Java Code Examples for us.myles.ViaVersion.api.minecraft.item.Item#getTag()

public static void toClient(Item item) {
    if (item == null) return;
    item.setIdentifier(getNewItemId(item.getIdentifier()));

    CompoundTag tag;
    if ((tag = item.getTag()) != null) {
        // Display Lore now uses JSON
        Tag displayTag = tag.get("display");
        if (displayTag instanceof CompoundTag) {
            CompoundTag display = (CompoundTag) displayTag;
            Tag loreTag = display.get("Lore");
            if (loreTag instanceof ListTag) {
                ListTag lore = (ListTag) loreTag;
                display.put(ConverterRegistry.convertToTag(NBT_TAG_NAME + "|Lore", ConverterRegistry.convertToValue(lore)));
                for (Tag loreEntry : lore) {
                    if (loreEntry instanceof StringTag) {
                        ((StringTag) loreEntry).setValue(ChatRewriter.legacyTextToJson(((StringTag) loreEntry).getValue()).toString());
                    }
                }
            }
        }
    }
}
 

public static void rewriteBookToServer(Item item) {
    int id = item.getIdentifier();
    if (id != 387) {
        return;
    }
    CompoundTag tag = item.getTag();
    ListTag pages = tag.get("pages");
    if (pages == null) { // is this even possible?
        return;
    }
    for (int i = 0; i < pages.size(); i++) {
        Tag pageTag = pages.get(i);
        if (!(pageTag instanceof StringTag)) {
            continue;
        }
        StringTag stag = (StringTag) pageTag;
        String value = stag.getValue();
        if (value.replaceAll(" ", "").isEmpty()) {
            value = "\"" + fixBookSpaceChars(value) + "\"";
        } else {
            value = fixBookSpaceChars(value);
        }
        stag.setValue(value);
    }
}
 

public static void toClient(Item item) {
    if (item == null) return;

    if (item.getIdentifier() == 771 && item.getTag() != null) {
        CompoundTag tag = item.getTag();
        Tag ownerTag = tag.get("SkullOwner");
        if (ownerTag instanceof CompoundTag) {
            CompoundTag ownerCompundTag = (CompoundTag) ownerTag;
            Tag idTag = ownerCompundTag.get("Id");
            if (idTag instanceof StringTag) {
                UUID id = UUID.fromString((String) idTag.getValue());
                ownerCompundTag.put(new IntArrayTag("Id", UUIDIntArrayType.uuidToIntArray(id)));
            }
        }
    }

    item.setIdentifier(getNewItemId(item.getIdentifier()));
}
 

public static void toServer(Item item) {
    if (item == null) return;

    item.setIdentifier(getOldItemId(item.getIdentifier()));

    if (item.getIdentifier() == 771 && item.getTag() != null) {
        CompoundTag tag = item.getTag();
        Tag ownerTag = tag.get("SkullOwner");
        if (ownerTag instanceof CompoundTag) {
            CompoundTag ownerCompundTag = (CompoundTag) ownerTag;
            Tag idTag = ownerCompundTag.get("Id");
            if (idTag instanceof IntArrayTag) {
                UUID id = UUIDIntArrayType.uuidFromIntArray((int[]) idTag.getValue());
                ownerCompundTag.put(new StringTag("Id", id.toString()));
            }
        }
    }
}
 

@Override
public Item handleItemToServer(Item item) {
    if (item == null) return null;
    super.handleItemToServer(item);

    CompoundTag tag = item.getTag();
    if (tag != null) {
        // Display Lore now uses JSON
        if (tag.get("display") instanceof CompoundTag) {
            CompoundTag display = tag.get("display");
            if (display.get("Lore") instanceof ListTag) {
                ListTag lore = display.get("Lore");
                display.put(ConverterRegistry.convertToTag(nbtTagName + "|Lore", ConverterRegistry.convertToValue(lore)));
                for (Tag loreEntry : lore) {
                    if (loreEntry instanceof StringTag) {
                        ((StringTag) loreEntry).setValue(ChatRewriter.legacyTextToJson(((StringTag) loreEntry).getValue()).toString());
                    }
                }
            }
        }

        enchantmentRewriter.handleToServer(item);
    }
    return item;
}
 

@Override
public Item handleItemToServer(final Item item) {
    if (item == null) return null;
    super.handleItemToServer(item);

    CompoundTag tag = item.getTag();
    if (tag == null) return item;

    // Rewrite spawn eggs (id checks are done in the method itself)
    EntityIdRewriter.toServerItem(item, true);

    if (tag.contains(nbtTagName + "|ench")) {
        enchantmentRewriter.rewriteEnchantmentsToServer(tag, false);
    }
    if (tag.contains(nbtTagName + "|StoredEnchantments")) {
        enchantmentRewriter.rewriteEnchantmentsToServer(tag, true);
    }
    return item;
}
 

