SoundCategory.BLOCKS, 0.2F, f);
+		} catch (TileEntityException e) {}
+
 		return true;
 	}
 
 	@Override
 	public int getWeakPower(BlockState blockState, IBlockReader blockAccess, BlockPos pos, Direction side) {
-		AnalogLeverTileEntity tileEntity = getTileEntity(blockAccess, pos);
+		try {
-		if (tileEntity == null)
+			return getTileEntity(blockAccess, pos).state;
+		} catch (TileEntityException e) {
 			return 0;
-		return tileEntity.state;
+		}
 	}
 
 	@Override
@@ -82,21 +83,23 @@ public class AnalogLeverBlock extends HorizontalFaceBlock implements IWithTileEn
 	@Override
 	@OnlyIn(Dist.CLIENT)
 	public void animateTick(BlockState stateIn, World worldIn, BlockPos pos, Random rand) {
+		try {
 			AnalogLeverTileEntity tileEntity = getTileEntity(worldIn, pos);
-		if (tileEntity == null)
-			return;
 			if (tileEntity.state != 0 && rand.nextFloat() < 0.25F)
 				addParticles(stateIn, worldIn, pos, 0.5F);
+		} catch (TileEntityException e) {}
 	}
 
 	@Override
 	public void onReplaced(BlockState state, World worldIn, BlockPos pos, BlockState newState, boolean isMoving) {
+		try {
 			AnalogLeverTileEntity tileEntity = getTileEntity(worldIn, pos);
-		if (tileEntity != null && !isMoving && state.getBlock() != newState.getBlock()) {
+			if (!isMoving && state.getBlock() != newState.getBlock()) {
 				if (tileEntity.state != 0)
 					updateNeighbors(state, worldIn, pos);
 				worldIn.removeTileEntity(pos);
 			}
+		} catch (TileEntityException e) {}
 	}
 
 	private static void addParticles(BlockState state, IWorld worldIn, BlockPos pos, float alpha) {
@@ -127,4 +130,9 @@ public class AnalogLeverBlock extends HorizontalFaceBlock implements IWithTileEn
 		super.fillStateContainer(builder.add(HORIZONTAL_FACING, FACE));
 	}
 
+	@Override
+	public Class<AnalogLeverTileEntity> getTileEntityClass() {
+		return AnalogLeverTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/relays/advanced/sequencer/SequencedGearshiftBlock.java

@@ -1,11 +1,12 @@
 package com.simibubi.create.modules.contraptions.relays.advanced.sequencer;
 
 import com.simibubi.create.AllItems;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.gui.ScreenOpener;
 import com.simibubi.create.modules.contraptions.base.HorizontalAxisKineticBlock;
 import com.simibubi.create.modules.contraptions.base.KineticBlock;
 import com.simibubi.create.modules.contraptions.base.RotatedPillarKineticBlock;
+
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;
@@ -31,8 +32,7 @@ import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 import net.minecraftforge.fml.DistExecutor;
 
-public class SequencedGearshiftBlock extends HorizontalAxisKineticBlock
+public class SequencedGearshiftBlock extends HorizontalAxisKineticBlock implements ITE<SequencedGearshiftTileEntity> {
-		implements IWithTileEntity<SequencedGearshiftTileEntity> {
 
 	public static final BooleanProperty VERTICAL = BooleanProperty.create("vertical");
 	public static final IntegerProperty STATE = IntegerProperty.create("state", 0, 5);
@@ -86,9 +86,7 @@ public class SequencedGearshiftBlock extends HorizontalAxisKineticBlock
 				return false;
 		}
 
-		DistExecutor.runWhenOn(Dist.CLIENT, () -> () -> {
+		DistExecutor.runWhenOn(Dist.CLIENT, () -> () -> withTileEntityDo(worldIn, pos, this::displayScreen));
-			displayScreen((SequencedGearshiftTileEntity) worldIn.getTileEntity(pos));
-		});
 		return true;
 	}
 
@@ -135,4 +133,9 @@ public class SequencedGearshiftBlock extends HorizontalAxisKineticBlock
 		return true;
 	}
 
+	@Override
+	public Class<SequencedGearshiftTileEntity> getTileEntityClass() {
+		return SequencedGearshiftTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/relays/belt/AllBeltAttachments.java

@@ -6,6 +6,7 @@ import java.util.function.Consumer;
 
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.Create;
+import com.simibubi.create.modules.contraptions.relays.belt.transport.TransportedItemStack;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.entity.Entity;
@@ -13,7 +14,6 @@ import net.minecraft.nbt.CompoundNBT;
 import net.minecraft.nbt.INBT;
 import net.minecraft.nbt.ListNBT;
 import net.minecraft.nbt.NBTUtil;
-import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.IWorld;
 import net.minecraft.world.World;
@@ -59,12 +59,13 @@ public enum AllBeltAttachments {
 
 		default void onAttachmentPlaced(IWorld world, BlockPos pos, BlockState state) {
 			BlockPos beltPos = getBeltPositionForAttachment(world, pos, state);
-			TileEntity te = world.getTileEntity(beltPos);
+			BeltTileEntity belt = BeltHelper.getSegmentTE(world, beltPos);
-			if (te == null || !(te instanceof BeltTileEntity))
+
+			if (belt == null)
 				return;
-			BeltTileEntity belt = (BeltTileEntity) te;
+			if (!isAttachedCorrectly(world, pos, beltPos, state, world.getBlockState(beltPos)))
-			if (!isAttachedCorrectly(world, pos, belt.getPos(), state, belt.getBlockState()))
 				return;
+
 			belt.attachmentTracker.addAttachment(world, pos);
 			belt.markDirty();
 			belt.sendData();
@@ -72,16 +73,18 @@ public enum AllBeltAttachments {
 
 		default void onAttachmentRemoved(IWorld world, BlockPos pos, BlockState state) {
 			BlockPos beltPos = getBeltPositionForAttachment(world, pos, state);
-			TileEntity te = world.getTileEntity(beltPos);
+			BeltTileEntity belt = BeltHelper.getSegmentTE(world, beltPos);
-			if (te == null || !(te instanceof BeltTileEntity))
+
+			if (belt == null)
 				return;
-			BeltTileEntity belt = (BeltTileEntity) te;
+			if (!isAttachedCorrectly(world, pos, beltPos, state, world.getBlockState(beltPos)))
-			if (!isAttachedCorrectly(world, pos, belt.getPos(), state, belt.getBlockState()))
 				return;
+
 			belt.attachmentTracker.removeAttachment(pos);
 			belt.markDirty();
 			belt.sendData();
 		}
+
 	}
 
 	public static class BeltAttachmentState {
@@ -112,8 +115,8 @@ public enum AllBeltAttachments {
 				World world = belt.getWorld();
 				BlockPos beltPos = belt.getPos();
 				BlockState beltState = belt.getBlockState();
-				List<BlockPos> attachmentPositions = ba.attachment.getPotentialAttachmentPositions(world, beltPos,
+				List<BlockPos> attachmentPositions =
-						beltState);
+					ba.attachment.getPotentialAttachmentPositions(world, beltPos, beltState);
 
 				for (BlockPos potentialPos : attachmentPositions) {
 					if (!world.isBlockPresent(potentialPos))

src/main/java/com/simibubi/create/modules/contraptions/relays/belt/BeltBlock.java

@@ -10,11 +10,12 @@ import com.simibubi.create.AllBlocks;
 import com.simibubi.create.AllItems;
 import com.simibubi.create.foundation.block.IHaveColorHandler;
 import com.simibubi.create.foundation.block.IHaveNoBlockItem;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.utility.Iterate;
 import com.simibubi.create.foundation.utility.Lang;
 import com.simibubi.create.modules.contraptions.base.HorizontalKineticBlock;
-import com.simibubi.create.modules.contraptions.relays.belt.BeltMovementHandler.TransportedEntityInfo;
+import com.simibubi.create.modules.contraptions.relays.belt.transport.BeltMovementHandler.TransportedEntityInfo;
+import com.simibubi.create.modules.logistics.block.belts.tunnel.BeltTunnelBlock;
 
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockRenderType;
@@ -62,7 +63,7 @@ import net.minecraftforge.items.CapabilityItemHandler;
 import net.minecraftforge.items.IItemHandler;
 
 public class BeltBlock extends HorizontalKineticBlock
-		implements IHaveNoBlockItem, IWithTileEntity<BeltTileEntity>, IHaveColorHandler {
+		implements IHaveNoBlockItem, ITE<BeltTileEntity>, IHaveColorHandler {
 
 	public static final IProperty<Slope> SLOPE = EnumProperty.create("slope", Slope.class);
 	public static final IProperty<Part> PART = EnumProperty.create("part", Part.class);
@@ -77,8 +78,11 @@ public class BeltBlock extends HorizontalKineticBlock
 	public boolean hasShaftTowards(IWorldReader world, BlockPos pos, BlockState state, Direction face) {
 		if (face.getAxis() != getRotationAxis(state))
 			return false;
-		BeltTileEntity beltEntity = (BeltTileEntity) world.getTileEntity(pos);
+
-		return beltEntity != null && beltEntity.hasPulley();
+		try {
+			return getTileEntity(world, pos).hasPulley();
+		} catch (TileEntityException e) {}
+		return false;
 	}
 
 	@Override
@@ -111,15 +115,9 @@ public class BeltBlock extends HorizontalKineticBlock
 
 	@Override
 	public void spawnAdditionalDrops(BlockState state, World worldIn, BlockPos pos, ItemStack stack) {
-		withTileEntityDo(worldIn, pos, te -> {
+		BeltTileEntity controllerTE = BeltHelper.getControllerTE(worldIn, pos);
-			if (worldIn.isRemote)
+		if (controllerTE != null)
-				return;
+			controllerTE.getInventory().ejectAll();
-			if (te.isController()) {
-				BeltInventory inv = te.getInventory();
-				for (TransportedItemStack s : inv.items)
-					inv.eject(s);
-			}
-		});
 	}
 
 	@Override
@@ -147,9 +145,6 @@ public class BeltBlock extends HorizontalKineticBlock
 
 	@Override
 	public void onEntityCollision(BlockState state, World worldIn, BlockPos pos, Entity entityIn) {
-		BeltTileEntity belt = null;
-		belt = (BeltTileEntity) worldIn.getTileEntity(pos);
-
 		if (state.get(SLOPE) == Slope.VERTICAL)
 			return;
 		if (entityIn instanceof PlayerEntity) {
@@ -159,6 +154,8 @@ public class BeltBlock extends HorizontalKineticBlock
 			if (player.abilities.isFlying)
 				return;
 		}
+
+		BeltTileEntity belt = BeltHelper.getSegmentTE(worldIn, pos);
 		if (belt == null || belt.getSpeed() == 0)
 			return;
 		if (entityIn instanceof ItemEntity && entityIn.isAlive()) {
@@ -178,12 +175,12 @@ public class BeltBlock extends HorizontalKineticBlock
 			return;
 		}
 
-		BeltTileEntity controller = (BeltTileEntity) worldIn.getTileEntity(belt.getController());
+		BeltTileEntity controller = BeltHelper.getControllerTE(worldIn, pos);
 		if (controller == null || controller.passengers == null)
 			return;
 		if (controller.passengers.containsKey(entityIn)) {
 			TransportedEntityInfo info = controller.passengers.get(entityIn);
-			if (info.ticksSinceLastCollision != 0 || pos.equals(entityIn.getPosition()))
+			if (info.getTicksSinceLastCollision() != 0 || pos.equals(entityIn.getPosition()))
 				info.refresh(pos, state);
 		} else {
 			controller.passengers.put(entityIn, new TransportedEntityInfo(pos, state));
@@ -224,10 +221,9 @@ public class BeltBlock extends HorizontalKineticBlock
 			return true;
 		}
 
