Java Code Examples for cn.nukkit.nbt.tag.ListTag#size()

private List<String> extractStringList(Item item, String tagName) {
    CompoundTag namedTag = item.getNamedTag();
    if (namedTag == null) {
        return Collections.emptyList();
    }

    ListTag<StringTag> listTag = namedTag.getList(tagName, StringTag.class);
    if (listTag == null) {
        return Collections.emptyList();
    }

    int size = listTag.size();
    List<String> values = new ArrayList<>(size);
    for (int i = 0; i < size; i++) {
        StringTag stringTag = listTag.get(i);
        if (stringTag != null) {
            values.add(stringTag.data);
        }
    }

    return values;
}
 

public String[] getLore() {
    Tag tag = this.getNamedTagEntry("display");
    ArrayList<String> lines = new ArrayList<>();

    if (tag instanceof CompoundTag) {
        CompoundTag nbt = (CompoundTag) tag;
        ListTag<StringTag> lore = nbt.getList("Lore", StringTag.class);

        if (lore.size() > 0) {
            for (StringTag stringTag : lore.getAll()) {
                lines.add(stringTag.data);
            }
        }
    }

    return lines.toArray(new String[0]);
}
 

public String[] getLore() {
    Tag tag = this.getNamedTagEntry("display");
    ArrayList<String> lines = new ArrayList<>();

    if (tag instanceof CompoundTag) {
        CompoundTag nbt = (CompoundTag) tag;
        ListTag<StringTag> lore = nbt.getList("Lore", StringTag.class);

        if (lore.size() > 0) {
            for (StringTag stringTag : lore.getAll()) {
                lines.add(stringTag.data);
            }
        }
    }

    return lines.toArray(new String[0]);
}
 

/**
 * Switches the text of two pages with each other.
 * @return boolean indicating success
 */
public boolean swapPages(int pageId1, int pageId2) {
    Preconditions.checkArgument(pageId1 >= 0 && pageId1 < 50, "Page number " + pageId1 + " is out of range");
    Preconditions.checkArgument(pageId2 >= 0 && pageId2 < 50, "Page number " + pageId2 + " is out of range");
    if (this.hasCompoundTag()) {
        CompoundTag tag = this.getNamedTag();
        if (tag.contains("pages") && tag.get("pages") instanceof ListTag) {
            ListTag<CompoundTag> pages = tag.getList("pages", CompoundTag.class);
            if (pages.size() > pageId1 && pages.size() > pageId2) {
                String pageContents1 = pages.get(pageId1).getString("text");
                String pageContents2 = pages.get(pageId2).getString("text");
                pages.get(pageId1).putString("text", pageContents2);
                pages.get(pageId2).putString("text", pageContents1);
                return true;
            }
        }
    }
    return false;
}
 

/**
 * Adds a new page with the given page ID.
 * Creates a new page for every page between the given ID and existing pages that doesn't yet exist.
 * @return boolean indicating success
 */
public boolean addPage(int pageId) {
    Preconditions.checkArgument(pageId >= 0 && pageId < 50, "Page number " + pageId + " is out of range");
    CompoundTag tag = this.hasCompoundTag() ? this.getNamedTag() : new CompoundTag();
    ListTag<CompoundTag> pages;
    if (!tag.contains("pages") || !(tag.get("pages") instanceof ListTag)) {
        pages = new ListTag<>("pages");
        tag.putList(pages);
    } else {
        pages = tag.getList("pages", CompoundTag.class);
    }

    for (int current = pages.size(); current <= pageId; current++) {
        pages.add(createPageTag());
    }
    this.setCompoundTag(tag);
    return true;
}
 

public Item writeBook(String author, String title, ListTag<CompoundTag> pages) {
    if (pages.size() > 50 || pages.size() <= 0) return this; //Minecraft does not support more than 50 pages
    CompoundTag tag = this.hasCompoundTag() ? this.getNamedTag() : new CompoundTag();

    tag.putString("author", author);
    tag.putString("title", title);
    tag.putList(pages);

    tag.putInt("generation", GENERATION_ORIGINAL);
    tag.putString("xuid", "");

    return this.setNamedTag(tag);
}
 

protected int getSlotIndex(int index) {
    ListTag<CompoundTag> list = this.namedTag.getList("Items", CompoundTag.class);
    for (int i = 0; i < list.size(); i++) {
        if (list.get(i).getByte("Slot") == index) {
            return i;
        }
    }

    return -1;
}
 

public void removePattern(int index) {
    CompoundTag tag = this.hasCompoundTag() ? this.getNamedTag() : new CompoundTag();
    ListTag<CompoundTag> patterns = tag.getList("Patterns", CompoundTag.class);
    if(patterns.size() > index && index >= 0) {
        patterns.remove(index);
    }
    this.setNamedTag(tag);
}
 

public String[] getPages() {
    if (!this.isWritten) return new String[0];
    ListTag<CompoundTag> tag = (ListTag<CompoundTag>) this.getNamedTag().getList("pages");
    String[] pages = new String[tag.size()];
    int i = 0;
    for (CompoundTag pageCompound : tag.getAll()) {
        pages[i] = pageCompound.getString("text");
        i++;
    }
    return pages;
}
 

