//+------------------------------------------------------------------
//    															  ds_HDiv_OsMA.mq4
//												   			  dolsergon@yandex.ru
//														         icq(qip)-366382375
//+------------------------------------------------------------------+
//|                                                         OsMA.mq4 |
//|                      Copyright © 2004, MetaQuotes Software Corp. |
//|                                       http://www.metaquotes.net/ |
//+------------------------------------------------------------------+
#property  copyright "Copyright © 2004, MetaQuotes Software Corp."
#property  link      "http://www.metaquotes.net/"
//---- indicator settings
#property  indicator_separate_window
#property  indicator_buffers 3
#property  indicator_color1  Silver
#property  indicator_width1  2
#property  indicator_color2  Blue
#property  indicator_width2  1
#property  indicator_color3  Orange
#property  indicator_width3  1
//---- indicator parameters
extern int FastEMA=12;
extern int SlowEMA=26;
extern int SignalSMA=9;

extern int FractRightBars = 1;	// кол-во бар справа (фрактал)
extern int FractLeftBars = 4;		// кол-во бар слева (фрактал)
extern int MaxFanSize = 3;			// макс. кол-во линий в "веере"


	
//---- indicator buffers
double     OsmaBuffer[];
double     MacdBuffer[];
double     SignalBuffer[];
double		FrUpBuffer[];
double		FrDnBuffer[];

string IndName;

//=======================================================================================================================================================================
int init()
  {
//---- 2 additional buffers are used for counting.
   IndicatorBuffers(5);
//---- drawing settings
   SetIndexStyle(0,DRAW_HISTOGRAM);
   SetIndexDrawBegin(0,SignalSMA);
   IndicatorDigits(Digits+2);
//---- 3 indicator buffers mapping
   SetIndexBuffer(0,OsmaBuffer);
   
   SetIndexBuffer(1, FrDnBuffer);
   SetIndexStyle(1, DRAW_ARROW);
   SetIndexArrow(1, 119);
   SetIndexEmptyValue(1, 0.0);
   
   SetIndexBuffer(2, FrUpBuffer);
   SetIndexStyle(2, DRAW_ARROW);
   SetIndexArrow(2, 119);
   SetIndexEmptyValue(2, 0.0);
   
   SetIndexBuffer(3,MacdBuffer);
   SetIndexBuffer(4,SignalBuffer);
//---- name for DataWindow and indicator subwindow label
	IndName = "ds_HDiv_OsMA("+FastEMA+","+SlowEMA+","+SignalSMA+")";
   IndicatorShortName(IndName);
//---- initialization done
   return(0);
  }
  

  
//=======================================================================================================================================================================
void deinit() {

	ObjectsDeleteAll();
}
  
  
//=======================================================================================================================================================================
//| Moving Average of Oscillator                                     |
int start()
  {
   int limit;
   int counted_bars=IndicatorCounted();
//---- last counted bar will be recounted
   if(counted_bars>0) counted_bars--;
   limit=Bars-counted_bars;
//---- macd counted in the 1-st additional buffer
   for(int i=0; i<limit; i++)
      MacdBuffer[i]=iMA(NULL,0,FastEMA,0, MODE_EMA, PRICE_CLOSE, i)-iMA(NULL,0,SlowEMA,0,MODE_EMA, PRICE_CLOSE, i);
//---- signal line counted in the 2-nd additional buffer
   for(i=0; i<limit; i++)
      SignalBuffer[i]=iMAOnArray(MacdBuffer,Bars,SignalSMA,0,MODE_SMA,i);
//---- main loop
   for(i=0; i<limit; i++)
      OsmaBuffer[i]=MacdBuffer[i]-SignalBuffer[i];
//---- done










// FRACTALS -------------------------------------------------------------------------------------------------------------------------------------------------------------