-		TileEntity te = worldIn.getTileEntity(pos);
+		BeltTileEntity belt = BeltHelper.getSegmentTE(worldIn, pos);
-		if (te == null || !(te instanceof BeltTileEntity))
+		if (belt == null)
 			return false;
-		BeltTileEntity belt = (BeltTileEntity) te;
 
 		if (isHand) {
 			BeltTileEntity controllerBelt = belt.getControllerTE();
@@ -270,10 +266,6 @@ public class BeltBlock extends HorizontalKineticBlock
 	@Override
 	public ActionResultType onWrenched(BlockState state, ItemUseContext context) {
 		World world = context.getWorld();
-		TileEntity te = world.getTileEntity(context.getPos());
-		if (te == null || !(te instanceof BeltTileEntity))
-			return ActionResultType.PASS;
-		BeltTileEntity belt = (BeltTileEntity) te;
 		PlayerEntity player = context.getPlayer();
 
 		if (state.get(CASING)) {
@@ -289,8 +281,11 @@ public class BeltBlock extends HorizontalKineticBlock
 			if (world.isRemote)
 				return ActionResultType.SUCCESS;
 			world.setBlockState(context.getPos(), state.with(PART, Part.MIDDLE), 2);
+			BeltTileEntity belt = BeltHelper.getSegmentTE(world, context.getPos());
+			if (belt != null) {
 				belt.detachKinetics();
 				belt.attachKinetics();
+			}
 			if (!player.isCreative())
 				player.inventory.placeItemBackInInventory(world, new ItemStack(AllBlocks.SHAFT.get()));
 			return ActionResultType.SUCCESS;
@@ -365,16 +360,22 @@ public class BeltBlock extends HorizontalKineticBlock
 	public VoxelShape getCollisionShape(BlockState state, IBlockReader worldIn, BlockPos pos,
 			ISelectionContext context) {
 		VoxelShape shape = getShape(state, worldIn, pos, context);
-		BeltTileEntity belt = (BeltTileEntity) worldIn.getTileEntity(pos);
+
-		if (belt == null || context.getEntity() == null)
+		try {
+			if (context.getEntity() == null)
 				return shape;
-		BeltTileEntity controller = (BeltTileEntity) worldIn.getTileEntity(belt.getController());
+
+			BeltTileEntity belt = getTileEntity(worldIn, pos);
+			BeltTileEntity controller = belt.getControllerTE();
+
 			if (controller == null)
 				return shape;
 			if (controller.passengers == null || !controller.passengers.containsKey(context.getEntity())) {
 				return BeltShapes.getCollisionShape(state);
 			}
 
+		} catch (TileEntityException e) {}
+
 		return shape;
 	}
 
@@ -445,12 +446,8 @@ public class BeltBlock extends HorizontalKineticBlock
 					world.setBlockState(beltPos, currentState.with(CASING, false), 2);
 				}
 
-				if (te.isController() && isVertical) {
+				if (te.isController() && isVertical)
-					BeltInventory inventory = te.getInventory();
+					te.getInventory().ejectAll();
-					for (TransportedItemStack s : inventory.items)
-						inventory.eject(s);
-					inventory.items.clear();
-				}
 			} else {
 				world.destroyBlock(pos, true);
 				return;
@@ -490,11 +487,8 @@ public class BeltBlock extends HorizontalKineticBlock
 			TileEntity tileEntity = world.getTileEntity(currentPos);
 			if (tileEntity instanceof BeltTileEntity) {
 				BeltTileEntity te = (BeltTileEntity) tileEntity;
-				if (te.isController()) {
+				if (te.isController())
-					BeltInventory inv = te.getInventory();
+					te.getInventory().ejectAll();
-					for (TransportedItemStack stack : inv.items)
-						inv.eject(stack);
-				}
 
 				te.remove();
 				hasPulley = te.hasPulley();
@@ -608,4 +602,9 @@ public class BeltBlock extends HorizontalKineticBlock
 		return new BeltColor();
 	}
 
+	@Override
+	public Class<BeltTileEntity> getTileEntityClass() {
+		return BeltTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/relays/belt/BeltHelper.java

@@ -0,0 +1,70 @@
+package com.simibubi.create.modules.contraptions.relays.belt;
+
+import com.simibubi.create.foundation.utility.VecHelper;
+import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock.Slope;
+
+import net.minecraft.tileentity.TileEntity;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.math.Vec3i;
+import net.minecraft.world.IWorld;
+
+public class BeltHelper {
+
+	public static BeltTileEntity getSegmentTE(IWorld world, BlockPos pos) {
+		if (!world.isAreaLoaded(pos, 0))
+			return null;
+		TileEntity tileEntity = world.getTileEntity(pos);
+		if (!(tileEntity instanceof BeltTileEntity))
+			return null;
+		return (BeltTileEntity) tileEntity;
+	}
+
+	public static BeltTileEntity getControllerTE(IWorld world, BlockPos pos) {
+		BeltTileEntity segment = getSegmentTE(world, pos);
+		if (segment == null)
+			return null;
+		BlockPos controllerPos = segment.controller;
+		if (controllerPos == null)
+			return null;
+		return getSegmentTE(world, controllerPos);
+	}
+
+	public static BeltTileEntity getBeltAtSegment(BeltTileEntity controller, int segment) {
+		BlockPos pos = getPositionForOffset(controller, segment);
+		TileEntity te = controller.getWorld().getTileEntity(pos);
+		if (te == null || !(te instanceof BeltTileEntity))
+			return null;
+		return (BeltTileEntity) te;
+	}
+
+	public static BlockPos getPositionForOffset(BeltTileEntity controller, int offset) {
+		BlockPos pos = controller.getPos();
+		Vec3i vec = controller.getBeltFacing().getDirectionVec();
+		Slope slope = controller.getBlockState().get(BeltBlock.SLOPE);
+		int verticality = slope == Slope.DOWNWARD ? -1 : slope == Slope.UPWARD ? 1 : 0;
+
+		return pos.add(offset * vec.getX(), MathHelper.clamp(offset, 0, controller.beltLength - 1) * verticality,
+				offset * vec.getZ());
+	}
+	
+	public static Vec3d getVectorForOffset(BeltTileEntity controller, float offset) {
+		Slope slope = controller.getBlockState().get(BeltBlock.SLOPE);
+		int verticality = slope == Slope.DOWNWARD ? -1 : slope == Slope.UPWARD ? 1 : 0;
+		float verticalMovement = verticality;
+		if (offset < .5)
+			verticalMovement = 0;
+		verticalMovement = verticalMovement * (Math.min(offset, controller.beltLength - .5f) - .5f);
+		
+		Vec3d vec = VecHelper.getCenterOf(controller.getPos());
+		Vec3d horizontalMovement = new Vec3d(controller.getBeltFacing().getDirectionVec()).scale(offset - .5f);
+		
+		if (slope == Slope.VERTICAL)
+			horizontalMovement = Vec3d.ZERO;
+		
+		vec = vec.add(horizontalMovement).add(0, verticalMovement, 0);
+		return vec;
+	}
+
+}

src/main/java/com/simibubi/create/modules/contraptions/relays/belt/BeltTileEntity.java

@@ -20,7 +20,10 @@ import com.simibubi.create.modules.contraptions.base.KineticTileEntity;
 import com.simibubi.create.modules.contraptions.relays.belt.AllBeltAttachments.Tracker;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock.Part;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock.Slope;
-import com.simibubi.create.modules.contraptions.relays.belt.BeltMovementHandler.TransportedEntityInfo;
+import com.simibubi.create.modules.contraptions.relays.belt.transport.BeltInventory;
+import com.simibubi.create.modules.contraptions.relays.belt.transport.BeltMovementHandler;
+import com.simibubi.create.modules.contraptions.relays.belt.transport.BeltMovementHandler.TransportedEntityInfo;
+import com.simibubi.create.modules.contraptions.relays.belt.transport.TransportedItemStack;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.entity.Entity;
@@ -99,7 +102,7 @@ public class BeltTileEntity extends KineticTileEntity {
 		passengers.forEach((entity, info) -> {
 			boolean canBeTransported = BeltMovementHandler.canBeTransported(entity);
 			boolean leftTheBelt =
-				info.ticksSinceLastCollision > ((getBlockState().get(BeltBlock.SLOPE) != HORIZONTAL) ? 3 : 1);
+				info.getTicksSinceLastCollision() > ((getBlockState().get(BeltBlock.SLOPE) != HORIZONTAL) ? 3 : 1);
 			if (!canBeTransported || leftTheBelt) {
 				toRemove.add(entity);
 				return;
@@ -193,7 +196,7 @@ public class BeltTileEntity extends KineticTileEntity {
 	public void applyColor(DyeColor colorIn) {
 		int colorValue = colorIn.getMapColor().colorValue;
 		for (BlockPos blockPos : BeltBlock.getBeltChain(world, getController())) {
-			BeltTileEntity belt = (BeltTileEntity) world.getTileEntity(blockPos);
+			BeltTileEntity belt = BeltHelper.getSegmentTE(world, blockPos);
 			if (belt == null)
 				continue;
 			belt.color = belt.color == -1 ? colorValue : ColorHelper.mixColors(belt.color, colorValue, .5f);

src/main/java/com/simibubi/create/modules/contraptions/relays/belt/BeltTileEntityRenderer.java

@@ -18,6 +18,7 @@ import com.simibubi.create.foundation.utility.TessellatorHelper;
 import com.simibubi.create.modules.contraptions.base.KineticTileEntity;
 import com.simibubi.create.modules.contraptions.base.KineticTileEntityRenderer;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock.Slope;
+import com.simibubi.create.modules.contraptions.relays.belt.transport.TransportedItemStack;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.client.Minecraft;
@@ -107,7 +108,7 @@ public class BeltTileEntityRenderer extends SafeTileEntityRenderer<BeltTileEntit
 		int verticality = slope == Slope.DOWNWARD ? -1 : slope == Slope.UPWARD ? 1 : 0;
 		boolean slopeAlongX = te.getBeltFacing().getAxis() == Axis.X;
 
-		for (TransportedItemStack transported : te.getInventory().items) {
+		for (TransportedItemStack transported : te.getInventory().getItems()) {
 			GlStateManager.pushMatrix();
 			TessellatorHelper.fightZFighting(transported.angle);
 			float offset = MathHelper.lerp(partialTicks, transported.prevBeltPosition, transported.beltPosition);

src/main/java/com/simibubi/create/modules/contraptions/relays/belt/item/BeltConnectorHandler.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.contraptions.relays.belt;
+package com.simibubi.create.modules.contraptions.relays.belt.item;
 
 import java.util.LinkedList;
 import java.util.List;
@@ -23,7 +23,7 @@ import net.minecraft.util.math.RayTraceResult;
 import net.minecraft.util.math.Vec3d;
 import net.minecraft.world.World;
 
-public class BeltConnectorItemHandler {
+public class BeltConnectorHandler {
 
 	private static Random r = new Random();
 

src/main/java/com/simibubi/create/modules/contraptions/relays/belt/item/BeltConnectorItem.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.contraptions.relays.belt;
+package com.simibubi.create.modules.contraptions.relays.belt.item;
 
 import java.util.LinkedList;
 import java.util.List;
@@ -7,6 +7,7 @@ import com.simibubi.create.AllBlocks;
 import com.simibubi.create.config.AllConfigs;
 import com.simibubi.create.foundation.item.IAddedByOther;
 import com.simibubi.create.modules.contraptions.base.KineticTileEntity;
+import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock.Part;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock.Slope;
 import com.simibubi.create.modules.contraptions.relays.elementary.ShaftBlock;
@@ -17,6 +18,7 @@ import net.minecraft.item.ItemUseContext;
 import net.minecraft.nbt.CompoundNBT;
 import net.minecraft.nbt.NBTUtil;
 import net.minecraft.state.properties.BlockStateProperties;
+import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.ActionResultType;
 import net.minecraft.util.Direction;
 import net.minecraft.util.Direction.Axis;
@@ -184,8 +186,16 @@ public class BeltConnectorItem extends BlockItem implements IAddedByOther {
 		if (axis != world.getBlockState(second).get(BlockStateProperties.AXIS))
 			return false;
 
-		float speed1 = ((KineticTileEntity) world.getTileEntity(first)).getTheoreticalSpeed();
+		TileEntity tileEntity = world.getTileEntity(first);
-		float speed2 = ((KineticTileEntity) world.getTileEntity(second)).getTheoreticalSpeed();
+		TileEntity tileEntity2 = world.getTileEntity(second);
+
+		if (!(tileEntity instanceof KineticTileEntity))
+			return false;
+		if (!(tileEntity2 instanceof KineticTileEntity))
+			return false;
+
+		float speed1 = ((KineticTileEntity) tileEntity).getTheoreticalSpeed();
+		float speed2 = ((KineticTileEntity) tileEntity2).getTheoreticalSpeed();
 		if (Math.signum(speed1) != Math.signum(speed2) && speed1 != 0 && speed2 != 0)
 			return false;
 

src/main/java/com/simibubi/create/modules/contraptions/relays/belt/transport/BeltInventory.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.contraptions.relays.belt;
+package com.simibubi.create.modules.contraptions.relays.belt.transport;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -9,9 +9,13 @@ import java.util.function.Function;
 
