/**
* @param int $m
* @param PublicKeyInterface[] $keys
* @param bool|true $sort
* @return ScriptCreator|Script
*/
public function multisig($m, array $keys = [], $sort = true)
{
$n = count($keys);
if ($m > $n) {
throw new \LogicException('Required number of sigs exceeds number of public keys');
}
if ($n > 16) {
throw new \LogicException('Number of public keys is greater than 16');
}
if ($sort) {
$keys = Buffertools::sort($keys);
}
$opM = \BitWasp\Bitcoin\Script\encodeOpN($m);
$opN = \BitWasp\Bitcoin\Script\encodeOpN($n);
$script = ScriptFactory::create();
foreach ($keys as $key) {
if (!$key instanceof PublicKeyInterface) {
throw new \LogicException('Values in $keys[] must be a PublicKey');
}
$script->push($key->getBuffer());
}
$keyBuf = $script->getScript()->getBuffer();
$script = new Script(new Buffer(chr($opM) . $keyBuf->getBinary() . chr($opN) . chr(Opcodes::OP_CHECKMULTISIG)));
return $script;
}
/**
* @param int $n
* @return $this
*/
public function int($n)
{
if ($n === 0) {
$this->script .= chr(Opcodes::OP_0);
} else {
if ($n === -1 || $n >= 1 && $n <= 16) {
$this->script .= chr(\BitWasp\Bitcoin\Script\encodeOpN($n));
} else {
$this->script .= Number::int($n)->getBinary();
}
}
return $this;
}
