Implement basic economy using Vault.

Prices for heads can be set for each category in the config file.

pom.xml

@@ -68,6 +68,13 @@
             <artifactId>anvilgui</artifactId>
             <version>1.5.0-SNAPSHOT</version>
         </dependency>
+        <!-- Vault -->
+        <dependency>
+            <groupId>com.github.MilkBowl</groupId>
+            <artifactId>VaultAPI</artifactId>
+            <version>1.7</version>
+            <scope>provided</scope>
+        </dependency>
     </dependencies>
 
     <build>

src/main/java/tsp/headdb/HeadDB.java

@@ -13,12 +13,15 @@ import tsp.headdb.listener.MenuListener;
 import tsp.headdb.util.Log;
 import tsp.headdb.util.Metrics;
 import tsp.headdb.util.Utils;
+import org.bukkit.plugin.RegisteredServiceProvider;
+import net.milkbowl.vault.economy.Economy;
 
 public class HeadDB extends JavaPlugin {
 
     private static HeadDB instance;
     private Config config;
     private Json playerdata;
+    private Economy economy = null;
 
     @Override
     public void onEnable() {
@@ -28,6 +31,17 @@ public class HeadDB extends JavaPlugin {
         config = LightningBuilder.fromPath("config.yml", "plugins/HeadDB").createConfig().addDefaultsFromInputStream();
         playerdata = LightningBuilder.fromPath("playerdata.json", "plugins/HeadDB").createJson();
 
+        if (config.getBoolean("economy.enable"))
+        {
+            Log.debug("Starting economy...");
+            this.economy = this.setupEconomy();
+            if (this.economy == null) {
+                Log.error("Economy support requires Vault and an economy provider plugin.");
+            } else {
+                Log.info("Economy provider: " + this.economy.getName());
+            }
+        }
+
         Log.debug("Starting metrics...");
         new Metrics(this, Utils.METRICS_ID);
 
@@ -52,6 +66,15 @@ public class HeadDB extends JavaPlugin {
         Log.info("Done!");
     }
 
+    private Economy setupEconomy() {
+        if (!this.getServer().getPluginManager().isPluginEnabled("Vault")) return null;
+
+        RegisteredServiceProvider<Economy> economyProvider = this.getServer().getServicesManager().getRegistration(Economy.class);
+        if (economyProvider == null) return null;
+
+        return this.economy = economyProvider.getProvider();
+    }
+
     public Config getCfg() {
         return config;
     }
@@ -64,4 +87,7 @@ public class HeadDB extends JavaPlugin {
         return instance;
     }
 
