LeManStop

//+------------------------------------------------------------------+
//|                                                    LeManStop.mq4 |
//|                                         Copyright © 2009, LeMan. |
//|                                                 b-market@mail.ru |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2009, LeMan."
#property link "b-market@mail.ru"
//----
#property indicator_chart_window
#property  indicator_buffers 1
#property indicator_color1 Red
#property indicator_width1 1
#property indicator_style1 2
//----
extern int per = 24;
extern int coef = 4;
extern int fastEMA = 9;
extern int slowEMA = 18;
//----
double ExtBuffer[];
//+------------------------------------------------------------------+
int init() {
//----
   SetIndexBuffer(0,ExtBuffer);
   SetIndexStyle(0,DRAW_LINE);
//----
   return(0);
}
//+------------------------------------------------------------------+
int start() {
//----
   double Stop = 0;
   int counted_bars = IndicatorCounted();
   int limit = Bars-per-3;
//----   
   for (int shift = limit; shift >= 0; shift--) {
      double EMA0 = iMA(Symbol(),0,fastEMA,0,MODE_EMA,0,shift)-iMA(Symbol(),0,slowEMA,0,MODE_EMA,0,shift);
      double EMA1 = iMA(Symbol(),0,fastEMA,0,MODE_EMA,0,shift+1)-iMA(Symbol(),0,slowEMA,0,MODE_EMA,0,shift+1);
      double PreStop = ExtBuffer[shift+1];
      double x = 0;
      double Counter = 0;
      if (EMA0 > 0) {
         for (int value1 = 0; value1 <= per; value1++) {
            x = Open[shift+value1]-Low[shift+value1]+x;
            Counter++;
         }
         if (Counter != 0) {
            Stop = Open[shift]-(coef*(x/Counter));
         } else {
            Stop = Open[shift]-(coef*x);
         }
         if ((Stop < PreStop) && (EMA1 > 0)) {
            Stop = PreStop;
         }
      }
      if (EMA0 < 0) {
         for (value1 = 0; value1 <= per; value1++) {
            x = High[shift+value1]-Open[shift+value1]+x;
            Counter++;
         }
         if (Counter != 0) {
            Stop = Open[shift+1]+(coef*(x/Counter));
         } else {
            Stop = Open[shift+1]+(coef*x);
         }
         if ((Stop > PreStop) && (EMA1 < 0)) {
            Stop = PreStop;
         }
      }
      PreStop = Stop;
      ExtBuffer[shift] = Stop;
   }
//----
   return(0);
}
//+------------------------------------------------------------------+