Schematics Mega Polish

- Schematicannon makes less obnoxious noises
- Schematic Table Container and Gui Improved
- Made New Additions Server Proof
- Server side Schematic handler is less trusting
- Added a Material Checklist for blueprints loaded in the schematicannon
- Added more safety checks regarding Schematics & Chunkloading, Filesystem and Distance
- Added new option for Schematicannon to not replace tileentities
- Schematic upload progress is now handled on the server

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

@@ -1,5 +1,7 @@
 package com.simibubi.create;
 
+import static com.simibubi.create.ServerSchematicLoader.MAX_PACKET_SIZE;
+
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.file.Files;
@@ -19,6 +21,7 @@ import com.simibubi.create.networking.Packets;
 import com.simibubi.create.utility.FilesHelper;
 
 import net.minecraft.client.Minecraft;
+import net.minecraft.util.text.StringTextComponent;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 
@@ -26,17 +29,14 @@ import net.minecraftforge.api.distmarker.OnlyIn;
 public class ClientSchematicLoader {
 
 	public static final int PACKET_DELAY = 10;
-	public static final int PACKET_SIZE = 2048;
 
 	private List<String> availableSchematics;
 	private Map<String, InputStream> activeUploads;
-	private Map<String, ReadProgress> progress;
 	private int packetCycle;
 
 	public ClientSchematicLoader() {
 		availableSchematics = new ArrayList<>();
 		activeUploads = new HashMap<>();
-		progress = new HashMap<>();
 		refresh();
 	}
 
@@ -52,14 +52,6 @@ public class ClientSchematicLoader {
 		}
 	}
 
-	public float getProgress(String schematic) {
-		if (progress.containsKey(schematic)) {
-			return progress.get(schematic).getProgress();
-		}
-		
-		return 0;
-	}
-
 	public void startNewUpload(String schematic) {
 		Path path = Paths.get("schematics", schematic);
 
@@ -70,12 +62,21 @@ public class ClientSchematicLoader {
 
 		InputStream in;
 		try {
+			long size = Files.size(path);
+
+			// Too big
+			if (size > ServerSchematicLoader.MAX_SCHEMATIC_FILE_SIZE) {
+				Minecraft.getInstance().player
+						.sendMessage(new StringTextComponent("Your schematic is too large (" + size / 1024 + " KB)."));
+				Minecraft.getInstance().player
+						.sendMessage(new StringTextComponent("The maximum allowed schematic file size is: "
+								+ ServerSchematicLoader.MAX_SCHEMATIC_FILE_SIZE / 1024 + " KB"));
+				return;
+			}
+
 			in = Files.newInputStream(path, StandardOpenOption.READ);
 			activeUploads.put(schematic, in);
-			ReadProgress tracker = new ReadProgress();
-			tracker.length = Files.size(path);
-			progress.put(schematic, tracker);
-			Packets.channel.sendToServer(PacketSchematicUpload.begin(schematic));
+			Packets.channel.sendToServer(PacketSchematicUpload.begin(schematic, size));
 		} catch (IOException e) {
 			e.printStackTrace();
 		}
@@ -83,13 +84,10 @@ public class ClientSchematicLoader {
 
 	private void continueUpload(String schematic) {
 		if (activeUploads.containsKey(schematic)) {
-			byte[] data = new byte[PACKET_SIZE];
+			byte[] data = new byte[MAX_PACKET_SIZE];
 			try {
 				int status = activeUploads.get(schematic).read(data);
-				
-				progress.get(schematic).progress += status;
-				
-				if (status < PACKET_SIZE) {
+				if (status < MAX_PACKET_SIZE) {
 					data = Arrays.copyOf(data, status);
 				}
 
@@ -100,7 +98,7 @@ public class ClientSchematicLoader {
 					return;
 				}
 
-				if (status < PACKET_SIZE)
+				if (status < MAX_PACKET_SIZE)
 					finishUpload(schematic);
 			} catch (IOException e) {
 				e.printStackTrace();
@@ -121,7 +119,7 @@ public class ClientSchematicLoader {
 
 		try {
 			Files.list(Paths.get("schematics/"))
-					.forEach(path -> {
+					.filter(f -> !Files.isDirectory(f) && f.getFileName().toString().endsWith(".nbt")).forEach(path -> {
 						if (Files.isDirectory(path))
 							return;
 
@@ -143,12 +141,4 @@ public class ClientSchematicLoader {
 		return Paths.get("schematics", name + ".nbt");
 	}
 
-	public static class ReadProgress {
-		public long length;
-		public long progress;
-		public float getProgress() {
-			return (float) (progress * 1d / length);
-		}
-	}
-
 }

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

@@ -23,8 +23,10 @@ import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.Mod.EventBusSubscriber;
 import net.minecraftforge.fml.common.Mod.EventBusSubscriber.Bus;
 import net.minecraftforge.fml.common.gameevent.TickEvent.ClientTickEvent;
+import net.minecraftforge.fml.common.gameevent.TickEvent.ServerTickEvent;
 import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
 import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
+import net.minecraftforge.fml.event.server.FMLServerStoppingEvent;
 import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
 
 @EventBusSubscriber(bus = Bus.FORGE)
@@ -73,6 +75,16 @@ public class Create {
 		sSchematicLoader = new ServerSchematicLoader();
 	}
 	
+	@SubscribeEvent
+	public static void onTick(ServerTickEvent event) {
+		sSchematicLoader.tick();
+	}
+	
+	@SubscribeEvent
+	public static void onServerClose(FMLServerStoppingEvent event) {
+		sSchematicLoader.shutdown();
+	}
+	
 	@OnlyIn(Dist.CLIENT)
 	@SubscribeEvent
 	public static void onClientTick(ClientTickEvent event) {

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

@@ -3,12 +3,17 @@ package com.simibubi.create;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.nio.file.Files;
+import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.StandardOpenOption;
+import java.util.Comparator;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.stream.Stream;
 
-import com.simibubi.create.block.SchematicTableContainer;
 import com.simibubi.create.block.SchematicTableTileEntity;
 import com.simibubi.create.item.ItemBlueprint;
 import com.simibubi.create.networking.PacketSchematicUpload.DimensionPos;
@@ -17,80 +22,196 @@ import com.simibubi.create.utility.FilesHelper;
 import net.minecraft.block.BlockState;
 import net.minecraft.entity.player.ServerPlayerEntity;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.text.StringTextComponent;
 
 public class ServerSchematicLoader {
 
 	public static final String PATH = "schematics/uploaded";
-	private Map<String, OutputStream> activeDownloads;
-	private Map<String, DimensionPos> activeTables;
+	public static final int IDLE_TIMEOUT = 600;
+	public static final int MAX_PACKET_SIZE = 1024;
+	public static final int MAX_SCHEMATICS_PER_PLAYER = 10;
+	public static final int MAX_SCHEMATIC_FILE_SIZE = 256 * 1024; // 256 kiB
+
+	private Map<String, SchematicUploadEntry> activeUploads;
+
+	public class SchematicUploadEntry {
+		public OutputStream stream;
+		public long bytesUploaded;
+		public long totalBytes;
+		public DimensionPos tablePos;
+		public int idleTime;
+
+		public SchematicUploadEntry(OutputStream stream, long totalBytes, DimensionPos tablePos) {
+			this.stream = stream;
+			this.totalBytes = totalBytes;
+			this.tablePos = tablePos;
+			this.bytesUploaded = 0;
+			this.idleTime = 0;
+		}
+	}
 
 	public ServerSchematicLoader() {
-		activeDownloads = new HashMap<>();
-		activeTables = new HashMap<>();
+		activeUploads = new HashMap<>();
 		FilesHelper.createFolderIfMissing("schematics");
 		FilesHelper.createFolderIfMissing(PATH);
 	}
 
-	public void handleNewUpload(ServerPlayerEntity player, String schematic, DimensionPos dimPos) {
+	public void tick() {
+		// Detect Timed out Uploads
+		Set<String> deadEntries = new HashSet<>();
+		for (String upload : activeUploads.keySet()) {
+			SchematicUploadEntry entry = activeUploads.get(upload);
+
+			if (entry.idleTime++ > IDLE_TIMEOUT) {
+				Create.logger.warn("Schematic Upload timed out: " + upload);
+				deadEntries.add(upload);
+			}
+
+		}
+
+		// Remove Timed out Uploads
+		deadEntries.forEach(this::cancelUpload);
+	}
+
+	public void shutdown() {
+		// Close open streams
+		new HashSet<>(activeUploads.keySet()).forEach(this::cancelUpload);
+	}
+
+	public void handleNewUpload(ServerPlayerEntity player, String schematic, long size, DimensionPos dimPos) {
 		String playerPath = PATH + "/" + player.getName().getFormattedText();
 		String playerSchematicId = player.getName().getFormattedText() + "/" + schematic;
-
 		FilesHelper.createFolderIfMissing(playerPath);
 
-		if (activeDownloads.containsKey(playerSchematicId))
+		// Unsupported Format
+		if (!schematic.endsWith(".nbt")) {
+			Create.logger.warn("Attempted Schematic Upload with non-supported Format: " + playerSchematicId);
+		}
+
+		// Too big
+		if (size > MAX_SCHEMATIC_FILE_SIZE) {
+			player.sendMessage(new StringTextComponent("Your schematic is too large (" + size/1024 + " KB)."));
+			player.sendMessage(new StringTextComponent(
+					"The maximum allowed schematic file size is: " + MAX_SCHEMATIC_FILE_SIZE/1024 + " KB"));
+			return;
+		}
+
+		// Skip existing Uploads
+		if (activeUploads.containsKey(playerSchematicId))
 			return;
 
 		try {
+			// Validate Referenced Block
+			BlockState blockState = dimPos.world.getBlockState(dimPos.pos);
+			if (!AllBlocks.SCHEMATIC_TABLE.typeOf(blockState))
+				return;
+
+			// Delete schematic with same name
 			Files.deleteIfExists(Paths.get(PATH, playerSchematicId));
+
+			// Too many Schematics
+			Stream<Path> list = Files.list(Paths.get(playerPath));
+			if (list.count() >= MAX_SCHEMATICS_PER_PLAYER) {
+				Stream<Path> list2 = Files.list(Paths.get(playerPath));
+				Optional<Path> lastFilePath = list2.filter(f -> !Files.isDirectory(f))
+						.min(Comparator.comparingLong(f -> f.toFile().lastModified()));
+				list2.close();
+				if (lastFilePath.isPresent()) {
+					Files.deleteIfExists(lastFilePath.get());
+				}
+			}
+			list.close();
+
+			// Open Stream
 			OutputStream writer = Files.newOutputStream(Paths.get(PATH, playerSchematicId),
 					StandardOpenOption.CREATE_NEW);
-			Create.logger.info("Receiving New Schematic: " + playerSchematicId);
-			activeDownloads.put(playerSchematicId, writer);
-			activeTables.put(playerSchematicId, dimPos);
+			activeUploads.put(playerSchematicId, new SchematicUploadEntry(writer, size, dimPos));
 
