Added Crown

src/main/java/dev/zxq5/fantasysmp/items/Items.java

@@ -59,6 +59,7 @@ public class Items implements CommandExecutor {
         new Ender();
         new StevensWrath();
         new LightningSword();
+        new Crown();
 
         AppleJuice appleJuice = new AppleJuice();
         appleJuice.registerEvents(Fantasysmp.getPlugin());

src/main/java/dev/zxq5/fantasysmp/items/gear/Crown.java

@@ -0,0 +1,83 @@
+package dev.zxq5.fantasysmp.items.gear;
+
+import dev.zxq5.fantasysmp.Fantasysmp;
+import dev.zxq5.fantasysmp.items.presets.*;
+import org.bukkit.*;
+import org.bukkit.entity.Player;
+import org.bukkit.event.entity.EntityDamageByEntityEvent;
+import org.bukkit.event.entity.EntityDamageEvent;
+import org.bukkit.event.entity.EntityPotionEffectEvent;
+import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.potion.PotionEffect;
+import org.bukkit.potion.PotionEffectType;
+
+import java.util.*;
+
+public class Crown extends CustomSet {
+    public static Crown instance;
+    public static int tier = 5;
+
+    public Crown() {
+        super(tier);
+        instance = this;
+
+        this.helmetId = "Crown";
+        this.helmetName = "&eCrown";
+        this.helmetLore = List.of("Harness the power of a &eking.", "Gain permanent &cregeneration" + ChatColor.RESET + " and &fspeed" + ChatColor.RESET + " as your health decreases.");
+        this.helmetModel = 14338;
+
+        this.equipmentModel = "crown";
+        registerItems();
+        registerRecipes();
+        registerHandler();
+    }
+
+    public static Crown getInstance() {
+        if (instance == null) {
+            instance = new Crown();
+        }
+        return instance;
+    }
+
+    @Override
+    public void registerRecipes() {}
+
+    @Override
+    public void handleLeftClick(Player player, ItemStack itemStack, PlayerInteractEvent event) {}
+
+    @Override
+    public void handleRightClick(Player player, ItemStack itemStack, PlayerInteractEvent event) {}
+
+    @Override
+    public void onHit(Player player, ItemStack itemStack, EntityDamageByEntityEvent event) {}
+
+    @Override
+    public void onArmourChange(Player player, ItemStack item, boolean active) {
+        if(active) {
+            player.addPotionEffect(new PotionEffect(PotionEffectType.REGENERATION, Integer.MAX_VALUE, 0));
+            onHealthChange(player);
+        }else {
+            player.removePotionEffect(PotionEffectType.REGENERATION);
+            player.setWalkSpeed(0.2f);
+        }
+    }
+
+    @Override
+    public void onDamage(EntityDamageEvent event) {
+        Player player = (Player) event.getEntity();
+
+        onHealthChange(player);
+    }
+
+    public void onHealthChange(Player player) {
+        player.setWalkSpeed((float) (0.2f * (1 + (Math.min(20 - player.getHealth(), 16.0) / 16))));
+    }
+
+    @Override
+    public void onEffect(EntityPotionEffectEvent event) {}
+
+    private static void registerItems() {
+        Fantasysmp.registerItems(new CustomHelmet(instance, getInstance().helmetId));
+    }
+}

src/main/java/dev/zxq5/fantasysmp/items/gear/Dragon.java

@@ -4,6 +4,8 @@ import dev.zxq5.fantasysmp.Fantasysmp;
 import dev.zxq5.fantasysmp.items.presets.*;
 import org.bukkit.*;
 import org.bukkit.damage.DamageType;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Player;
 import org.bukkit.event.entity.EntityDamageByEntityEvent;
 import org.bukkit.event.entity.EntityDamageEvent;
@@ -160,9 +162,36 @@ public class Dragon extends CustomSet {
 
     @Override
     public void onDamage(EntityDamageEvent event) {
-        if (!(event.getDamageSource().getDamageType() == DamageType.FLY_INTO_WALL)) return;
+        if (!(event.getDamageSource().getDamageType() == DamageType.FLY_INTO_WALL || event.getDamageSource().getDamageType() == DamageType.FALL)) return;
 
