Little help needed with EA code

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Below is an EA that I am using as a template to build an EA for a system that I use. I am not an experienced programmer and I am hoping this project will allow me to build my knowledge of mql4. The below code is working well however I am stuck on one small part. This EA will currently only have one trade open at a time. I would like simultaneous trades to be possible. Could someone please have a quick look down the code and let me know which part is limiting this. I believe that it could be the check position section. Many thanks.

#define SIGNAL_NONE 0
#define SIGNAL_BUY 1
#define SIGNAL_SELL 2
#define SIGNAL_CLOSEBUY 3
#define SIGNAL_CLOSESELL 4
extern int MagicNumber = 0;
extern bool SignalMail = False;
extern bool EachTickMode = False;
extern double Lots = 1.0;
extern int Slippage = 3;
extern bool UseStopLoss = False;
extern int StopLoss = 30;
extern bool UseTakeProfit = False;
extern int TakeProfit = 60;
extern bool UseTrailingStop = False;
extern int TrailingStop = 30;
int BarCount;
int Current;
bool TickCheck = False;
//+------------------------------------------------------------------+
//| expert initialization function |
//+------------------------------------------------------------------+
int init() {
BarCount = Bars;
if (EachTickMode) Current = 0; else Current = 1;
return(0);
}
//+------------------------------------------------------------------+
//| expert deinitialization function |
//+------------------------------------------------------------------+
int deinit() {
return(0);
}
//+------------------------------------------------------------------+
//| expert start function |
//+------------------------------------------------------------------+
int start() {
int Order = SIGNAL_NONE;
int Total, Ticket;
double StopLossLevel, TakeProfitLevel;

if (EachTickMode && Bars != BarCount) TickCheck = False;
Total = OrdersTotal();
Order = SIGNAL_NONE;
//+------------------------------------------------------------------+
//| Variable Begin |
//+------------------------------------------------------------------+

double Buy1_1 = iOpen(NULL, PERIOD_H4, Current + 0);
double Buy1_2 = iCustom(NULL, PERIOD_H4, "AndrewFX HiLo", 0, Current + 0);
double Sell1_1 = iOpen(NULL, PERIOD_H4, Current + 0);
double Sell1_2 = iCustom(NULL, PERIOD_H4, "AndrewFX HiLo", 0, Current + 0);
double CloseBuy1_1 = iOpen(NULL, PERIOD_H4, Current + 0);
double CloseBuy1_2 = iCustom(NULL, PERIOD_H4, "AndrewFX HiLo", 0, Current + 0);
double CloseSell1_1 = iOpen(NULL, PERIOD_H4, Current + 0);
double CloseSell1_2 = iCustom(NULL, PERIOD_H4, "AndrewFX HiLo", 0, Current + 0);

//+------------------------------------------------------------------+
//| Variable End |
//+------------------------------------------------------------------+
//Check position
bool IsTrade = False;
for (int i = 0; i < Total; i ++) {
OrderSelect(i, SELECT_BY_POS, MODE_TRADES);
if(OrderType() <= OP_SELL && OrderSymbol() == Symbol()) {
IsTrade = True;
if(OrderType() == OP_BUY) {
//Close
//+------------------------------------------------------------------+
//| Signal Begin(Exit Buy) |
//+------------------------------------------------------------------+
if (CloseBuy1_1 < CloseBuy1_2) Order = SIGNAL_CLOSEBUY;

//+------------------------------------------------------------------+
//| Signal End(Exit Buy) |
//+------------------------------------------------------------------+
if (Order == SIGNAL_CLOSEBUY && ((EachTickMode && !TickCheck) || (!EachTickMode && (Bars != BarCount)))) {
OrderClose(OrderTicket(), OrderLots(), Bid, Slippage, MediumSeaGreen);
if (SignalMail) SendMail("[Signal Alert]", "[" + Symbol() + "] " + DoubleToStr(Bid, Digits) + " Close Buy");
if (!EachTickMode) BarCount = Bars;
IsTrade = False;
continue;
}
//Trailing stop
if(UseTrailingStop && TrailingStop > 0) { 
if(Bid - OrderOpenPrice() > Point * TrailingStop) {
if(OrderStopLoss() < Bid - Point * TrailingStop) {
OrderModify(OrderTicket(), OrderOpenPrice(), Bid - Point * TrailingStop, OrderTakeProfit(), 0, MediumSeaGreen);
if (!EachTickMode) BarCount = Bars;
continue;
}
}
}
} else {
//Close
//+------------------------------------------------------------------+
//| Signal Begin(Exit Sell) |
//+------------------------------------------------------------------+
if (CloseSell1_1 > CloseSell1_2) Order = SIGNAL_CLOSESELL;

