2_river_indicator

//+------------------------------------------------------------------+
//|                                            2_river indicator.mq4 |
//|                                   Êàïàíèí Àëåêñàíäð aka Frog0612 |
//|                                               Frog0612@yandex.ru |
//|            Èíäèêàòîð ê ÒÑ "Äâå ðåêè v.1.0"                       |
//|                                                                  |
//+------------------------------------------------------------------+
#property copyright "MetaQuotes"
#property link      "http://forum.alpari-idc.ru/viewtopic.php?t=48186"

//#property show_inputs
#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Blue
#property indicator_color2 Red
#property indicator_color3 DeepSkyBlue
#property indicator_color4 Orange

extern int        Period_MA=20;
extern int        Method_MA=3;
//datetime          Today=0;
//int Signal_1;

//string SignalGV = "GV_Signal";                // èìÿ GV ïåðåìåííîé
//---- buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   Print("Âûïîëíÿåòñÿ init()");
   
   SetIndexStyle(0,DRAW_ARROW,0,3);
   SetIndexArrow(0,241);
   SetIndexBuffer(0,ExtMapBuffer1);
   SetIndexEmptyValue(0,0.0);
   SetIndexStyle(1,DRAW_ARROW,0,3);
   SetIndexArrow(1,242);
   SetIndexBuffer(1,ExtMapBuffer2);
   SetIndexEmptyValue(1,0.0);
   SetIndexStyle(2,DRAW_ARROW,0,3);
   SetIndexArrow(2,241);
   SetIndexBuffer(2,ExtMapBuffer3);
   SetIndexEmptyValue(2,0.0);
   SetIndexStyle(3,DRAW_ARROW,0,3);
   SetIndexArrow(3,242);
   SetIndexBuffer(3,ExtMapBuffer4);
   SetIndexEmptyValue(3,0.0);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
  Print("Âûïîëíÿåòñÿ deinit()");  
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int      counted_bars=IndicatorCounted();
   int      limit; // îãðàíè÷èòåëü ðàñ÷åòîâ
   double   MA_Hi,MA_Lo;
   // îáúÿâèì ñëóæåáíûå ïåðåìåííûå, â êîòîðûõ áóäåì õðàíèòü öåíîâûå êîîðäèíàòû ñòðåëîê
   double value1,value2,value3,value4;
   
   if (counted_bars==0)   limit=Bars-1;
   if (counted_bars>0)   limit=Bars-counted_bars-1;                                                    
   Comment("Bars=",Bars,"   limit=",limit,"  counted_bars=",counted_bars);   
//   Print  ("Bars=",Bars,"   limit=",limit,"  counted_bars=",counted_bars);
   for(int i=limit;i>=0;i--)
      {
      value1=0.0;
      value2=0.0;
      value3=0.0;
      value4=0.0;

      MA_Hi=iMA(NULL,0,Period_MA,0,Method_MA,PRICE_HIGH,i);
      MA_Lo=iMA(NULL,0,Period_MA,0,Method_MA,PRICE_LOW,i);
      
      //Åñëè åñòü ñèãíàë ê ïîêóïêå(Ñâå÷à ïåðåñåêëà ïîëíîñòüþ) - ïîñòàâèì ñèíþþ ñòðåëêó ââåðõ
      if ((Open[i]<=MA_Lo) && (Close[i]>MA_Hi) && (Close[i]>Open[i]))
         {
         value1=High[i];//çàïîìíèì öåíó ñèíåé ñòðåëêè
         Comment("H=",High[i],"L=",Low[i]);
         }

      if ((Open[i]>MA_Lo)&&(Open[i]<=MA_Hi)&&(Close[i]>MA_Hi)&&(Close[i]>Open[i]))
         {
         value3=High[i];
         Comment("H=",High[i],"L=",Low[i]);
         }

      //Åñëè åñòü ñèãíàë ê ïðîäàæå - ïîñòàâèì êðàñíóþ ñòðåëêó âíèç 
      if ((Open[i]>=MA_Hi)&&(Close[i]<MA_Lo)&&(Close[i]<Open[i]))
         {
         value2=Low[i];//çàïîìíèì öåíó êðàñíîé ñòðåëêè
         Comment("H=",High[i],"L=",Low[i]);
         }
      if ((Open[i]<MA_Hi)&&(Open[i]>=MA_Lo)&&(Close[i]<MA_Lo)&&(Close[i]<Open[i]))
         {
         value4=Low[i];
         Comment("H=",High[i],"L=",Low[i]);
         }
         
      ExtMapBuffer1[i]=value1;
      ExtMapBuffer2[i]=value2;
      ExtMapBuffer3[i]=value3;
      ExtMapBuffer4[i]=value4;

      }

   return(0);
  }