diff --git a/src/main/resources/Addons/TabooLibDeprecated b/src/main/resources/Addons/TabooLibDeprecated
index bf21513..7074699 100644
Binary files a/src/main/resources/Addons/TabooLibDeprecated and b/src/main/resources/Addons/TabooLibDeprecated differ
diff --git a/src/main/scala/com/ilummc/tlib/bungee/api/chat/TranslatableComponent.java b/src/main/scala/com/ilummc/tlib/bungee/api/chat/TranslatableComponent.java
index 796b749..23e3864 100644
--- a/src/main/scala/com/ilummc/tlib/bungee/api/chat/TranslatableComponent.java
+++ b/src/main/scala/com/ilummc/tlib/bungee/api/chat/TranslatableComponent.java
@@ -69,11 +69,11 @@ public final class TranslatableComponent extends BaseComponent {
      * Creates a translatable component with the passed substitutions
      *
      * @param translate the translation key
-     * @param with      the {@link java.lang.String}s and
+     * @param with      the {@link String}s and
      *                  {@link BaseComponent}s to use into the
      *                  translation
      * @see #translate
-     * @see #setWith(java.util.List)
+     * @see #setWith(List)
      */
     public TranslatableComponent(String translate, Object... with) {
         setTranslate(translate);
diff --git a/src/main/scala/me/skymc/taboolib/Main.java b/src/main/scala/me/skymc/taboolib/Main.java
index 627ab6e..bd37d87 100644
--- a/src/main/scala/me/skymc/taboolib/Main.java
+++ b/src/main/scala/me/skymc/taboolib/Main.java
@@ -7,6 +7,7 @@ import com.ilummc.tlib.util.IO;
 import com.ilummc.tlib.util.Strings;
 import me.skymc.taboolib.database.GlobalDataManager;
 import me.skymc.taboolib.database.PlayerDataManager;
+import me.skymc.taboolib.economy.EcoUtils;
 import me.skymc.taboolib.fileutils.ConfigUtils;
 import me.skymc.taboolib.fileutils.FileUtils;
 import me.skymc.taboolib.listener.TListenerHandler;
@@ -16,8 +17,6 @@ import me.skymc.taboolib.other.NumberUtils;
 import me.skymc.taboolib.playerdata.DataUtils;
 import me.skymc.taboolib.socket.TabooLibClient;
 import me.skymc.taboolib.socket.TabooLibServer;
-import me.skymc.taboolib.string.language2.Language2;
-import net.milkbowl.vault.economy.Economy;
 import org.bukkit.Bukkit;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.plugin.Plugin;
@@ -45,11 +44,9 @@ public class Main extends JavaPlugin {
     }
 
     private static Plugin inst;
-    private static Economy economy;
     private static File playerDataFolder;
     private static File serverDataFolder;
     private static StorageType storageType = StorageType.LOCAL;
-    private static Language2 exampleLanguage2;
     private static boolean disable = false;
     private static boolean started = false;
     private static boolean isInternetOnline = false;
@@ -138,8 +135,6 @@ public class Main extends JavaPlugin {
         }.runTask(this);
         // 启动
         started = true;
-        // 载入语言文件
-        exampleLanguage2 = new Language2("Language2", this);
     }
 
     @Override
@@ -198,14 +193,6 @@ public class Main extends JavaPlugin {
         return "§8[§3§lTabooLib§8] §7";
     }
 
-    public static net.milkbowl.vault.economy.Economy getEconomy() {
-        return economy;
-    }
-
-    public static void setEconomy(Economy economy) {
-        Main.economy = economy;
-    }
-
     public static File getPlayerDataFolder() {
         return playerDataFolder;
     }
@@ -222,26 +209,10 @@ public class Main extends JavaPlugin {
         return disable;
     }
 
-    public static MySQLConnection getConnection() {
-        return null;
-    }
-
-    public static Language2 getExampleLanguage2() {
-        return exampleLanguage2;
-    }
-
     public static boolean isStarted() {
         return started;
     }
 