-			SchematicTableTileEntity tileEntity = (SchematicTableTileEntity) dimPos.world
-					.getTileEntity(dimPos.pos);
-			tileEntity.uploadingSchematic = schematic;
-			tileEntity.uploadingProgress = 0;
-			BlockState blockState = dimPos.world.getBlockState(dimPos.pos);
-			dimPos.world.notifyBlockUpdate(dimPos.pos, blockState, blockState, 6);
-
-			if (player.openContainer instanceof SchematicTableContainer) {
-				SchematicTableContainer c = (SchematicTableContainer) player.openContainer;
-				c.sendSchematicUpdate = true;
-				c.detectAndSendChanges();
-			}
+			// Notify Tile Entity
+			SchematicTableTileEntity tileEntity = (SchematicTableTileEntity) dimPos.world.getTileEntity(dimPos.pos);
+			tileEntity.startUpload(schematic);
 
 		} catch (IOException e) {
+			Create.logger.error("Exception Thrown when starting Upload: " + playerSchematicId);
 			e.printStackTrace();
 		}
 	}
 
 	public void handleWriteRequest(ServerPlayerEntity player, String schematic, byte[] data) {
 		String playerSchematicId = player.getName().getFormattedText() + "/" + schematic;
-		if (activeDownloads.containsKey(playerSchematicId)) {
+
+		if (activeUploads.containsKey(playerSchematicId)) {
+			SchematicUploadEntry entry = activeUploads.get(playerSchematicId);
+			entry.bytesUploaded += data.length;
+
+			// Size Validations
+			if (data.length > MAX_PACKET_SIZE) {
+				Create.logger.warn("Oversized Upload Packet received: " + playerSchematicId);
+				cancelUpload(playerSchematicId);
+				return;
+			}
+
+			if (entry.bytesUploaded > entry.totalBytes) {
+				Create.logger.warn("Received more data than Expected: " + playerSchematicId);
+				cancelUpload(playerSchematicId);
+				return;
+			}
 
 			try {
-				activeDownloads.get(playerSchematicId).write(data);
-				Create.logger.info("Writing to Schematic: " + playerSchematicId);
+				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) entry.tablePos.world
+						.getTileEntity(entry.tablePos.pos);
+				tileEntity.uploadingProgress = (float) ((double) entry.bytesUploaded / entry.totalBytes);
+				tileEntity.sendUpdate = true;
+
 			} catch (IOException e) {
+				Create.logger.error("Exception Thrown when uploading Schematic: " + playerSchematicId);
 				e.printStackTrace();
-				activeDownloads.remove(playerSchematicId);
-				activeTables.remove(playerSchematicId);
+				cancelUpload(playerSchematicId);
 			}
 		}
 	}
 
+	protected void cancelUpload(String playerSchematicId) {
+		if (!activeUploads.containsKey(playerSchematicId))
+			return;
+
+		SchematicUploadEntry entry = activeUploads.remove(playerSchematicId);
+		try {
+			entry.stream.close();
+			Files.deleteIfExists(Paths.get(PATH, playerSchematicId));
+			Create.logger.warn("Cancelled Schematic Upload: " + playerSchematicId);
+
+		} catch (IOException e) {
+			Create.logger.error("Exception Thrown when cancelling Upload: " + playerSchematicId);
+			e.printStackTrace();
+		}
+
+		DimensionPos dimpos = entry.tablePos;
+		if (dimpos == null)
+			return;
+		
+		BlockState blockState = dimpos.world.getBlockState(dimpos.pos);
+		if (!AllBlocks.SCHEMATIC_TABLE.typeOf(blockState))
+			return;
+		
+		SchematicTableTileEntity tileEntity = (SchematicTableTileEntity) dimpos.world.getTileEntity(dimpos.pos);
+		tileEntity.finishUpload();
+	}
+
 	public void handleFinishedUpload(ServerPlayerEntity player, String schematic) {
 		String playerSchematicId = player.getName().getFormattedText() + "/" + schematic;
 
-		if (activeDownloads.containsKey(playerSchematicId)) {
+		if (activeUploads.containsKey(playerSchematicId)) {
 			try {
-				activeDownloads.get(playerSchematicId).close();
-				activeDownloads.remove(playerSchematicId);
-				Create.logger.info("Finished receiving Schematic: " + playerSchematicId);
-
-				DimensionPos dimpos = activeTables.remove(playerSchematicId);
+				activeUploads.get(playerSchematicId).stream.close();
+				DimensionPos dimpos = activeUploads.remove(playerSchematicId).tablePos;
+				Create.logger.info("New Schematic Uploaded: " + playerSchematicId);
 
 				if (dimpos == null)
 					return;
@@ -100,21 +221,13 @@ public class ServerSchematicLoader {
 					return;
 
 				SchematicTableTileEntity tileEntity = (SchematicTableTileEntity) dimpos.world.getTileEntity(dimpos.pos);
-
+				tileEntity.finishUpload();
 				tileEntity.inventory.setStackInSlot(0, ItemStack.EMPTY);
 				tileEntity.inventory.setStackInSlot(1,
 						ItemBlueprint.create(schematic, player.getName().getFormattedText()));
-				tileEntity.uploadingSchematic = null;
-				tileEntity.uploadingProgress = 0;
-				dimpos.world.notifyBlockUpdate(dimpos.pos, blockState, blockState, 3);
-				
-				if (player.openContainer instanceof SchematicTableContainer) {
-					SchematicTableContainer c = (SchematicTableContainer) player.openContainer;
-					c.sendSchematicUpdate = true;
-					c.detectAndSendChanges();
-				}
 
 			} catch (IOException e) {
+				Create.logger.error("Exception Thrown when finishing Upload: " + playerSchematicId);
 				e.printStackTrace();
 			}
 		}

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

@@ -2,21 +2,15 @@ package com.simibubi.create.block;
 
 import com.simibubi.create.AllContainers;
 import com.simibubi.create.AllItems;
-import com.simibubi.create.networking.PacketSchematicTableContainer;
-import com.simibubi.create.networking.Packets;
 
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.world.ClientWorld;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.entity.player.PlayerInventory;
-import net.minecraft.entity.player.ServerPlayerEntity;
 import net.minecraft.inventory.container.Container;
 import net.minecraft.inventory.container.Slot;
 import net.minecraft.item.ItemStack;
 import net.minecraft.network.PacketBuffer;
-import net.minecraftforge.api.distmarker.Dist;
-import net.minecraftforge.api.distmarker.OnlyIn;
-import net.minecraftforge.fml.network.PacketDistributor;
 import net.minecraftforge.items.SlotItemHandler;
 
 public class SchematicTableContainer extends Container {
@@ -26,11 +20,6 @@ public class SchematicTableContainer extends Container {
 	private Slot outputSlot;
 	private PlayerEntity player;
 
-	public String schematicUploading;
-	public boolean isUploading;
-	public float progress;
-	public boolean sendSchematicUpdate;
-
 	public SchematicTableContainer(int id, PlayerInventory inv, PacketBuffer extraData) {
 		super(AllContainers.SchematicTable.type, id);
 		player = inv.player;
@@ -68,32 +57,17 @@ public class SchematicTableContainer extends Container {
 		// player Slots
 		for (int row = 0; row < 3; ++row) {
 			for (int col = 0; col < 9; ++col) {
-				this.addSlot(new Slot(player.inventory, col + row * 9 + 9, -8 + col * 18, 102 + row * 18));
+				this.addSlot(new Slot(player.inventory, col + row * 9 + 9, 12 + col * 18, 102 + row * 18));
 			}
 		}
 
 		for (int hotbarSlot = 0; hotbarSlot < 9; ++hotbarSlot) {
-			this.addSlot(new Slot(player.inventory, hotbarSlot, -8 + hotbarSlot * 18, 160));
+			this.addSlot(new Slot(player.inventory, hotbarSlot, 12 + hotbarSlot * 18, 160));
 		}
 		
 		detectAndSendChanges();
 	}
 
-	@Override
-	public void detectAndSendChanges() {
-		if (te.uploadingSchematic != null) {
-			schematicUploading = te.uploadingSchematic;
-			progress = te.uploadingProgress;
-			isUploading = true;
-		} else {
-			schematicUploading = null;
-			progress = 0;
-			isUploading = false;
-		}
-		super.detectAndSendChanges();
-		sendSchematicInfo();
-	}
-
 	public boolean canWrite() {
 		return inputSlot.getHasStack() && !outputSlot.getHasStack();
 	}
@@ -110,54 +84,14 @@ public class SchematicTableContainer extends Container {
 			return ItemStack.EMPTY;
 
