-- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=62066 --+------------------------------------------------------------------+ --| 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("Market Direction Indicator Overlay"); indicator:description("Market Direction Indicator Overlay"); indicator:requiredSource(core.Bar); indicator:type(core.Indicator); indicator.parameters:addGroup("Calculation"); indicator.parameters:addString("Price", "Price Source", "", "close"); indicator.parameters:addStringAlternative("Price", "OPEN", "", "open"); indicator.parameters:addStringAlternative("Price", "HIGH", "", "high"); indicator.parameters:addStringAlternative("Price", "LOW", "", "low"); indicator.parameters:addStringAlternative("Price","CLOSE", "", "close"); indicator.parameters:addStringAlternative("Price", "MEDIAN", "", "median"); indicator.parameters:addStringAlternative("Price", "TYPICAL", "", "typical"); indicator.parameters:addStringAlternative("Price", "WEIGHTED", "", "weighted"); indicator.parameters:addInteger("lenMA1", "Short Length", "Short Length", 13); indicator.parameters:addInteger("lenMA2", "Long Length", "Long Length", 55); indicator.parameters:addInteger("cutoff", "No-trend cutoff", "No-trend cutoff", 2); indicator.parameters:addBoolean("sbz", "Show Below Zero", "Show Below Zero", false); indicator.parameters:addGroup("Style"); indicator.parameters:addColor("Neutral_color", "Color of Neutral", "Color of Neutral", core.rgb(128, 128, 128)); indicator.parameters:addColor("UpUp_color", "Color of Up in Up Trend", "Color of Up Trend", core.rgb(0, 255, 0)); indicator.parameters:addColor("DownUp_color", "Color of Down in Up Trend", "Color of Up Trend", core.rgb(50,205,50)); indicator.parameters:addColor("UpDown_color", "Color of Up in Down Trend", "Color of Down Trend", core.rgb(255, 0, 0)); indicator.parameters:addColor("DownDown_color", "Color of Down in Down Trend", "Color of Down Trend", core.rgb(255, 153, 0)); end -- Indicator instance initialization routine -- Processes indicator parameters and creates output streams -- TODO: Refine the first period calculation for each of the output streams. -- TODO: Calculate all constants, create instances all subsequent indicators and load all required libraries -- Parameters block local lenMA1; local lenMA2; local cutoff; local sbz; local first; local source = nil; local Price; -- Streams block local mdi = nil; local cp; local open=nil; local close=nil; local high=nil; local low=nil; -- Routine function Prepare(nameOnly) lenMA1 = instance.parameters.lenMA1; lenMA2 = instance.parameters.lenMA2; Price = instance.parameters.Price; cutoff = instance.parameters.cutoff; sbz = instance.parameters.sbz; source = instance.source; first = source:first()+math.max(lenMA1, lenMA2); local name = profile:id() .. "(" .. source:name() .. ", " .. tostring(Price) .. ", " .. tostring(lenMA1) .. ", " .. tostring(lenMA2) .. ", " .. tostring(cutoff) .. ")"; instance:name(name); if (nameOnly) then return; end open = instance:addStream("open", core.Line, name, "open", core.rgb(0, 0, 0), source:first()) high = instance:addStream("high", core.Line, name, "high", core.rgb(0, 0, 0), source:first()) low = instance:addStream("low", core.Line, name, "low", core.rgb(0, 0, 0), source:first()) close = instance:addStream("close", core.Line, name, "close", core.rgb(0, 0, 0), source:first()) instance:createCandleGroup("ZONE", "", open, high, low, close); cp = instance:addInternalStream(0, 0); mdi = instance:addInternalStream(0, 0); end -- Indicator calculation routine -- TODO: Add your code for calculation output values function Update(period) high[period]= source.high[period]; low[period]= source.low[period]; close[period] = source.close[period]; open[period] = source.open[period]; if period < first or not source:hasData(period) then open:setColor(period, instance.parameters.Neutral_color); return; end cp[period]=Calculate(period); if sbz then mdi[period] =math.abs(100*( cp[period-1] - cp[period])/((source[Price][period]+source[Price][period-1])/2)); else mdi[period] =100*( cp[period-1] - cp[period])/((source[Price][period]+source[Price][period-1])/2); end local Color; if mdi[period]<-cutoff then if mdi[period]>mdi[period-1] then Color=instance.parameters.UpDown_color; else Color=instance.parameters.DownDown_color; end elseif mdi[period]>cutoff then if mdi[period]>mdi[period-1] then Color=instance.parameters.UpUp_color; else Color=instance.parameters.DownUp_color; end else Color=instance.parameters.Neutral_color; end open:setColor(period, Color); end function Calculate(period) return lenMA1*(mathex.sum(source[Price], period-lenMA2+1, period)) - lenMA2*(mathex.sum(source[Price], period-lenMA1+1, period)) / (lenMA2-lenMA1); end