-    public static Random getRandom() {
-        return NumberUtils.getRandom();
-    }
-
-    public static String getTablePrefix() {
-        return inst.getConfig().getString("MYSQL.PREFIX");
-    }
-
     public static boolean isInternetOnline() {
         return isInternetOnline;
     }
@@ -254,6 +225,26 @@ public class Main extends JavaPlugin {
         return TLib.getTLib().getLibsFolder().listFiles().length > 0;
     }
 
+    @Deprecated
+    public static Random getRandom() {
+        return NumberUtils.getRandom();
+    }
+
+    @Deprecated
+    public static String getTablePrefix() {
+        return inst.getConfig().getString("MYSQL.PREFIX");
+    }
+
+    @Deprecated
+    public static MySQLConnection getConnection() {
+        return null;
+    }
+
+    @Deprecated
+    public static net.milkbowl.vault.economy.Economy getEconomy() {
+        return EcoUtils.getEconomy();
+    }
+
     // *********************************
     //
     //        Private Setter
diff --git a/src/main/scala/me/skymc/taboolib/TabooLibLoader.java b/src/main/scala/me/skymc/taboolib/TabooLibLoader.java
index 8d4ada2..8048b8f 100644
--- a/src/main/scala/me/skymc/taboolib/TabooLibLoader.java
+++ b/src/main/scala/me/skymc/taboolib/TabooLibLoader.java
@@ -160,11 +160,13 @@ public class TabooLibLoader implements Listener {
     }
 
     static void setupAddons() {
-        TabooLib.instance().saveResource("Addons/TabooLibDeprecated", true);
+        File origin = new File(TabooLib.instance().getDataFolder(), "Addons/TabooLibDeprecated.jar");
+        origin.delete();
         // 傻逼 Gradle 的 shadow 插件会将所有 jar 排除
         // https://github.com/johnrengelman/shadow/issues/276
+        TabooLib.instance().saveResource("Addons/TabooLibDeprecated", true);
         File from = new File(TabooLib.instance().getDataFolder(), "Addons/TabooLibDeprecated");
-        from.renameTo(new File(TabooLib.instance().getDataFolder(), "Addons/TabooLibDeprecated.jar"));
+        from.renameTo(origin);
         from.delete();
         File file = new File(TabooLib.instance().getDataFolder(), "Addons");
         if (file.exists()) {
diff --git a/src/main/scala/me/skymc/taboolib/bstats/Metrics.java b/src/main/scala/me/skymc/taboolib/bstats/Metrics.java
index 3685992..89db7bf 100644
--- a/src/main/scala/me/skymc/taboolib/bstats/Metrics.java
+++ b/src/main/scala/me/skymc/taboolib/bstats/Metrics.java
@@ -17,6 +17,7 @@ import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
 import java.util.*;
 import java.util.concurrent.Callable;
 import java.util.logging.Level;
@@ -171,7 +172,7 @@ public class Metrics {
         }
         ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
         GZIPOutputStream gzip = new GZIPOutputStream(outputStream);
-        gzip.write(str.getBytes("UTF-8"));
+        gzip.write(str.getBytes(StandardCharsets.UTF_8));
         gzip.close();
         return outputStream.toByteArray();
     }
@@ -262,7 +263,7 @@ public class Metrics {
             playerAmount = Bukkit.getOnlinePlayers().size(); // Just use the new method if the Reflection failed
         }
         int onlineMode = Bukkit.getOnlineMode() ? 1 : 0;
-        String bukkitVersion = org.bukkit.Bukkit.getVersion();
+        String bukkitVersion = Bukkit.getVersion();
         bukkitVersion = bukkitVersion.substring(bukkitVersion.indexOf("MC: ") + 4, bukkitVersion.length() - 1);
 
