//Transfer Global Asset
public static Transaction CreateGlobalTransfer(SignDelegate sign)
{
//交易输入是 1 GAS
var inputs = new List <CoinReference> {
//coin reference A
new CoinReference()
{
PrevHash = new UInt256("0x21b64eb35881e7261c72c70f38bd6d5eb6aa18f232e08ba3022220b46c13d9a2".Remove(0, 2).HexToBytes().Reverse().ToArray()),
PrevIndex = 0
}
}.ToArray();
//交易输出是 0.999 GAS，找回到原地址
var outputs = new List <TransactionOutput> {
new TransactionOutput()
{
AssetId = Blockchain.UtilityToken.Hash, //Asset Id, this is GAS
ScriptHash = "Ad1HKAATNmFT5buNgSxspbW68f4XVSssSw".ToScriptHash(), //Receiver
Value = new Fixed8((long)(0.999 * (long)Math.Pow(10, 8))) //Value (satoshi unit)
}
}.ToArray();
//则手续费是 0.001 GAS
var tx = new ContractTransaction()
{
Outputs = outputs,
Inputs = inputs,
Attributes = new TransactionAttribute[0],
Witnesses = new Witness[0],
};
return(sign.Invoke(tx));
}
public static Transaction Claim(Wallet wallet, SignDelegate sign)
{
CoinReference[] claims = wallet.GetUnclaimedCoins().Select(p => p.Reference).ToArray();
if (claims.Length == 0)
{
return(null);
}
using (Snapshot snapshot = Blockchain.Singleton.GetSnapshot())
{
ClaimTransaction tx = new ClaimTransaction
{
Claims = claims,
Attributes = new TransactionAttribute[0],
Inputs = new CoinReference[0],
Outputs = new[]
{
new TransactionOutput
{
AssetId = Blockchain.UtilityToken.Hash,
Value = snapshot.CalculateBonus(claims),
ScriptHash = wallet.GetChangeAddress()
}
}
};
return(sign.Invoke(tx));
}
}
public static Transaction CreateGlobalTransfer(SignDelegate sign)
{
string preTxId = "0x7866a1aae60e7e6a2da87a681edf8c265db200ba68f4a96b447f85bb60c3594b";
UInt256 hash = UInt256.Parse(preTxId);
Transaction tx1 = Blockchain.Singleton.GetTransaction(hash);
Fixed8 preOutVal = tx1.Outputs[100].Value;
Fixed8 currentOutVal = new Fixed8(1 * (long)Math.Pow(10, 8));
if (preOutVal < currentOutVal)
{
Console.WriteLine("insufficient fund");
return(null);
}
var inputs = new List <CoinReference>
{
new CoinReference()
{
PrevHash = new UInt256(preTxId.Remove(0, 2).HexToBytes().Reverse().ToArray()),
PrevIndex = 100
}
}.ToArray();
var outputs = new List <TransactionOutput>();
var output1 = new TransactionOutput()
{
AssetId = UInt256.Parse(assetid),
ScriptHash = "AYuApoS1MQvJMQF7J9GiMcCA9du7s6YBwo".ToScriptHash(),
Value = currentOutVal
};
outputs.Add(output1);
if (preOutVal > currentOutVal)
{
var output2 = new TransactionOutput()
{
AssetId = UInt256.Parse(assetid),
ScriptHash = "AZi4EzuSSp4kiWCUvLZcWo8daymKf53ez6".ToScriptHash(),
Value = preOutVal - currentOutVal
};
outputs.Add(output2);
}
var tx = new ContractTransaction()
{
Outputs = outputs.ToArray(),
Inputs = inputs,
Attributes = new TransactionAttribute[0],
Witnesses = new Witness[0]
};
return(sign.Invoke(tx));
}
//CGAS MintTokens
public static void MintTokens()
{
var inputs = new List <CoinReference> {
