Show Scoreboard below name and top screen

TheVoidRoad/src/main/java/ovh/herisson/thevoidroad/DatabaseManager.java

@@ -41,7 +41,7 @@ public class DatabaseManager {
 	private void InitVoids() throws SQLException{
 		String query = "CREATE TABLE IF NOT EXISTS voids (\n"
 			+ "id integer PRIMARY KEY,\n"
-			+ "uuid text NOT NULL,\n"
+			+ "uuid text NOT NULL UNIQUE,\n"
 			+ "amount INTEGER DEFAULT 0)";
 
 		Statement st = con.createStatement();
@@ -49,7 +49,8 @@ public class DatabaseManager {
 		st.close();
 	}
 
-	public int getVoids(UUID uuid) throws SQLException{
+	public int getVoids(UUID uuid){
+		try {
 			Statement st = con.createStatement();
 			String query = "SELECT amount FROM voids WHERE uuid = ? LIMIT 1";
 			PreparedStatement p = con.prepareStatement(query);
@@ -58,9 +59,14 @@ public class DatabaseManager {
 			int value = rs.getInt(1);
 			st.close();
 			return value;
+		} catch(Exception e){
+			e.printStackTrace();
+		}
+		return 0;
 	}
 
-	public void setVoids(UUID uuid, int amount) throws SQLException{
+	public void setVoids(UUID uuid, int amount) {
+		try {
 			Statement st = con.createStatement();
 			String query = "INSERT OR REPLACE INTO voids (uuid, amount) VALUES (?, ?)";
 			PreparedStatement p = con.prepareStatement(query);
@@ -68,6 +74,9 @@ public class DatabaseManager {
 			p.setInt(2, amount);
 			p.execute();
 			st.close();
+		} catch(Exception e){
+			e.printStackTrace();
+		}
 	}
 
     public HashMap<UUID, Integer> getVoidsScoreboard() throws SQLException{

TheVoidRoad/src/main/java/ovh/herisson/thevoidroad/Entity/Merchand.java

@@ -15,6 +15,9 @@ import org.bukkit.entity.Player;
 import org.bukkit.entity.Villager;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
+import org.bukkit.event.inventory.InventoryAction;
+import org.bukkit.event.inventory.InventoryClickEvent;
+import org.bukkit.event.inventory.InventoryInteractEvent;
 import org.bukkit.event.player.PlayerInteractEntityEvent;
 import org.bukkit.event.player.PlayerInteractEvent;
 import org.bukkit.event.world.EntitiesLoadEvent;
@@ -25,6 +28,7 @@ import org.bukkit.persistence.PersistentDataType;
 import net.kyori.adventure.text.Component;
 import ovh.herisson.thevoidroad.DatabaseManager;
 import ovh.herisson.thevoidroad.TheVoidRoad;
+import ovh.herisson.thevoidroad.Voids;
 import ovh.herisson.thevoidroad.Event.HourEvent;
 import ovh.herisson.thevoidroad.util.Tuple;
 
@@ -54,7 +58,8 @@ public class Merchand implements Listener{
 		} catch(Exception e){
 			e.printStackTrace();
 		}
-		if(DatabaseManager.getInstance().getConfig("init").equalsIgnoreCase("true")){
+		if(DatabaseManager.getInstance().getConfig("init") != null &&
+				DatabaseManager.getInstance().getConfig("init").equalsIgnoreCase("true")){
 			regenerate();
 		}
 	}
@@ -121,4 +126,26 @@ public class Merchand implements Listener{
 			e.getPlayer().setCompassTarget(m.getLocation());
 		}
 	}
+
+	//Inventory interaction
+	@EventHandler
+	public void ClickInsideInventory(InventoryClickEvent e){
+		// Did the click the right slot in the right inventory
+		if(!e.getInventory().equals(inv)) return;
+		e.setCancelled(true);
+		if(!e.getInventory().equals(inv) || e.getSlot() != 4) return;
+
+		if(e.getWhoClicked() instanceof Player ply){
+			//Do we have the item and if so remove them
+			if(ply.getInventory().contains(current.x)){
+				for (ItemStack i : ply.getInventory().getContents()) {
+					if(i.getType() == current.x){
+						i.subtract(1);
+						Voids.add(ply, current.y);
+						return;
+					}
+				}
+			}
+		}
+	}
 }

