public static BigInteger balanceOf(byte[] account)
{
BigInteger balance = (BigInteger)0;
if (NeoTrace.VERBOSE)
{
NeoTrace.Trace("balanceOf():entered");
}
NPCNEP5LedgerEntry accountLedgerEntry = NPCNEP5LedgerEntry.Get(account);
if (NeoTrace.VERBOSE)
{
NPCNEP5LedgerEntry.Log("balanceOf().ledgerEntry", accountLedgerEntry);
}
if (!NPCNEP5LedgerEntry.IsMissing(accountLedgerEntry))
{
if (NeoTrace.VERBOSE)
{
NeoTrace.Trace("accountLedgerEntry is not Missing");
}
balance = NPCNEP5LedgerEntry.GetBalance(accountLedgerEntry);
}
return(balance);
}
public static bool transfer(byte[] from, byte[] to, BigInteger amount)
{
bool result = false;
if (NeoTrace.VERBOSE)
{
NeoTrace.Trace("transfer():entered", from, to, amount);
}
// https://github.com/neo-project/examples-csharp/blob/master/ICO_Template/ICO_Template.cs#L146
if (amount > 0)
{
if (NeoTrace.VERBOSE)
{
NeoTrace.Trace("transfer():amount > 0");
}
//if (Neo.SmartContract.Framework.Services.Neo.Runtime.CheckWitness(from))
{
if (from == to)
{
if (NeoTrace.VERBOSE)
{
NeoTrace.Trace("transfer():from == to");
}
result = true;
}
else
{
if (NeoTrace.VERBOSE)
{
NeoTrace.Trace("transfer():from != to");
}
NPCNEP5LedgerEntry fromLedgerEntry = NPCNEP5LedgerEntry.Get(from);
if (NeoTrace.VERBOSE)
{
NPCNEP5LedgerEntry.Log("transfer().fromLedgerEntry", fromLedgerEntry);
}
BigInteger fromBalance = NPCNEP5LedgerEntry.GetBalance(fromLedgerEntry);
if (fromBalance >= amount)
{
if (NeoTrace.VERBOSE)
{
NeoTrace.Trace("transfer():fromBalance >= amount");
}
//NPCEnvironment env = NPCEnvironment.New();
//NPCEnvironment.Initialize(env);
//BigInteger timestamp = NPCEnvironment.GetBlockTimestamp(env);
//uint h = Blockchain.GetHeight();
//Header header = Blockchain.GetHeader(h);
//BigInteger timestamp = header.Timestamp;
//Block block = Blockchain.GetBlock(h); // NEO Debugger: not implemented
//BigInteger timestamp = block.Timestamp;
BigInteger timestamp = 0;
NPCNEP5LedgerEntry.Set(fromLedgerEntry, timestamp, 0 - amount, fromBalance - amount);
NPCNEP5LedgerEntry.Put(fromLedgerEntry, from);
if (NeoTrace.VERBOSE)
{
NPCNEP5LedgerEntry.Log("transfer().fromLedgerEntry", fromLedgerEntry);
}
NPCNEP5LedgerEntry toLedgerEntry = NPCNEP5LedgerEntry.Get(to);
if (NeoTrace.VERBOSE)
{
NPCNEP5LedgerEntry.Log("transfer().toLedgerEntry", toLedgerEntry);
}
BigInteger toBalance = NPCNEP5LedgerEntry.GetBalance(toLedgerEntry);
NPCNEP5LedgerEntry.Set(toLedgerEntry, timestamp, 0 + amount, toBalance + amount);
NPCNEP5LedgerEntry.Put(toLedgerEntry, to);
if (NeoTrace.VERBOSE)
{
NPCNEP5LedgerEntry.Log("transfer().toLedgerEntry", toLedgerEntry);
}
Transfer(from, to, amount);
result = true;
}
}
}
}
return(result);
}