По просьбе Димона + mini-update 0.1.2

src/main/java/ru/prisonlife/api/template/Level.java

@@ -0,0 +1,49 @@
+package ru.prisonlife.api.template;
+
+import ru.prisonlife.api.PrisonAPI;
+
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+public class Level {
+
+    private Prisoner me;
+    private Score score;
+
+    Level(Prisoner prisoner) {
+        me = prisoner;
+        score = new Score(me);
+    }
+
+    public Score getScore() throws SQLException {
+        return score;
+    }
+
+    public double getLevel() throws SQLException, NullPointerException {
+        try (PreparedStatement statement = PrisonAPI.CONN.prepareStatement("SELECT LEVEL FROM player_stats WHERE UUID = ?")) {
+            statement.setString(1, me.getPlayer().getUniqueId().toString());
+
+            try (ResultSet resultSet = statement.executeQuery()) {
+                if (resultSet.next()) {
+                    return resultSet.getDouble(1);
+                } else {
+                    return 1d; //TODO нужно или default значение, или exception
+                }
+            }
+        }
+    }
+
+    public void addLevel(double value) throws SQLException, NullPointerException {
+        setLevel(getLevel() + value);
+    }
+
+    public void setLevel(double value) throws SQLException, NullPointerException {
+        try (PreparedStatement statement = PrisonAPI.CONN.prepareStatement("UPDATE player_stats SET LEVEL = ? WHERE UUID = ?")) {
+            statement.setDouble(1, getLevel() + value);
+            statement.setString(2, me.getPlayer().getUniqueId().toString());
+
+            statement.executeUpdate();
+        }
+    }
+}