for (int x = 0; x < width; ++x) {
for (int y = 0; y < height; ++y) {
for (int z = 0; z < length; ++z) {
int index = y * width * length + z * width + x;
BaseBlock block = clipboard.getPoint(new BlockVector(x, y, z));
// Save 4096 IDs in an AddBlocks section
if (block.getType() > 255) {
if (addBlocks == null) { // Lazily create section
addBlocks = new byte[(blocks.length >> 1) + 1];
}
addBlocks[index >> 1] = (byte) (((index & 1) == 0) ?
addBlocks[index >> 1] & 0xF0 | (block.getType() >> 8) & 0xF
: addBlocks[index >> 1] & 0xF | ((block.getType() >> 8) & 0xF) << 4);
}
blocks[index] = (byte) block.getType();
blockData[index] = (byte) block.getData();
// Get the list of key/values from the block
CompoundTag rawTag = block.getNbtData();
if (rawTag != null) {
Map<String, Tag> values = new HashMap<String, Tag>();
for (Entry<String, Tag> entry : rawTag.getValue().entrySet()) {
values.put(entry.getKey(), entry.getValue());
}
values.put("id", new StringTag(block.getNbtId()));
values.put("x", new IntTag(x));
values.put("y", new IntTag(y));
values.put("z", new IntTag(z));
CompoundTag tileEntityTag = new CompoundTag(values);