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.foundation.utility.ServerSpeedProvider;
-import com.simibubi.create.foundation.utility.VecHelper;
 import com.simibubi.create.modules.contraptions.relays.belt.AllBeltAttachments.BeltAttachmentState;
+import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock.Slope;
+import com.simibubi.create.modules.contraptions.relays.belt.BeltHelper;
+import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntity;
+import com.simibubi.create.modules.logistics.block.belts.tunnel.BeltTunnelBlock;
+import com.simibubi.create.modules.logistics.block.belts.tunnel.BeltTunnelTileEntity;
 
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
@@ -23,9 +27,7 @@ import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.Direction;
 import net.minecraft.util.Direction.Axis;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.MathHelper;
 import net.minecraft.util.math.Vec3d;
-import net.minecraft.util.math.Vec3i;
 import net.minecraft.world.World;
 import net.minecraftforge.common.util.Constants.NBT;
 import net.minecraftforge.common.util.LazyOptional;
@@ -36,7 +38,7 @@ import net.minecraftforge.items.ItemHandlerHelper;
 public class BeltInventory {
 
 	final BeltTileEntity belt;
-	final List<TransportedItemStack> items;
+	private final List<TransportedItemStack> items;
 	final List<TransportedItemStack> toInsert;
 	boolean beltMovementPositive;
 	final float SEGMENT_WINDOW = .75f;
@@ -52,7 +54,7 @@ public class BeltInventory {
 		// Reverse item collection if belt just reversed
 		if (beltMovementPositive != movingPositive()) {
 			beltMovementPositive = movingPositive();
-			Collections.reverse(items);
+			Collections.reverse(getItems());
 			belt.markDirty();
 			belt.sendData();
 		}
@@ -68,7 +70,7 @@ public class BeltInventory {
 		// Assuming the first entry is furthest on the belt
 		TransportedItemStack stackInFront = null;
 		TransportedItemStack current = null;
-		Iterator<TransportedItemStack> iterator = items.iterator();
+		Iterator<TransportedItemStack> iterator = getItems().iterator();
 
 		float beltSpeed = belt.getDirectionAwareBeltMovementSpeed();
 		Direction movementFacing = belt.getMovementFacing();
@@ -121,7 +123,7 @@ public class BeltInventory {
 			if (!onClient) {
 				// Don't move if belt attachments want to continue processing
 				if (segmentBefore != -1 && current.locked) {
-					BeltTileEntity beltSegment = getBeltSegment(segmentBefore);
+					BeltTileEntity beltSegment = BeltHelper.getBeltAtSegment(belt, segmentBefore);
 					if (beltSegment != null) {
 
 						current.locked = false;
@@ -143,7 +145,7 @@ public class BeltInventory {
 				int upcomingSegment = (int) (current.beltPosition + (beltMovementPositive ? .5f : -.5f));
 				for (int segment = upcomingSegment; beltMovementPositive ? segment + .5f <= nextOffset
 						: segment + .5f >= nextOffset; segment += beltMovementPositive ? 1 : -1) {
-					BeltTileEntity beltSegment = getBeltSegment(segmentBefore);
+					BeltTileEntity beltSegment = BeltHelper.getBeltAtSegment(belt, segmentBefore);
 					if (beltSegment == null)
 						break;
 					for (BeltAttachmentState attachmentState : beltSegment.attachmentTracker.attachments) {
@@ -196,7 +198,7 @@ public class BeltInventory {
 					if (segment == -1)
 						continue;
 					if (!world.isRemote)
-						world.updateComparatorOutputLevel(getPositionForOffset(segment),
+						world.updateComparatorOutputLevel(BeltHelper.getPositionForOffset(belt, segment),
 								belt.getBlockState().getBlock());
 				}
 			}
@@ -207,7 +209,8 @@ public class BeltInventory {
 					continue;
 
 				int lastOffset = beltMovementPositive ? belt.beltLength - 1 : 0;
-				BlockPos nextPosition = getPositionForOffset(beltMovementPositive ? belt.beltLength : -1);
+				BlockPos nextPosition =
+					BeltHelper.getPositionForOffset(belt, beltMovementPositive ? belt.beltLength : -1);
 				BlockState state = world.getBlockState(nextPosition);
 
 				// next block is a basin or a saw
@@ -275,7 +278,7 @@ public class BeltInventory {
 	}
 
 	private boolean stuckAtTunnel(int offset, ItemStack stack, Direction movementDirection) {
-		BlockPos pos = getPositionForOffset(offset).up();
+		BlockPos pos = BeltHelper.getPositionForOffset(belt, offset).up();
 		if (!AllBlocks.BELT_TUNNEL.typeOf(belt.getWorld().getBlockState(pos)))
 			return false;
 		TileEntity te = belt.getWorld().getTileEntity(pos);
@@ -313,7 +316,7 @@ public class BeltInventory {
 	private void flapTunnel(int offset, Direction side, boolean inward) {
 		if (belt.getBlockState().get(BeltBlock.SLOPE) != Slope.HORIZONTAL)
 			return;
-		BlockPos pos = getPositionForOffset(offset).up();
+		BlockPos pos = BeltHelper.getPositionForOffset(belt, offset).up();
 		if (!AllBlocks.BELT_TUNNEL.typeOf(belt.getWorld().getBlockState(pos)))
 			return;
 		TileEntity te = belt.getWorld().getTileEntity(pos);
@@ -335,7 +338,7 @@ public class BeltInventory {
 		else if (!beltMovementPositive)
 			segmentPos += 1f;
 
-		for (TransportedItemStack stack : items) 
+		for (TransportedItemStack stack : getItems())
 			if (isBlocking(segment, side, segmentPos, stack))
 				return false;
 		for (TransportedItemStack stack : toInsert)
@@ -358,23 +361,23 @@ public class BeltInventory {
 	}
 
 	private void insert(TransportedItemStack newStack) {
-		if (items.isEmpty())
+		if (getItems().isEmpty())
-			items.add(newStack);
+			getItems().add(newStack);
 		else {
 			int index = 0;
-			for (TransportedItemStack stack : items) {
+			for (TransportedItemStack stack : getItems()) {
 				if (stack.compareTo(newStack) > 0 == beltMovementPositive)
 					break;
 				index++;
 			}
-			items.add(index, newStack);
+			getItems().add(index, newStack);
 		}
 	}
 
 	public TransportedItemStack getStackAtOffset(int offset) {
 		float min = offset + .5f - (SEGMENT_WINDOW / 2);
 		float max = offset + .5f + (SEGMENT_WINDOW / 2);
-		for (TransportedItemStack stack : items) {
+		for (TransportedItemStack stack : getItems()) {
 			if (stack.beltPosition > max)
 				break;
 			if (stack.beltPosition > min)
@@ -384,16 +387,16 @@ public class BeltInventory {
 	}
 
 	public void read(CompoundNBT nbt) {
-		items.clear();
+		getItems().clear();
 		nbt.getList("Items", NBT.TAG_COMPOUND)
-				.forEach(inbt -> items.add(TransportedItemStack.read((CompoundNBT) inbt)));
+				.forEach(inbt -> getItems().add(TransportedItemStack.read((CompoundNBT) inbt)));
 		beltMovementPositive = nbt.getBoolean("PositiveOrder");
 	}
 
 	public CompoundNBT write() {
 		CompoundNBT nbt = new CompoundNBT();
 		ListNBT itemsNBT = new ListNBT();
-		items.forEach(stack -> itemsNBT.add(stack.serializeNBT()));
+		getItems().forEach(stack -> itemsNBT.add(stack.serializeNBT()));
 		nbt.put("Items", itemsNBT);
 		nbt.putBoolean("PositiveOrder", beltMovementPositive);
 		return nbt;
@@ -401,7 +404,7 @@ public class BeltInventory {
 
 	public void eject(TransportedItemStack stack) {
 		ItemStack ejected = stack.stack;
-		Vec3d outPos = getVectorForOffset(stack.beltPosition);
+		Vec3d outPos = BeltHelper.getVectorForOffset(belt, stack.beltPosition);
 		float movementSpeed = Math.max(Math.abs(belt.getBeltMovementSpeed()), 1 / 8f);
 		Vec3d outMotion = new Vec3d(belt.getBeltChainDirection()).scale(movementSpeed).add(0, 1 / 8f, 0);
 		outPos.add(outMotion.normalize());
@@ -412,40 +415,9 @@ public class BeltInventory {
 		belt.getWorld().addEntity(entity);
 	}
 
-	public Vec3d getVectorForOffset(float offset) {
+	public void ejectAll() {
-		Slope slope = belt.getBlockState().get(BeltBlock.SLOPE);
+		getItems().forEach(this::eject);
-		int verticality = slope == Slope.DOWNWARD ? -1 : slope == Slope.UPWARD ? 1 : 0;
+		getItems().clear();
-		float verticalMovement = verticality;
-		if (offset < .5)
-			verticalMovement = 0;
-		verticalMovement = verticalMovement * (Math.min(offset, belt.beltLength - .5f) - .5f);
-
-		Vec3d vec = VecHelper.getCenterOf(belt.getPos());
-		Vec3d horizontalMovement = new Vec3d(belt.getBeltFacing().getDirectionVec()).scale(offset - .5f);
-
-		if (slope == Slope.VERTICAL)
-			horizontalMovement = Vec3d.ZERO;
-
-		vec = vec.add(horizontalMovement).add(0, verticalMovement, 0);
-		return vec;
-	}
-
-	private BeltTileEntity getBeltSegment(int segment) {
-		BlockPos pos = getPositionForOffset(segment);
-		TileEntity te = belt.getWorld().getTileEntity(pos);
-		if (te == null || !(te instanceof BeltTileEntity))
-			return null;
-		return (BeltTileEntity) te;
-	}
-
-	private BlockPos getPositionForOffset(int offset) {
-		BlockPos pos = belt.getPos();
-		Vec3i vec = belt.getBeltFacing().getDirectionVec();
-		Slope slope = belt.getBlockState().get(BeltBlock.SLOPE);
-		int verticality = slope == Slope.DOWNWARD ? -1 : slope == Slope.UPWARD ? 1 : 0;
-
-		return pos.add(offset * vec.getX(), MathHelper.clamp(offset, 0, belt.beltLength - 1) * verticality,
-				offset * vec.getZ());
 	}
 
 	private boolean movingPositive() {
@@ -460,7 +432,7 @@ public class BeltInventory {
 			Function<TransportedItemStack, List<TransportedItemStack>> callback) {
 		List<TransportedItemStack> toBeAdded = new ArrayList<>();
 		boolean dirty = false;
-		for (Iterator<TransportedItemStack> iterator = items.iterator(); iterator.hasNext();) {
+		for (Iterator<TransportedItemStack> iterator = getItems().iterator(); iterator.hasNext();) {
 			TransportedItemStack transportedItemStack = iterator.next();
 			if (Math.abs(position - transportedItemStack.beltPosition) < distance) {
 				List<TransportedItemStack> apply = callback.apply(transportedItemStack);
@@ -478,4 +450,8 @@ public class BeltInventory {
 		}
 	}
 
+	public List<TransportedItemStack> getItems() {
+		return items;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/relays/belt/transport/BeltMovementHandler.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.contraptions.relays.belt;
+package com.simibubi.create.modules.contraptions.relays.belt.transport;
 
 import static net.minecraft.entity.MoverType.SELF;
 import static net.minecraft.util.Direction.AxisDirection.NEGATIVE;
@@ -9,8 +9,10 @@ import java.util.List;
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.modules.contraptions.components.contraptions.ContraptionEntity;
 import com.simibubi.create.modules.contraptions.relays.belt.AllBeltAttachments.BeltAttachmentState;
+import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock.Part;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock.Slope;
+import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntity;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.entity.Entity;
@@ -50,6 +52,10 @@ public class BeltMovementHandler {
 			ticksSinceLastCollision++;
 			return this;
 		}
+		
+		public int getTicksSinceLastCollision() {
+			return ticksSinceLastCollision;
+		}
 	}
 
 	public static boolean canBeTransported(Entity entity) {

src/main/java/com/simibubi/create/modules/contraptions/relays/belt/transport/ItemHandlerBeltSegment.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.contraptions.relays.belt;
+package com.simibubi.create.modules.contraptions.relays.belt.transport;
 
 import net.minecraft.item.ItemStack;
 import net.minecraftforge.items.IItemHandler;

src/main/java/com/simibubi/create/modules/contraptions/relays/belt/transport/TransportedItemStack.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.contraptions.relays.belt;
+package com.simibubi.create.modules.contraptions.relays.belt.transport;
 
 import java.util.Random;
 

src/main/java/com/simibubi/create/modules/contraptions/relays/encased/AdjustablePulleyBlock.java

