Merge branch '1.14-dev' into 1.14

40 files changed, 437 insertions, 159 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 66a4b2643..76669a938 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,15 +1,20 @@
 View full changelog [here](https://github.com/shedaniel/RoughlyEnoughItems/blob/1.14/CHANGELOG.md).
-## v2.9-beta+build.109 (BETA)
+## v2.9+build.110
+- Fixed: Build 109 Crash
+- Fixed: Next Page / Previous Page crash in villager recipe mode
+- Added: Scrolling in villager recipe mode
+- Added: New bad javadoc: https://shedaniel.me/RoughlyEnoughItems/
+#### v2.9-beta+build.109 (BETA)
 - Fixed [#92](https://github.com/shedaniel/RoughlyEnoughItems/issues/92): Make REI Buttons use an extra sheet
 - Adds: Support for `{item_name}` in cheating items for getting the path of the item identifier
-## v2.9-beta+build.108 (BETA)
+#### v2.9-beta+build.108 (BETA)
 - Fixed [#88](https://github.com/shedaniel/RoughlyEnoughItems/issues/88): Stupid Item Search
-## v2.9-beta+build.107 (BETA)
+#### v2.9-beta+build.107 (BETA)
 - Fixed: Crashing when clicking tabs
 - Added: Buttons to switch category page
 - Fixed: NullPointerException by geniii
 - Fixed [#58](https://github.com/shedaniel/RoughlyEnoughItems/issues/58): Keybinds (e.g. O, R, U) working even a search field is focused
-## v2.9-beta+build.106 (BETA)
+#### v2.9-beta+build.106 (BETA)
 - Using: [HammerLib](https://minecraft.curseforge.com/projects/hammer-lib) as a simple opengl scissors api
 - New: Mod Name of category new shows in category tooltips
 - New: Renderer API
diff --git a/build.gradle b/build.gradle
index 66ca0e783..8f283b91d 100755
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 import net.fabricmc.loom.task.RemapJar
 
 plugins {
-    id 'fabric-loom' version '0.2.1-SNAPSHOT'
+    id 'fabric-loom' version '0.2.2-SNAPSHOT'
     id "com.github.johnrengelman.shadow" version "4.0.3"
 }
 
@@ -51,20 +51,20 @@ dependencies {
     mappings "net.fabricmc:yarn:${project.yarn_version}"
     modCompile "net.fabricmc:fabric-loader:${project.fabricloader_version}"
 //    modCompile "net.fabricmc:fabric:${project.fabric_version}"
-    modCompile "net.fabricmc.fabric-api:fabric-keybindings:${project.fabric_keybindings}"
-    modCompile "net.fabricmc.fabric-api:fabric-lib:${project.fabric_lib}"
-    modCompile "net.fabricmc.fabric-api:fabric-networking:${project.fabric_networking}"
-    modCompile "net.fabricmc.fabric-api:fabric-events-lifecycle:${project.fabric_events_lifecycle}"
-    modCompile "net.fabricmc.fabric-api:fabric-resource-loader:${project.fabric_resource_loader}"
+    modCompile "net.fabricmc.fabric-api:fabric-keybindings-v0:${project.fabric_keybindings}"
+    modCompile "net.fabricmc.fabric-api:fabric-api-base:${project.fabric_api_base}"
+    modCompile "net.fabricmc.fabric-api:fabric-networking-v0:${project.fabric_networking}"
+    modCompile "net.fabricmc.fabric-api:fabric-events-lifecycle-v0:${project.fabric_events_lifecycle}"
+    modCompile "net.fabricmc.fabric-api:fabric-resource-loader-v0:${project.fabric_resource_loader}"
     modCompile "cloth:ClothEvents:${cloth_events_version}"
     modCompile "cloth-config:ClothConfig:${cloth_config_version}"
     if (includeDep) {
-//        include "net.fabricmc:fabric:${project.fabric_version}"
-        include "net.fabricmc.fabric-api:fabric-keybindings:${project.fabric_keybindings}"
-        include "net.fabricmc.fabric-api:fabric-lib:${project.fabric_lib}"
-        include "net.fabricmc.fabric-api:fabric-networking:${project.fabric_networking}"
-        include "net.fabricmc.fabric-api:fabric-events-lifecycle:${project.fabric_events_lifecycle}"
-        include "net.fabricmc.fabric-api:fabric-resource-loader:${project.fabric_resource_loader}"
+        include "net.fabricmc:fabric:${project.fabric_version}"
+//        include "net.fabricmc.fabric-api:fabric-keybindings-v0:${project.fabric_keybindings}"
+//        include "net.fabricmc.fabric-api:fabric-api-base:${project.fabric_api_base}"
+//        include "net.fabricmc.fabric-api:fabric-networking-v0:${project.fabric_networking}"
+//        include "net.fabricmc.fabric-api:fabric-events-lifecycle-v0:${project.fabric_events_lifecycle}"
+//        include "net.fabricmc.fabric-api:fabric-resource-loader-v0:${project.fabric_resource_loader}"
         include "cloth:ClothEvents:${cloth_events_version}"
         include "cloth-config:ClothConfig:${cloth_config_version}"
     }
diff --git a/gradle.properties b/gradle.properties
index ab4d7e811..beeb1a445 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,6 +1,6 @@
-mod_version=2.9-beta+build.109
+mod_version=2.9+build.110
 minecraft_version=1.14
-yarn_version=1.14+build.5
+yarn_version=1.14+build.21
 fabricloader_version=0.4.6+build.141
 jankson_version=1.1.0
 cloth_events_version=0.3.1.23
@@ -8,8 +8,8 @@ cloth_config_version=0.2.1.14
 modmenu_version=1.4.0-71
 fabric_version=0.2.7+build.127
 
