SMMA-Crossover_Signal_v3

//+------------------------------------------------------------------+
//|                                         SMA-Crossover_Signal.mq4 |
//|         Copyright © 2005, Jason Robinson (jnrtrading)            |
//|                   http://www.jnrtading.co.uk                     |
//+------------------------------------------------------------------+
//+-------------------------------------------------------------------+
//| Allows you to enter two smoothed sma periods and it will then     |
//| show you at Which point they crossed over. It is more usful on    |
//| the shorter periods that get obscured by the bars / candlesticks  |
//| and when the zoom level is out. Also allows you then to remove    |
//| the emas from the chart. (smas are initially set at 9 and 18)     |
//+-------------------------------------------------------------------+
#property copyright "Copyright © 2005, Jason Robinson (jnrtrading)"
#property link      "http://www.jnrtrading.co.uk"
//----
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 SpringGreen
#property indicator_color2 Red
//----
double CrossUp[];
double CrossDown[];
extern int FasterSMMA=9;
extern int SlowerSMMA=18;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0, DRAW_ARROW, EMPTY);
   SetIndexArrow(0, 233);
   SetIndexBuffer(0, CrossUp);
   SetIndexStyle(1, DRAW_ARROW, EMPTY);
   SetIndexArrow(1, 234);
   SetIndexBuffer(1, CrossDown);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//---- 
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
  int start() 
  {
   int limit, i, counter;
   double fasterSMMAnow, slowerSMMAnow, fasterSMMAprevious, slowerSMMAprevious, fasterSMMAafter, slowerSMMAafter;
   double Range, AvgRange;
   int counted_bars=IndicatorCounted();
//---- check for possible errors
   if(counted_bars<0) return(-1);
//---- last counted bar will be recounted
   if(counted_bars>0) counted_bars--;
//----
   limit=Bars-counted_bars;
//----
     for(i=0; i<=limit; i++) 
     {
      counter=i;
      Range=0;
      AvgRange=0;
        for(counter=i ;counter<=i+9;counter++) 
        {
         AvgRange=AvgRange+MathAbs(High[counter]-Low[counter]);
        }
      Range=AvgRange/10;
//----
      fasterSMMAnow=iMA(NULL, 0, FasterSMMA, 0, MODE_SMMA, PRICE_CLOSE, i);
      fasterSMMAprevious=iMA(NULL, 0, FasterSMMA, 0, MODE_SMMA, PRICE_CLOSE, i+1);
      fasterSMMAafter=iMA(NULL, 0, FasterSMMA, 0, MODE_SMMA, PRICE_CLOSE, i-1);
      //
      slowerSMMAnow=iMA(NULL, 0, SlowerSMMA, 0, MODE_SMMA, PRICE_CLOSE, i);
      slowerSMMAprevious=iMA(NULL, 0, SlowerSMMA, 0, MODE_SMMA, PRICE_CLOSE, i+1);
      slowerSMMAafter=iMA(NULL, 0, SlowerSMMA, 0, MODE_SMMA, PRICE_CLOSE, i-1);
      //
        if ((fasterSMMAnow > slowerSMMAnow) && (fasterSMMAprevious < slowerSMMAprevious) && (fasterSMMAafter > slowerSMMAafter)) 
        {
         CrossUp[i]=Low[i] - Range*0.5;
        }
        else if ((fasterSMMAnow < slowerSMMAnow) && (fasterSMMAprevious > slowerSMMAprevious) && (fasterSMMAafter < slowerSMMAafter)) 
        {
            CrossDown[i]=High[i] + Range*0.5;
           }
     }
//----     
   return(0);
  }
//+------------------------------------------------------------------+