Java Code Examples for cn.nukkit.item.Item#getId()

@Override
public void setItem(int index, Item item) {
    int i = this.getSlotIndex(index);

    CompoundTag d = NBTIO.putItemHelper(item, index);

    if (item.getId() == Item.AIR || item.getCount() <= 0) {
        if (i >= 0) {
            this.namedTag.getList("Items").getAll().remove(i);
        }
    } else if (i < 0) {
        (this.namedTag.getList("Items", CompoundTag.class)).add(d);
    } else {
        (this.namedTag.getList("Items", CompoundTag.class)).add(i, d);
    }
}
 

@Override
public void setItem(int index, Item item) {
    int i = this.getSlotIndex(index);

    CompoundTag d = NBTIO.putItemHelper(item, index);

    if (item.getId() == Item.AIR || item.getCount() <= 0) {
        if (i >= 0) {
            this.namedTag.getList("Items").getAll().remove(i);
        }
    } else if (i < 0) {
        (this.namedTag.getList("Items", CompoundTag.class)).add(d);
    } else {
        (this.namedTag.getList("Items", CompoundTag.class)).add(i, d);
    }
}
 

@Override
public boolean onActivate(Item item, Player player) {
    if (item.getId() == Item.DYE && item.getDamage() == 0x0f) {
        Block block = this.clone();
        if (this.getDamage() / 4 < 2) {
            block.setDamage(block.getDamage() + 4);
            BlockGrowEvent ev = new BlockGrowEvent(this, block);
            Server.getInstance().getPluginManager().callEvent(ev);

            if (ev.isCancelled()) {
                return false;
            }
            this.getLevel().setBlock(this, ev.getNewState(), true, true);
        }

        this.level.addParticle(new BoneMealParticle(this.add(0.5, 0.5, 0.5)));
        item.count--;
        return true;
    }

    return false;
}
 

@Override
public boolean onActivate(Item item, Player player) {
    //Bone meal
    if (item.getId() == Item.DYE && item.getDamage() == 0x0f) {
        if (this.getDamage() < 7) {
            BlockCrops block = (BlockCrops) this.clone();
            block.setDamage(block.getDamage() + ThreadLocalRandom.current().nextInt(3) + 2);
            if (block.getDamage() > 7) {
                block.setDamage(7);
            }
            BlockGrowEvent ev = new BlockGrowEvent(this, block);
            Server.getInstance().getPluginManager().callEvent(ev);

            if (ev.isCancelled()) {
                return false;
            }

            this.getLevel().setBlock(this, ev.getNewState(), false, true);
            this.level.addParticle(new BoneMealParticle(this));

            if (player != null && (player.gamemode & 0x01) == 0) {
                item.count--;
            }
        }

        return true;
    }

    return false;
}
 

@Override
public boolean execute(CommandSender sender, String commandLabel, String[] args) {
    if (!this.testPermission(sender)) {
        return true;
    }
    if (args.length < 2) {
        sender.sendMessage(new TranslationContainer("commands.generic.usage", this.usageMessage));
        return true;
    }
    Player player = sender.getServer().getPlayer(args[0]);
    if (player == null) {
        sender.sendMessage(new TranslationContainer(TextFormat.RED + "%commands.generic.player.notFound"));
        return true;
    }
    int enchantId;
    int enchantLevel;
    try {
        enchantId = getIdByName(args[1]);
        enchantLevel = args.length == 3 ? Integer.parseInt(args[2]) : 1;
    } catch (NumberFormatException e) {
        sender.sendMessage(new TranslationContainer("commands.generic.usage", this.usageMessage));
        return true;
    }
    Enchantment enchantment = Enchantment.getEnchantment(enchantId);
    if (enchantment == null) {
        sender.sendMessage(new TranslationContainer("commands.enchant.notFound", String.valueOf(enchantId)));
        return true;
    }
    enchantment.setLevel(enchantLevel);
    Item item = player.getInventory().getItemInHand();
    if (item.getId() <= 0) {
        sender.sendMessage(new TranslationContainer("commands.enchant.noItem"));
        return true;
    }
    item.addEnchantment(enchantment);
    player.getInventory().setItemInHand(item);
    Command.broadcastCommandMessage(sender, new TranslationContainer("%commands.enchant.success"));
    return true;
}
 

@Override
public boolean onInteract(Player player, Item item, Vector3 clickedPos) {
    if (item.getId() == Item.NAME_TAG) {
        if (item.hasCustomName()) {
            this.setNameTag(item.getCustomName());
            this.setNameTagVisible(true);
            player.getInventory().removeItem(item);
            return true;
        }
    }
    return false;
}
 

