Pivot_Oscillator

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

//|                                             Pivot_Oscillator.mq5 |

//|                        Copyright 2018, MetaQuotes Software Corp. |

//|                                                 https://mql5.com |

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

#property copyright "Copyright 2018, MetaQuotes Software Corp."

#property link      "https://mql5.com"

#property version   "1.00"

#property description "Pivot Oscillator"

#property indicator_separate_window

#property indicator_buffers 6

#property indicator_plots   2

//--- plot OSC

#property indicator_label1  "Pivot Osc"

#property indicator_type1   DRAW_COLOR_HISTOGRAM

#property indicator_color1  clrGreen,clrRed,clrDarkGray

#property indicator_style1  STYLE_SOLID

#property indicator_width1  2

//--- plot Line

#property indicator_label2  "Line"

#property indicator_type2   DRAW_LINE

#property indicator_color2  clrSkyBlue

#property indicator_style2  STYLE_SOLID

#property indicator_width2  1

//--- input parameters

input uint           InpPeriodFast     =  13;         // Fast MA period

input uint           InpPeriodMedium   =  21;         // Medium MA period

input uint           InpPeriodSlow     =  34;         // Slow MA period

input ENUM_MA_METHOD InpMethod         =  MODE_SMA;   // MA method

//--- indicator buffers

double         BufferOSC[];

double         BufferColors[];

double         BufferLine[];

double         BufferFMA[];

double         BufferMMA[];

double         BufferSMA[];

//--- global variables

int            period_fma;

int            period_mma;

int            period_sma;

int            period_max;

int            handle_fma;

int            handle_mma;

int            handle_sma;

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

//| Custom indicator initialization function                         |

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

int OnInit()

  {

//--- set global variables

   period_fma=int(InpPeriodFast<1 ? 1 : InpPeriodFast);

   period_sma=int(InpPeriodSlow==period_fma ? period_fma+1 : InpPeriodSlow<1 ? 1 : InpPeriodSlow);

   period_mma=int(InpPeriodMedium==period_sma ? period_sma+1 : InpPeriodMedium<1 ? 1 : InpPeriodMedium);

   period_max=fmax(period_fma,fmax(period_mma,period_sma));

//--- indicator buffers mapping

   SetIndexBuffer(0,BufferOSC,INDICATOR_DATA);

   SetIndexBuffer(1,BufferColors,INDICATOR_COLOR_INDEX);

   SetIndexBuffer(2,BufferLine,INDICATOR_DATA);

   SetIndexBuffer(3,BufferFMA,INDICATOR_CALCULATIONS);

   SetIndexBuffer(4,BufferMMA,INDICATOR_CALCULATIONS);

   SetIndexBuffer(5,BufferSMA,INDICATOR_CALCULATIONS);

//--- setting indicator parameters

   IndicatorSetString(INDICATOR_SHORTNAME,"Pivot Osc ("+(string)period_fma+","+(string)period_mma+","+(string)period_sma+")");

   IndicatorSetInteger(INDICATOR_DIGITS,Digits());

//--- setting plot buffer parameters

   PlotIndexSetInteger(1,PLOT_SHOW_DATA,false);

//--- setting buffer arrays as timeseries

   ArraySetAsSeries(BufferOSC,true);

   ArraySetAsSeries(BufferColors,true);

   ArraySetAsSeries(BufferLine,true);

   ArraySetAsSeries(BufferFMA,true);

   ArraySetAsSeries(BufferMMA,true);

   ArraySetAsSeries(BufferSMA,true);

//--- create handles

   ResetLastError();

   handle_fma=iMA(NULL,PERIOD_CURRENT,period_fma,0,InpMethod,PRICE_TYPICAL);

   if(handle_fma==INVALID_HANDLE)

     {

      Print("The iMA(",(string)period_fma,") object was not created: Error ",GetLastError());

      return INIT_FAILED;

     }

   handle_mma=iMA(NULL,PERIOD_CURRENT,period_mma,0,InpMethod,PRICE_TYPICAL);

   if(handle_mma==INVALID_HANDLE)

     {

      Print("The iMA(",(string)period_mma,") object was not created: Error ",GetLastError());

      return INIT_FAILED;

     }

   handle_sma=iMA(NULL,PERIOD_CURRENT,period_sma,0,InpMethod,PRICE_TYPICAL);

   if(handle_sma==INVALID_HANDLE)

     {

      Print("The iMA(",(string)period_sma,") by object was not created: Error ",GetLastError());

      return INIT_FAILED;

     }

//---

   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[])

  {

//--- #AB0=>2:0 <0AA82>2 1CD5@>2 :0: B09<A5@89

   ArraySetAsSeries(high,true);

   ArraySetAsSeries(low,true);

   ArraySetAsSeries(close,true);

//--- @>25@:0 :>;8G5AB20 4>ABC?=KE 10@>2

   if(rates_total<fmax(period_max,4)) return 0;

//--- @>25@:0 8 @0AGQB :>;8G5AB20 ?@>AG8BK205<KE 10@>2

   int limit=rates_total-prev_calculated;

   if(limit>1)

     {

      limit=rates_total-2;

      ArrayInitialize(BufferOSC,EMPTY_VALUE);

      ArrayInitialize(BufferColors,2);

      ArrayInitialize(BufferLine,EMPTY_VALUE);

      ArrayInitialize(BufferFMA,0);

      ArrayInitialize(BufferMMA,0);

      ArrayInitialize(BufferSMA,0);

     }

//--- >43>B>2:0 40==KE

   int count=(limit>1 ? rates_total : 1),copied=0;

   copied=CopyBuffer(handle_fma,0,0,count,BufferFMA);

   if(copied!=count) return 0;

   copied=CopyBuffer(handle_mma,0,0,count,BufferMMA);

   if(copied!=count) return 0;

   copied=CopyBuffer(handle_sma,0,0,count,BufferSMA);

   if(copied!=count) return 0;



//---  0AGQB 8=48:0B>@0

   for(int i=limit; i>=0 && !IsStopped(); i--)

     {

      double D1=BufferFMA[i]-BufferSMA[i];

      double D2=BufferFMA[i]-BufferSMA[i];

      double D3=BufferFMA[i]-BufferFMA[i];

      double TP=(close[i]+high[i]+low[i])/3.0;

      BufferOSC[i]=BufferLine[i]=(TP!=0 ? (D1+D2+D3)/TP : 0);

      BufferColors[i]=(BufferOSC[i]>BufferOSC[i+1] ? 0 : BufferOSC[i]<BufferOSC[i+1] ? 1 : 2);

     }



//--- return value of prev_calculated for next call

   return(rates_total);

  }

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