/**
* Create a new NBT wrapper from a given type.
*
* @param <T> Type
* @param type - the NBT type.
* @param name - the name of the NBT tag.
* @return The new wrapped NBT tag.
* @throws FieldAccessException If we're unable to create the underlying tag.
*/
public static <T> NbtWrapper<T> ofWrapper(NbtType type, String name) {
if (type == null) throw new IllegalArgumentException("type cannot be NULL.");
if (type == NbtType.TAG_END) throw new IllegalArgumentException("Cannot create a TAG_END.");
if (methodCreateTag == null) {
Class<?> base = MinecraftReflection.getNBTBaseClass();
// Use the base class
try {
methodCreateTag = findCreateMethod(base, byte.class, String.class);
methodCreateWithName = true;
} catch (Exception e) {
methodCreateTag = findCreateMethod(base, byte.class);
methodCreateWithName = false;
}
}
try {
// Delegate to the correct version
if (methodCreateWithName) return createTagWithName(type, name);
else return createTagSetName(type, name);
} catch (Exception e) {
// Inform the caller
throw new FieldAccessException(
String.format("Cannot create NBT element %s (type: %s)", name, type), e);
}
}
/**
* 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 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());
}