-- Id: 8010 -- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=31&t=27300 --+------------------------------------------------------------------+ --| Copyright © 2018, Gehtsoft USA LLC | --| http://fxcodebase.com | --+------------------------------------------------------------------+ --| Developed by : Mario Jemic | --| mario.jemic@gmail.com | --+------------------------------------------------------------------+ --| Support our efforts by donating | --| Paypal: https://goo.gl/9Rj74e | --+------------------------------------------------------------------+ --| BitCoin : 15VCJTLaz12Amr7adHSBtL9v8XomURo9RF | --| BitCoin Cash: 1BEtS465S3Su438Kc58h2sqvVvHK9Mijtg | --| Ethereum : 0x8C110cD61538fb6d7A2B47858F0c0AaBd663068D | --| LiteCoin : LLU8PSY2vsq7B9kRELLZQcKf5nJQrdeqwD | --+------------------------------------------------------------------+ local BAR = true; function Init() --The strategy profile initialization strategy:name("SAR Candle Reversal Strategy"); strategy:description(""); -- NG: optimizer/backtester hint strategy:setTag("NonOptimizableParameters", "ShowAlert,PlaySound,SoundFile,RecurrentSound,SendMail,Email"); strategy.parameters:addGroup("Price"); strategy.parameters:addString("Type", "Price Type", "", "Bid"); strategy.parameters:addStringAlternative("Type", "Bid", "", "Bid"); strategy.parameters:addStringAlternative("Type", "Ask", "", "Ask"); strategy.parameters:addString("TF", "Time frame", "", "m5"); strategy.parameters:setFlag("TF", core.FLAG_PERIODS); strategy.parameters:addGroup("Calculation"); strategy.parameters:addGroup("SAR Parameters"); strategy.parameters:addDouble("Step", "Step", "The sensitivity of SAR.", 0.02, 0.001, 1); strategy.parameters:addDouble("Max", "Max", "The maximum value of Step.", 0.2, 0.001, 10); strategy.parameters:addGroup("Optinal Exit"); strategy.parameters:addBoolean("Exit", "Use Exit", "", false); strategy.parameters:addBoolean("One", "Use SAR Exit", "", true); strategy.parameters:addBoolean("Two", "Use Price Exit", "", true); strategy.parameters:addGroup("Strategy Parameters"); strategy.parameters:addString("Direction", "Type of signal", "", "direct"); strategy.parameters:addStringAlternative("Direction", "direct", "", "direct"); strategy.parameters:addStringAlternative("Direction", "reverse", "", "reverse"); CreateTradingParameters(); strategy.parameters:addGroup("Time Parameters"); strategy.parameters:addInteger("ToTime", "Convert the date to", "", 6); strategy.parameters:addIntegerAlternative("ToTime", "EST", "", 1); strategy.parameters:addIntegerAlternative("ToTime", "UTC", "", 2); strategy.parameters:addIntegerAlternative("ToTime", "Local", "", 3); strategy.parameters:addIntegerAlternative("ToTime", "Server", "", 4); strategy.parameters:addIntegerAlternative("ToTime", "Financial", "", 5); strategy.parameters:addIntegerAlternative("ToTime", "Display", "", 6); strategy.parameters:addString("StartTime", "Start Time for Trading", "", "00:00:00"); strategy.parameters:addString("StopTime", "Stop Time for Trading", "", "24:00:00"); strategy.parameters:addBoolean("UseMandatoryClosing", "Use Mandatory Closing", "", false); strategy.parameters:addString("ExitTime", "Mandatory Closing Time", "", "23:59:00"); strategy.parameters:addInteger("ValidInterval", "Valid interval for operation in second", "", 60); end function CreateTradingParameters() strategy.parameters:addGroup("Trading Parameters"); strategy.parameters:addBoolean("AllowTrade", "Allow strategy to trade", "", false); -- NG: optimizer/backtester hint strategy.parameters:setFlag("AllowTrade", core.FLAG_ALLOW_TRADE); strategy.parameters:addString("ALLOWEDSIDE", "Allowed side", "Allowed side for trading or signaling, can be Sell, Buy or Both", "Both"); strategy.parameters:addStringAlternative("ALLOWEDSIDE", "Both", "", "Both"); strategy.parameters:addStringAlternative("ALLOWEDSIDE", "Buy", "", "Buy"); strategy.parameters:addStringAlternative("ALLOWEDSIDE", "Sell", "", "Sell"); strategy.parameters:addBoolean("AllowMultiple", "Allow Multiple", "", true); strategy.parameters:addString("Account", "Account to trade on", "", ""); strategy.parameters:setFlag("Account", core.FLAG_ACCOUNT); strategy.parameters:addInteger("Amount", "Trade