@@ -1,6 +1,6 @@
 package com.simibubi.create.modules.contraptions.relays.encased;
 
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
@@ -14,7 +14,7 @@ import net.minecraft.world.IBlockReader;
 import net.minecraft.world.IWorld;
 import net.minecraft.world.World;
 
-public class AdjustablePulleyBlock extends EncasedBeltBlock implements IWithTileEntity<AdjustablePulleyTileEntity> {
+public class AdjustablePulleyBlock extends EncasedBeltBlock implements ITE<AdjustablePulleyTileEntity> {
 
 	public static BooleanProperty POWERED = BlockStateProperties.POWERED;
 
@@ -34,7 +34,8 @@ public class AdjustablePulleyBlock extends EncasedBeltBlock implements IWithTile
 
 	@Override
 	public void onBlockAdded(BlockState state, World worldIn, BlockPos pos, BlockState oldState, boolean isMoving) {
-		if (oldState.getBlock() != state.getBlock())
+		if (oldState.getBlock() == state.getBlock())
+			return;
 		withTileEntityDo(worldIn, pos, AdjustablePulleyTileEntity::neighborChanged);
 	}
 
@@ -61,4 +62,9 @@ public class AdjustablePulleyBlock extends EncasedBeltBlock implements IWithTile
 			worldIn.setBlockState(pos, state.cycle(POWERED), 18);
 	}
 
+	@Override
+	public Class<AdjustablePulleyTileEntity> getTileEntityClass() {
+		return AdjustablePulleyTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/contraptions/relays/encased/EncasedBeltBlock.java

@@ -4,6 +4,7 @@ import com.simibubi.create.foundation.utility.Lang;
 import com.simibubi.create.modules.contraptions.base.DirectionalAxisKineticBlock;
 import com.simibubi.create.modules.contraptions.base.KineticTileEntity;
 import com.simibubi.create.modules.contraptions.base.RotatedPillarKineticBlock;
+
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;

src/main/java/com/simibubi/create/modules/contraptions/relays/encased/GearshiftBlock.java

@@ -1,7 +1,7 @@
 package com.simibubi.create.modules.contraptions.relays.encased;
 
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.modules.contraptions.RotationPropagator;
-import com.simibubi.create.modules.contraptions.base.KineticTileEntity;
 import com.simibubi.create.modules.contraptions.relays.gearbox.GearshiftTileEntity;
 
 import net.minecraft.block.Block;
@@ -17,7 +17,7 @@ import net.minecraft.world.IBlockReader;
 import net.minecraft.world.IWorldReader;
 import net.minecraft.world.World;
 
-public class GearshiftBlock extends EncasedShaftBlock {
+public class GearshiftBlock extends EncasedShaftBlock implements ITE<GearshiftTileEntity> {
 
 	public static final BooleanProperty POWERED = BlockStateProperties.POWERED;
 
@@ -51,7 +51,7 @@ public class GearshiftBlock extends EncasedShaftBlock {
 
 		boolean previouslyPowered = state.get(POWERED);
 		if (previouslyPowered != worldIn.isBlockPowered(pos)) {
-			RotationPropagator.handleRemoved(worldIn, pos, (KineticTileEntity) worldIn.getTileEntity(pos));
+			withTileEntityDo(worldIn, pos, te -> RotationPropagator.handleRemoved(worldIn, pos, te));
 			worldIn.setBlockState(pos, state.cycle(POWERED), 2);
 		}
 	}
@@ -60,4 +60,9 @@ public class GearshiftBlock extends EncasedShaftBlock {
 		return super.hasShaftTowards(world, pos, state, face);
 	}
 
+	@Override
+	public Class<GearshiftTileEntity> getTileEntityClass() {
+		return GearshiftTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/curiosities/partialWindows/WindowInABlockBlock.java

@@ -6,10 +6,11 @@ import java.util.List;
 
 import com.simibubi.create.foundation.block.IHaveCustomBlockModel;
 import com.simibubi.create.foundation.block.IHaveNoBlockItem;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
+import net.minecraft.block.Blocks;
 import net.minecraft.block.FourWayBlock;
 import net.minecraft.block.PaneBlock;
 import net.minecraft.block.material.Material;
@@ -46,7 +47,7 @@ import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 
 public class WindowInABlockBlock extends PaneBlock
-		implements IWithTileEntity<WindowInABlockTileEntity>, IHaveNoBlockItem, IHaveCustomBlockModel {
+		implements ITE<WindowInABlockTileEntity>, IHaveNoBlockItem, IHaveCustomBlockModel {
 
 	public WindowInABlockBlock() {
 		super(Properties.create(Material.ROCK));
@@ -70,14 +71,13 @@ public class WindowInABlockBlock extends PaneBlock
 
 		Vec3d start = player.getEyePosition(1);
 		Vec3d end = start.add(player.getLookVec().scale(player.getAttribute(PlayerEntity.REACH_DISTANCE).getValue()));
-		BlockRayTraceResult target = world
+		BlockRayTraceResult target =
-				.rayTraceBlocks(new RayTraceContext(start, end, BlockMode.OUTLINE, FluidMode.NONE, player));
+			world.rayTraceBlocks(new RayTraceContext(start, end, BlockMode.OUTLINE, FluidMode.NONE, player));
 		if (target == null || target.getHitVec() == null)
 			return super.removedByPlayer(state, world, pos, player, willHarvest, fluid);
 
+		try {
 			WindowInABlockTileEntity tileEntity = getTileEntity(world, pos);
-		if (tileEntity == null)
-			return super.removedByPlayer(state, world, pos, player, willHarvest, fluid);
 			BlockState windowBlock = tileEntity.getWindowBlock();
 			for (AxisAlignedBB bb : windowBlock.getShape(world, pos).toBoundingBoxList()) {
 				if (bb.grow(.1d).contains(target.getHitVec().subtract(new Vec3d(pos)))) {
@@ -96,6 +96,7 @@ public class WindowInABlockBlock extends PaneBlock
 					return false;
 				}
 			}
+		} catch (TileEntityException e) {}
 
 		return super.removedByPlayer(state, world, pos, player, willHarvest, fluid);
 	}
@@ -112,49 +113,36 @@ public class WindowInABlockBlock extends PaneBlock
 
 	@Override
 	public boolean propagatesSkylightDown(BlockState state, IBlockReader reader, BlockPos pos) {
-		WindowInABlockTileEntity tileEntity = getTileEntity(reader, pos);
+		return getSurroundingBlockState(reader, pos).propagatesSkylightDown(reader, pos);
-		if (tileEntity == null)
-			return super.propagatesSkylightDown(state, reader, pos);
-		return tileEntity.getPartialBlock().propagatesSkylightDown(reader, pos);
 	}
 
 	@Override
 	public boolean collisionExtendsVertically(BlockState state, IBlockReader world, BlockPos pos,
 			Entity collidingEntity) {
-		WindowInABlockTileEntity tileEntity = getTileEntity(world, pos);
+		return getSurroundingBlockState(world, pos).collisionExtendsVertically(world, pos, collidingEntity);
-		if (tileEntity == null)
-			return false;
-		return tileEntity.getPartialBlock().collisionExtendsVertically(world, pos, collidingEntity);
 	}
 
 	@Override
 	public float getBlockHardness(BlockState blockState, IBlockReader worldIn, BlockPos pos) {
-		WindowInABlockTileEntity tileEntity = getTileEntity(worldIn, pos);
+		return getSurroundingBlockState(worldIn, pos).getBlockHardness(worldIn, pos);
-		if (tileEntity == null)
-			return 0;
-		return tileEntity.getPartialBlock().getBlockHardness(worldIn, pos);
 	}
 
 	@Override
 	public float getExplosionResistance(BlockState state, IWorldReader world, BlockPos pos, Entity exploder,
 			Explosion explosion) {
-		WindowInABlockTileEntity tileEntity = getTileEntity(world, pos);
+		return getSurroundingBlockState(world, pos).getExplosionResistance(world, pos, exploder, explosion);
-		if (tileEntity == null)
-			return 0;
-		return tileEntity.getPartialBlock().getExplosionResistance(world, pos, exploder, explosion);
 	}
 
 	@Override
 	public ItemStack getPickBlock(BlockState state, RayTraceResult target, IBlockReader world, BlockPos pos,
 			PlayerEntity player) {
-		WindowInABlockTileEntity tileEntity = getTileEntity(world, pos);
+		BlockState window = getWindowBlockState(world, pos);
-		if (tileEntity == null)
+		for (AxisAlignedBB bb : window.getShape(world, pos).toBoundingBoxList()) {
-			return ItemStack.EMPTY;
-		for (AxisAlignedBB bb : tileEntity.getWindowBlock().getShape(world, pos).toBoundingBoxList()) {
 			if (bb.grow(.1d).contains(target.getHitVec().subtract(new Vec3d(pos))))
-				return tileEntity.getWindowBlock().getPickBlock(target, world, pos, player);
+				return window.getPickBlock(target, world, pos, player);
 		}
-		return tileEntity.getPartialBlock().getPickBlock(target, world, pos, player);
+		BlockState surrounding = getSurroundingBlockState(world, pos);
+		return surrounding.getPickBlock(target, world, pos, player);
 	}
 
 	@Override
@@ -171,11 +159,8 @@ public class WindowInABlockBlock extends PaneBlock
 
 	@Override
 	public VoxelShape getShape(BlockState state, IBlockReader worldIn, BlockPos pos, ISelectionContext context) {
-		WindowInABlockTileEntity tileEntity = getTileEntity(worldIn, pos);
+		VoxelShape shape1 = getSurroundingBlockState(worldIn, pos).getShape(worldIn, pos, context);
-		if (tileEntity == null)
+		VoxelShape shape2 = getWindowBlockState(worldIn, pos).getShape(worldIn, pos, context);
-			return makeCuboidShape(7, 0, 7, 9, 16, 9);
-		VoxelShape shape1 = tileEntity.getPartialBlock().getShape(worldIn, pos, context);
-		VoxelShape shape2 = tileEntity.getWindowBlock().getShape(worldIn, pos, context);
 		return VoxelShapes.or(shape1, shape2);
 	}
 
@@ -188,10 +173,7 @@ public class WindowInABlockBlock extends PaneBlock
 	@SuppressWarnings("deprecation")
 	@Override
 	public MaterialColor getMaterialColor(BlockState state, IBlockReader worldIn, BlockPos pos) {
-		WindowInABlockTileEntity tileEntity = getTileEntity(worldIn, pos);
+		return getSurroundingBlockState(worldIn, pos).getMaterialColor(worldIn, pos);
-		if (tileEntity == null)
-			return MaterialColor.AIR;
-		return tileEntity.getPartialBlock().getMaterialColor(worldIn, pos);
 	}
 
 	@Override
@@ -200,8 +182,8 @@ public class WindowInABlockBlock extends PaneBlock
 		withTileEntityDo(worldIn, currentPos, te -> {
 			te.setWindowBlock(
 					te.getWindowBlock().updatePostPlacement(facing, facingState, worldIn, currentPos, facingPos));
-			BlockState blockState = te.getPartialBlock().updatePostPlacement(facing, facingState, worldIn, currentPos,
+			BlockState blockState =
-					facingPos);
+				te.getPartialBlock().updatePostPlacement(facing, facingState, worldIn, currentPos, facingPos);
 			if (blockState.getBlock() instanceof FourWayBlock) {
 				for (BooleanProperty side : Arrays.asList(FourWayBlock.EAST, FourWayBlock.NORTH, FourWayBlock.SOUTH,
 						FourWayBlock.WEST))
@@ -214,6 +196,20 @@ public class WindowInABlockBlock extends PaneBlock
 		return stateIn;
 	}
 
