1.12.4

build.gradle

@@ -13,7 +13,7 @@ apply plugin: 'net.minecraftforge.gradle'
 apply plugin: 'eclipse'
 apply plugin: 'maven-publish'
 
-version = '1.12.3'
+version = '1.12.4'
 group = 'de.ellpeck.prettypipes' // http://maven.apache.org/guides/mini/guide-naming-conventions.html
 archivesBaseName = 'PrettyPipes'
 

src/main/java/de/ellpeck/prettypipes/Registry.java

@@ -86,7 +86,7 @@ public final class Registry {
     public static final CreativeModeTab TAB = new CreativeModeTab(PrettyPipes.ID) {
         @Override
         public ItemStack makeIcon() {
-            return new ItemStack(wrenchItem);
+            return new ItemStack(Registry.wrenchItem);
         }
     };
 
@@ -127,10 +127,10 @@ public final class Registry {
     @SubscribeEvent
     public static void registerBlocks(RegistryEvent.Register<Block> event) {
         event.getRegistry().registerAll(
-                pipeBlock = new PipeBlock().setRegistryName("pipe"),
-                itemTerminalBlock = new ItemTerminalBlock().setRegistryName("item_terminal"),
-                craftingTerminalBlock = new CraftingTerminalBlock().setRegistryName("crafting_terminal"),
-                pressurizerBlock = new PressurizerBlock().setRegistryName("pressurizer")
+                Registry.pipeBlock = new PipeBlock().setRegistryName("pipe"),
+                Registry.itemTerminalBlock = new ItemTerminalBlock().setRegistryName("item_terminal"),
+                Registry.craftingTerminalBlock = new CraftingTerminalBlock().setRegistryName("crafting_terminal"),
+                Registry.pressurizerBlock = new PressurizerBlock().setRegistryName("pressurizer")
         );
     }
 
@@ -138,59 +138,59 @@ public final class Registry {
     public static void registerItems(RegistryEvent.Register<Item> event) {
         var registry = event.getRegistry();
         registry.registerAll(
-                wrenchItem = new WrenchItem().setRegistryName("wrench"),
-                new Item(new Item.Properties().tab(TAB)).setRegistryName("blank_module"),
-                pipeFrameItem = new PipeFrameItem().setRegistryName("pipe_frame")
+                Registry.wrenchItem = new WrenchItem().setRegistryName("wrench"),
+                new Item(new Item.Properties().tab(Registry.TAB)).setRegistryName("blank_module"),
+                Registry.pipeFrameItem = new PipeFrameItem().setRegistryName("pipe_frame")
         );
-        registry.registerAll(createTieredModule("extraction_module", ExtractionModuleItem::new));
-        registry.registerAll(createTieredModule("filter_module", FilterModuleItem::new));
-        registry.registerAll(createTieredModule("speed_module", SpeedModuleItem::new));
-        registry.registerAll(createTieredModule("low_priority_module", LowPriorityModuleItem::new));
-        registry.registerAll(createTieredModule("high_priority_module", HighPriorityModuleItem::new));
-        registry.registerAll(createTieredModule("retrieval_module", RetrievalModuleItem::new));
+        registry.registerAll(Registry.createTieredModule("extraction_module", ExtractionModuleItem::new));
+        registry.registerAll(Registry.createTieredModule("filter_module", FilterModuleItem::new));
+        registry.registerAll(Registry.createTieredModule("speed_module", SpeedModuleItem::new));
+        registry.registerAll(Registry.createTieredModule("low_priority_module", LowPriorityModuleItem::new));
+        registry.registerAll(Registry.createTieredModule("high_priority_module", HighPriorityModuleItem::new));
+        registry.registerAll(Registry.createTieredModule("retrieval_module", RetrievalModuleItem::new));
         registry.register(new StackSizeModuleItem("stack_size_module"));
         registry.registerAll(Arrays.stream(ItemEquality.Type.values()).map(t -> new FilterModifierModuleItem(t.name().toLowerCase(Locale.ROOT) + "_filter_modifier", t)).toArray(Item[]::new));
         registry.register(new RedstoneModuleItem("redstone_module"));
         registry.register(new FilterIncreaseModuleItem("filter_increase_modifier"));
-        registry.registerAll(createTieredModule("crafting_module", CraftingModuleItem::new));
+        registry.registerAll(Registry.createTieredModule("crafting_module", CraftingModuleItem::new));
         registry.registerAll(Arrays.stream(SortingModuleItem.Type.values()).map(t -> new SortingModuleItem(t.name().toLowerCase(Locale.ROOT) + "_sorting_modifier", t)).toArray(Item[]::new));
 
         ForgeRegistries.BLOCKS.getValues().stream()
                 .filter(b -> b.getRegistryName().getNamespace().equals(PrettyPipes.ID))
-                .forEach(b -> registry.register(new BlockItem(b, new Item.Properties().tab(TAB)).setRegistryName(b.getRegistryName())));
+                .forEach(b -> registry.register(new BlockItem(b, new Item.Properties().tab(Registry.TAB)).setRegistryName(b.getRegistryName())));
     }
 
     @SubscribeEvent
     public static void registerBlockEntities(RegistryEvent.Register<BlockEntityType<?>> event) {
         event.getRegistry().registerAll(
-                pipeBlockEntity = (BlockEntityType<PipeBlockEntity>) BlockEntityType.Builder.of(PipeBlockEntity::new, pipeBlock).build(null).setRegistryName("pipe"),
-                itemTerminalBlockEntity = (BlockEntityType<ItemTerminalBlockEntity>) BlockEntityType.Builder.of(ItemTerminalBlockEntity::new, itemTerminalBlock).build(null).setRegistryName("item_terminal"),
-                craftingTerminalBlockEntity = (BlockEntityType<CraftingTerminalBlockEntity>) BlockEntityType.Builder.of(CraftingTerminalBlockEntity::new, craftingTerminalBlock).build(null).setRegistryName("crafting_terminal"),
-                pressurizerBlockEntity = (BlockEntityType<PressurizerBlockEntity>) BlockEntityType.Builder.of(PressurizerBlockEntity::new, pressurizerBlock).build(null).setRegistryName("pressurizer")
+                Registry.pipeBlockEntity = (BlockEntityType<PipeBlockEntity>) BlockEntityType.Builder.of(PipeBlockEntity::new, Registry.pipeBlock).build(null).setRegistryName("pipe"),
+                Registry.itemTerminalBlockEntity = (BlockEntityType<ItemTerminalBlockEntity>) BlockEntityType.Builder.of(ItemTerminalBlockEntity::new, Registry.itemTerminalBlock).build(null).setRegistryName("item_terminal"),
+                Registry.craftingTerminalBlockEntity = (BlockEntityType<CraftingTerminalBlockEntity>) BlockEntityType.Builder.of(CraftingTerminalBlockEntity::new, Registry.craftingTerminalBlock).build(null).setRegistryName("crafting_terminal"),
+                Registry.pressurizerBlockEntity = (BlockEntityType<PressurizerBlockEntity>) BlockEntityType.Builder.of(PressurizerBlockEntity::new, Registry.pressurizerBlock).build(null).setRegistryName("pressurizer")
         );
     }
 
     @SubscribeEvent
     public static void registerEntities(RegistryEvent.Register<EntityType<?>> event) {
         event.getRegistry().registerAll(
-                pipeFrameEntity = (EntityType<PipeFrameEntity>) EntityType.Builder.<PipeFrameEntity>of(PipeFrameEntity::new, MobCategory.MISC).build("pipe_frame").setRegistryName("pipe_frame")
+                Registry.pipeFrameEntity = (EntityType<PipeFrameEntity>) EntityType.Builder.<PipeFrameEntity>of(PipeFrameEntity::new, MobCategory.MISC).build("pipe_frame").setRegistryName("pipe_frame")
         );
     }
 
     @SubscribeEvent
     public static void registerContainers(RegistryEvent.Register<MenuType<?>> event) {
         event.getRegistry().registerAll(
-                pipeContainer = (MenuType<MainPipeContainer>) IForgeMenuType.create((windowId, inv, data) -> new MainPipeContainer(pipeContainer, windowId, inv.player, data.readBlockPos())).setRegistryName("pipe"),
-                itemTerminalContainer = (MenuType<ItemTerminalContainer>) IForgeMenuType.create((windowId, inv, data) -> new ItemTerminalContainer(itemTerminalContainer, windowId, inv.player, data.readBlockPos())).setRegistryName("item_terminal"),
-                craftingTerminalContainer = (MenuType<CraftingTerminalContainer>) IForgeMenuType.create((windowId, inv, data) -> new CraftingTerminalContainer(craftingTerminalContainer, windowId, inv.player, data.readBlockPos())).setRegistryName("crafting_terminal"),
-                pressurizerContainer = (MenuType<PressurizerContainer>) IForgeMenuType.create((windowId, inv, data) -> new PressurizerContainer(pressurizerContainer, windowId, inv.player, data.readBlockPos())).setRegistryName("pressurizer"),
-                extractionModuleContainer = createPipeContainer("extraction_module"),
-                filterModuleContainer = createPipeContainer("filter_module"),
-                retrievalModuleContainer = createPipeContainer("retrieval_module"),
-                stackSizeModuleContainer = createPipeContainer("stack_size_module"),
-                filterIncreaseModuleContainer = createPipeContainer("filter_increase_module"),
-                craftingModuleContainer = createPipeContainer("crafting_module"),
-                filterModifierModuleContainer = createPipeContainer("filter_modifier_module")
+                Registry.pipeContainer = (MenuType<MainPipeContainer>) IForgeMenuType.create((windowId, inv, data) -> new MainPipeContainer(Registry.pipeContainer, windowId, inv.player, data.readBlockPos())).setRegistryName("pipe"),
+                Registry.itemTerminalContainer = (MenuType<ItemTerminalContainer>) IForgeMenuType.create((windowId, inv, data) -> new ItemTerminalContainer(Registry.itemTerminalContainer, windowId, inv.player, data.readBlockPos())).setRegistryName("item_terminal"),
+                Registry.craftingTerminalContainer = (MenuType<CraftingTerminalContainer>) IForgeMenuType.create((windowId, inv, data) -> new CraftingTerminalContainer(Registry.craftingTerminalContainer, windowId, inv.player, data.readBlockPos())).setRegistryName("crafting_terminal"),
+                Registry.pressurizerContainer = (MenuType<PressurizerContainer>) IForgeMenuType.create((windowId, inv, data) -> new PressurizerContainer(Registry.pressurizerContainer, windowId, inv.player, data.readBlockPos())).setRegistryName("pressurizer"),
+                Registry.extractionModuleContainer = Registry.createPipeContainer("extraction_module"),
+                Registry.filterModuleContainer = Registry.createPipeContainer("filter_module"),
+                Registry.retrievalModuleContainer = Registry.createPipeContainer("retrieval_module"),
+                Registry.stackSizeModuleContainer = Registry.createPipeContainer("stack_size_module"),
+                Registry.filterIncreaseModuleContainer = Registry.createPipeContainer("filter_increase_module"),
+                Registry.craftingModuleContainer = Registry.createPipeContainer("crafting_module"),
+                Registry.filterModifierModuleContainer = Registry.createPipeContainer("filter_modifier_module")
         );
     }
 
@@ -217,21 +217,21 @@ public final class Registry {
     public static final class Client {
 
         public static void setup(FMLClientSetupEvent event) {
-            ItemBlockRenderTypes.setRenderLayer(pipeBlock, RenderType.cutout());
-            BlockEntityRenderers.register(pipeBlockEntity, PipeRenderer::new);
-            EntityRenderers.register(pipeFrameEntity, PipeFrameRenderer::new);
+            ItemBlockRenderTypes.setRenderLayer(Registry.pipeBlock, RenderType.cutout());
+            BlockEntityRenderers.register(Registry.pipeBlockEntity, PipeRenderer::new);
+            EntityRenderers.register(Registry.pipeFrameEntity, PipeFrameRenderer::new);
 
