RainbowIndicator

ÿþ//+------------------------------------------------------------------+

//|                                             RainbowIndicator.mq4 |

//|                                                     Müller Péter |

//|                   https://www.mql5.com/en/users/mullerp04/seller |

//+------------------------------------------------------------------+

#property copyright "Müller Péter"

#property link      "https://www.mql5.com/en/users/mullerp04/seller"

#property version   "1.00"

#property strict

#property indicator_chart_window

#property indicator_buffers 6   //amount of lines

#property indicator_color1 clrRed // colors of lines

#property indicator_color2 clrOrange

#property indicator_color3 clrYellow

#property indicator_color4 clrYellowGreen

#property indicator_color5 clrAliceBlue

#property indicator_color6 clrBlue



input double AtrMultiplier = 1; // distance between moving averages and levels above/belov them

input int period = 20;  // Moving average period





double FirstBuffer[];      // Buffers

double SecondBuffer[];

double ThirdBuffer[];

double FourthBuffer[];

double FifthBuffer[];

double SixthBuffer[];



int OnInit()

  {

   SetIndexBuffer(0,FirstBuffer); //Setting up Buffers

   SetIndexBuffer(1,SecondBuffer);

   SetIndexBuffer(2,ThirdBuffer);

   SetIndexBuffer(3,FourthBuffer);

   SetIndexBuffer(4,FifthBuffer);

   SetIndexBuffer(5,SixthBuffer);

   string short_name="Period( "+IntegerToString(period)+" )" + _Symbol; // Setting and indicator short name

   IndicatorShortName(short_name);

   SetIndexDrawBegin(0,0);    // Where we want the program to begin drawing the lines

   SetIndexDrawBegin(1,0);

   SetIndexDrawBegin(2,0);

   SetIndexDrawBegin(3,0);

   SetIndexDrawBegin(4,0);

   SetIndexDrawBegin(5,0);

   return(INIT_SUCCEEDED);

  }

//+------------------------------------------------------------------+

//| Custom indicator iteration function                              |

//+------------------------------------------------------------------+

int OnCalculate(const int rates_total,

                const int prev_calculated,

                const datetime &time[],

                const double &open[],

                const double &high[],

                const double &low[],

                const double &close[],

                const long &tick_volume[],

                const long &volume[],

                const int &spread[])

  {

   if(rates_total < period) 

      return 0;



   ArraySetAsSeries(FirstBuffer,false);

   ArraySetAsSeries(SecondBuffer,false);

   ArraySetAsSeries(ThirdBuffer,false);

   ArraySetAsSeries(FourthBuffer,false);

   ArraySetAsSeries(FifthBuffer,false);

   ArraySetAsSeries(SixthBuffer,false);

   

   for(int i = prev_calculated; i < rates_total;i++)        // easy calculations

   {

      double currAtr = iATR(_Symbol,PERIOD_CURRENT,20,rates_total-i);     // current ATR value

      double HighMa = iMA(_Symbol,PERIOD_CURRENT,20,0,MODE_SMA,PRICE_HIGH,rates_total-i); // high moving average

      double LowMa = iMA(_Symbol,PERIOD_CURRENT,20,0,MODE_SMA,PRICE_LOW,rates_total-i); // low moving average

      FirstBuffer[i] = HighMa + 2*AtrMultiplier*currAtr; 

      SecondBuffer[i] = HighMa + AtrMultiplier*currAtr;

      ThirdBuffer[i] = HighMa;

      FourthBuffer[i] = LowMa;

      FifthBuffer[i] = LowMa-AtrMultiplier*currAtr;

      SixthBuffer[i] = LowMa-2*AtrMultiplier*currAtr;      

   }

   return(rates_total);

  }

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