From fdbb5258709690ff634035c3b6381b52a9c6339a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Elias=20M=C3=BCller?= <elias@elias-mueller.com>
Date: Mon, 7 Apr 2025 16:19:44 +0200
Subject: [PATCH] added forbiddenItems appliance with material detection

---
 .../forbiddenItems/ForbiddenItems.java        | 60 +++++++++++++++++++
 .../ForbiddenMaterialListener.java            | 45 ++++++++++++++
 2 files changed, 105 insertions(+)
 create mode 100644 varo/src/main/java/eu/mhsl/craftattack/spawn/varo/appliances/metaGameplay/forbiddenItems/ForbiddenItems.java
 create mode 100644 varo/src/main/java/eu/mhsl/craftattack/spawn/varo/appliances/metaGameplay/forbiddenItems/ForbiddenMaterialListener.java

diff --git a/varo/src/main/java/eu/mhsl/craftattack/spawn/varo/appliances/metaGameplay/forbiddenItems/ForbiddenItems.java b/varo/src/main/java/eu/mhsl/craftattack/spawn/varo/appliances/metaGameplay/forbiddenItems/ForbiddenItems.java
new file mode 100644
index 0000000..14d13b5
--- /dev/null
+++ b/varo/src/main/java/eu/mhsl/craftattack/spawn/varo/appliances/metaGameplay/forbiddenItems/ForbiddenItems.java
@@ -0,0 +1,60 @@
+package eu.mhsl.craftattack.spawn.varo.appliances.metaGameplay.forbiddenItems;
+
+import eu.mhsl.craftattack.core.appliance.Appliance;
+import org.bukkit.Material;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Villager;
+import org.bukkit.event.Listener;
+import org.bukkit.potion.PotionEffect;
+import org.bukkit.potion.PotionEffectType;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.List;
+import java.util.Set;
+import java.util.function.Function;
+
+public class ForbiddenItems extends Appliance {
+    Set<Function<Material, Boolean>> forbiddenMaterials = Set.of(
+        (material) -> material.name().startsWith("NETHERITE"),
+        (material) -> material.equals(Material.TOTEM_OF_UNDYING),
+        (material) -> material.equals(Material.END_CRYSTAL),
+        (material) -> material.equals(Material.MACE),
+        (material) -> material.equals(Material.ENCHANTED_GOLDEN_APPLE)
+    );
+
+    Set<Function<Entity, Boolean>> forbiddenEntities = Set.of(
+        (entity) -> {
+            if(!(entity instanceof Villager villager)) return false;
+            return List.of(
+                Villager.Profession.LIBRARIAN,
+                Villager.Profession.ARMORER
+            ).contains(villager.getProfession());
+        }
+    );
+
+    Set<Function<PotionEffect, Boolean>> forbiddenPotions = Set.of(
+        (potion) -> !potion.getType().equals(PotionEffectType.INSTANT_HEALTH) && potion.getAmplifier() >= 2
+    );
+
+    public boolean isForbidden(Material material) {
+        return this.forbiddenMaterials.stream()
+            .anyMatch(test -> test.apply(material));
+    }
+
+    public boolean isForbidden(Entity entity) {
+        return this.forbiddenEntities.stream()
+            .anyMatch(test -> test.apply(entity));
+    }
+
+    public boolean isForbidden(PotionEffect potionEffect) {
+        return this.forbiddenPotions.stream()
+            .anyMatch(test -> test.apply(potionEffect));
+    }
+
+    @Override
+    protected @NotNull List<Listener> listeners() {
+        return List.of(
+            new ForbiddenMaterialListener()
+        );
+    }
+}
diff --git a/varo/src/main/java/eu/mhsl/craftattack/spawn/varo/appliances/metaGameplay/forbiddenItems/ForbiddenMaterialListener.java b/varo/src/main/java/eu/mhsl/craftattack/spawn/varo/appliances/metaGameplay/forbiddenItems/ForbiddenMaterialListener.java
new file mode 100644
index 0000000..8e2c361
--- /dev/null
+++ b/varo/src/main/java/eu/mhsl/craftattack/spawn/varo/appliances/metaGameplay/forbiddenItems/ForbiddenMaterialListener.java
@@ -0,0 +1,45 @@
+package eu.mhsl.craftattack.spawn.varo.appliances.metaGameplay.forbiddenItems;
+
+import eu.mhsl.craftattack.core.appliance.ApplianceListener;
+import net.kyori.adventure.text.Component;
+import org.bukkit.Material;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.entity.EntityPickupItemEvent;
+import org.bukkit.event.inventory.ClickType;
+import org.bukkit.event.inventory.InventoryClickEvent;
+
+import java.util.List;
+
+class ForbiddenMaterialListener extends ApplianceListener<ForbiddenItems> {
+    @EventHandler
+    public void onPickup(EntityPickupItemEvent event) {
+        this.testAndCancel(event, event.getItem().getItemStack().getType(), event.getEntity());
+    }
+
+    @EventHandler
+    public void onInventoryInteraction(InventoryClickEvent event) {
+        if(event.getCurrentItem() == null) return;
+        if(List.of(ClickType.DROP, ClickType.CONTROL_DROP).contains(event.getClick())) return;
+        this.testAndCancel(event, event.getCurrentItem().getType(), event.getWhoClicked());
+    }
+
+    private void testAndCancel(Cancellable event, Material material, Entity entity) {
+        if(!this.getAppliance().isForbidden(material)) return;
+        event.setCancelled(true);
+
+        if(entity instanceof Player p) {
+            Component itemName = material.getItemTranslationKey() != null
+                ? Component.translatable(material.getItemTranslationKey())
+                : Component.text(material.name());
+
+            p.sendActionBar(
+                Component.text()
+                    .append(itemName)
+                    .append(Component.text(" ist ein verbotener Gegenstand!"))
+            );
+        }
+    }
+}