@Override
public Item handleItemToClient(Item item) {
    if (item == null) return null;

    super.handleItemToClient(item);

    CompoundTag tag = item.getTag();
    if (item.getIdentifier() == 771 && tag != null) {
        Tag ownerTag = tag.get("SkullOwner");
        if (ownerTag instanceof CompoundTag) {
            CompoundTag ownerCompundTag = (CompoundTag) ownerTag;
            Tag idTag = ownerCompundTag.get("Id");
            if (idTag instanceof IntArrayTag) {
                UUID ownerUuid = UUIDIntArrayType.uuidFromIntArray((int[]) idTag.getValue());
                ownerCompundTag.put(new StringTag("Id", ownerUuid.toString()));
            }
        }
    }

    enchantmentRewriter.handleToClient(item);
    return item;
}
 

@Override
public Item handleItemToServer(Item item) {
    if (item == null) return null;

    int identifier = item.getIdentifier();
    super.handleItemToServer(item);

    CompoundTag tag = item.getTag();
    if (identifier == 771 && tag != null) {
        Tag ownerTag = tag.get("SkullOwner");
        if (ownerTag instanceof CompoundTag) {
            CompoundTag ownerCompundTag = (CompoundTag) ownerTag;
            Tag idTag = ownerCompundTag.get("Id");
            if (idTag instanceof StringTag) {
                UUID ownerUuid = UUID.fromString((String) idTag.getValue());
                ownerCompundTag.put(new IntArrayTag("Id", UUIDIntArrayType.uuidToIntArray(ownerUuid)));
            }
        }
    }

    enchantmentRewriter.handleToServer(item);
    return item;
}
 

@Override
public Item handleItemToClient(final Item item) {
    if (item == null) return null;
    super.handleItemToClient(item);

    CompoundTag tag = item.getTag();
    if (tag == null) return item;

    if (tag.get("ench") instanceof ListTag) {
        enchantmentRewriter.rewriteEnchantmentsToClient(tag, false);
    }
    if (tag.get("StoredEnchantments") instanceof ListTag) {
        enchantmentRewriter.rewriteEnchantmentsToClient(tag, true);
    }
    return item;
}
 

@Override
public Item handleItemToServer(final Item item) {
    if (item == null) return null;
    super.handleItemToServer(item);

    CompoundTag tag = item.getTag();
    if (tag == null) return item;

    if (tag.contains(nbtTagName + "|ench")) {
        enchantmentRewriter.rewriteEnchantmentsToServer(tag, false);
    }
    if (tag.contains(nbtTagName + "|StoredEnchantments")) {
        enchantmentRewriter.rewriteEnchantmentsToServer(tag, true);
    }
    return item;
}
 

@Override
public Item handleItemToClient(Item item) {
    if (item == null) return null;
    super.handleItemToClient(item);

    CompoundTag tag = item.getTag();
    if (tag == null) return item;

    // Rewrite spawn eggs (id checks are done in the method itself)
    EntityIdRewriter.toClientItem(item, true);

    if (tag.get("ench") instanceof ListTag) {
        enchantmentRewriter.rewriteEnchantmentsToClient(tag, false);
    }
    if (tag.get("StoredEnchantments") instanceof ListTag) {
        enchantmentRewriter.rewriteEnchantmentsToClient(tag, true);
    }
    return item;
}
 

public void handleToClient(Item item) {
    CompoundTag tag = item.getTag();
    if (tag == null) return;

    if (tag.get("Enchantments") instanceof ListTag) {
        rewriteEnchantmentsToClient(tag, false);
    }
    if (tag.get("StoredEnchantments") instanceof ListTag) {
        rewriteEnchantmentsToClient(tag, true);
    }
}
 

protected CompoundTag createViaNBT(Item item) {
    CompoundTag tag = new CompoundTag(nbtTagName);
    tag.put(new ShortTag("id", (short) item.getIdentifier()));
    if (item.getAmount() != 1) {
        tag.put(new ByteTag("amount", item.getAmount()));
    }
    if (item.getData() != 0) {
        tag.put(new ShortTag("data", item.getData()));
    }
    if (item.getTag() != null) {
        tag.put(CONVERTER.convert("extras", CONVERTER.convert(item.getTag())));
    }
    return tag;
}
 

@Nullable
public Item handleItemToServer(Item item) {
    if (item == null) return null;

    CompoundTag tag = item.getTag();
    if (tag == null) {
        if (toServerRewriter != null) {
            item.setIdentifier(toServerRewriter.rewrite(item.getIdentifier()));
        }
        return item;
    }

    CompoundTag viaTag = tag.remove(nbtTagName);
    if (viaTag != null) {
        short id = (short) viaTag.get("id").getValue();
        item.setIdentifier(id);