@Override
public boolean onInteract(Player player, Item item, Vector3 clickedPos) {
    if (item.getId() == Item.DYE) {
        this.setColor(((ItemDye) item).getDyeColor().getWoolData());
        return true;
    }

    return item.getId() == Item.SHEARS && shear();
}
 

@Override
public boolean onActivate(Item item, Player player) {
    if (item.getId() == Item.FLINT_STEEL) {
        item.useOn(this);
        this.prime();
        return true;
    }
    return false;
}
 

@Override
public void saveNBT() {
    super.saveNBT();

    this.namedTag.putList(new ListTag<CompoundTag>("Items"));
    if (this.inventory != null) {
        for (int slot = 0; slot < 5; ++slot) {
            Item item = this.inventory.getItem(slot);
            if (item != null && item.getId() != Item.AIR) {
                this.namedTag.getList("Items", CompoundTag.class)
                        .add(NBTIO.putItemHelper(item, slot));
            }
        }
    }
}
 

@Override
public boolean setItem(int index, Item item, boolean send) {
    item = item.clone();
    if (index < 0 || index >= this.size) {
        return false;
    } else if (item.getId() == 0 || item.getCount() <= 0) {
        return this.clear(index);
    }

    InventoryHolder holder = this.getHolder();
    if (holder instanceof Entity) {
        EntityInventoryChangeEvent ev = new EntityInventoryChangeEvent((Entity) holder, this.getItem(index), item, index);
        Server.getInstance().getPluginManager().callEvent(ev);
        if (ev.isCancelled()) {
            this.sendSlot(index, this.getViewers());
            return false;
        }

        item = ev.getNewItem();
    }

    Item old = this.getItem(index);
    this.slots.put(index, item.clone());
    this.onSlotChange(index, old, send);

    return true;
}
 

@Override
public boolean isEmpty() {
    if (this.getMaxStackSize() <= 0) {
        return false;
    }

    for (Item item : this.slots.values()) {
        if (item != null && item.getId() != 0 && item.getCount() > 0) {
            return false;
        }
    }

    return true;
}
 

@Override
public boolean isEmpty() {
    if (this.getMaxStackSize() <= 0) {
        return false;
    }

    for (Item item : this.slots.values()) {
        if (item != null && item.getId() != 0 && item.getCount() > 0) {
            return false;
        }
    }

    return true;
}
 

@Override
public void setData(Item data) {
    this.blockId = data.getId();
    this.meta = (data.hasMeta() ? data.getDamage() : 0);
    this.count = data.getCount();
}
 

public ItemBreakParticle(Vector3 pos, Item item) {
    super(pos, Particle.TYPE_ITEM_BREAK, (item.getId() << 16) | item.getDamage());
}
 

public boolean onRename(Player player, Item resultItem) {
    Item local = getItem(TARGET);
    Item second = getItem(SACRIFICE);

    if (!resultItem.equals(local, true, false) || resultItem.getCount() != local.getCount()) {
        //Item does not match target item. Everything must match except the tags.
        return false;
    }

    if (local.equals(resultItem)) {
        //just item transaction
        return true;
    }

    if (local.getId() != 0 && second.getId() == 0) { //only rename
        local.setCustomName(resultItem.getCustomName());
        setItem(RESULT, local);
        player.getInventory().addItem(local);
        clearAll();
        player.getInventory().sendContents(player);
        sendContents(player);

        player.getLevel().addSound(player, Sound.RANDOM_ANVIL_USE);
        return true;
    } else if (local.getId() != 0 && second.getId() != 0) { //enchants combining
        if (!local.equals(second, true, false)) {
            return false;
        }

        if (local.getId() != 0 && second.getId() != 0) {
            Item result = local.clone();
            int enchants = 0;

            ArrayList<Enchantment> enchantments = new ArrayList<>(Arrays.asList(second.getEnchantments()));

            ArrayList<Enchantment> baseEnchants = new ArrayList<>();

            for (Enchantment ench : local.getEnchantments()) {
                if (ench.isMajor()) {
                    baseEnchants.add(ench);
                }
            }

            for (Enchantment enchantment : enchantments) {
                if (enchantment.getLevel() < 0 || enchantment.getId() < 0) {
                    continue;
                }

                if (enchantment.isMajor()) {
                    boolean same = false;
                    boolean another = false;

                    for (Enchantment baseEnchant : baseEnchants) {
                        if (baseEnchant.getId() == enchantment.getId())
                            same = true;
                        else {
                            another = true;
                        }
                    }

                    if (!same && another) {
                        continue;
                    }
                }

