-- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=2275 --+------------------------------------------------------------------+ --| Copyright © 2018, Gehtsoft USA LLC | --| http://fxcodebase.com | --+------------------------------------------------------------------+ --| Support our efforts by donating | --| Paypal: https://goo.gl/9Rj74e | --| BitCoin : 15VCJTLaz12Amr7adHSBtL9v8XomURo9RF | --| BitCoin Cash: 1BEtS465S3Su438Kc58h2sqvVvHK9Mijtg | --| Ethereum : 0x8C110cD61538fb6d7A2B47858F0c0AaBd663068D | --| LiteCoin : LLU8PSY2vsq7B9kRELLZQcKf5nJQrdeqwD | --+------------------------------------------------------------------+ function Init() indicator:name("Darvas Box"); indicator:description("Darvas Box"); indicator:requiredSource(core.Bar); indicator:type(core.Indicator); indicator.parameters:addGroup("Style"); indicator.parameters:addColor("clrUP", "UP Color", "UP Color", core.rgb(0, 255, 0)); indicator.parameters:addInteger("width1", "Line width", "", 1, 1, 5); indicator.parameters:addInteger("style1", "Line style", "", core.LINE_SOLID); indicator.parameters:setFlag("style1", core.FLAG_LINE_STYLE); indicator.parameters:addColor("clrDN", "DN Color", "DN Color", core.rgb(255, 0, 0)); indicator.parameters:addInteger("width2", "Line width", "", 1, 1, 5); indicator.parameters:addInteger("style2", "Line style", "", core.LINE_SOLID); indicator.parameters:setFlag("style2", core.FLAG_LINE_STYLE); end local first; local source = nil; local BuffUP=nil; local BuffDN=nil; local box_top=0.; local box_bottom=0.; local state=1; local i; function Prepare(nameOnly) source = instance.source; first = source:first()+2; local name = profile:id() .. "(" .. source:name() .. ")"; instance:name(name); if (nameOnly) then return; end BuffUP = instance:addStream("BuffUP", core.Line, name .. ".UP", "UP", instance.parameters.clrUP, first); BuffUP:setWidth(instance.parameters.width1); BuffUP:setStyle(instance.parameters.style1); BuffDN = instance:addStream("BuffDN", core.Line, name .. ".DN", "DN", instance.parameters.clrDN, first); BuffDN:setWidth(instance.parameters.width2); BuffDN:setStyle(instance.parameters.style2); end function Update(period, mode) if (period>first) then box_top=0.; box_bottom=0.; state=1; for i=first,period,1 do if state==1 then box_top=source.high[i]; elseif state==2 then if box_top<=source.high[i] then box_top=source.high[i]; end elseif state==3 then if box_top>source.high[i] then box_bottom=source.low[i]; else box_top=source.high[i]; end elseif state==4 then if box_top>source.high[i] then if box_bottom>=source.low[i] then box_bottom=source.low[i]; end else box_top=source.high[i]; end elseif state==5 then if box_top>source.high[i] then if box_bottom>=source.low[i] then box_bottom=source.low[i]; end else box_top=source.high[i]; end state=0; end BuffUP[i]=box_top; BuffDN[i]=box_bottom; state=state+1; end end end