 		ItemStack stack = clickedSlot.getStack();
-		if (clickedSlot == inputSlot || clickedSlot == outputSlot) {
-			int indexToPut = playerIn.inventory.getFirstEmptyStack();
-
-			if (indexToPut == -1)
-				return ItemStack.EMPTY;
-
-			playerIn.inventory.setInventorySlotContents(indexToPut, stack);
-			clickedSlot.putStack(ItemStack.EMPTY);
-			return ItemStack.EMPTY;
-		}
-
-		if (AllItems.EMPTY_BLUEPRINT.typeOf(stack) && !inputSlot.getHasStack()) {
-			clickedSlot.putStack(ItemStack.EMPTY);
-			inputSlot.putStack(stack);
-		}
+		if (index < 2)
+			mergeItemStack(stack, 2, inventorySlots.size(), false);
+		else 
+			mergeItemStack(stack, 0, 1, false);
 		
 		return ItemStack.EMPTY;
 	}
 
-	public void sendSchematicInfo() {
-		if (player instanceof ServerPlayerEntity) {
-			if (sendSchematicUpdate) {
-				Packets.channel.send(PacketDistributor.PLAYER.with(() -> (ServerPlayerEntity) player),
-						new PacketSchematicTableContainer(schematicUploading, progress));
-				sendSchematicUpdate = false;
-			}
-		}
-	}
-
-	@OnlyIn(Dist.CLIENT)
-	public void receiveSchematicInfo(String schematic, float progress) {
-		if (schematic.isEmpty()) {
-			this.schematicUploading = null;
-			this.isUploading = false;
-			this.progress = 0;
-			return;
-		}
-
-		this.isUploading = true;
-		this.schematicUploading = schematic;
-		this.progress = .5f;
-	}
-
-	@Override
-	public void onContainerClosed(PlayerEntity playerIn) {
-		super.onContainerClosed(playerIn);
-	}
-
 	public SchematicTableTileEntity getTileEntity() {
 		return te;
 	}

src/main/java/com/simibubi/create/block/SchematicTableTileEntity.java

@@ -18,8 +18,10 @@ import net.minecraftforge.items.ItemStackHandler;
 public class SchematicTableTileEntity extends TileEntitySynced implements ITickableTileEntity, INamedContainerProvider {
 
 	public SchematicTableInventory inventory;
+	public boolean isUploading;
 	public String uploadingSchematic;
 	public float uploadingProgress;
+	public boolean sendUpdate;
 
 	public class SchematicTableInventory extends ItemStackHandler {
 		public SchematicTableInventory() {
@@ -52,29 +54,61 @@ public class SchematicTableTileEntity extends TileEntitySynced implements ITicka
 	@Override
 	public void read(CompoundNBT compound) {
 		inventory.deserializeNBT(compound.getCompound("Inventory"));
-		if (compound.contains("Schematic")) {
+		readClientUpdate(compound);
+		super.read(compound);
+	}
+
+	@Override
+	public void readClientUpdate(CompoundNBT compound) {
+		if (compound.contains("Uploading")) {
+			isUploading = true;
 			uploadingSchematic = compound.getString("Schematic");
 			uploadingProgress = compound.getFloat("Progress");
 		} else {
+			isUploading = false;
 			uploadingSchematic = null;
 			uploadingProgress = 0;
 		}
-		super.read(compound);
 	}
 
 	@Override
 	public CompoundNBT write(CompoundNBT compound) {
 		compound.put("Inventory", inventory.serializeNBT());
-		if (uploadingSchematic != null) {
-			compound.putString("Schematic", uploadingSchematic);
-			compound.putFloat("Progress", uploadingProgress);
-		}
+		writeToClient(compound);
 		return super.write(compound);
 	}
 
 	@Override
-	public void tick() {
+	public CompoundNBT writeToClient(CompoundNBT compound) {
+		if (isUploading) {
+			compound.putBoolean("Uploading", true);
+			compound.putString("Schematic", uploadingSchematic);
+			compound.putFloat("Progress", uploadingProgress);
+		}
+		return compound;
+	}
 
+	@Override
+	public void tick() {
+		// Update Client Tile
+		if (sendUpdate) {
+			sendUpdate = false;
+			world.notifyBlockUpdate(pos, getBlockState(), getBlockState(), 6);
+		}
+	}
+	
+	public void startUpload(String schematic) {
+		isUploading = true;
+		uploadingProgress = 0;
+		uploadingSchematic = schematic;
+		sendUpdate = true;
+	}
+	
+	public void finishUpload() {
+		isUploading = false;
+		uploadingProgress = 0;
+		uploadingSchematic = null;
+		sendUpdate = true;
 	}
 
 	@Override

src/main/java/com/simibubi/create/block/SchematicannonRenderer.java

@@ -1,11 +1,14 @@
 package com.simibubi.create.block;
 
+import java.util.Random;
+
 import com.mojang.blaze3d.platform.GlStateManager;
 import com.simibubi.create.AllBlocks;
 
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.renderer.texture.AtlasTexture;
 import net.minecraft.client.renderer.tileentity.TileEntityRenderer;
+import net.minecraft.particles.ParticleTypes;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.MathHelper;
 import net.minecraft.util.math.Vec3d;
@@ -84,13 +87,27 @@ public class SchematicannonRenderer extends TileEntityRenderer<SchematicannonTil
 				Minecraft.getInstance().getBlockRendererDispatcher().renderBlockBrightness(block.state, 1);
 				GlStateManager.popMatrix();
 
-//				Minecraft.getInstance().world.addParticle(ParticleTypes.END_ROD, blockLocation.x, blockLocation.y,
-//						blockLocation.z, 0, 0, 0);
-
 				// Apply Recoil if block was just launched
 				if ((block.ticksRemaining + 1 - partialTicks) > block.totalTicks - 10) {
 					recoil = Math.max(recoil, (block.ticksRemaining + 1 - partialTicks) - block.totalTicks + 10);
 				}
+
+				// Render particles for launch
+				if (block.ticksRemaining == block.totalTicks && tileEntityIn.firstRenderTick) {
+					tileEntityIn.firstRenderTick = false;
+					for (int i = 0; i < 10; i++) {
+						Random r = tileEntityIn.getWorld().getRandom();
+						double sX = cannonOffset.x * .01f;
+						double sY = (cannonOffset.y + 1) * .01f;
+						double sZ = cannonOffset.z * .01f;
+						double rX = r.nextFloat()  - sX * 40;
+						double rY = r.nextFloat() - sY * 40;
+						double rZ = r.nextFloat() - sZ * 40;
+						tileEntityIn.getWorld().addParticle(ParticleTypes.CLOUD, start.x + rX, start.y + rY, start.z + rZ,
+								sX, sY, sZ);
+					}
+				}
+
 			}
 		}
 

src/main/java/com/simibubi/create/block/SchematicannonTileEntity.java

@@ -9,12 +9,12 @@ import com.simibubi.create.AllItems;
 import com.simibubi.create.AllTileEntities;
 import com.simibubi.create.item.ItemBlueprint;
 import com.simibubi.create.schematic.Cuboid;
+import com.simibubi.create.schematic.MaterialChecklist;
 import com.simibubi.create.schematic.SchematicWorld;
 import com.simibubi.create.utility.TileEntitySynced;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;
-import net.minecraft.entity.Entity;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.inventory.container.Container;
@@ -35,10 +35,8 @@ import net.minecraft.util.SoundEvents;
 import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.MathHelper;
-import net.minecraft.util.math.Vec3d;
 import net.minecraft.util.text.ITextComponent;
 import net.minecraft.util.text.StringTextComponent;
-import net.minecraft.world.Explosion;
 import net.minecraft.world.gen.feature.template.Template;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
@@ -49,9 +47,12 @@ import net.minecraftforge.items.ItemStackHandler;
 
 public class SchematicannonTileEntity extends TileEntitySynced implements ITickableTileEntity, INamedContainerProvider {
 
+	public static final int NEIGHBOUR_CHECKING = 100;
 	public static final int PLACEMENT_DELAY = 10;
 	public static final float FUEL_PER_GUNPOWDER = .2f;
-	public static final float FUEL_USAGE_RATE = .0001f;
+	public static final float FUEL_USAGE_RATE = .0005f;
+	public static final int SKIPS_PER_TICK = 10;
+	public static final int MAX_ANCHOR_DISTANCE = 256;
 
 	public enum State {
 		STOPPED, PAUSED, RUNNING;
@@ -62,6 +63,8 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 
 	// Sync
 	public boolean sendUpdate;
+	public boolean dontUpdateChecklist;
+	public int neighbourCheckCooldown;
 
 	// Printer
 	private SchematicWorld blockReader;
@@ -69,26 +72,35 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 	public BlockPos schematicAnchor;
 	public boolean schematicLoaded;
 	public boolean missingBlock;
+	public boolean blockNotLoaded;
 	public boolean hasCreativeCrate;
 	private int printerCooldown;
+	private int skipsLeft;
+	private boolean blockSkipped;
 
 	public BlockPos target;
 	public BlockPos previousTarget;
 	public List<IItemHandler> attachedInventories;
 	public List<LaunchedBlock> flyingBlocks;
+	public MaterialChecklist checklist;
 
 	// Gui information
 	public float fuelLevel;
-	public float paperPrintingProgress;
+	public float bookPrintingProgress;
 	public float schematicProgress;
 	public String statusMsg;
 	public State state;
+	public int blocksPlaced;
+	public int blocksToPlace;
 
 	// Settings
 	public int replaceMode;
 	public boolean skipMissing;
 	public boolean replaceTileEntities;
 
+	// Render
+	public boolean firstRenderTick;
+
 	public class SchematicannonInventory extends ItemStackHandler {
 		public SchematicannonInventory() {
 			super(5);
@@ -107,8 +119,8 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 				return AllItems.BLUEPRINT.typeOf(stack);
 			case 1: // Blueprint output
 				return false;
-			case 2: // Paper input
-				return stack.getItem() == Items.PAPER;
+			case 2: // Book input
+				return stack.getItem() == Items.BOOK || stack.getItem() == Items.WRITTEN_BOOK;
 			case 3: // Material List output
 				return false;
 			case 4: // Gunpowder
@@ -168,12 +180,18 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 		statusMsg = "Idle";
 		state = State.STOPPED;
 		replaceMode = 2;
+		neighbourCheckCooldown = NEIGHBOUR_CHECKING;
+		checklist = new MaterialChecklist();
 	}
 
 	public void findInventories() {
 		hasCreativeCrate = false;
+		attachedInventories.clear();
 		for (Direction facing : Direction.values()) {
 
