3end

//+------------------------------------------------------------------+
//|                                                    3perekosa.mq4 |
//+------------------------------------------------------------------+
#property copyright "Ïîðó÷èê & aka KimIV"
#property link      "http://www.kimiv.ru"

#property indicator_separate_window
#property indicator_buffers 4
#property indicator_color1 Aqua
#property indicator_color2 Yellow
#property indicator_color3 Green
#property indicator_color4 Red

//------- Ãëîáàëüíûå ïåðåìåííûå --------------------------------------

//------- Âíåøíèå ïàðàìåòðû èíäèêàòîðà -------------------------------
extern string NameCross    = "GBPCHF"; // Íàèìåíîâàíèå êðîññà
extern string NameMain1    = "GBPUSD"; // Íàèìåíîâàíèå îñíîâíîé ïàðû 1
extern string NameMain2    = "USDCHF"; // Íàèìåíîâàíèå îñíîâíîé ïàðû 2
extern int    NumberOfBars = 1000;     // Êîëè÷åñòâî áàðîâ îáñ÷¸òà (0-âñå)
extern bool   Perevorot    = false;    // Ïåðåâîðà÷èâàåò èíäþêà îòíîñèòåëüíî ãîðèçîíòàëüíîé îñè.

//------- Áóôåðû èíäèêàòîðà ------------------------------------------
double buf0[], buf1[], buf2[], buf3[];
double C=0,P=0,P1=0,P2=0,P3=0;

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
void init() {
  SetIndexBuffer(0, buf0);
  SetIndexLabel (0, "P");
  SetIndexStyle (0, DRAW_LINE, STYLE_SOLID, 1);
  SetIndexEmptyValue(0, 0);

  SetIndexBuffer(1, buf1);
  SetIndexLabel (1, Symbol());
  SetIndexStyle (1, DRAW_LINE, STYLE_DOT, 1);
  SetIndexEmptyValue(1, 0);
  
  SetIndexBuffer(2, buf2);
  SetIndexLabel (2, "DOTS");
  SetIndexStyle (2, DRAW_ARROW, 1,3);
  SetIndexArrow (2,164);
  SetIndexEmptyValue(1, 0);
  
  SetIndexBuffer(3, buf3);
  SetIndexLabel (3, "DOTS");
  SetIndexStyle (3, DRAW_ARROW, 1,3);
  SetIndexArrow (3,164);
  SetIndexEmptyValue(1, 0);
}

//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
void deinit() {
  Comment("");
}

//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
void start() {
  int LoopBegin, sh;

      if (NumberOfBars==0) LoopBegin=Bars-1;
  else LoopBegin=NumberOfBars-1;
  LoopBegin=MathMin(Bars-1, LoopBegin);

  for (sh=LoopBegin; sh>=0; sh--) {
    P1=(iClose(NameMain1, 0, sh)*iClose(NameMain2, 0, sh)-iClose(NameCross, 0, sh))*3;
    P2=(iClose(NameMain1, 0, sh)-iClose(NameCross, 0, sh)/iClose(NameMain2, 0, sh))*3;
    P3=(iClose(NameMain2, 0, sh)-iClose(NameCross, 0, sh)/iClose(NameMain1, 0, sh))*3;
    if (Perevorot) {P1=P1*(-1);P2=P2*(-1);P3=P3*(-1);}
    C=iClose(Symbol(), 0, sh);
    P1=P1+C;
    P2=P2+C;
    P3=P3+C;
    P=(P1+P2+P3)/3;
//    Comment(P," ",P1," ",P2," ",P3);
    buf0[sh]=P;
    buf1[sh]=C;
    if (P>C) buf2[sh]=C;
    if (P<C) buf3[sh]=C;
  }
}
//+------------------------------------------------------------------+