Add method to get all items from equipment slots

src/games/stendhal/common/Constants.java

@@ -15,6 +15,11 @@ package games.stendhal.common;
  * General constants.
  */
 public final class Constants {
+
+	public static final String[] EQUIPMENT_SLOTS = {
+		"head", "rhand", "lhand", "armor", "finger", "cloak", "legs", "feet"
+	};
+
 	/**
 	 * All the slots considered to be "with" the entity. Listed in priority
 	 * order (i.e. bag first).

src/games/stendhal/server/entity/RPEntity.java

@@ -2378,6 +2378,18 @@ public abstract class RPEntity extends CombatEntity {
 		return equippedStream().filter(condition).collect(Collectors.toList());
 	}
 
+	/**
+	 * Retrieves items carried in equipment slots (weapons, armor, etc.).
+	 *
+	 * @return
+	 *   Equipped items.
+	 */
+	protected List<Item> getAllEquipment() {
+		final Stream<String> slotNames = Slots.EQUIPMENT.getNames().stream();
+		final Stream<RPSlot> slots = slotNames.map(this::getSlot).filter(Objects::nonNull);
+		return slots.flatMap(this::slotStream).collect(Collectors.toList());
+	}
+
 	/**
 	 * Retrieves all of an item with matching info string.
 	 *
@@ -3451,6 +3463,8 @@ public abstract class RPEntity extends CombatEntity {
 	/**
 	 * Get a stream of all equipped items.
 	 *
+	 * FIXME: perhaps should be renamed to avoid confusion with equipment slots (weapons, armor, etc.)
+	 *
 	 * @return equipped items
 	 */
 	protected Stream<Item> equippedStream() {

src/games/stendhal/server/entity/slot/Slots.java

@@ -1,5 +1,5 @@
 /***************************************************************************
- *                   (C) Copyright 2014 - Faiumoni e. V.                   *
+ *                (C) Copyright 2014-2024 - Faiumoni e. V.                 *
  ***************************************************************************
  ***************************************************************************
  *                                                                         *
@@ -22,6 +22,8 @@ import games.stendhal.common.Constants;
  */
 public enum Slots {
 
+	/** Slots where equipment can be carried for use (weapons, armor, and rings). */
+	EQUIPMENT(ImmutableList.copyOf(Constants.EQUIPMENT_SLOTS)),
 	/**
 	 * slots which may be carried by an entity (e. g. a bag)
 	 */