//+------------------------------------------------------------------+
//|                                        JC - Line Break Alert.mq4 |
//|                                         Juan Carlos Christensen. |
//|                                     http://www.eumefinancial.com |
//+------------------------------------------------------------------+
#property copyright "Juan Carlos Christensen."
#property link      "http://www.eumefinancial.com"

#property indicator_chart_window
#property indicator_buffers 1
#property indicator_color1 Blue
#property indicator_width1 2

//---- input parameters
extern double Price1 = 2.0000;
extern double Price2 = 2.0000;
extern string Modes = "0- Line; 1- Channel";
extern int Mode = 1;
extern bool UseSoundAlert = True;
extern string SoundFile = "alert.wav";
extern int PlaySoundNTimes = 1;
extern bool UseAlertPopUp = True;
extern bool UseTickMode = True;
extern bool UseSendMail = False;
extern bool DeactivateOnAlert = True;
extern color price1_color = Blue;
extern color price2_color = Red;

bool DidBreakout = False;
double LastPrice;

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
  //---- indicators
   LastPrice=Bid;  
   
   CreateLine("price1",price1_color,Price1);
   if(Mode==1) CreateLine("price2",price2_color,Price2);
 
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   ObjectDelete("price1");
   ObjectDelete("price2");
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
//----
   double aPrice1=ObjectGet("price1",OBJPROP_PRICE1);
   if(GetLastError()==4202) CreateLine("price1",price1_color,Price1);
   if(aPrice1!=0 && aPrice1 != Price1) {Price1=aPrice1; Print("Price1 Changed:",Price1);}
   
   if(Mode==1)
   {
     double aPrice2=ObjectGet("price2",OBJPROP_PRICE1);
     if(GetLastError()==4202) CreateLine("price2",price2_color,Price2);
     if(aPrice2!=0  && aPrice2 != Price2) {Price2=aPrice2; Print("Price2 Changed:",Price2);}
   }
   
   if(Price1<Price2 && Mode==1)
   {
     aPrice1=Price1;
     Price1=Price2;
     Price2=aPrice1;
     ObjectSet("price1",OBJPROP_PRICE1,Price1);
     ObjectSet("price2",OBJPROP_PRICE1,Price2);
   }
   
   switch(Mode)
   {
      case 0:
         CrossingPrice1Only();
         break;
      case 1:
         ChannelBreakOut();
         break;
      default:
         CrossingPrice1Only();
   }
   

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

void CrossingPrice1Only()
{
   double CurrentPrice=Bid;
   
   if(((LastPrice < Price1) && (CurrentPrice >= Price1)) || ((LastPrice > Price1) && (CurrentPrice <= Price1)) && !DidBreakout) 
   {
      if(DeactivateOnAlert) DidBreakout = True;
      
      if(UseSoundAlert)
         for(int x=0;x<=PlaySoundNTimes;x++)
            PlaySound(SoundFile);
      
      if(UseAlertPopUp)
         Alert(Symbol()," ",Period(),"Price Crossing Alert Line at ", Price1);   //Symbol()," ",Period()," @ ",Bid
      
      if(UseSendMail)
         SendMail("Price Crossing Alert Line at " + Price1 + "!", "This is an email from the JC - Line Break Alert indicator. Price is crossing your alert line at " + Price1 + "!");
   }
}

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

void ChannelBreakOut()
{
   double CurrentPrice=Bid;
   
   
   if((LastPrice < Price1) && (CurrentPrice >= Price1) && !DidBreakout) 
   {
      if(DeactivateOnAlert) DidBreakout = True;

      
      if(UseSoundAlert)
      for(int x=0;x<=PlaySoundNTimes;x++) PlaySound(SoundFile);
      
      if(UseAlertPopUp)
         Alert(Symbol()," ",Period(),"Price Breaking Up at ", Price1);
      
      if(UseSendMail)
         SendMail("Channel Breaking Up at " + Price1 + "!", "This is an email from the JC - Line Break Alert indicator. Price broke up your channel alert line at " + Price1 + "!");
   }
   
   if((LastPrice > Price2) && (CurrentPrice <= Price2) && !DidBreakout)
   {
      if(DeactivateOnAlert) DidBreakout = True;
      
      if(UseSoundAlert)
         for(x=0;x<=PlaySoundNTimes;x++)
            PlaySound(SoundFile);
      
      if(UseAlertPopUp)
         Alert(Symbol()," ",Period(),"Price Breaking Down at ", Price2);
      
      if(UseSendMail)
         SendMail("Channel Breaking Down at " + Price2 + "!", "This is an email from the JC - Line Break Alert indicator. Price broke down your channel alert line at " + Price2 + "!");
   }
}

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

void CreateLine(string aName, color aColor, double aPrice)
{
   ObjectCreate(aName, OBJ_HLINE, 0, Time[0],aPrice); 
   ObjectSet(aName, OBJPROP_COLOR, aColor);
   ObjectSet(aName, OBJPROP_STYLE, STYLE_DASH);
}