         // OS/Java specific data
diff --git a/src/main/scala/me/skymc/taboolib/common/serialize/DoNotSerialize.java b/src/main/scala/me/skymc/taboolib/common/serialize/DoNotSerialize.java
new file mode 100644
index 0000000..cd72c13
--- /dev/null
+++ b/src/main/scala/me/skymc/taboolib/common/serialize/DoNotSerialize.java
@@ -0,0 +1,16 @@
+package me.skymc.taboolib.common.serialize;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * @Author sky
+ * @Since 2018-10-05 12:11
+ */
+@Target(ElementType.FIELD)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface DoNotSerialize {
+
+}
\ No newline at end of file
diff --git a/src/main/scala/me/skymc/taboolib/common/serialize/TSerializable.java b/src/main/scala/me/skymc/taboolib/common/serialize/TSerializable.java
index 2529adf..f57ae2a 100644
--- a/src/main/scala/me/skymc/taboolib/common/serialize/TSerializable.java
+++ b/src/main/scala/me/skymc/taboolib/common/serialize/TSerializable.java
@@ -1,20 +1,34 @@
 package me.skymc.taboolib.common.serialize;
 
+import java.nio.charset.StandardCharsets;
+import java.util.Base64;
+
 /**
  * @Author 坏黑
  * @Since 2019-03-08 17:28
  */
 public interface TSerializable {
 
-    void read(String fieldName, String value);
+    default void read(String fieldName, String value) {
+    }
 
-    String write(String fieldName, Object value);
+    default String write(String fieldName, Object value) {
+        return null;
+    }
 
-    default void read(String value) {
-        TSerializer.read(this, value);
+    default Object read(String value) {
+        return TSerializer.read(this, value);
     }
 
     default String write() {
         return TSerializer.write(this);
     }
+
+    default Object readBase64(String value) {
+        return TSerializer.read(this, new String(Base64.getDecoder().decode(value), StandardCharsets.UTF_8));
+    }
+
+    default String writeBase64() {
+        return Base64.getEncoder().encodeToString(TSerializer.write(this).getBytes(StandardCharsets.UTF_8));
+    }
 }
\ No newline at end of file
diff --git a/src/main/scala/me/skymc/taboolib/common/serialize/TSerializer.java b/src/main/scala/me/skymc/taboolib/common/serialize/TSerializer.java
index d89ce4b..95b385d 100644
--- a/src/main/scala/me/skymc/taboolib/common/serialize/TSerializer.java
+++ b/src/main/scala/me/skymc/taboolib/common/serialize/TSerializer.java
@@ -30,6 +30,9 @@ public class TSerializer {
                     try {
                         Field declaredField = serializable.getClass().getDeclaredField(jsonElementEntry.getKey());
                         declaredField.setAccessible(true);
+                        if (declaredField.isAnnotationPresent(DoNotSerialize.class)) {
+                            continue;
+                        }
                         Optional<TSerializerElementGeneral> serializer = Arrays.stream(TSerializerElementGeneral.values()).filter(serializerElements -> serializerElements.getSerializer().matches(declaredField.getType())).findFirst();
                         if (serializer.isPresent()) {
                             declaredField.set(serializable, serializer.get().getSerializer().read(jsonElementEntry.getValue().getAsString()));
@@ -56,13 +59,13 @@ public class TSerializer {
         JsonObject serializeObject = new JsonObject();
         for (Field declaredField : serializable.getClass().getDeclaredFields()) {
             try {
-                if (!Modifier.isStatic(declaredField.getModifiers())) {
+                if (!declaredField.isAnnotationPresent(DoNotSerialize.class) && !Modifier.isStatic(declaredField.getModifiers())) {
                     declaredField.setAccessible(true);
-                    Optional<TSerializerElementGeneral> serializer = Arrays.stream(TSerializerElementGeneral.values()).filter(serializerElements -> serializerElements.getSerializer().matches(declaredField.getType())).findFirst();
                     Object o = declaredField.get(serializable);
                     if (o == null) {
                         continue;
                     }
+                    Optional<TSerializerElementGeneral> serializer = Arrays.stream(TSerializerElementGeneral.values()).filter(serializerElements -> serializerElements.getSerializer().matches(declaredField.getType())).findFirst();
                     if (serializer.isPresent()) {
                         serializeObject.addProperty(declaredField.getName(), serializer.get().getSerializer().write(o));
                     } else {
diff --git a/src/main/scala/me/skymc/taboolib/common/serialize/TSerializerElement.java b/src/main/scala/me/skymc/taboolib/common/serialize/TSerializerElement.java
index 3232eab..e660389 100644
--- a/src/main/scala/me/skymc/taboolib/common/serialize/TSerializerElement.java
+++ b/src/main/scala/me/skymc/taboolib/common/serialize/TSerializerElement.java
@@ -8,7 +8,7 @@ public interface TSerializerElement<T> {
 
