Finished GUIs

config/checkstyle/suppression.xml

@@ -8,6 +8,8 @@
     <!-- Internals don't need javadoc. -->
     <suppress files="[\\/]internal[\\/]" checks="MissingJavadocMethod"/>
     <suppress files="[\\/]internal[\\/]" checks="JavadocVariable"/>
+    <suppress files="[\\/]eco[\\/]spigot[\\/]" checks="MissingJavadocMethod"/>
+    <suppress files="[\\/]eco[\\/]spigot[\\/]" checks="JavadocVariable"/>
 
     <!-- Modified version of library -->
     <suppress files="ArmorEquipEvent.java" checks="JavadocVariable"/>

eco-api/src/main/java/com/willfp/eco/core/data/Data.java

@@ -0,0 +1,142 @@
+package com.willfp.eco.core.data;
+
+import com.willfp.eco.core.config.BaseConfig;
+import com.willfp.eco.core.config.Config;
+import com.willfp.eco.internal.config.ConfigSection;
+import lombok.experimental.UtilityClass;
+import org.bukkit.NamespacedKey;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+@UtilityClass
+public class Data {
+    /**
+     * Instance of eco data.yml.
+     */
+    private static BaseConfig dataYml = null;
+
+    /**
+     * All cached player data.
+     */
+    private static final Map<UUID, Config> PLAYER_DATA = new HashMap<>();
+
+    /**
+     * Write an integer to a player's data.
+     *
+     * @param player The player.
+     * @param key    The key.
+     * @param data   The data.
+     */
+    public void writeInt(@NotNull final OfflinePlayer player,
+                         @NotNull final NamespacedKey key,
+                         final int data) {
+        getPlayerConfig(player).set(key.toString(), data);
+    }
+
+    /**
+     * Write a string to a player's data.
+     *
+     * @param player The player.
+     * @param key    The key.
+     * @param data   The data.
+     */
+    public void writeString(@NotNull final OfflinePlayer player,
+                            @NotNull final NamespacedKey key,
+                            @NotNull final String data) {
+        getPlayerConfig(player).set(key.toString(), data);
+    }
+
+    /**
+     * Write a double to a player's data.
+     *
+     * @param player The player.
+     * @param key    The key.
+     * @param data   The data.
+     */
+    public void writeDouble(@NotNull final OfflinePlayer player,
+                            @NotNull final NamespacedKey key,
+                            final double data) {
+        getPlayerConfig(player).set(key.toString(), data);
+    }
+
+    /**
+     * Read an integer from a player's data.
+     *
+     * @param player The player.
+     * @param key    The key.
+     */
+    public int readInt(@NotNull final OfflinePlayer player,
+                       @NotNull final NamespacedKey key) {
+        return getPlayerConfig(player).getInt(key.toString());
+    }
+
+    /**
+     * Read a string from a player's data.
+     *
+     * @param player The player.
+     * @param key    The key.
+     */
+    public String readString(@NotNull final OfflinePlayer player,
+                             @NotNull final NamespacedKey key) {
+        return getPlayerConfig(player).getString(key.toString());
+    }
+
+    /**
+     * Read a double from a player's data.
+     *
+     * @param player The player.
+     * @param key    The key.
+     */
+    public double readDouble(@NotNull final OfflinePlayer player,
+                             @NotNull final NamespacedKey key) {
+        return getPlayerConfig(player).getDouble(key.toString());
+    }
+
+    /**
+     * Initialize the player data with an instance of data.yml.
+     *
+     * @param config data.yml.
+     */
+    @ApiStatus.Internal
+    public void init(@NotNull final BaseConfig config) {
+        dataYml = config;
+    }
+
+    /**
+     * Save to data.yml.
+     *
+     * @param config Instance of data.yml.
+     * @throws IOException Error during saving.
+     */
+    @ApiStatus.Internal
+    public void save(@NotNull final BaseConfig config) throws IOException {
+        for (Map.Entry<UUID, Config> entry : PLAYER_DATA.entrySet()) {
+            for (String key : entry.getValue().getKeys(false)) {
+                config.set("player-data." + entry.getKey().toString() + "." + key, entry.getValue().get(key));
+            }
+        }
+        config.save();
+    }
+
+    private Config getPlayerConfig(@NotNull final OfflinePlayer player) {
+        Config config = PLAYER_DATA.get(player.getUniqueId());
+
+        if (config == null) {
+            config = dataYml.getSubsectionOrNull("player-data." + player.getUniqueId());
+            if (config == null) {
+                config = new ConfigSection(new YamlConfiguration());
+            }
+            PLAYER_DATA.put(player.getUniqueId(), config);
+            return getPlayerConfig(player);
+        }
+
+        return config;
+    }
+}