-            MenuScreens.register(pipeContainer, MainPipeGui::new);
-            MenuScreens.register(itemTerminalContainer, ItemTerminalGui::new);
-            MenuScreens.register(pressurizerContainer, PressurizerGui::new);
-            MenuScreens.register(craftingTerminalContainer, CraftingTerminalGui::new);
-            MenuScreens.register(extractionModuleContainer, ExtractionModuleGui::new);
-            MenuScreens.register(filterModuleContainer, FilterModuleGui::new);
-            MenuScreens.register(retrievalModuleContainer, RetrievalModuleGui::new);
-            MenuScreens.register(stackSizeModuleContainer, StackSizeModuleGui::new);
-            MenuScreens.register(filterIncreaseModuleContainer, FilterIncreaseModuleGui::new);
-            MenuScreens.register(craftingModuleContainer, CraftingModuleGui::new);
-            MenuScreens.register(filterModifierModuleContainer, FilterModifierModuleGui::new);
+            MenuScreens.register(Registry.pipeContainer, MainPipeGui::new);
+            MenuScreens.register(Registry.itemTerminalContainer, ItemTerminalGui::new);
+            MenuScreens.register(Registry.pressurizerContainer, PressurizerGui::new);
+            MenuScreens.register(Registry.craftingTerminalContainer, CraftingTerminalGui::new);
+            MenuScreens.register(Registry.extractionModuleContainer, ExtractionModuleGui::new);
+            MenuScreens.register(Registry.filterModuleContainer, FilterModuleGui::new);
+            MenuScreens.register(Registry.retrievalModuleContainer, RetrievalModuleGui::new);
+            MenuScreens.register(Registry.stackSizeModuleContainer, StackSizeModuleGui::new);
+            MenuScreens.register(Registry.filterIncreaseModuleContainer, FilterIncreaseModuleGui::new);
+            MenuScreens.register(Registry.craftingModuleContainer, CraftingModuleGui::new);
+            MenuScreens.register(Registry.filterModifierModuleContainer, FilterModifierModuleGui::new);
         }
     }
 }

src/main/java/de/ellpeck/prettypipes/entities/PipeFrameEntity.java

@@ -42,7 +42,7 @@ public class PipeFrameEntity extends ItemFrame implements IEntityAdditionalSpawn
     @Override
     protected void defineSynchedData() {
         super.defineSynchedData();
-        this.entityData.define(AMOUNT, -1);
+        this.entityData.define(PipeFrameEntity.AMOUNT, -1);
     }
 
     @Override
@@ -53,7 +53,7 @@ public class PipeFrameEntity extends ItemFrame implements IEntityAdditionalSpawn
         if (this.tickCount % 40 != 0)
             return;
         var network = PipeNetwork.get(this.level);
-        var attached = getAttachedPipe(this.level, this.pos, this.direction);
+        var attached = PipeFrameEntity.getAttachedPipe(this.level, this.pos, this.direction);
         if (attached != null) {
             var node = network.getNodeFromPipe(attached);
             if (node != null) {
@@ -61,17 +61,17 @@ public class PipeFrameEntity extends ItemFrame implements IEntityAdditionalSpawn
                 if (!stack.isEmpty()) {
                     var items = network.getOrderedNetworkItems(node);
                     var amount = items.stream().mapToInt(i -> i.getItemAmount(this.level, stack)).sum();
-                    this.entityData.set(AMOUNT, amount);
+                    this.entityData.set(PipeFrameEntity.AMOUNT, amount);
                     return;
                 }
             }
         }
-        this.entityData.set(AMOUNT, -1);
+        this.entityData.set(PipeFrameEntity.AMOUNT, -1);
     }
 
     @Override
     public boolean survives() {
-        return super.survives() && canPlace(this.level, this.pos, this.direction);
+        return super.survives() && PipeFrameEntity.canPlace(this.level, this.pos, this.direction);
     }
 
     private static BlockPos getAttachedPipe(Level world, BlockPos pos, Direction direction) {
@@ -85,11 +85,11 @@ public class PipeFrameEntity extends ItemFrame implements IEntityAdditionalSpawn
     }
 
     public static boolean canPlace(Level world, BlockPos pos, Direction direction) {
-        return getAttachedPipe(world, pos, direction) != null;
+        return PipeFrameEntity.getAttachedPipe(world, pos, direction) != null;
     }
 
     public int getAmount() {
-        return this.entityData.get(AMOUNT);
+        return this.entityData.get(PipeFrameEntity.AMOUNT);
     }
 
     @Override

src/main/java/de/ellpeck/prettypipes/items/IModule.java

@@ -1,9 +1,11 @@
 package de.ellpeck.prettypipes.items;
 
+import de.ellpeck.prettypipes.misc.DirectionSelector;
 import de.ellpeck.prettypipes.misc.ItemFilter;
 import de.ellpeck.prettypipes.pipe.PipeBlockEntity;
 import de.ellpeck.prettypipes.pipe.containers.AbstractPipeContainer;
 import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
@@ -17,9 +19,9 @@ public interface IModule {
 
     void tick(ItemStack module, PipeBlockEntity tile);
 
-    boolean canNetworkSee(ItemStack module, PipeBlockEntity tile);
+    boolean canNetworkSee(ItemStack module, PipeBlockEntity tile, Direction direction, IItemHandler handler);
 
-    boolean canAcceptItem(ItemStack module, PipeBlockEntity tile, ItemStack stack);
+    boolean canAcceptItem(ItemStack module, PipeBlockEntity tile, ItemStack stack, Direction direction, IItemHandler destination);
 
     int getMaxInsertionAmount(ItemStack module, PipeBlockEntity tile, ItemStack stack, IItemHandler destination);
 
@@ -44,4 +46,6 @@ public interface IModule {
     Integer getCustomNextNode(ItemStack module, PipeBlockEntity tile, List<BlockPos> nodes, int index);
 
     ItemFilter getItemFilter(ItemStack module, PipeBlockEntity tile);
+
+    DirectionSelector getDirectionSelector(ItemStack module, PipeBlockEntity tile);
 }

src/main/java/de/ellpeck/prettypipes/items/ModuleItem.java

@@ -2,10 +2,12 @@ package de.ellpeck.prettypipes.items;
 
 import de.ellpeck.prettypipes.Registry;
 import de.ellpeck.prettypipes.Utility;
+import de.ellpeck.prettypipes.misc.DirectionSelector;
 import de.ellpeck.prettypipes.misc.ItemFilter;
 import de.ellpeck.prettypipes.pipe.PipeBlockEntity;
 import de.ellpeck.prettypipes.pipe.containers.AbstractPipeContainer;
 import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
 import net.minecraft.network.chat.Component;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.entity.player.Player;
@@ -45,12 +47,12 @@ public abstract class ModuleItem extends Item implements IModule {
     }
 
     @Override
-    public boolean canNetworkSee(ItemStack module, PipeBlockEntity tile) {
+    public boolean canNetworkSee(ItemStack module, PipeBlockEntity tile, Direction direction, IItemHandler handler) {
         return true;
     }
 
     @Override
-    public boolean canAcceptItem(ItemStack module, PipeBlockEntity tile, ItemStack stack) {
+    public boolean canAcceptItem(ItemStack module, PipeBlockEntity tile, ItemStack stack, Direction direction, IItemHandler destination) {
         return true;
     }
 
@@ -103,4 +105,9 @@ public abstract class ModuleItem extends Item implements IModule {
     public ItemFilter getItemFilter(ItemStack module, PipeBlockEntity tile) {
         return null;
     }
+
+    @Override
+    public DirectionSelector getDirectionSelector(ItemStack module, PipeBlockEntity tile) {
+        return null;
+    }
 }

src/main/java/de/ellpeck/prettypipes/misc/DirectionSelector.java

@@ -0,0 +1,110 @@
+package de.ellpeck.prettypipes.misc;
+
+import de.ellpeck.prettypipes.PrettyPipes;
+import de.ellpeck.prettypipes.packets.PacketButton;
+import de.ellpeck.prettypipes.pipe.PipeBlockEntity;
+import net.minecraft.client.gui.components.AbstractWidget;
+import net.minecraft.core.Direction;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.MutableComponent;
+import net.minecraft.network.chat.TranslatableComponent;
+import net.minecraft.world.item.ItemStack;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+import net.minecraftforge.client.gui.widget.ExtendedButton;
+
+public class DirectionSelector {
+
+    private Direction direction;
+    private boolean modified;
+
+    private final ItemStack stack;
+    private final PipeBlockEntity pipe;
+
+    public DirectionSelector(ItemStack stack, PipeBlockEntity pipe) {
+        this.stack = stack;
+        this.pipe = pipe;
+        this.load();
+    }
+
+    @OnlyIn(Dist.CLIENT)
+    public AbstractWidget getButton(int x, int y) {
+        return new ExtendedButton(x, y, 100, 20, new TranslatableComponent("info." + PrettyPipes.ID + ".populate"), button ->
+                PacketButton.sendAndExecute(this.pipe.getBlockPos(), PacketButton.ButtonResult.DIRECTION_SELECTOR)) {
+            @Override
+            public Component getMessage() {
+                var pipe = DirectionSelector.this.pipe;
+                var dir = DirectionSelector.this.getDirection();
+                MutableComponent msg = new TranslatableComponent("dir." + PrettyPipes.ID + "." + (dir != null ? dir.getName() : "none"));
+                if (dir != null) {
+                    var blockName = pipe.getItemHandler(dir) != null ? pipe.getLevel().getBlockState(pipe.getBlockPos().relative(dir)).getBlock().getName() : null;
+                    if (blockName != null)
+                        msg = msg.append(" (").append(blockName).append(")");
+                }
+                return msg;
+            }
+        };
+    }
+
+    public void onButtonPacket() {
+        var dir = this.getValidDirection(this.getDirection());
+        if (this.direction != dir) {
+            this.direction = dir;
+            this.modified = true;
+        }
+    }
+
+    public void save() {
+        if (!this.modified)
+            return;
+        this.modified = false;
+
+        var tag = new CompoundTag();
+        var dir = this.getDirection();
+        if (dir != null)
+            tag.putString("direction", dir.getName());
+        this.stack.getOrCreateTag().put("direction_selector", tag);
+    }
+
+    public void load() {
+        if (this.stack.hasTag()) {
+            var tag = this.stack.getTag().getCompound("direction_selector");
+            this.direction = Direction.byName(tag.getString("direction"));
+        }
+    }
+
+    public Direction getDirection() {
+        // default to the first direction with a container if ours is invalid or unset
+        if (this.direction == null || !this.isDirectionValid(this.direction))
+            return this.getValidDirection(this.direction);
+        return this.direction;
+    }
+
+    private boolean isDirectionValid(Direction dir) {
+        if (this.pipe.getItemHandler(dir) == null)
+            return false;
+        return this.pipe.streamModules()
+                .filter(p -> p.getLeft() != this.stack)
+                .map(p -> p.getRight().getDirectionSelector(p.getLeft(), this.pipe))
+                // don't use getDirection here because we don't want a stack overflow
+                .noneMatch(p -> p != null && p.direction == dir);
+    }
+
+    private Direction getValidDirection(Direction dir) {
+        if (dir == null)
+            dir = Direction.UP;
+        for (var i = 0; i < 6; i++) {
+            dir = Direction.from3DDataValue(dir.get3DDataValue() + 1);
+            if (this.isDirectionValid(dir))
+                return dir;
+        }
+        return null;
+    }
+
+    public interface IDirectionContainer {
+
+        DirectionSelector getSelector();
+
+    }
+}

