Example ACSIL Trading Systems

Example

#include "sierrachart.h"

SCDLLName("SCTradingExample1")

/*
Overview
--------
An example of a trading system that enters a new position or 
reverses an existing one on the crossover of two study Subgraphs. 

When line1 crosses line2 from below the system will go long. 

When line1 crosses line2 from above, the system will go short.

Comments
--------
* Let the user of this trading system study select the two study 
Subgraph lines to monitor for a crossover. This is accomplished using 
sc.Input[].SetStudySubgraphValues. In the Study Settings the user is 
provided with list boxes to select the study and subgraph. 

* The example uses the Auto Trade Management reversal functionality by 
setting sc.SupportReversals to 1. This means that we simply call 
sc.BuyEntry for a long and sc.SellEntry for a short with the number of 
contracts we want to long/short. In the example the number of contracts 
is 1. 

  So:
  ** If we are flat, we will enter 1 contract long/short. 
  ** If we are currently short, Sierra Chart will reverse the position
     for us and we will be 1 long.
  ** If we are currently long, Sierra Chart will reverse the Position
     for us and we will be 1 short.

* For the simplicity of the example, the study process events on the
  close of the bar.

* To keep the example simple, the study uses market order types to enter the Position.

* Note that if the system enters a Position, and the user manually
  closes the Position, the system will remain flat until the next
  crossover at which point a new Position will be established.

*/


SCSFExport scsf_SC_TradingCrossOverExample(SCStudyInterfaceRef sc)
{

	SCInputRef Input_Subgraph1Reference = sc.Input[0];
	SCInputRef Input_Subgraph2Reference = sc.Input[1];

	SCSubgraphRef Subgraph_BuyEntry = sc.Subgraph[0];
	SCSubgraphRef Subgraph_SellEntry = sc.Subgraph[1];

	if (sc.SetDefaults)
	{

		// Set the configuration and defaults

		sc.GraphName = "Trading CrossOver Example";

		sc.StudyDescription = "An example of a trading system that enters a new position or \
                               reverses an existing one on the crossover of two study Subgraphs. \
                               When Subgraph1Reference crosses Subgraph2Reference from below, the system will look to be long. \
                               When Subgraph1Reference crosses Subgraph2Reference from above, the system will look to be short.";

		sc.AutoLoop = 1;  // true
		sc.GraphRegion = 0;
		sc.CalculationPrecedence = LOW_PREC_LEVEL;

		Input_Subgraph1Reference.Name = "Line1";
		Input_Subgraph1Reference.SetStudySubgraphValues(1, 0);

		Input_Subgraph2Reference.Name = "Line2";
		Input_Subgraph2Reference.SetStudySubgraphValues(1, 0);

		Subgraph_BuyEntry.Name = "Bullish";
		Subgraph_BuyEntry.DrawStyle = DRAWSTYLE_POINT_ON_HIGH;
		Subgraph_BuyEntry.LineWidth = 3;

		Subgraph_SellEntry.Name = "Bearish";
		Subgraph_SellEntry.DrawStyle = DRAWSTYLE_POINT_ON_LOW;
		Subgraph_SellEntry.LineWidth = 3;

		sc.AllowMultipleEntriesInSameDirection = false;
		sc.MaximumPositionAllowed = 5;
		sc.SupportReversals = true;

		// This is false by default. Orders will go to the simulation system always.
		sc.SendOrdersToTradeService = false;

		sc.AllowOppositeEntryWithOpposingPositionOrOrders = false;
		sc.SupportAttachedOrdersForTrading = false;

		sc.CancelAllOrdersOnEntriesAndReversals = true;
		sc.AllowEntryWithWorkingOrders = false;
		sc.CancelAllWorkingOrdersOnExit = true;
		sc.AllowOnlyOneTradePerBar = true;

		sc.MaintainTradeStatisticsAndTradesData = true;

		return;
	}

	// only process at the close of the bar; if it has not closed don't do anything
	if (sc.GetBarHasClosedStatus() == BHCS_BAR_HAS_NOT_CLOSED)
	{
		return;
	}


	// using the Input_Subgraph1Reference and Input_Subgraph2Reference input variables, 
	// retrieve the subgraph arrays into Subgraph1Reference, Subgraph2Reference arrays respectively
	SCFloatArray Subgraph1Reference;
	sc.GetStudyArrayUsingID(Input_Subgraph1Reference.GetStudyID(), Input_Subgraph1Reference.GetSubgraphIndex(), Subgraph1Reference);

	SCFloatArray Subgraph2Reference;
	sc.GetStudyArrayUsingID(Input_Subgraph2Reference.GetStudyID(), Input_Subgraph2Reference.GetSubgraphIndex(), Subgraph2Reference);

	// code below is where we check for crossovers and take action accordingly

	if (sc.CrossOver(Subgraph1Reference, Subgraph2Reference) == CROSS_FROM_BOTTOM)
	{
		// mark the crossover on the chart
		Subgraph_BuyEntry[sc.Index] = sc.Low[sc.Index];

		// Create a market order and enter long.
		s_SCNewOrder NewOrder;
		NewOrder.OrderQuantity = 1;
		NewOrder.OrderType = SCT_ORDERTYPE_MARKET;
		NewOrder.TimeInForce = SCT_TIF_GOOD_TILL_CANCELED;

		sc.BuyEntry(NewOrder);
	}

	if (sc.CrossOver(Subgraph1Reference, Subgraph2Reference) == CROSS_FROM_TOP)
	{
		// mark the crossover on the chart
		Subgraph_SellEntry[sc.Index] = sc.High[sc.Index];

		// create a market order and enter short
		s_SCNewOrder NewOrder;
		NewOrder.OrderQuantity = 1;
		NewOrder.OrderType = SCT_ORDERTYPE_MARKET;
		NewOrder.TimeInForce = SCT_TIF_GOOD_TILL_CANCELED;

		sc.SellEntry(NewOrder);
	}
}