eco-api/src/main/java/com/willfp/eco/core/gui/menu/FillerMask.java

@@ -0,0 +1,53 @@
+package com.willfp.eco.core.gui.menu;
+
+import com.willfp.eco.core.gui.slot.Slot;
+import com.willfp.eco.internal.gui.FillerSlot;
+import com.willfp.eco.util.ListUtils;
+import lombok.Getter;
+import org.bukkit.Material;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.List;
+
+public class FillerMask {
+    @Getter
+    private final List<List<Slot>> mask;
+
+    public FillerMask(@NotNull final Material material,
+                      @NotNull final String... pattern) {
+        if (material == Material.AIR) {
+            throw new IllegalArgumentException("Material cannot be air!");
+        }
+
+        mask = ListUtils.create2DList(6, 9);
+
+        ItemStack itemStack = new ItemStack(material);
+        ItemMeta meta = itemStack.getItemMeta();
+        assert meta != null;
+        meta.setDisplayName("§r");
+        itemStack.setItemMeta(meta);
+
+        int row = 0;
+
+        for (String patternRow : pattern) {
+            int column = 0;
+            if (patternRow.length() != 9) {
+                throw new IllegalArgumentException("Invalid amount of columns in pattern!");
+            }
+            for (char c : patternRow.toCharArray()) {
+                if (c == '0') {
+                    mask.get(row).set(column, null);
+                } else if (c == '1') {
+                    mask.get(row).set(column, new FillerSlot(itemStack));
+                } else {
+                    throw new IllegalArgumentException("Invalid character in pattern! (Must only be 0 and 1)");
+                }
+
+                column++;
+            }
+            row++;
+        }
+    }
+}

eco-api/src/main/java/com/willfp/eco/core/gui/menu/Menu.java

@@ -0,0 +1,98 @@
+package com.willfp.eco.core.gui.menu;
+
+import com.willfp.eco.core.gui.slot.Slot;
+import com.willfp.eco.internal.gui.EcoMenu;
+import com.willfp.eco.internal.gui.FillerSlot;
+import com.willfp.eco.util.ListUtils;
+import com.willfp.eco.util.StringUtils;
+import org.bukkit.Material;
+import org.bukkit.entity.Player;
+import org.bukkit.event.inventory.InventoryCloseEvent;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.List;
+import java.util.function.Consumer;
+
+public interface Menu {
+    int getRows();
+
+    Slot getSlot(int row,
+                 int column);
+
+    String getTitle();
+
+    Inventory open(@NotNull Player player);
+
+    static Builder builder(final int rows) {
+        return new Builder(rows);
+    }
+
+    class Builder {
+        private final int rows;
+        private String title = "Menu";
+        private List<List<Slot>> maskSlots;
+        private final List<List<Slot>> slots;
+        private Consumer<InventoryCloseEvent> onClose = (event) -> {
+        };
+
+        Builder(final int rows) {
+            this.rows = rows;
+            this.slots = ListUtils.create2DList(rows, 9);
+            this.maskSlots = ListUtils.create2DList(rows, 9);
+        }
+
+        public Builder setTitle(@NotNull final String title) {
+            this.title = StringUtils.translate(title);
+            return this;
+        }
+
+        public Builder setSlot(final int row,
+                               final int column,
+                               @NotNull final Slot slot) {
+            if (row < 1 || row > this.rows) {
+                throw new IllegalArgumentException("Invalid row number!");
+            }
+
+            if (column < 1 || column > 9) {
+                throw new IllegalArgumentException("Invalid column number!");
+            }
+
+            slots.get(row - 1).set(column - 1, slot);
+            return this;
+        }
+
+        public Builder setMask(@NotNull final FillerMask mask) {
+            this.maskSlots = mask.getMask();
+            return this;
+        }
+
+        public Builder onClose(@NotNull final Consumer<InventoryCloseEvent> action) {
+            this.onClose = action;
+            return this;
+        }
+
+        public Menu build() {
+            List<List<Slot>> finalSlots = maskSlots;
+            for (int i = 0; i < slots.size(); i++) {
+                for (int j = 0; j < slots.get(i).size(); j++) {
+                    Slot slot = slots.get(i).get(j);
+                    if (slot != null) {
+                        finalSlots.get(i).set(j, slot);
+                    }
+                }
+            }
+
+            for (List<Slot> finalSlot : finalSlots) {
+                for (int j = 0; j < finalSlot.size(); j++) {
+                    if (finalSlot.get(j) == null) {
+                        finalSlot.set(j, new FillerSlot(new ItemStack(Material.AIR)));
+                    }
+                }
+            }
+
+            return new EcoMenu(rows, finalSlots, title, onClose);
+        }
+    }
+}