Amount in Lots", "", 1, 1, 1000000); strategy.parameters:addBoolean("SetLimit", "Set Limit Orders", "", false); strategy.parameters:addInteger("Limit", "Limit Order in pips", "", 30, 1, 10000); strategy.parameters:addBoolean("SetStop", "Set Stop Orders", "", false); strategy.parameters:addInteger("Stop", "Stop Order in pips", "", 30, 1, 10000); strategy.parameters:addBoolean("TrailingStop", "Trailing stop order", "", false); strategy.parameters:addGroup("Alerts"); strategy.parameters:addBoolean("ShowAlert", "ShowAlert", "", true); strategy.parameters:addBoolean("PlaySound", "Play Sound", "", false); strategy.parameters:addFile("SoundFile", "Sound File", "", ""); strategy.parameters:setFlag("SoundFile", core.FLAG_SOUND); strategy.parameters:addBoolean("RecurrentSound", "Recurrent Sound", "", true); strategy.parameters:addBoolean("SendEmail", "Send Email", "", false); strategy.parameters:addString("Email", "Email", "", ""); strategy.parameters:setFlag("Email", core.FLAG_EMAIL); end local Source; local SoundFile = nil; local RecurrentSound = false; local ALLOWEDSIDE; local AllowMultiple; local AllowTrade; local Offer; local CanClose; local Account; local Amount; local SetLimit; local Limit; local SetStop; local Stop; local TrailingStop; local ShowAlert; local Email; local SendEmail; local BaseSize; local Step, Max; local Indicator={}; local Short={}; local Source; local Direction; local first; local Price; local Exit, One, Two; local OpenTime, CloseTime, ExitTime; local ValidInterval,UseMandatoryClosing; local ToTime; -- function Prepare(nameOnly) Step = instance.parameters.Step; Max = instance.parameters.Max; Exit= instance.parameters.Exit; One= instance.parameters.One; Two= instance.parameters.Two; -- NG: replace string comparison everytime in future. Direction = instance.parameters.Direction == "direct"; -- NG: check TF1/TF2 instead of TF assert(instance.parameters.TF ~= "t1", "The time frame must not be tick"); local name; name = profile:id() .. "( " .. instance.bid:name(); local i; name = name .. ", " .. Step.. ", " .. Max; name = name .. " )"; instance:name(name); PrepareTrading(); if nameOnly then return ; end Source = ExtSubscribe(1, nil, instance.parameters.TF, instance.parameters.Type == "Bid", "bar"); Indicator[1] = core.indicators:create("SAR", Source, Step, Max ); Short[1] = Indicator[1]:getStream(0); Short[2] = Indicator[1]:getStream(1); first=math.max(Short[1]:first(), Short[2]:first() ) ; ToTime= instance.parameters.ToTime; ValidInterval = instance.parameters.ValidInterval; UseMandatoryClosing = instance.parameters.UseMandatoryClosing; if ToTime == 1 then ToTime=core.TZ_EST; elseif ToTime == 2 then ToTime=core.TZ_UTC; elseif ToTime == 3 then ToTime=core.TZ_LOCAL; elseif ToTime == 4 then ToTime=core.TZ_SERVER; elseif ToTime == 5 then ToTime=core.TZ_FINANCIAL; elseif ToTime == 6 then ToTime=core.TZ_TS; end local valid; OpenTime, valid = ParseTime(instance.parameters.StartTime); assert(valid, "Time " .. instance.parameters.StartTime .. " is invalid"); CloseTime, valid = ParseTime(instance.parameters.StopTime); assert(valid, "Time " .. instance.parameters.StopTime .. " is invalid"); ExitTime, valid = ParseTime(instance.parameters.ExitTime); assert(valid, "Time " .. instance.parameters.ExitTime .. " is invalid"); if UseMandatoryClosing then core.host:execute("setTimer", 100, math.max(ValidInterval / 2, 1)); end end function PrepareTrading() AllowMultiple = instance.parameters.AllowMultiple; ALLOWEDSIDE = instance.parameters.ALLOWEDSIDE; local PlaySound = instance.parameters.PlaySound; if PlaySound then SoundFile = instance.parameters.SoundFile; else SoundFile = nil; end assert(not(PlaySound) or (PlaySound and SoundFile ~= ""), "Sound file must be chosen"); ShowAlert = instance.parameters.ShowAlert; RecurrentSound = instance.parameters.RecurrentSound; SendEmail = instance.parameters.SendEmail; if SendEmail then Email = instance.parameters.Email; else Email = nil; end assert(not(SendEmail) or (SendEmail and Email ~= ""), "E-mail address must be specified"); AllowTrade = instance.parameters.AllowTrade; if AllowTrade then Account = instance.parameters.Account; Amount = instance.parameters.Amount; BaseSize = core.host:execute("getTradingProperty", "baseUnitSize", instance.bid:instrument(), Account); Offer = core.host:findTable("offers"):find("Instrument", instance.bid:instrument()).OfferID; CanClose = core.host:execute("getTradingProperty", "canCreateMarketClose", instance.bid:instrument(), Account); SetLimit = instance.parameters.SetLimit; Limit = instance.parameters.Limit; SetStop = instance.parameters.SetStop; Stop = instance.parameters.Stop; TrailingStop = instance.parameters.TrailingStop; end end function ReleaseInstance() core.host:execute ("killTimer", 100); end -- NG: create a function to parse time function ParseTime(time) local Pos = string.find(time, ":"); if Pos == nil then return nil, false; end local h = tonumber(string.sub(time, 1, Pos - 1)); time = string.sub(time, Pos + 1); Pos = string.find(time, ":"); if Pos == nil then return nil, false; end local m = tonumber(string.sub(time, 1, Pos - 1)); local s = tonumber(string.sub(time, Pos + 1)); return (h / 24.0 + m / 1440.0 + s / 86400.0), -- time in ole format ((h >= 0 and h < 24 and m >= 0 and m < 60 and s >= 0 and s < 60) or (h == 24 and m == 0 and s == 0)); -- validity flag end function InRange(now, openTime, closeTime) if openTime < closeTime then return now >= openTime and now <= closeTime; end if openTime > closeTime then return now > openTime or now < closeTime; end return now == openTime; end function ExtUpdate(id, source, period) -- The method called every time when a new bid or ask price appears. if AllowTrade then if not(checkReady("trades")) or not(checkReady("orders")) then return ; end end if id ~= 1 then return; end now = core.host:execute("getServerTime"); now= core.host:execute ("convertTime", core.TZ_EST, ToTime, now); -- get only time now = now - math.floor(now); if not InRange(now, OpenTime, CloseTime) then return ; end Indicator[1]:update(core.UpdateLast); if period < first +1 then return ; end if not( Indicator[1].DN:hasData(period - 1)) and Indicator[1].DN:hasData(period) and Source.close[period]> Source.high[period-1] and Source.close[period]> Source.high[period-2] then if Direction then BUY(); else SELL(); end elseif not( Indicator[1].UP:hasData(period - 1)) and Indicator[1].UP:hasData(period) and Source.close[period] < Source.low[period-1] and Source.close[period] < Source.low[period-2] then if Direction then SELL(); else BUY(); end end if Exit then if ( not Indicator[1].DN:hasData(period) and One) or ( Source.close[period] < Source.low[period-1] and Source.close[period] < Source.low[period-2] and Two) then if Direction then if haveTrades("B") then exit("B"); Signal ("Close Long"); end else if haveTrades("S") then exit("S"); Signal ("Close Short"); end end end if ( not Indicator[1].UP:hasData(period) and One) or ( Source.close[period] > Source.high[period-1] and Source.close[period] > Source.high[period-2] and Two) then if Direction then if haveTrades("S") then exit("S"); Signal ("Close Short"); end else if haveTrades("B") then exit("B"); Signal ("Close Long"); end end end end end -- NG: Introduce async function for timer/monitoring for the order results function ExtAsyncOperationFinished(cookie, success, message) if cookie == 100 then -- timer if UseMandatoryClosing and AllowTrade then now = core.host:execute("getServerTime"); now= core.host:execute ("convertTime", core.TZ_EST, ToTime, now); -- get only time now = now - math.floor(now); -- check whether the time is in the exit time period if now >= ExitTime and now < ExitTime +(ValidInterval / 86400.0) then if not checkReady("trades") then return ; end if haveTrades("B") then exit("B"); Signal ("Close Long"); end if haveTrades("S") then exit("S"); Signal ("Close Short"); end end end elseif cookie == 200 and not success then terminal:alertMessage(instance.bid:instrument(), instance.bid[instance.bid:size() - 1], "Open order failed" .. message, instance.bid:date(instance.bid:size() - 1)); elseif cookie == 201 and not success then terminal:alertMessage(instance.bid:instrument(), instance.bid[instance.bid:size() - 1], "Close order failed" .. message, instance.bid:date(instance.bid:size() - 1)); end end --===========================================================================-- -- TRADING UTILITY