+	private BlockState getSurroundingBlockState(IBlockReader reader, BlockPos pos) {
+		try {
+			return getTileEntity(reader, pos).getPartialBlock();
+		} catch (TileEntityException e) {}
+		return Blocks.AIR.getDefaultState();
+	}
+
+	private BlockState getWindowBlockState(IBlockReader reader, BlockPos pos) {
+		try {
+			return getTileEntity(reader, pos).getWindowBlock();
+		} catch (TileEntityException e) {}
+		return Blocks.AIR.getDefaultState();
+	}
+
 	@OnlyIn(Dist.CLIENT)
 	public boolean isSideInvisible(BlockState state, BlockState adjacentBlockState, Direction side) {
 		return false;
@@ -225,4 +221,9 @@ public class WindowInABlockBlock extends PaneBlock
 		return new WindowInABlockModel(original);
 	}
 
+	@Override
+	public Class<WindowInABlockTileEntity> getTileEntityClass() {
+		return WindowInABlockTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/curiosities/partialWindows/WindowLoggingHandler.java

@@ -0,0 +1,84 @@
+package com.simibubi.create.modules.curiosities.partialWindows;
+
+import java.util.Arrays;
+
+import com.simibubi.create.AllBlockTags;
+import com.simibubi.create.AllBlocks;
+import com.simibubi.create.config.AllConfigs;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.block.FourWayBlock;
+import net.minecraft.block.WallBlock;
+import net.minecraft.item.BlockItem;
+import net.minecraft.item.ItemStack;
+import net.minecraft.state.BooleanProperty;
+import net.minecraft.tileentity.TileEntity;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import net.minecraftforge.common.Tags;
+import net.minecraftforge.event.entity.player.PlayerInteractEvent.RightClickBlock;
+import net.minecraftforge.eventbus.api.Event.Result;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.common.Mod.EventBusSubscriber;
+import net.minecraftforge.fml.common.Mod.EventBusSubscriber.Bus;
+
+@EventBusSubscriber(bus = Bus.FORGE)
+public class WindowLoggingHandler {
+
+	@SubscribeEvent
+	public static void rightClickPartialBlockWithPaneMakesItWindowLogged(RightClickBlock event) {
+		if (event.getUseItem() == Result.DENY)
+			return;
+		if (event.getEntityLiving().isSneaking())
+			return;
+		if (!event.getPlayer().isAllowEdit())
+			return;
+		if (!AllConfigs.SERVER.curiosities.allowGlassPanesInPartialBlocks.get())
+			return;
+
+		ItemStack stack = event.getItemStack();
+		if (stack.isEmpty())
+			return;
+		if (!(stack.getItem() instanceof BlockItem))
+			return;
+		BlockItem item = (BlockItem) stack.getItem();
+		if (!item.isIn(Tags.Items.GLASS_PANES)
+				&& (item.getBlock() == null || !item.getBlock().isIn(Tags.Blocks.GLASS_PANES)))
+			return;
+
+		BlockPos pos = event.getPos();
+		World world = event.getWorld();
+		BlockState blockState = world.getBlockState(pos);
+		if (!AllBlockTags.WINDOWABLE.matches(blockState))
+			return;
+		if (AllBlocks.WINDOW_IN_A_BLOCK.typeOf(blockState))
+			return;
+
+		BlockState defaultState = AllBlocks.WINDOW_IN_A_BLOCK.get().getDefaultState();
+		world.setBlockState(pos, defaultState);
+		TileEntity te = world.getTileEntity(pos);
+		if (te != null && te instanceof WindowInABlockTileEntity) {
+			WindowInABlockTileEntity wte = (WindowInABlockTileEntity) te;
+			wte.setWindowBlock(item.getBlock().getDefaultState());
+			wte.updateWindowConnections();
+
+			if (blockState.getBlock() instanceof FourWayBlock) {
+				for (BooleanProperty side : Arrays.asList(FourWayBlock.EAST, FourWayBlock.NORTH, FourWayBlock.SOUTH,
+						FourWayBlock.WEST))
+					blockState = blockState.with(side, false);
+			}
+			if (blockState.getBlock() instanceof WallBlock)
+				blockState = blockState.with(WallBlock.UP, true);
+
+			wte.setPartialBlock(blockState);
+			wte.requestModelDataUpdate();
+
+			if (!event.getPlayer().isCreative())
+				stack.shrink(1);
+			event.getPlayer().swingArm(event.getHand());
+		}
+
+		event.setCanceled(true);
+	}
+
+}

src/main/java/com/simibubi/create/modules/logistics/InWorldProcessing.java

@@ -12,7 +12,7 @@ import com.simibubi.create.foundation.utility.ColorHelper;
 import com.simibubi.create.modules.contraptions.components.fan.SplashingRecipe;
 import com.simibubi.create.modules.contraptions.processing.ProcessingRecipe;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntity;
-import com.simibubi.create.modules.contraptions.relays.belt.TransportedItemStack;
+import com.simibubi.create.modules.contraptions.relays.belt.transport.TransportedItemStack;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;

src/main/java/com/simibubi/create/modules/logistics/block/AttachedLogisticalBlock.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.logistics.block.belts;
+package com.simibubi.create.modules.logistics.block;
 
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.foundation.block.IHaveNoBlockItem;

src/main/java/com/simibubi/create/modules/logistics/block/RedstoneLinkBlock.java

@@ -1,19 +1,22 @@
 package com.simibubi.create.modules.logistics.block;
 
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.block.ProperDirectionalBlock;
 import com.simibubi.create.foundation.utility.AllShapes;
 import com.simibubi.create.foundation.utility.Iterate;
+import com.simibubi.create.modules.contraptions.IWrenchable;
 
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;
-import net.minecraft.block.material.PushReaction;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.item.BlockItemUseContext;
+import net.minecraft.item.ItemUseContext;
 import net.minecraft.state.BooleanProperty;
 import net.minecraft.state.StateContainer.Builder;
 import net.minecraft.state.properties.BlockStateProperties;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.util.ActionResultType;
 import net.minecraft.util.BlockRenderLayer;
 import net.minecraft.util.Direction;
 import net.minecraft.util.Hand;
@@ -25,7 +28,7 @@ import net.minecraft.world.IBlockReader;
 import net.minecraft.world.IWorldReader;
 import net.minecraft.world.World;
 
-public class RedstoneLinkBlock extends ProperDirectionalBlock {
+public class RedstoneLinkBlock extends ProperDirectionalBlock implements ITE<RedstoneLinkTileEntity>, IWrenchable {
 
 	public static final BooleanProperty POWERED = BlockStateProperties.POWERED;
 	public static final BooleanProperty RECEIVER = BooleanProperty.create("receiver");
@@ -72,11 +75,7 @@ public class RedstoneLinkBlock extends ProperDirectionalBlock {
 
 		if (previouslyPowered != shouldPower) {
 			worldIn.setBlockState(pos, state.cycle(POWERED), 2);
-
+			withTileEntityDo(worldIn, pos, te -> te.transmit(!previouslyPowered));
-			RedstoneLinkTileEntity te = (RedstoneLinkTileEntity) worldIn.getTileEntity(pos);
-			if (te == null)
-				return;
-			te.transmit(!previouslyPowered);
 		}
 	}
 
@@ -118,13 +117,16 @@ public class RedstoneLinkBlock extends ProperDirectionalBlock {
 	@Override
 	public boolean onBlockActivated(BlockState state, World worldIn, BlockPos pos, PlayerEntity player, Hand handIn,
 			BlockRayTraceResult hit) {
-
+		if (player.isSneaking())
-		if (player.isSneaking()) {
+			return toggleMode(state, worldIn, pos);
-			RedstoneLinkTileEntity te = (RedstoneLinkTileEntity) worldIn.getTileEntity(pos);
-			if (te == null)
 		return false;
+	}
 
-			if (!worldIn.isRemote) {
+	public boolean toggleMode(BlockState state, World worldIn, BlockPos pos) {
+		if (worldIn.isRemote)
+			return true;
+		try {
+			RedstoneLinkTileEntity te = getTileEntity(worldIn, pos);
 			Boolean wasReceiver = state.get(RECEIVER);
 			boolean blockPowered = worldIn.isBlockPowered(pos);
 			worldIn.setBlockState(pos, state.cycle(RECEIVER).with(POWERED, blockPowered), 3);
@@ -132,11 +134,16 @@ public class RedstoneLinkBlock extends ProperDirectionalBlock {
 				te.transmit(worldIn.isBlockPowered(pos));
 			} else
 				te.transmit(false);
-			}
 			return true;
+		} catch (TileEntityException e) {}
+		return false;
 	}
 
-		return false;
+	@Override
+	public ActionResultType onWrenched(BlockState state, ItemUseContext context) {
+		if (toggleMode(state, context.getWorld(), context.getPos()))
+			return ActionResultType.SUCCESS;
+		return IWrenchable.super.onWrenched(state, context);
 	}
 
 	@Override
@@ -169,8 +176,8 @@ public class RedstoneLinkBlock extends ProperDirectionalBlock {
 	}
 
 	@Override
-	public PushReaction getPushReaction(BlockState state) {
+	public Class<RedstoneLinkTileEntity> getTileEntityClass() {
-		return PushReaction.BLOCK;
+		return RedstoneLinkTileEntity.class;
 	}
 
 }

src/main/java/com/simibubi/create/modules/logistics/block/StockswitchBlock.java

@@ -1,5 +1,6 @@
 package com.simibubi.create.modules.logistics.block;
 
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.gui.ScreenOpener;
 
 import net.minecraft.block.Block;
@@ -24,7 +25,7 @@ import net.minecraftforge.api.distmarker.OnlyIn;
 import net.minecraftforge.fml.DistExecutor;
 import net.minecraftforge.items.CapabilityItemHandler;
 
-public class StockswitchBlock extends HorizontalBlock {
+public class StockswitchBlock extends HorizontalBlock implements ITE<StockswitchTileEntity> {
 
 	public static final IntegerProperty INDICATOR = IntegerProperty.create("indicator", 0, 6);
 
@@ -52,10 +53,7 @@ public class StockswitchBlock extends HorizontalBlock {
 	}
 
 	private void updateObservedInventory(BlockState state, IWorldReader world, BlockPos pos) {
-		StockswitchTileEntity te = (StockswitchTileEntity) world.getTileEntity(pos);
+		withTileEntityDo(world, pos, StockswitchTileEntity::updateCurrentLevel);
-		if (te == null)
-			return;
-		te.updateCurrentLevel();
 	}
 
 	private boolean isObserving(BlockState state, BlockPos pos, BlockPos observing) {
@@ -74,8 +72,10 @@ public class StockswitchBlock extends HorizontalBlock {
 
 	@Override
 	public int getWeakPower(BlockState blockState, IBlockReader blockAccess, BlockPos pos, Direction side) {
-		StockswitchTileEntity te = (StockswitchTileEntity) blockAccess.getTileEntity(pos);
+		try {
-		return te == null || !te.powered ? 0 : 15;
+			return getTileEntity(blockAccess, pos).powered ? 15 : 0;
+		} catch (TileEntityException e) {}
+		return 0;
 	}
 
 	@Override
@@ -87,9 +87,7 @@ public class StockswitchBlock extends HorizontalBlock {
 	@Override
 	public boolean onBlockActivated(BlockState state, World worldIn, BlockPos pos, PlayerEntity player, Hand handIn,
 			BlockRayTraceResult hit) {
-		DistExecutor.runWhenOn(Dist.CLIENT, () -> () -> {
+		DistExecutor.runWhenOn(Dist.CLIENT, () -> () -> withTileEntityDo(worldIn, pos, this::displayScreen));
-			displayScreen((StockswitchTileEntity) worldIn.getTileEntity(pos));
-		});
 		return true;
 	}
 
@@ -143,4 +141,9 @@ public class StockswitchBlock extends HorizontalBlock {
 		return PushReaction.BLOCK;
 	}
 
+	@Override
+	public Class<StockswitchTileEntity> getTileEntityClass() {
+		return StockswitchTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/logistics/block/belts/BeltAttachableLogisticalBlock.java

