BuyGui.java

package com.teliax.tutorial.commands;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.DyeColor;
import org.bukkit.Material;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Item;
import org.bukkit.entity.Player;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;

import java.util.ArrayList;

public class BuyGUI implements CommandExecutor {

    @Override
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {


        if (sender instanceof Player){
            Player player = (Player) sender;

            Inventory gui;
            gui = Bukkit.createInventory(player, 45, "§8[§5§lBUYCRAFT§8]");
            ItemStack hvidglas = new Item(Material.STAINED_GLASS_PANE, 1, DyeColor.WHITE.getData());
            ItemStack glas = new ItemStack(Material.STAINED_GLASS_PANE, 1, DyeColor.PURPLE.getData());
            ItemStack air = new ItemStack(Material.AIR);
            ItemStack rankbog = new ItemStack(Material.BOOK);
            ItemStack andetbog = new ItemStack(Material.BOOK);

            ItemMeta glas_meta = glas.getItemMeta();
            glas_meta.setDisplayName(ChatColor.RED + " ");
            ArrayList<String> glas_lore = new ArrayList<>();
            glas_lore.add(ChatColor.GOLD + " ");
            glas_meta.setLore(glas_lore);
            glas.setItemMeta(glas_meta);

            ItemMeta hvidglas_meta = hvidglas.getItemMeta();
            hvidglas_meta.setDisplayName(ChatColor.RED + " ");
            ArrayList<String> hvidglas_lore = new ArrayList<>();
            hvidglas_lore.add(ChatColor.GOLD + " ");
            hvidglas_meta.setLore(hvidglas_lore);
            hvidglas.setItemMeta(hvidglas_meta);

            ItemMeta bog_meta = rankbog.getItemMeta();
            bog_meta.setDisplayName("§5§lRANKS");
            ArrayList<String> bog_lore = new ArrayList<>();
            bog_lore.add("§fTryk her, for at tilgå §dranks§f.");
            bog_lore.add("");
            bog_lore.add("§fIndeholder:");
            bog_lore.add("  §8§m-§5§l OMEGA §f§lRANK");
            bog_lore.add("  §8§m-§e§l GAMMA §f§lRANK");
            bog_lore.add("  §8§m-§a§l ALPHA §f§lRANK");
            bog_lore.add("  §8§m-§b§l BETA §f§lRANK");
            bog_meta.setLore(bog_lore);
            rankbog.setItemMeta(bog_meta);

            ItemMeta andetbog_meta = andetbog.getItemMeta();
            andetbog_meta.setDisplayName("§9§lANDET");
            ArrayList<String> andetbog_lore = new ArrayList<>();
            andetbog_lore.add("§fTryk her, for at tilgå §3andet§f.");
            andetbog_lore.add("");
            andetbog_lore.add("§fIndeholder:");
            andetbog_lore.add("  §8§m-§b§l FLY §f§lKOMMANDO");
            andetbog_lore.add("  §8§m-§a§l PV §f§l10");
            andetbog_lore.add("  §8§m-§e§l RESET §f§lMINER");
            andetbog_meta.setLore(andetbog_lore);
            andetbog.setItemMeta(andetbog_meta);


            ItemStack[] menu_items = {glas, glas, glas, glas, glas, glas, glas, glas, glas, air, air, air, air, air, air, air, air, air, air, air, air, rankbog, air, andetbog, air, air, air, air, air, air, air, air, air, air, air, air, hvidglas, hvidglas, hvidglas, hvidglas, hvidglas, hvidglas, hvidglas, hvidglas, hvidglas};
            gui.setContents(menu_items);
            player.openInventory(gui);
        }
        return true;
    }
}