src/main/java/de/ellpeck/prettypipes/misc/ItemFilter.java

@@ -48,17 +48,22 @@ public class ItemFilter extends ItemStackHandler {
     }
 
     @OnlyIn(Dist.CLIENT)
-    public List<AbstractWidget> getButtons(Screen gui, int x, int y) {
+    public List<AbstractWidget> getButtons(Screen gui, int x, int y, boolean rightAligned) {
         List<AbstractWidget> buttons = new ArrayList<>();
         if (this.canModifyWhitelist) {
-            var whitelistText = (Supplier<TranslatableComponent>) () -> new TranslatableComponent("info." + PrettyPipes.ID + "." + (this.isWhitelist ? "whitelist" : "blacklist"));
-            buttons.add(new Button(x, y, 70, 20, whitelistText.get(), button -> {
+            var whitelistText = (Supplier<String>) () -> "info." + PrettyPipes.ID + "." + (this.isWhitelist ? "whitelist" : "blacklist");
+            buttons.add(new Button(x - 20, y, 20, 20, new TranslatableComponent(whitelistText.get()), button -> {
                 PacketButton.sendAndExecute(this.pipe.getBlockPos(), PacketButton.ButtonResult.FILTER_CHANGE, 0);
-                button.setMessage(whitelistText.get());
-            }));
+                button.setMessage(new TranslatableComponent(whitelistText.get()));
+            }) {
+                @Override
+                public void renderToolTip(PoseStack matrix, int x, int y) {
+                    gui.renderTooltip(matrix, new TranslatableComponent(whitelistText.get() + ".description").withStyle(ChatFormatting.GRAY), x, y);
+                }
+            });
         }
         if (this.canPopulateFromInventories) {
-            buttons.add(new Button(x + 72, y, 70, 20, new TranslatableComponent("info." + PrettyPipes.ID + ".populate"), button -> PacketButton.sendAndExecute(this.pipe.getBlockPos(), PacketButton.ButtonResult.FILTER_CHANGE, 1)) {
+            buttons.add(new Button(x - 42, y, 20, 20, new TranslatableComponent("info." + PrettyPipes.ID + ".populate"), button -> PacketButton.sendAndExecute(this.pipe.getBlockPos(), PacketButton.ButtonResult.FILTER_CHANGE, 1)) {
                 @Override
                 public void renderToolTip(PoseStack matrix, int x, int y) {
                     gui.renderTooltip(matrix, new TranslatableComponent("info." + PrettyPipes.ID + ".populate.description").withStyle(ChatFormatting.GRAY), x, y);
@@ -107,7 +112,7 @@ public class ItemFilter extends ItemStackHandler {
     }
 
     private boolean isFiltered(ItemStack stack) {
-        var types = getEqualityTypes(this.pipe);
+        var types = ItemFilter.getEqualityTypes(this.pipe);
         // also check if any filter increase modules have the item we need
         for (ItemStackHandler handler : this.pipe.getFilters()) {
             for (var i = 0; i < handler.getSlots(); i++) {
@@ -164,6 +169,7 @@ public class ItemFilter extends ItemStackHandler {
 
         ItemFilter getFilter();
 
-        default void onFilterPopulated() {}
+        default void onFilterPopulated() {
+        }
     }
 }

src/main/java/de/ellpeck/prettypipes/misc/ItemOrder.java

@@ -16,6 +16,6 @@ public enum ItemOrder {
     }
 
     public ItemOrder next() {
-        return values()[(this.ordinal() + 1) % values().length];
+        return ItemOrder.values()[(this.ordinal() + 1) % ItemOrder.values().length];
     }
 }

src/main/java/de/ellpeck/prettypipes/misc/ItemTerminalWidget.java

@@ -4,6 +4,7 @@ import com.mojang.blaze3d.systems.RenderSystem;
 import com.mojang.blaze3d.vertex.PoseStack;
 import de.ellpeck.prettypipes.terminal.containers.ItemTerminalGui;
 import net.minecraft.ChatFormatting;
+import net.minecraft.client.gui.GuiComponent;
 import net.minecraft.client.gui.components.AbstractWidget;
 import net.minecraft.client.gui.narration.NarrationElementOutput;
 import net.minecraft.network.chat.TextComponent;
@@ -41,7 +42,7 @@ public class ItemTerminalWidget extends AbstractWidget {
         this.setBlitOffset(100);
         renderer.blitOffset = 100;
         if (this.selected)
-            fill(matrix, this.x, this.y, this.x + 16, this.y + 16, -2130706433);
+            GuiComponent.fill(matrix, this.x, this.y, this.x + 16, this.y + 16, -2130706433);
         RenderSystem.enableDepthTest();
         renderer.renderGuiItem(this.stack, this.x, this.y);
         var amount = !this.craftable ? this.stack.getCount() : 0;

src/main/java/de/ellpeck/prettypipes/misc/PlayerPrefs.java

@@ -20,30 +20,30 @@ public class PlayerPrefs {
     public boolean syncJei = true;
 
     public void save() {
-        var file = getFile();
+        var file = PlayerPrefs.getFile();
         if (file.exists())
             file.delete();
         try (var writer = new FileWriter(file)) {
-            GSON.toJson(this, writer);
+            PlayerPrefs.GSON.toJson(this, writer);
         } catch (IOException e) {
             e.printStackTrace();
         }
     }
 
     public static PlayerPrefs get() {
-        if (instance == null) {
-            var file = getFile();
+        if (PlayerPrefs.instance == null) {
+            var file = PlayerPrefs.getFile();
             if (file.exists()) {
                 try (var reader = new FileReader(file)) {
-                    instance = GSON.fromJson(reader, PlayerPrefs.class);
-                    return instance;
+                    PlayerPrefs.instance = PlayerPrefs.GSON.fromJson(reader, PlayerPrefs.class);
+                    return PlayerPrefs.instance;
                 } catch (IOException e) {
                     e.printStackTrace();
                 }
             }
-            instance = new PlayerPrefs();
+            PlayerPrefs.instance = new PlayerPrefs();
         }
-        return instance;
+        return PlayerPrefs.instance;
     }
 
     private static File getFile() {

src/main/java/de/ellpeck/prettypipes/network/NetworkLocation.java

@@ -102,6 +102,6 @@ public class NetworkLocation implements INBTSerializable<CompoundTag> {
     @Override
     public void deserializeNBT(CompoundTag nbt) {
         this.pipePos = NbtUtils.readBlockPos(nbt.getCompound("pipe_pos"));
-        this.direction = Direction.values()[(nbt.getInt("direction"))];
+        this.direction = Direction.values()[nbt.getInt("direction")];
     }
 }

src/main/java/de/ellpeck/prettypipes/network/PipeItem.java

@@ -60,7 +60,7 @@ public class PipeItem implements IPipeItem {
     }
 
     public PipeItem(ItemStack stack, float speed) {
-        this(TYPE, stack, speed);
+        this(PipeItem.TYPE, stack, speed);
     }
 
     public PipeItem(ResourceLocation type, CompoundTag nbt) {
@@ -78,7 +78,7 @@ public class PipeItem implements IPipeItem {
     public void setDestination(BlockPos startInventory, BlockPos destInventory, GraphPath<BlockPos, NetworkEdge> path) {
         this.startInventory = startInventory;
         this.destInventory = destInventory;
-        this.path = compilePath(path);
+        this.path = PipeItem.compilePath(path);
         this.currGoalPos = this.getStartPipe();
         this.currentTile = 0;
 
@@ -126,7 +126,7 @@ public class PipeItem implements IPipeItem {
                     currPipe = next;
                 }
             } else {
-                var dist = (this.currGoalPos).distToLowCornerSqr(this.x - 0.5F, this.y - 0.5F, this.z - 0.5F);
+                var dist = this.currGoalPos.distToLowCornerSqr(this.x - 0.5F, this.y - 0.5F, this.z - 0.5F);
                 if (dist < currSpeed * currSpeed) {
                     // we're past the start of the pipe, so move to the center of the next pipe
                     BlockPos nextPos;

src/main/java/de/ellpeck/prettypipes/network/PipeNetwork.java

@@ -324,11 +324,9 @@ public class PipeNetwork implements ICapabilitySerializable<CompoundTag>, GraphL
             if (!this.world.isLoaded(dest))
                 continue;
             var pipe = this.getPipe(dest);
-            if (!pipe.canNetworkSee())
-                continue;
             for (var dir : Direction.values()) {
                 var handler = pipe.getItemHandler(dir);
-                if (handler == null)
+                if (handler == null || !pipe.canNetworkSee(dir, handler))
                     continue;
                 // check if this handler already exists (double-connected pipes, double chests etc.)
                 if (info.stream().anyMatch(l -> handler.equals(l.getItemHandler(this.world))))

src/main/java/de/ellpeck/prettypipes/packets/PacketButton.java

@@ -26,6 +26,8 @@ import org.apache.logging.log4j.util.TriConsumer;
 import javax.annotation.Nullable;
 import java.util.function.Supplier;
 
+import static de.ellpeck.prettypipes.misc.DirectionSelector.IDirectionContainer;
+
 public class PacketButton {
 
     private BlockPos pos;
@@ -121,6 +123,10 @@ public class PacketButton {
         TAG_FILTER((pos, data, player) -> {
             var container = (FilterModifierModuleContainer) player.containerMenu;
             FilterModifierModuleItem.setFilterTag(container.moduleStack, container.getTags().get(data[0]));
+        }),
+        DIRECTION_SELECTOR((pos, data, player) -> {
+            if (player.containerMenu instanceof IDirectionContainer filtered)
+                filtered.getSelector().onButtonPacket();
         });
 
         public final TriConsumer<BlockPos, int[], Player> action;

src/main/java/de/ellpeck/prettypipes/packets/PacketCraftingModuleTransfer.java

@@ -53,8 +53,8 @@ public class PacketCraftingModuleTransfer {
             public void run() {
                 Player player = ctx.get().getSender();
                 if (player.containerMenu instanceof CraftingModuleContainer container) {
-                    copy(container.input, message.inputs);
-                    copy(container.output, message.outputs);
+                    PacketCraftingModuleTransfer.copy(container.input, message.inputs);
+                    PacketCraftingModuleTransfer.copy(container.output, message.outputs);
                     container.modified = true;
                     container.broadcastChanges();
                 }

src/main/java/de/ellpeck/prettypipes/packets/PacketGhostSlot.java

@@ -93,7 +93,7 @@ public class PacketGhostSlot {
         private final TagKey<Item> tag;
 
         public Entry(List<ItemStack> stacks) {
-            var tag = getTagForStacks(stacks);
+            var tag = Entry.getTagForStacks(stacks);
             if (tag != null) {
                 this.stacks = null;
                 this.tag = tag;

src/main/java/de/ellpeck/prettypipes/packets/PacketHandler.java

@@ -16,24 +16,24 @@ public final class PacketHandler {
     private static SimpleChannel network;
 
