تریلینگ‌استاپ با گام حداقلی (ضد اسپم)

void TrailWithStep(ulong ticket, double distPoints, double stepPoints)
{
   if(!PositionSelectByTicket(ticket)) return;

   long   type = PositionGetInteger(POSITION_TYPE);
   double sl   = PositionGetDouble(POSITION_SL);
   double tp   = PositionGetDouble(POSITION_TP);

   if(type == POSITION_TYPE_BUY)
   {
      double bid   = SymbolInfoDouble(_Symbol, SYMBOL_BID);
      double newSL = NormalizeDouble(bid - distPoints * _Point, _Digits);
      // On ne bouge que si le gain de SL vaut au moins stepPoints
      if(newSL - sl >= stepPoints * _Point)
         trade.PositionModify(ticket, newSL, tp);
   }
   else
   {
      double ask   = SymbolInfoDouble(_Symbol, SYMBOL_ASK);
      double newSL = NormalizeDouble(ask + distPoints * _Point, _Digits);
      if(sl == 0.0 || sl - newSL >= stepPoints * _Point)
         trade.PositionModify(ticket, newSL, tp);
   }
}