//+------------------------------------------------------------------+
//|                                   Copyright © 2010, Ivan Kornilov|
//|                                                     FiboBars2.mq4|
//+------------------------------------------------------------------+
#property copyright "Copyright © 2009, Ivan Kornilov. All rights reserved."
#property link "excelf@gmail.com"

#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Red
#property indicator_color2 Green
#property indicator_color3 Red
#property indicator_color4 Green

extern int period=10;
extern int fiboLevel=1;

double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];
double trand[];

double prevTicTrend=0;

bool oldIsTrandDown;
double level;
#define level1 0.236
#define level2 0.382
#define level3 0.5
#define level4 0.618
#define level5 0.762

extern bool alertMode=false;

datetime barTime=0;
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int init() 
  {
   IndicatorBuffers(5);

   SetIndexBuffer(0,ExtMapBuffer1);
   SetIndexBuffer(1,ExtMapBuffer2);
   SetIndexBuffer(2,ExtMapBuffer3);
   SetIndexBuffer(3,ExtMapBuffer4);
   SetIndexBuffer(4,trand);

   SetIndexStyle(0,DRAW_HISTOGRAM,0,1);
   SetIndexStyle(1,DRAW_HISTOGRAM,0,1);
   SetIndexStyle(2,DRAW_HISTOGRAM,0,3);
   SetIndexStyle(3,DRAW_HISTOGRAM,0,3);

   SetIndexDrawBegin(0,period);
   SetIndexDrawBegin(1,period);
   SetIndexDrawBegin(2,period);
   SetIndexDrawBegin(3,period);
   SetIndexDrawBegin(4,period);


   switch(fiboLevel)
     {
      case 1:
         level=level1;
         break;
      case 2:
         level=level2;
         break;
      case 3:
         level=level3;
         break;
      case 4:
         level=level4;
         break;
      case 5:
         level=level5;
         break;
      default:
         level=level1;
         break;
     }
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int deinit()
  {
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int start()
  {
   int counted_bars=IndicatorCounted();
   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
   int limit=Bars-counted_bars;
   if(counted_bars==0) limit-=2;

   for(int i=limit; i>=0; i--) 
     {
      double maxHigh= High[iHighest(NULL,0,MODE_HIGH,period,i)];
      double minLow = Low[iLowest(NULL,0,MODE_LOW,period,i)];
      if(Open[i]>Close[i]) 
        {
         if(!(trand[i+1]<0 && (maxHigh-minLow)*level<(Close[i]-minLow))) 
           {
            trand[i]=1;
              } else {
            trand[i]=-1;
           }
           } else {
         if(!(trand[i+1]>0 && (maxHigh-minLow)*level<(maxHigh-Close[i]))) 
           {
            trand[i]=-1;
              } else {
            trand[i]=1;
           }
        }

      if(alertMode && i==0 && trand[0]!=trand[1]) 
        {
         if(barTime!=Time[0]) 
           {
            if(trand[0]==1) 
              {
               Alert("FiboBars2: "+Symbol()+" M "+Period()+": Signal: BUY");
                 } else if(trand[0]==-1){
               Alert("FiboBars2: "+Symbol()+" M "+Period()+": Signal: SELL");
              }
           }
         barTime=Time[0];

         if(prevTicTrend!=trand[0]) 
           {
            PlaySound("event.wav");
           }
         prevTicTrend=trand[0];

        }

      if(trand[i]==1) 
        {//RED BAR 
         ExtMapBuffer1[i] = High[i];
         ExtMapBuffer2[i] = Low[i];
         ExtMapBuffer3[i] = MathMax(Open[i], Close[i]);
         ExtMapBuffer4[i] = MathMin(Open[i], Close[i]);
           } else if(trand[i]==-1) {//GREEN BAR
         ExtMapBuffer1[i] = Low[i];
         ExtMapBuffer2[i] = High[i];
         ExtMapBuffer3[i] = MathMin(Open[i], Close[i]);
         ExtMapBuffer4[i] = MathMax(Open[i], Close[i]);
           } else {
         ExtMapBuffer1[i] = EMPTY_VALUE;
         ExtMapBuffer2[i] = EMPTY_VALUE;
         ExtMapBuffer3[i] = EMPTY_VALUE;
         ExtMapBuffer4[i] = EMPTY_VALUE;
        }
     }
   return(0);
  }
//+------------------------------------------------------------------+