Resolve most of issues with pattern network

src/main/java/ru/dbotthepony/mc/otm/block/entity/BlockEntityMatterDecomposer.java

@@ -159,10 +159,10 @@ public class BlockEntityMatterDecomposer extends BlockEntityMatteryPoweredWorker
 
 	@Override
 	public void setRemoved() {
-		super.setRemoved();
-
 		if (level != null && !level.isClientSide && grid != null)
 			grid.untrack(this);
+
+		super.setRemoved();
 	}
 
 	@Override

src/main/java/ru/dbotthepony/mc/otm/block/entity/BlockEntityMatterPanel.java

@@ -10,17 +10,12 @@ import net.minecraft.network.chat.TranslatableComponent;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.inventory.AbstractContainerMenu;
-import net.minecraft.world.item.Item;
 import net.minecraft.world.level.Level;
-import net.minecraft.world.level.block.entity.BlockEntityType;
 import net.minecraft.world.level.block.state.BlockState;
 import net.minecraftforge.common.capabilities.Capability;
 import net.minecraftforge.common.util.LazyOptional;
 import ru.dbotthepony.mc.otm.Registry;
-import ru.dbotthepony.mc.otm.capability.IMatterGridCell;
+import ru.dbotthepony.mc.otm.capability.*;
-import ru.dbotthepony.mc.otm.capability.IMatterTaskProvider;
-import ru.dbotthepony.mc.otm.capability.MatterTask;
-import ru.dbotthepony.mc.otm.capability.MatteryCapability;
 import ru.dbotthepony.mc.otm.matter.MatterGrid;
 import ru.dbotthepony.mc.otm.menu.MatterPanelMenu;
 
@@ -82,6 +77,14 @@ public class BlockEntityMatterPanel extends BlockEntityMattery implements IMatte
 			scheduleDiscoverNeighbours(getBlockPos(), p_155231_);
 	}
 
+	@Override
+	public void setRemoved() {
+		if (level != null && !level.isClientSide && grid != null)
+			grid.untrack(this);
+
+		super.setRemoved();
+	}
+
 	@Nullable
 	@Override
 	public MatterGrid getMatterGrid() {
@@ -120,14 +123,26 @@ public class BlockEntityMatterPanel extends BlockEntityMattery implements IMatte
 
 	@Nullable
 	@Override
-	public MatterTask allocateTask(boolean simulate) {
+	public MatterTaskAllocation allocateTask(boolean simulate) {
-		for (var entry : tasks.entrySet()) {
+		if (grid == null)
-			if (entry.getValue().required() > 0) {
+			return null;
-				if (!simulate) {
-					tasks.put(entry.getKey(), entry.getValue().shrinkRequired(1));
-				}
 
-				return entry.getValue();
+		for (var entry : tasks.entrySet()) {
+			var task = entry.getValue();
+
+			if (task.required() > 0) {
+				var get_pattern = grid.getPattern(task.pattern());
+
+				if (get_pattern != null) {
+					if (!simulate) {
+						var newer = task.shrinkRequired(1);
+						tasks.put(entry.getKey(), newer);
+
+						grid.onMatterTaskUpdated(newer, task);
+					}
+
+					return new MatterTaskAllocation(task, get_pattern);
+				}
 			}
 		}
 
@@ -135,20 +150,29 @@ public class BlockEntityMatterPanel extends BlockEntityMattery implements IMatte
 	}
 
 	@Override
-	public void notifyTaskCompletion(MatterTask task) {
+	public boolean notifyTaskCompletion(MatterTask task) {
 		var get_task = tasks.get(task.id());
 
 		if (get_task == null) {
-			return;
+			return false;
 		}
 
+		var old_task = get_task;
 		get_task = get_task.shrinkInProgress(1);
 
-		if (get_task.required() == 0 && get_task.in_progress() == 0) {
+		if (get_task.required() <= 0 && get_task.in_progress() <= 0) {
 			tasks.remove(task.id());
+
+			if (grid != null)
+				grid.onMatterTaskCreated(task);
 		} else {
 			tasks.put(task.id(), get_task);
+
+			if (grid != null)
+				grid.onMatterTaskUpdated(get_task, old_task);
 		}
+
+		return true;
 	}
 
 	@Override
@@ -186,9 +210,13 @@ public class BlockEntityMatterPanel extends BlockEntityMattery implements IMatte
 		return tasks.get(id);
 	}
 
-	public MatterTask addTask(Item item, int how_much) {
+	public MatterTask addTask(PatternState state, int how_much) {
-		var task = new MatterTask(UUID.randomUUID(), item, 0, 0, how_much);
+		var task = new MatterTask(UUID.randomUUID(), state.id(), state.item(), 0, 0, how_much);
 		tasks.put(task.id(), task);
+
+		if (grid != null)
+			grid.onMatterTaskCreated(task);
+
 		return task;
 	}
 

src/main/java/ru/dbotthepony/mc/otm/block/entity/BlockEntityMatterReplicator.java

@@ -80,10 +80,23 @@ public class BlockEntityMatterReplicator extends BlockEntityMatteryPoweredWorker
 	}
 
 	@Override
-	public void notifyTasksChanged() {
+	public void onMatterTaskCreated(MatterTask task) {
 		is_idling = false;
 	}
 
+	@Override
+	public void onMatterTaskUpdated(MatterTask new_state, MatterTask old_state) {
+		is_idling = false;
+	}
+
+	@Override
+	public void setRemoved() {
+		if (level != null && !level.isClientSide && grid != null)
+			grid.untrack(this);
+
+		super.setRemoved();
+	}
+
 	private static final double TICKS_PER_MTU = 20_000d;
 	private static final BigDecimal TICKS_PER_MTU_BD = new BigDecimal(20_000);
 	private static final double MTU_PER_TICK = 1d / 20_000d;
@@ -103,12 +116,12 @@ public class BlockEntityMatterReplicator extends BlockEntityMatteryPoweredWorker
 		if (grid == null)
 			return null;
 
-		MatterTask task = grid.allocateTask(false);
+		MatterTaskAllocation allocation = grid.allocateTask(false);
 
-		if (task == null)
+		if (allocation == null)
 			return null;
 
-		ItemStack stack = task.stack(1);
+		ItemStack stack = allocation.task().stack(1);
 
 		// ????????
 		if (!MatterRegistry.hasMatterValue(stack))
@@ -116,7 +129,10 @@ public class BlockEntityMatterReplicator extends BlockEntityMatteryPoweredWorker
 
 		MachineJob job = new MachineJob(stack, MatterRegistry.getMatterValue(stack).doubleValue() * TICKS_PER_MTU);
 
-		job.data().put("task", task.serializeNBT());
+		job.data().put("task", allocation.task().serializeNBT());
+
+		if (allocation.pattern() != null)
+			job.data().put("pattern", allocation.pattern().serializeNBT());
 
 		return job;
 	}
@@ -125,7 +141,7 @@ public class BlockEntityMatterReplicator extends BlockEntityMatteryPoweredWorker
 