+			if (!world.isBlockPresent(pos.offset(facing)))
+				continue;
+
 			if (AllBlocks.CREATIVE_CRATE.typeOf(world.getBlockState(pos.offset(facing)))) {
 				hasCreativeCrate = true;
 			}
@@ -200,21 +218,17 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 		super.read(compound);
 	}
 
-	@Override
-	public void onLoad() {
-		findInventories();
-		super.onLoad();
-	}
-
 	@Override
 	public void readClientUpdate(CompoundNBT compound) {
 
 		// Gui information
 		statusMsg = compound.getString("Status");
 		schematicProgress = compound.getFloat("Progress");
-		paperPrintingProgress = compound.getFloat("PaperProgress");
+		bookPrintingProgress = compound.getFloat("PaperProgress");
 		fuelLevel = compound.getFloat("Fuel");
 		state = State.valueOf(compound.getString("State"));
+		blocksPlaced = compound.getInt("AmountPlaced");
+		blocksToPlace = compound.getInt("AmountToPlace");
 
 		// Settings
 		CompoundNBT options = compound.getCompound("Options");
@@ -286,10 +300,12 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 
 		// Gui information
 		compound.putFloat("Progress", schematicProgress);
-		compound.putFloat("PaperProgress", paperPrintingProgress);
+		compound.putFloat("PaperProgress", bookPrintingProgress);
 		compound.putFloat("Fuel", fuelLevel);
 		compound.putString("Status", statusMsg);
 		compound.putString("State", state.name());
+		compound.putInt("AmountPlaced", blocksPlaced);
+		compound.putInt("AmountToPlace", blocksToPlace);
 
 		// Settings
 		CompoundNBT options = new CompoundNBT();
@@ -317,6 +333,12 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 
 	@Override
 	public void tick() {
+		if (neighbourCheckCooldown-- <= 0) {
+			neighbourCheckCooldown = NEIGHBOUR_CHECKING;
+			findInventories();
+		}
+
+		firstRenderTick = true;
 		previousTarget = target;
 		tickFlyingBlocks();
 
@@ -328,8 +350,16 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 		refillFuelIfPossible();
 
 		// Update Printer
+		skipsLeft = SKIPS_PER_TICK;
+		blockSkipped = true;
+
+		while (blockSkipped && skipsLeft-- > 0)
 			tickPrinter();
 
+		schematicProgress = 0;
+		if (blocksToPlace > 0)
+			schematicProgress = (float) blocksPlaced / blocksToPlace;
+
 		// Update Client Tile
 		if (sendUpdate) {
 			sendUpdate = false;
@@ -339,6 +369,7 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 
 	protected void tickPrinter() {
 		ItemStack blueprint = inventory.getStackInSlot(0);
+		blockSkipped = false;
 
 		// Skip if not Active
 		if (state == State.STOPPED) {
@@ -346,8 +377,6 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 				resetPrinter();
 			return;
 		}
-		if (state == State.PAUSED && !missingBlock && fuelLevel > FUEL_USAGE_RATE)
-			return;
 
 		if (blueprint.isEmpty()) {
 			state = State.STOPPED;
@@ -356,31 +385,12 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 			return;
 		}
 
+		if (state == State.PAUSED && !blockNotLoaded && !missingBlock && fuelLevel > FUEL_USAGE_RATE)
+			return;
+
 		// Initialize Printer
 		if (!schematicLoaded) {
-			if (!blueprint.hasTag()) {
-				state = State.STOPPED;
-				statusMsg = "Invalid Blueprint";
-				sendUpdate = true;
-				return;
-			}
-
-			if (!blueprint.getTag().getBoolean("Deployed")) {
-				state = State.STOPPED;
-				statusMsg = "Blueprint not Deployed";
-				sendUpdate = true;
-				return;
-			}
-
-			currentPos = currentPos != null ? currentPos.west() : BlockPos.ZERO.west();
-			schematicAnchor = NBTUtil.readBlockPos(blueprint.getTag().getCompound("Anchor"));
-
-			// Load blocks into reader
-			Template activeTemplate = ItemBlueprint.getSchematic(blueprint);
-			blockReader = new SchematicWorld(new HashMap<>(), new Cuboid(), schematicAnchor);
-			activeTemplate.addBlocksToWorld(blockReader, schematicAnchor, ItemBlueprint.getSettings(blueprint));
-			schematicLoaded = true;
-			sendUpdate = true;
+			initializePrinter(blueprint);
 			return;
 		}
 
@@ -400,7 +410,13 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 		}
 
 		// Update Target
-		if (!missingBlock) {
+		if (hasCreativeCrate) {
+			if (missingBlock) {
+				missingBlock = false;
+				state = State.RUNNING;
+			}
+		}
+		if (!missingBlock && !blockNotLoaded) {
 			advanceCurrentPos();
 
 			// End reached
@@ -412,15 +428,31 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 		}
 
 		// Check block
-		BlockState blockState = blockReader.getBlockState(target);
-		if (!shouldPlace(target, blockState))
+		if (!getWorld().isAreaLoaded(target, 0)) {
+			blockNotLoaded = true;
+			statusMsg = "Block is not loaded";
+			state = State.PAUSED;
 			return;
+		} else {
+			if (blockNotLoaded) {
+				blockNotLoaded = false;
+				state = State.RUNNING;
+			}
+		}
+		
+		BlockState blockState = blockReader.getBlockState(target);
+		if (!shouldPlace(target, blockState)) {
+			statusMsg = "Searching";
+			blockSkipped = true;
+			return;
+		}
 
 		// Find Item
 		ItemStack requiredItem = getItemForBlock(blockState);
 		if (!findItemInAttachedInventories(requiredItem)) {
 			if (skipMissing) {
 				statusMsg = "Skipping";
+				blockSkipped = true;
 				if (missingBlock) {
 					missingBlock = false;
 					state = State.RUNNING;
@@ -436,7 +468,10 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 
 		// Success
 		state = State.RUNNING;
-		statusMsg = "Running...";
+		if (blockState.getBlock() != Blocks.AIR)
+			statusMsg = "Placing: " + blocksPlaced + " / " + blocksToPlace;
+		else
+			statusMsg = "Clearing Blocks";
 		launchBlock(target, blockState);
 		printerCooldown = PLACEMENT_DELAY;
 		fuelLevel -= FUEL_USAGE_RATE;
@@ -444,6 +479,51 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 		missingBlock = false;
 	}
 
+	protected void initializePrinter(ItemStack blueprint) {
+		if (!blueprint.hasTag()) {
+			state = State.STOPPED;
+			statusMsg = "Invalid Blueprint";
+			sendUpdate = true;
+			return;
+		}
+
+		if (!blueprint.getTag().getBoolean("Deployed")) {
+			state = State.STOPPED;
+			statusMsg = "Blueprint not Deployed";
+			sendUpdate = true;
+			return;
+		}
+
+		// Load blocks into reader
+		Template activeTemplate = ItemBlueprint.getSchematic(blueprint);
+		BlockPos anchor = NBTUtil.readBlockPos(blueprint.getTag().getCompound("Anchor"));
+		
+		if (activeTemplate.getSize().equals(BlockPos.ZERO)) {
+			state = State.STOPPED;
+			statusMsg = "Schematic File Expired";
+			inventory.setStackInSlot(0, ItemStack.EMPTY);
+			inventory.setStackInSlot(1, new ItemStack(AllItems.EMPTY_BLUEPRINT.get()));
+			return;
+		}
+		
+		if (!anchor.withinDistance(getPos(), MAX_ANCHOR_DISTANCE)) {
+			state = State.STOPPED;
+			statusMsg = "Target too Far Away";
+			return;
+		}
+		
+		schematicAnchor = anchor;
+		blockReader = new SchematicWorld(new HashMap<>(), new Cuboid(), schematicAnchor);
+		activeTemplate.addBlocksToWorld(blockReader, schematicAnchor, ItemBlueprint.getSettings(blueprint));
+		schematicLoaded = true;
+		state = State.PAUSED;
+		statusMsg = "Ready";
+		updateChecklist();
+		sendUpdate = true;
+		blocksToPlace += blocksPlaced;
+		currentPos = currentPos != null ? currentPos.west() : blockReader.getBounds().getOrigin().west();
+	}
+
 	protected ItemStack getItemForBlock(BlockState blockState) {
 		return new ItemStack(BlockItem.BLOCK_TO_ITEM.getOrDefault(blockState.getBlock(), Items.AIR));
 	}
@@ -467,18 +547,18 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 	protected void advanceCurrentPos() {
 		BlockPos size = blockReader.getBounds().getSize();
 		currentPos = currentPos.offset(Direction.EAST);
+		BlockPos posInBounds = currentPos.subtract(blockReader.getBounds().getOrigin());
 
-		schematicProgress += 1d / (size.getX() * size.getY() * size.getZ());
-		
-		if (currentPos.getX() > size.getX())
-			currentPos = new BlockPos(0, currentPos.getY(), currentPos.getZ() + 1);
-		if (currentPos.getZ() > size.getZ())
-			currentPos = new BlockPos(currentPos.getX(), currentPos.getY() + 1, 0);
+		if (posInBounds.getX() > size.getX())
+			currentPos = new BlockPos(blockReader.getBounds().x, currentPos.getY(), currentPos.getZ() + 1).west();
+		if (posInBounds.getZ() > size.getZ())
+			currentPos = new BlockPos(currentPos.getX(), currentPos.getY() + 1, blockReader.getBounds().z).west();
 
