public void GenerateNextblock(string senderAddress, Node.Callback callback)
{
List <Transaction> blockData = new List <Transaction>();
Transaction coinBaseTx = Transaction.CreateCoinbaseTransaction(senderAddress, blocks.Last().index + 1);
blockData.Add(coinBaseTx);
blockData.AddRange(transactionPool.GetTransactions());
GenerateRawNextblock(blockData, callback);
}
public void GenerateRawNextblock(IEnumerable <Transaction> data, Node.Callback callback)
{
Block prev = blocks.Last();
int difficulty = GetUpdatedDifficulty();
int nextIndex = prev.index + 1;
DateTime nextTimestamp = DateTime.Now;
currentlyMining = Instantiate(blockPrefab);
currentlyMining.SetColor(chainColor);
currentlyMining.Init(nextIndex, nextTimestamp, prev.hash, data.ToArray(), difficulty);
PlaceBlock(currentlyMining);
miningCoroutine = currentlyMining.MineBlock(() =>
{
AddBlock(currentlyMining);
currentlyMining = null;
callback();
});
StartCoroutine(miningCoroutine);
}
/// <summary>
/// Mine the block with unity animations
/// </summary>
/// <param name="onMined">callback upon block successfuly found</param>
/// <returns></returns>
public IEnumerator MineBlock(Node.Callback onMined)
{
Canvas animatedHash;
Color plainColor = blockSprite.color;
Color fadedColor = new Color(plainColor.r, plainColor.g, plainColor.b, 0.2f);
do
{
yield return(new WaitForSeconds(1 / 20f)); // limit the mining speed to make the animation more readable
nonce++;
hash = ComputeHash();
blockSprite.color = Color.Lerp(plainColor, fadedColor, Time.time % 1);
animatedHash = Instantiate(animatedHashPrefab, transform, false);
animatedHash.GetComponentInChildren <Text>().text = hash;
} while (!Cryptography.HashMatchesDifficulty(hash, difficulty));
animatedHash.GetComponent <Animator>().SetTrigger("MatchDifficulty");
animatedHash.GetComponentInChildren <Text>().color = Color.green;
blockSprite.color = plainColor;
onMined();
}