 	@Override
 	protected MachineJobStatus onWorkTick(WorkTickContext context) {
-		BigDecimal drain_per_tick = MatterRegistry.getMatterValue(context.job().stack().getItem()).multiply(MTU_PER_TICK_BD, MatteryCapability.ROUND_RULES).multiply(context.work_speed(), MatteryCapability.ROUND_RULES);
+		BigDecimal drain_per_tick = MTU_PER_TICK_BD.multiply(context.work_speed(), MatteryCapability.ROUND_RULES);
 
 		if (matter.extractMatterInner(drain_per_tick, true).compareTo(drain_per_tick) < 0) {
 			// в машине недостаточно материи

src/main/java/ru/dbotthepony/mc/otm/block/entity/BlockEntityMatterScanner.java

@@ -26,6 +26,7 @@ import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import java.math.BigDecimal;
 import java.util.Collection;
+import java.util.UUID;
 
 public class BlockEntityMatterScanner extends BlockEntityMatteryPoweredWorker implements IMatterGridCell {
 	private static final TranslatableComponent NAME = new TranslatableComponent("block.overdrive_that_matters.matter_scanner");
@@ -73,10 +74,28 @@ public class BlockEntityMatterScanner extends BlockEntityMatteryPoweredWorker im
 	}
 
 	@Override
-	public void notifyPatternsChanged() {
+	public void onPatternAdded(PatternState state) {
 		is_idling = false;
 	}
 
+	@Override
+	public void onPatternRemoved(PatternState state) {
+		is_idling = false;
+	}
+
+	@Override
+	public void onPatternUpdated(PatternState new_state, PatternState old_state) {
+		is_idling = false;
+	}
+
+	@Override
+	public void setRemoved() {
+		if (level != null && !level.isClientSide && grid != null)
+			grid.untrack(this);
+
+		super.setRemoved();
+	}
+
 	@Override
 	public void onNeighbourMatterCell(BlockPos pos, Level level, Direction direction, IMatterGridCell cell) {
 		is_idling = false;
@@ -125,29 +144,28 @@ public class BlockEntityMatterScanner extends BlockEntityMatteryPoweredWorker im
 			return new MachineJobStatus();
 
 
-		Collection<IPatternStorage.PatternState> get_state = grid.findPattern(stack.getItem());
+		Collection<PatternState> get_state = grid.findPatterns(stack.getItem());
-		IPatternStorage.PatternState find_state = null;
+		PatternState find_state = null;
 
-		for (IPatternStorage.PatternState state : get_state) {
+		for (PatternState state : get_state) {
-			if (state.item() == stack.getItem() && state.research_percent() < 1d) {
+			if (state.item() == stack.getItem()) {
-				find_state = state;
+				if (find_state == null && state.research_percent() < 1d) {
+					find_state = state;
+				} else if (find_state != null && find_state.research_percent() < state.research_percent()) {
+					find_state = state;
+				}
 			}
-			// как бы не так
-			// может быть это было сделано специально?
-			//else if (state.item() == stack.getItem() && state.research_percent() >= 1d) {
-			//	return null;
-			//}
 		}
 
-		IPatternStorage.PatternState new_state;
+		PatternState new_state;
 
 		if (find_state != null) {
-			new_state = new IPatternStorage.PatternState(stack.getItem(), find_state.research_percent() + 0.2d);
+			new_state = new PatternState(find_state.id(), stack.getItem(), find_state.research_percent() + 0.2d);
 		} else {
-			new_state = new IPatternStorage.PatternState(stack.getItem(), 0.2d);
+			new_state = new PatternState(UUID.randomUUID(), stack.getItem(), 0.2d);
 		}
 
-		if (grid.insertPattern(new_state, false, false)) {
+		if (grid.insertPattern(new_state, false, false).status() != PatternInsertStatus.Status.FAIL) {
 			return new MachineJobStatus();
 		}
 
@@ -165,10 +183,10 @@ public class BlockEntityMatterScanner extends BlockEntityMatteryPoweredWorker im
 		if (stack.isEmpty() || !MatterRegistry.hasMatterValue(stack))
 			return null;
 
-		Collection<IPatternStorage.PatternState> get_state = grid.findPattern(stack.getItem());
+		Collection<PatternState> get_state = grid.findPatterns(stack.getItem());
-		IPatternStorage.PatternState find_state = null;
+		PatternState find_state = null;
 
-		for (IPatternStorage.PatternState state : get_state) {
+		for (PatternState state : get_state) {
 			if (state.item() == stack.getItem() && state.research_percent() < 1d) {
 				find_state = state;
 			} else if (state.item() == stack.getItem() && state.research_percent() >= 1d) {
@@ -176,15 +194,15 @@ public class BlockEntityMatterScanner extends BlockEntityMatteryPoweredWorker im
 			}
 		}
 
-		IPatternStorage.PatternState new_state;
+		PatternState new_state;
 
 		if (find_state != null) {
-			new_state = new IPatternStorage.PatternState(stack.getItem(), find_state.research_percent() + 0.2d);
+			new_state = new PatternState(find_state.id(), stack.getItem(), find_state.research_percent() + 0.2d);
 		} else {
-			new_state = new IPatternStorage.PatternState(stack.getItem(), 0.2d);
+			new_state = new PatternState(UUID.randomUUID(), stack.getItem(), 0.2d);
 		}
 
-		if (grid.insertPattern(new_state, false, true)) {
+		if (grid.insertPattern(new_state, false, true).status() != PatternInsertStatus.Status.FAIL) {
 			ItemStack copy = stack.copy();
 			copy.setCount(1);
 			stack.shrink(1);

src/main/java/ru/dbotthepony/mc/otm/block/entity/BlockEntityPatternStorage.java

@@ -32,7 +32,7 @@ public class BlockEntityPatternStorage extends BlockEntityMattery implements IMa
 		super(Registry.BlockEntities.PATTERN_STORAGE, p_155229_, p_155230_);
 	}
 
-	public final MatteryContainer patterns = new MatteryContainer(this::setChangedPatterns, 3 * 3) {
+	public final MatteryContainer patterns = new MatteryContainer(this::setChanged, 3 * 3) {
 		@Override
 		public int getMaxStackSize() {
 			return 1;
@@ -43,13 +43,6 @@ public class BlockEntityPatternStorage extends BlockEntityMattery implements IMa
 		((slot, stack) -> stack.getCapability(MatteryCapability.PATTERN).isPresent())
 	));
 
-	private void setChangedPatterns() {
-		setChanged();
-
-		if (grid != null)
-			grid.notifyPatternsChanged();
-	}
-
 	private MatterGrid grid;
 
 	@Override
@@ -143,6 +136,7 @@ public class BlockEntityPatternStorage extends BlockEntityMattery implements IMa
 		return new PatternStorageMenu(containerID, inventory, this);
 	}
 
+	@Nonnull
 	@Override
 	public Collection<PatternState> getStoredPatterns() {
 		ArrayList<PatternState> list = new ArrayList<>();
@@ -165,17 +159,35 @@ public class BlockEntityPatternStorage extends BlockEntityMattery implements IMa
 	}
 
 	@Override
-	public boolean insertPattern(PatternState pattern, boolean only_update, boolean simulate) {
+	public void setRemoved() {
+		if (level != null && !level.isClientSide && grid != null)
+			grid.untrack(this);
+
+		super.setRemoved();
+	}
+
+	@Override
+	public PatternInsertStatus insertPattern(PatternState pattern, boolean only_update, boolean simulate) {
 		for (IPatternStorage storage : patterns.capabilityIterator(MatteryCapability.PATTERN)) {
-			if (storage.insertPattern(pattern, only_update, simulate)) {
+			var status = storage.insertPattern(pattern, only_update, simulate);
+
+			if (status.status() != PatternInsertStatus.Status.FAIL) {
 				if (!simulate) {
-					setChangedPatterns();
+					setChanged();
+
+					if (grid != null) {
+						if (status.status() == PatternInsertStatus.Status.INSERTED) {
+							grid.onPatternAdded(status.new_state());
+						} else {
+							grid.onPatternUpdated(status.new_state(), status.old_state());
+						}
+					}
 				}
 