-fabric_keybindings=0.1.0+93af775a
-fabric_lib=0.1.0+93af775a
-fabric_networking=0.1.0+93af775a
-fabric_events_lifecycle=0.1.0+93af775a
-fabric_resource_loader=0.1.0+93af775a
+fabric_keybindings=0.1.0+f1618918
+fabric_networking=0.1.0+f1618918
+fabric_events_lifecycle=0.1.0+9232ac87
+fabric_resource_loader=0.1.0+f1618918
+fabric_api_base=0.1.0+f1618918
diff --git a/src/main/java/me/shedaniel/rei/RoughlyEnoughItemsCore.java b/src/main/java/me/shedaniel/rei/RoughlyEnoughItemsCore.java
index f96ccd42a..eb3bec81f 100644
--- a/src/main/java/me/shedaniel/rei/RoughlyEnoughItemsCore.java
+++ b/src/main/java/me/shedaniel/rei/RoughlyEnoughItemsCore.java
@@ -41,7 +41,7 @@ import java.util.Optional;
 import java.util.stream.Collectors;
 
 public class RoughlyEnoughItemsCore implements ClientModInitializer {
-
+    
     public static final Logger LOGGER;
     private static final RecipeHelper RECIPE_HELPER = new RecipeHelperImpl();
     private static final PluginDisabler PLUGIN_DISABLER = new PluginDisablerImpl();
@@ -49,70 +49,80 @@ public class RoughlyEnoughItemsCore implements ClientModInitializer {
     private static final DisplayHelper DISPLAY_HELPER = new DisplayHelperImpl();
     private static final Map<Identifier, REIPluginEntry> plugins = Maps.newHashMap();
     private static ConfigManagerImpl configManager;
-
+    
     static {
         LOGGER = LogManager.getFormatterLogger("REI");
     }
-
+    
     public static RecipeHelper getRecipeHelper() {
         return RECIPE_HELPER;
     }
-
+    
     public static me.shedaniel.rei.api.ConfigManager getConfigManager() {
         return configManager;
     }
-
+    
     public static ItemRegistry getItemRegisterer() {
         return ITEM_REGISTRY;
     }
-
+    
     public static PluginDisabler getPluginDisabler() {
         return PLUGIN_DISABLER;
     }
-
+    
     public static DisplayHelper getDisplayHelper() {
         return DISPLAY_HELPER;
     }
-
+    
     public static REIPluginEntry registerPlugin(Identifier identifier, REIPluginEntry plugin) {
         plugins.put(identifier, plugin);
         RoughlyEnoughItemsCore.LOGGER.info("[REI] Registered plugin %s from %s", identifier.toString(), plugin.getClass().getSimpleName());
         plugin.onFirstLoad(getPluginDisabler());
         return plugin;
     }
-
+    
     public static List<REIPluginEntry> getPlugins() {
         return new LinkedList<>(plugins.values());
     }
-
+    
     public static Optional<Identifier> getPluginIdentifier(REIPluginEntry plugin) {
         for(Identifier identifier : plugins.keySet())
             if (identifier != null && plugins.get(identifier).equals(plugin))
                 return Optional.of(identifier);
         return Optional.empty();
     }
-
+    
     public static boolean hasPermissionToUsePackets() {
-        return hasOperatorPermission() && canUsePackets();
+        try {
+            MinecraftClient.getInstance().getNetworkHandler().getCommandSource().hasPermissionLevel(0);
+            return hasOperatorPermission() && canUsePackets();
+        } catch (NullPointerException e) {
+            return true;
+        }
     }
-
+    
     public static boolean hasOperatorPermission() {
-        return MinecraftClient.getInstance().getNetworkHandler().getCommandSource().hasPermissionLevel(1);
+        try {
+            return MinecraftClient.getInstance().getNetworkHandler().getCommandSource().hasPermissionLevel(1);
+        } catch (NullPointerException e) {
+            return true;
+        }
     }
-
+    
     public static boolean canUsePackets() {
         return ClientSidePacketRegistry.INSTANCE.canServerReceive(RoughlyEnoughItemsNetwork.CREATE_ITEMS_PACKET) && ClientSidePacketRegistry.INSTANCE.canServerReceive(RoughlyEnoughItemsNetwork.DELETE_ITEMS_PACKET);
     }
-
+    
     @Override
     public void onInitializeClient() {
         configManager = new ConfigManagerImpl();