@@ -10,7 +10,8 @@ import com.simibubi.create.foundation.behaviour.inventory.SingleTargetAutoExtrac
 import com.simibubi.create.modules.contraptions.relays.belt.AllBeltAttachments.BeltAttachmentState;
 import com.simibubi.create.modules.contraptions.relays.belt.AllBeltAttachments.IBeltAttachment;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntity;
-import com.simibubi.create.modules.contraptions.relays.belt.TransportedItemStack;
+import com.simibubi.create.modules.contraptions.relays.belt.transport.TransportedItemStack;
+import com.simibubi.create.modules.logistics.block.AttachedLogisticalBlock;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.item.ItemStack;

src/main/java/com/simibubi/create/modules/logistics/block/belts/observer/BeltObserverBlock.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.logistics.block.belts;
+package com.simibubi.create.modules.logistics.block.belts.observer;
 
 import java.util.Arrays;
 import java.util.List;
@@ -7,7 +7,7 @@ import java.util.Random;
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.foundation.behaviour.base.TileEntityBehaviour;
 import com.simibubi.create.foundation.behaviour.filtering.FilteringBehaviour;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.utility.Lang;
 import com.simibubi.create.foundation.utility.VecHelper;
 import com.simibubi.create.modules.contraptions.IWrenchable;
@@ -17,7 +17,7 @@ import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock.Part;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock.Slope;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntity;
-import com.simibubi.create.modules.contraptions.relays.belt.TransportedItemStack;
+import com.simibubi.create.modules.contraptions.relays.belt.transport.TransportedItemStack;
 
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
@@ -47,7 +47,7 @@ import net.minecraft.world.IWorld;
 import net.minecraft.world.World;
 
 public class BeltObserverBlock extends HorizontalBlock
-		implements IWithTileEntity<BeltObserverTileEntity>, IBeltAttachment, IWrenchable {
+		implements ITE<BeltObserverTileEntity>, IBeltAttachment, IWrenchable {
 
 	public static final BooleanProperty POWERED = BlockStateProperties.POWERED;
 	public static final BooleanProperty BELT = BooleanProperty.create("belt");
@@ -302,4 +302,9 @@ public class BeltObserverBlock extends HorizontalBlock
 		}
 	}
 
+	@Override
+	public Class<BeltObserverTileEntity> getTileEntityClass() {
+		return BeltObserverTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/logistics/block/belts/observer/BeltObserverFilterSlot.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.logistics.block.belts;
+package com.simibubi.create.modules.logistics.block.belts.observer;
 
 import com.simibubi.create.foundation.behaviour.ValueBoxTransform;
 import com.simibubi.create.foundation.utility.AngleHelper;

src/main/java/com/simibubi/create/modules/logistics/block/belts/observer/BeltObserverTileEntity.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.logistics.block.belts;
+package com.simibubi.create.modules.logistics.block.belts.observer;
 
 import java.util.List;
 
@@ -6,11 +6,12 @@ import com.simibubi.create.AllTileEntities;
 import com.simibubi.create.foundation.behaviour.base.SmartTileEntity;
 import com.simibubi.create.foundation.behaviour.base.TileEntityBehaviour;
 import com.simibubi.create.foundation.behaviour.filtering.FilteringBehaviour;
+import com.simibubi.create.modules.contraptions.relays.belt.BeltHelper;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntity;
-import com.simibubi.create.modules.logistics.block.belts.BeltObserverBlock.Mode;
+import com.simibubi.create.modules.logistics.block.belts.observer.BeltObserverBlock.Mode;
 
 import net.minecraft.nbt.CompoundNBT;
-import net.minecraft.tileentity.TileEntity;
+import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.Vec3d;
 
 public class BeltObserverTileEntity extends SmartTileEntity {
@@ -43,16 +44,16 @@ public class BeltObserverTileEntity extends SmartTileEntity {
 		if (getBlockState().get(BeltObserverBlock.MODE) != Mode.DETECT)
 			return;
 
-		TileEntity tileEntity =
+		BlockPos targetPos = pos.offset(getBlockState().get(BeltObserverBlock.HORIZONTAL_FACING));
-			world.getTileEntity(pos.offset(getBlockState().get(BeltObserverBlock.HORIZONTAL_FACING)));
+
-		if (!(tileEntity instanceof BeltTileEntity))
+		BeltTileEntity beltTE = BeltHelper.getSegmentTE(world, targetPos);
+		if (beltTE == null)
 			return;
-		BeltTileEntity belt = (BeltTileEntity) tileEntity;
+		BeltTileEntity controllerTE = beltTE.getControllerTE();
-		BeltTileEntity controllerTE = belt.getControllerTE();
 		if (controllerTE == null)
 			return;
 
-		controllerTE.getInventory().forEachWithin(belt.index + .5f, .45f, stack -> {
+		controllerTE.getInventory().forEachWithin(beltTE.index + .5f, .45f, stack -> {
 			if (filtering.test(stack.stack) && turnOffTicks != 6) {
 				world.setBlockState(pos, getBlockState().with(BeltObserverBlock.POWERED, true));
 				world.notifyNeighborsOfStateChange(pos, getBlockState().getBlock());

src/main/java/com/simibubi/create/modules/logistics/block/belts/observer/BeltObserverTileEntityRenderer.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.logistics.block.belts;
+package com.simibubi.create.modules.logistics.block.belts.observer;
 
 import com.mojang.blaze3d.platform.GLX;
 import com.simibubi.create.foundation.behaviour.filtering.FilteringRenderer;

src/main/java/com/simibubi/create/modules/logistics/block/belts/tunnel/BeltTunnelBlock.java

@@ -1,13 +1,14 @@
-package com.simibubi.create.modules.contraptions.relays.belt;
+package com.simibubi.create.modules.logistics.block.belts.tunnel;
 
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
 import com.simibubi.create.AllBlocks;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.utility.Lang;
 import com.simibubi.create.modules.contraptions.IWrenchable;
+import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltBlock.Slope;
 
 import net.minecraft.block.Block;
@@ -34,7 +35,7 @@ import net.minecraft.world.IWorld;
 import net.minecraft.world.IWorldReader;
 import net.minecraft.world.World;
 
-public class BeltTunnelBlock extends Block implements IWithTileEntity<BeltTunnelTileEntity>, IWrenchable {
+public class BeltTunnelBlock extends Block implements ITE<BeltTunnelTileEntity>, IWrenchable {
 
 	public static final IProperty<Shape> SHAPE = EnumProperty.create("shape", Shape.class);
 	public static final IProperty<Axis> HORIZONTAL_AXIS = BlockStateProperties.HORIZONTAL_AXIS;
@@ -245,4 +246,9 @@ public class BeltTunnelBlock extends Block implements IWithTileEntity<BeltTunnel
 		super.fillStateContainer(builder);
 	}
 
+	@Override
+	public Class<BeltTunnelTileEntity> getTileEntityClass() {
+		return BeltTunnelTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/logistics/block/belts/tunnel/BeltTunnelShapes.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.contraptions.relays.belt;
+package com.simibubi.create.modules.logistics.block.belts.tunnel;
 
 import static net.minecraft.block.Block.makeCuboidShape;
 

src/main/java/com/simibubi/create/modules/logistics/block/belts/tunnel/BeltTunnelTileEntity.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.contraptions.relays.belt;
+package com.simibubi.create.modules.logistics.block.belts.tunnel;
 
 import java.util.HashMap;
 import java.util.LinkedList;
@@ -10,7 +10,7 @@ import com.simibubi.create.AllBlocks;
 import com.simibubi.create.AllTileEntities;
 import com.simibubi.create.foundation.block.SyncedTileEntity;
 import com.simibubi.create.foundation.gui.widgets.InterpolatedChasingValue;
-import com.simibubi.create.modules.contraptions.relays.belt.BeltTunnelBlock.Shape;
+import com.simibubi.create.modules.logistics.block.belts.tunnel.BeltTunnelBlock.Shape;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.item.ItemStack;

src/main/java/com/simibubi/create/modules/logistics/block/belts/tunnel/BeltTunnelTileEntityRenderer.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.contraptions.relays.belt;
+package com.simibubi.create.modules.logistics.block.belts.tunnel;
 
 import com.simibubi.create.AllBlockPartials;
 import com.simibubi.create.foundation.block.SafeTileEntityRendererFast;

src/main/java/com/simibubi/create/modules/logistics/block/extractor/ExtractorBlock.java

@@ -6,7 +6,7 @@ import com.simibubi.create.foundation.utility.AngleHelper;
 import com.simibubi.create.foundation.utility.VecHelper;
 import com.simibubi.create.modules.contraptions.components.contraptions.IPortableBlock;
 import com.simibubi.create.modules.contraptions.components.contraptions.MovementBehaviour;
-import com.simibubi.create.modules.logistics.block.belts.AttachedLogisticalBlock;
+import com.simibubi.create.modules.logistics.block.AttachedLogisticalBlock;
 import com.simibubi.create.modules.logistics.block.belts.BeltAttachableLogisticalBlock;
 
 import net.minecraft.block.Block;

src/main/java/com/simibubi/create/modules/logistics/block/extractor/ExtractorMovementBehaviour.java

@@ -4,7 +4,7 @@ import com.simibubi.create.foundation.item.ItemHelper;
 import com.simibubi.create.foundation.utility.VecHelper;
 import com.simibubi.create.modules.contraptions.components.contraptions.MovementBehaviour;
 import com.simibubi.create.modules.contraptions.components.contraptions.MovementContext;
-import com.simibubi.create.modules.logistics.block.belts.AttachedLogisticalBlock;
+import com.simibubi.create.modules.logistics.block.AttachedLogisticalBlock;
 import com.simibubi.create.modules.logistics.item.filter.FilterItem;
 
 import net.minecraft.entity.Entity;

src/main/java/com/simibubi/create/modules/logistics/block/extractor/ExtractorSlots.java

@@ -5,7 +5,7 @@ import static net.minecraft.block.HorizontalBlock.HORIZONTAL_FACING;
 import com.simibubi.create.foundation.behaviour.ValueBoxTransform;
 import com.simibubi.create.foundation.utility.AngleHelper;
 import com.simibubi.create.foundation.utility.VecHelper;
-import com.simibubi.create.modules.logistics.block.belts.AttachedLogisticalBlock;
+import com.simibubi.create.modules.logistics.block.AttachedLogisticalBlock;
 import com.simibubi.create.modules.logistics.block.transposer.TransposerBlock;
 
 import net.minecraft.block.BlockState;

src/main/java/com/simibubi/create/modules/logistics/block/extractor/ExtractorTileEntity.java

@@ -14,7 +14,7 @@ import com.simibubi.create.foundation.behaviour.inventory.SingleTargetAutoExtrac
 import com.simibubi.create.foundation.utility.VecHelper;
 import com.simibubi.create.modules.contraptions.base.KineticTileEntity;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntity;
-import com.simibubi.create.modules.logistics.block.belts.AttachedLogisticalBlock;
+import com.simibubi.create.modules.logistics.block.AttachedLogisticalBlock;
 
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.item.ItemEntity;

src/main/java/com/simibubi/create/modules/logistics/block/extractor/LinkedExtractorBlock.java

@@ -5,7 +5,7 @@ import org.apache.commons.lang3.tuple.Pair;
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.foundation.utility.AngleHelper;
 import com.simibubi.create.foundation.utility.VecHelper;
-import com.simibubi.create.modules.logistics.block.belts.AttachedLogisticalBlock;
+import com.simibubi.create.modules.logistics.block.AttachedLogisticalBlock;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.tileentity.TileEntity;

src/main/java/com/simibubi/create/modules/logistics/block/funnel/FunnelBlock.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.logistics.block.belts;
+package com.simibubi.create.modules.logistics.block.funnel;
 
 import java.util.Arrays;
 import java.util.Collections;
@@ -7,14 +7,16 @@ import java.util.List;
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.foundation.behaviour.base.TileEntityBehaviour;
 import com.simibubi.create.foundation.behaviour.filtering.FilteringBehaviour;
-import com.simibubi.create.foundation.block.IWithTileEntity;
+import com.simibubi.create.foundation.block.ITE;
 import com.simibubi.create.foundation.utility.AllShapes;
 import com.simibubi.create.modules.contraptions.components.contraptions.IPortableBlock;
 import com.simibubi.create.modules.contraptions.components.contraptions.MovementBehaviour;
 import com.simibubi.create.modules.contraptions.relays.belt.AllBeltAttachments.BeltAttachmentState;
 import com.simibubi.create.modules.contraptions.relays.belt.AllBeltAttachments.IBeltAttachment;
+import com.simibubi.create.modules.contraptions.relays.belt.BeltHelper;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntity;
-import com.simibubi.create.modules.contraptions.relays.belt.TransportedItemStack;
+import com.simibubi.create.modules.contraptions.relays.belt.transport.TransportedItemStack;
+import com.simibubi.create.modules.logistics.block.AttachedLogisticalBlock;
 
