In & Out Alert

//+------------------------------------------------------------------+
//|                                               In & Out Alert.mq4 |
//|                                                 Copyright © 2008 |
//|                                                                  |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2008"
#property link      ""



#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Blue
#property indicator_color2 Red

extern bool Show_Alert = true;
extern bool Display_Out = true;
extern bool Display_In = true;

//---- buffers
double val1[];
double val2[];


//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {

//---- indicator line
   IndicatorBuffers(3);
   SetIndexStyle(0,DRAW_HISTOGRAM,0,1);
   SetIndexStyle(1,DRAW_HISTOGRAM,0,1);
   SetIndexBuffer(0,val1);
   SetIndexBuffer(1,val2);

//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
{
int counted_bars=IndicatorCounted();
//----


double Range, AvgRange;
int counter, setalert;
static datetime prevtime = 0;
int shift;
int shift1;
int shift2;
int shift3;
string pattern, period;
int setPattern = 0;
int alert = 0;
double O, O1, C, C1, L, L1, H, H1;

if(prevtime == Time[0]) {
return(0);
}
prevtime = Time[0];

switch (Period()) {
case 1:
period = "M1";
break;
case 5:
period = "M5";
break;
case 15:
period = "M15";
break;
case 30:
period = "M30";
break; 
case 60:
period = "H1";
break;
case 240:
period = "H4";
break;
case 1440:
period = "D1";
break;
case 10080:
period = "W1";
break;
case 43200:
period = "MN";
break;
}

for (int j = 0; j < Bars; j++) { 

}

for (shift = 0; shift < Bars; shift++) {

setalert = 0;
counter=shift;
Range=0;
AvgRange=0;
for (counter=shift ;counter<=shift+9;counter++) {
AvgRange=AvgRange+MathAbs(High[counter]-Low[counter]);
}
Range=AvgRange/9;
shift1 = shift ;
shift2 = shift + 1;

O = Open[shift1];
O1 = Open[shift2];
H = High[shift1];
H1 = High[shift2];
L = Low[shift1];
L1 = Low[shift2];
C = Close[shift1];
C1 = Close[shift2];




// Check for Out pattern
if ((H>H1)&&(L<L1)) {
if (Display_Out == true) 
{
val1[shift]=Low[shift]; val2[shift]=High[shift];
}


if (setalert == 0 && Show_Alert == true) {
pattern = "Out";
setalert = 1;
}
}

// Check for In pattern
if ((H<H1)&&(L>L1)) {
if (Display_In == true) { 

{
val1[shift]=High[shift]; val2[shift]=Low[shift];

}
if (setalert == 0 && Show_Alert == true) {
pattern="In";
setalert = 1;
}
}

}
} // End of for loop
//----
return(0);
}

//+------------------------------------------------------------------+