//+------------------------------------------------------------------+
//| Signal End(Exit Sell) |
//+------------------------------------------------------------------+
if (Order == SIGNAL_CLOSESELL && ((EachTickMode && !TickCheck) || (!EachTickMode && (Bars != BarCount)))) {
OrderClose(OrderTicket(), OrderLots(), Ask, Slippage, DarkOrange);
if (SignalMail) SendMail("[Signal Alert]", "[" + Symbol() + "] " + DoubleToStr(Ask, Digits) + " Close Sell");
if (!EachTickMode) BarCount = Bars;
IsTrade = False;
continue;
}
//Trailing stop
if(UseTrailingStop && TrailingStop > 0) { 
if((OrderOpenPrice() - Ask) > (Point * TrailingStop)) {
if((OrderStopLoss() > (Ask + Point * TrailingStop)) || (OrderStopLoss() == 0)) {
OrderModify(OrderTicket(), OrderOpenPrice(), Ask + Point * TrailingStop, OrderTakeProfit(), 0, DarkOrange);
if (!EachTickMode) BarCount = Bars;
continue;
}
}
}
}
}
}
//+------------------------------------------------------------------+
//| Signal Begin(Entry) |
//+------------------------------------------------------------------+
if (Buy1_1 > Buy1_2) Order = SIGNAL_BUY;
if (Sell1_1 < Sell1_2) Order = SIGNAL_SELL;

//+------------------------------------------------------------------+
//| Signal End |
//+------------------------------------------------------------------+
//Buy
if (Order == SIGNAL_BUY && ((EachTickMode && !TickCheck) || (!EachTickMode && (Bars != BarCount)))) {
if(!IsTrade) {
//Check free margin
if (AccountFreeMargin() < (1000 * Lots)) {
Print("We have no money. Free Margin = ", AccountFreeMargin());
return(0);
}
if (UseStopLoss) StopLossLevel = Ask - StopLoss * Point; else StopLossLevel = 0.0;
if (UseTakeProfit) TakeProfitLevel = Ask + TakeProfit * Point; else TakeProfitLevel = 0.0;
Ticket = OrderSend(Symbol(), OP_BUY, Lots, Ask, Slippage, StopLossLevel, TakeProfitLevel, "Buy(#" + MagicNumber + ")", MagicNumber, 0, DodgerBlue);
if(Ticket > 0) {
if (OrderSelect(Ticket, SELECT_BY_TICKET, MODE_TRADES)) {
Print("BUY order opened : ", OrderOpenPrice());
if (SignalMail) SendMail("[Signal Alert]", "[" + Symbol() + "] " + DoubleToStr(Ask, Digits) + " Open Buy");
} else {
Print("Error opening BUY order : ", GetLastError());
}
}
if (EachTickMode) TickCheck = True;
if (!EachTickMode) BarCount = Bars;
return(0);
}
}
//Sell
if (Order == SIGNAL_SELL && ((EachTickMode && !TickCheck) || (!EachTickMode && (Bars != BarCount)))) {
if(!IsTrade) {
//Check free margin
if (AccountFreeMargin() < (1000 * Lots)) {
Print("We have no money. Free Margin = ", AccountFreeMargin());
return(0);
}
if (UseStopLoss) StopLossLevel = Bid + StopLoss * Point; else StopLossLevel = 0.0;
if (UseTakeProfit) TakeProfitLevel = Bid - TakeProfit * Point; else TakeProfitLevel = 0.0;
Ticket = OrderSend(Symbol(), OP_SELL, Lots, Bid, Slippage, StopLossLevel, TakeProfitLevel, "Sell(#" + MagicNumber + ")", MagicNumber, 0, DeepPink);
if(Ticket > 0) {
if (OrderSelect(Ticket, SELECT_BY_TICKET, MODE_TRADES)) {
Print("SELL order opened : ", OrderOpenPrice());
if (SignalMail) SendMail("[Signal Alert]", "[" + Symbol() + "] " + DoubleToStr(Bid, Digits) + " Open Sell");
} else {
Print("Error opening SELL order : ", GetLastError());
}
}
if (EachTickMode) TickCheck = True;
if (!EachTickMode) BarCount = Bars;
return(0);
}
}
if (!EachTickMode) BarCount = Bars;
return(0);
}
//+------------------------------------------------------------------+
 
jcalow:

Could someone please have a quick look down the code and let me know which part is limiting this. I believe that it could be the check position section. Many thanks.

I think you are correct . . 

//Check position
bool IsTrade = False;
for (int i = 0; i < Total; i ++) {
OrderSelect(i, SELECT_BY_POS, MODE_TRADES);
if(OrderType() <= OP_SELL && OrderSymbol() == Symbol()) {

//   IsTrade = True;        <------------  comment out this line . . . .  but probably not a good idea on it's own

. . . you can remove it by simply commenting out that line. As a result you will probably get more than one order being placed . . . you will probably get many.

The issue you have here is that the code has been designed in a particular way, your make a change that was never really catered for and the consequences go beyond what you intended. Try it on the Strategy tester and see what happens . . .

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