Spigot插件-KitPvP套件功能

Question

过去的几周我一直在研究插件，使用该工具包时遇到了问题。每个套件都有其自己的“功能”，当您右键单击库存中的某个项目时，它会被激活。例如，当您右键单击粘液球时，“射手座”工具包将变成岩浆膏，并为弓箭附魔，直到射出箭筒耗尽岩浆。我希望获得一些帮助，所以在此先谢谢您。

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.entity.*;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.entity.EntityShootBowEvent;
import org.bukkit.event.player.PlayerEvent;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.potion.PotionEffectType;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

public class Archer extends Kit implements Listener {

    public ArrayList<Player> fireArrows = new ArrayList<Player>();
    public HashMap<Player, Integer> arrowCount = new HashMap<Player, Integer>();

    public Archer() {
        super("Archer", "kitpvp.Archer");
    }

    @Override
    public ItemStack displayItem() {
        ItemStack itemStack = new ItemStack(Material.BOW);
        ItemMeta itemMeta = itemStack.getItemMeta();
        itemMeta.setDisplayName(ChatColor.GOLD + getName() + " Kit");
        itemStack.setItemMeta(itemMeta);
        return itemStack;
    }

    public ItemStack displayItemShop() {
        ItemStack shop = new ItemStack(Material.BOW);
        ItemMeta shopmeta = shop.getItemMeta();
        shopmeta.setDisplayName(ChatColor.GOLD + getName() + " Kit");
        List<String> price = new ArrayList<String>();
        price.add(ChatColor.YELLOW + "0 Coins");
        price.add(ChatColor.YELLOW + "");
        price.add(ChatColor.YELLOW + "Left-Click to Buy");
        price.add(ChatColor.YELLOW + "Right-Click to Preview");
        shopmeta.setLore(price);
        shop.setItemMeta(shopmeta);
        return shop;
    }

    public ItemStack Bow() {
        ItemStack Bow = new ItemStack(Material.BOW);
        ItemMeta BowMeta = Bow.getItemMeta();
        BowMeta.setDisplayName(ChatColor.WHITE + "Archer Bow");
        Bow.setItemMeta(BowMeta);
        return Bow;
    }


    public ItemStack MagmaCream() {
        ItemStack MagmaCream = new ItemStack(Material.MAGMA_CREAM, 1);
        ItemMeta MagmaCreamMeta = MagmaCream.getItemMeta();
        MagmaCreamMeta.setDisplayName(ChatColor.YELLOW + "Right Click for Regular Arrows");
        MagmaCream.setItemMeta(MagmaCreamMeta);
        return MagmaCream;
    }

    public ItemStack SLIME_BALL() {
        ItemStack SLIME_BALL = new ItemStack(Material.SLIME_BALL, 1);
        ItemMeta SLIME_BALLMeta = SLIME_BALL.getItemMeta();
        SLIME_BALLMeta.setDisplayName(ChatColor.YELLOW + "Right Click for Fire Arrows");
        SLIME_BALL.setItemMeta(SLIME_BALLMeta);
        return SLIME_BALL;
    }


    @Override
    public Inventory kitPreview() {
        Inventory inventory = Bukkit.createInventory(null, 18, getName() + " Kit Preview");
        inventory.addItem(new ItemStack(Material.WOOD_SWORD));
        inventory.addItem(new ItemStack(Material.BOW));
        inventory.addItem(new ItemStack(Material.SULPHUR));
        inventory.addItem(new ItemStack(Material.ARROW));
        inventory.addItem(new ItemStack(Material.LEATHER_HELMET));
        inventory.addItem(new ItemStack(Material.LEATHER_CHESTPLATE));
        inventory.addItem(new ItemStack(Material.LEATHER_LEGGINGS));
        inventory.addItem(new ItemStack(Material.LEATHER_BOOTS));

        return inventory;
    }

    @Override
    public void apply(Player player) {
        player.removePotionEffect(PotionEffectType.JUMP);
        player.removePotionEffect(PotionEffectType.SPEED);
        player.removePotionEffect(PotionEffectType.REGENERATION);
        player.removePotionEffect(PotionEffectType.FIRE_RESISTANCE);
        player.removePotionEffect(PotionEffectType.DAMAGE_RESISTANCE);
        ItemStack sword = new ItemStack(Material.WOOD_SWORD);
        sword.addEnchantment(Enchantment.DAMAGE_ALL, 1);
        player.getInventory().setItem(0, sword);

        player.getInventory().setItem(2, SLIME_BALL());
        player.getInventory().setItem(1, Bow());
        player.getInventory().setItem(16, new ItemStack(Material.ARROW, 32));
        player.getInventory().setHelmet(new ItemStack(Material.LEATHER_HELMET));
        player.getInventory().setChestplate(new ItemStack(Material.LEATHER_CHESTPLATE));
        player.getInventory().setLeggings(new ItemStack(Material.LEATHER_LEGGINGS));
        player.getInventory().setBoots(new ItemStack(Material.LEATHER_BOOTS));
        for (int i = 0; i < player.getInventory().getSize(); i++) {
            if (player.getInventory().getItem(i) == null || player.getInventory().getItem(i).getType().equals(Material.AIR)) {
                player.getInventory().setItem(i, new ItemStack(Material.MUSHROOM_SOUP));
            }
        }
    }

    @EventHandler
    public void onInteract(PlayerInteractEvent e) {
        Player player = e.getPlayer();
        Action action = e.getAction();
        if (action == Action.RIGHT_CLICK_AIR || action == Action.RIGHT_CLICK_BLOCK) {
            if (e.getItem().equals(MagmaCream())) {

                if (player.getInventory().contains(MagmaCream())) {
                    player.getInventory().removeItem(MagmaCream());
                    player.updateInventory();
                }
                fireArrows.remove(player);
                //Bow().removeEnchantment(Enchantment.ARROW_FIRE);
                player.updateInventory();
                player.getInventory().setItem(2, SLIME_BALL());

            } else if (e.getItem().equals(SLIME_BALL())) {
                if (player.getInventory().contains(Bow())) {
                    Bow().addEnchantment(Enchantment.ARROW_FIRE, 5);
                }
                player.updateInventory();
                player.getInventory().setItem(2, MagmaCream());
                fireArrows.add(player);
                if (player.getInventory().contains(Material.BOW)) {
                    Bow().getEnchantments();
                    Bow().addEnchantment(Enchantment.ARROW_FIRE, 5);
                    player.sendMessage(ChatColor.translateAlternateColorCodes('&', "&cYou now have a fire bow!"));

                    if (!(arrowCount.containsKey(player))) {
                        arrowCount.put(player, 0);
                    }

                    int firearrowcount = arrowCount.get(player);

                    arrowCount.put(player, firearrowcount + 1);

                    if (firearrowcount == 10) {
                        fireArrows.remove(player);
                        player.sendMessage(ChatColor.translateAlternateColorCodes('&', "&cYour fire arrows have ran out."));
                    }
                }
            }
        }
    }
}