eco-api/src/main/java/com/willfp/eco/core/gui/slot/Slot.java

@@ -0,0 +1,63 @@
+package com.willfp.eco.core.gui.slot;
+
+import com.willfp.eco.internal.gui.EcoSlot;
+import org.bukkit.event.inventory.InventoryClickEvent;
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.function.BiConsumer;
+
+public interface Slot {
+    ItemStack getItemStack();
+
+    static Builder builder(@NotNull final ItemStack itemStack) {
+        return new Builder(itemStack);
+    }
+
+    class Builder {
+        private final ItemStack itemStack;
+
+        private BiConsumer<InventoryClickEvent, Slot> onLeftClick = null;
+
+        private BiConsumer<InventoryClickEvent, Slot> onRightClick = null;
+
+        private BiConsumer<InventoryClickEvent, Slot> onShiftLeftClick = null;
+
+        private BiConsumer<InventoryClickEvent, Slot> onShiftRightClick = null;
+
+        private BiConsumer<InventoryClickEvent, Slot> onMiddleClick = null;
+
+        Builder(@NotNull final ItemStack itemStack) {
+            this.itemStack = itemStack;
+        }
+
+        public Builder onLeftClick(@NotNull final BiConsumer<InventoryClickEvent, Slot> action) {
+            this.onLeftClick = action;
+            return this;
+        }
+
+        public Builder onRightClick(@NotNull final BiConsumer<InventoryClickEvent, Slot> action) {
+            this.onRightClick = action;
+            return this;
+        }
+
+        public Builder onShiftLeftClick(@NotNull final BiConsumer<InventoryClickEvent, Slot> action) {
+            this.onShiftLeftClick = action;
+            return this;
+        }
+
+        public Builder onShiftRightClick(@NotNull final BiConsumer<InventoryClickEvent, Slot> action) {
+            this.onShiftRightClick = action;
+            return this;
+        }
+
+        public Builder onMiddleClick(@NotNull final BiConsumer<InventoryClickEvent, Slot> action) {
+            this.onMiddleClick = action;
+            return this;
+        }
+
+        public Slot build() {
+            return new EcoSlot(itemStack, onLeftClick, onRightClick, onShiftLeftClick, onShiftRightClick, onMiddleClick);
+        }
+    }
+}

eco-api/src/main/java/com/willfp/eco/internal/config/ConfigSection.java

@@ -9,7 +9,7 @@ public class ConfigSection extends ConfigWrapper<ConfigurationSection> {
      *
      * @param section    The section.
      */
-    protected ConfigSection(@NotNull final ConfigurationSection section) {
+    public ConfigSection(@NotNull final ConfigurationSection section) {
         this.init(section);
     }
 }

eco-api/src/main/java/com/willfp/eco/internal/config/ConfigWrapper.java

@@ -64,6 +64,7 @@ public abstract class ConfigWrapper<T extends ConfigurationSection> implements C
     @Override
     public void set(@NotNull final String path,
                     @Nullable final Object object) {
+        cache.remove(path);
         handle.set(path, object);
     }
 