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
@@ -36,7 +38,8 @@ import net.minecraft.world.IBlockReader;
 import net.minecraft.world.IWorld;
 import net.minecraft.world.World;
 
-public class FunnelBlock extends AttachedLogisticalBlock implements IBeltAttachment, IWithTileEntity<FunnelTileEntity>, IPortableBlock {
+public class FunnelBlock extends AttachedLogisticalBlock
+		implements IBeltAttachment, ITE<FunnelTileEntity>, IPortableBlock {
 
 	public static final BooleanProperty BELT = BooleanProperty.create("belt");
 	public static final MovementBehaviour MOVEMENT = new FunnelMovementBehaviour();
@@ -123,17 +126,18 @@ public class FunnelBlock extends AttachedLogisticalBlock implements IBeltAttachm
 	@Override
 	public void onBlockAdded(BlockState state, World worldIn, BlockPos pos, BlockState oldState, boolean isMoving) {
 		onAttachmentPlaced(worldIn, pos, state);
+		if (worldIn.isRemote)
+			return;
 
 		if (isOnBelt(worldIn, pos)) {
-			TileEntity te = worldIn.getTileEntity(pos.down());
+			BeltTileEntity belt = BeltHelper.getSegmentTE(worldIn, pos.down());
-			if (!(te instanceof BeltTileEntity))
+			if (belt == null)
 				return;
-			BeltTileEntity belt = (BeltTileEntity) te;
+
 			BeltTileEntity controllerBelt = belt.getControllerTE();
 			if (controllerBelt == null)
 				return;
-			if (worldIn.isRemote)
+
-				return;
 			controllerBelt.getInventory().forEachWithin(belt.index + .5f, .55f, (transportedItemStack) -> {
 				controllerBelt.getInventory().eject(transportedItemStack);
 				return Collections.emptyList();
@@ -199,7 +203,7 @@ public class FunnelBlock extends AttachedLogisticalBlock implements IBeltAttachm
 
 	public boolean process(BeltTileEntity belt, TransportedItemStack transported, BeltAttachmentState state) {
 		TileEntity te = belt.getWorld().getTileEntity(state.attachmentPos);
-		if (te == null || !(te instanceof FunnelTileEntity))
+		if (!(te instanceof FunnelTileEntity))
 			return false;
 		FunnelTileEntity funnel = (FunnelTileEntity) te;
 		ItemStack stack = funnel.tryToInsert(transported.stack);
@@ -219,4 +223,9 @@ public class FunnelBlock extends AttachedLogisticalBlock implements IBeltAttachm
 		return MOVEMENT;
 	}
 
+	@Override
+	public Class<FunnelTileEntity> getTileEntityClass() {
+		return FunnelTileEntity.class;
+	}
+
 }

src/main/java/com/simibubi/create/modules/logistics/block/funnel/FunnelFilterSlot.java

@@ -1,8 +1,9 @@
-package com.simibubi.create.modules.logistics.block.belts;
+package com.simibubi.create.modules.logistics.block.funnel;
 
 import com.simibubi.create.foundation.behaviour.ValueBoxTransform;
 import com.simibubi.create.foundation.utility.AngleHelper;
 import com.simibubi.create.foundation.utility.VecHelper;
+import com.simibubi.create.modules.logistics.block.AttachedLogisticalBlock;
 import com.simibubi.create.modules.logistics.block.extractor.ExtractorBlock;
 
 import net.minecraft.block.BlockState;

src/main/java/com/simibubi/create/modules/logistics/block/funnel/FunnelMovementBehaviour.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.logistics.block.belts;
+package com.simibubi.create.modules.logistics.block.funnel;
 
 import java.util.List;
 

src/main/java/com/simibubi/create/modules/logistics/block/funnel/FunnelTileEntity.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.modules.logistics.block.belts;
+package com.simibubi.create.modules.logistics.block.funnel;
 
 import java.util.List;
 
@@ -11,14 +11,15 @@ import com.simibubi.create.foundation.behaviour.filtering.FilteringBehaviour;
 import com.simibubi.create.foundation.behaviour.inventory.InsertingBehaviour;
 import com.simibubi.create.foundation.behaviour.inventory.InventoryManagementBehaviour.Attachments;
 import com.simibubi.create.foundation.utility.VecHelper;
+import com.simibubi.create.modules.contraptions.relays.belt.BeltHelper;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntity;
+import com.simibubi.create.modules.logistics.block.AttachedLogisticalBlock;
 
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.CompoundNBT;
 import net.minecraft.particles.ItemParticleData;
 import net.minecraft.particles.ParticleTypes;
 import net.minecraft.state.properties.BlockStateProperties;
-import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.Direction;
 import net.minecraft.util.SoundCategory;
 import net.minecraft.util.math.BlockPos;
@@ -103,10 +104,7 @@ public class FunnelTileEntity extends SmartTileEntity {
 		BlockPos targetPos = pos.offset(AttachedLogisticalBlock.getBlockFacing(getBlockState()));
 		if (!AllBlocks.BELT.typeOf(world.getBlockState(targetPos)))
 			return null;
-		TileEntity te = world.getTileEntity(targetPos);
+		return BeltHelper.getSegmentTE(world, targetPos);
-		if (te == null || !(te instanceof BeltTileEntity))
-			return null;
-		return (BeltTileEntity) te;
 	}
 
 	public void spawnParticles(ItemStack stack) {

src/main/java/com/simibubi/create/modules/logistics/block/inventories/FlexcrateBlock.java

@@ -75,10 +75,15 @@ public class FlexcrateBlock extends ProperDirectionalBlock {
 	public void onBlockAdded(BlockState state, World worldIn, BlockPos pos, BlockState oldState, boolean isMoving) {
 		if (oldState.getBlock() != state.getBlock() && state.hasTileEntity() && state.get(DOUBLE)
 				&& state.get(FACING).getAxisDirection() == AxisDirection.POSITIVE) {
-			FlexcrateTileEntity te = (FlexcrateTileEntity) worldIn.getTileEntity(pos);
+			TileEntity tileEntity = worldIn.getTileEntity(pos);
+			if (!(tileEntity instanceof FlexcrateTileEntity))
+				return;
+
+			FlexcrateTileEntity te = (FlexcrateTileEntity) tileEntity;
 			FlexcrateTileEntity other = te.getOtherCrate();
 			if (other == null)
 				return;
+			
 			for (int slot = 0; slot < other.inventory.getSlots(); slot++) {
 				te.inventory.setStackInSlot(slot, other.inventory.getStackInSlot(slot));
 				other.inventory.setStackInSlot(slot, ItemStack.EMPTY);

src/main/java/com/simibubi/create/modules/logistics/block/inventories/FlexcrateContainer.java

@@ -10,6 +10,7 @@ import net.minecraft.inventory.container.Container;
 import net.minecraft.inventory.container.Slot;
 import net.minecraft.item.ItemStack;
 import net.minecraft.network.PacketBuffer;
+import net.minecraft.tileentity.TileEntity;
 import net.minecraftforge.items.SlotItemHandler;
 
 public class FlexcrateContainer extends Container {
@@ -21,11 +22,14 @@ public class FlexcrateContainer extends Container {
 	public FlexcrateContainer(int id, PlayerInventory inv, PacketBuffer extraData) {
 		super(AllContainers.FLEXCRATE.type, id);
 		ClientWorld world = Minecraft.getInstance().world;
-		this.te = (FlexcrateTileEntity) world.getTileEntity(extraData.readBlockPos());
+		TileEntity tileEntity = world.getTileEntity(extraData.readBlockPos());
-		this.te.handleUpdateTag(extraData.readCompoundTag());
 		this.playerInventory = inv;
+		if (tileEntity instanceof FlexcrateTileEntity) {
+			this.te = (FlexcrateTileEntity) tileEntity;
+			this.te.handleUpdateTag(extraData.readCompoundTag());
 			init();
 		}
+	}
 
 	public FlexcrateContainer(int id, PlayerInventory inv, FlexcrateTileEntity te) {
 		super(AllContainers.FLEXCRATE.type, id);

src/main/java/com/simibubi/create/modules/logistics/block/transposer/TransposerTileEntity.java

@@ -9,7 +9,7 @@ import com.simibubi.create.foundation.behaviour.inventory.InsertingBehaviour;
 import com.simibubi.create.foundation.behaviour.inventory.InventoryManagementBehaviour.Attachments;
 import com.simibubi.create.modules.contraptions.base.KineticTileEntity;
 import com.simibubi.create.modules.contraptions.relays.belt.BeltTileEntity;
-import com.simibubi.create.modules.logistics.block.belts.AttachedLogisticalBlock;
+import com.simibubi.create.modules.logistics.block.AttachedLogisticalBlock;
 import com.simibubi.create.modules.logistics.block.extractor.ExtractorTileEntity;
 
 import net.minecraft.item.ItemStack;

src/main/java/com/simibubi/create/modules/schematics/ServerSchematicLoader.java

@@ -26,6 +26,7 @@ import com.simibubi.create.modules.schematics.item.SchematicItem;
 import net.minecraft.block.BlockState;
 import net.minecraft.entity.player.ServerPlayerEntity;
 import net.minecraft.item.ItemStack;
+import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.text.StringTextComponent;
 import net.minecraft.util.text.TranslationTextComponent;
 
@@ -105,8 +106,8 @@ public class ServerSchematicLoader {
 
 		try {
 			// Validate Referenced Block
-			BlockState blockState = dimPos.world.getBlockState(dimPos.pos);
+			SchematicTableTileEntity table = getTable(dimPos);
-			if (!AllBlocks.SCHEMATIC_TABLE.typeOf(blockState))
+			if (table == null)
 				return;
 
 			// Delete schematic with same name
@@ -131,8 +132,7 @@ public class ServerSchematicLoader {
 			activeUploads.put(playerSchematicId, new SchematicUploadEntry(writer, size, dimPos));
 
 			// Notify Tile Entity
-			SchematicTableTileEntity tileEntity = (SchematicTableTileEntity) dimPos.world.getTileEntity(dimPos.pos);
+			table.startUpload(schematic);
-			tileEntity.startUpload(schematic);
 
 		} catch (IOException e) {
 			Create.logger.error("Exception Thrown when starting Upload: " + playerSchematicId);
@@ -167,14 +167,12 @@ public class ServerSchematicLoader {
 			try {
 				entry.stream.write(data);
 				entry.idleTime = 0;
-				BlockState blockState = entry.tablePos.world.getBlockState(entry.tablePos.pos);
-				if (!AllBlocks.SCHEMATIC_TABLE.typeOf(blockState))
-					return;
 
-				SchematicTableTileEntity tileEntity =
+				SchematicTableTileEntity table = getTable(entry.tablePos);
-					(SchematicTableTileEntity) entry.tablePos.world.getTileEntity(entry.tablePos.pos);
+				if (table == null)
-				tileEntity.uploadingProgress = (float) ((double) entry.bytesUploaded / entry.totalBytes);
+					return;
-				tileEntity.sendUpdate = true;
+				table.uploadingProgress = (float) ((double) entry.bytesUploaded / entry.totalBytes);
+				table.sendUpdate = true;
 
 			} catch (IOException e) {
 				Create.logger.error("Exception Thrown when uploading Schematic: " + playerSchematicId);
@@ -203,12 +201,17 @@ public class ServerSchematicLoader {
 		if (dimpos == null)
 			return;
 
-		BlockState blockState = dimpos.world.getBlockState(dimpos.pos);
+		SchematicTableTileEntity table = getTable(dimpos);
-		if (!AllBlocks.SCHEMATIC_TABLE.typeOf(blockState))
+		if (table != null)
-			return;
+			table.finishUpload();
+	}
 
-		SchematicTableTileEntity tileEntity = (SchematicTableTileEntity) dimpos.world.getTileEntity(dimpos.pos);
+	public SchematicTableTileEntity getTable(DimensionPos dimpos) {
-		tileEntity.finishUpload();
+		TileEntity te = dimpos.world.getTileEntity(dimpos.pos);
+		if (!(te instanceof SchematicTableTileEntity))
+			return null;
+		SchematicTableTileEntity table = (SchematicTableTileEntity) te;
+		return table;
 	}
 
 	public void handleFinishedUpload(ServerPlayerEntity player, String schematic) {
@@ -227,11 +230,12 @@ public class ServerSchematicLoader {
 				if (!AllBlocks.SCHEMATIC_TABLE.typeOf(blockState))
 					return;
 
