//+------------------------------------------------------------------+
//|                                                   3LineBreak.mq4 |
//|                               Copyright © 2004, Poul_Trade_Forum |
//|                                                         Aborigen |
//|                                          http://forex.kbpauk.ru/ |
//+------------------------------------------------------------------+
#property copyright "Poul Trade Forum"
#property link      "http://forex.kbpauk.ru/"
#property indicator_chart_window
#property indicator_buffers 2
//---- input parameters
extern int Lines_Break = 3;
//---- buffers
double HighBuffer[];
double LowBuffer[];
double VALUE1, VALUE2, Swing=1, OLDSwing;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
    string short_name;
    //---- indicator line
    SetIndexStyle(0, DRAW_HISTOGRAM, EMPTY, 2, Blue);
    SetIndexStyle(1, DRAW_HISTOGRAM, EMPTY, 2, Red);
    //----
    SetIndexBuffer(0, HighBuffer);
    SetIndexBuffer(1, LowBuffer);
    //----
    SetIndexEmptyValue(0, 0);
    SetIndexEmptyValue(1, 0);
    //---- name for DataWindow and indicator subwindow label
    short_name = "3LineBreak";
    IndicatorShortName(short_name);
    SetIndexLabel(0, short_name);
    //----
    SetIndexDrawBegin(0, 10);
    SetIndexDrawBegin(1, 10);
    //----
    return(0);
  }
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
    int counted_bars = IndicatorCounted(), i, shift;
    //---- TODO: add your code here
    if(counted_bars == 0) 
        counted_bars = Lines_Break + 1;
    i = (Bars - counted_bars);
    //----
    for(shift = i; shift >= 0; shift--)
      {
        OLDSwing = Swing;
        VALUE1 = High[Highest(NULL, 0, MODE_HIGH, Lines_Break, shift + 1)];
        VALUE2 = Low[Lowest(NULL, 0, MODE_LOW, Lines_Break, shift + 1)];
        if(OLDSwing == 1 &&  Low[shift] < VALUE2) 
            Swing = -1;
        if(OLDSwing == -1 && High[shift] > VALUE1 ) 
            Swing = 1;
        if(Swing == 1) 
          { 
            HighBuffer[shift] = High[shift]; 
            LowBuffer[shift] = Low[shift]; 
          }
        if(Swing == -1)
          { 
            LowBuffer[shift] = High[shift]; 
            HighBuffer[shift] = Low[shift]; 
          }
        //----
      }
    return(0);
  }
//+------------------------------------------------------------------+