-
+        
         registerClothEvents();
         discoverOldPlugins();
         discoverPluginEntries();
     }
-
+    
+    @SuppressWarnings("deprecation")
     private void discoverPluginEntries() {
         for(REIPluginEntry reiPlugin : FabricLoader.getInstance().getEntrypoints("rei_plugins", REIPluginEntry.class)) {
             try {
@@ -125,7 +135,8 @@ public class RoughlyEnoughItemsCore implements ClientModInitializer {
             }
         }
     }
-
+    
+    @SuppressWarnings("deprecation")
     private void discoverOldPlugins() {
         List<Pair<Identifier, String>> list = Lists.newArrayList();
         for(ModMetadata metadata : FabricLoader.getInstance().getAllMods().stream().map(ModContainer::getMetadata).filter(metadata -> metadata.containsCustomElement("roughlyenoughitems:plugins")).collect(Collectors.toList())) {
@@ -164,7 +175,7 @@ public class RoughlyEnoughItemsCore implements ClientModInitializer {
             }
         }
     }
-
+    
     private void loadPluginFromJsonObject(List<Pair<Identifier, String>> list, ModMetadata modMetadata, JsonObject object) {
         String namespace = modMetadata.getId();
         if (object.has("namespace"))
@@ -173,7 +184,7 @@ public class RoughlyEnoughItemsCore implements ClientModInitializer {
         String className = object.get("class").getAsString();
         list.add(new Pair<>(new Identifier(namespace, id), className));
     }
-
+    
     private void registerClothEvents() {
         ClothClientHooks.SYNC_RECIPES.register((minecraftClient, recipeManager, synchronizeRecipesS2CPacket) -> {
             ((RecipeHelperImpl) RoughlyEnoughItemsCore.getRecipeHelper()).recipesLoaded(recipeManager);
@@ -232,7 +243,7 @@ public class RoughlyEnoughItemsCore implements ClientModInitializer {
                 ScreenHelper.getLastOverlay().lateRender(i, i1, v);
         });
         ClothClientHooks.SCREEN_KEY_PRESSED.register((minecraftClient, screen, i, i1, i2) -> {
-            if (screen.getFocused() != null && screen.getFocused() instanceof TextFieldWidget || (screen.getFocused() instanceof RecipeBookGui && ((RecipeBookGuiHooks)screen.getFocused()).rei_getSearchField() != null && ((RecipeBookGuiHooks)screen.getFocused()).rei_getSearchField().isFocused()))
+            if (screen.getFocused() != null && screen.getFocused() instanceof TextFieldWidget || (screen.getFocused() instanceof RecipeBookGui && ((RecipeBookGuiHooks) screen.getFocused()).rei_getSearchField() != null && ((RecipeBookGuiHooks) screen.getFocused()).rei_getSearchField().isFocused()))
                 return ActionResult.PASS;
             if (screen instanceof ContainerScreen)
                 if (ScreenHelper.getLastOverlay().keyPressed(i, i1, i2))
@@ -240,5 +251,5 @@ public class RoughlyEnoughItemsCore implements ClientModInitializer {
             return ActionResult.PASS;
         });
     }
-
+    
 }
diff --git a/src/main/java/me/shedaniel/rei/RoughlyEnoughItemsNetwork.java b/src/main/java/me/shedaniel/rei/RoughlyEnoughItemsNetwork.java
index 63b7765e2..b2c444ec1 100644
--- a/src/main/java/me/shedaniel/rei/RoughlyEnoughItemsNetwork.java
+++ b/src/main/java/me/shedaniel/rei/RoughlyEnoughItemsNetwork.java
@@ -8,12 +8,12 @@ package me.shedaniel.rei;
 import me.shedaniel.rei.gui.widget.ItemListOverlay;
 import net.fabricmc.api.ModInitializer;
 import net.fabricmc.fabric.api.network.ServerSidePacketRegistry;
+import net.minecraft.ChatFormat;
 import net.minecraft.client.resource.language.I18n;
 import net.minecraft.item.ItemStack;
+import net.minecraft.network.chat.TextComponent;
+import net.minecraft.network.chat.TranslatableComponent;
 import net.minecraft.server.network.ServerPlayerEntity;
-import net.minecraft.text.StringTextComponent;
-import net.minecraft.text.TextFormat;
-import net.minecraft.text.TranslatableTextComponent;
 import net.minecraft.util.Identifier;
 