-				SchematicTableTileEntity tileEntity = (SchematicTableTileEntity) dimpos.world.getTileEntity(dimpos.pos);
+				SchematicTableTileEntity table = getTable(dimpos);
-				tileEntity.finishUpload();
+				if (table == null)
-				tileEntity.inventory.setStackInSlot(0, ItemStack.EMPTY);
+					return;
-				tileEntity.inventory.setStackInSlot(1,
+				table.finishUpload();
-						SchematicItem.create(schematic, player.getName().getFormattedText()));
+				table.inventory.setStackInSlot(0, ItemStack.EMPTY);
+				table.inventory.setStackInSlot(1, SchematicItem.create(schematic, player.getName().getFormattedText()));
 
 			} catch (IOException e) {
 				Create.logger.error("Exception Thrown when finishing Upload: " + playerSchematicId);

src/main/java/com/simibubi/create/modules/schematics/block/SchematicTableBlock.java

@@ -1,5 +1,7 @@
 package com.simibubi.create.modules.schematics.block;
 
+import com.simibubi.create.foundation.block.ITE;
+import com.simibubi.create.foundation.item.ItemHelper;
 import com.simibubi.create.foundation.utility.AllShapes;
 
 import net.minecraft.block.Block;
@@ -9,7 +11,6 @@ import net.minecraft.block.HorizontalBlock;
 import net.minecraft.block.material.PushReaction;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.entity.player.ServerPlayerEntity;
-import net.minecraft.inventory.InventoryHelper;
 import net.minecraft.item.BlockItemUseContext;
 import net.minecraft.state.StateContainer.Builder;
 import net.minecraft.tileentity.TileEntity;
@@ -22,7 +23,7 @@ import net.minecraft.world.IBlockReader;
 import net.minecraft.world.World;
 import net.minecraftforge.fml.network.NetworkHooks;
 
-public class SchematicTableBlock extends HorizontalBlock {
+public class SchematicTableBlock extends HorizontalBlock implements ITE<SchematicTableTileEntity> {
 
 	public SchematicTableBlock() {
 		super(Properties.from(Blocks.OAK_PLANKS));
@@ -50,7 +51,8 @@ public class SchematicTableBlock extends HorizontalBlock {
 	}
 
 	@Override
-	public VoxelShape getCollisionShape(BlockState state, IBlockReader worldIn, BlockPos pos, ISelectionContext context) {
+	public VoxelShape getCollisionShape(BlockState state, IBlockReader worldIn, BlockPos pos,
+			ISelectionContext context) {
 		return AllShapes.TABLE_POLE_SHAPE;
 	}
 
@@ -67,15 +69,12 @@ public class SchematicTableBlock extends HorizontalBlock {
 	@Override
 	public boolean onBlockActivated(BlockState state, World worldIn, BlockPos pos, PlayerEntity player, Hand handIn,
 			BlockRayTraceResult hit) {
+		if (worldIn.isRemote)
+			return true;
 
-		if (worldIn.isRemote) {
+		withTileEntityDo(worldIn, pos,
+				te -> NetworkHooks.openGui((ServerPlayerEntity) player, te, te::sendToContainer));
 		return true;
-		} else {
-			SchematicTableTileEntity te = (SchematicTableTileEntity) worldIn.getTileEntity(pos);
-			if (te != null)
-				NetworkHooks.openGui((ServerPlayerEntity) player, te, te::sendToContainer);
-			return true;
-		}
 	}
 
 	@Override
@@ -85,19 +84,16 @@ public class SchematicTableBlock extends HorizontalBlock {
 
 	@Override
 	public void onReplaced(BlockState state, World worldIn, BlockPos pos, BlockState newState, boolean isMoving) {
-		if (worldIn.getTileEntity(pos) == null)
+		if (!state.hasTileEntity() || state.getBlock() == newState.getBlock())
 			return;
 
-		SchematicTableTileEntity te = (SchematicTableTileEntity) worldIn.getTileEntity(pos);
+		withTileEntityDo(worldIn, pos, te -> ItemHelper.dropContents(worldIn, pos, te.inventory));
-		for (int slot = 0; slot < te.inventory.getSlots(); slot++) {
-			InventoryHelper.spawnItemStack(worldIn, pos.getX(), pos.getY(), pos.getZ(),
-					te.inventory.getStackInSlot(slot));
-		}
-
-		if (state.hasTileEntity() && state.getBlock() != newState.getBlock()) {
 		worldIn.removeTileEntity(pos);
 	}
 
+	@Override
+	public Class<SchematicTableTileEntity> getTileEntityClass() {
+		return SchematicTableTileEntity.class;
 	}
 
 }

src/main/java/com/simibubi/create/modules/schematics/block/SchematicTableContainer.java

@@ -11,6 +11,7 @@ import net.minecraft.inventory.container.Container;
 import net.minecraft.inventory.container.Slot;
 import net.minecraft.item.ItemStack;
 import net.minecraft.network.PacketBuffer;
+import net.minecraft.tileentity.TileEntity;
 import net.minecraftforge.items.SlotItemHandler;
 
 public class SchematicTableContainer extends Container {
@@ -24,10 +25,13 @@ public class SchematicTableContainer extends Container {
 		super(AllContainers.SCHEMATIC_TABLE.type, id);
 		player = inv.player;
 		ClientWorld world = Minecraft.getInstance().world;
-		this.te = (SchematicTableTileEntity) world.getTileEntity(extraData.readBlockPos());
+		TileEntity tileEntity = world.getTileEntity(extraData.readBlockPos());
+		if (tileEntity instanceof SchematicTableTileEntity) {
+			this.te = (SchematicTableTileEntity) tileEntity;
 			this.te.handleUpdateTag(extraData.readCompoundTag());
 			init();
 		}
+	}
 
 	public SchematicTableContainer(int id, PlayerInventory inv, SchematicTableTileEntity te) {
 		super(AllContainers.SCHEMATIC_TABLE.type, id);

src/main/java/com/simibubi/create/modules/schematics/block/SchematicannonBlock.java

@@ -1,6 +1,7 @@
 package com.simibubi.create.modules.schematics.block;
 
-import com.simibubi.create.AllItems;
+import com.simibubi.create.foundation.block.ITE;
+import com.simibubi.create.foundation.item.ItemHelper;
 import com.simibubi.create.foundation.utility.AllShapes;
 
 import net.minecraft.block.Block;
@@ -9,8 +10,6 @@ import net.minecraft.block.Blocks;
 import net.minecraft.block.material.PushReaction;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.entity.player.ServerPlayerEntity;
-import net.minecraft.inventory.InventoryHelper;
-import net.minecraft.item.ItemStack;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.Hand;
 import net.minecraft.util.math.BlockPos;
@@ -22,7 +21,7 @@ import net.minecraft.world.IWorldReader;
 import net.minecraft.world.World;
 import net.minecraftforge.fml.network.NetworkHooks;
 
-public class SchematicannonBlock extends Block {
+public class SchematicannonBlock extends Block implements ITE<SchematicannonTileEntity> {
 
 	public SchematicannonBlock() {
 		super(Properties.from(Blocks.DISPENSER));
@@ -55,44 +54,32 @@ public class SchematicannonBlock extends Block {
 
 	@Override
 	public void onNeighborChange(BlockState state, IWorldReader world, BlockPos pos, BlockPos neighbor) {
-		((SchematicannonTileEntity) world.getTileEntity(pos)).findInventories();
+		withTileEntityDo(world, pos, SchematicannonTileEntity::findInventories);
-		super.onNeighborChange(state, world, pos, neighbor);
 	}
 
 	@Override
 	public boolean onBlockActivated(BlockState state, World worldIn, BlockPos pos, PlayerEntity player, Hand handIn,
 			BlockRayTraceResult hit) {
+		if (worldIn.isRemote)
+			return true;
 
-		if (worldIn.isRemote) {
+		withTileEntityDo(worldIn, pos,
+				te -> NetworkHooks.openGui((ServerPlayerEntity) player, te, te::sendToContainer));
 		return true;
-		} else {
-			SchematicannonTileEntity te = (SchematicannonTileEntity) worldIn.getTileEntity(pos);
-			if (te != null)
-				if (AllItems.BLUEPRINT.typeOf(player.getHeldItemMainhand())
-						&& te.inventory.getStackInSlot(0).isEmpty()) {
-					te.inventory.setStackInSlot(0, player.getHeldItemMainhand());
-					player.inventory.setInventorySlotContents(player.inventory.currentItem, ItemStack.EMPTY);
-				}
-			NetworkHooks.openGui((ServerPlayerEntity) player, te, te::sendToContainer);
-			return true;
-		}
 	}
 
 	@Override
 	public void onReplaced(BlockState state, World worldIn, BlockPos pos, BlockState newState, boolean isMoving) {
-		if (worldIn.getTileEntity(pos) == null)
+		if (!state.hasTileEntity() || state.getBlock() == newState.getBlock())
 			return;
 
-		SchematicannonTileEntity te = (SchematicannonTileEntity) worldIn.getTileEntity(pos);
+		withTileEntityDo(worldIn, pos, te -> ItemHelper.dropContents(worldIn, pos, te.inventory));
-		for (int slot = 0; slot < te.inventory.getSlots(); slot++) {
-			InventoryHelper.spawnItemStack(worldIn, pos.getX(), pos.getY(), pos.getZ(),
-					te.inventory.getStackInSlot(slot));
-		}
-
-		if (state.hasTileEntity() && state.getBlock() != newState.getBlock()) {
 		worldIn.removeTileEntity(pos);
 	}
 
+	@Override
+	public Class<SchematicannonTileEntity> getTileEntityClass() {
+		return SchematicannonTileEntity.class;
 	}
 
 }

src/main/java/com/simibubi/create/modules/schematics/block/SchematicannonContainer.java

@@ -10,6 +10,7 @@ import net.minecraft.inventory.container.Container;
 import net.minecraft.inventory.container.Slot;
 import net.minecraft.item.ItemStack;
 import net.minecraft.network.PacketBuffer;
+import net.minecraft.tileentity.TileEntity;
 import net.minecraftforge.items.SlotItemHandler;
 
 public class SchematicannonContainer extends Container {
@@ -21,10 +22,13 @@ public class SchematicannonContainer extends Container {
 		super(AllContainers.SCHEMATICANNON.type, id);
 		player = inv.player;
 		ClientWorld world = Minecraft.getInstance().world;
-		this.te = (SchematicannonTileEntity) world.getTileEntity(buffer.readBlockPos());
+		TileEntity tileEntity = world.getTileEntity(buffer.readBlockPos());
+		if (tileEntity instanceof SchematicannonTileEntity) {
+			this.te = (SchematicannonTileEntity) tileEntity;
 			this.te.handleUpdateTag(buffer.readCompoundTag());
 			init();
 		}
+	}
 
 	public SchematicannonContainer(int id, PlayerInventory inv, SchematicannonTileEntity te) {
 		super(AllContainers.SCHEMATICANNON.type, id);
@@ -34,7 +38,6 @@ public class SchematicannonContainer extends Container {
 	}
 
 	protected void init() {
-
 		int x = 20;
 		int y = 0;
 

src/main/java/com/simibubi/create/modules/schematics/packet/ConfigureSchematicannonPacket.java

@@ -50,11 +50,12 @@ public class ConfigureSchematicannonPacket extends SimplePacketBase {
 		context.get().enqueueWork(() -> {
 			ServerPlayerEntity player = context.get().getSender();
 			World world = player.world;
-
+			if (world == null)
-			if (world == null || world.getTileEntity(pos) == null)
 				return;
+
 			TileEntity tileEntity = world.getTileEntity(pos);
-			if (tileEntity instanceof SchematicannonTileEntity) {
+			if (!(tileEntity instanceof SchematicannonTileEntity))
+				return;
 
 			SchematicannonTileEntity te = (SchematicannonTileEntity) tileEntity;
 			switch (option) {
@@ -88,10 +89,6 @@ public class ConfigureSchematicannonPacket extends SimplePacketBase {
 			}
 
 			te.sendUpdate = true;
-
-			}
-
-			return;
 		});
 		context.get().setPacketHandled(true);
 	}