@@ -81,7 +82,12 @@ public abstract class ConfigWrapper<T extends ConfigurationSection> implements C
         if (cache.containsKey(path)) {
             return (Config) cache.get(path);
         } else {
-            cache.put(path, new ConfigSection(Objects.requireNonNull(handle.getConfigurationSection(path))));
+            ConfigurationSection raw = handle.getConfigurationSection(path);
+            if (raw == null) {
+                cache.put(path, null);
+            } else {
+                cache.put(path, new ConfigSection(raw));
+            }
             return getSubsectionOrNull(path);
         }
     }

eco-api/src/main/java/com/willfp/eco/internal/gui/EcoMenu.java

@@ -0,0 +1,73 @@
+package com.willfp.eco.internal.gui;
+
+import com.willfp.eco.core.gui.menu.Menu;
+import com.willfp.eco.core.gui.slot.Slot;
+import lombok.Getter;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.event.inventory.InventoryCloseEvent;
+import org.bukkit.inventory.Inventory;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.List;
+import java.util.function.Consumer;
+
+public class EcoMenu implements Menu {
+    @Getter
+    private final int rows;
+
+    private final List<List<Slot>> slots;
+
+    @Getter
+    private final String title;
+
+    private final Consumer<InventoryCloseEvent> onClose;
+
+    public EcoMenu(final int rows,
+                   @NotNull final List<List<Slot>> slots,
+                   @NotNull final String title,
+                   @NotNull final Consumer<InventoryCloseEvent> onClose) {
+        this.rows = rows;
+        this.slots = slots;
+        this.title = title;
+        this.onClose = onClose;
+    }
+
+    @Override
+    public Slot getSlot(final int row,
+                        final int column) {
+        if (row < 1 || row > this.rows) {
+            throw new IllegalArgumentException("Invalid row number!");
+        }
+
+        if (column < 1 || column > 9) {
+            throw new IllegalArgumentException("Invalid column number!");
+        }
+
+        return slots.get(row - 1).get(column - 1);
+    }
+
+    @Override
+    public Inventory open(@NotNull final Player player) {
+        Inventory inventory = Bukkit.createInventory(null, rows * 9, title);
+        int i = 0;
+        for (List<Slot> row : slots) {
+            for (Slot item : row) {
+                if (i == rows * 9) {
+                    break;
+                }
+                inventory.setItem(i, item.getItemStack());
+                i++;
+            }
+        }
+
+
+        player.openInventory(inventory);
+        MenuHandler.registerMenu(inventory, this);
+        return inventory;
+    }
+
+    public void handleClose(@NotNull final InventoryCloseEvent event) {
+        onClose.accept(event);
+    }
+}

eco-api/src/main/java/com/willfp/eco/internal/gui/EcoSlot.java

@@ -0,0 +1,61 @@
+package com.willfp.eco.internal.gui;
+
+import com.willfp.eco.core.gui.slot.Slot;
+import lombok.Getter;
+import org.bukkit.event.inventory.InventoryClickEvent;
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.function.BiConsumer;
+
+public class EcoSlot implements Slot {
+    @Getter
+    private final ItemStack itemStack;
+
+    private final BiConsumer<InventoryClickEvent, Slot> onLeftClick;
+
+    private final BiConsumer<InventoryClickEvent, Slot> onRightClick;
+
+    private final BiConsumer<InventoryClickEvent, Slot> onShiftLeftClick;
+
+    private final BiConsumer<InventoryClickEvent, Slot> onShiftRightClick;
+
+    private final BiConsumer<InventoryClickEvent, Slot> onMiddleClick;
+
+    public EcoSlot(@NotNull final ItemStack itemStack,
+                   @Nullable final BiConsumer<InventoryClickEvent, Slot> onLeftClick,
+                   @Nullable final BiConsumer<InventoryClickEvent, Slot> onRightClick,
+                   @Nullable final BiConsumer<InventoryClickEvent, Slot> onShiftLeftClick,
+                   @Nullable final BiConsumer<InventoryClickEvent, Slot> onShiftRightClick,
+                   @Nullable final BiConsumer<InventoryClickEvent, Slot> onMiddleClick) {
+        this.itemStack = itemStack;
+        this.onLeftClick = onLeftClick == null ? ((event, slot) -> { }) : onLeftClick;
+        this.onRightClick = onRightClick == null ? ((event, slot) -> { }) : onRightClick;
+        this.onShiftLeftClick = onShiftLeftClick == null ? ((event, slot) -> { }) : onShiftLeftClick;
+        this.onShiftRightClick = onShiftRightClick == null ? ((event, slot) -> { }) : onShiftRightClick;
+        this.onMiddleClick = onMiddleClick == null ? ((event, slot) -> { }) : onMiddleClick;
+    }
+
+    public void handleInventoryClick(@NotNull final InventoryClickEvent event) {
+        switch (event.getClick()) {
+            case LEFT:
+                this.onLeftClick.accept(event, this);
+                break;
+            case RIGHT:
+                this.onRightClick.accept(event, this);
+                break;
+            case SHIFT_LEFT:
+                this.onShiftLeftClick.accept(event, this);
+                break;
+            case SHIFT_RIGHT:
+                this.onShiftRightClick.accept(event, this);
+                break;
+            case MIDDLE:
+                this.onMiddleClick.accept(event, this);
+                break;
+            default:
+                break;
+        }
+    }
+}