-				return true;
+				return status;
 			}
 		}
 
-		return false;
+		return new PatternInsertStatus();
 	}
 }

src/main/java/ru/dbotthepony/mc/otm/capability/IMatterGridCell.java

@@ -10,7 +10,7 @@ import ru.dbotthepony.mc.otm.matter.MatterGrid;
 
 import javax.annotation.Nullable;
 
-public interface IMatterGridCell {
+public interface IMatterGridCell extends IMatterGridListener {
 	@Nullable
 	MatterGrid getMatterGrid();
 
@@ -33,14 +33,6 @@ public interface IMatterGridCell {
 
 	void setMatterGrid(MatterGrid grid);
 
-	default void notifyPatternsChanged() {
-
-	}
-
-	default void notifyTasksChanged() {
-
-	}
-
 	default void scheduleDiscoverNeighbours(BlockPos pos, Level level) {
 		MatterGrid.scheduleDiscoverNeighbours(this, pos, level);
 	}

src/main/java/ru/dbotthepony/mc/otm/capability/IMatterGridListener.java

@@ -0,0 +1,12 @@
+package ru.dbotthepony.mc.otm.capability;
+
+public interface IMatterGridListener {
+	default void onPatternAdded(PatternState state) { }
+	default void onPatternRemoved(PatternState state) { }
+	default void onPatternUpdated(PatternState new_state, PatternState old_state) { }
+
+	default void onMatterTaskCreated(MatterTask task) { }
+	default void onMatterTaskUpdated(MatterTask new_state, MatterTask old_state) { }
+	default void onMatterTaskFinished(MatterTask state) { }
+	default void onMatterTaskRemoved(MatterTask state) { }
+}

src/main/java/ru/dbotthepony/mc/otm/capability/IMatterTaskProvider.java

@@ -25,18 +25,19 @@ public interface IMatterTaskProvider {
 	 *
 	 * If required == 0, it should not be returned by this method
 	 * @param simulate whenever to change internal state
-	 * @return MatterTask that should be performed, or null of no tasks available
+	 * @return MatterTaskAllocation(task, pattern) that should be performed, or null if no work is available
 	 */
 	@Nullable
-	MatterTask allocateTask(boolean simulate);
+	MatterTaskAllocation allocateTask(boolean simulate);
 
 	/**
 	 * Notify about task completion. If this provider indeed contain this task, it should
 	 * shrink in_progress by 1
 	 * If in_progress == 0 and required == 0, it should discard the task
 	 * @param task task being completed. this method should ignore tasks that are not owned by it.
+	 * @return whenever task indeed belong to this provider and internal state was updated
 	 */
-	void notifyTaskCompletion(MatterTask task);
+	boolean notifyTaskCompletion(MatterTask task);
 
 	/**
 	 * @param id uuid of task

src/main/java/ru/dbotthepony/mc/otm/capability/IPatternStorage.java

@@ -1,45 +1,15 @@
 package ru.dbotthepony.mc.otm.capability;
 
-import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.world.item.Item;
-import net.minecraftforge.registries.ForgeRegistry;
-import net.minecraftforge.registries.RegistryManager;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import java.util.Collection;
+import java.util.UUID;
 import java.util.function.Predicate;
 import java.util.stream.Collectors;
 
 public interface IPatternStorage {
-	record PatternState(Item item, double research_percent) {
-		public PatternState(@Nonnull Item item, double research_percent) {
-			this.item = item;
-			this.research_percent = Math.max(0, Math.min(1, research_percent));
-		}
-
-		public boolean equals(PatternState state) {
-			return state.item == this.item && state.research_percent == this.research_percent;
-		}
-
-		public void write(FriendlyByteBuf buffer) {
-			buffer.writeInt(((ForgeRegistry<Item>) RegistryManager.ACTIVE.getRegistry(Item.class)).getID(item));
-			buffer.writeDouble(research_percent);
-		}
-
-		@Nullable
-		public static PatternState read(FriendlyByteBuf buffer) {
-			int item = buffer.readInt();
-			double percent = buffer.readDouble();
-
-			Item get_item = ((ForgeRegistry<Item>) RegistryManager.ACTIVE.getRegistry(Item.class)).getValue(item);
-
-			if (get_item == null)
-				return null;
-
-			return new PatternState(get_item, percent);
-		}
-	}
 
 	/**
 	 * @return unmodifiable collection of stored patterns
@@ -48,41 +18,72 @@ public interface IPatternStorage {
 	Collection<PatternState> getStoredPatterns();
 
 	@Nonnull
-	default Collection<PatternState> findPattern(Item item) {
+	default Collection<PatternState> findPatterns(Item item) {
-		return findPattern((item2) -> item.equals(item2.item));
+		return findPatterns((item2) -> item.equals(item2.item()));
 	}
 
 	@Nonnull
-	default Collection<PatternState> findPattern(Predicate<PatternState> predicate) {
+	default Collection<PatternState> findPatterns(Predicate<PatternState> predicate) {
 		return getStoredPatterns().stream().filter(predicate).collect(Collectors.toList());
 	}
 
-	default boolean hasExactPattern(PatternState state) {
+	@Nullable
-		for (PatternState state1 : getStoredPatterns()) {
+	default PatternState findPattern(Item item) {
-			if (state1.equals(state)) {
+		return findPattern((item2) -> item.equals(item2.item()));
-				return true;
+	}
+
+	@Nullable
+	default PatternState findPattern(Predicate<PatternState> predicate) {
+		for (var pattern : getStoredPatterns()) {
+			if (predicate.test(pattern)) {
+				return pattern;
 			}
 		}
 
-		return false;
+		return null;
+	}
+
+	@Nullable
+	default PatternState getPattern(@Nullable UUID id) {
+		if (id == null)
+			return null;
+
+		for (var pattern : getStoredPatterns()) {
+			if (pattern.id().equals(id)) {
+				return pattern;
+			}
+		}
+
+		return null;
+	}
+
+	default boolean hasPattern(@Nonnull PatternState state) {
+		return getPattern(state.id()) != null;
+	}
+
+	default boolean hasPattern(@Nullable UUID id) {
+		return getPattern(id) != null;
 	}
 
 	int getCapacity();
 	int getStored();
 
 	/**
+	 * Prefer way to call it is to first call only_update = true
+	 * and if it fail, try only_update = false
+	 *
 	 * @param pattern pattern to be inserted or update value from
-	 * @param only_update do not insert new pattern if no existing patterns match the pattern
+	 * @param only_update do not insert new pattern if this pattern's UUID is not matched
 	 * @param simulate whenever to affect state
-	 * @return whenever operation was successful
+	 * @return record of status of the operation (at status() FAIL, UPDATED, INSERTED) as well as new_state and old_state
 	 */
-	boolean insertPattern(PatternState pattern, boolean only_update, boolean simulate);
+	PatternInsertStatus insertPattern(PatternState pattern, boolean only_update, boolean simulate);
 