 public class RoughlyEnoughItemsNetwork implements ModInitializer {
@@ -26,7 +26,7 @@ public class RoughlyEnoughItemsNetwork implements ModInitializer {
         ServerSidePacketRegistry.INSTANCE.register(DELETE_ITEMS_PACKET, (packetContext, packetByteBuf) -> {
             ServerPlayerEntity player = (ServerPlayerEntity) packetContext.getPlayer();
             if (player.getServer().getPermissionLevel(player.getGameProfile()) < player.getServer().getOpPermissionLevel()) {
-                player.addChatMessage(new TranslatableTextComponent("text.rei.no_permission_cheat").applyFormat(TextFormat.RED), false);
+                player.addChatMessage(new TranslatableComponent("text.rei.no_permission_cheat").applyFormat(ChatFormat.RED), false);
                 return;
             }
             if (!player.inventory.getCursorStack().isEmpty())
@@ -35,14 +35,14 @@ public class RoughlyEnoughItemsNetwork implements ModInitializer {
         ServerSidePacketRegistry.INSTANCE.register(CREATE_ITEMS_PACKET, (packetContext, packetByteBuf) -> {
             ServerPlayerEntity player = (ServerPlayerEntity) packetContext.getPlayer();
             if (player.getServer().getPermissionLevel(player.getGameProfile()) < player.getServer().getOpPermissionLevel()) {
-                player.addChatMessage(new TranslatableTextComponent("text.rei.no_permission_cheat").applyFormat(TextFormat.RED), false);
+                player.addChatMessage(new TranslatableComponent("text.rei.no_permission_cheat").applyFormat(ChatFormat.RED), false);
                 return;
             }
             ItemStack stack = packetByteBuf.readItemStack();
             if (player.inventory.insertStack(stack.copy()))
-                player.addChatMessage(new StringTextComponent(I18n.translate("text.rei.cheat_items").replaceAll("\\{item_name}", ItemListOverlay.tryGetItemStackName(stack.copy())).replaceAll("\\{item_count}", stack.copy().getAmount() + "").replaceAll("\\{player_name}", player.getEntityName())), false);
+                player.addChatMessage(new TextComponent(I18n.translate("text.rei.cheat_items").replaceAll("\\{item_name}", ItemListOverlay.tryGetItemStackName(stack.copy())).replaceAll("\\{item_count}", stack.copy().getAmount() + "").replaceAll("\\{player_name}", player.getEntityName())), false);
             else
-                player.addChatMessage(new TranslatableTextComponent("text.rei.failed_cheat_items"), false);
+                player.addChatMessage(new TranslatableComponent("text.rei.failed_cheat_items"), false);
         });
     }
     