eco-api/src/main/java/com/willfp/eco/internal/gui/FillerSlot.java

@@ -0,0 +1,15 @@
+package com.willfp.eco.internal.gui;
+
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
+
+public class FillerSlot extends EcoSlot {
+    /**
+     * Create new filler slot.
+     *
+     * @param itemStack The ItemStack.
+     */
+    public FillerSlot(@NotNull final ItemStack itemStack) {
+        super(itemStack, null, null, null, null, null);
+    }
+}

eco-api/src/main/java/com/willfp/eco/internal/gui/MenuHandler.java

@@ -0,0 +1,29 @@
+package com.willfp.eco.internal.gui;
+
+import com.willfp.eco.core.gui.menu.Menu;
+import lombok.experimental.UtilityClass;
+import org.bukkit.inventory.Inventory;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@UtilityClass
+public class MenuHandler {
+    private static final Map<Inventory, Menu> MENUS = new HashMap<>();
+
+    public void registerMenu(@NotNull final Inventory inventory,
+                             @NotNull final Menu menu) {
+        MENUS.put(inventory, menu);
+    }
+
+    public void unregisterMenu(@NotNull final Inventory inventory) {
+        MENUS.remove(inventory);
+    }
+
+    @Nullable
+    public Menu getMenu(@NotNull final Inventory inventory) {
+        return MENUS.get(inventory);
+    }
+}

eco-api/src/main/java/com/willfp/eco/util/BlockUtils.java

@@ -37,15 +37,6 @@ public class BlockUtils {
                 if (blocks.size() > limit || blocks.size() > 2500) {
                     return blocks;
                 }
-            }
-        }
-        // Running twice to get more spherical shape.
-        for (BlockFace face : BlockFace.values()) {
-            Block block = start.getRelative(face);
-            if (!blocks.contains(block) && allowedMaterials.contains(block.getType())) {
-                if (blocks.size() > limit || blocks.size() > 2500) {
-                    return blocks;
-                }
                 blocks.addAll(getNearbyBlocks(block, allowedMaterials, blocks, limit));
             }
         }

eco-api/src/main/java/com/willfp/eco/util/ListUtils.java

@@ -0,0 +1,31 @@
+package com.willfp.eco.util;
+
+import lombok.experimental.UtilityClass;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@UtilityClass
+public class ListUtils {
+    /**
+     * Initialize 2D list of a given size.
+     *
+     * @param rows    The amount of rows.
+     * @param columns The amount of columns.
+     * @param <T>     The type of the object stored in the list.
+     * @return The list, filled will null objects.
+     */
+    public <T> List<List<T>> create2DList(final int rows,
+                                          final int columns) {
+        List<List<T>> list = new ArrayList<>(rows);
+        while (list.size() < rows) {
+            List<T> row = new ArrayList<>(columns);
+            while (row.size() < columns) {
+                row.add(null);
+            }
+            list.add(row);
+        }
+
+        return list;
+    }
+}

eco-api/src/main/java/com/willfp/eco/util/NumberUtils.java

@@ -10,20 +10,10 @@ import java.util.concurrent.ThreadLocalRandom;
 