new CoinReference()
{
PrevHash = new UInt256("0xf5088ce508d86197c991ff0ef7651ddf01f3e555f257039c972082250e899210".Remove(0, 2).HexToBytes().Reverse().ToArray()),
PrevIndex = 0
}
}.ToArray();
var outputs = new List <TransactionOutput> {
new TransactionOutput()
{
AssetId = Blockchain.UtilityToken.Hash, //Asset Id, this is GAS
ScriptHash = ScriptHash, //CGAS 地址
Value = new Fixed8((long)(1 * (long)Math.Pow(10, 8)))
}
}.ToArray();
Transaction tx = null;
using (ScriptBuilder sb = new ScriptBuilder())
{
sb.EmitAppCall(ScriptHash, "mintTokens");
sb.Emit(OpCode.THROWIFNOT);
byte[] nonce = new byte[8];
Random rand = new Random();
rand.NextBytes(nonce);
sb.Emit(OpCode.RET, nonce);
tx = new InvocationTransaction
{
Version = 1,
Script = sb.ToArray(),
Outputs = outputs,
Inputs = inputs,
Attributes = new TransactionAttribute[0],
Witnesses = new Witness[0]
};
}
var sign = new SignDelegate(SignWithWallet);
sign.Invoke(tx, "1.json", "11111111");
Verify(tx);
}
//Transfer NEP-5 Asset
public static Transaction CreateNep5Transfer(SignDelegate sign)
{
var from = "AS8UDW7aLhrywLVHFL3ny5tSBaVhWTeZjT".ToScriptHash();
var assetId = new UInt160("ceab719b8baa2310f232ee0d277c061704541cfb".HexToBytes().Reverse().ToArray());
var to = "AS8UDW7aLhrywLVHFL3ny5tSBaVhWTeZjT".ToScriptHash();
var value = 100;
//交易输入是 1 GAS
var inputs = new List <CoinReference> {
//coin reference A
new CoinReference()
{
PrevHash = new UInt256("0x51ac4f7f1662d8c9379ccce3fa7cd2085b9a865edfa53ad892352a41768dd1de".Remove(0, 2).HexToBytes().Reverse().ToArray()),
PrevIndex = 0
}
}.ToArray();
//交易输出是 0.999 GAS，找回到原地址
var outputs = new List <TransactionOutput> {
new TransactionOutput()
{
AssetId = Blockchain.UtilityToken.Hash, //Asset Id, this is NEO
ScriptHash = "AJd31a8rYPEBkY1QSxpsGy8mdU4vTYTD4U".ToScriptHash(), //Receiver
Value = new Fixed8((long)(0.999 * (long)Math.Pow(10, 8))) //Value (satoshi unit)
}
}.ToArray();
//则手续费是 0.001 GAS
//Query Balances
using (ScriptBuilder sb2 = new ScriptBuilder())
{
byte[] script;
sb2.EmitAppCall(assetId, "balanceOf", from);
sb2.Emit(OpCode.DEPTH, OpCode.PACK);
script = sb2.ToArray();
ApplicationEngine engine = ApplicationEngine.Run(script);
if (engine.State.HasFlag(VMState.FAULT))
{
return(null);
}
var balances = ((VMArray)engine.ResultStack.Pop())[0];
BigInteger sum = balances.GetBigInteger();
if (sum < value)
{
Console.WriteLine("Insufficient balance");
return(null);
}
}
//Transfer
using (ScriptBuilder sb = new ScriptBuilder())
{
sb.EmitAppCall(assetId, "transfer", from, to, value);
sb.Emit(OpCode.THROWIFNOT);
byte[] nonce = new byte[8];
Random rand = new Random();
rand.NextBytes(nonce);
sb.Emit(OpCode.RET, nonce);
var tx = new InvocationTransaction
{
Version = 1,
Script = sb.ToArray(),
Outputs = outputs,
Inputs = inputs,
Attributes = new TransactionAttribute[0],
Witnesses = new Witness[0]
};
return(sign.Invoke(tx));
}
}