     public static void setup() {
-        network = NetworkRegistry.newSimpleChannel(new ResourceLocation(PrettyPipes.ID, "network"), () -> VERSION, VERSION::equals, VERSION::equals);
-        network.registerMessage(0, PacketItemEnterPipe.class, PacketItemEnterPipe::toBytes, PacketItemEnterPipe::fromBytes, PacketItemEnterPipe::onMessage);
-        network.registerMessage(1, PacketButton.class, PacketButton::toBytes, PacketButton::fromBytes, PacketButton::onMessage);
-        network.registerMessage(2, PacketNetworkItems.class, PacketNetworkItems::toBytes, PacketNetworkItems::fromBytes, PacketNetworkItems::onMessage);
-        network.registerMessage(3, PacketRequest.class, PacketRequest::toBytes, PacketRequest::fromBytes, PacketRequest::onMessage);
-        network.registerMessage(4, PacketGhostSlot.class, PacketGhostSlot::toBytes, PacketGhostSlot::fromBytes, PacketGhostSlot::onMessage);
-        network.registerMessage(5, PacketCraftingModuleTransfer.class, PacketCraftingModuleTransfer::toBytes, PacketCraftingModuleTransfer::fromBytes, PacketCraftingModuleTransfer::onMessage);
+        PacketHandler.network = NetworkRegistry.newSimpleChannel(new ResourceLocation(PrettyPipes.ID, "network"), () -> PacketHandler.VERSION, PacketHandler.VERSION::equals, PacketHandler.VERSION::equals);
+        PacketHandler.network.registerMessage(0, PacketItemEnterPipe.class, PacketItemEnterPipe::toBytes, PacketItemEnterPipe::fromBytes, PacketItemEnterPipe::onMessage);
+        PacketHandler.network.registerMessage(1, PacketButton.class, PacketButton::toBytes, PacketButton::fromBytes, PacketButton::onMessage);
+        PacketHandler.network.registerMessage(2, PacketNetworkItems.class, PacketNetworkItems::toBytes, PacketNetworkItems::fromBytes, PacketNetworkItems::onMessage);
+        PacketHandler.network.registerMessage(3, PacketRequest.class, PacketRequest::toBytes, PacketRequest::fromBytes, PacketRequest::onMessage);
+        PacketHandler.network.registerMessage(4, PacketGhostSlot.class, PacketGhostSlot::toBytes, PacketGhostSlot::fromBytes, PacketGhostSlot::onMessage);
+        PacketHandler.network.registerMessage(5, PacketCraftingModuleTransfer.class, PacketCraftingModuleTransfer::toBytes, PacketCraftingModuleTransfer::fromBytes, PacketCraftingModuleTransfer::onMessage);
     }
 
     public static void sendToAllLoaded(Level world, BlockPos pos, Object message) {
-        network.send(PacketDistributor.TRACKING_CHUNK.with(() -> world.getChunkAt(pos)), message);
+        PacketHandler.network.send(PacketDistributor.TRACKING_CHUNK.with(() -> world.getChunkAt(pos)), message);
     }
 
     public static void sendTo(Player player, Object message) {
-        network.send(PacketDistributor.PLAYER.with(() -> (ServerPlayer) player), message);
+        PacketHandler.network.send(PacketDistributor.PLAYER.with(() -> (ServerPlayer) player), message);
     }
 
     public static void sendToServer(Object message) {
-        network.send(PacketDistributor.SERVER.noArg(), message);
+        PacketHandler.network.send(PacketDistributor.SERVER.noArg(), message);
     }
 }

src/main/java/de/ellpeck/prettypipes/pipe/IPipeItem.java

@@ -46,7 +46,7 @@ public interface IPipeItem extends INBTSerializable<CompoundTag> {
 
     static IPipeItem load(CompoundTag nbt) {
         var type = new ResourceLocation(nbt.getString("type"));
-        var func = TYPES.get(type);
+        var func = IPipeItem.TYPES.get(type);
         return func != null ? func.apply(type, nbt) : null;
     }
 }

src/main/java/de/ellpeck/prettypipes/pipe/PipeBlock.java

@@ -50,26 +50,26 @@ public class PipeBlock extends BaseEntityBlock {
     public static final Map<Direction, EnumProperty<ConnectionType>> DIRECTIONS = new HashMap<>();
     private static final Map<Pair<BlockState, BlockState>, VoxelShape> SHAPE_CACHE = new HashMap<>();
     private static final Map<Pair<BlockState, BlockState>, VoxelShape> COLL_SHAPE_CACHE = new HashMap<>();
-    private static final VoxelShape CENTER_SHAPE = box(5, 5, 5, 11, 11, 11);
+    private static final VoxelShape CENTER_SHAPE = Block.box(5, 5, 5, 11, 11, 11);
     public static final Map<Direction, VoxelShape> DIR_SHAPES = ImmutableMap.<Direction, VoxelShape>builder()
-            .put(Direction.UP, box(5, 10, 5, 11, 16, 11))
-            .put(Direction.DOWN, box(5, 0, 5, 11, 6, 11))
-            .put(Direction.NORTH, box(5, 5, 0, 11, 11, 6))
-            .put(Direction.SOUTH, box(5, 5, 10, 11, 11, 16))
-            .put(Direction.EAST, box(10, 5, 5, 16, 11, 11))
-            .put(Direction.WEST, box(0, 5, 5, 6, 11, 11))
+            .put(Direction.UP, Block.box(5, 10, 5, 11, 16, 11))
+            .put(Direction.DOWN, Block.box(5, 0, 5, 11, 6, 11))
+            .put(Direction.NORTH, Block.box(5, 5, 0, 11, 11, 6))
+            .put(Direction.SOUTH, Block.box(5, 5, 10, 11, 11, 16))
+            .put(Direction.EAST, Block.box(10, 5, 5, 16, 11, 11))
+            .put(Direction.WEST, Block.box(0, 5, 5, 6, 11, 11))
             .build();
 
     static {
         for (var dir : Direction.values())
-            DIRECTIONS.put(dir, EnumProperty.create(dir.getName(), ConnectionType.class));
+            PipeBlock.DIRECTIONS.put(dir, EnumProperty.create(dir.getName(), ConnectionType.class));
     }
 
     public PipeBlock() {
         super(Block.Properties.of(Material.STONE).strength(2).sound(SoundType.STONE).noOcclusion());
 
         var state = this.defaultBlockState().setValue(BlockStateProperties.WATERLOGGED, false);
-        for (var prop : DIRECTIONS.values())
+        for (var prop : PipeBlock.DIRECTIONS.values())
             state = state.setValue(prop, ConnectionType.DISCONNECTED);
         this.registerDefaultState(state);
     }
@@ -100,7 +100,7 @@ public class PipeBlock extends BaseEntityBlock {
 
     @Override
     protected void createBlockStateDefinition(StateDefinition.Builder<Block, BlockState> builder) {
-        builder.add(DIRECTIONS.values().toArray(new EnumProperty[0]));
+        builder.add(PipeBlock.DIRECTIONS.values().toArray(new EnumProperty[0]));
         builder.add(BlockStateProperties.WATERLOGGED);
     }
 
@@ -114,7 +114,7 @@ public class PipeBlock extends BaseEntityBlock {
         var newState = this.createState(worldIn, pos, state);
         if (newState != state) {
             worldIn.setBlockAndUpdate(pos, newState);
-            onStateChanged(worldIn, pos, newState);
+            PipeBlock.onStateChanged(worldIn, pos, newState);
         }
     }
 
@@ -133,17 +133,17 @@ public class PipeBlock extends BaseEntityBlock {
 
     @Override
     public void setPlacedBy(Level worldIn, BlockPos pos, BlockState state, @Nullable LivingEntity placer, ItemStack stack) {
-        onStateChanged(worldIn, pos, state);
+        PipeBlock.onStateChanged(worldIn, pos, state);
     }
 
     @Override
     public VoxelShape getShape(BlockState state, BlockGetter worldIn, BlockPos pos, CollisionContext context) {
-        return this.cacheAndGetShape(state, worldIn, pos, s -> s.getShape(worldIn, pos, context), SHAPE_CACHE, null);
+        return this.cacheAndGetShape(state, worldIn, pos, s -> s.getShape(worldIn, pos, context), PipeBlock.SHAPE_CACHE, null);
     }
 
     @Override
     public VoxelShape getCollisionShape(BlockState state, BlockGetter worldIn, BlockPos pos, CollisionContext context) {
-        return this.cacheAndGetShape(state, worldIn, pos, s -> s.getCollisionShape(worldIn, pos, context), COLL_SHAPE_CACHE, s -> {
+        return this.cacheAndGetShape(state, worldIn, pos, s -> s.getCollisionShape(worldIn, pos, context), PipeBlock.COLL_SHAPE_CACHE, s -> {
             // make the shape a bit higher so we can jump up onto a higher block
             var newShape = new MutableObject<VoxelShape>(Shapes.empty());
             s.forAllBoxes((x1, y1, z1, x2, y2, z2) -> newShape.setValue(Shapes.join(Shapes.create(x1, y1, z1, x2, y2 + 3 / 16F, z2), newShape.getValue(), BooleanOp.OR)));
@@ -166,10 +166,10 @@ public class PipeBlock extends BaseEntityBlock {
         var key = Pair.of(state, cover);
         var shape = cache.get(key);
         if (shape == null) {
-            shape = CENTER_SHAPE;
-            for (var entry : DIRECTIONS.entrySet()) {
+            shape = PipeBlock.CENTER_SHAPE;
+            for (var entry : PipeBlock.DIRECTIONS.entrySet()) {
                 if (state.getValue(entry.getValue()).isConnected())
-                    shape = Shapes.or(shape, DIR_SHAPES.get(entry.getKey()));
+                    shape = Shapes.or(shape, PipeBlock.DIR_SHAPES.get(entry.getKey()));
             }
             if (shapeModifier != null)
                 shape = shapeModifier.apply(shape);
@@ -187,7 +187,7 @@ public class PipeBlock extends BaseEntityBlock {
             state = state.setValue(BlockStateProperties.WATERLOGGED, true);
 
         for (var dir : Direction.values()) {
-            var prop = DIRECTIONS.get(dir);
+            var prop = PipeBlock.DIRECTIONS.get(dir);
             var type = this.getConnectionType(world, pos, dir, state);
             // don't reconnect on blocked faces
             if (type.isConnected() && curr.getValue(prop) == ConnectionType.BLOCKED)
@@ -215,8 +215,8 @@ public class PipeBlock extends BaseEntityBlock {
         if (blockHandler != null)
             return ConnectionType.CONNECTED;
         var offState = world.getBlockState(offset);
-        if (hasLegsTo(world, offState, offset, direction)) {
-            if (DIRECTIONS.values().stream().noneMatch(d -> state.getValue(d) == ConnectionType.LEGS))
+        if (PipeBlock.hasLegsTo(world, offState, offset, direction)) {
+            if (PipeBlock.DIRECTIONS.values().stream().noneMatch(d -> state.getValue(d) == ConnectionType.LEGS))
                 return ConnectionType.LEGS;
         }
         return ConnectionType.DISCONNECTED;
@@ -226,7 +226,7 @@ public class PipeBlock extends BaseEntityBlock {
         if (state.getBlock() instanceof WallBlock || state.getBlock() instanceof FenceBlock)
             return direction == Direction.DOWN;
         if (state.getMaterial() == Material.STONE || state.getMaterial() == Material.METAL)
-            return canSupportCenter(world, pos, direction.getOpposite());
+            return Block.canSupportCenter(world, pos, direction.getOpposite());
         return false;
     }
 
@@ -240,7 +240,7 @@ public class PipeBlock extends BaseEntityBlock {
         var connections = 0;
         var force = false;
         for (var dir : Direction.values()) {
-            var value = newState.getValue(DIRECTIONS.get(dir));
+            var value = newState.getValue(PipeBlock.DIRECTIONS.get(dir));
             if (!value.isConnected())
                 continue;
             connections++;
@@ -271,7 +271,7 @@ public class PipeBlock extends BaseEntityBlock {
 
     @Override
     public void playerWillDestroy(Level worldIn, BlockPos pos, BlockState state, Player player) {
-        dropItems(worldIn, pos, player);
+        PipeBlock.dropItems(worldIn, pos, player);
         super.playerWillDestroy(worldIn, pos, state, player);
     }
 