 @UtilityClass
 public class NumberUtils {
-    /**
-     * Precision.
-     */
-    private static final int FAST_TRIG_PRECISION = 100;
-
-    /**
-     * Modulus.
-     */
-    private static final int FAST_TRIG_MODULUS = 360 * FAST_TRIG_PRECISION;
-
     /**
      * Sin lookup table.
      */
-    private static final double[] SIN_LOOKUP = new double[FAST_TRIG_MODULUS];
+    private static final double[] SIN_LOOKUP = new double[65536];
 
     /**
      * Set of roman numerals to look up.
@@ -45,15 +35,11 @@ public class NumberUtils {
         NUMERALS.put(4, "IV");
         NUMERALS.put(1, "I");
 
-        for (int i = 0; i < SIN_LOOKUP.length; i++) {
-            SIN_LOOKUP[i] = Math.sin((i * Math.PI) / (FAST_TRIG_PRECISION * 180));
+        for (int i = 0; i < 65536; ++i) {
+            SIN_LOOKUP[i] = Math.sin((double) i * 3.141592653589793D * 2.0D / 65536.0D);
         }
     }
 
-    private static double sinLookup(final int a) {
-        return a >= 0 ? SIN_LOOKUP[a % FAST_TRIG_MODULUS] : -SIN_LOOKUP[-a % FAST_TRIG_MODULUS];
-    }
-
     /**
      * Get the sin of a number.
      *
@@ -61,7 +47,8 @@ public class NumberUtils {
      * @return The sin.
      */
     public static double fastSin(final double a) {
-        return sinLookup((int) (a * FAST_TRIG_PRECISION + 0.5f));
+        float f = (float) a;
+        return SIN_LOOKUP[(int) (f * 10430.378F) & '\uffff'];
     }
 
     /**
@@ -71,7 +58,8 @@ public class NumberUtils {
      * @return The cosine.
      */
     public static double fastCos(final double a) {
-        return sinLookup((int) ((a + 90f) * FAST_TRIG_PRECISION + 0.5f));
+        float f = (float) a;
+        return SIN_LOOKUP[(int) (f * 10430.378F + 16384.0F) & '\uffff'];
     }
 
     /**

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/EcoSpigotPlugin.java

@@ -3,6 +3,7 @@ package com.willfp.eco.spigot;
 import com.willfp.eco.core.AbstractPacketAdapter;
 import com.willfp.eco.core.EcoPlugin;
 import com.willfp.eco.core.command.AbstractCommand;
+import com.willfp.eco.core.data.Data;
 import com.willfp.eco.core.display.Display;
 import com.willfp.eco.core.display.DisplayModule;
 import com.willfp.eco.core.integrations.IntegrationLoader;
@@ -12,6 +13,7 @@ import com.willfp.eco.core.integrations.mcmmo.McmmoManager;
 import com.willfp.eco.proxy.proxies.BlockBreakProxy;
 import com.willfp.eco.proxy.proxies.SkullProxy;
 import com.willfp.eco.proxy.proxies.TridentStackProxy;
+import com.willfp.eco.spigot.config.DataYml;
 import com.willfp.eco.spigot.display.PacketAutoRecipe;
 import com.willfp.eco.spigot.display.PacketChat;
 import com.willfp.eco.spigot.display.PacketOpenWindowMerchant;
@@ -23,9 +25,8 @@ import com.willfp.eco.spigot.eventlisteners.ArmorListener;
 import com.willfp.eco.spigot.eventlisteners.DispenserArmorListener;
 import com.willfp.eco.spigot.eventlisteners.EntityDeathByEntityListeners;
 import com.willfp.eco.spigot.eventlisteners.NaturalExpGainListeners;
-import com.willfp.eco.spigot.integrations.anticheat.AnticheatAAC;
-import com.willfp.eco.spigot.integrations.anticheat.AnticheatMatrix;
-import com.willfp.eco.spigot.integrations.anticheat.AnticheatNCP;
+import com.willfp.eco.spigot.gui.GUIListener;
+import com.willfp.eco.spigot.integrations.anticheat.*;
 import com.willfp.eco.spigot.integrations.antigrief.AntigriefCombatLogX;
 import com.willfp.eco.spigot.integrations.antigrief.AntigriefFactionsUUID;
 import com.willfp.eco.spigot.integrations.antigrief.AntigriefGriefPrevention;
@@ -42,6 +43,7 @@ import lombok.Getter;
 import org.bukkit.event.Listener;
 import org.jetbrains.annotations.Nullable;
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -53,6 +55,11 @@ public class EcoSpigotPlugin extends EcoPlugin {
     @Getter
     private static EcoSpigotPlugin instance;
 
