//+------------------------------------------------------------------+
//|   Renko_CW.mq4
//+------------------------------------------------------------------+
#property indicator_chart_window
#include <stdlib.mqh>
#property indicator_buffers 1
#property indicator_color1 SpringGreen

extern int BrickSize = 50;

int BrickLimit = 1;
double BrickPips;
int FirstTick = 1;

double Renko[];
double Bricks[];

int init()
{
   IndicatorBuffers(1);
   
   SetIndexStyle(0,DRAW_LINE,0,2);
   SetIndexBuffer(0,Renko);
   SetIndexEmptyValue(0,0.0);
   ArrayInitialize(Renko,0.0);

   ArraySetAsSeries(Bricks,true);
   ArrayResize(Bricks,BrickLimit);

   BrickPips = BrickSize*Point;
   
   return(0);
}

int deinit()
{
   return(0);
}

int start()
{
// barf

   int counted_bars=IndicatorCounted();
   if(counted_bars<0) return(-1); //---- check for possible errors
   if(counted_bars>0) counted_bars--; //---- last counted bar will be recounted
   int limit=Bars-counted_bars;
    
   for (int i=0;i<limit;i++)
   {
      if (i < 1)
      {
         if (FirstTick == 1)
         {Bricks[0] = Close[i]; FirstTick = 0;}
         else
         if (Close[i] >= Bricks[0]+BrickPips)
         {
            BrickLimit++;
            ArraySetAsSeries(Bricks,false);
            ArrayResize(Bricks,BrickLimit);
            ArraySetAsSeries(Bricks,true);
            Bricks[0] = Bricks[1]+BrickPips;
         }
         else      
         if (Close[i] <= Bricks[0]-BrickPips)
         {
            BrickLimit++;
            ArraySetAsSeries(Bricks,false);
            ArrayResize(Bricks,BrickLimit);
            ArraySetAsSeries(Bricks,true);
            Bricks[0] = Bricks[1]-BrickPips;
         }
         ArrayInitialize(Renko,0.0);
         ArrayCopy(Renko,Bricks);
      }
//      Comment(DoubleToStr(Bricks[1],4),"  ",DoubleToStr(Bricks[0],4));
   }

   return(0);
}
//+------------------------------------------------------------------+