diff --git a/src/main/java/me/shedaniel/rei/api/BaseBoundsHandler.java b/src/main/java/me/shedaniel/rei/api/BaseBoundsHandler.java
index f363dccac..3aaf1f482 100644
--- a/src/main/java/me/shedaniel/rei/api/BaseBoundsHandler.java
+++ b/src/main/java/me/shedaniel/rei/api/BaseBoundsHandler.java
@@ -11,11 +11,30 @@ import java.awt.*;
 import java.util.List;
 
 public interface BaseBoundsHandler extends DisplayHelper.DisplayBoundsHandler<Screen> {
+    /**
+     * Gets the exclusion zones by the screen class
+     *
+     * @param currentScreenClass the current screen class
+     * @param isOnRightSide      whether the user has set the overlay to the right
+     * @return the list of exclusion zones
+     */
     List<Rectangle> getCurrentExclusionZones(Class<? extends Screen> currentScreenClass, boolean isOnRightSide);
     
+    /**
+     * Register an exclusion zone
+     *
+     * @param screenClass the screen
+     * @param supplier    the exclusion zone supplier
+     */
     void registerExclusionZones(Class<? extends Screen> screenClass, ExclusionZoneSupplier supplier);
     
     public static interface ExclusionZoneSupplier {
+        /**
+         * Gets the current exclusion zones
+         *
+         * @param isOnRightSide whether the user has set the overlay to the right
+         * @return the list of exclusion zones
+         */
         List<Rectangle> apply(boolean isOnRightSide);
     }
 }
diff --git a/src/main/java/me/shedaniel/rei/api/ClientHelper.java b/src/main/java/me/shedaniel/rei/api/ClientHelper.java
index fe33ddc64..d9f6c7ae8 100644
--- a/src/main/java/me/shedaniel/rei/api/ClientHelper.java
+++ b/src/main/java/me/shedaniel/rei/api/ClientHelper.java
@@ -41,9 +41,9 @@ public interface ClientHelper {
     
     /**
      * Opens a recipe viewing screen:
-     * {@link me.shedaniel.rei.gui.PreRecipeViewingScreen} if not set
-     * {@link me.shedaniel.rei.gui.RecipeViewingScreen} if set to default
-     * {@link me.shedaniel.rei.gui.VillagerRecipeViewingScreen} if set to villager
+     * Opens {@link me.shedaniel.rei.gui.PreRecipeViewingScreen} if not set
+     * Opens {@link me.shedaniel.rei.gui.RecipeViewingScreen} if set to default
+     * Opens {@link me.shedaniel.rei.gui.VillagerRecipeViewingScreen} if set to villager
      *
      * @param map the map of recipes
      */
@@ -115,14 +115,29 @@ public interface ClientHelper {
      */
     String getModFromIdentifier(Identifier identifier);
     
+    /**
+     * @return the recipe keybind, defaulted R
+     */
     FabricKeyBinding getRecipeKeyBinding();
     
+    /**
+     * @return the usage keybind, defaulted U
+     */
     FabricKeyBinding getUsageKeyBinding();
     
+    /**
+     * @return the hide keybind, defaulted O
+     */
     FabricKeyBinding getHideKeyBinding();
     
+    /**
+     * @return the previous page keybind, defaulted not set
+     */
     FabricKeyBinding getPreviousPageKeyBinding();
     
+    /**
+     * @return the next page keybind, defaulted not set
+     */
     FabricKeyBinding getNextPageKeyBinding();
     
     /**
diff --git a/src/main/java/me/shedaniel/rei/api/DisplayHelper.java b/src/main/java/me/shedaniel/rei/api/DisplayHelper.java
index 9fea85839..5cabf4ad1 100644
--- a/src/main/java/me/shedaniel/rei/api/DisplayHelper.java
+++ b/src/main/java/me/shedaniel/rei/api/DisplayHelper.java
@@ -56,11 +56,6 @@ public interface DisplayHelper {
     
     public static interface DisplayBoundsHandler<T> {
         /**
-         * An empty rectangle
-         */
-        public static final Rectangle EMPTY = new Rectangle();
-        
-        /**
          * Gets the base supported class for the bounds handler
          *
          * @return the base class
diff --git a/src/main/java/me/shedaniel/rei/api/ItemRegistry.java b/src/main/java/me/shedaniel/rei/api/ItemRegistry.java
index 0a9da2c46..a29682985 100644
--- a/src/main/java/me/shedaniel/rei/api/ItemRegistry.java
+++ b/src/main/java/me/shedaniel/rei/api/ItemRegistry.java
@@ -27,6 +27,12 @@ public interface ItemRegistry {
     @Deprecated
     List<ItemStack> getModifiableItemList();
     