protected int getSlotIndex(int index) {
    ListTag<CompoundTag> list = this.namedTag.getList("Items", CompoundTag.class);
    for (int i = 0; i < list.size(); i++) {
        if (list.get(i).getByte("Slot") == index) {
            return i;
        }
    }

    return -1;
}
 

protected int getSlotIndex(int index) {
    ListTag<CompoundTag> list = this.namedTag.getList("Items", CompoundTag.class);
    for (int i = 0; i < list.size(); i++) {
        if (list.get(i).getByte("Slot") == index) {
            return i;
        }
    }

    return -1;
}
 

public String[] getPages(){
    if (!this.isWritten) return new String[0];
    ListTag<CompoundTag> tag = (ListTag<CompoundTag>) this.getNamedTag().getList("pages");
    String[] pages = new String[tag.size()];
    int i = 0;
    for (CompoundTag pageCompound : tag.getAll()) {
        pages[i] = pageCompound.getString("text");
        i++;
    }
    return pages;
}
 

protected int getSlotIndex(int index) {
    ListTag<CompoundTag> list = this.namedTag.getList("Items", CompoundTag.class);
    for (int i = 0; i < list.size(); i++) {
        if (list.get(i).getByte("Slot") == index) {
            return i;
        }
    }

    return -1;
}
 

protected int getSlotIndex(int index) {
    ListTag<CompoundTag> list = this.namedTag.getList("Items", CompoundTag.class);
    for (int i = 0; i < list.size(); i++) {
        if (list.get(i).getByte("Slot") == index) {
            return i;
        }
    }

    return -1;
}
 

protected int getSlotIndex(int index) {
    ListTag<CompoundTag> list = this.namedTag.getList("Items", CompoundTag.class);
    for (int i = 0; i < list.size(); i++) {
        if (list.get(i).getByte("Slot") == index) {
            return i;
        }
    }

    return -1;
}
 

protected int getSlotIndex(int index) {
    ListTag<CompoundTag> list = this.namedTag.getList("Items", CompoundTag.class);
    for (int i = 0; i < list.size(); i++) {
        if (list.get(i).getByte("Slot") == index) {
            return i;
        }
    }

    return -1;
}
 

protected int getSlotIndex(int index) {
    ListTag<CompoundTag> list = this.namedTag.getList("Items", CompoundTag.class);
    for (int i = 0; i < list.size(); i++) {
        if (list.get(i).getByte("Slot") == index) {
            return i;
        }
    }

    return -1;
}
 

public BlockEntityPistonArm(FullChunk chunk, CompoundTag nbt) {
    super(chunk, nbt);
    if (nbt.contains("Progress")) {
        this.progress = nbt.getFloat("Progress");
    }

    if (nbt.contains("LastProgress")) {
        this.lastProgress = (float) nbt.getInt("LastProgress");
    }

    if (nbt.contains("Sticky")) {
        this.sticky = nbt.getBoolean("Sticky");
    }

    if (nbt.contains("Extending")) {
        this.extending = nbt.getBoolean("Extending");
    }

    if (nbt.contains("powered")) {
        this.powered = nbt.getBoolean("powered");
    }

    if (nbt.contains("AttachedBlocks")) {
        ListTag blocks = nbt.getList("AttachedBlocks", IntTag.class);
        if (blocks != null && blocks.size() > 0) {
            this.attachedBlock = new Vector3((double) ((IntTag) blocks.get(0)).getData().intValue(), (double) ((IntTag) blocks.get(1)).getData().intValue(), (double) ((IntTag) blocks.get(2)).getData().intValue());
        }
    } else {
        nbt.putList(new ListTag("AttachedBlocks"));
    }

}
 

@Override
protected void initBlockEntity() {
    if (namedTag.contains("Progress")) {
        this.progress = namedTag.getFloat("Progress");
    }

    if (namedTag.contains("LastProgress")) {
        this.lastProgress = (float) namedTag.getInt("LastProgress");
    }

    if (namedTag.contains("Sticky")) {
        this.sticky = namedTag.getBoolean("Sticky");
    }

    if (namedTag.contains("Extending")) {
        this.extending = namedTag.getBoolean("Extending");
    }

    if (namedTag.contains("powered")) {
        this.powered = namedTag.getBoolean("powered");
    }

    if (namedTag.contains("AttachedBlocks")) {
        ListTag blocks = namedTag.getList("AttachedBlocks", IntTag.class);
        if (blocks != null && blocks.size() > 0) {
            this.attachedBlock = new Vector3((double) ((IntTag) blocks.get(0)).getData(), (double) ((IntTag) blocks.get(1)).getData(), (double) ((IntTag) blocks.get(2)).getData());
        }
    } else {
        namedTag.putList(new ListTag("AttachedBlocks"));
    }

    super.initBlockEntity();
}
 

protected int getSlotIndex(int index) {
    ListTag<CompoundTag> list = this.namedTag.getList("Items", CompoundTag.class);
    for (int i = 0; i < list.size(); i++) {
        if (list.get(i).getByte("Slot") == index) {
            return i;
        }
    }

    return -1;
}