        Tag dataTag = viaTag.get("data");
        short data = dataTag != null ? (short) dataTag.getValue() : 0;
        item.setData(data);

        Tag amountTag = viaTag.get("amount");
        byte amount = amountTag != null ? (byte) amountTag.getValue() : 1;
        item.setAmount(amount);

        CompoundTag extras = viaTag.get("extras");
        if (extras != null) {
            item.setTag(CONVERTER.convert("", CONVERTER.convert(extras)));
        }
    } else {
        // Rewrite id normally
        if (toServerRewriter != null) {
            item.setIdentifier(toServerRewriter.rewrite(item.getIdentifier()));
        }
    }
    return item;
}
 

private static boolean hasEntityTag(Item item) {
    if (item == null || item.getIdentifier() != 383) return false; // Monster Egg

    CompoundTag tag = item.getTag();
    if (tag == null) return false;

    Tag entityTag = tag.get("EntityTag");
    return entityTag instanceof CompoundTag && ((CompoundTag) entityTag).get("id") instanceof StringTag;
}
 

public void handleToServer(Item item) {
    CompoundTag tag = item.getTag();
    if (tag == null) return;

    if (tag.contains(nbtTagName + "|Enchantments")) {
        rewriteEnchantmentsToServer(tag, false);
    }
    if (tag.contains(nbtTagName + "|StoredEnchantments")) {
        rewriteEnchantmentsToServer(tag, true);
    }
}
 

public static Item toServer(Item item) {
	if (item==null) return null;

	CompoundTag tag = item.getTag();

	if (tag==null || !item.getTag().contains("ViaRewind1_7_6_10to1_8")) return item;

	CompoundTag viaVersionTag = tag.remove("ViaRewind1_7_6_10to1_8");

	item.setIdentifier((short) viaVersionTag.get("id").getValue());
	item.setData((Short) viaVersionTag.get("data").getValue());

	if (viaVersionTag.contains("noDisplay")) tag.remove("display");

	if (viaVersionTag.contains("displayName")) {
		CompoundTag display = tag.get("display");
		if (display==null) tag.put(display = new CompoundTag("display"));
		StringTag name = display.get("Name");
		if (name==null) display.put(new StringTag("Name", (String) viaVersionTag.get("displayName").getValue()));
		else name.setValue((String) viaVersionTag.get("displayName").getValue());
	} else if (tag.contains("display")) {
		((CompoundTag)tag.get("display")).remove("Name");
	}

	if (item.getIdentifier()==387) {
		ListTag oldPages = viaVersionTag.get("pages");
		tag.remove("pages");
		tag.put(oldPages);
	}

	return item;
}
 

@Override
public Item handleItemToClient(Item item) {
    if (item == null) return null;

    // Custom mappings/super call moved down
    int originalId = item.getIdentifier();

    Integer rawId = null;
    boolean gotRawIdFromTag = false;

    CompoundTag tag = item.getTag();

    // Use tag to get original ID and data
    Tag originalIdTag;
    if (tag != null && (originalIdTag = tag.remove(extraNbtTag)) != null) {
        rawId = (Integer) originalIdTag.getValue();
        gotRawIdFromTag = true;
    }

    if (rawId == null) {
        // Look for custom mappings
        super.handleItemToClient(item);

        // No custom mapping found, look at VV mappings
        if (item.getIdentifier() == originalId) {
            int oldId = MappingData.oldToNewItems.inverse().get(item.getIdentifier());
            if (oldId != -1) {
                rawId = itemIdToRaw(oldId, item, tag);
            } else if (item.getIdentifier() == 362) { // base/colorless shulker box
                rawId = 0xe50000; // purple shulker box
            } else {
                if (!Via.getConfig().isSuppressConversionWarnings() || Via.getManager().isDebug()) {
                    ViaBackwards.getPlatform().getLogger().warning("Failed to get 1.12 item for " + originalId);
                }

                rawId = 0x10000;
            }
        } else {  // Use the found custom mapping
            // Take the newly added tag
            if (tag == null) {
                tag = item.getTag();
            }

            rawId = itemIdToRaw(item.getIdentifier(), item, tag);
        }
    }

    item.setIdentifier(rawId >> 16);
    item.setData((short) (rawId & 0xFFFF));

    // NBT changes
    if (tag != null) {
        if (isDamageable(item.getIdentifier())) {
            Tag damageTag = tag.remove("Damage");
            if (!gotRawIdFromTag && damageTag instanceof IntTag) {
                item.setData((short) (int) damageTag.getValue());
            }
        }

        if (item.getIdentifier() == 358) { // map
            Tag mapTag = tag.remove("map");
            if (!gotRawIdFromTag && mapTag instanceof IntTag) {
                item.setData((short) (int) mapTag.getValue());
            }
        }

        // Shield and banner
        invertShieldAndBannerId(item, tag);

