package me.totalfreedom.totalfreedommod.command; import java.util.ArrayList; import java.util.List; import me.totalfreedom.totalfreedommod.rank.Rank; import me.totalfreedom.totalfreedommod.util.FUtil; import net.minecraft.server.v1_16_R1.NBTTagCompound; import net.minecraft.server.v1_16_R1.NBTTagInt; import net.minecraft.server.v1_16_R1.NBTTagList; import net.minecraft.server.v1_16_R1.NBTTagString; import org.apache.commons.lang.StringUtils; import org.bukkit.Material; import org.bukkit.command.Command; import org.bukkit.command.CommandSender; import org.bukkit.craftbukkit.v1_16_R1.inventory.CraftItemStack; import org.bukkit.enchantments.Enchantment; import org.bukkit.entity.Player; import org.bukkit.inventory.ItemStack; import org.bukkit.inventory.meta.ItemMeta; import org.bukkit.inventory.meta.PotionMeta; import org.bukkit.potion.PotionEffectType; @CommandPermissions(level = Rank.OP, source = SourceType.ONLY_IN_GAME) @CommandParameters(description = "Modify the current item you are holding.", usage = "/ | lore | enchant | potion | attribute | clear>", aliases = "mi") public class Command_modifyitem extends FreedomCommand { @Override public boolean run(final CommandSender sender, final Player playerSender, Command cmd, String commandLabel, String[] args, boolean senderIsConsole) { if (args.length < 1) { return false; } ItemStack item = playerSender.getInventory().getItemInMainHand(); if (item.getType().equals(Material.AIR)) { msg("You must have an item in your hand!"); return true; } if (args[0].equalsIgnoreCase("clear")) { item.setItemMeta(null); playerSender.getInventory().setItemInMainHand(item); return true; } if (args.length < 2) { return false; } ItemMeta meta = item.getItemMeta(); switch (args[0]) { case "name": String name = FUtil.colorize(StringUtils.join(args, " ", 1, args.length)); meta.setDisplayName(name); item.setItemMeta(meta); break; case "lore": List lore = new ArrayList<>(); for (String line : StringUtils.join(args, " ", 1, args.length).split("\\\\n")) { lore.add(FUtil.colorize(line)); } meta.setLore(lore); item.setItemMeta(meta); break; case "enchant": if (args.length < 3) { return false; } Enchantment enchantment = Enchantment.getByName(args[1].toUpperCase()); if (enchantment == null) { msg("Invalid enchantment. Please run /enchantments for a list of valid enchantments."); return true; } int level; try { level = Integer.parseInt(args[2]); } catch (NumberFormatException ex) { msg("The level specified is not a valid integer."); return true; } meta.addEnchant(enchantment, level, true); item.setItemMeta(meta); break; case "potion": { if (!item.getType().equals(Material.POTION) & !item.getType().equals(Material.SPLASH_POTION) & !item.getType().equals(Material.LINGERING_POTION) & !item.getType().equals(Material.TIPPED_ARROW)) { msg("This item can not have potion effects added to it."); return true; } if (args.length < 4) { return false; } PotionEffectType type = PotionEffectType.getByName(args[1]); if (type == null) { msg("Invalid potion effect. Please run /potion list for a list of valid potion effects."); return true; } int duration; try { duration = Math.max(1, Math.min(1000000, Integer.parseInt(args[2]))); } catch (NumberFormatException ex) { msg("The duration specified is not a valid integer."); return true; } int amplifier; try { amplifier = Math.max(1, Math.min(256, Integer.parseInt(args[2]))); } catch (NumberFormatException ex) { msg("The amplifier specified is not a valid integer."); return true; } PotionMeta potionMeta = (PotionMeta)meta; potionMeta.addCustomEffect(type.createEffect(duration, amplifier), true); item.setItemMeta(potionMeta); break; } case "attribute": if (args.length < 3) { return false; } net.minecraft.server.v1_16_R1.ItemStack nmsStack = CraftItemStack.asNMSCopy(item); NBTTagCompound compound = (nmsStack.hasTag()) ? nmsStack.getTag() : new NBTTagCompound(); NBTTagList modifiers = getAttributeList(nmsStack); NBTTagCompound cmpnd = new NBTTagCompound(); Attribute attribute = Attribute.getByName(args[1].toUpperCase()); if (attribute == null) { msg("Invalid attribute. Please run /attributelist for a list of valid attributes."); return true; } cmpnd.set("AttributeName", NBTTagString.a(attribute.getAttribute())); cmpnd.set("Name", NBTTagString.a(attribute.getAttribute())); int amount; try { amount = Integer.parseInt(args[2]); } catch (NumberFormatException ex) { msg("The amount specified is not a valid integer."); return true; } cmpnd.set("Amount", NBTTagInt.a(amount)); cmpnd.set("Operation", NBTTagInt.a(0)); cmpnd.set("UUIDLeast", NBTTagInt.a(894654)); cmpnd.set("UUIDMost", NBTTagInt.a(2872)); cmpnd.set("Slot", NBTTagString.a("mainhand")); modifiers.add(cmpnd); compound.set("AttributeModifiers", modifiers); nmsStack.setTag(compound); item = CraftItemStack.asBukkitCopy(nmsStack); break; default: return false; } playerSender.getInventory().setItemInMainHand(item); return true; } private NBTTagList getAttributeList(net.minecraft.server.v1_16_R1.ItemStack stack) { if (stack.getTag() == null) { stack.setTag(new NBTTagCompound()); } NBTTagList attr = stack.getTag().getList("AttributeModifiers", 10); if (attr == null) { stack.getTag().set("AttributeModifiers", new NBTTagList()); } return stack.getTag().getList("AttributeModifiers", 10); } private enum Attribute { GENERIC_MAX_HEALTH("GENERIC_MAX_HEALTH", "generic.max_health"), GENERIC_FOLLOW_RANGE("GENERIC_FOLLOW_RANGE", "generic.follow_range"), GENERIC_KNOCKBACK_RESISTANCE("GENERIC_KNOCKBACK_RESISTANCE", "generic.knockback_resistance"), GENERIC_MOVEMENT_SPEED("GENERIC_MOVEMENT_SPEED", "generic.movement_speed"), GENERIC_FLYING_SPEED("GENERIC_FLYING_SPEED", "generic.flying_speed"), GENERIC_ATTACK_DAMAGE("GENERIC_ATTACK_DAMAGE", "generic.attack_damage"), GENERIC_ATTACK_SPEED("GENERIC_ATTACK_SPEED", "generic.attack_speed"), GENERIC_ARMOR("GENERIC_ARMOR", "generic.armor"), GENERIC_ARMOR_TOUGHNESS("GENERIC_ARMOR_TOUGHNESS", "generic.armor_toughmess"), GENERIC_LUCK("GENERIC_LUCK", "generic.luck"), HORSE_JUMP_STRENGTH("GENERIC_MAX_HEALTH", "horse.jump_strength"), ZOMBIE_SPAWN_REINFORCEMENTS("ZOMBIE_SPAWN_REINFORCEMENTS", "zombie.spawn_reinforcements"); private final String name; private final String attribute; Attribute(String name, String attribute) { this.name = name; this.attribute = attribute; } public String getAttribute() { return attribute; } @Override public String toString() { return name; } public static Attribute getByName(String name) { for (Attribute attr : Attribute.values()) { if (attr.toString().toUpperCase().equals(name)) { return attr; } } return null; } } }