i-amma

//+------------------------------------------------------------------+ 
//|                                                       i-AMMA.mq5 | 
//|                                          Copyright © 2007, RickD |
//|                                                   www.e2e-fx.net |
//+------------------------------------------------------------------+
//--- àâòîðñòâî èíäèêàòîðà
#property copyright "Copyright © 2007, RickD"
//--- ññûëêà íà ñàéò àâòîðà
#property link      "www.e2e-fx.net"
//--- íîìåð âåðñèè èíäèêàòîðà
#property version   "1.00"
//--- îòðèñîâêà èíäèêàòîðà â ãëàâíîì îêíå
#property indicator_chart_window 
//--- êîëè÷åñòâî èíäèêàòîðíûõ áóôåðîâ
#property indicator_buffers 1 
//--- èñïîëüçîâàíî âñåãî îäíî ãðàôè÷åñêîå ïîñòðîåíèå
#property indicator_plots   1
//+-----------------------------------+
//| Ïàðàìåòðû îòðèñîâêè èíäèêàòîðà    |
//+-----------------------------------+
//--- îòðèñîâêà èíäèêàòîðà â âèäå ëèíèè
#property indicator_type1   DRAW_LINE
//--- â êà÷åñòâå öâåòà áû÷åé ëèíèè èíäèêàòîðà èñïîëüçîâàí Orange öâåò
#property indicator_color1 clrOrange
//--- ëèíèÿ èíäèêàòîðà - íåïðåðûâíàÿ êðèâàÿ
#property indicator_style1  STYLE_SOLID
//--- òîëùèíà ëèíèè èíäèêàòîðà ðàâíà 2
#property indicator_width1  2
//--- îòîáðàæåíèå ìåòêè èíäèêàòîðà
#property indicator_label1  "i-AMMA"
//+-----------------------------------+
//| Âõîäíûå ïàðàìåòðû èíäèêàòîðà      |
//+-----------------------------------+
input uint MA_Period=25; // Ãëóáèíà ñãëàæèâàíèÿ                   
input int Shift=0;       // Ñäâèã èíäèêàòîðà ïî ãîðèçîíòàëè â áàðàõ
input int PriceShift=0;  // Ñäâèã èíäèêàòîðà ïî âåðòèêàëè â ïóíêòàõ
//+-----------------------------------+
//--- îáúÿâëåíèå äèíàìè÷åñêèõ ìàññèâîâ, êîòîðûå â äàëüíåéøåì
//--- áóäóò èñïîëüçîâàíû â êà÷åñòâå èíäèêàòîðíûõ áóôåðîâ
double IndBuffer[];
//--- 
double dPriceShift;
//--- îáúÿâëåíèå öåëî÷èñëåííûõ ïåðåìåííûõ íà÷àëà îòñ÷¸òà äàííûõ
int  min_rates_total;
//+------------------------------------------------------------------+    
//| i-AMMA indicator initialization function                         | 
//+------------------------------------------------------------------+  
void OnInit()
  {
//--- èíèöèàëèçàöèÿ ïåðåìåííûõ íà÷àëà îòñ÷¸òà äàííûõ
   min_rates_total=2;
//--- èíèöèàëèçàöèÿ ñäâèãà ïî âåðòèêàëè
   dPriceShift=_Point*PriceShift;
//--- ïðåâðàùåíèå äèíàìè÷åñêîãî ìàññèâà â èíäèêàòîðíûé áóôåð
   SetIndexBuffer(0,IndBuffer,INDICATOR_DATA);
//--- îñóùåñòâëåíèå ñäâèãà èíäèêàòîðà ïî ãîðèçîíòàëè íà Shift
   PlotIndexSetInteger(0,PLOT_SHIFT,Shift);
//--- îñóùåñòâëåíèå ñäâèãà íà÷àëà îòñ÷¸òà îòðèñîâêè èíäèêàòîðà
   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,min_rates_total);
//--- óñòàíîâêà çíà÷åíèé èíäèêàòîðà, êîòîðûå íå áóäóò âèäèìû íà ãðàôèêå
   PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,EMPTY_VALUE);
//--- èíèöèàëèçàöèè ïåðåìåííîé äëÿ êîðîòêîãî èìåíè èíäèêàòîðà
   string shortname;
   StringConcatenate(shortname,"i-AMMA(",MA_Period,")");
//--- ñîçäàíèå èìåíè äëÿ îòîáðàæåíèÿ â îòäåëüíîì ïîäîêíå è âî âñïëûâàþùåé ïîäñêàçêå
   IndicatorSetString(INDICATOR_SHORTNAME,shortname);
//--- îïðåäåëåíèå òî÷íîñòè îòîáðàæåíèÿ çíà÷åíèé èíäèêàòîðà
   IndicatorSetInteger(INDICATOR_DIGITS,_Digits+1);
//--- çàâåðøåíèå èíèöèàëèçàöèè
  }
//+------------------------------------------------------------------+  
//| i-AMMA iteration function                                        | 
//+------------------------------------------------------------------+  
int OnCalculate(const int rates_total,    // êîëè÷åñòâî èñòîðèè â áàðàõ íà òåêóùåì òèêå
                const int prev_calculated,// êîëè÷åñòâî èñòîðèè â áàðàõ íà ïðåäûäóùåì òèêå
                const int begin,          // íîìåð íà÷àëà äîñòîâåðíîãî îòñ÷¸òà áàðîâ
                const double &price[])    // öåíîâîé ìàññèâ äëÿ ðàñ÷¸òà èíäèêàòîðà
  {
//--- ïðîâåðêà êîëè÷åñòâà áàðîâ íà äîñòàòî÷íîñòü äëÿ ðàñ÷¸òà
   if(rates_total<min_rates_total+begin) return(0);
//--- îáúÿâëåíèå ëîêàëüíûõ ïåðåìåííûõ
   int first,bar;
   double AMMA;
//---
   if(prev_calculated>rates_total || prev_calculated<=0)// ïðîâåðêà íà ïåðâûé ñòàðò ðàñ÷¸òà èíäèêàòîðà
     {
      first=min_rates_total+begin; // ñòàðòîâûé íîìåð äëÿ ðàñ÷¸òà âñåõ áàðîâ
      IndBuffer[first-1]=price[first-1];
      //--- îñóùåñòâëåíèå ñäâèãà íà÷àëà îòñ÷¸òà îòðèñîâêè èíäèêàòîðà
      PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,min_rates_total+begin);
     }
   else first=prev_calculated-1; // ñòàðòîâûé íîìåð äëÿ ðàñ÷¸òà íîâûõ áàðîâ
//--- îñíîâíîé öèêë ðàñ÷¸òà èíäèêàòîðà
   for(bar=first; bar<rates_total && !IsStopped(); bar++)
     { 
      AMMA=((MA_Period-1)*(IndBuffer[bar-1]-dPriceShift)+price[bar])/MA_Period;       
      IndBuffer[bar]=AMMA+dPriceShift;
     }
//---     
   return(rates_total);
  }
//+------------------------------------------------------------------+