 		// End reached
 		if (currentPos.getY() > size.getY()) {
 			inventory.setStackInSlot(0, ItemStack.EMPTY);
-			inventory.setStackInSlot(1, new ItemStack(AllItems.EMPTY_BLUEPRINT.get()));
+			inventory.setStackInSlot(1,
+					new ItemStack(AllItems.EMPTY_BLUEPRINT.get(), inventory.getStackInSlot(1).getCount() + 1));
 			state = State.STOPPED;
 			statusMsg = "Finished";
 			resetPrinter();
@@ -498,6 +578,8 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 		missingBlock = false;
 		sendUpdate = true;
 		schematicProgress = 0;
+		blocksPlaced = 0;
+		blocksToPlace = 0;
 	}
 
 	protected boolean shouldPlace(BlockPos pos, BlockState state) {
@@ -548,37 +630,52 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 	}
 
 	protected void tickPaperPrinter() {
-		int PaperInput = 2;
-		int PaperOutput = 3;
+		int BookInput = 2;
+		int BookOutput = 3;
 
-		ItemStack paper = inventory.extractItem(PaperInput, 1, true);
-		boolean outputFull = inventory.getStackInSlot(PaperOutput).getCount() == inventory.getSlotLimit(PaperOutput);
+		ItemStack blueprint = inventory.getStackInSlot(0);
+		ItemStack paper = inventory.extractItem(BookInput, 1, true);
+		boolean outputFull = inventory.getStackInSlot(BookOutput).getCount() == inventory.getSlotLimit(BookOutput);
 
 		if (paper.isEmpty() || outputFull) {
-			if (paperPrintingProgress != 0)
+			if (bookPrintingProgress != 0)
 				sendUpdate = true;
-			paperPrintingProgress = 0;
+			bookPrintingProgress = 0;
+			dontUpdateChecklist = false;
 			return;
 		}
 
-		if (paperPrintingProgress >= 1) {
-			paperPrintingProgress = 0;
-			inventory.extractItem(PaperInput, 1, false);
-			inventory.setStackInSlot(PaperOutput,
-					new ItemStack(Items.PAPER, inventory.getStackInSlot(PaperOutput).getCount() + 1));
+		if (!schematicLoaded) {
+			if (!blueprint.isEmpty())
+				initializePrinter(blueprint);
+			return;
+		}
+
+		if (bookPrintingProgress >= 1) {
+			bookPrintingProgress = 0;
+
+			if (!dontUpdateChecklist)
+				updateChecklist();
+
+			dontUpdateChecklist = true;
+			inventory.extractItem(BookInput, 1, false);
+			ItemStack stack = checklist.createItem();
+			stack.setCount(inventory.getStackInSlot(BookOutput).getCount() + 1);
+			inventory.setStackInSlot(BookOutput, stack);
 			sendUpdate = true;
 			return;
 		}
 
-		paperPrintingProgress += 0.05f;
+		bookPrintingProgress += 0.05f;
 		sendUpdate = true;
 	}
 
 	protected void launchBlock(BlockPos target, BlockState state) {
+		if (state.getBlock() != Blocks.AIR)
+			blocksPlaced++;
 		flyingBlocks.add(new LaunchedBlock(target, state));
-		Vec3d explosionPos = new Vec3d(pos).add(new Vec3d(target.subtract(pos)).normalize());
-		this.world.createExplosion((Entity) null, explosionPos.x, explosionPos.y + 1.5f, explosionPos.z, 0,
-				Explosion.Mode.NONE);
+		world.playSound(null, pos.getX(), pos.getY(), pos.getZ(), SoundEvents.ENTITY_GENERIC_EXPLODE, SoundCategory.BLOCKS,
+				.1f, 1.1f);
 	}
 
 	public void sendToContainer(PacketBuffer buffer) {
@@ -596,4 +693,36 @@ public class SchematicannonTileEntity extends TileEntitySynced implements ITicka
 		return new StringTextComponent(getType().getRegistryName().toString());
 	}
 
+	public void updateChecklist() {
+		checklist.required.clear();
+		checklist.blocksNotLoaded = false;
+		
+		if (schematicLoaded) {
+			blocksToPlace = blocksPlaced;
+			for (BlockPos pos : blockReader.getAllPositions()) {
+				BlockState required = blockReader.getBlockState(pos.add(schematicAnchor));
+				
+				if (!getWorld().isAreaLoaded(pos.add(schematicAnchor), 0)) {
+					checklist.warnBlockNotLoaded();
+					continue;
+				}
+				if (!shouldPlace(pos.add(schematicAnchor), required))
+					continue;
+				ItemStack requiredItem = getItemForBlock(required);
+				checklist.require(requiredItem.getItem());
+				blocksToPlace++;
+			}
+		}
+		checklist.gathered.clear();
+		for (IItemHandler inventory : attachedInventories) {
+			for (int slot = 0; slot < inventory.getSlots(); slot++) {
+				ItemStack stackInSlot = inventory.getStackInSlot(slot);
+				if (inventory.extractItem(slot, 1, true).isEmpty())
+					continue;
+				checklist.collect(stackInSlot);
+			}
+		}
+		sendUpdate = true;
+	}
+
 }

src/main/java/com/simibubi/create/gui/GuiResources.java

@@ -45,8 +45,8 @@ public enum GuiResources {
 	ICON_TARGET("icons.png", 48, 0, 16, 16),
 	ICON_CONFIRM("icons.png", 0, 16, 16, 16),
 	
-	ICON_NORMAL_ROOF("icons.png", 32, 16, 16, 16),
-	ICON_FLAT_ROOF("icons.png", 48, 16, 16, 16),
+	ICON_OPEN_FOLDER("icons.png", 32, 16, 16, 16),
+	ICON_REFRESH("icons.png", 48, 16, 16, 16),
 	
 	ICON_DONT_REPLACE("icons.png", 0, 32, 16, 16),
 	ICON_REPLACE_SOLID("icons.png", 16, 32, 16, 16),
@@ -55,6 +55,7 @@ public enum GuiResources {
 	
 	ICON_TOOL_DEPLOY("icons.png", 0, 48, 16, 16),
 	ICON_SKIP_MISSING("icons.png", 16, 48, 16, 16),
+	ICON_SKIP_TILES("icons.png", 32, 48, 16, 16),
 	
 	ICON_TOOL_MOVE_XZ("icons.png", 0, 64, 16, 16),
 	ICON_TOOL_MOVE_Y("icons.png", 16, 64, 16, 16),

src/main/java/com/simibubi/create/gui/SchematicTableScreen.java

@@ -1,12 +1,12 @@
 package com.simibubi.create.gui;
 
+import java.nio.file.Paths;
 import java.util.List;
 
 import com.mojang.blaze3d.platform.GlStateManager;
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.Create;
 import com.simibubi.create.block.SchematicTableContainer;
-import com.simibubi.create.gui.widgets.AbstractSimiWidget;
 import com.simibubi.create.gui.widgets.DynamicLabel;
 import com.simibubi.create.gui.widgets.OptionScrollArea;
 import com.simibubi.create.gui.widgets.ScrollArea;
@@ -14,29 +14,25 @@ import com.simibubi.create.gui.widgets.SimiButton;
 
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.IHasContainer;
-import net.minecraft.client.gui.screen.inventory.ContainerScreen;
-import net.minecraft.client.gui.widget.Widget;
 import net.minecraft.client.renderer.RenderHelper;
 import net.minecraft.client.renderer.texture.AtlasTexture;
 import net.minecraft.entity.player.PlayerInventory;
+import net.minecraft.util.Util;
 import net.minecraft.util.math.MathHelper;
 import net.minecraft.util.text.ITextComponent;
 
-public class SchematicTableScreen extends ContainerScreen<SchematicTableContainer>
+public class SchematicTableScreen extends AbstractSimiContainerScreen<SchematicTableContainer>
 		implements IHasContainer<SchematicTableContainer> {
 
-	private ScrollArea schematics;
-	private SimiButton button;
-	private DynamicLabel label;
+	private ScrollArea schematicsArea;
+	private SimiButton confirmButton;
+	private SimiButton folderButton;
+	private SimiButton refreshButton;
+	private DynamicLabel schematicsLabel;
 
 	private float progress;
-	private float lastProgress;
-
-	private int xTopLeft;
-	private int yTopLeft;
-
-	private int xMainWindow;
-	private int yMainWindow;
+	private float chasingProgress;
+	private float lastChasingProgress;
 
 	public SchematicTableScreen(SchematicTableContainer container, PlayerInventory playerInventory,
 			ITextComponent title) {
@@ -45,63 +41,71 @@ public class SchematicTableScreen extends ContainerScreen<SchematicTableContaine
 
 	@Override
 	protected void init() {
+		setWindowSize(GuiResources.SCHEMATIC_TABLE.width, GuiResources.SCHEMATIC_TABLE.height + 50);
 		super.init();
-		xTopLeft = (width - GuiResources.SCHEMATIC_TABLE.width) / 2;
-		yTopLeft = (height - GuiResources.SCHEMATIC_TABLE.height + 50) / 2;
-		xMainWindow = xTopLeft - 40;
-		yMainWindow = yTopLeft - 80;
-		buttons.clear();
+		widgets.clear();
+		
+		int mainLeft = guiLeft - 56;
+		int mainTop = guiTop - 16;
 
 		Create.cSchematicLoader.refresh();
 		List<String> availableSchematics = Create.cSchematicLoader.getAvailableSchematics();
 
 		if (!availableSchematics.isEmpty()) {
-			label = new DynamicLabel(xMainWindow + 36, yMainWindow + 26, "").withShadow();
-			schematics = new OptionScrollArea(xMainWindow + 33, yMainWindow + 23, 134, 14)
-					.forOptions(availableSchematics).titled("Available Schematics").writingTo(label);
-			buttons.add(schematics);
-			buttons.add(label);
-		} else {
-
+			schematicsLabel = new DynamicLabel(mainLeft + 36, mainTop + 26, "").withShadow();
+			schematicsArea = new OptionScrollArea(mainLeft + 33, mainTop + 23, 134, 14).forOptions(availableSchematics)
+					.titled("Available Schematics").writingTo(schematicsLabel);
+			widgets.add(schematicsArea);
+			widgets.add(schematicsLabel);
 		} 
 