     T read(String value);
 
-    String write(Object value);
+    String write(T value);
 
     boolean matches(Class objectClass);
 
diff --git a/src/main/scala/me/skymc/taboolib/common/serialize/TSerializerExample.java b/src/main/scala/me/skymc/taboolib/common/serialize/TSerializerExample.java
index 1d5d8a5..d80333b 100644
--- a/src/main/scala/me/skymc/taboolib/common/serialize/TSerializerExample.java
+++ b/src/main/scala/me/skymc/taboolib/common/serialize/TSerializerExample.java
@@ -1,9 +1,11 @@
 package me.skymc.taboolib.common.serialize;
 
+import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Lists;
 
 import java.util.Collection;
 import java.util.List;
+import java.util.Map;
 
 /**
  * @Author 坏黑
@@ -17,13 +19,13 @@ public class TSerializerExample {
         // 修改参数
         date.number = 100;
         // 序列化
-        String value = date.write();
+        String value = date.writeBase64();
         // 打印
         System.out.println(value);
         // 创建新的对象
         SimpleData dataCopy = new SimpleData();
         // 反序列化
-        dataCopy.read(value);
+        dataCopy.readBase64(value);
         // 打印
         System.out.println(dataCopy);
     }
@@ -38,13 +40,24 @@ public class TSerializerExample {
          * 基本类型不需要手动进行序列化
          * 包含: String、int、short、long、double、float、boolean、ItemStack、Location
          */
-        private String text;
-        private int number;
+        private String text = "123";
+        private int number = 100;
+
         /**
          * 特殊类型需要进行手动序列化
-         * 本工具提供了基本容器的序列化方法
+         * 标注 @TSerializeCollection 或 @TSerializeMap 来进行自动序列化（未完成）
          */
-        private List<Double> list = Lists.newArrayList();
+//        @TSerializeCollection
+        private List<Double> list = Lists.newArrayList(1.0, 2.0, 3.0);
+
+//        @TSerializeMap
+        private Map<String, String> map = ImmutableMap.of("abc", "def");
+
+        /**
+         * 跳过序列化
+         */
+        @DoNotSerialize
+        private String ignoreSerialize = "aaa";
 
         /**
          * 基本类型不会执行以下两个方法
@@ -52,23 +65,16 @@ public class TSerializerExample {
          */
         @Override
         public void read(String fieldName, String value) {
-            switch (fieldName) {
-                case "list": {
-                    // List 类型可以直接通过 TSerializer 提供的预设方法进行反序列化
-                    TSerializer.readCollection(list, value, TSerializerElementGeneral.DOUBLE);
-                    break;
-                }
-                default:
+            if (fieldName.equals("list")) {
+                // List 类型可以直接通过 TSerializer 提供的预设方法进行反序列化
+                TSerializer.readCollection(list, value, TSerializerElementGeneral.DOUBLE);
             }
         }
 