                Enchantment localEnchantment = local.getEnchantment(enchantment.getId());

                if (localEnchantment != null) {
                    int level = Math.max(localEnchantment.getLevel(), enchantment.getLevel());

                    if (localEnchantment.getLevel() == enchantment.getLevel())
                        level++;

                    enchantment.setLevel(level);
                    result.addEnchantment(enchantment);
                    continue;
                }

                result.addEnchantment(enchantment);
                enchants++;
            }

            result.setCustomName(resultItem.getCustomName());

            player.getInventory().addItem(result);
            player.getInventory().sendContents(player);
            clearAll();
            sendContents(player);

            player.getLevel().addSound(player, Sound.RANDOM_ANVIL_USE);
            return true;
        }
    }

    return false;
}
 

@Override
public boolean isBreedingItem(Item item) {
    return item.getId() == Item.RAW_FISH;
}
 

public boolean onActivate(Item item, Player player) {
    if (item.getId() == Item.DYE && item.getDamage() == 0x0F) { //BoneMeal
        if ((player.gamemode & 0x01) == 0) {
            item.count--;
        }

        this.level.addParticle(new BoneMealParticle(this));
        if (this.level.rand.nextFloat() >= 0.45) {
            return true;
        }

        BasicGenerator generator = null;
        boolean bigTree = false;

        int x = 0;
        int z = 0;

        switch (this.meta) {
            case JUNGLE:
                loop:
                for (x = 0; x >= -1; --x) {
                    for (z = 0; z >= -1; --z) {
                        if (this.findSaplings(x, z, JUNGLE)) {
                            generator = new ObjectJungleBigTree(10, 20, new BlockWood(BlockWood.JUNGLE), new BlockLeaves(BlockLeaves.JUNGLE));
                            bigTree = true;
                            break loop;
                        }
                    }
                }

                if (!bigTree) {
                    generator = new NewJungleTree(4 + this.level.rand.nextInt(7));
                }
                break;
            case ACACIA:
                generator = new ObjectSavannaTree();
                break;
            case DARK_OAK:
                bigTree = false;

                loop:
                for (x = 0; x >= -1; --x) {
                    for (z = 0; z >= -1; --z) {
                        if (this.findSaplings(x, z, DARK_OAK)) {
                            generator = new ObjectDarkOakTree();
                            bigTree = true;
                            break loop;
                        }
                    }
                }

                if (!bigTree) {
                    return false;
                }
                break;
            //TODO: big spruce
            default:
                ObjectTree.growTree(this.getLevel(), (int) this.x, (int) this.y, (int) this.z, new NukkitRandom(), this.meta & 0x07);
                return true;
        }
        BlockAir air = new BlockAir();

        if (bigTree) {
            this.level.setBlock(this.add(x, 0, z), air, true, false);
            this.level.setBlock(this.add(x + 1, 0, z), air, true, false);
            this.level.setBlock(this.add(x, 0, z + 1), air, true, false);
            this.level.setBlock(this.add(x + 1, 0, z + 1), air, true, false);
        } else {
            this.level.setBlock(this, air, true, false);
        }

        if (!generator.generate(this.level, new NukkitRandom(), this.add(x, 0, z))) {
            if (bigTree) {
                this.level.setBlock(this.add(x, 0, z), this, true, false);
                this.level.setBlock(this.add(x + 1, 0, z), this, true, false);
                this.level.setBlock(this.add(x, 0, z + 1), this, true, false);
                this.level.setBlock(this.add(x + 1, 0, z + 1), this, true, false);
            } else {
                this.level.setBlock(this, this, true, false);
            }
        }
        return true;
    }
    this.getLevel().loadChunk((int) this.x >> 4, (int) this.z >> 4);
    return false;
}
 

@Override
public boolean isBreedingItem(Item item) {
    int id = item.getId();

    return id == Item.WHEAT_SEEDS || id == Item.MELON_SEEDS || id == Item.PUMPKIN_SEEDS || id == Item.BEETROOT_SEEDS;
}
 

@Override
public void setData(Item data) {
    this.blockId = data.getId();
    this.meta = (data.hasMeta() ? data.getDamage() : 0);
    this.count = data.getCount();
}
 

public boolean isBreedingItem(Item item) {
    return item.getId() == Item.WHEAT; //default
}