        // Display Name now uses JSON
        CompoundTag display = tag.get("display");
        if (display != null) {
            StringTag name = display.get("Name");
            if (name instanceof StringTag) {
                StringTag via = display.remove(extraNbtTag + "|Name");
                name.setValue(via != null ? via.getValue() : ChatRewriter.jsonTextToLegacy(name.getValue()));
            }
        }

        // ench is now Enchantments and now uses identifiers
        rewriteEnchantmentsToClient(tag, false);
        rewriteEnchantmentsToClient(tag, true);

        rewriteCanPlaceToClient(tag, "CanPlaceOn");
        rewriteCanPlaceToClient(tag, "CanDestroy");
    }
    return item;
}
 

@Override
@Nullable
public Item handleItemToClient(Item item) {
    if (item == null) return null;

    MappedLegacyBlockItem data = replacementData.get(item.getIdentifier());
    if (data == null) {
        // Just rewrite the id
        return super.handleItemToClient(item);
    }

    if (item.getTag() == null) {
        item.setTag(new CompoundTag(""));
    }

    // Backup data for toServer
    short originalData = item.getData();
    item.getTag().put(createViaNBT(item));

    item.setIdentifier(data.getId());
    // Keep original data if mapped data is set to -1
    if (data.getData() != -1) {
        item.setData(data.getData());
    }

    // Set display name
    if (data.getName() != null) {
        CompoundTag tag = item.getTag().get("display");
        if (tag == null) {
            item.getTag().put(tag = new CompoundTag("display"));
        }
        StringTag nameTag = tag.get("Name");
        if (nameTag == null) {
            tag.put(nameTag = new StringTag("Name", data.getName()));
        }

        // Handle colors
        String value = nameTag.getValue();
        if (value.contains("%vb_color%")) {
            tag.put(new StringTag("Name", value.replace("%vb_color%", BlockColors.get(originalData))));
        }
    }
    return item;
}
 

public static Item toClient(Item item) {
	if (item==null) return null;

	CompoundTag tag = item.getTag();
	if (tag==null) item.setTag(tag = new CompoundTag(""));

	CompoundTag viaVersionTag = new CompoundTag("ViaRewind1_7_6_10to1_8");
	tag.put(viaVersionTag);

	viaVersionTag.put(new ShortTag("id", (short) item.getIdentifier()));
	viaVersionTag.put(new ShortTag("data", item.getData()));

	CompoundTag display = tag.get("display");
	if (display!=null && display.contains("Name")) {
		viaVersionTag.put(new StringTag("displayName", (String) display.get("Name").getValue()));
	}

	if (display!=null && display.contains("Lore")) {
		viaVersionTag.put(new ListTag("lore", ((ListTag)display.get("Lore")).getValue()));
	}

	if (tag.contains("ench") || tag.contains("StoredEnchantments")) {
		ListTag enchTag = tag.contains("ench") ? tag.get("ench") : tag.get("StoredEnchantments");
		List<Tag> enchants = enchTag.getValue();
		List<Tag> lore = new ArrayList<>();
		for (Tag ench : enchants) {
			short id = (short) ((CompoundTag)ench).get("id").getValue();
			short lvl = (short) ((CompoundTag)ench).get("lvl").getValue();
			String s;
			if (id==8) {
				s  = "§r§7Depth Strider ";
			} else {
				continue;
			}
			enchTag.remove(ench);
			s += Enchantments.ENCHANTMENTS.getOrDefault(lvl, "enchantment.level." + lvl);
			lore.add(new StringTag("", s));
		}
		if (!lore.isEmpty()) {
			if (display==null) {
				tag.put(display = new CompoundTag("display"));
				viaVersionTag.put(new ByteTag("noDisplay"));
			}
			ListTag loreTag = display.get("Lore");
			if (loreTag==null) display.put(loreTag = new ListTag("Lore", StringTag.class));
			lore.addAll(loreTag.getValue());
			loreTag.setValue(lore);
		}
	}

	if (item.getIdentifier()==387 && tag.contains("pages")) {
		ListTag pages = tag.get("pages");
		ListTag oldPages = new ListTag("pages", StringTag.class);
		viaVersionTag.put(oldPages);

		for (int i = 0; i<pages.size(); i++) {
			StringTag page = pages.get(i);
			String value = page.getValue();
			oldPages.add(new StringTag(page.getName(), value));
			value = ChatUtil.jsonToLegacy(value);
			page.setValue(value);
		}
	}

	ReplacementRegistry1_7_6_10to1_8.replace(item);

	if (viaVersionTag.size()==2 && (short)viaVersionTag.get("id").getValue()==item.getIdentifier() && (short)viaVersionTag.get("data").getValue()==item.getData()) {
		item.getTag().remove("ViaRewind1_7_6_10to1_8");
		if (item.getTag().isEmpty()) item.setTag(null);
	}

	return item;
}