-- Id: 1138 function Init() strategy:name("3 candle signal"); strategy:setTag("NonOptimizableParameters", "Email,SendEmail,SoundFile,RecurrentSound,PlaySound,ShowAlert"); strategy:description("3 candle signal"); strategy.parameters:addGroup("Parameters"); strategy.parameters:addString("Type", "Price type", "", "Bid"); strategy.parameters:addStringAlternative("Type", "Bid", "", "Bid"); strategy.parameters:addStringAlternative("Type", "Ask", "", "Ask"); strategy.parameters:addString("Period", "Timeframe", "", "m5"); strategy.parameters:setFlag("Period", core.FLAG_PERIODS); strategy.parameters:addGroup("Signals"); strategy.parameters:addBoolean("ShowAlert", "Show Alert", "", true); strategy.parameters:addBoolean("PlaySound", "Play Sound", "", false); strategy.parameters:addFile("SoundFile", "Sound File", "", ""); end local ShowAlert; local SoundFile; local BUY, SELL; local BarSource = nil; -- the source stream function Prepare() ShowAlert = instance.parameters.ShowAlert; if instance.parameters.PlaySound then SoundFile = instance.parameters.SoundFile; else SoundFile = nil; end assert(not(PlaySound) or (PlaySound and SoundFile ~= " "), "Sound file must be specified"); SELL = " Short"; BUY = " Long"; ExtSetupSignal(" 3 candle", ShowAlert); BarSource = ExtSubscribe(1, nil, instance.parameters.Period, instance.parameters.Type == "Bid", "bar"); local name = profile:id() .. "(" .. instance.bid:instrument() .. "(" .. instance.parameters.Period .. ")" ..")"; instance:name(name); end -- when tick source is updated function ExtUpdate(id, source, period) if period > 3 then local Body= math.abs(BarSource.close[period]-BarSource.open[period]); if math.abs(BarSource.close[period-2]-BarSource.open[period-2]) < Body and math.abs(BarSource.close[period-1]-BarSource.open[period-1]) < Body then if BarSource.close[period-1] < BarSource.open[period-1] and BarSource.close[period] > BarSource.open[period] then ExtSignal(BarSource.close, period, BUY, SoundFile); end if BarSource.close[period-1] > BarSource.open[period-1] and BarSource.close[period] < BarSource.open[period] then ExtSignal(BarSource.close, period, SELL, SoundFile); end end end end dofile(core.app_path() .. "\\strategies\\standard\\include\\helper.lua");