         @Override
         public String write(String fieldName, Object value) {
-            switch (fieldName) {
-                case "list": {
-                    // 序列化同理
-                    return TSerializer.writeCollection((Collection) value, TSerializerElementGeneral.DOUBLE);
-                }
+            if (fieldName.equals("list")) {
+                return TSerializer.writeCollection((Collection) value, TSerializerElementGeneral.DOUBLE);
             }
             return null;
         }
@@ -79,6 +85,7 @@ public class TSerializerExample {
                     "text='" + text + '\'' +
                     ", number=" + number +
                     ", list=" + list +
+                    ", ignoreSerialize='" + ignoreSerialize + '\'' +
                     '}';
         }
     }
diff --git a/src/main/scala/me/skymc/taboolib/common/serialize/container/TSerializeCollection.java b/src/main/scala/me/skymc/taboolib/common/serialize/container/TSerializeCollection.java
new file mode 100644
index 0000000..8b3a3f2
--- /dev/null
+++ b/src/main/scala/me/skymc/taboolib/common/serialize/container/TSerializeCollection.java
@@ -0,0 +1,24 @@
+package me.skymc.taboolib.common.serialize.container;
+
+import me.skymc.taboolib.common.serialize.TSerializerElement;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.util.ArrayList;
+import java.util.Collection;
+
+/**
+ * @Author sky
+ * @Since 2018-10-05 12:11
+ */
+@Target(ElementType.FIELD)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface TSerializeCollection {
+
+    Class<? extends Collection> type() default ArrayList.class;
+
+    Class<? extends TSerializerElement> element() default TSerializerElement.class;
+
+}
\ No newline at end of file
diff --git a/src/main/scala/me/skymc/taboolib/common/serialize/container/TSerializeMap.java b/src/main/scala/me/skymc/taboolib/common/serialize/container/TSerializeMap.java
new file mode 100644
index 0000000..520d33f
--- /dev/null
+++ b/src/main/scala/me/skymc/taboolib/common/serialize/container/TSerializeMap.java
@@ -0,0 +1,20 @@
+package me.skymc.taboolib.common.serialize.container;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * @Author sky
+ * @Since 2018-10-05 12:11
+ */
+@Target(ElementType.FIELD)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface TSerializeMap {
+
+    Class<? extends Map> type() default HashMap.class;
+
+}
\ No newline at end of file
diff --git a/src/main/scala/me/skymc/taboolib/listener/TListenerHandler.java b/src/main/scala/me/skymc/taboolib/listener/TListenerHandler.java
index 4471817..f79bbe0 100644
--- a/src/main/scala/me/skymc/taboolib/listener/TListenerHandler.java
+++ b/src/main/scala/me/skymc/taboolib/listener/TListenerHandler.java
@@ -47,7 +47,7 @@ public class TListenerHandler implements Listener {
      */
     public static void setupListener(Plugin plugin) {
         for (Class<?> pluginClass : TabooLibLoader.getPluginClassSafely(plugin)) {
-            if (org.bukkit.event.Listener.class.isAssignableFrom(pluginClass) && pluginClass.isAnnotationPresent(TListener.class)) {
+            if (Listener.class.isAssignableFrom(pluginClass) && pluginClass.isAnnotationPresent(TListener.class)) {
                 try {
                     TListener tListener = pluginClass.getAnnotation(TListener.class);
                     // 检查注册条件
diff --git a/src/main/scala/me/skymc/taboolib/mysql/builder/SQLColumn.java b/src/main/scala/me/skymc/taboolib/mysql/builder/SQLColumn.java
index d8debe1..d154939 100644
--- a/src/main/scala/me/skymc/taboolib/mysql/builder/SQLColumn.java
+++ b/src/main/scala/me/skymc/taboolib/mysql/builder/SQLColumn.java
@@ -32,9 +32,7 @@ public class SQLColumn extends IColumn {
 
     /**
      * CHAR 类型常用构造器
-     *
-     * @param columnType
-     * @param columnName
+     * new SQLColumn(SQLColumnType.CHAR, 1, "data");
      */
     public SQLColumn(SQLColumnType columnType, int m, String columnName) {
         this(columnType, m, 0, columnName, null);
@@ -56,6 +54,10 @@ public class SQLColumn extends IColumn {
         this(columnType, 0, 0, columnName, defaultValue);
     }
 
+    public SQLColumn(SQLColumnType columnType, String columnName, Object defaultValue, SQLColumnOption... columnOptions) {
+        this(columnType, 0, 0, columnName, defaultValue, columnOptions);
+    }
+
     /**
      * 完整构造器
      *
diff --git a/src/main/scala/me/skymc/taboolib/mysql/builder/SQLTable.java b/src/main/scala/me/skymc/taboolib/mysql/builder/SQLTable.java
index 4e3412d..159e046 100644
--- a/src/main/scala/me/skymc/taboolib/mysql/builder/SQLTable.java
+++ b/src/main/scala/me/skymc/taboolib/mysql/builder/SQLTable.java
@@ -49,11 +49,11 @@ public class SQLTable {
     }
 