-	default boolean insertPattern(PatternState pattern, boolean simulate) {
+	default PatternInsertStatus insertPattern(PatternState pattern, boolean simulate) {
 		return insertPattern(pattern, false, simulate);
 	}
 
-	default boolean updatePattern(PatternState pattern, boolean simulate) {
+	default PatternInsertStatus updatePattern(PatternState pattern, boolean simulate) {
 		return insertPattern(pattern, true, simulate);
 	}
 }

src/main/java/ru/dbotthepony/mc/otm/capability/MatterTask.java

@@ -2,19 +2,23 @@ package ru.dbotthepony.mc.otm.capability;
 
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.Tag;
+import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.item.Item;
 import net.minecraft.world.item.ItemStack;
 import net.minecraftforge.common.util.INBTSerializable;
+import net.minecraftforge.registries.ForgeRegistry;
 import net.minecraftforge.registries.RegistryManager;
 
+import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import java.util.Objects;
 import java.util.UUID;
 
-public record MatterTask(UUID id, Item item, int in_progress, int finished, int required) {
+public record MatterTask(@Nonnull UUID id, @Nullable UUID pattern, @Nonnull Item item, int in_progress, int finished, int required) {
-	public MatterTask(UUID id, Item item, int in_progress, int finished, int required) {
+	public MatterTask(@Nonnull UUID id, @Nullable UUID pattern, @Nonnull Item item, int in_progress, int finished, int required) {
 		this.id = id;
+		this.pattern = pattern;
 		this.item = item;
 		this.in_progress = Math.max(0, in_progress);
 		this.finished = Math.max(0, finished);
@@ -34,11 +38,11 @@ public record MatterTask(UUID id, Item item, int in_progress, int finished, int
 	}
 
 	public MatterTask shrinkRequired(int amount) {
-		return new MatterTask(id, item, in_progress + amount, finished, required - amount);
+		return new MatterTask(id, pattern, item, in_progress + amount, finished, required - amount);
 	}
 
 	public MatterTask shrinkInProgress(int amount) {
-		return new MatterTask(id, item, in_progress - amount, finished + amount, required);
+		return new MatterTask(id, pattern, item, in_progress - amount, finished + amount, required);
 	}
 
 	public CompoundTag serializeNBT() {
@@ -46,6 +50,12 @@ public record MatterTask(UUID id, Item item, int in_progress, int finished, int
 
 		tag.putLong("id_l", id.getLeastSignificantBits());
 		tag.putLong("id_u", id.getMostSignificantBits());
+
+		if (pattern != null) {
+			tag.putLong("pattern_l", pattern.getLeastSignificantBits());
+			tag.putLong("pattern_u", pattern.getMostSignificantBits());
+		}
+
 		tag.putString("item", Objects.requireNonNull(item.getRegistryName()).toString());
 		tag.putInt("in_progress", in_progress);
 		tag.putInt("finished", finished);
@@ -62,16 +72,42 @@ public record MatterTask(UUID id, Item item, int in_progress, int finished, int
 		if (nbt instanceof CompoundTag tag) {
 			Item get_item = RegistryManager.ACTIVE.getRegistry(Item.class).getValue(new ResourceLocation(tag.getString("item")));
 
-			if (get_item != null)
+			if (get_item != null) {
+				long a = tag.getLong("pattern_u");
+				long b = tag.getLong("pattern_l");
+
+				UUID pattern = a != 0 && b != 0 ? new UUID(a, b) : null;
+
 				return new MatterTask(
 					new UUID(tag.getLong("id_u"), tag.getLong("id_l")),
+					pattern,
 					get_item,
 					tag.getInt("in_progress"),
 					tag.getInt("finished"),
 					tag.getInt("required")
 				);
+			}
 		}
 
 		return null;
 	}
+
+	public void write(FriendlyByteBuf buffer) {
+		buffer.writeLong(id.getMostSignificantBits());
+		buffer.writeLong(id.getLeastSignificantBits());
+
+		if (pattern != null) {
+			buffer.writeBoolean(true);
+
+			buffer.writeLong(pattern.getMostSignificantBits());
+			buffer.writeLong(pattern.getLeastSignificantBits());
+		} else {
+			buffer.writeBoolean(false);
+		}
+
+		buffer.writeInt(((ForgeRegistry<Item>) RegistryManager.ACTIVE.getRegistry(Item.class)).getID(item));
+		buffer.writeInt(in_progress);
+		buffer.writeInt(finished);
+		buffer.writeInt(required);
+	}
 }

src/main/java/ru/dbotthepony/mc/otm/capability/MatterTaskAllocation.java

@@ -0,0 +1,8 @@
+package ru.dbotthepony.mc.otm.capability;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+public record MatterTaskAllocation(@Nonnull MatterTask task, @Nullable PatternState pattern) {
+
+}

src/main/java/ru/dbotthepony/mc/otm/capability/PatternInsertStatus.java

@@ -0,0 +1,36 @@
+package ru.dbotthepony.mc.otm.capability;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+/**
+ * status: FAIL, UPDATED or INSERTED
+ * new_state: null if FAIL, the pattern privided for insertion otherwise (or modified copy of it)
+ * old_state: on UPDATED, previous state, or null if not UPDATED
+ */
+public record PatternInsertStatus(@Nonnull Status status, @Nullable PatternState new_state, @Nullable PatternState old_state) {
+	public enum Status {
+		FAIL,
+		UPDATED,
+		INSERTED,
+	}
+
+	public PatternInsertStatus(@Nonnull Status status, @Nullable PatternState new_state, @Nullable PatternState old_state) {
+		this.status = status;
+		this.new_state = new_state;
+		this.old_state = old_state;
+	}
+
+	public PatternInsertStatus() {
+		this(Status.FAIL, null, null);
+	}
+
+	public PatternInsertStatus(@Nonnull PatternState new_state) {
+		this(Status.INSERTED, new_state, null);
+	}
+
+	public PatternInsertStatus(@Nonnull PatternState new_state, @Nonnull PatternState old_state) {
+		this(Status.UPDATED, new_state, old_state);
+	}
+}
+

