Gui problems

Listener

Code:java

package me.winitro.potup;
 
import java.util.Arrays;
 
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.DyeColor;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.inventory.InventoryClickEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.material.Wool;
import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.potion.Potion;
import org.bukkit.potion.PotionEffect;
import org.bukkit.potion.PotionEffectType;
import org.bukkit.potion.PotionType;
 
 
public class Main extends JavaPlugin implements Listener{
 
 
    private Inventory inv;
    private ItemStack w, f, d, f1;
 
    public Main(Plugin p) {
        inv = Bukkit.getServer().createInventory(null, 27, ChatColor.AQUA + "Pot Selector");
        w = createItem(DyeColor.GREEN, ChatColor.LIGHT_PURPLE + "Pots");
        f = createItem(PotionType.FIRE_RESISTANCE, ChatColor.AQUA + "FireProtect");
        d = createItem(PotionType.STRENGTH, ChatColor.DARK_RED + "MoreDamage");
        f1 = createItem(PotionType.SPEED, ChatColor.BLUE + "SONIC!");
 
        inv.setItem(10, f);
        inv.setItem(12, d);
        inv.setItem(14, f1);
        inv.setItem(1, w);
        inv.setItem(2, w);
        inv.setItem(3, w);
        inv.setItem(4, w);
        inv.setItem(5, w);
        inv.setItem(6, w);
        inv.setItem(7, w);
        inv.setItem(8, w);
        inv.setItem(9, w);
        inv.setItem(11, w);
        inv.setItem(12, w);
        inv.setItem(14, w);
        inv.setItem(16, w);
        inv.setItem(17, w);
        inv.setItem(18, w);
        inv.setItem(19, w);
        inv.setItem(20, w);
        inv.setItem(21, w);
        inv.setItem(22, w);
        inv.setItem(23, w);
        inv.setItem(24, w);
        inv.setItem(24, w);
        inv.setItem(25, w);
        inv.setItem(26, w);
        inv.setItem(27, w);
 
        getServer().getPluginManager().registerEvents(this, p);
    }
    private ItemStack createItem(DyeColor dc, String name) {
        ItemStack i = new Wool(dc).toItemStack(1);
        ItemMeta im = i.getItemMeta();
        im.setDisplayName(name);
        im.setLore(Arrays.asList("Please Pick your potion effect", "of" + name.toLowerCase() + "effects"));
        i.setItemMeta(im);
        return i;
    }
    private ItemStack createItem(PotionType p, String name) {
        ItemStack i = new Potion(p).toItemStack(1);
        ItemMeta im = i.getItemMeta();
        im.setDisplayName(name);
        im.setLore(Arrays.asList("Pick your potion effect", "of" + name.toLowerCase() + "effects"));
        i.setItemMeta(im);
        return i;
    }
 
    public void show(Player p) {
        p.openInventory(inv);
    }
    @EventHandler
    public void onInventoryClick(InventoryClickEvent event){
        if(!event.getInventory().equals(inv)) return;
        if(event.getCurrentItem().getItemMeta().getDisplayName().contains("FireProtect")){
            event.setCancelled(true);
            event.getWhoClicked().addPotionEffect(new PotionEffect(PotionEffectType.FIRE_RESISTANCE, 200, 1));
            event.getWhoClicked().closeInventory();
        }
        if(!event.getInventory().equals(inv)) return;
        if(event.getCurrentItem().getItemMeta().getDisplayName().contains("MoreDamage")){
            event.setCancelled(true);
            event.getWhoClicked().addPotionEffect(new PotionEffect(PotionEffectType.INCREASE_DAMAGE, 200, 1));
            event.getWhoClicked().closeInventory();
    }
        if(!event.getInventory().equals(inv)) return;
        if(event.getCurrentItem().getItemMeta().getDisplayName().contains("SONIC!")){
            event.setCancelled(true);
            event.getWhoClicked().addPotionEffect(new PotionEffect(PotionEffectType.SPEED, 200, 1));
            event.getWhoClicked().closeInventory();
        }
        if(!event.getInventory().equals(inv)) return;
        if(event.getCurrentItem().getItemMeta().getDisplayName().contains("Pots")){
            event.setCancelled(true);
            event.getWhoClicked().closeInventory();
        }
    }
}

Main class

Code:java

package me.winitro.potup;
 
import org.bukkit.Bukkit;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.plugin.java.JavaPlugin;
 
public class MenuInv extends JavaPlugin implements Listener {
 
    private Main inv;
 
    public void onEnable() {
        inv = new Main(this);
        Bukkit.getServer().getPluginManager().registerEvents(this, this);
    }
    @EventHandler
    public void onPlayerInteract(PlayerInteractEvent e){
        if(!(e.getAction() == Action.RIGHT_CLICK_BLOCK)) return;
        inv.show(e.getPlayer());
    }
}

 

Please use the "code" button when posting codes. And say what's your problem.

 

fixed thanks for telling me about that feature

 

Without you even explaining what the problem is I can see that both classes extend JavaPlugin