Fixed several bugs

eco-core/core-plugin/src/main/java/com/willfp/ecobosses/bosses/LivingEcoBoss.java

@@ -94,6 +94,7 @@ public class LivingEcoBoss extends PluginDependent {
     private void onSpawn() {
         entity.getPersistentDataContainer().set(this.getPlugin().getNamespacedKeyFactory().create("boss"), PersistentDataType.STRING, boss.getName());
         entity.setPersistent(true);
+        entity.setRemoveWhenFarAway(false);
 
         entity.setCustomName(boss.getDisplayName());
         entity.setCustomNameVisible(true);

eco-core/core-plugin/src/main/java/com/willfp/ecobosses/bosses/listeners/AutoSpawnTimer.java

@@ -31,10 +31,6 @@ public class AutoSpawnTimer implements Runnable {
                 continue;
             }
 
-            if (!boss.getLivingBosses().isEmpty()) {
-                continue;
-            }
-
             Set<World> worlds = new HashSet<>();
 
             for (UUID uuid : boss.getLivingBosses().keySet()) {

eco-core/core-plugin/src/main/java/com/willfp/ecobosses/bosses/util/BossUtils.java

@@ -6,8 +6,10 @@ import com.willfp.ecobosses.bosses.EcoBosses;
 import com.willfp.ecobosses.bosses.util.obj.DamagerProperty;
 import lombok.experimental.UtilityClass;
 import org.bukkit.Bukkit;
+import org.bukkit.World;
 import org.bukkit.boss.BossBar;
 import org.bukkit.boss.KeyedBossBar;
+import org.bukkit.entity.Entity;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.persistence.PersistentDataType;
 import org.jetbrains.annotations.NotNull;
@@ -79,6 +81,16 @@ public class BossUtils {
      * @return The amount of bosses killed.
      */
     public int killAllBosses() {
+        return killAllBosses(false);
+    }
+
+    /**
+     * Kill all bosses.
+     *
+     * @param force If all entities should be checked for being bosses.
+     * @return The amount of bosses killed.
+     */
+    public int killAllBosses(final boolean force) {
         int amount = 0;
         for (EcoBoss boss : EcoBosses.values()) {
             for (UUID uuid : boss.getLivingBosses().keySet()) {
@@ -89,6 +101,22 @@ public class BossUtils {
             }
         }
 
+        if (force) {
+            for (World world : Bukkit.getWorlds()) {
+                for (Entity entity : world.getEntities()) {
+                    if (!(entity instanceof LivingEntity)) {
+                        continue;
+                    }
+
+                    if (BossUtils.getBoss((LivingEntity) entity) == null) {
+                        continue;
+                    }
+
+                    entity.remove();
+                }
+            }
+        }
+
         List<KeyedBossBar> bars = new ArrayList<>();
         Bukkit.getBossBars().forEachRemaining(bars::add);
         for (KeyedBossBar bar : bars) {

eco-core/core-plugin/src/main/java/com/willfp/ecobosses/commands/CommandEbkillall.java

@@ -21,6 +21,11 @@ public class CommandEbkillall extends AbstractCommand {
     @Override
     public void onExecute(@NotNull final CommandSender sender,
                           @NotNull final List<String> args) {
-        sender.sendMessage(this.getPlugin().getLangYml().getMessage("killall").replace("%amount%", String.valueOf(BossUtils.killAllBosses())));
+        boolean force = false;
+        if (args.size() == 1) {
+            force = args.get(0).equalsIgnoreCase("force");
+        }
+
+        sender.sendMessage(this.getPlugin().getLangYml().getMessage("killall").replace("%amount%", String.valueOf(BossUtils.killAllBosses(force))));
     }
 }