+    public Economy getEconomy() {
+        return this.economy;
+    }
 }

src/main/java/tsp/headdb/inventory/InventoryUtils.java

@@ -7,12 +7,14 @@ import org.bukkit.event.inventory.ClickType;
 import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
+import tsp.headdb.HeadDB;
 import tsp.headdb.api.Head;
 import tsp.headdb.api.HeadAPI;
 import tsp.headdb.api.LocalHead;
 import tsp.headdb.database.Category;
 import tsp.headdb.util.Utils;
 import tsp.headdb.util.XMaterial;
+import net.milkbowl.vault.economy.Economy;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -27,13 +29,11 @@ public class InventoryUtils {
         for (LocalHead localHead : heads) {
             pane.addButton(new Button(localHead.getItemStack(), e -> {
                 if (e.getClick() == ClickType.SHIFT_LEFT) {
-                    ItemStack item = localHead.getItemStack();
+                    purchaseItem(player, localHead.getItemStack(), 64, "local", localHead.getName());
-                    item.setAmount(64);
-                    player.getInventory().addItem(item);
                     return;
                 }
                 if (e.getClick() == ClickType.LEFT) {
-                    player.getInventory().addItem(localHead.getItemStack());
+                    purchaseItem(player, localHead.getItemStack(), 1, "local", localHead.getName());
                     return;
                 }
                 if (e.getClick() == ClickType.RIGHT) {
@@ -53,13 +53,11 @@ public class InventoryUtils {
         for (Head head : heads) {
             pane.addButton(new Button(head.getItemStack(), e -> {
                 if (e.getClick() == ClickType.SHIFT_LEFT) {
-                    ItemStack item = head.getItemStack();
+                    purchaseItem(player, head.getItemStack(), 64, head.getCategory().getName(), head.getName());
-                    item.setAmount(64);
-                    player.getInventory().addItem(item);
                     return;
                 }
                 if (e.getClick() == ClickType.LEFT) {
-                    player.getInventory().addItem(head.getItemStack());
+                    purchaseItem(player, head.getItemStack(), 1, head.getCategory().getName(), head.getName());
                 }
                 if (e.getClick() == ClickType.RIGHT) {
                     HeadAPI.removeFavoriteHead(player.getUniqueId(), head.getId());
@@ -79,13 +77,11 @@ public class InventoryUtils {
         for (Head head : heads) {
             pane.addButton(new Button(head.getItemStack(), e -> {
                 if (e.getClick() == ClickType.SHIFT_LEFT) {
-                    ItemStack item = head.getItemStack();
+                    purchaseItem(player, head.getItemStack(), 64, head.getCategory().getName(), head.getName());
-                    item.setAmount(64);
-                    player.getInventory().addItem(item);
                     return;
                 }
                 if (e.getClick() == ClickType.LEFT) {
-                    player.getInventory().addItem(head.getItemStack());
+                    purchaseItem(player, head.getItemStack(), 1, head.getCategory().getName(), head.getName());
                 }
                 if (e.getClick() == ClickType.RIGHT) {
                     HeadAPI.addFavoriteHead(player.getUniqueId(), head.getId());
@@ -105,13 +101,11 @@ public class InventoryUtils {
         for (Head head : heads) {
             pane.addButton(new Button(head.getItemStack(), e -> {
                 if (e.getClick() == ClickType.SHIFT_LEFT) {
-                    ItemStack item = head.getItemStack();
+                    purchaseItem(player, head.getItemStack(), 64, head.getCategory().getName(), head.getName());
-                    item.setAmount(64);
-                    player.getInventory().addItem(item);
                     return;
                 }
                 if (e.getClick() == ClickType.LEFT) {
-                    player.getInventory().addItem(head.getItemStack());
+                    purchaseItem(player, head.getItemStack(), 1, head.getCategory().getName(), head.getName());
                 }
                 if (e.getClick() == ClickType.RIGHT) {
                     HeadAPI.addFavoriteHead(player.getUniqueId(), head.getId());
@@ -130,13 +124,11 @@ public class InventoryUtils {
         for (Head head : heads) {
             pane.addButton(new Button(head.getItemStack(), e -> {
                 if (e.getClick() == ClickType.SHIFT_LEFT) {
-                    ItemStack item = head.getItemStack();
+                    purchaseItem(player, head.getItemStack(), 64, head.getCategory().getName(), head.getName());
-                    item.setAmount(64);
-                    player.getInventory().addItem(item);
                     return;
                 }
                 if (e.getClick() == ClickType.LEFT) {
-                    player.getInventory().addItem(head.getItemStack());
+                    purchaseItem(player, head.getItemStack(), 1, head.getCategory().getName(), head.getName());
                 }
                 if (e.getClick() == ClickType.RIGHT) {
                     HeadAPI.addFavoriteHead(player.getUniqueId(), head.getId());
@@ -222,4 +214,26 @@ public class InventoryUtils {
         return item;
     }
 
+    public static void purchaseItem(Player player, ItemStack item, int amount, String costCfg, String description) {
+        Economy economy = HeadDB.getInstance().getEconomy();
+        if (economy != null) {
+            double cost = amount * HeadDB.getInstance().getCfg().getDouble("economy.cost." + costCfg);
+            if (cost > 0) {
+                if (economy.has(player, cost)) {
+                    economy.withdrawPlayer(player, cost);
+                    player.sendMessage(String.format("You purchased %d x %s for %.2f %s!", amount, description, cost, economy.currencyNamePlural()));
+                } else {
+                    player.sendMessage(String.format("You do not have enough %s to purchase %d x %s.", economy.currencyNamePlural(), amount, description));
+                    return;
+                }
+            }
+            else
+            {
+                player.sendMessage(String.format("You purchased %d x %s for free!", amount, description));
+            }
+        }
+
+        item.setAmount(amount);
+        player.getInventory().addItem(item);
+    }
 }

src/main/resources/config.yml

@@ -7,5 +7,21 @@ asyncStartup: false
 # If the cached heads are older than these amount of seconds, the plugin will refresh the database
 refresh: 3600
 
+# Economy options
+economy:
+  enable: false
+  cost:
+    alphabet: 100
+    animals: 100
+    blocks: 100
+    decoration: 100
+    food-drinks: 100
+    humans: 100
+    humanoid: 100
+    miscellaneous: 100
+    monsters: 100
+    plants: 100
+    local: 1000
+
 # Debug Mode
 debug: false

src/main/resources/plugin.yml

@@ -3,6 +3,7 @@ description: ${project.description}
 
 main: tsp.headdb.HeadDB
 version: ${project.version}
+softdepend: [Vault]
 api-version: 1.16
 author: Silent