/**
* Retrieves a read/write structure for collections of watchable objects.
*
* <p>This modifier will automatically marshall between the visible WrappedWatchableObject and the
* internal Minecraft WatchableObject.
*
* @return A modifier for watchable object list fields.
*/
public StructureModifier<List<WrappedWatchableObject>> getWatchableCollectionModifier() {
// Convert to and from the ProtocolLib wrapper
return structureModifier.withType(
Collection.class,
BukkitConverters.getListConverter(
MinecraftReflection.getWatchableObjectClass(),
BukkitConverters.getWatchableObjectConverter()));
}
/**
* Retrieves a read/write structure for collections of chunk positions.
*
* <p>This modifier will automatically marshall between the visible ProtocolLib ChunkPosition and
* the internal Minecraft ChunkPosition.
*
* @return A modifier for ChunkPosition list fields.
*/
public StructureModifier<List<ChunkPosition>> getPositionCollectionModifier() {
// Convert to and from the ProtocolLib wrapper
return structureModifier.withType(
Collection.class,
BukkitConverters.getListConverter(
MinecraftReflection.getChunkPositionClass(), ChunkPosition.getConverter()));
}
/**
* Retrieve a structure modifier that automatically marshalls between NBT wrappers and their NMS
* counterpart.
*
* @param stack - the stack that will store the NBT compound.
* @return The structure modifier.
*/
private static StructureModifier<NbtBase<?>> getStackModifier(ItemStack stack) {
Object nmsStack = MinecraftReflection.getMinecraftItemStack(stack);
if (itemStackModifier == null) {
itemStackModifier = new StructureModifier<Object>(nmsStack.getClass(), Object.class, false);
}
// Use the first and best NBT tag
return itemStackModifier
.withTarget(nmsStack)
.withType(MinecraftReflection.getNBTBaseClass(), BukkitConverters.getNbtConverter());
}
/**
* Retrieves a read/write structure for arrays of ItemStacks.
*
* <p>This modifier will automatically marshall between the Bukkit ItemStack and the internal
* Minecraft ItemStack.
*
* @return A modifier for ItemStack array fields.
*/
public StructureModifier<ItemStack[]> getItemArrayModifier() {
final EquivalentConverter<ItemStack> stackConverter = BukkitConverters.getItemStackConverter();
// Convert to and from the Bukkit wrapper
return structureModifier.<ItemStack[]>withType(
MinecraftReflection.getItemStackArrayClass(),
BukkitConverters.getIgnoreNull(
new EquivalentConverter<ItemStack[]>() {
public Object getGeneric(Class<?> genericType, ItemStack[] specific) {
Class<?> nmsStack = MinecraftReflection.getItemStackClass();
Object[] result = (Object[]) Array.newInstance(nmsStack, specific.length);
// Unwrap every item
for (int i = 0; i < result.length; i++) {
result[i] = stackConverter.getGeneric(nmsStack, specific[i]);
}
return result;
}
@Override
public ItemStack[] getSpecific(Object generic) {
Object[] input = (Object[]) generic;
ItemStack[] result = new ItemStack[input.length];
// Add the wrapper
for (int i = 0; i < result.length; i++) {
result[i] = stackConverter.getSpecific(input[i]);
}
return result;
}
@Override
public Class<ItemStack[]> getSpecificType() {
return ItemStack[].class;
}
}));
}
/**
* Retrieves a read/write structure for NBT classes.
*
* @return A modifier for NBT classes.
*/
public StructureModifier<NbtBase<?>> getNbtModifier() {
// Allow access to the NBT class in packet 130
return structureModifier.withType(
MinecraftReflection.getNBTBaseClass(), BukkitConverters.getNbtConverter());
}
/**
* Retrieves a read/write structure for entity objects.
*
* <p>Note that entities are transmitted by integer ID, and the type may not be enough to
* distinguish between entities and other values. Thus, this structure modifier MAY return null or
* invalid entities for certain fields. Using the correct index is essential.
*
* @return A modifier entity types.
*/
public StructureModifier<Entity> getEntityModifier(World world) {
// Convert to and from the Bukkit wrapper
return structureModifier.<Entity>withType(
int.class, BukkitConverters.getEntityConverter(world));
}
/**
* Retrieves a read/write structure for data watchers.
*
* @return A modifier for data watchers.
*/
public StructureModifier<WrappedDataWatcher> getDataWatcherModifier() {
// Convert to and from the Bukkit wrapper
return structureModifier.<WrappedDataWatcher>withType(
MinecraftReflection.getDataWatcherClass(), BukkitConverters.getDataWatcherConverter());
}
/**
* Retrieves a read/write structure for the world type enum.
*
* <p>This modifier will automatically marshall between the Bukkit world type and the internal
* Minecraft world type.
*
* @return A modifier for world type fields.
*/
public StructureModifier<WorldType> getWorldTypeModifier() {
// Convert to and from the Bukkit wrapper
return structureModifier.<WorldType>withType(
MinecraftReflection.getWorldTypeClass(), BukkitConverters.getWorldTypeConverter());
}
/**
* Retrieves a read/write structure for ItemStack.
*
* <p>This modifier will automatically marshall between the Bukkit ItemStack and the internal
* Minecraft ItemStack.
*
* @return A modifier for ItemStack fields.
*/
public StructureModifier<ItemStack> getItemModifier() {
// Convert to and from the Bukkit wrapper
return structureModifier.<ItemStack>withType(
MinecraftReflection.getItemStackClass(), BukkitConverters.getItemStackConverter());
}