TheVoidRoad/src/main/java/ovh/herisson/thevoidroad/TheVoidRoad.java

@@ -29,7 +29,7 @@ public class TheVoidRoad extends JavaPlugin{
 		//Events
 		getServer().getPluginManager().registerEvents(new HourEvent(), this); //For HourEvent
 		getServer().getPluginManager().registerEvents(Merchand.getInstance(), this);
-
+		getServer().getPluginManager().registerEvents(new Voids(), this);
 	}
 
 	@Override

TheVoidRoad/src/main/java/ovh/herisson/thevoidroad/Voids.java

@@ -6,46 +6,44 @@ import java.util.UUID;
 
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.scoreboard.Criteria;
+import org.bukkit.scoreboard.DisplaySlot;
+import org.bukkit.scoreboard.Objective;
+import org.bukkit.scoreboard.RenderType;
+import org.bukkit.scoreboard.Score;
+import org.bukkit.scoreboard.Scoreboard;
+import org.bukkit.scoreboard.ScoreboardManager;
 
-public final class Voids{	
+import net.kyori.adventure.bossbar.BossBar;
+import net.kyori.adventure.text.Component;
 
-	private Voids(){} // Prohib the instantiation 
+public final class Voids implements Listener{
+
+	private static HashMap<Player, BossBar> bossbars = new HashMap<>();
 
 	public static int get(Player ply){
-		try {
 		return TheVoidRoad.db.getVoids(ply.getUniqueId());
-		} catch(SQLException e){
-			e.printStackTrace();
-		}
-		return 0;
 	}
 
 	public static void set(Player ply, int amount){
-		try {
 		TheVoidRoad.db.setVoids(ply.getUniqueId(), amount);
-
+		UpdateVoids(ply);
-		} catch(SQLException e){
-			e.printStackTrace();
-		}
 	}
 
 	public static void add(Player ply, int amount){
-		try {
+		int curr = DatabaseManager.getInstance().getVoids(ply.getUniqueId());
-			int curr = TheVoidRoad.db.getVoids(ply.getUniqueId());
+		DatabaseManager.getInstance().setVoids(ply.getUniqueId(), curr + amount);
-			TheVoidRoad.db.setVoids(ply.getUniqueId(), curr + amount);
+		UpdateVoids(ply);
-		} catch(SQLException e){
-			e.printStackTrace();
-		}
 	} 
 	
 	public static boolean subtract(Player ply, int amount, boolean force){
-		try {
 		int curr = TheVoidRoad.db.getVoids(ply.getUniqueId());
 		if(curr - amount < 0 && !force) return false;
 		TheVoidRoad.db.setVoids(ply.getUniqueId(), curr - amount);
-		} catch(SQLException e){
+		UpdateVoids(ply);
-			e.printStackTrace();
-		}
 		return true;
 	} 
 
@@ -69,4 +67,28 @@ public final class Voids{
 		}
 		return ret;
 	}
+
+	public static void UpdateVoids(Player ply){
+		Integer count = get(ply);
+		String countString = count.toString() + TheVoidRoad.CoinGlyph;
+
+		Scoreboard sb = Bukkit.getScoreboardManager().getMainScoreboard();
+		Objective o = sb.getObjective("VOIDS") != null ? sb.getObjective("VOIDS") : sb.registerNewObjective("VOIDS", Criteria.DUMMY, "voids");
+		o.setDisplaySlot(DisplaySlot.BELOW_NAME);
+		o.displayName(Component.text(TheVoidRoad.CoinGlyph));
+		Score s = o.getScore(ply);
+		s.setScore(count);
+
+		BossBar bb = bossbars.containsKey(ply) ?
+		   	bossbars.get(ply).name(Component.text(countString)) :
+		   	BossBar.bossBar(Component.text(countString), 1, BossBar.Color.GREEN, BossBar.Overlay.PROGRESS);
+
+		bossbars.put(ply, bb);
+		ply.showBossBar(bb);
+	}
+
+	@EventHandler
+	public void UpdateVoids(PlayerJoinEvent e){
+		UpdateVoids(e.getPlayer());
+	}
 }