-        event.setCancelled(true);
+        event.setDamage(event.getDamage() * 0.5);
+
+        Player player = (Player) event.getEntity();
+
+        double radius = 5.0;
+        double damage = 8.0;
+        double kb = 0.5;
+
+        if (event.getDamageSource().getDamageType() == DamageType.FLY_INTO_WALL) {
+            event.setDamage(event.getDamage() * 0.4);
+            radius = 3.0;
+            damage = 5.0;
+            kb = 0.3;
+        }
+
+        for (Entity entity : player.getNearbyEntities(radius, radius, radius)) {
+            if (entity instanceof LivingEntity target && entity != player) {
+                target.damage(damage, player);
+
+                Vector knockback = target.getLocation().toVector().subtract(player.getLocation().toVector()).normalize();
+                knockback.multiply(kb);
+                knockback.setY(0.5);
+                target.setVelocity(knockback);
+            }
+        }
+
+        player.getWorld().playSound(player.getLocation(), Sound.ENTITY_GENERIC_EXPLODE, 1f, 1f);
+        player.getWorld().spawnParticle(Particle.EXPLOSION, player.getLocation(), 30, 1, 1, 1, 0.1);
     }
 
     @Override

src/main/java/dev/zxq5/fantasysmp/items/presets/CustomItemHandler.java

@@ -1,6 +1,7 @@
 package dev.zxq5.fantasysmp.items.presets;
 
 import dev.zxq5.fantasysmp.Fantasysmp;
+import dev.zxq5.fantasysmp.items.gear.Crown;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
 import org.bukkit.entity.*;
@@ -8,10 +9,7 @@ import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
 import org.bukkit.event.block.Action;
-import org.bukkit.event.entity.EntityDamageByEntityEvent;
-import org.bukkit.event.entity.EntityDamageEvent;
-import org.bukkit.event.entity.EntityDeathEvent;
-import org.bukkit.event.entity.EntityPotionEffectEvent;
+import org.bukkit.event.entity.*;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.player.PlayerInteractEvent;
 import org.bukkit.inventory.ItemStack;
@@ -94,6 +92,12 @@ public class CustomItemHandler implements Listener {
 
     public void onArmourChange(Player player) {
 
+        if (getItemId(player.getInventory().getHelmet()).equals("Crown")) {
+            Crown.getInstance().onArmourChange(player, null, true);
+        } else {
+            Crown.getInstance().onArmourChange(player, null, false);
+        }
+
         CustomSet customSet = getSet(player);
 
         if(customSet == null && active != null) {
@@ -123,14 +127,14 @@ public class CustomItemHandler implements Listener {
                     customSet.onDamage(event);
                 }
             }
-        } else {
+        }
+
         CustomSet customSet = getSet(player);
 
         if (customSet == null) return;
 
         customSet.onDamage(event);
     }
-    }
 
     @EventHandler
     public void onEffect(EntityPotionEffectEvent event) {
@@ -143,6 +147,16 @@ public class CustomItemHandler implements Listener {
         customSet.onEffect(event);
     }
 
+    @EventHandler
+    public void onPlayerHeal(EntityRegainHealthEvent event) {
+        if (!(event.getEntity() instanceof Player player)) return;
+
+        if (getItemId(player.getInventory().getHelmet()).equals("Crown")) {
+            Crown.getInstance().onHealthChange(player);
+        }
+    }
+
+
     @EventHandler
     public void onDeath(EntityDeathEvent event) {
         if (event.getEntity() instanceof Mob mob) {
@@ -161,6 +175,9 @@ public class CustomItemHandler implements Listener {
     }
 
     private static String getItemId(ItemStack itemStack) {
+        if(itemStack == null || !itemStack.hasItemMeta()){
+            return "";
+        }
         return itemStack.getItemMeta().getPersistentDataContainer().get(Fantasysmp.customItemKey, PersistentDataType.STRING);
     }
 
@@ -179,6 +196,10 @@ public class CustomItemHandler implements Listener {
             if ((customHelmet instanceof CustomHelmet custHelmet) && (customChestplate instanceof CustomChestplate custChestplate) && (customLeggings instanceof CustomLeggings custLeggings) && (customBoots instanceof CustomBoots custBoots)) {
                 CustomSet customSet = custHelmet.getSet();
 
+                if (getItemId(helmet).equals("Crown")) {
+                    customSet = custChestplate.getSet();
+                }
+
                 if(customSet.equals(custChestplate.getSet()) && customSet.equals(custLeggings.getSet()) && customSet.equals(custBoots.getSet())) {
                     return customSet;
                 }