Planejar compras, realizar operações de compra após o preço ultrapassar ou cair o preço indicado. Se usar o listão de preços, basta escrever o valor da compra, se o listão de preços limitados, é necessário especificar o preço e o número do listão de preços limitados.
var InitPrice = 0;
var Interval = 300;
var UseMarketOrder = (OpType == 0);
function _N(v, precision) {
if (typeof(precision) != 'number') {
precision = 4;
}
var s = v.toString().split(".");
if (s.length < 2 || s[1].length <= precision) {
return v;
}
var b = Math.pow(10, precision);
return Math.floor(parseFloat(v.toFixed(Math.min(10, precision+5)))*b)/b;
}
function GetTicker() {
var ticker;
while (!(ticker = exchange.GetTicker())) {
Sleep(Interval);
}
return ticker;
}
function GetDepth(e) {
if (typeof(e) == 'undefined') {
e = exchange;
}
var depth;
while (true) {
depth = e.GetDepth();
if (depth && depth.Asks.length > 0 && depth.Bids.length > 0 && depth.Asks[0].Price > depth.Bids[0].Price) {
break;
}
Sleep(Interval);
}
return depth;
}
function GetTickerFromDepth(e) {
var depth = GetDepth(e);
return {Buy : depth.Bids[0].Price, Sell : depth.Asks[0].Price, BuyAmount: depth.Bids[0].Amount, SellAmount: depth.Asks[0].Amount, depth: depth};
}
function GetOrders() {
var orders;
while (!(orders = exchange.GetOrders())) {
Sleep(Interval);
}
return orders;
}
function GetAccount() {
var account;
while (!(account = exchange.GetAccount())) {
Sleep(Interval);
}
return account;
}
function cancelPending() {
var ret = false;
while (true) {
var orders = GetOrders();
if (orders.length == 0) {
break;
}
for (var j = 0; j < orders.length; j++) {
exchange.CancelOrder(orders[j].Id, orders[j]);
ret = true;
}
}
return ret;
}
function ensureBuy() {
var account = GetAccount();
var initAccount = account;
var minStock = MinStock;
var isfirst = true;
var c = 0;
while (true) {
cancelPending();
if (!isfirst) {
account = GetAccount();
}
isfirst = false;
var needCost = _N(MarketUsedMoney - (initAccount.Balance - account.Balance));
var ticker = GetTickerFromDepth();
var price = _N(ticker.Sell);
var amount = Math.min(ticker.SellAmount, _N(needCost / price));
if (_N(needCost / price) < minStock) {
Log('计划委托完成');
break;
}
exchange.Buy(price, amount);
Sleep(100);
}
var realBuy = _N(account.Stocks - initAccount.Stocks);
return realBuy > 0 ? _N((initAccount.Balance - account.Balance) / realBuy) : 0;
}
function BuyIt() {
if (UseMarketOrder) {
var avgPrice = ensureBuy();
Log("市价单买单完成, 均价: ", avgPrice);
} else {
var success = false;
for (var i = 0; i < 20; i++) {
if (exchange.Buy(BuyPrice, BuyAmount) > 0) {
success = true;
break;
}
Sleep(Interval);
}
Log(success ? "限价单挂单完成" : "限价单下单失败");
}
}
function onTick() {
var doIt = false;
var ticker = GetTicker();
if (InitPrice > TriggerPrice && ticker.Last < TriggerPrice) {
Log('价格跌破 ', TriggerPrice, '元, 开始按计划买入');
BuyIt();
doIt = true;
} else if (InitPrice < TriggerPrice && ticker.Last > TriggerPrice) {
Log('价格涨超 ', TriggerPrice, '元, 开始按计划买入');
BuyIt();
doIt = true;
}
return doIt;
}
function main() {
var account = GetAccount();
var ticker = GetTicker();
Log('当前账户: ', account);
if (account.Balance < (UseMarketOrder ? MarketUsedMoney : (BuyPrice * BuyAmount))) {
throw "账户没有足够的钱买来币";
}
InitPrice = ticker.Last;
if (UseMarketOrder) {
msg = '时使用市价买入 ' + MarketUsedMoney + ' 元的 ' + exchange.GetCurrency();
} else {
msg = '时使用限价 ' + BuyPrice + ' 买入 ' + BuyAmount + '个 ' + exchange.GetCurrency();
}
Log('当前价格: ', InitPrice, ticker.Last > TriggerPrice ? '价格跌破' : '价格涨超', TriggerPrice, msg);
while (!onTick()) {
Sleep(LoopInterval);
}
}