-		button = new SimiButton(xMainWindow + 69, yMainWindow + 55, GuiResources.ICON_CONFIRM);
-		buttons.add(button);
+		confirmButton = new SimiButton(mainLeft + 69, mainTop + 55, GuiResources.ICON_CONFIRM);
+		folderButton = new SimiButton(mainLeft + 204, mainTop + 6, GuiResources.ICON_OPEN_FOLDER);
+		refreshButton = new SimiButton(mainLeft + 204, mainTop + 26, GuiResources.ICON_REFRESH);
+		widgets.add(confirmButton);
+		widgets.add(folderButton);
+		widgets.add(refreshButton);
 	}
 
 	@Override
 	protected void drawGuiContainerBackgroundLayer(float partialTicks, int mouseX, int mouseY) {
-		int x = xTopLeft;
-		int y = yTopLeft;
+		super.drawGuiContainerBackgroundLayer(partialTicks, mouseX, mouseY);
 		
-		GuiResources.SCHEMATIC_TABLE.draw(this, xMainWindow, yMainWindow);
-		GuiResources.PLAYER_INVENTORY.draw(this, x, y + 20);
-
-		if (container.isUploading)
-			font.drawString("Uploading...", xMainWindow + 76, yMainWindow + 10, GuiResources.FONT_COLOR);
-		else
-			font.drawString("Choose a Schematic", xMainWindow + 50, yMainWindow + 10, GuiResources.FONT_COLOR);
-		font.drawString("Inventory", x + 7, y + 26, 0x666666);
-
-		if (schematics == null) {
-			font.drawStringWithShadow("  No Schematics Saved  ", xMainWindow + 39, yMainWindow + 26, 0xFFDD44);
-		}
 
 	}
 
 	@Override
-	public void render(int mouseX, int mouseY, float pt) {
-		renderBackground();
-		super.render(mouseX, mouseY, pt);
+	protected void renderWindow(int mouseX, int mouseY, float partialTicks) {
+		
+		int x = guiLeft + 20;
+		int y = guiTop;
+		
+		int mainLeft = guiLeft - 56;
+		int mainTop = guiTop - 16;
+
+		GuiResources.PLAYER_INVENTORY.draw(this, x- 16, y + 70 + 14);
+		font.drawString("Inventory", x - 15 + 7, y + 64 + 26, 0x666666);
+
+		GuiResources.SCHEMATIC_TABLE.draw(this, mainLeft, mainTop);
+		if (container.getTileEntity().isUploading)
+			font.drawString("Uploading...", mainLeft + 76, mainTop + 10, GuiResources.FONT_COLOR);
+		else if (container.getSlot(1).getHasStack())
+			font.drawString("Upload Finished!", mainLeft + 60, mainTop + 10, GuiResources.FONT_COLOR);
+		else
+			font.drawString("Schematic Table", mainLeft + 60, mainTop + 10, GuiResources.FONT_COLOR);
+
+		if (schematicsArea == null) {
+			font.drawStringWithShadow("  No Schematics Saved  ", mainLeft + 39, mainTop + 26, 0xFFDD44);
+		}
 		
 		minecraft.getTextureManager().bindTexture(GuiResources.SCHEMATIC_TABLE_PROGRESS.location);
-		int width = (int) (GuiResources.SCHEMATIC_TABLE_PROGRESS.width * MathHelper.lerp(pt, lastProgress, progress));
+		int width = (int) (GuiResources.SCHEMATIC_TABLE_PROGRESS.width
+				* MathHelper.lerp(partialTicks, lastChasingProgress, chasingProgress));
 		int height = GuiResources.SCHEMATIC_TABLE_PROGRESS.height;
 		GlStateManager.disableLighting();
-		blit(xMainWindow + 94, yMainWindow + 56, GuiResources.SCHEMATIC_TABLE_PROGRESS.startX,
+		blit(mainLeft + 94, mainTop + 56, GuiResources.SCHEMATIC_TABLE_PROGRESS.startX,
 				GuiResources.SCHEMATIC_TABLE_PROGRESS.startY, width, height);
 
-		GlStateManager.pushLightingAttributes();
 		GlStateManager.pushMatrix();
 
 		GlStateManager.enableBlend();
@@ -112,73 +116,81 @@ public class SchematicTableScreen extends ContainerScreen<SchematicTableContaine
 		GlStateManager.blendFunc(GlStateManager.SourceFactor.SRC_ALPHA, GlStateManager.DestFactor.ONE_MINUS_SRC_ALPHA);
 		GlStateManager.color4f(1.0F, 1.0F, 1.0F, 1.0F);
 
-		GlStateManager.translated(xTopLeft + 220, yTopLeft + 30, 200);
+		GlStateManager.translated(mainLeft + 270, mainTop + 100, 200);
 		GlStateManager.rotatef(50, -.5f, 1, -.2f);
 		GlStateManager.scaled(50, -50, 50);
 
 		Minecraft.getInstance().getTextureManager().bindTexture(AtlasTexture.LOCATION_BLOCKS_TEXTURE);
-		minecraft.getBlockRendererDispatcher().renderBlockBrightness(AllBlocks.SCHEMATIC_TABLE.get().getDefaultState(), 1);
+		minecraft.getBlockRendererDispatcher().renderBlockBrightness(AllBlocks.SCHEMATIC_TABLE.get().getDefaultState(),
+				1);
 
 		GlStateManager.disableAlphaTest();
 		GlStateManager.disableRescaleNormal();
 
 		GlStateManager.popMatrix();
-		GlStateManager.popAttributes();
-
-		renderHoveredToolTip(mouseX, mouseY);
-		for (Widget w : buttons) {
-			if (w instanceof AbstractSimiWidget && w.isHovered()) {
-				List<String> toolTip = ((AbstractSimiWidget) w).getToolTip();
-				renderTooltip(toolTip, mouseX, mouseY);
-			}
-		}
-	}
-
-	@Override
-	public boolean isPauseScreen() {
-		return false;
 	}
 
 	@Override
 	public void tick() {
 		super.tick();
-		if (container.isUploading) {
-			lastProgress = progress;
-			progress = Create.cSchematicLoader.getProgress(container.schematicUploading);
-			label.colored(0xCCDDFF);
-			button.active = false;
-			schematics.visible = false;
+		boolean finished = container.getSlot(1).getHasStack();
+
+		if (container.getTileEntity().isUploading || finished) {
+			if (finished) {
+				chasingProgress = lastChasingProgress = progress = 1;
+			} else {
+				lastChasingProgress = chasingProgress;
+				progress = container.getTileEntity().uploadingProgress;
+				chasingProgress += (progress - chasingProgress) * .5f;
+			}
+			confirmButton.active = false;
+			
+			if (schematicsLabel != null) {
+				schematicsLabel.colored(0xCCDDFF);
+				schematicsLabel.text = container.getTileEntity().uploadingSchematic;
+			}
+			if (schematicsArea != null)
+				schematicsArea.visible = false;
 
 		} else {
 			progress = 0;
-			lastProgress = 0;
-			label.colored(0xFFFFFF);
-			button.active = true;
-			schematics.visible = true;
+			chasingProgress = lastChasingProgress = 0;
+			confirmButton.active = true;
+			
+			if (schematicsLabel != null)
+				schematicsLabel.colored(0xFFFFFF);
+			if (schematicsArea != null) {
+				schematicsArea.writingTo(schematicsLabel);
+				schematicsArea.visible = true;
+			}
 		}
 	}
 
 	@Override
 	public boolean mouseClicked(double p_mouseClicked_1_, double p_mouseClicked_3_, int p_mouseClicked_5_) {
-		if (button.active && button.isHovered() && ((SchematicTableContainer) container).canWrite() && schematics != null) {
+		if (confirmButton.active && confirmButton.isHovered() && ((SchematicTableContainer) container).canWrite()
+				&& schematicsArea != null) {
 
-			lastProgress = progress = 0;
+			lastChasingProgress = chasingProgress = progress = 0;
 			List<String> availableSchematics = Create.cSchematicLoader.getAvailableSchematics();
-			String schematic = availableSchematics.get(schematics.getState());
+			String schematic = availableSchematics.get(schematicsArea.getState());
 			Create.cSchematicLoader.startNewUpload(schematic);
 		}
 		
+		if (folderButton.isHovered()) {
+			Util.getOSType().openFile(Paths.get("schematics/").toFile());
+		}
+		
+		if (refreshButton.isHovered()) {
+			Create.cSchematicLoader.refresh();
+			List<String> availableSchematics = Create.cSchematicLoader.getAvailableSchematics();
+			widgets.remove(schematicsArea);
+			schematicsArea = new OptionScrollArea(guiLeft - 56 + 33, guiTop - 16 + 23, 134, 14).forOptions(availableSchematics)
+					.titled("Available Schematics").writingTo(schematicsLabel);
+			widgets.add(schematicsArea);
+		}
+
 		return super.mouseClicked(p_mouseClicked_1_, p_mouseClicked_3_, p_mouseClicked_5_);
 	}
 
-	@Override
-	public boolean mouseScrolled(double p_mouseScrolled_1_, double p_mouseScrolled_3_, double p_mouseScrolled_5_) {
-		boolean b = false;
-		for (Widget w : buttons) {
-			if (w.mouseScrolled(p_mouseScrolled_1_, p_mouseScrolled_3_, p_mouseScrolled_5_))
-				b = true;
-		}
-		return b || super.mouseScrolled(p_mouseScrolled_1_, p_mouseScrolled_3_, p_mouseScrolled_5_);
-	}
-
 }

src/main/java/com/simibubi/create/gui/SchematicannonScreen.java

@@ -30,6 +30,8 @@ public class SchematicannonScreen extends AbstractSimiContainerScreen<Schematica
 
 	protected SimiButton skipMissingButton;
 	protected GuiIndicator skipMissingIndicator;
+	protected SimiButton skipTilesButton;
+	protected GuiIndicator skipTilesIndicator;
 
 	protected SimiButton playButton;
 	protected GuiIndicator playIndicator;
@@ -54,12 +56,12 @@ public class SchematicannonScreen extends AbstractSimiContainerScreen<Schematica
 		widgets.clear();
 