src/main/java/ru/dbotthepony/mc/otm/capability/PatternState.java

@@ -0,0 +1,83 @@
+package ru.dbotthepony.mc.otm.capability;
+
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.Tag;
+import net.minecraft.network.FriendlyByteBuf;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.item.Item;
+import net.minecraftforge.registries.ForgeRegistry;
+import net.minecraftforge.registries.RegistryManager;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import java.util.Objects;
+import java.util.UUID;
+
+public record PatternState(@Nonnull UUID id, @Nonnull Item item, double research_percent) {
+	public PatternState(@Nonnull UUID id, @Nonnull Item item, double research_percent) {
+		this.id = id;
+		this.item = item;
+		this.research_percent = Math.max(0, Math.min(1, research_percent));
+	}
+
+	public boolean equals(PatternState state) {
+		return state.id.equals(id);
+	}
+
+	public boolean equalsHard(PatternState state) {
+		return state.id.equals(id) && item == state.item && research_percent == state.research_percent;
+	}
+
+	public CompoundTag serializeNBT() {
+		var tag = new CompoundTag();
+
+		tag.putLong("id_m", id.getMostSignificantBits());
+		tag.putLong("id_l", id.getLeastSignificantBits());
+		tag.putString("item", Objects.requireNonNull(item.getRegistryName()).toString());
+		tag.putDouble("research_percent", research_percent);
+
+		return tag;
+	}
+
+	@Nullable
+	public static PatternState deserializeNBT(Tag nbt) {
+		if (nbt instanceof CompoundTag tag) {
+			var item = RegistryManager.ACTIVE.getRegistry(Item.class).getValue(new ResourceLocation(tag.getString("item")));
+
+			if (item == null)
+				return null;
+
+			var id = new UUID(tag.getLong("id_m"), tag.getLong("id_l"));
+			var research_percent = tag.getDouble("research_percent");
+
+			return new PatternState(id, item, research_percent);
+		}
+
+		return null;
+	}
+
+	public void write(FriendlyByteBuf buffer) {
+		buffer.writeLong(id.getMostSignificantBits());
+		buffer.writeLong(id.getLeastSignificantBits());
+
+		buffer.writeInt(((ForgeRegistry<Item>) RegistryManager.ACTIVE.getRegistry(Item.class)).getID(item));
+
+		buffer.writeDouble(research_percent);
+	}
+
+	@Nullable
+	public static PatternState read(FriendlyByteBuf buffer) {
+		long ida = buffer.readLong();
+		long idb = buffer.readLong();
+
+		int item = buffer.readInt();
+		double percent = buffer.readDouble();
+
+		Item get_item = ((ForgeRegistry<Item>) RegistryManager.ACTIVE.getRegistry(Item.class)).getValue(item);
+
+		if (get_item == null)
+			return null;
+
+		return new PatternState(new UUID(ida, idb), get_item, percent);
+	}
+}

src/main/java/ru/dbotthepony/mc/otm/item/ItemPatternStorage.java

@@ -15,10 +15,11 @@ import net.minecraft.world.level.Level;
 import net.minecraftforge.common.capabilities.Capability;
 import net.minecraftforge.common.capabilities.ICapabilityProvider;
 import net.minecraftforge.common.util.LazyOptional;
-import net.minecraftforge.registries.ForgeRegistry;
 import net.minecraftforge.registries.RegistryManager;
 import ru.dbotthepony.mc.otm.capability.IPatternStorage;
 import ru.dbotthepony.mc.otm.capability.MatteryCapability;
+import ru.dbotthepony.mc.otm.capability.PatternInsertStatus;
+import ru.dbotthepony.mc.otm.capability.PatternState;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
@@ -43,7 +44,7 @@ public class ItemPatternStorage extends Item {
 		p_41421_.getCapability(MatteryCapability.PATTERN).ifPresent(capability -> {
 			list.add(new TranslatableComponent("otm.item.pattern.stored", capability.getStored(), capability.getCapacity()).withStyle(ChatFormatting.GRAY));
 
-			for (IPatternStorage.PatternState state : capability.getStoredPatterns()) {
+			for (PatternState state : capability.getStoredPatterns()) {
 				list.add(new TranslatableComponent("otm.item.pattern.line", state.item().getName(new ItemStack(state.item(), 1)), String.format("%.2f", state.research_percent() * 100d)).withStyle(ChatFormatting.AQUA));
 			}
 		});
@@ -80,6 +81,7 @@ public class ItemPatternStorage extends Item {
 			return LazyOptional.empty();
 		}
 
+		@Nonnull
 		@Override
 		public Collection<PatternState> getStoredPatterns() {
 			CompoundTag tag = stack.getOrCreateTag();
@@ -91,21 +93,17 @@ public class ItemPatternStorage extends Item {
 			ArrayList<PatternState> state_list = new ArrayList<>();
 
 			for (int i = 0; i < list.size(); i++) {
-				CompoundTag get_tag = list.getCompound(i);
+				var state = PatternState.deserializeNBT(list.getCompound(i));
 
-				if (get_tag.get("id") instanceof StringTag id && get_tag.get("progress") instanceof DoubleTag progress) {
+				if (state != null)
-					Item get_item = RegistryManager.ACTIVE.getRegistry(Item.class).getValue(new ResourceLocation(id.getAsString()));
+					state_list.add(state);
-
-					if (get_item != null)
-						state_list.add(new PatternState(get_item, progress.getAsDouble()));
-				}
 			}
 
 			return ImmutableList.copyOf(state_list);
 		}
 
 		@Override
-		public boolean insertPattern(PatternState pattern, boolean only_update, boolean simulate) {
+		public PatternInsertStatus insertPattern(PatternState pattern, boolean only_update, boolean simulate) {
 			CompoundTag tag = stack.getOrCreateTag();
 
 			ListTag list;
@@ -114,10 +112,14 @@ public class ItemPatternStorage extends Item {
 				list = list1;
 			} else {
 				if (only_update)
-					return false;
+					return new PatternInsertStatus();
 
-				if (simulate)
+				if (simulate) {
-					return capacity > 0;
+					if (capacity > 0)
+						return new PatternInsertStatus(pattern);
+					else
+						return new PatternInsertStatus();
+				}
 
 				list = new ListTag();
 				tag.put("otm_patterns", list);
@@ -128,15 +130,15 @@ public class ItemPatternStorage extends Item {
 			int invalid_entries = 0;
 
 			for (int i = 0; i < list.size(); i++) {
-				CompoundTag get_tag = list.getCompound(i);
+				var state = PatternState.deserializeNBT(list.getCompound(i));
 
-				if (get_tag.get("id") instanceof StringTag id) {
+				if (state != null) {
-					if (compare_with.equals(id.getAsString())) {
+					if (state.equals(pattern)) {
 						if (!simulate) {
-							get_tag.putDouble("progress", pattern.research_percent());
+							list.set(i, pattern.serializeNBT());
 						}
 
-						return true;
+						return new PatternInsertStatus(pattern, state);
 					}
 				} else {
 					invalid_entries++;
@@ -144,32 +146,26 @@ public class ItemPatternStorage extends Item {
 			}
 
 			if (only_update || capacity <= list.size() - invalid_entries)
-				return false;
+				return new PatternInsertStatus();
 
 			if (invalid_entries > 0) {
 				if (simulate)
-					return true;
+					return new PatternInsertStatus(pattern);
 
 				for (int i = 0; i < list.size(); i++) {
-					CompoundTag get_tag = list.getCompound(i);
+					var state = PatternState.deserializeNBT(list.getCompound(i));
 
-					if (!(get_tag.get("id") instanceof StringTag)) {
+					if (state == null) {
-						get_tag.putString("id", compare_with);
+						list.set(i, pattern.serializeNBT());
-						get_tag.putDouble("progress", pattern.research_percent());
+						return new PatternInsertStatus(pattern);
-						return true;
 					}
 				}
 			}
 
-			if (simulate)
+			if (!simulate)
-				return true;
+				list.add(pattern.serializeNBT());
 
-			CompoundTag get_tag = new CompoundTag();
+			return new PatternInsertStatus(pattern);
-			get_tag.putString("id", compare_with);
-			get_tag.putDouble("progress", pattern.research_percent());
-			list.add(get_tag);
-
-			return true;
 		}
 	}
 }

src/main/java/ru/dbotthepony/mc/otm/matter/MatterGrid.java

@@ -12,14 +12,12 @@ import ru.dbotthepony.mc.otm.capability.*;
 
 import javax.annotation.Nullable;
 import java.math.BigDecimal;
-import java.util.ArrayList;
+import java.util.*;
-import java.util.Collection;
+import java.util.function.Consumer;
-import java.util.HashSet;
-import java.util.Set;
 import java.util.function.Predicate;
 import java.util.function.Supplier;
 
