damage cause on health and player kill event

src/main/java/me/unurled/sacredrealms/sr/components/combat/CombatManager.java

@@ -23,6 +23,7 @@ import org.bukkit.event.EventHandler;
 import org.bukkit.event.entity.EntityDamageByBlockEvent;
 import org.bukkit.event.entity.EntityDamageByEntityEvent;
 import org.bukkit.event.entity.EntityDamageEvent;
+import org.bukkit.event.entity.EntityDamageEvent.DamageCause;
 import org.bukkit.inventory.EntityEquipment;
 import org.jetbrains.annotations.NotNull;
 
@@ -206,7 +207,7 @@ public class CombatManager extends Manager {
 
         SRPlayer player1 = pm.getPlayer(player.getUniqueId());
         if (player1 != null) {
-          player1.setHealth(player.getHealth() - damage);
+          player1.setHealth(player.getHealth() - damage, DamageCause.ENTITY_ATTACK);
           if (player1.getHealth() <= 0) {
             player.damage(player.getHealth());
           }

src/main/java/me/unurled/sacredrealms/sr/components/player/SRPlayer.java

@@ -10,8 +10,10 @@ import java.util.List;
 import java.util.UUID;
 import me.unurled.sacredrealms.sr.components.attributes.Attribute;
 import me.unurled.sacredrealms.sr.components.item.Item;
+import me.unurled.sacredrealms.sr.events.player.PlayerKillEvent;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
+import org.bukkit.event.entity.EntityDamageEvent.DamageCause;
 import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
@@ -31,22 +33,15 @@ public class SRPlayer {
   private double health = 100;
   @Expose private HashMap<Attribute, Double> attributes = new HashMap<>();
   private HashMap<Attribute, HashMap<ItemStack, Double>> itemAttributes = new HashMap<>();
-  @Expose private List<PotionEffect> potionEffects;
-  @Expose private Inventory inventory;
+  @Expose private List<PotionEffect> potionEffects = new ArrayList<>();
+  @Expose private Inventory inventory = null;
 
   public SRPlayer(@NotNull UUID uuid) {
     this.uuid = uuid;
-    Player player = Bukkit.getPlayer(uuid);
-    this.inventory = (player != null) ? player.getInventory() : null;
-    this.itemAttributes = new HashMap<>();
-    this.potionEffects = new ArrayList<>();
   }
 
   public SRPlayer(@NotNull Player player) {
     this.uuid = player.getUniqueId();
-    this.inventory = player.getInventory();
-    this.itemAttributes = new HashMap<>();
-    this.potionEffects = (List<PotionEffect>) player.getActivePotionEffects();
   }
 
   @NotNull
@@ -236,7 +231,13 @@ public class SRPlayer {
     return health;
   }
 
-  public void setHealth(double health) {
+  public void setHealth(double health, DamageCause cause) {
+    if (health < 0) {
+      health = 0;
+      // kill player
+      PlayerKillEvent event = new PlayerKillEvent(this, cause);
+      Bukkit.getPluginManager().callEvent(event);
+    }
     this.health = health;
   }
 

src/main/java/me/unurled/sacredrealms/sr/events/player/PlayerKillEvent.java

@@ -0,0 +1,37 @@
+package me.unurled.sacredrealms.sr.events.player;
+
+import me.unurled.sacredrealms.sr.components.player.SRPlayer;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.entity.EntityDamageEvent.DamageCause;
+import org.jetbrains.annotations.NotNull;
+
+public class PlayerKillEvent extends Event {
+
+  private static final HandlerList HANDLERS = new HandlerList();
+  private final SRPlayer player;
+  private final DamageCause cause;
+
+  public PlayerKillEvent(SRPlayer player, DamageCause cause) {
+    super(false);
+    this.player = player;
+    this.cause = cause;
+  }
+
+  public static HandlerList getHandlerList() {
+    return HANDLERS;
+  }
+
+  @Override
+  public @NotNull HandlerList getHandlers() {
+    return HANDLERS;
+  }
+
+  public SRPlayer getPlayer() {
+    return player;
+  }
+
+  public DamageCause getCause() {
+    return cause;
+  }
+}

src/main/java/me/unurled/sacredrealms/sr/utils/SRPlayerUtils.java

@@ -56,9 +56,9 @@ public class SRPlayerUtils {
   }
 
   public static void updateActionBar(@NotNull Player p, @NotNull SRPlayer sr) {
-    double maxHealth = sr.getAttribute(Attribute.HEALTH);
-    double health = sr.getHealth();
-    double mana = sr.getAttribute(Attribute.MANA);
+    int maxHealth = (int) sr.getAttribute(Attribute.HEALTH);
+    int health = (int) sr.getHealth();
+    int mana = (int) sr.getAttribute(Attribute.MANA);
 
     net.kyori.adventure.text.Component text =
         comp("<red>❤ " + health + "/" + maxHealth + " <blue>❈ " + mana);