 		// Play Pause Stop
-		playButton = new SimiButton(x + 69, y + 55, GuiResources.ICON_PLAY);
-		playIndicator = new GuiIndicator(x + 69, y + 50, "");
+		playButton = new SimiButton(x + 70, y + 55, GuiResources.ICON_PLAY);
+		playIndicator = new GuiIndicator(x + 70, y + 50, "");
 		pauseButton = new SimiButton(x + 88, y + 55, GuiResources.ICON_PAUSE);
 		pauseIndicator = new GuiIndicator(x + 88, y + 50, "");
-		resetButton = new SimiButton(x + 107, y + 55, GuiResources.ICON_STOP);
-		resetIndicator = new GuiIndicator(x + 107, y + 50, "Not Running");
+		resetButton = new SimiButton(x + 106, y + 55, GuiResources.ICON_STOP);
+		resetIndicator = new GuiIndicator(x + 106, y + 50, "Not Running");
 		resetIndicator.state = State.RED;
 		Collections.addAll(widgets, playButton, playIndicator, pauseButton, pauseIndicator, resetButton,
 				resetIndicator);
@@ -73,19 +75,24 @@ public class SchematicannonScreen extends AbstractSimiContainerScreen<Schematica
 				"Replace Solid with Any", "Replace Solid with Empty");
 
 		for (int i = 0; i < 4; i++) {
-			replaceLevelIndicators.add(new GuiIndicator(x + 12 + i * 18, y + 96, ""));
-			replaceLevelButtons.add(new SimiButton(x + 12 + i * 18, y + 101, icons.get(i)));
+			replaceLevelIndicators.add(new GuiIndicator(x + 16 + i * 18, y + 96, ""));
+			replaceLevelButtons.add(new SimiButton(x + 16 + i * 18, y + 101, icons.get(i)));
 			replaceLevelButtons.get(i).setToolTip(toolTips.get(i));
 		}
 		widgets.addAll(replaceLevelButtons);
 		widgets.addAll(replaceLevelIndicators);
 
 		// Other Settings
-		skipMissingButton = new SimiButton(x + 107, y + 101, GuiResources.ICON_SKIP_MISSING);
+		skipMissingButton = new SimiButton(x + 106, y + 101, GuiResources.ICON_SKIP_MISSING);
 		skipMissingButton.setToolTip("Skip missing Blocks");
-		skipMissingIndicator = new GuiIndicator(x + 107, y + 96, "");
+		skipMissingIndicator = new GuiIndicator(x + 106, y + 96, "");
 		Collections.addAll(widgets, skipMissingButton, skipMissingIndicator);
 		
+		skipTilesButton = new SimiButton(x + 124, y + 101, GuiResources.ICON_SKIP_TILES);
+		skipTilesButton.setToolTip("Protect Tile Entities");
+		skipTilesIndicator = new GuiIndicator(x + 124, y + 96, "");
+		Collections.addAll(widgets, skipTilesButton, skipTilesIndicator);
+
 		tick();
 	}
 
@@ -97,6 +104,7 @@ public class SchematicannonScreen extends AbstractSimiContainerScreen<Schematica
 			replaceLevelIndicators.get(replaceMode).state = replaceMode <= te.replaceMode ? State.ON : State.OFF;
 
 		skipMissingIndicator.state = te.skipMissing ? State.ON : State.OFF;
+		skipTilesIndicator.state = !te.replaceTileEntities ? State.ON : State.OFF;
 
 		playIndicator.state = State.OFF;
 		pauseIndicator.state = State.OFF;
@@ -149,6 +157,14 @@ public class SchematicannonScreen extends AbstractSimiContainerScreen<Schematica
 				tip.add(TextFormatting.GRAY + "a required Block for placement, it");
 				tip.add(TextFormatting.GRAY + "will continue at the next Location.");
 			}
+			if (skipTilesButton.isHovered()) {
+				List<String> tip = skipTilesButton.getToolTip();
+				tip.remove(1);
+				tip.add(TextFormatting.BLUE
+						+ (skipTilesIndicator.state == State.ON ? "Currently Enabled" : "Currently Disabled"));
+				tip.add(TextFormatting.GRAY + "The Schematicannon will avoid replacing");
+				tip.add(TextFormatting.GRAY + "data holding blocks such as Chests.");
+			}
 			if (replaceLevelButtons.get(0).isHovered()) {
 				List<String> tip = replaceLevelButtons.get(0).getToolTip();
 				tip.remove(1);
@@ -199,7 +215,7 @@ public class SchematicannonScreen extends AbstractSimiContainerScreen<Schematica
 		SchematicannonTileEntity te = container.getTileEntity();
 		renderPrintingProgress(te.schematicProgress);
 		renderFuelBar(te.fuelLevel);
-		renderChecklistPrinterProgress(te.paperPrintingProgress);
+		renderChecklistPrinterProgress(te.bookPrintingProgress);
 
 		if (!te.inventory.getStackInSlot(0).isEmpty())
 			renderBlueprintHighlight();
@@ -241,6 +257,7 @@ public class SchematicannonScreen extends AbstractSimiContainerScreen<Schematica
 	}
 
 	protected void renderPrintingProgress(float progress) {
+		progress = Math.min(progress, 1);
 		GuiResources sprite = GuiResources.SCHEMATICANNON_PROGRESS;
 		minecraft.getTextureManager().bindTexture(sprite.location);
 		blit(guiLeft + 20 + 39, guiTop + 36, sprite.startX, sprite.startY, (int) (sprite.width * progress),
@@ -299,6 +316,8 @@ public class SchematicannonScreen extends AbstractSimiContainerScreen<Schematica
 
 		if (skipMissingButton.isHovered()) 
 			sendOptionUpdate(Option.SKIP_MISSING, !container.getTileEntity().skipMissing);
+		if (skipTilesButton.isHovered()) 
+			sendOptionUpdate(Option.SKIP_TILES, !container.getTileEntity().replaceTileEntities);
 
 		if (playButton.isHovered() && playButton.active) 
 			sendOptionUpdate(Option.PLAY, true);

src/main/java/com/simibubi/create/item/ItemBlueprint.java

@@ -31,6 +31,7 @@ import net.minecraft.world.World;
 import net.minecraft.world.gen.feature.template.PlacementSettings;
 import net.minecraft.world.gen.feature.template.Template;
 import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
 import net.minecraftforge.fml.DistExecutor;
 import net.minecraftforge.fml.common.thread.SidedThreadGroups;
 
@@ -95,7 +96,7 @@ public class ItemBlueprint extends Item {
 			t.read(nbt);
 
 		} catch (IOException e) {
-			e.printStackTrace();
+			// Player/Server doesnt have schematic saved
 		} finally {
 			if (stream != null)
 				IOUtils.closeQuietly(stream);
@@ -108,7 +109,7 @@ public class ItemBlueprint extends Item {
 	public ActionResultType onItemUse(ItemUseContext context) {
 		if (context.isPlacerSneaking() && context.getHand() == Hand.MAIN_HAND) {
 			DistExecutor.runWhenOn(Dist.CLIENT, () -> () -> {
-				GuiOpener.open(new BlueprintEditScreen());
+				displayBlueprintScreen();
 			});
 			return ActionResultType.SUCCESS;
 		}
@@ -116,11 +117,16 @@ public class ItemBlueprint extends Item {
 		return super.onItemUse(context);
 	}
 
+	@OnlyIn(value = Dist.CLIENT)
+	protected void displayBlueprintScreen() {
+		GuiOpener.open(new BlueprintEditScreen());
+	}
+
 	@Override
 	public ActionResult<ItemStack> onItemRightClick(World worldIn, PlayerEntity playerIn, Hand handIn) {
 		if (playerIn.isSneaking() && handIn == Hand.MAIN_HAND) {
 			DistExecutor.runWhenOn(Dist.CLIENT, () -> () -> {
-				GuiOpener.open(new BlueprintEditScreen());
+				displayBlueprintScreen();
 			});
 			return new ActionResult<ItemStack>(ActionResultType.SUCCESS, playerIn.getHeldItem(handIn));
 		}

src/main/java/com/simibubi/create/networking/PacketConfigureSchematicannon.java

@@ -15,7 +15,7 @@ import net.minecraftforge.fml.network.NetworkEvent.Context;
 public class PacketConfigureSchematicannon {
 
 	public static enum Option {
-		DONT_REPLACE, REPLACE_SOLID, REPLACE_ANY, REPLACE_EMPTY, SKIP_MISSING, PLAY, PAUSE, STOP;
+		DONT_REPLACE, REPLACE_SOLID, REPLACE_ANY, REPLACE_EMPTY, SKIP_MISSING, SKIP_TILES, PLAY, PAUSE, STOP;
 	}
 
 	private Option option;
@@ -66,6 +66,9 @@ public class PacketConfigureSchematicannon {
 				case SKIP_MISSING:
 					te.skipMissing = set;
 					break;
+				case SKIP_TILES:
+					te.replaceTileEntities = set;
+					break;
 					
 				case PLAY:
 					te.state = State.RUNNING;

src/main/java/com/simibubi/create/networking/PacketSchematicTableContainer.java

@@ -1,44 +0,0 @@
-package com.simibubi.create.networking;
-
-import java.util.function.Supplier;
-
-import com.simibubi.create.block.SchematicTableContainer;
-
-import net.minecraft.client.Minecraft;
-import net.minecraft.inventory.container.Container;
-import net.minecraft.network.PacketBuffer;
-import net.minecraftforge.fml.network.NetworkEvent.Context;
-
-public class PacketSchematicTableContainer {
-
-	public String schematic;
-	public float progress;
-
-	public PacketSchematicTableContainer(String schematicToUpload, float progress) {
-		this.schematic = schematicToUpload;
-		if (this.schematic == null)
-			this.schematic = "";
-		this.progress = progress;
-	}
-
-	public PacketSchematicTableContainer(PacketBuffer buffer) {
-		this.schematic = buffer.readString();
-		this.progress = buffer.readFloat();
-	}
-
-	public void toBytes(PacketBuffer buffer) {
-		buffer.writeString(schematic);
-		buffer.writeFloat(progress);
-	}
-
-	public void handle(Supplier<Context> context) {
-		context.get().enqueueWork(() -> {
-			Container c = Minecraft.getInstance().player.openContainer;
-			if (c != null && c instanceof SchematicTableContainer) {
-				((SchematicTableContainer) c).receiveSchematicInfo(schematic, progress);
-			}
-		});
-		
-	}
-	
-}

src/main/java/com/simibubi/create/networking/PacketSchematicUpload.java

@@ -18,6 +18,7 @@ public class PacketSchematicUpload {
 	public static final int FINISH = 2;
 
 	private int code;
+	private long size;
 	private String schematic;
 	private byte[] data;
 