-public class MatterGrid {
+public class MatterGrid implements IMatterGridListener {
 	public static final Set<MatterGrid> NETWORKS = new HashSet<>();
 
 	private final Set<IMatterGridCell> cells = new HashSet<>();
@@ -123,6 +121,8 @@ public class MatterGrid {
 		if (howMuch.compareTo(BigDecimal.ZERO) <= 0)
 			return BigDecimal.ZERO;
 
+		validate();
+
 		BigDecimal extracted = BigDecimal.ZERO;
 
 		for (IMatterGridCell cell : cells) {
@@ -149,6 +149,8 @@ public class MatterGrid {
 		if (howMuch.compareTo(BigDecimal.ZERO) <= 0)
 			return BigDecimal.ZERO;
 
+		validate();
+
 		BigDecimal received = BigDecimal.ZERO;
 
 		for (IMatterGridCell cell : cells) {
@@ -175,6 +177,8 @@ public class MatterGrid {
 		if (howMuch.compareTo(BigDecimal.ZERO) <= 0)
 			return BigDecimal.ZERO;
 
+		validate();
+
 		BigDecimal received = BigDecimal.ZERO;
 
 		for (IMatterGridCell cell : cells) {
@@ -197,35 +201,43 @@ public class MatterGrid {
 		return received;
 	}
 
-	public boolean insertPattern(IPatternStorage.PatternState state, boolean only_update, boolean simulate) {
+	public PatternInsertStatus insertPattern(PatternState state, boolean only_update, boolean simulate) {
+		validate();
+
 		for (IMatterGridCell cell : cells) {
 			IPatternStorage storage = cell.getPatternStorage();
 
 			if (storage != null) {
-				if (storage.insertPattern(state, true, simulate)) {
+				var status = storage.insertPattern(state, true, simulate);
-					return true;
+
+				if (status.status() != PatternInsertStatus.Status.FAIL) {
+					return status;
 				}
 			}
 		}
 
 		if (only_update)
-			return false;
+			return new PatternInsertStatus();
 
 		for (IMatterGridCell cell : cells) {
 			IPatternStorage storage = cell.getPatternStorage();
 
 			if (storage != null) {
-				if (storage.insertPattern(state, false, simulate)) {
+				var status = storage.insertPattern(state, false, simulate);
-					return true;
+
+				if (status.status() != PatternInsertStatus.Status.FAIL) {
+					return status;
 				}
 			}
 		}
 
-		return false;
+		return new PatternInsertStatus();
 	}
 
-	public Collection<IPatternStorage.PatternState> getStoredPatterns() {
+	public Collection<PatternState> getStoredPatterns() {
-		ArrayList<IPatternStorage.PatternState> list = new ArrayList<>();
+		validate();
+
+		ArrayList<PatternState> list = new ArrayList<>();
 
 		for (IMatterGridCell cell : cells) {
 			IPatternStorage storage = cell.getPatternStorage();
@@ -238,28 +250,20 @@ public class MatterGrid {
 		return ImmutableList.copyOf(list);
 	}
 
-	public Collection<IPatternStorage.PatternState> findPattern(Item item) {
+	public Collection<PatternState> findPatterns(Item item) {
-		ArrayList<IPatternStorage.PatternState> list = new ArrayList<>();
+		return findPatterns((patternState -> item == patternState.item()));
-
-		for (IMatterGridCell cell : cells) {
-			IPatternStorage storage = cell.getPatternStorage();
-
-			if (storage != null) {
-				list.addAll(storage.findPattern(item));
-			}
-		}
-
-		return ImmutableList.copyOf(list);
 	}
 
-	public Collection<IPatternStorage.PatternState> findPattern(Predicate<IPatternStorage.PatternState> item) {
+	public Collection<PatternState> findPatterns(Predicate<PatternState> item) {
-		ArrayList<IPatternStorage.PatternState> list = new ArrayList<>();
+		validate();
+
+		ArrayList<PatternState> list = new ArrayList<>();
 
 		for (IMatterGridCell cell : cells) {
 			IPatternStorage storage = cell.getPatternStorage();
 
 			if (storage != null) {
-				list.addAll(storage.findPattern(item));
+				list.addAll(storage.findPatterns(item));
 			}
 		}
 
@@ -267,13 +271,22 @@ public class MatterGrid {
 	}
 
 	@Nullable
-	public IPatternStorage findExactPatternStorage(IPatternStorage.PatternState state) {
+	public PatternState getPattern(PatternState state) {
+		return getPattern(state.id());
+	}
+
+	@Nullable
+	public PatternState getPattern(UUID id) {
+		validate();
+
 		for (IMatterGridCell cell : cells) {
 			IPatternStorage storage = cell.getPatternStorage();
 
 			if (storage != null) {
-				if (storage.hasExactPattern(state)) {
+				var get = storage.getPattern(id);
-					return storage;
+
+				if (get != null) {
+					return get;
 				}
 			}
 		}
@@ -281,27 +294,19 @@ public class MatterGrid {
 		return null;
 	}
 
-	public boolean hasPatternState(IPatternStorage.PatternState state) {
+	public boolean hasPattern(UUID id) {
-		for (IMatterGridCell cell : cells) {
+		return getPattern(id) != null;
-			IPatternStorage storage = cell.getPatternStorage();
-
-			if (storage != null) {
-				if (storage.hasExactPattern(state)) {
-					return true;
-				}
-			}
-		}
-
-		return false;
 	}
 
 	@Nullable
-	public MatterTask allocateTask(boolean simulate) {
+	public MatterTaskAllocation allocateTask(boolean simulate) {
+		validate();
+
 		for (IMatterGridCell cell : cells) {
 			IMatterTaskProvider tasks = cell.getTaskProvider();
 
 			if (tasks != null) {
-				MatterTask allocated = tasks.allocateTask(simulate);
+				MatterTaskAllocation allocated = tasks.allocateTask(simulate);
 
 				if (allocated != null) {
 					return allocated;
@@ -313,21 +318,20 @@ public class MatterGrid {
 	}
 
 	@Nullable
-	public MatterTask notifyTaskCompletion(MatterTask task) {
+	public boolean notifyTaskCompletion(MatterTask task) {
+		validate();
+
 		for (IMatterGridCell cell : cells) {
 			IMatterTaskProvider tasks = cell.getTaskProvider();
 
 			if (tasks != null) {
-				tasks.notifyTaskCompletion(task);
+				if (tasks.notifyTaskCompletion(task)) {
+					return true;
+				}
 			}
 		}
 
-		return null;
+		return false;
-	}
-
-	public void notifyPatternsChanged() {
-		for (IMatterGridCell cell : cells)
-			cell.notifyPatternsChanged();
 	}
 
 	public void track(IMatterGridCell entity) {
@@ -337,7 +341,21 @@ public class MatterGrid {
 		cells.add(entity);
 		entity.setMatterGrid(this);
 
-		// OverdriveThatMatters.LOGGER.debug("Tracking {} in {}. Tracking {} in total", entity, this, entities.size());
+		var tasks = entity.getTaskProvider();
+
+		if (tasks != null) {
+			for (var task : tasks.getAllTasks()) {
+				onMatterTaskCreated(task);
+			}
+		}
+
+		var patterns = entity.getPatternStorage();
+
+		if (patterns != null) {
+			for (var pattern : patterns.getStoredPatterns()) {
+				onPatternAdded(pattern);
+			}
+		}
 	}
 
 	public void untrack(IMatterGridCell entity) {
@@ -347,10 +365,24 @@ public class MatterGrid {
 		cells.remove(entity);
 		entity.setMatterGrid(null);
 