+    /**
+     * data.yml.
+     */
+    private final DataYml dataYml;
+
     /**
      * Create a new instance of eco.
      */
@@ -69,21 +76,23 @@ public class EcoSpigotPlugin extends EcoPlugin {
 
         TridentStackProxy tridentStackProxy = InternalProxyUtils.getProxy(TridentStackProxy.class);
         TridentUtils.initialize(tridentStackProxy::getTridentStack);
+
+        this.dataYml = new DataYml(this);
+        Data.init(this.dataYml);
     }
 
     @Override
     public void enable() {
         new CollatedRunnable(this);
-        this.getEventManager().registerListener(new NaturalExpGainListeners());
-        this.getEventManager().registerListener(new ArmorListener());
-        this.getEventManager().registerListener(new DispenserArmorListener());
-        this.getEventManager().registerListener(new EntityDeathByEntityListeners(this));
-        this.getEventManager().registerListener(new ShapedRecipeListener());
     }
 
     @Override
     public void disable() {
-
+        try {
+            Data.save(this.dataYml);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
     }
 
     @Override
@@ -117,6 +126,8 @@ public class EcoSpigotPlugin extends EcoPlugin {
                 new IntegrationLoader("AAC5", () -> AnticheatManager.register(this, new AnticheatAAC())),
                 new IntegrationLoader("Matrix", () -> AnticheatManager.register(this, new AnticheatMatrix())),
                 new IntegrationLoader("NoCheatPlus", () -> AnticheatManager.register(this, new AnticheatNCP())),
+                new IntegrationLoader("Spartan", () -> AnticheatManager.register(this, new AnticheatSpartan())),
+                new IntegrationLoader("Vulcan", () -> AnticheatManager.register(this, new AnticheatVulcan())),
 
                 // Misc
                 new IntegrationLoader("mcMMO", () -> McmmoManager.register(new McmmoIntegrationImpl()))
@@ -142,7 +153,14 @@ public class EcoSpigotPlugin extends EcoPlugin {
 
     @Override
     public List<Listener> getListeners() {
-        return new ArrayList<>();
+        return Arrays.asList(
+                new NaturalExpGainListeners(),
+                new ArmorListener(),
+                new DispenserArmorListener(),
+                new EntityDeathByEntityListeners(this),
+                new ShapedRecipeListener(),
+                new GUIListener(this)
+        );
     }
 
     @Override

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/config/DataYml.java

@@ -0,0 +1,16 @@
+package com.willfp.eco.spigot.config;
+
+import com.willfp.eco.core.config.BaseConfig;
+import com.willfp.eco.spigot.EcoSpigotPlugin;
+import org.jetbrains.annotations.NotNull;
+
+public class DataYml extends BaseConfig {
+    /**
+     * Init data.yml.
+     *
+     * @param plugin EcoSpigotPlugin.
+     */
+    public DataYml(@NotNull final EcoSpigotPlugin plugin) {
+        super("data", false, plugin);
+    }
+}

