-- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=60739 --+------------------------------------------------------------------+ --| 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 | --+------------------------------------------------------------------+ --| Patreon : https://goo.gl/GdXWeN | --| BitCoin : 15VCJTLaz12Amr7adHSBtL9v8XomURo9RF | --| BitCoin Cash: 1BEtS465S3Su438Kc58h2sqvVvHK9Mijtg | --| Ethereum : 0x8C110cD61538fb6d7A2B47858F0c0AaBd663068D | --| LiteCoin : LLU8PSY2vsq7B9kRELLZQcKf5nJQrdeqwD | --+------------------------------------------------------------------+ -- Indicator profile initialization routine -- Defines indicator profile properties and indicator parameters -- TODO: Add minimal and maximal value of numeric parameters and default color of the streams function Init() indicator:name("MTF Bollinger Bands"); indicator:description("MTF Bollinger Bands"); indicator:requiredSource(core.Bar); indicator:type(core.Indicator); Add(1, "Chart" ); Add(2, "W1" ); Add(3, "M1" ); AddStyle(1, core.rgb(255, 0, 0)); AddStyle(2, core.rgb(0, 255, 0)); AddStyle(3, core.rgb(0, 0, 255)); end function Add(id, TimeFrame) local iTF={"m1", "m5","m15","m30", "H1", "H2", "H3", "H4", "H6","H8", "D1", "W1", "M1" , "Chart"}; indicator.parameters:addGroup(id .. ". Time Frame"); indicator.parameters:addBoolean("On"..id, "Use This Time Frame", "", true); indicator.parameters:addString("TF"..id, "Time frame", "", TimeFrame); for i= 1, 14, 1 do indicator.parameters:addStringAlternative("TF"..id, iTF[i], "", iTF[i]); end indicator.parameters:addInteger("Period"..id, "Period", "Period", 20); indicator.parameters:addDouble("Deviation"..id, "Number of Standard Deviation", "Number of Standard Deviation", 2); indicator.parameters:addBoolean("Use"..id, "Use Central Line", "", true); indicator.parameters:addString("Price"..id, "Price Source", "", "close"); indicator.parameters:addStringAlternative("Price"..id, "OPEN", "", "open"); indicator.parameters:addStringAlternative("Price"..id, "HIGH", "", "high"); indicator.parameters:addStringAlternative("Price"..id, "LOW", "", "low"); indicator.parameters:addStringAlternative("Price"..id,"CLOSE", "", "close"); indicator.parameters:addStringAlternative("Price"..id, "MEDIAN", "", "median"); indicator.parameters:addStringAlternative("Price"..id, "TYPICAL", "", "typical"); indicator.parameters:addStringAlternative("Price"..id, "WEIGHTED", "", "weighted"); end function AddStyle(id , Color) indicator.parameters:addGroup(id .. ". Time Frame Style"); indicator.parameters:addColor("LColor"..id, "Line Color" , "Line Color" ,Color); indicator.parameters:addColor("MColor"..id, "Central Line Color", "Central Line ", Color); indicator.parameters:addInteger("Width"..id, "Line width", "", 1, 1, 5); indicator.parameters:addInteger("Style"..id, "Line style", "", core.LINE_SOLID); indicator.parameters:setFlag("Style"..id, core.FLAG_LINE_STYLE); end local Width={}; local Style={}; local Deviation={}; local offset,weekoffset; local SourceData={}; local TF={}; local host; local first; local source = nil; local loading={}; local p={}; local Number ; local Period={}; local Indicator={}; local Top={}; local Bottom={}; local Central={}; local Use={}; local MColor={}; local LColor={}; local Price={}; local Last; -- Routine function Prepare(nameOnly) source = instance.source; host=core.host; offset = host:execute("getTradingDayOffset"); weekoffset = host:execute("getTradingWeekOffset"); Number=0; local name = profile:id() .. "(" .. source:name() .. ")"; instance:name(name); if (nameOnly) then return; end local i; for i = 1, 3, 1 do local s, e, s1, e1; s, e = core.getcandle(source:barSize(), core.now(), 0, 0); if instance.parameters:getString("TF" .. i) == "Chart" then s1, e1 = core.getcandle(source:barSize(), core.now(), 0, 0); else s1, e1 = core.getcandle(instance.parameters:getString("TF" .. i), core.now(), 0, 0); end if instance.parameters:getBoolean ("On"..i) and ((e - s) <= (e1 - s1)) then Number=Number+1; Period[Number]= instance.parameters:getInteger ("Period"..i); Price[Number]= instance.parameters:getString ("Price"..i); Use[Number]= instance.parameters:getBoolean ("Use"..i); Deviation[Number]= instance.parameters:getDouble ("Deviation"..i); TF[Number]= instance.parameters:getString("TF" .. i); if TF[Number]== "Chart" then TF[Number]= source:barSize(); end LColor[Number]= instance.parameters:getColor("LColor" .. i); MColor[Number]= instance.parameters:getColor("MColor" .. i); Width[Number]= instance.parameters:getInteger("Width" .. i); Style[Number]= instance.parameters:getInteger("Style" .. i); Test = core.indicators:create("BB", source.close ,Period[Number],Deviation[Number]); first= Test.DATA:first() ; SourceData[Number] = core.host:execute("getSyncHistory",source:instrument(), TF[Number], source:isBid(), math.min(300,first*2), 200+Number, 100+Number); Indicator[Number]= core.indicators:create("BB", SourceData[Number][Price[Number]] ,Period[Number],Deviation[Number]); loading[Number]=true; Top[Number]= instance:addStream("Top"..Number , core.Line, name .. ".Top" , "Top" , LColor[Number] , Indicator[Number].TL:first()); Bottom[Number]= instance:addStream("Bottom"..Number, core.Line, name .. ".Bottom", "Bottom", LColor[Number] , Indicator[Number].BL:first()); Top[Number]:setWidth(Width[Number]); Top[Number]:setStyle(Style[Number]); Bottom[Number]:setWidth(Width[Number]); Bottom[Number]:setStyle(Style[Number]); if Use[Number] then Central[Number]= instance:addStream("Central"..Number, core.Line, name .. ".Central", "Central", MColor[Number] , Indicator[Number].AL:first()); Central[Number]:setWidth(Width[Number]); Central[Number]:setStyle(Style[Number]); else Central[Number] = instance:addInternalStream(0, 0); end end end end -- Indicator calculation routine -- TODO: Add your code for calculation output values function Update(period, mode) local Flag = false; for j = 1, Number, 1 do if loading[j] then Flag=true; end end if Flag then return; end for i = 1, Number, 1 do Indicator[i]:update(mode); end for i= 1, Number, 1 do p[i]= Initialization(period,i) if p[i]~= false and p[i]>Indicator[i].TL:first() and Indicator[i].DATA:hasData(p[i]) then Top[i][period]=Indicator[i].TL[p[i]] Bottom[i][period]=Indicator[i].BL[p[i]] Central[i][period]=Indicator[i].AL[p[i]] end end end function Initialization(period,id) local Candle; Candle = core.getcandle(source:barSize(), source:date(period), offset, weekoffset); if loading[id] or SourceData[id]:size() == 0 then return false; end if period < source:first() then return false; end local P = core.findDate(SourceData[id], Candle, false); -- candle is not found if P < 0 then return false; else return P; end end -- the function is called when the async operation is finished function AsyncOperationFinished(cookie) local j; local Flag = false; local Count=0; for j = 1, Number, 1 do if cookie == (100+j) then loading[j] = true; elseif cookie == (200+j) then loading[j] = false; end if loading[j] then Count=Count+1; Flag=true; end if Flag then core.host:execute ("setStatus", " Loading ".. (Number-Count) .."/" .. Number); else core.host:execute ("setStatus", " Loaded ".. (Number-Count) .."/" .. Number); instance:updateFrom(0); end end return core.ASYNC_REDRAW ; end