@@ -26,8 +27,9 @@ public class PacketSchematicUpload {
 		this.schematic = schematic;
 	}
 
-	public static PacketSchematicUpload begin(String schematic) {
+	public static PacketSchematicUpload begin(String schematic, long size) {
 		PacketSchematicUpload pkt = new PacketSchematicUpload(BEGIN, schematic);
+		pkt.size = size;
 		return pkt;
 	}
 
@@ -45,6 +47,8 @@ public class PacketSchematicUpload {
 		code = buffer.readInt();
 		schematic = buffer.readString(256);
 
+		if (code == BEGIN)
+			size = buffer.readLong();
 		if (code == WRITE)
 			data = buffer.readByteArray();
 	}
@@ -53,6 +57,8 @@ public class PacketSchematicUpload {
 		buffer.writeInt(code);
 		buffer.writeString(schematic);
 
+		if (code == BEGIN)
+			buffer.writeLong(size);
 		if (code == WRITE)
 			buffer.writeByteArray(data);
 	}
@@ -62,7 +68,7 @@ public class PacketSchematicUpload {
 			ServerPlayerEntity player = context.get().getSender();
 			if (code == BEGIN) {
 				BlockPos pos = ((SchematicTableContainer) player.openContainer).getTileEntity().getPos();
-				Create.sSchematicLoader.handleNewUpload(player, schematic, new DimensionPos(player, pos));
+				Create.sSchematicLoader.handleNewUpload(player, schematic, size, new DimensionPos(player, pos));
 			}
 			if (code == WRITE) {
 				Create.sSchematicLoader.handleWriteRequest(player, schematic, data);

src/main/java/com/simibubi/create/networking/Packets.java

@@ -21,8 +21,6 @@ public class Packets {
 		channel.registerMessage(i++, PacketNbt.class, PacketNbt::toBytes, PacketNbt::new, PacketNbt::handle);
 		channel.registerMessage(i++, PacketConfigureSchematicannon.class, PacketConfigureSchematicannon::toBytes,
 				PacketConfigureSchematicannon::new, PacketConfigureSchematicannon::handle);
-		channel.registerMessage(i++, PacketSchematicTableContainer.class, PacketSchematicTableContainer::toBytes,
-				PacketSchematicTableContainer::new, PacketSchematicTableContainer::handle);
 		channel.registerMessage(i++, PacketSchematicUpload.class, PacketSchematicUpload::toBytes,
 				PacketSchematicUpload::new, PacketSchematicUpload::handle);
 		channel.registerMessage(i++, PacketSymmetryEffect.class, PacketSymmetryEffect::toBytes,

src/main/java/com/simibubi/create/schematic/BlueprintHandler.java

@@ -29,6 +29,7 @@ import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.text.StringTextComponent;
 import net.minecraft.world.gen.feature.template.PlacementSettings;
 import net.minecraft.world.gen.feature.template.Template;
+import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.client.event.InputEvent.KeyInputEvent;
 import net.minecraftforge.client.event.InputEvent.MouseInputEvent;
 import net.minecraftforge.client.event.RenderGameOverlayEvent;
@@ -38,7 +39,7 @@ import net.minecraftforge.fml.common.Mod.EventBusSubscriber;
 import net.minecraftforge.fml.common.Mod.EventBusSubscriber.Bus;
 import net.minecraftforge.fml.common.gameevent.TickEvent.ClientTickEvent;
 
-@EventBusSubscriber(bus = Bus.FORGE)
+@EventBusSubscriber(value = Dist.CLIENT, bus = Bus.FORGE)
 public class BlueprintHandler {
 
 	public static BlueprintHandler instance;
@@ -227,11 +228,15 @@ public class BlueprintHandler {
 		Packets.channel.sendToServer(new PacketNbt(item, slot));
 
 		if (deployed) {
+			Template schematic = ItemBlueprint.getSchematic(item);
+			
+			if (schematic.getSize().equals(BlockPos.ZERO))
+				return;
+			
 			SchematicWorld w = new SchematicWorld(new HashMap<>(), new Cuboid(), anchor);
 			PlacementSettings settings = cachedSettings.copy();
 			settings.setBoundingBox(null);
-			ItemBlueprint.getSchematic(item).addBlocksToWorld(w, anchor, settings);
-			
+			schematic.addBlocksToWorld(w, anchor, settings);
 			new SchematicHologram().startHologram(w);
 		}
 	}

src/main/java/com/simibubi/create/schematic/MaterialChecklist.java

@@ -0,0 +1,135 @@
+package com.simibubi.create.schematic;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.item.Items;
+import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.nbt.ListNBT;
+import net.minecraft.nbt.StringNBT;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraft.util.text.TextFormatting;
+import net.minecraft.util.text.TranslationTextComponent;
+
+public class MaterialChecklist {
+
+	public Map<Item, Integer> gathered;
+	public Map<Item, Integer> required;
+	public boolean blocksNotLoaded;
+
+	public MaterialChecklist() {
+		required = new HashMap<>();
+		gathered = new HashMap<>();
+	}
+	
+	public void warnBlockNotLoaded() {
+		blocksNotLoaded = true;
+	}
+	
+	public void require(Item item) {
+		if (required.containsKey(item))
+			required.put(item, required.get(item) + 1);
+		else 
+			required.put(item, 1);
+	}
+	
+	public void collect(ItemStack stack) {
+		Item item = stack.getItem();
+		if (required.containsKey(item))
+			if (gathered.containsKey(item))
+				gathered.put(item, gathered.get(item) + stack.getCount());
+			else 
+				gathered.put(item, stack.getCount());
+	}
+
+	public ItemStack createItem() {
+		ItemStack book = new ItemStack(Items.WRITTEN_BOOK);
+
+		CompoundNBT tag = book.getOrCreateTag();
+		ListNBT pages = new ListNBT();
+
+		int itemsWritten = 0;
+		StringBuilder string = new StringBuilder("{\"text\":\"");
+		
+		if (blocksNotLoaded) {
+			string.append("\n" + TextFormatting.RED + "* Disclaimer *\n\n");			
+			string.append("Material List may be inaccurate due to relevant chunks not being loaded.");			
+			string.append("\"}");
+			pages.add(new StringNBT(string.toString()));
+			string = new StringBuilder("{\"text\":\"");
+		}
+		
+		List<Item> keys = new ArrayList<>(required.keySet());
+		Collections.sort(keys, (item1, item2) -> {
+			String name1 = new TranslationTextComponent(((Item) item1).getTranslationKey()).getFormattedText().toLowerCase();
+			String name2 = new TranslationTextComponent(((Item) item2).getTranslationKey()).getFormattedText().toLowerCase();
+			return name1.compareTo(name2);
+		});
+		
+		List<Item> completed = new ArrayList<>();
+		for (Item item : keys) {
+			int amount = required.get(item);
+			if (gathered.containsKey(item))
+				amount -= gathered.get(item);
+			
+			if (amount <= 0) {
+				completed.add(item);
+				continue;
+			}
+			
+			if (itemsWritten == 6) {
+				itemsWritten = 0;
+				string.append("\"}");
+				pages.add(new StringNBT(string.toString()));
+				string = new StringBuilder("{\"text\":\"");
+			}
+			
+			itemsWritten++;
+			string.append(unfinishedEntry(new ItemStack(item), amount));
+		}
+		
+		for (Item item : completed) {
+			if (itemsWritten == 6) {
+				itemsWritten = 0;
+				string.append("\"}");
+				pages.add(new StringNBT(string.toString()));
+				string = new StringBuilder("{\"text\":\"");
+			}
+			
+			itemsWritten++;
+			string.append(gatheredEntry(new ItemStack(item), required.get(item)));
+		}
+		
+		string.append("\"}");
+		pages.add(new StringNBT(string.toString()));
+
+		tag.put("pages", pages);
+		tag.putString("author", "Schematicannon");
+		tag.putString("title", TextFormatting.BLUE + "Material Checklist");
+		book.setTag(tag);
+
+		return book;
+	}
+
+	private String gatheredEntry(ItemStack item, int amount) {
+		int stacks = amount / 64;
+		int remainder = amount % 64;
+		ITextComponent tc = new TranslationTextComponent(item.getTranslationKey());
+		return TextFormatting.DARK_GREEN + tc.getFormattedText()
+				+ " \\u2714\n x" + amount + TextFormatting.GRAY + " | " + stacks + "\\u25A4 +" + remainder + "\n";
+	}
+
+	private String unfinishedEntry(ItemStack item, int amount) {
+		int stacks = amount / 64;
+		int remainder = amount % 64;
+		ITextComponent tc = new TranslationTextComponent(item.getTranslationKey());
+		return TextFormatting.BLUE + tc.getFormattedText() + "\n x" + amount
+				+ TextFormatting.GRAY + " | " + stacks + "\\u25A4 +" + remainder + "\n";
+	}
+
+}