Rename main package group

src/main/java/net/rawmod/mineclass/utils/ClassItemPossessed.java

@@ -0,0 +1,42 @@
+package net.rawmod.mineclass.utils;
+
+import org.bukkit.inventory.ItemStack;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+public class ClassItemPossessed {
+  /** Instance unique pré-initialisée */
+  private static ClassItemPossessed INSTANCE;
+
+  private final HashMap<String, List<ItemStack>> itemsPossessed;
+
+  /** Constructeur privé */
+  private ClassItemPossessed() {
+    itemsPossessed = new HashMap<>();
+  }
+
+  /** Point d'accès pour l'instance unique du singleton */
+  public static synchronized ClassItemPossessed getInstance() {
+    if (INSTANCE == null) {
+      INSTANCE = new ClassItemPossessed();
+    }
+
+    return INSTANCE;
+  }
+
+  public synchronized void addItems(String playerName, List<ItemStack> itemStacks) {
+    List<ItemStack> itemStackList = itemsPossessed.getOrDefault(playerName, new ArrayList<>());
+    itemStackList.addAll(itemStacks);
+    itemsPossessed.put(playerName, itemStackList);
+  }
+
+  public synchronized void clearItems(String playerName) {
+    itemsPossessed.put(playerName, new ArrayList<>());
+  }
+
+  public synchronized List<ItemStack> getItems(String playerName) {
+    return itemsPossessed.getOrDefault(playerName, new ArrayList<>());
+  }
+}