FUNCTIONS -- --============================================================================-- function BUY() if AllowTrade then if haveTrades("B") and not AllowMultiple then if haveTrades("S") then exit("S"); Signal ("Close Short"); end return; end if ALLOWEDSIDE == "Sell" then if haveTrades("S") then exit("S"); Signal ("Close Short"); end return; end if haveTrades("S") then exit("S"); Signal ("Close Short"); end enter("B"); Signal ("Open Long"); elseif ShowAlert then Signal ("Up Trend"); end end function SELL() if AllowTrade then if haveTrades("S") and not AllowMultiple then if haveTrades("B") then exit("B"); Signal ("Close Long"); end return; end if ALLOWEDSIDE == "Buy" then if haveTrades("B") then exit("B"); Signal ("Close Long"); end return; end if haveTrades("B") then exit("B"); Signal ("Close Long"); end enter("S"); Signal ("Open Short"); else Signal ("Down Trend"); end end function Signal(Label) if ShowAlert then terminal:alertMessage(instance.bid:instrument(), instance.bid[NOW], Label, instance.bid:date(NOW)); end if SoundFile ~= nil then terminal:alertSound(SoundFile, RecurrentSound); end if Email ~= nil then terminal:alertEmail(Email, Label, profile:id() .. "(" .. instance.bid:instrument() .. ")" .. instance.bid[NOW]..", " .. Label..", " .. instance.bid:date(NOW)); end end function checkReady(table) return core.host:execute("isTableFilled", table); end function tradesCount(BuySell) local enum, row; local count = 0; enum = core.host:findTable("trades"):enumerator(); row = enum:next(); -- NG: to get the true count we must NOT stop when count is not a zero or -- the function will return 1 or 0 only and will work as "haveTrades" -- while count == 0 and row ~= nil do while row ~= nil do if row.AccountID == Account and row.OfferID == Offer and (row.BS == BuySell or BuySell == nil) then count = count + 1; end row = enum:next(); end return count; end function haveTrades(BuySell) local enum, row; local found = false; enum = core.host:findTable("trades"):enumerator(); row = enum:next(); while (not found) and (row ~= nil) do if row.AccountID == Account and row.OfferID == Offer and (row.BS == BuySell or BuySell == nil) then found = true; end row = enum:next(); end return found; end -- enter into the specified direction function enter(BuySell) if not(AllowTrade) then return true; end -- do not enter if position in the -- specified direction already exists if tradesCount(BuySell) > 0 and not AllowMultiple then return true; end local valuemap, success, msg; valuemap = core.valuemap(); valuemap.OrderType = "OM"; valuemap.OfferID = Offer; valuemap.AcctID = Account; valuemap.Quantity = Amount * BaseSize; valuemap.BuySell = BuySell; -- add stop/limit valuemap.PegTypeStop = "O"; if SetStop then if BuySell == "B" then valuemap.PegPriceOffsetPipsStop = -Stop; else valuemap.PegPriceOffsetPipsStop = Stop; end end if TrailingStop then valuemap.TrailStepStop = 1; end valuemap.PegTypeLimit = "O"; if SetLimit then if BuySell == "B" then valuemap.PegPriceOffsetPipsLimit = Limit; else valuemap.PegPriceOffsetPipsLimit = -Limit; end end if (not CanClose) then valuemap.EntryLimitStop = "Y"; end success, msg = terminal:execute(200, valuemap); if not(success) then terminal:alertMessage(instance.bid:instrument(), instance.bid[instance.bid:size() - 1], "Open order failed" .. msg, instance.bid:date(instance.bid:size() - 1)); return false; end return true; end -- exit from the specified direction function exit(BuySell) if not(AllowTrade) then return true; end local valuemap, success, msg; if tradesCount(BuySell) > 0 then valuemap = core.valuemap(); -- switch the direction since the order must be in oppsite direction if BuySell == "B" then BuySell = "S"; else BuySell = "B"; end valuemap.OrderType = "CM"; valuemap.OfferID = Offer; valuemap.AcctID = Account; valuemap.NetQtyFlag = "Y"; valuemap.BuySell = BuySell; success, msg = terminal:execute(201, valuemap); if not(success) then terminal:alertMessage(instance.bid:instrument(), instance.bid[instance.bid:size() - 1], "Open order failed" .. msg, instance.bid:date(instance.bid:size() - 1)); return false; end return true; end return false; end dofile(core.app_path() .. "\\strategies\\standard\\include\\helper.lua");