Refactored out duplicate db interface.

src/engine/powers/PowerPrereq.java

@@ -9,9 +9,11 @@
 
 package engine.powers;
 
-import engine.objects.PreparedStatementShared;
+import engine.gameManager.DbManager;
 import org.pmw.tinylog.Logger;
 
+import java.sql.Connection;
+import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.HashMap;
@@ -60,14 +62,17 @@ public class PowerPrereq {
     }
 
     public static void getAllPowerPrereqs(HashMap<String, PowersBase> powers) {
-        PreparedStatementShared ps = null;
-        try {
-            ps = new PreparedStatementShared("SELECT * FROM static_power_powercastprereq");
-            ResultSet rs = ps.executeQuery();
+
+        try (Connection connection = DbManager.getConnection();
+             PreparedStatement preparedStatement = connection.prepareStatement("SELECT * FROM static_power_powercastprereq\"")) {
+
+            ResultSet rs = preparedStatement.executeQuery();
+
             int type;
             String IDString;
             PowerPrereq toAdd;
             PowersBase pb;
+
             while (rs.next()) {
                 IDString = rs.getString("IDString");
                 pb = powers.get(IDString);
@@ -85,8 +90,6 @@ public class PowerPrereq {
             rs.close();
         } catch (Exception e) {
             Logger.error(e.toString());
-        } finally {
-            ps.release();
         }
     }