@@ -302,7 +302,7 @@ public class PipeBlock extends BaseEntityBlock {
     @org.jetbrains.annotations.Nullable
     @Override
     public <T extends BlockEntity> BlockEntityTicker<T> getTicker(Level level, BlockState state, BlockEntityType<T> type) {
-        return createTickerHelper(type, Registry.pipeBlockEntity, PipeBlockEntity::tick);
+        return BaseEntityBlock.createTickerHelper(type, Registry.pipeBlockEntity, PipeBlockEntity::tick);
     }
 
     public static void dropItems(Level worldIn, BlockPos pos, Player player) {

src/main/java/de/ellpeck/prettypipes/pipe/PipeBlockEntity.java

@@ -186,65 +186,68 @@ public class PipeBlockEntity extends BlockEntity implements MenuProvider, IPipeC
     }
 
     public Pair<BlockPos, ItemStack> getAvailableDestination(ItemStack stack, boolean force, boolean preventOversending) {
-        if (!this.canWork())
-            return null;
-        if (!force && this.streamModules().anyMatch(m -> !m.getRight().canAcceptItem(m.getLeft(), this, stack)))
-            return null;
         for (var dir : Direction.values()) {
-            var handler = this.getItemHandler(dir);
-            if (handler == null)
-                continue;
-            var remain = ItemHandlerHelper.insertItem(handler, stack, true);
-            // did we insert anything?
-            if (remain.getCount() == stack.getCount())
-                continue;
-            var toInsert = stack.copy();
-            toInsert.shrink(remain.getCount());
-            // limit to the max amount that modules allow us to insert
-            var maxAmount = this.streamModules().mapToInt(m -> m.getRight().getMaxInsertionAmount(m.getLeft(), this, stack, handler)).min().orElse(Integer.MAX_VALUE);
-            if (maxAmount < toInsert.getCount())
-                toInsert.setCount(maxAmount);
-            var offset = this.worldPosition.relative(dir);
-            if (preventOversending || maxAmount < Integer.MAX_VALUE) {
-                var network = PipeNetwork.get(this.level);
-                // these are the items that are currently in the pipes, going to this inventory
-                var onTheWay = network.getItemsOnTheWay(offset, null);
-                if (onTheWay > 0) {
-                    if (maxAmount < Integer.MAX_VALUE) {
-                        // these are the items on the way, limited to items of the same type as stack
-                        var onTheWaySame = network.getItemsOnTheWay(offset, stack);
-                        // check if any modules are limiting us
-                        if (toInsert.getCount() + onTheWaySame > maxAmount)
-                            toInsert.setCount(maxAmount - onTheWaySame);
-                    }
-                    // totalSpace will be the amount of items that fit into the attached container
-                    var totalSpace = 0;
-                    for (var i = 0; i < handler.getSlots(); i++) {
-                        var copy = stack.copy();
-                        var maxStackSize = copy.getMaxStackSize();
-                        // if the container can store more than 64 items in this slot, then it's likely
-                        // a barrel or similar, meaning that the slot limit matters more than the max stack size
-                        var limit = handler.getSlotLimit(i);
-                        if (limit > 64)
-                            maxStackSize = limit;
-                        copy.setCount(maxStackSize);
-                        // this is an inaccurate check since it ignores the fact that some slots might
-                        // have space for items of other types, but it'll be good enough for us
-                        var left = handler.insertItem(i, copy, true);
-                        totalSpace += maxStackSize - left.getCount();
-                    }
-                    // if the items on the way plus the items we're trying to move are too much, reduce
-                    if (onTheWay + toInsert.getCount() > totalSpace)
-                        toInsert.setCount(totalSpace - onTheWay);
-                }
-            }
-            // we return the item that can actually be inserted, NOT the remainder!
-            if (!toInsert.isEmpty())
-                return Pair.of(offset, toInsert);
+            var dest = this.getAvailableDestination(dir, stack, force, preventOversending);
+            if (!dest.isEmpty())
+                return Pair.of(this.worldPosition.relative(dir), dest);
         }
         return null;
     }
 
+    public ItemStack getAvailableDestination(Direction direction, ItemStack stack, boolean force, boolean preventOversending) {
+        if (!this.canWork())
+            return ItemStack.EMPTY;
+        var handler = this.getItemHandler(direction);
+        if (handler == null || !force && this.streamModules().anyMatch(m -> !m.getRight().canAcceptItem(m.getLeft(), this, stack, direction, handler)))
+            return ItemStack.EMPTY;
+        var remain = ItemHandlerHelper.insertItem(handler, stack, true);
+        // did we insert anything?
+        if (remain.getCount() == stack.getCount())
+            return ItemStack.EMPTY;
+        var toInsert = stack.copy();
+        toInsert.shrink(remain.getCount());
+        // limit to the max amount that modules allow us to insert
+        var maxAmount = this.streamModules().mapToInt(m -> m.getRight().getMaxInsertionAmount(m.getLeft(), this, stack, handler)).min().orElse(Integer.MAX_VALUE);
+        if (maxAmount < toInsert.getCount())
+            toInsert.setCount(maxAmount);
+        var offset = this.worldPosition.relative(direction);
+        if (preventOversending || maxAmount < Integer.MAX_VALUE) {
+            var network = PipeNetwork.get(this.level);
+            // these are the items that are currently in the pipes, going to this inventory
+            var onTheWay = network.getItemsOnTheWay(offset, null);
+            if (onTheWay > 0) {
+                if (maxAmount < Integer.MAX_VALUE) {
+                    // these are the items on the way, limited to items of the same type as stack
+                    var onTheWaySame = network.getItemsOnTheWay(offset, stack);
+                    // check if any modules are limiting us
+                    if (toInsert.getCount() + onTheWaySame > maxAmount)
+                        toInsert.setCount(maxAmount - onTheWaySame);
+                }
+                // totalSpace will be the amount of items that fit into the attached container
+                var totalSpace = 0;
+                for (var i = 0; i < handler.getSlots(); i++) {
+                    var copy = stack.copy();
+                    var maxStackSize = copy.getMaxStackSize();
+                    // if the container can store more than 64 items in this slot, then it's likely
+                    // a barrel or similar, meaning that the slot limit matters more than the max stack size
+                    var limit = handler.getSlotLimit(i);
+                    if (limit > 64)
+                        maxStackSize = limit;
+                    copy.setCount(maxStackSize);
+                    // this is an inaccurate check since it ignores the fact that some slots might
+                    // have space for items of other types, but it'll be good enough for us
+                    var left = handler.insertItem(i, copy, true);
+                    totalSpace += maxStackSize - left.getCount();
+                }
+                // if the items on the way plus the items we're trying to move are too much, reduce
+                if (onTheWay + toInsert.getCount() > totalSpace)
+                    toInsert.setCount(totalSpace - onTheWay);
+            }
+        }
+        // we return the item that can actually be inserted, NOT the remainder!
+        return toInsert;
+    }
+
     public int getPriority() {
         return this.priority;
     }
@@ -315,13 +318,9 @@ public class PipeBlockEntity extends BlockEntity implements MenuProvider, IPipeC
         return null;
     }
 
-    public boolean isConnectedInventory(Direction dir) {
-        return this.getItemHandler(dir) != null;
-    }
-
     public boolean canHaveModules() {
         for (var dir : Direction.values()) {
-            if (this.isConnectedInventory(dir))
+            if (this.getItemHandler(dir) != null)
                 return true;
             var connectable = this.getPipeConnectable(dir);
             if (connectable != null && connectable.allowsModules(this.worldPosition, dir))
@@ -330,8 +329,8 @@ public class PipeBlockEntity extends BlockEntity implements MenuProvider, IPipeC
         return false;
     }
 
-    public boolean canNetworkSee() {
-        return this.streamModules().allMatch(m -> m.getRight().canNetworkSee(m.getLeft(), this));
+    public boolean canNetworkSee(Direction direction, IItemHandler handler) {
+        return this.streamModules().allMatch(m -> m.getRight().canNetworkSee(m.getLeft(), this, direction, handler));
     }
 
     public Stream<Pair<ItemStack, IModule>> streamModules() {

src/main/java/de/ellpeck/prettypipes/pipe/containers/AbstractPipeGui.java

@@ -79,7 +79,7 @@ public abstract class AbstractPipeGui<T extends AbstractPipeContainer<?>> extend
     @Override
     protected void renderBg(PoseStack matrix, float partialTicks, int mouseX, int mouseY) {
         RenderSystem.setShader(GameRenderer::getPositionTexShader);
-        RenderSystem.setShaderTexture(0, TEXTURE);
+        RenderSystem.setShaderTexture(0, AbstractPipeGui.TEXTURE);
         this.blit(matrix, this.leftPos, this.topPos + 32, 0, 0, 176, 171);
 
         for (var tab : this.tabs)
@@ -143,7 +143,7 @@ public abstract class AbstractPipeGui<T extends AbstractPipeContainer<?>> extend
 
             AbstractPipeGui.this.itemRenderer.renderGuiItem(this.moduleStack, this.x + 6, this.y + itemOffset);
             RenderSystem.setShader(GameRenderer::getPositionTexShader);
-            RenderSystem.setShaderTexture(0, TEXTURE);
+            RenderSystem.setShaderTexture(0, AbstractPipeGui.TEXTURE);
         }
 
         private void drawForeground(PoseStack matrix, int mouseX, int mouseY) {

src/main/java/de/ellpeck/prettypipes/pipe/modules/craft/CraftingModuleGui.java

@@ -17,7 +17,7 @@ public class CraftingModuleGui extends AbstractPipeGui<CraftingModuleContainer>
     protected void renderBg(PoseStack matrix, float partialTicks, int mouseX, int mouseY) {
         super.renderBg(matrix, partialTicks, mouseX, mouseY);
         RenderSystem.setShader(GameRenderer::getPositionTexShader);
-        RenderSystem.setShaderTexture(0, TEXTURE);
+        RenderSystem.setShaderTexture(0, AbstractPipeGui.TEXTURE);
         this.blit(matrix, this.leftPos + 176 / 2 - 16 / 2, this.topPos + 32 + 18 * 2, 176, 80, 16, 16);
     }
 }

src/main/java/de/ellpeck/prettypipes/pipe/modules/craft/CraftingModuleItem.java

@@ -13,10 +13,12 @@ import de.ellpeck.prettypipes.pipe.containers.AbstractPipeContainer;
 import de.ellpeck.prettypipes.terminal.CraftingTerminalBlockEntity;
 import de.ellpeck.prettypipes.terminal.ItemTerminalBlockEntity;
 import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
 import net.minecraft.util.Mth;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
+import net.minecraftforge.items.IItemHandler;
 import net.minecraftforge.items.ItemStackHandler;
 import org.apache.commons.lang3.tuple.Pair;
 
@@ -54,12 +56,12 @@ public class CraftingModuleItem extends ModuleItem {
     }
 
     @Override
-    public boolean canNetworkSee(ItemStack module, PipeBlockEntity tile) {
+    public boolean canNetworkSee(ItemStack module, PipeBlockEntity tile, Direction direction, IItemHandler handler) {
         return false;
     }
 
     @Override
-    public boolean canAcceptItem(ItemStack module, PipeBlockEntity tile, ItemStack stack) {
+    public boolean canAcceptItem(ItemStack module, PipeBlockEntity tile, ItemStack stack, Direction direction, IItemHandler destination) {
         return false;
     }
 
@@ -147,7 +149,7 @@ public class CraftingModuleItem extends ModuleItem {
             var out = output.getStackInSlot(i);
             if (!out.isEmpty() && ItemEquality.compareItems(out, stack, equalityTypes)) {
                 // figure out how many crafting operations we can actually do with the input items we have in the network
-                var availableCrafts = CraftingTerminalBlockEntity.getAvailableCrafts(tile, input.getSlots(), input::getStackInSlot, k -> true, s -> items, unavailableConsumer, addDependency(dependencyChain, module), equalityTypes);
+                var availableCrafts = CraftingTerminalBlockEntity.getAvailableCrafts(tile, input.getSlots(), input::getStackInSlot, k -> true, s -> items, unavailableConsumer, CraftingModuleItem.addDependency(dependencyChain, module), equalityTypes);
                 if (availableCrafts > 0)
                     craftable += out.getCount() * availableCrafts;
             }
@@ -179,7 +181,7 @@ public class CraftingModuleItem extends ModuleItem {
                 continue;
             var copy = in.copy();
             copy.setCount(in.getCount() * toCraft);
-            var ret = ItemTerminalBlockEntity.requestItemLater(tile.getLevel(), tile.getBlockPos(), items, unavailableConsumer, copy, addDependency(dependencyChain, module), equalityTypes);
+            var ret = ItemTerminalBlockEntity.requestItemLater(tile.getLevel(), tile.getBlockPos(), items, unavailableConsumer, copy, CraftingModuleItem.addDependency(dependencyChain, module), equalityTypes);
             tile.craftIngredientRequests.addAll(ret.getLeft());
         }
 

src/main/java/de/ellpeck/prettypipes/pipe/modules/extraction/ExtractionModuleContainer.java

