Charge money/give money when buying/selling

src/main/java/com/alttd/VillagerUI.java

@@ -8,16 +8,23 @@ import com.alttd.config.VillagerConfig;
 import com.alttd.config.WorthConfig;
 import com.alttd.events.VillagerInteract;
 import com.alttd.util.Logger;
+import net.milkbowl.vault.economy.Economy;
+import org.bukkit.plugin.RegisteredServiceProvider;
 import org.bukkit.plugin.java.JavaPlugin;
 
 public class VillagerUI extends JavaPlugin {
 
     public static VillagerUI instance;
+    private static Economy econ = null;
 
     public static VillagerUI getInstance() {
         return instance;
     }
 
+    public static Economy getEcon() {
+        return econ;
+    }
+
     @Override
     public void onLoad() {
         instance = this;
@@ -30,6 +37,11 @@ public class VillagerUI extends JavaPlugin {
         Config.reload();
         VillagerConfig.reload();
         WorthConfig.reload();
+        if (!setupEconomy()) {
+            Logger.severe("% - Unable to find vault", getDescription().getName());
+            getServer().getPluginManager().disablePlugin(this);
+            return;
+        }
         Database.init();
         Logger.info("--------------------------------------------------");
         Logger.info("Villager UI started");
@@ -41,4 +53,13 @@ public class VillagerUI extends JavaPlugin {
         getServer().getPluginManager().registerEvents(new VillagerInteract(), this);
     }
 
+    private boolean setupEconomy() {
+        if (getServer().getPluginManager().getPlugin("Vault") == null) return false;
+        RegisteredServiceProvider<Economy> rsp = getServer().getServicesManager().getRegistration(Economy.class);
+        if (rsp == null) return false;
+        econ = rsp.getProvider();
+
+        return econ != null;
+    }
+
 }