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/gui/GUIListener.java

@@ -0,0 +1,95 @@
+package com.willfp.eco.spigot.gui;
+
+import com.willfp.eco.core.EcoPlugin;
+import com.willfp.eco.core.PluginDependent;
+import com.willfp.eco.core.gui.menu.FillerMask;
+import com.willfp.eco.core.gui.menu.Menu;
+import com.willfp.eco.core.gui.slot.Slot;
+import com.willfp.eco.internal.gui.EcoMenu;
+import com.willfp.eco.internal.gui.EcoSlot;
+import com.willfp.eco.internal.gui.MenuHandler;
+import org.bukkit.Material;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.inventory.InventoryClickEvent;
+import org.bukkit.event.inventory.InventoryCloseEvent;
+import org.bukkit.event.player.AsyncPlayerChatEvent;
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
+
+public class GUIListener extends PluginDependent implements Listener {
+    /**
+     * Pass an {@link EcoPlugin} in order to interface with it.
+     *
+     * @param plugin The plugin to manage.
+     */
+    public GUIListener(@NotNull final EcoPlugin plugin) {
+        super(plugin);
+    }
+
+    @EventHandler
+    public void handleSlotClick(@NotNull final InventoryClickEvent event) {
+        if (!(event.getWhoClicked() instanceof Player)) {
+            return;
+        }
+
+        if (event.getClickedInventory() == null) {
+            return;
+        }
+        Menu menu = MenuHandler.getMenu(event.getClickedInventory());
+        if (menu == null) {
+            return;
+        }
+
+        int row = Math.floorDiv(event.getSlot(), 9);
+        int column = event.getSlot() - (row * 9);
+
+        EcoSlot slot = (EcoSlot) menu.getSlot(row, column);
+        event.setCancelled(true);
+        slot.handleInventoryClick(event);
+    }
+
+    @EventHandler
+    public void handleClose(@NotNull final InventoryCloseEvent event) {
+        if (!(event.getPlayer() instanceof Player)) {
+            return;
+        }
+
+        EcoMenu menu = (EcoMenu) MenuHandler.getMenu(event.getInventory());
+        if (menu == null) {
+            return;
+        }
+
+        menu.handleClose(event);
+
+        this.getPlugin().getScheduler().run(() -> MenuHandler.unregisterMenu(event.getInventory()));
+    }
+
+    @EventHandler
+    public void test(@NotNull final AsyncPlayerChatEvent event) {
+        String message = event.getMessage();
+        if (!message.equals("guitest")) {
+            return;
+        }
+
+        this.getPlugin().getScheduler().run(() -> {
+            Menu.builder(5)
+                    .setMask(new FillerMask(
+                            Material.BLACK_STAINED_GLASS_PANE,
+                            "111111111",
+                            "100000001",
+                            "100000001",
+                            "100000001",
+                            "111111111"
+                    ))
+                    .setSlot(1, 3, Slot.builder(new ItemStack(Material.TNT))
+                            .onLeftClick((event1, slot) -> event1.getWhoClicked().sendMessage("CLICK"))
+                            .build())
+                    .setTitle("Poggers")
+                    .onClose(event1 -> event1.getPlayer().sendMessage("CLOSED"))
+                    .build()
+                    .open(event.getPlayer());
+        });
+    }
+}

eco-core/core-plugin/src/main/java/com/willfp/eco/spigot/integrations/anticheat/AnticheatVulcan.java

@@ -0,0 +1,44 @@
+package com.willfp.eco.spigot.integrations.anticheat;
+
+import com.willfp.eco.core.integrations.anticheat.AnticheatWrapper;
+import me.frep.vulcan.api.event.VulcanFlagEvent;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.UUID;
+
+public class AnticheatVulcan implements AnticheatWrapper, Listener {
+    /**
+     * Currently exempt players.
+     */
+    private final Set<UUID> exempt = new HashSet<>();
+
+    @Override
+    public String getPluginName() {
+        return "Vulcan";
+    }
+
+    @Override
+    public void exempt(@NotNull final Player player) {
+        this.exempt.add(player.getUniqueId());
+    }
+
+    @Override
+    public void unexempt(@NotNull final Player player) {
+        this.exempt.remove(player.getUniqueId());
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST)
+    private void onViolate(@NotNull final VulcanFlagEvent event) {
+        if (!exempt.contains(event.getPlayer().getUniqueId())) {
+            return;
+        }
+
+        event.setCancelled(true);
+    }
+}

gradle.properties

@@ -1,2 +1,2 @@
-version = 5.0.0
+version = 5.2.0
 plugin-name = eco