@@ -1,5 +1,7 @@
 package de.ellpeck.prettypipes.pipe.modules.extraction;
 
+import de.ellpeck.prettypipes.misc.DirectionSelector;
+import de.ellpeck.prettypipes.misc.DirectionSelector.IDirectionContainer;
 import de.ellpeck.prettypipes.misc.ItemFilter;
 import de.ellpeck.prettypipes.misc.ItemFilter.IFilteredContainer;
 import de.ellpeck.prettypipes.pipe.containers.AbstractPipeContainer;
@@ -9,9 +11,10 @@ import net.minecraft.world.inventory.MenuType;
 
 import javax.annotation.Nullable;
 
-public class ExtractionModuleContainer extends AbstractPipeContainer<ExtractionModuleItem> implements IFilteredContainer {
+public class ExtractionModuleContainer extends AbstractPipeContainer<ExtractionModuleItem> implements IFilteredContainer, IDirectionContainer {
 
     public ItemFilter filter;
+    public DirectionSelector directionSelector;
 
     public ExtractionModuleContainer(@Nullable MenuType<?> type, int id, Player player, BlockPos pos, int moduleIndex) {
         super(type, id, player, pos, moduleIndex);
@@ -20,6 +23,8 @@ public class ExtractionModuleContainer extends AbstractPipeContainer<ExtractionM
     @Override
     protected void addSlots() {
         this.filter = this.module.getItemFilter(this.moduleStack, this.tile);
+        this.directionSelector = this.module.getDirectionSelector(this.moduleStack, this.tile);
+
         for (var slot : this.filter.getSlots((176 - this.module.filterSlots * 18) / 2 + 1, 17 + 32))
             this.addSlot(slot);
     }
@@ -28,10 +33,16 @@ public class ExtractionModuleContainer extends AbstractPipeContainer<ExtractionM
     public void removed(Player playerIn) {
         super.removed(playerIn);
         this.filter.save();
+        this.directionSelector.save();
     }
 
     @Override
     public ItemFilter getFilter() {
         return this.filter;
     }
+
+    @Override
+    public DirectionSelector getSelector() {
+        return this.directionSelector;
+    }
 }

src/main/java/de/ellpeck/prettypipes/pipe/modules/extraction/ExtractionModuleGui.java

@@ -13,7 +13,8 @@ public class ExtractionModuleGui extends AbstractPipeGui<ExtractionModuleContain
     @Override
     protected void init() {
         super.init();
-        for (var widget : this.menu.filter.getButtons(this, this.leftPos + 7, this.topPos + 17 + 32 + 20))
+        for (var widget : this.menu.filter.getButtons(this, this.leftPos + this.imageWidth - 7, this.topPos + 17 + 32 + 20, true))
             this.addRenderableWidget(widget);
+        this.addRenderableWidget(this.menu.directionSelector.getButton(this.leftPos + 7, this.topPos + 17 + 32 + 20));
     }
 }

src/main/java/de/ellpeck/prettypipes/pipe/modules/extraction/ExtractionModuleItem.java

@@ -4,6 +4,7 @@ import de.ellpeck.prettypipes.Registry;
 import de.ellpeck.prettypipes.items.IModule;
 import de.ellpeck.prettypipes.items.ModuleItem;
 import de.ellpeck.prettypipes.items.ModuleTier;
+import de.ellpeck.prettypipes.misc.DirectionSelector;
 import de.ellpeck.prettypipes.misc.ItemFilter;
 import de.ellpeck.prettypipes.network.PipeNetwork;
 import de.ellpeck.prettypipes.pipe.PipeBlockEntity;
@@ -12,6 +13,7 @@ import net.minecraft.core.Direction;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
+import net.minecraftforge.items.IItemHandler;
 
 public class ExtractionModuleItem extends ModuleItem {
 
@@ -33,35 +35,36 @@ public class ExtractionModuleItem extends ModuleItem {
         if (!tile.shouldWorkNow(this.speed) || !tile.canWork())
             return;
         var filter = this.getItemFilter(module, tile);
+        var dir = this.getDirectionSelector(module, tile).getDirection();
+        if (dir == null)
+            return;
+        var handler = tile.getItemHandler(dir);
+        if (handler == null)
+            return;
 
         var network = PipeNetwork.get(tile.getLevel());
-        for (var dir : Direction.values()) {
-            var handler = tile.getItemHandler(dir);
-            if (handler == null)
+        for (var j = 0; j < handler.getSlots(); j++) {
+            var stack = handler.extractItem(j, this.maxExtraction, true);
+            if (stack.isEmpty())
                 continue;
-            for (var j = 0; j < handler.getSlots(); j++) {
-                var stack = handler.extractItem(j, this.maxExtraction, true);
-                if (stack.isEmpty())
-                    continue;
-                if (!filter.isAllowed(stack))
-                    continue;
-                var remain = network.routeItem(tile.getBlockPos(), tile.getBlockPos().relative(dir), stack, this.preventOversending);
-                if (remain.getCount() != stack.getCount()) {
-                    handler.extractItem(j, stack.getCount() - remain.getCount(), false);
-                    return;
-                }
+            if (!filter.isAllowed(stack))
+                continue;
+            var remain = network.routeItem(tile.getBlockPos(), tile.getBlockPos().relative(dir), stack, this.preventOversending);
+            if (remain.getCount() != stack.getCount()) {
+                handler.extractItem(j, stack.getCount() - remain.getCount(), false);
+                return;
             }
         }
     }
 
     @Override
-    public boolean canNetworkSee(ItemStack module, PipeBlockEntity tile) {
-        return false;
+    public boolean canNetworkSee(ItemStack module, PipeBlockEntity tile, Direction direction, IItemHandler handler) {
+        return direction != this.getDirectionSelector(module, tile).getDirection();
     }
 
     @Override
-    public boolean canAcceptItem(ItemStack module, PipeBlockEntity tile, ItemStack stack) {
-        return false;
+    public boolean canAcceptItem(ItemStack module, PipeBlockEntity tile, ItemStack stack, Direction direction, IItemHandler destination) {
+        return direction != this.getDirectionSelector(module, tile).getDirection();
     }
 
     @Override
@@ -83,4 +86,9 @@ public class ExtractionModuleItem extends ModuleItem {
     public ItemFilter getItemFilter(ItemStack module, PipeBlockEntity tile) {
         return new ItemFilter(this.filterSlots, module, tile);
     }
+
+    @Override
+    public DirectionSelector getDirectionSelector(ItemStack module, PipeBlockEntity tile) {
+        return new DirectionSelector(module, tile);
+    }
 }

src/main/java/de/ellpeck/prettypipes/pipe/modules/insertion/FilterModuleContainer.java

@@ -1,5 +1,7 @@
 package de.ellpeck.prettypipes.pipe.modules.insertion;
 
+import de.ellpeck.prettypipes.misc.DirectionSelector;
+import de.ellpeck.prettypipes.misc.DirectionSelector.IDirectionContainer;
 import de.ellpeck.prettypipes.misc.ItemFilter;
 import de.ellpeck.prettypipes.misc.ItemFilter.IFilteredContainer;
 import de.ellpeck.prettypipes.pipe.containers.AbstractPipeContainer;
@@ -9,9 +11,10 @@ import net.minecraft.world.inventory.MenuType;
 
 import javax.annotation.Nullable;
 
-public class FilterModuleContainer extends AbstractPipeContainer<FilterModuleItem> implements IFilteredContainer {
+public class FilterModuleContainer extends AbstractPipeContainer<FilterModuleItem> implements IFilteredContainer, IDirectionContainer {
 
     public ItemFilter filter;
+    public DirectionSelector directionSelector;
 
     public FilterModuleContainer(@Nullable MenuType<?> type, int id, Player player, BlockPos pos, int moduleIndex) {
         super(type, id, player, pos, moduleIndex);
@@ -26,6 +29,8 @@ public class FilterModuleContainer extends AbstractPipeContainer<FilterModuleIte
     @Override
     protected void addSlots() {
         this.filter = this.module.getItemFilter(this.moduleStack, this.tile);
+        this.directionSelector = this.module.getDirectionSelector(this.moduleStack, this.tile);
+
         for (var slot : this.filter.getSlots((176 - Math.min(this.module.filterSlots, 9) * 18) / 2 + 1, 17 + 32))
             this.addSlot(slot);
     }
@@ -34,10 +39,17 @@ public class FilterModuleContainer extends AbstractPipeContainer<FilterModuleIte
     public void removed(Player playerIn) {
         super.removed(playerIn);
         this.filter.save();
+        this.directionSelector.save();
     }
 
     @Override
     public ItemFilter getFilter() {
         return this.filter;
     }
+
+    @Override
+    public DirectionSelector getSelector() {
+        return this.directionSelector;
+    }
+
 }

src/main/java/de/ellpeck/prettypipes/pipe/modules/insertion/FilterModuleGui.java

@@ -1,7 +1,6 @@
 package de.ellpeck.prettypipes.pipe.modules.insertion;
 
 import de.ellpeck.prettypipes.pipe.containers.AbstractPipeGui;
-import net.minecraft.client.gui.components.AbstractWidget;
 import net.minecraft.network.chat.Component;
 import net.minecraft.util.Mth;
 import net.minecraft.world.entity.player.Inventory;
@@ -15,7 +14,9 @@ public class FilterModuleGui extends AbstractPipeGui<FilterModuleContainer> {
     @Override
     protected void init() {
         super.init();
-        for (var widget : this.menu.filter.getButtons(this, this.leftPos + 7, this.topPos + 17 + 32 + 18 * Mth.ceil(this.menu.filter.getSlots() / 9F) + 2))
+        var buttonsY = this.topPos + 17 + 32 + 18 * Mth.ceil(this.menu.filter.getSlots() / 9F) + 2;
+        for (var widget : this.menu.filter.getButtons(this, this.leftPos + this.imageWidth - 7, buttonsY, true))
             this.addRenderableWidget(widget);
+        this.addRenderableWidget(this.menu.directionSelector.getButton(this.leftPos + 7, buttonsY));
     }
 }

src/main/java/de/ellpeck/prettypipes/pipe/modules/insertion/FilterModuleItem.java

@@ -4,12 +4,15 @@ import de.ellpeck.prettypipes.Registry;
 import de.ellpeck.prettypipes.items.IModule;
 import de.ellpeck.prettypipes.items.ModuleItem;
 import de.ellpeck.prettypipes.items.ModuleTier;
+import de.ellpeck.prettypipes.misc.DirectionSelector;
 import de.ellpeck.prettypipes.misc.ItemFilter;
 import de.ellpeck.prettypipes.pipe.PipeBlockEntity;
 import de.ellpeck.prettypipes.pipe.containers.AbstractPipeContainer;
+import net.minecraft.core.Direction;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
+import net.minecraftforge.items.IItemHandler;
 
 public class FilterModuleItem extends ModuleItem {
 
@@ -23,9 +26,8 @@ public class FilterModuleItem extends ModuleItem {
     }
 
     @Override
-    public boolean canAcceptItem(ItemStack module, PipeBlockEntity tile, ItemStack stack) {
-        var filter = this.getItemFilter(module, tile);
-        return filter.isAllowed(stack);
+    public boolean canAcceptItem(ItemStack module, PipeBlockEntity tile, ItemStack stack, Direction direction, IItemHandler destination) {
+        return this.getDirectionSelector(module, tile).getDirection() != direction || this.getItemFilter(module, tile).isAllowed(stack);
     }
 