	//-------------------------------------------------------------------------------------
	
	int l_bars, r_bars;
	int p;
	double v, v2;

   for(i=1+FractRightBars; i<limit; i++) {
	
		l_bars = 0;
		r_bars = 0;
		v = OsmaBuffer[i];
		for (p=1; p<=FractLeftBars; p++) {
			if (OsmaBuffer[i+p] > v) {
				l_bars++;
				v = OsmaBuffer[i+p];
			} else    break;
		}
		v = OsmaBuffer[i];
		for (p=1; p<=FractRightBars; p++) {
			if (OsmaBuffer[i-p] >= v) {
				r_bars++;
				v = OsmaBuffer[i-p];
			} else    break;
		}
		if ( (l_bars == FractLeftBars) && (r_bars == FractRightBars)) {
			FrDnBuffer[i] = OsmaBuffer[i];
		}



		l_bars = 0;
		r_bars = 0;
		v = OsmaBuffer[i];
		for (p=1; p<=FractLeftBars; p++) {
			if (OsmaBuffer[i+p] < v) {
				l_bars++;
				v = OsmaBuffer[i+p];
			} else    break;
		}
		v = OsmaBuffer[i];
		for (p=1; p<=FractRightBars; p++) {
			if (OsmaBuffer[i-p] <= v) {
				r_bars++;
				v = OsmaBuffer[i-p];
			} else    break;
		}
		if ( (l_bars == FractLeftBars) && (r_bars == FractRightBars)) {
			FrUpBuffer[i] = OsmaBuffer[i];
		}


	}




// DIVERGENCE -----------------------------------------------------------------------------------------------------------------------------------------------------------

	int PointsOffset = 9;

   for(p=1+FractRightBars; p<limit; p++) {

		
		if (FrUpBuffer[p] != 0) {
			int count = 0;
			
	   	for(i=FractLeftBars+p; i<Bars; i++) {
				if (FrUpBuffer[i] != 0) {
				
					if ( (FrUpBuffer[i] < FrUpBuffer[p]) && (High[i] > High[p]) ) {
							DrawIndicatorTrendLine(Time[i], Time[p], OsmaBuffer[i], OsmaBuffer[p], Red, 2);
							DrawPriceTrendLine(Time[i], Time[p], High[i], High[p], Red, 2);
							DrawPriceArrow(Time[p-2], Open[p-2]+PointsOffset*Point, Red, 167);
							count++;
							if (count >= MaxFanSize)    break;
					}	else    break;
					
				}
			}
		}

		if (FrDnBuffer[p] != 0) {
			count = 0;
			
	   	for(i=FractLeftBars+p; i<Bars; i++) {
				if (FrDnBuffer[i] != 0) {
				
					if ( (FrDnBuffer[i] > FrDnBuffer[p]) && (Low[i] < Low[p]) ) {
							DrawIndicatorTrendLine(Time[i], Time[p], OsmaBuffer[i], OsmaBuffer[p], Green, 2);
							DrawPriceTrendLine(Time[i], Time[p], Low[i], Low[p], Green, 2);
							DrawPriceArrow(Time[p-2], Open[p-2]+PointsOffset*Point, Blue, 167);
							count++;
							if (count >= MaxFanSize)    break;
					}	else    break;
					
				}
			}
		}

	}



   return(0);
  }

//=======================================================================================================================================================================
void DrawPriceTrendLine(datetime x1, datetime x2, double y1, 
                        double y2, color lineColor, double style)
  {
   string label = "DivergLine# " + DoubleToStr(x1+x2, 0);
   ObjectDelete(label);
   ObjectCreate(label, OBJ_TREND, 0, x1, y1, x2, y2, 0, 0);
   ObjectSet(label, OBJPROP_RAY, 0);
   ObjectSet(label, OBJPROP_COLOR, lineColor);
   ObjectSet(label, OBJPROP_STYLE, style);
  }
   
//=======================================================================================================================================================================
void DrawIndicatorTrendLine(datetime x1, datetime x2, double y1, 
                            double y2, color lineColor, double style)
  {
   int indicatorWindow = WindowFind(IndName);
   if(indicatorWindow < 0)
       return;
   string label = "DivergLine$# " + DoubleToStr(x1+x2, 0);
   ObjectDelete(label);
   ObjectCreate(label, OBJ_TREND, indicatorWindow, x1, y1, x2, y2, 0, 0);
   ObjectSet(label, OBJPROP_RAY, 0);
   ObjectSet(label, OBJPROP_COLOR, lineColor);
   ObjectSet(label, OBJPROP_STYLE, style);
  }

//=======================================================================================================================================================================
void DrawPriceArrow(datetime x1, double y1, color Color, double style)
  {
   string label = "DivergArrow# " + DoubleToStr(x1, 0);
   ObjectDelete(label);
   ObjectCreate(label, OBJ_ARROW, 0, x1, y1);
   ObjectSet(label, OBJPROP_ARROWCODE, style);
   ObjectSet(label, OBJPROP_COLOR, Color);
  }