+		var tasks = entity.getTaskProvider();
+
+		if (tasks != null) {
+			for (var task : tasks.getAllTasks()) {
+				onMatterTaskRemoved(task);
+			}
+		}
+
+		var patterns = entity.getPatternStorage();
+
+		if (patterns != null) {
+			for (var pattern : patterns.getStoredPatterns()) {
+				onPatternRemoved(pattern);
+			}
+		}
+
 		if (cells.size() == 0)
 			NETWORKS.remove(this);
-
-		// OverdriveThatMatters.LOGGER.debug("Untracking {} in {}. Tracking {} in total", entity, this, entities.size());
 	}
 
 	public int networkSize() {
@@ -400,4 +432,46 @@ public class MatterGrid {
 			NETWORKS.remove(this);
 		}
 	}
+
+	@Override
+	public void onPatternAdded(PatternState state) {
+		// validate();
+		cells.forEach(cell -> cell.onPatternAdded(state));
+	}
+
+	@Override
+	public void onPatternRemoved(PatternState state) {
+		// validate();
+		cells.forEach(cell -> cell.onPatternRemoved(state));
+	}
+
+	@Override
+	public void onPatternUpdated(PatternState new_state, PatternState old_state) {
+		// validate();
+		cells.forEach(cell -> cell.onPatternUpdated(new_state, old_state));
+	}
+
+	@Override
+	public void onMatterTaskCreated(MatterTask task) {
+		// validate();
+		cells.forEach(cell -> cell.onMatterTaskCreated(task));
+	}
+
+	@Override
+	public void onMatterTaskUpdated(MatterTask new_state, MatterTask old_state) {
+		// validate();
+		cells.forEach(cell -> cell.onMatterTaskUpdated(new_state, old_state));
+	}
+
+	@Override
+	public void onMatterTaskFinished(MatterTask state) {
+		// validate();
+		cells.forEach(cell -> cell.onMatterTaskFinished(state));
+	}
+
+	@Override
+	public void onMatterTaskRemoved(MatterTask state) {
+		// validate();
+		cells.forEach(cell -> cell.onMatterTaskRemoved(state));
+	}
 }

src/main/java/ru/dbotthepony/mc/otm/menu/MatterDecomposerMenu.java

@@ -20,9 +20,6 @@ public class MatterDecomposerMenu extends PoweredMatteryMenu {
 		this(containerID, inventory, null);
 	}
 
-	public MatterLevelWidget<PoweredMatteryMenu> matter_widget;
-	public ProgressGaugeWidget<PoweredMatteryMenu> progress_widget;
-
 	public MatterDecomposerMenu(int containerID, Inventory inventory, @Nullable BlockEntityMatterDecomposer tile) {
 		super(Registry.Menus.MATTER_DECOMPOSER, containerID, inventory, tile);
 		Container container = tile != null ? tile.item_container : new SimpleContainer(2);
@@ -39,11 +36,11 @@ public class MatterDecomposerMenu extends PoweredMatteryMenu {
 		addSlot(new MachineOutputSlot(container, 1, 61 + 18 + 10 + 3 + 22, 36, true, true));
 
 		if (tile == null || tile.getCapability(MatteryCapability.MATTER).resolve().isEmpty()) {
-			matter_widget = new MatterLevelWidget<>(this, 22, 14);
+			new MatterLevelWidget<>(this, 22, 14);
-			progress_widget = new ProgressGaugeWidget<>(this, 61 + 18 + 3, 36);
+			new ProgressGaugeWidget<>(this, 61 + 18 + 3, 36);
 		} else {
-			matter_widget = new MatterLevelWidget<>(this, 22, 14, tile.getCapability(MatteryCapability.MATTER).resolve().get());
+			new MatterLevelWidget<>(this, 22, 14, tile.getCapability(MatteryCapability.MATTER).resolve().get());
-			progress_widget = new ProgressGaugeWidget<>(this, 61 + 18 + 3, 36, () -> (float) tile.getWorkProgress(), tile::cantProcessJob);
+			new ProgressGaugeWidget<>(this, 61 + 18 + 3, 36, () -> (float) tile.getWorkProgress(), tile::cantProcessJob);
 		}
 
 		addBatterySlot(14);

src/main/java/ru/dbotthepony/mc/otm/menu/MatterPanelMenu.java

@@ -2,17 +2,14 @@ package ru.dbotthepony.mc.otm.menu;
 
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.entity.player.Inventory;
-import net.minecraft.world.inventory.MenuType;
-import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraftforge.fmllegacy.network.PacketDistributor;
 import ru.dbotthepony.mc.otm.OverdriveThatMatters;
 import ru.dbotthepony.mc.otm.Registry;
 import ru.dbotthepony.mc.otm.block.entity.BlockEntityMatterPanel;
-import ru.dbotthepony.mc.otm.capability.IPatternStorage;
+import ru.dbotthepony.mc.otm.capability.PatternState;
 import ru.dbotthepony.mc.otm.network.MatteryNetworking;
 import ru.dbotthepony.mc.otm.network.PatternStateSendListPacket;
 
-import javax.annotation.Nullable;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -41,16 +38,16 @@ public class MatterPanelMenu extends MatteryMenu {
 			sendPatternsToClient();
 	}
 
-	public ArrayList<IPatternStorage.PatternState> patterns = new ArrayList<>();
+	public ArrayList<PatternState> patterns = new ArrayList<>();
 	public int changeset = 0;
 
-	public void networkStates(List<IPatternStorage.PatternState> list) {
+	public void networkStates(List<PatternState> list) {
 		changeset++;
 		patterns.clear();
 		patterns.addAll(list);
 	}
 
-	public void requestReplication(ServerPlayer ply, IPatternStorage.PatternState state, int how_much) {
+	public void requestReplication(ServerPlayer ply, PatternState state, int how_much) {
 		if (tile == null)
 			return;
 
@@ -59,12 +56,14 @@ public class MatterPanelMenu extends MatteryMenu {
 		if (grid == null)
 			return;
 
-		if (!grid.hasPatternState(state)) {
+		var get_pattern = grid.getPattern(state);
-			OverdriveThatMatters.LOGGER.error("Received replication request from {} of {}, but can't find it nowhere", ply, state);
+
+		if (get_pattern == null) {
+			OverdriveThatMatters.LOGGER.error("Received replication request from {} of {}, but it is no longer in grid", ply, state);
 			return;
 		}
 
