//+------------------------------------------------------------------+
//|                                                TickIndicator.mq4 |
//|                                              Copyright 2015, AM2 |
//|                                      http://www.forexsystems.biz |
//+------------------------------------------------------------------+
#property copyright "Copyright 2015, AM2"
#property link      "http://www.forexsystems.biz"
#property version   "1.00"
#property strict

#property indicator_separate_window
#property  indicator_buffers 1 
#property  indicator_color1  Lime

input int MAPeriod = 12;
double     IndBuf[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- indicator buffers mapping
   SetIndexStyle(0,DRAW_LINE,STYLE_SOLID,1);
   SetIndexBuffer(0,IndBuf);
//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
                const int prev_calculated,
                const datetime &time[],
                const double &open[],
                const double &high[],
                const double &low[],
                const double &close[],
                const long &tick_volume[],
                const long &volume[],
                const int &spread[])
  {
//---
   int limit;
   int counted_bars=IndicatorCounted();

   if(counted_bars>0) counted_bars--;
   limit=counted_bars;

   for(int i=limit; i>=0; i--)
     {
      IndBuf[i+1]=IndBuf[i];
     }

   IndBuf[0]=(close[0]-iMA(NULL,0,MAPeriod,0,MODE_SMA,PRICE_CLOSE,0))/Point;
//--- return value of prev_calculated for next call
   return(rates_total);
  }
//+------------------------------------------------------------------+