+    /**
+     * Gets all possible stacks from an item
+     *
+     * @param item the item to find
+     * @return the array of possible stacks
+     */
     ItemStack[] getAllStacksFromItem(Item item);
     
     /**
@@ -37,12 +43,23 @@ public interface ItemRegistry {
      */
     void registerItemStack(Item afterItem, ItemStack stack);
     
+    /**
+     * Registers multiple stacks to the item list
+     *
+     * @param afterItem the stack to put after
+     * @param stacks    the stacks to register
+     */
     default void registerItemStack(Item afterItem, ItemStack... stacks) {
         for(ItemStack stack : stacks)
             if (stack != null && !stack.isEmpty())
                 registerItemStack(afterItem, stack);
     }
     
+    /**
+     * Registers multiple stacks to the item list
+     *
+     * @param stacks the stacks to register
+     */
     default void registerItemStack(ItemStack... stacks) {
         for(ItemStack stack : stacks)
             if (stack != null && !stack.isEmpty())
diff --git a/src/main/java/me/shedaniel/rei/api/PluginDisabler.java b/src/main/java/me/shedaniel/rei/api/PluginDisabler.java
index cd3b61578..ed4f8638c 100644
--- a/src/main/java/me/shedaniel/rei/api/PluginDisabler.java
+++ b/src/main/java/me/shedaniel/rei/api/PluginDisabler.java
@@ -9,20 +9,51 @@ import net.minecraft.util.Identifier;
 
 public interface PluginDisabler {
     
+    /**
+     * Disables multiple functions from a plugin
+     *
+     * @param plugin    the identifier of the plugin
+     * @param functions the array of functions to be disabled
+     */
     default void disablePluginFunctions(Identifier plugin, PluginFunction... functions) {
         for(PluginFunction function : functions)
             disablePluginFunction(plugin, function);
     }
     
+    /**
+     * Enables multiple functions from a plugin
+     *
+     * @param plugin    the identifier of the plugin
+     * @param functions the array of functions to be enabled
+     */
     default void enablePluginFunctions(Identifier plugin, PluginFunction... functions) {
         for(PluginFunction function : functions)
             enablePluginFunction(plugin, function);
     }
     
+    /**
+     * Disables a function from a plugin
+     *
+     * @param plugin    the identifier of the plugin
+     * @param function the function to be disabled
+     */
     void disablePluginFunction(Identifier plugin, PluginFunction function);
     
+    /**
+     * Enables a function from a plugin
+     *
+     * @param plugin    the identifier of the plugin
+     * @param function the function to be enabled
+     */
     void enablePluginFunction(Identifier plugin, PluginFunction function);
     
+    /**
+     * Checks if a plugin function has been disabled
+     *
+     * @param plugin   the identifier of the plugin
+     * @param function the function to check
+     * @return whether if it has been disabled
+     */
     boolean isFunctionEnabled(Identifier plugin, PluginFunction function);
     
 }
diff --git a/src/main/java/me/shedaniel/rei/api/RecipeDisplay.java b/src/main/java/me/shedaniel/rei/api/RecipeDisplay.java
index 4fb564133..9e17159bc 100644
--- a/src/main/java/me/shedaniel/rei/api/RecipeDisplay.java
+++ b/src/main/java/me/shedaniel/rei/api/RecipeDisplay.java
@@ -15,16 +15,35 @@ import java.util.Optional;
 
 public interface RecipeDisplay<T extends Recipe> {
     
+    /**
+     * @return the optional recipe
+     */
     Optional<T> getRecipe();
     
+    /**
+     * @return a list of items
+     */
     List<List<ItemStack>> getInput();
     
+    /**
+     * @return a list of outputs
+     */
     List<ItemStack> getOutput();
     
+    /**
+     * Gets the required items used in craftable filters
+     *
+     * @return the list of required items
+     */
     default List<List<ItemStack&