-		OverdriveThatMatters.LOGGER.debug("add task: {}", ((BlockEntityMatterPanel) tile).addTask(state.item(), how_much));
+		OverdriveThatMatters.LOGGER.debug("add task: {}", ((BlockEntityMatterPanel) tile).addTask(state, how_much));
 	}
 
 	public void sendPatternsToClient() {

src/main/java/ru/dbotthepony/mc/otm/menu/MatterReplicatorMenu.java

@@ -13,6 +13,7 @@ import ru.dbotthepony.mc.otm.menu.MatteryMenu;
 import ru.dbotthepony.mc.otm.menu.slot.BatterySlot;
 import ru.dbotthepony.mc.otm.menu.slot.MachineOutputSlot;
 import ru.dbotthepony.mc.otm.menu.slot.SlotAutoRenderable;
+import ru.dbotthepony.mc.otm.menu.widget.MatterLevelWidget;
 import ru.dbotthepony.mc.otm.menu.widget.ProgressGaugeWidget;
 
 import javax.annotation.Nullable;
@@ -31,12 +32,14 @@ public class MatterReplicatorMenu extends PoweredMatteryMenu {
 			addSlot(new MachineOutputSlot(container, i, 64 + 18 * i, 38, true, false));
 
 		if (tile != null) {
+			new MatterLevelWidget<>(this, 22, 14, tile.matter);
 			new ProgressGaugeWidget<>(this, 38, 38, () -> (float) tile.getWorkProgress(), tile::cantProcessJob);
 		} else {
+			new MatterLevelWidget<>(this, 22, 14);
 			new ProgressGaugeWidget<>(this, 38, 38);
 		}
 
-		addBatterySlot();
+		addBatterySlot(14);
 		addInventorySlots();
 	}
 
@@ -47,6 +50,6 @@ public class MatterReplicatorMenu extends PoweredMatteryMenu {
 
 	@Override
 	protected int getWorkingSlotEnd() {
-		return 7;
+		return 5;
 	}
 }

src/main/java/ru/dbotthepony/mc/otm/network/PatternReplicationRequestPacket.java

@@ -1,16 +1,14 @@
 package ru.dbotthepony.mc.otm.network;
 
 import net.minecraft.network.FriendlyByteBuf;
-import net.minecraftforge.api.distmarker.Dist;
-import net.minecraftforge.fml.DistExecutor;
 import net.minecraftforge.fmllegacy.network.NetworkEvent;
-import ru.dbotthepony.mc.otm.capability.IPatternStorage;
+import ru.dbotthepony.mc.otm.capability.PatternState;
 import ru.dbotthepony.mc.otm.menu.MatterPanelMenu;
 
 import java.util.function.Supplier;
 
-public record PatternReplicationRequestPacket(IPatternStorage.PatternState state, int how_much) {
+public record PatternReplicationRequestPacket(PatternState state, int how_much) {
-	public PatternReplicationRequestPacket(IPatternStorage.PatternState state, int how_much) {
+	public PatternReplicationRequestPacket(PatternState state, int how_much) {
 		this.state = state;
 		this.how_much = Math.max(1, Math.min(99999, how_much));
 	}
@@ -29,17 +27,14 @@ public record PatternReplicationRequestPacket(IPatternStorage.PatternState state
 
 			var ply = context.get().getSender();
 
-			if (ply.containerMenu == null)
+			if (!(ply.containerMenu instanceof MatterPanelMenu menu))
 				return;
 
-			if (!(ply.containerMenu instanceof MatterPanelMenu))
+			menu.requestReplication(ply, state, how_much);
-				return;
-
-			((MatterPanelMenu) ply.containerMenu).requestReplication(ply, state, how_much);
 		});
 	}
 
 	public static PatternReplicationRequestPacket decodeNetwork(FriendlyByteBuf buffer) {
-		return new PatternReplicationRequestPacket(IPatternStorage.PatternState.read(buffer), buffer.readInt());
+		return new PatternReplicationRequestPacket(PatternState.read(buffer), buffer.readInt());
 	}
 }

src/main/java/ru/dbotthepony/mc/otm/network/PatternStateSendListPacket.java

@@ -4,7 +4,7 @@ import net.minecraft.network.FriendlyByteBuf;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.fml.DistExecutor;
 import net.minecraftforge.fmllegacy.network.NetworkEvent;
-import ru.dbotthepony.mc.otm.capability.IPatternStorage;
+import ru.dbotthepony.mc.otm.capability.PatternState;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -15,17 +15,17 @@ public class PatternStateSendListPacket {
 
 	}
 
-	public PatternStateSendListPacket(Collection<IPatternStorage.PatternState> states) {
+	public PatternStateSendListPacket(Collection<PatternState> states) {
 		this.states.addAll(states);
 	}
 
-	public PatternStateSendListPacket(int container_id, Collection<IPatternStorage.PatternState> states) {
+	public PatternStateSendListPacket(int container_id, Collection<PatternState> states) {
 		this(states);
 		this.container_id = container_id;
 	}
 
 	public int container_id;
-	public ArrayList<IPatternStorage.PatternState> states = new ArrayList<>();
+	public ArrayList<PatternState> states = new ArrayList<>();
 
 	public void encodeNetwork(FriendlyByteBuf buffer) {
 		buffer.writeInt(container_id);
@@ -50,7 +50,7 @@ public class PatternStateSendListPacket {
 		int size = buffer.readInt();
 
 		for (int i = 0; i < size; i++) {
-			var state = IPatternStorage.PatternState.read(buffer);
+			var state = PatternState.read(buffer);
 
 			if (state != null) {
 				packet.states.add(state);

src/main/java/ru/dbotthepony/mc/otm/screen/MatterPanelScreen.java

@@ -12,15 +12,13 @@ import net.minecraft.network.chat.TranslatableComponent;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.item.ItemStack;
-import net.minecraft.world.item.Items;
 import ru.dbotthepony.mc.otm.OverdriveThatMatters;
-import ru.dbotthepony.mc.otm.capability.IPatternStorage;
+import ru.dbotthepony.mc.otm.capability.PatternState;
 import ru.dbotthepony.mc.otm.menu.MatterPanelMenu;
 import ru.dbotthepony.mc.otm.network.MatteryNetworking;
 import ru.dbotthepony.mc.otm.network.PatternReplicationRequestPacket;
 
 import javax.annotation.Nonnull;
-import java.util.ArrayList;
 import java.util.List;
 
 import static org.lwjgl.opengl.GL11.GL_ALWAYS;
@@ -45,7 +43,7 @@ public class MatterPanelScreen extends MatteryScreen<MatterPanelMenu> {
 		titleLabelY = 5;
 	}
 
-	private IPatternStorage.PatternState open_pattern;
+	private PatternState open_pattern;
 	private EditBox input_amount;
 	private Button inc_8;
 	private Button inc_64;
@@ -58,7 +56,7 @@ public class MatterPanelScreen extends MatteryScreen<MatterPanelMenu> {
 	private Button send;
 	private Button cancel;
 
-	private IPatternStorage.PatternState hovered_pattern;
+	private PatternState hovered_pattern;
 
 	private double dragger_position = 0;
 
@@ -139,7 +137,10 @@ public class MatterPanelScreen extends MatteryScreen<MatterPanelMenu> {
 
 		}
 
-		input_amount.setValue(Integer.toString(Math.max(1, Math.min(99999, value + amount))));
+		if (value == 1 && amount > 0)
+			input_amount.setValue(Integer.toString(amount));
+		else
+			input_amount.setValue(Integer.toString(Math.max(1, Math.min(99999, value + amount))));
 	}
 
 	private void onSend() {
@@ -250,7 +251,7 @@ public class MatterPanelScreen extends MatteryScreen<MatterPanelMenu> {
 		super.renderTooltip(pose, mouseX, mouseY);
 	}
 
-	private void openPattern(IPatternStorage.PatternState state) {
+	private void openPattern(PatternState state) {
 		open_pattern = state;
 		input_amount.setValue("1");
 		scrolling = false;