     public String deleteQuery() {
-        return Strings.replaceWithOrder("drop table if exists `{0}`" + tableName);
+        return Strings.replaceWithOrder("drop table if exists `{0}`", tableName);
     }
 
     public String cleanQuery() {
-        return Strings.replaceWithOrder("delete from `{0}`" + tableName);
+        return Strings.replaceWithOrder("delete from `{0}`", tableName);
     }
 
     public String truncateQuery() {
diff --git a/src/main/scala/me/skymc/taboolib/mysql/builder/query/RunnableQuery.java b/src/main/scala/me/skymc/taboolib/mysql/builder/query/RunnableQuery.java
index e76479f..c3f016d 100644
--- a/src/main/scala/me/skymc/taboolib/mysql/builder/query/RunnableQuery.java
+++ b/src/main/scala/me/skymc/taboolib/mysql/builder/query/RunnableQuery.java
@@ -19,6 +19,7 @@ public class RunnableQuery {
     private TaskStatement statement;
     private TaskResult result;
     private TaskResult resultNext;
+    private TaskResult resultAutoNext;
     private Connection connection;
     private boolean autoClose;
     private String query;
@@ -47,6 +48,11 @@ public class RunnableQuery {
         return this;
     }
 
+    public RunnableQuery resultAutoNext(TaskResult result) {
+        this.resultAutoNext = result;
+        return this;
+    }
+
     public RunnableQuery connection(Connection connection) {
         return connection(connection, false);
     }
@@ -113,6 +119,12 @@ public class RunnableQuery {
             return resultNext.execute(resultSet);
         } else if (result != null) {
             return result.execute(resultSet);
+        } else if (resultAutoNext != null) {
+            Object result = null;
+            while (resultSet.next()) {
+                result = resultAutoNext.execute(resultSet);
+            }
+            return result;
         } else {
             return null;
         }
diff --git a/src/main/scala/me/skymc/taboolib/mysql/sqlite/SQLiteColumn.java b/src/main/scala/me/skymc/taboolib/mysql/sqlite/SQLiteColumn.java
index 4b7098b..c28cf07 100644
--- a/src/main/scala/me/skymc/taboolib/mysql/sqlite/SQLiteColumn.java
+++ b/src/main/scala/me/skymc/taboolib/mysql/sqlite/SQLiteColumn.java
@@ -30,16 +30,6 @@ public class SQLiteColumn extends IColumn {
         this(columnType, 0, 0, columnName, null);
     }
 
-    /**
-     * CHAR 类型常用构造器
-     *
-     * @param columnType
-     * @param columnName
-     */
-    public SQLiteColumn(SQLiteColumnType columnType, int m, String columnName) {
-        this(columnType, m, 0, columnName, null);
-    }
-
     /**
      * 主键 类型常用构造器
      * new SQLColumn(SQLiteColumnType.TEXT, "username", SQLiteColumnOption.PRIMARY_KEY, SQLiteColumnOption.AUTO_INCREMENT);
@@ -56,6 +46,10 @@ public class SQLiteColumn extends IColumn {
         this(columnType, 0, 0, columnName, defaultValue);
     }
 
+    public SQLiteColumn(SQLiteColumnType columnType, String columnName, Object defaultValue, SQLiteColumnOption... columnOptions) {
+        this(columnType, 0, 0, columnName, defaultValue, columnOptions);
+    }
+
     /**
      * 完整构造器
      *
diff --git a/src/main/scala/me/skymc/taboolib/sound/SoundPack.java b/src/main/scala/me/skymc/taboolib/sound/SoundPack.java
index aad0c6c..255914c 100644
--- a/src/main/scala/me/skymc/taboolib/sound/SoundPack.java
+++ b/src/main/scala/me/skymc/taboolib/sound/SoundPack.java
@@ -9,8 +9,8 @@ import org.bukkit.entity.Player;
 public class SoundPack {
 
     private Sound sound;
-    private float a;
-    private float b;
+    private Float a;
+    private Float b;
     private int delay;
 
     /**
@@ -70,11 +70,11 @@ public class SoundPack {
         return sound;
     }
 
-    public float getA() {
+    public Float getA() {
         return a;
     }
 
-    public float getB() {
+    public Float getB() {
         return b;
     }