     @Override
@@ -49,4 +51,9 @@ public class FilterModuleItem extends ModuleItem {
         filter.canPopulateFromInventories = this.canPopulateFromInventories;
         return filter;
     }
+
+    @Override
+    public DirectionSelector getDirectionSelector(ItemStack module, PipeBlockEntity tile) {
+        return new DirectionSelector(module, tile);
+    }
 }

src/main/java/de/ellpeck/prettypipes/pipe/modules/modifier/FilterModifierModuleGui.java

@@ -126,7 +126,7 @@ public class FilterModifierModuleGui extends AbstractPipeGui<FilterModifierModul
                 text = ChatFormatting.BOLD + text;
             FilterModifierModuleGui.this.font.draw(matrix, text, this.x, this.y, color);
             RenderSystem.setShader(GameRenderer::getPositionTexShader);
-            RenderSystem.setShaderTexture(0, TEXTURE);
+            RenderSystem.setShaderTexture(0, AbstractPipeGui.TEXTURE);
         }
 
         private boolean onClicked(double mouseX, double mouseY, int button) {

src/main/java/de/ellpeck/prettypipes/pipe/modules/modifier/FilterModifierModuleItem.java

@@ -39,7 +39,7 @@ public class FilterModifierModuleItem extends ModuleItem {
 
     public ItemEquality getEqualityType(ItemStack stack) {
         if (this.type == ItemEquality.Type.TAG) {
-            return ItemEquality.tag(getFilterTag(stack));
+            return ItemEquality.tag(FilterModifierModuleItem.getFilterTag(stack));
         } else {
             return this.type.getDefaultInstance();
         }

src/main/java/de/ellpeck/prettypipes/pipe/modules/retrieval/RetrievalModuleContainer.java

@@ -1,18 +1,20 @@
 package de.ellpeck.prettypipes.pipe.modules.retrieval;
 
+import de.ellpeck.prettypipes.misc.DirectionSelector;
+import de.ellpeck.prettypipes.misc.DirectionSelector.IDirectionContainer;
 import de.ellpeck.prettypipes.misc.ItemFilter;
 import de.ellpeck.prettypipes.misc.ItemFilter.IFilteredContainer;
 import de.ellpeck.prettypipes.pipe.containers.AbstractPipeContainer;
 import net.minecraft.core.BlockPos;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.inventory.MenuType;
-import net.minecraft.world.inventory.Slot;
 
 import javax.annotation.Nullable;
 
-public class RetrievalModuleContainer extends AbstractPipeContainer<RetrievalModuleItem> implements IFilteredContainer {
+public class RetrievalModuleContainer extends AbstractPipeContainer<RetrievalModuleItem> implements IFilteredContainer, IDirectionContainer {
 
     public ItemFilter filter;
+    public DirectionSelector directionSelector;
 
     public RetrievalModuleContainer(@Nullable MenuType<?> type, int id, Player player, BlockPos pos, int moduleIndex) {
         super(type, id, player, pos, moduleIndex);
@@ -21,6 +23,8 @@ public class RetrievalModuleContainer extends AbstractPipeContainer<RetrievalMod
     @Override
     protected void addSlots() {
         this.filter = this.module.getItemFilter(this.moduleStack, this.tile);
+        this.directionSelector = this.module.getDirectionSelector(this.moduleStack, this.tile);
+
         for (var slot : this.filter.getSlots((176 - this.module.filterSlots * 18) / 2 + 1, 17 + 32))
             this.addSlot(slot);
     }
@@ -29,10 +33,16 @@ public class RetrievalModuleContainer extends AbstractPipeContainer<RetrievalMod
     public void removed(Player playerIn) {
         super.removed(playerIn);
         this.filter.save();
+        this.directionSelector.save();
     }
 
     @Override
     public ItemFilter getFilter() {
         return this.filter;
     }
+
+    @Override
+    public DirectionSelector getSelector() {
+        return this.directionSelector;
+    }
 }

src/main/java/de/ellpeck/prettypipes/pipe/modules/retrieval/RetrievalModuleGui.java

@@ -1,7 +1,6 @@
 package de.ellpeck.prettypipes.pipe.modules.retrieval;
 
 import de.ellpeck.prettypipes.pipe.containers.AbstractPipeGui;
-import net.minecraft.client.gui.components.AbstractWidget;
 import net.minecraft.network.chat.Component;
 import net.minecraft.world.entity.player.Inventory;
 
@@ -14,7 +13,8 @@ public class RetrievalModuleGui extends AbstractPipeGui<RetrievalModuleContainer
     @Override
     protected void init() {
         super.init();
-        for (var widget : this.menu.filter.getButtons(this, this.leftPos + 7, this.topPos + 17 + 32 + 20))
+        for (var widget : this.menu.filter.getButtons(this, this.leftPos + this.imageWidth - 7, this.topPos + 17 + 32 + 20, true))
             this.addRenderableWidget(widget);
+        this.addRenderableWidget(this.menu.directionSelector.getButton(this.leftPos + 7, this.topPos + 17 + 32 + 20));
     }
 }

src/main/java/de/ellpeck/prettypipes/pipe/modules/retrieval/RetrievalModuleItem.java

@@ -4,16 +4,16 @@ import de.ellpeck.prettypipes.Registry;
 import de.ellpeck.prettypipes.items.IModule;
 import de.ellpeck.prettypipes.items.ModuleItem;
 import de.ellpeck.prettypipes.items.ModuleTier;
-import de.ellpeck.prettypipes.misc.ItemEquality;
+import de.ellpeck.prettypipes.misc.DirectionSelector;
 import de.ellpeck.prettypipes.misc.ItemFilter;
 import de.ellpeck.prettypipes.network.PipeNetwork;
 import de.ellpeck.prettypipes.pipe.PipeBlockEntity;
 import de.ellpeck.prettypipes.pipe.containers.AbstractPipeContainer;
-import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
-import org.apache.commons.lang3.tuple.Pair;
+import net.minecraftforge.items.IItemHandler;
 
 public class RetrievalModuleItem extends ModuleItem {
 
@@ -34,8 +34,11 @@ public class RetrievalModuleItem extends ModuleItem {
     public void tick(ItemStack module, PipeBlockEntity tile) {
         if (!tile.shouldWorkNow(this.speed) || !tile.canWork())
             return;
-        var network = PipeNetwork.get(tile.getLevel());
+        var dir = this.getDirectionSelector(module, tile).getDirection();
+        if (dir == null)
+            return;
 
+        var network = PipeNetwork.get(tile.getLevel());
         var equalityTypes = ItemFilter.getEqualityTypes(tile);
         // loop through filters to see which items to pull
         for (var subFilter : tile.getFilters()) {
@@ -45,26 +48,26 @@ public class RetrievalModuleItem extends ModuleItem {
                     continue;
                 var copy = filtered.copy();
                 copy.setCount(this.maxExtraction);
-                var dest = tile.getAvailableDestination(copy, true, this.preventOversending);
-                if (dest == null)
+                var dest = tile.getAvailableDestination(dir, copy, true, this.preventOversending);
+                if (dest.isEmpty())
                     continue;
-                var remain = dest.getRight().copy();
+                var remain = dest.copy();
                 // are we already waiting for crafting results? If so, don't request those again
                 remain.shrink(network.getCurrentlyCraftingAmount(tile.getBlockPos(), copy, equalityTypes));
-                if (network.requestItem(tile.getBlockPos(), dest.getLeft(), remain, equalityTypes).isEmpty())
+                if (network.requestItem(tile.getBlockPos(), tile.getBlockPos().relative(dir), remain, equalityTypes).isEmpty())
                     break;
             }
         }
     }
 
     @Override
-    public boolean canNetworkSee(ItemStack module, PipeBlockEntity tile) {
-        return false;
+    public boolean canNetworkSee(ItemStack module, PipeBlockEntity tile, Direction direction, IItemHandler handler) {
+        return direction != this.getDirectionSelector(module, tile).getDirection();
     }
 
     @Override
-    public boolean canAcceptItem(ItemStack module, PipeBlockEntity tile, ItemStack stack) {
-        return false;
+    public boolean canAcceptItem(ItemStack module, PipeBlockEntity tile, ItemStack stack, Direction direction, IItemHandler destination) {
+        return direction != this.getDirectionSelector(module, tile).getDirection();
     }
 
     @Override
@@ -89,4 +92,9 @@ public class RetrievalModuleItem extends ModuleItem {
         filter.isWhitelist = true;
         return filter;
     }
+
+    @Override
+    public DirectionSelector getDirectionSelector(ItemStack module, PipeBlockEntity tile) {
+        return new DirectionSelector(module, tile);
+    }
 }

src/main/java/de/ellpeck/prettypipes/pipe/modules/stacksize/StackSizeModuleItem.java

@@ -43,8 +43,8 @@ public class StackSizeModuleItem extends ModuleItem {
 
     @Override
     public int getMaxInsertionAmount(ItemStack module, PipeBlockEntity tile, ItemStack stack, IItemHandler destination) {
-        var max = getMaxStackSize(module);
-        if (getLimitToMaxStackSize(module))
+        var max = StackSizeModuleItem.getMaxStackSize(module);
+        if (StackSizeModuleItem.getLimitToMaxStackSize(module))
             max = Math.min(max, stack.getMaxStackSize());
         var amount = 0;
         for (var i = 0; i < destination.getSlots(); i++) {

src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerBlock.java

@@ -63,7 +63,7 @@ public class PressurizerBlock extends BaseEntityBlock {
     @org.jetbrains.annotations.Nullable
     @Override
     public <T extends BlockEntity> BlockEntityTicker<T> getTicker(Level level, BlockState state, BlockEntityType<T> type) {
-        return level.isClientSide ? null : createTickerHelper(type, Registry.pressurizerBlockEntity, PressurizerBlockEntity::tick);
+        return level.isClientSide ? null : BaseEntityBlock.createTickerHelper(type, Registry.pressurizerBlockEntity, PressurizerBlockEntity::tick);
     }
 
