diff --git a/src/main/java/xyz/soukup/mineconomiaCoreV2/core/MsgRetriever.java b/src/main/java/xyz/soukup/mineconomiaCoreV2/core/MsgRetriever.java
index 11181ea..1f001ab 100644
--- a/src/main/java/xyz/soukup/mineconomiaCoreV2/core/MsgRetriever.java
+++ b/src/main/java/xyz/soukup/mineconomiaCoreV2/core/MsgRetriever.java
@@ -1,11 +1,13 @@
 package xyz.soukup.mineconomiaCoreV2.core;
 
 import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.inventory.Inventory;
 
 import static xyz.soukup.mineconomiaCoreV2.core.sharedValues.config;
 import static xyz.soukup.mineconomiaCoreV2.core.sharedValues.plugin;
 
 public class MsgRetriever {
+
     public static YamlConfiguration lang = null;
     public static void  loadLang(){
         String langPath = "lang/" + config.getString("lang");
diff --git a/src/main/java/xyz/soukup/mineconomiaCoreV2/core/PDC.java b/src/main/java/xyz/soukup/mineconomiaCoreV2/core/PDC.java
index bf5f637..2d76800 100644
--- a/src/main/java/xyz/soukup/mineconomiaCoreV2/core/PDC.java
+++ b/src/main/java/xyz/soukup/mineconomiaCoreV2/core/PDC.java
@@ -7,41 +7,56 @@ import org.bukkit.inventory.meta.ItemMeta;
 import org.bukkit.persistence.PersistentDataContainer;
 import org.bukkit.persistence.PersistentDataType;
 
+//funkce pro lehčí manipulaci s minecraft PDC (trvalé uchovávání dat v entitách, itemech a blocích)
 public class PDC {
+
+    //Zapíše hodnotu do hráče
     public static void WritePlayerPDC(Player player, String key, PersistentDataType type, Object value){
         NamespacedKey nKey = new NamespacedKey(sharedValues.plugin, key);
         PersistentDataContainer pdc = player.getPersistentDataContainer();
         pdc.set(nKey, type, value);
 
     }
+
+    //Vezme hodnotu z hráče
     public static Object GetPlayerPDC(Player player, String key, PersistentDataType type){
         NamespacedKey nKey = new NamespacedKey(sharedValues.plugin, key);
         PersistentDataContainer pdc = player.getPersistentDataContainer();
         return pdc.get(nKey, type);
     }
+
+    //Odstraní hodnotu z hráče
     public static void DeletePlayerPDC(Player player, String key){
         NamespacedKey nKey = new NamespacedKey(sharedValues.plugin, key);
         PersistentDataContainer pdc = player.getPersistentDataContainer();
         pdc.remove(nKey);
 
     }
+
+    //Zapíše hodnotu do itemu
     public static void WriteItemMetaPDC(ItemMeta itemMeta, String key, PersistentDataType type, Object value){
         NamespacedKey nKey = new NamespacedKey(sharedValues.plugin, key);
         PersistentDataContainer pdc = itemMeta.getPersistentDataContainer();
         pdc.set(nKey, type, value);
 
     }
+
+    //Odstraní hodnotu z itemu
     public static Object GetItemMetaPDC(ItemMeta itemMeta, String key, PersistentDataType type){
         NamespacedKey nKey = new NamespacedKey(sharedValues.plugin, key);
         PersistentDataContainer pdc = itemMeta.getPersistentDataContainer();
         return pdc.get(nKey, type);
     }
+
+    //Zapíše hodnotu do statusu bloku
     public static void WriteTileStatePDC(TileState tileState, String key, PersistentDataType type, Object value){
         NamespacedKey nKey = new NamespacedKey(sharedValues.plugin, key);
         PersistentDataContainer pdc = tileState.getPersistentDataContainer();
         pdc.set(nKey, type, value);
 
     }
+
+    //Vezme hodnotu ze statusu bloku
     public static Object GetTileStatePDC(TileState tileState, String key, PersistentDataType type){
         NamespacedKey nKey = new NamespacedKey(sharedValues.plugin, key);
         PersistentDataContainer pdc = tileState.getPersistentDataContainer();