private static Sha256Hash calcHash(int height, int pos, List<Sha256Hash> hashes) {
if (height == 0) {
// Hash at height 0 is just the regular tx hash itself.
return hashes.get(pos);
}
int h = height - 1;
int p = pos * 2;
Sha256Hash left = calcHash(h, p, hashes);
// Calculate right hash if not beyond the end of the array - copy left hash otherwise.
Sha256Hash right;
if (p + 1 < getTreeWidth(hashes.size(), h)) {
right = calcHash(h, p + 1, hashes);
} else {
right = left;
}
return combineLeftRight(left.getBytes(), right.getBytes());
}
@Override
public void neoscoinSerializeToStream(OutputStream stream) throws IOException {
uint32ToByteStreamLE(transactionCount, stream);
stream.write(new VarInt(hashes.size()).encode());
for (Sha256Hash hash : hashes) stream.write(reverseBytes(hash.getBytes()));
stream.write(new VarInt(matchedChildBits.length).encode());
stream.write(matchedChildBits);
}