     @Override

src/main/java/de/ellpeck/prettypipes/pressurizer/PressurizerGui.java

@@ -38,7 +38,7 @@ public class PressurizerGui extends AbstractContainerScreen<PressurizerContainer
     @Override
     protected void renderBg(PoseStack matrixStack, float partialTicks, int x, int y) {
         RenderSystem.setShader(GameRenderer::getPositionTexShader);
-        RenderSystem.setShaderTexture(0, TEXTURE);
+        RenderSystem.setShaderTexture(0, PressurizerGui.TEXTURE);
         this.blit(matrixStack, this.leftPos, this.topPos, 0, 0, 176, 137);
         var energy = (int) (this.menu.tile.getEnergyPercentage() * 124);
         this.blit(matrixStack, this.leftPos + 26, this.topPos + 22, 0, 137, energy, 12);

src/main/java/de/ellpeck/prettypipes/terminal/CraftingTerminalBlock.java

@@ -3,6 +3,7 @@ package de.ellpeck.prettypipes.terminal;
 import de.ellpeck.prettypipes.Registry;
 import net.minecraft.core.BlockPos;
 import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.BaseEntityBlock;
 import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraft.world.level.block.entity.BlockEntityTicker;
 import net.minecraft.world.level.block.entity.BlockEntityType;
@@ -18,6 +19,6 @@ public class CraftingTerminalBlock extends ItemTerminalBlock {
     @org.jetbrains.annotations.Nullable
     @Override
     public <T extends BlockEntity> BlockEntityTicker<T> getTicker(Level level, BlockState state, BlockEntityType<T> type) {
-        return createTickerHelper(type, Registry.craftingTerminalBlockEntity, ItemTerminalBlockEntity::tick);
+        return BaseEntityBlock.createTickerHelper(type, Registry.craftingTerminalBlockEntity, ItemTerminalBlockEntity::tick);
     }
 }

src/main/java/de/ellpeck/prettypipes/terminal/CraftingTerminalBlockEntity.java

@@ -111,10 +111,10 @@ public class CraftingTerminalBlockEntity extends ItemTerminalBlockEntity {
         network.startProfile("terminal_request_crafting");
         this.updateItems();
         // get the amount of crafts that we can do
-        var lowestAvailable = getAvailableCrafts(pipe, this.craftItems.getSlots(), i -> ItemHandlerHelper.copyStackWithSize(this.getRequestedCraftItem(i), 1), this::isGhostItem, s -> {
+        var lowestAvailable = CraftingTerminalBlockEntity.getAvailableCrafts(pipe, this.craftItems.getSlots(), i -> ItemHandlerHelper.copyStackWithSize(this.getRequestedCraftItem(i), 1), this::isGhostItem, s -> {
             var item = this.networkItems.get(s);
             return item != null ? item.getLocations() : Collections.emptyList();
-        }, onItemUnavailable(player, force), new Stack<>(), ItemEquality.NBT);
+        }, ItemTerminalBlockEntity.onItemUnavailable(player, force), new Stack<>(), ItemEquality.NBT);
         // if we're forcing, just pretend we have one available
         if (lowestAvailable <= 0 && force)
             lowestAvailable = maxAmount;
@@ -128,7 +128,7 @@ public class CraftingTerminalBlockEntity extends ItemTerminalBlockEntity {
                     continue;
                 requested = requested.copy();
                 requested.setCount(lowestAvailable);
-                this.requestItemImpl(requested, onItemUnavailable(player, force));
+                this.requestItemImpl(requested, ItemTerminalBlockEntity.onItemUnavailable(player, force));
             }
             player.sendMessage(new TranslatableComponent("info." + PrettyPipes.ID + ".sending_ingredients", lowestAvailable).setStyle(Style.EMPTY.applyFormat(ChatFormatting.GREEN)), UUID.randomUUID());
         } else {

src/main/java/de/ellpeck/prettypipes/terminal/ItemTerminalBlock.java

@@ -82,7 +82,7 @@ public class ItemTerminalBlock extends BaseEntityBlock {
     @org.jetbrains.annotations.Nullable
     @Override
     public <T extends BlockEntity> BlockEntityTicker<T> getTicker(Level level, BlockState state, BlockEntityType<T> type) {
-        return createTickerHelper(type, Registry.itemTerminalBlockEntity, ItemTerminalBlockEntity::tick);
+        return BaseEntityBlock.createTickerHelper(type, Registry.itemTerminalBlockEntity, ItemTerminalBlockEntity::tick);
     }
 
 }

src/main/java/de/ellpeck/prettypipes/terminal/ItemTerminalBlockEntity.java

@@ -163,11 +163,11 @@ public class ItemTerminalBlockEntity extends BlockEntity implements IPipeConnect
                     .filter(s -> ItemEquality.compareItems(s, filter) && s.hasTag() && s.getTag().hashCode() == nbtHash)
                     .findFirst().orElse(filter);
         }
-        var requested = this.requestItemImpl(stack, onItemUnavailable(player, false));
+        var requested = this.requestItemImpl(stack, ItemTerminalBlockEntity.onItemUnavailable(player, false));
         if (requested > 0) {
             player.sendMessage(new TranslatableComponent("info." + PrettyPipes.ID + ".sending", requested, stack.getHoverName()).setStyle(Style.EMPTY.applyFormat(ChatFormatting.GREEN)), UUID.randomUUID());
         } else {
-            onItemUnavailable(player, false).accept(stack);
+            ItemTerminalBlockEntity.onItemUnavailable(player, false).accept(stack);
         }
         network.endProfile();
     }
@@ -175,7 +175,7 @@ public class ItemTerminalBlockEntity extends BlockEntity implements IPipeConnect
     public int requestItemImpl(ItemStack stack, Consumer<ItemStack> unavailableConsumer) {
         var item = this.networkItems.get(new EquatableItemStack(stack, ItemEquality.NBT));
         Collection<NetworkLocation> locations = item == null ? Collections.emptyList() : item.getLocations();
-        var ret = requestItemLater(this.level, this.getConnectedPipe().getBlockPos(), locations, unavailableConsumer, stack, new Stack<>(), ItemEquality.NBT);
+        var ret = ItemTerminalBlockEntity.requestItemLater(this.level, this.getConnectedPipe().getBlockPos(), locations, unavailableConsumer, stack, new Stack<>(), ItemEquality.NBT);
         this.existingRequests.addAll(ret.getLeft());
         return stack.getCount() - ret.getRight().getCount();
     }

src/main/java/de/ellpeck/prettypipes/terminal/containers/CraftingTerminalGui.java

@@ -6,6 +6,7 @@ import de.ellpeck.prettypipes.PrettyPipes;
 import de.ellpeck.prettypipes.packets.PacketButton;
 import de.ellpeck.prettypipes.packets.PacketHandler;
 import net.minecraft.client.gui.components.Button;
+import net.minecraft.client.gui.screens.Screen;
 import net.minecraft.network.chat.Component;
 import net.minecraft.network.chat.TranslatableComponent;
 import net.minecraft.resources.ResourceLocation;
@@ -25,9 +26,9 @@ public class CraftingTerminalGui extends ItemTerminalGui {
     protected void init() {
         super.init();
         this.requestButton = this.addRenderableWidget(new Button(this.leftPos + 8, this.topPos + 100, 50, 20, new TranslatableComponent("info." + PrettyPipes.ID + ".request"), button -> {
-            var amount = requestModifier();
+            var amount = ItemTerminalGui.requestModifier();
             // also allow holding backspace instead of alt for people whose alt key is inaccessible (linux?)
-            var force = hasAltDown() || InputConstants.isKeyDown(this.minecraft.getWindow().getWindow(), 259) ? 1 : 0;
+            var force = Screen.hasAltDown() || InputConstants.isKeyDown(this.minecraft.getWindow().getWindow(), 259) ? 1 : 0;
             PacketHandler.sendToServer(new PacketButton(this.menu.tile.getBlockPos(), PacketButton.ButtonResult.CRAFT_TERMINAL_REQUEST, amount, force));
         }));
         this.tick();
@@ -70,7 +71,7 @@ public class CraftingTerminalGui extends ItemTerminalGui {
 
     @Override
     protected ResourceLocation getTexture() {
-        return TEXTURE;
+        return CraftingTerminalGui.TEXTURE;
     }
 
     @Override

src/main/java/de/ellpeck/prettypipes/terminal/containers/ItemTerminalGui.java

@@ -15,6 +15,7 @@ import net.minecraft.client.gui.components.EditBox;
 import net.minecraft.client.gui.components.Widget;
 import net.minecraft.client.gui.components.events.GuiEventListener;
 import net.minecraft.client.gui.narration.NarratableEntry;
+import net.minecraft.client.gui.screens.Screen;
 import net.minecraft.client.gui.screens.inventory.AbstractContainerScreen;
 import net.minecraft.client.renderer.GameRenderer;
 import net.minecraft.client.resources.language.I18n;
@@ -72,7 +73,7 @@ public class ItemTerminalGui extends AbstractContainerScreen<ItemTerminalContain
             this.updateWidgets();
 
         this.plusButton = this.addRenderableWidget(new Button(this.leftPos + this.getXOffset() + 95 - 7 + 12, this.topPos + 103, 12, 12, new TextComponent("+"), button -> {
-            var modifier = requestModifier();
+            var modifier = ItemTerminalGui.requestModifier();
             if (modifier > 1 && this.requestAmount == 1) {
                 this.requestAmount = modifier;
             } else {
@@ -83,7 +84,7 @@ public class ItemTerminalGui extends AbstractContainerScreen<ItemTerminalContain
                 this.requestAmount = 384;
         }));
         this.minusButton = this.addRenderableWidget(new Button(this.leftPos + this.getXOffset() + 95 - 7 - 24, this.topPos + 103, 12, 12, new TextComponent("-"), button -> {
-            this.requestAmount -= requestModifier();
+            this.requestAmount -= ItemTerminalGui.requestModifier();
             if (this.requestAmount < 1)
                 this.requestAmount = 1;
         }));
@@ -325,7 +326,7 @@ public class ItemTerminalGui extends AbstractContainerScreen<ItemTerminalContain
         this.hoveredCrafting = ItemStack.EMPTY;
         if (this.currentlyCrafting != null && !this.currentlyCrafting.isEmpty()) {
             RenderSystem.setShader(GameRenderer::getPositionTexShader);
-            RenderSystem.setShaderTexture(0, TEXTURE);
+            RenderSystem.setShaderTexture(0, ItemTerminalGui.TEXTURE);
             this.blit(matrix, this.leftPos + this.imageWidth, this.topPos + 4, 191, 0, 65, 89);
 
             var x = 0;
@@ -349,7 +350,7 @@ public class ItemTerminalGui extends AbstractContainerScreen<ItemTerminalContain
     }
 
     protected ResourceLocation getTexture() {
-        return TEXTURE;
+        return ItemTerminalGui.TEXTURE;
     }
 
     @Override
@@ -377,9 +378,9 @@ public class ItemTerminalGui extends AbstractContainerScreen<ItemTerminalContain
     }
 
     public static int requestModifier() {
-        if (hasControlDown()) {
+        if (Screen.hasControlDown()) {
             return 10;
-        } else if (hasShiftDown()) {
+        } else if (Screen.hasShiftDown()) {
             return 64;
         } else {
             return 1;

src/main/resources/assets/prettypipes/lang/en_us.json

@@ -62,11 +62,13 @@
     "container.prettypipes.item_terminal": "Item Terminal",
     "container.prettypipes.crafting_terminal": "Crafting Terminal",
     "container.prettypipes.pressurizer": "Pipe Pressurizer",
-    "info.prettypipes.whitelist": "Allowed",
-    "info.prettypipes.blacklist": "Disallowed",
+    "info.prettypipes.whitelist": "\u00A72A",
+    "info.prettypipes.blacklist": "\u00A74D",
+    "info.prettypipes.whitelist.description": "Items in filter slots are allowed",
+    "info.prettypipes.blacklist.description": "Items in filter slots are disallowed",
     "info.prettypipes.shift": "Hold Shift for info",
-    "info.prettypipes.populate": "Populate",
-    "info.prettypipes.populate.description": "Filters items from adjacent inventories",
+    "info.prettypipes.populate": "P",
+    "info.prettypipes.populate.description": "Populate filter slots with items from adjacent inventories",
     "info.prettypipes.max_stack_size": "Maximum item amount",
     "info.prettypipes.limit_to_max_on": "Limit to one stack",
     "info.prettypipes.limit_to_max_off": "Don't limit to one stack",
@@ -88,5 +90,12 @@
     "info.prettypipes.cancel_all": "Cancel",
     "info.prettypipes.cancel_all.desc": "Stops waiting for current crafting outputs\nDoesn't remove inputs from blocks",
     "info.prettypipes.no_pipe_connected": "The terminal needs to be connected to a pipe network",
-    "info.prettypipes.too_many_pipes_connected": "The terminal can only be connected to a single pipe at a time"
+    "info.prettypipes.too_many_pipes_connected": "The terminal can only be connected to a single pipe at a time",
+    "dir.prettypipes.up": "Up",
+    "dir.prettypipes.down": "Down",
+    "dir.prettypipes.north": "North",
+    "dir.prettypipes.east": "East",
+    "dir.prettypipes.south": "South",
+    "dir.prettypipes.west": "West",
+    "dir.prettypipes.none": "No Side Valid"
 }