3MA_Cross_w_Alert_v2GS2

//+--------------------------------------------------------------------------+
//| 3 MA Cross w_Alert v2.mq4                                                |
//| Copyright © 2005, Jason Robinson (jnrtrading)                            |
//| http://www.jnrtading.co.uk                                               |
//| 3 ma conversion and Alert , David Honeywell , transport.david@gmail.com  |
//| http://finance.groups.yahoo.com/group/MetaTrader_Experts_and_Indicators/ |
//+--------------------------------------------------------------------------+

/*
  +-------------------------------------------------------------------------------+
  | Allows you to enter 3 ma periods and it will then show you and alert you at   |
  | which point the 2 faster ma's "OPEN" are both above or below the Slowest ma . |
  +-------------------------------------------------------------------------------+
*/   
//  mod. 2008fxtsd eachMAShift taken off; 1GeneralShift 4 all MAs &Sigs; signals after bar close only// ki
//  3MA_Cross_w_Alert_v2GS2 displacement shift for lines and signals; actual cross MAshift = 0!



#property copyright "Copyright © 2005, Jason Robinson (jnrtrading)"
#property link      "http://www.jnrtrading.co.uk"

#property indicator_chart_window
#property indicator_buffers 5
#property indicator_color1 Aquamarine
#property indicator_color2 Magenta
#property indicator_color3 RoyalBlue
#property indicator_color4 Red
#property indicator_color5 Yellow

#property indicator_width1 1
#property indicator_width2 1
#property indicator_width3 1
#property indicator_width4 1
#property indicator_width5 1

extern int FastMA       =    5;
extern int FastMAMode   =    1; // 0 = sma, 1 = ema, 2 = smma, 3 = lwma
//extern int FasterShift =   0;
extern int MediumMA      =   13;
extern int MediumMAMode  =   1; // 0 = sma, 1 = ema, 2 = smma, 3 = lwma
//extern int MediumShift =    -3;
extern int SlowMA        =   21;
extern int  SlowMAMode   =   1; // 0 = sma, 1 = ema, 2 = smma, 3 = lwma
//extern int SlowerShift =   -1;
extern int FastMADisplacement   =  0;  // 4 display only // calculated shift = 0! 
extern int MediumMADisplacement =  0;
extern int SlowMADisplacement   =  0;
//extern int  GeneralShift =   0;
extern int  SignalDisplacement   =  0;
extern bool MADisplacementON        =  true;
extern bool SignalDisplacementON    =  true;
extern string   note_Displacement   = "calculated MAshift = 0!";

extern bool Drawlines           =  true;
extern bool SoundAlertON        =  true;
extern string   note_MA_Mode    = "SMA0 EMA1 SMMA2 LWMA3";

double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];

double CrossUp[];
double CrossDown[];
double prevtime;
double Range, AvgRange;
double fastMAnow, fastMAprevious, fastMAafter;
double mediumMAnow, mediumMAprevious, mediumMAafter;
double slowMAnow, slowMAprevious, slowMAafter;
double alertTag;
double control=2147483647;


//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0, DRAW_ARROW);
   SetIndexArrow(0, 233);//221
   SetIndexBuffer(0, CrossUp);
   SetIndexStyle(1, DRAW_ARROW);
   SetIndexArrow(1, 234);//222
   SetIndexBuffer(1, CrossDown);

if (SignalDisplacementON)
   {
   SetIndexShift(0,SignalDisplacement);   
   SetIndexShift(1,SignalDisplacement);   
   }
 else 
   {
   SetIndexShift(0,0);   
   SetIndexShift(1,0);   
   }
 
   //---- indicators
  
   SetIndexStyle(4,DRAW_LINE);
   SetIndexBuffer(4,ExtMapBuffer1);

   SetIndexStyle(3,DRAW_LINE);
   SetIndexBuffer(3,ExtMapBuffer2);

   SetIndexStyle(2,DRAW_LINE);
   SetIndexBuffer(2,ExtMapBuffer3);

if (MADisplacementON)
   {
   SetIndexShift(4,FastMADisplacement);   
   SetIndexShift(3,MediumMADisplacement);
   SetIndexShift(2,SlowMADisplacement);
   }
 else 
   {
   SetIndexShift(4,0);   
   SetIndexShift(3,0);   
   SetIndexShift(2,0);   
   }


   SetIndexLabel(0,"3MA("+FastMA+","+MediumMA+","+SlowMA+")xUp");      
   SetIndexLabel(1,"3MA("+FastMA+","+MediumMA+","+SlowMA+")xDn");      
   SetIndexLabel(2,"3MAxFast("+FastMA+","+MediumMA+","+SlowMA+")");      
   SetIndexLabel(3,"3MAxMid("+FastMA+","+MediumMA+","+SlowMA+")");      
   SetIndexLabel(4,"3MAxSlow("+FastMA+","+MediumMA+","+SlowMA+")");      


//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//---- 

//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
 {
   
   int limit, i, counter;
   
   int counted_bars=IndicatorCounted();
   //---- check for possible errors
   if(counted_bars<0) return(-1);
   //---- last counted bar will be recounted
   if(counted_bars>0) counted_bars--;
   
   limit=Bars-counted_bars;
   
   for(i = 0; i <= limit; i++)
    {
    
      counter=i;
      Range=0;
      AvgRange=0;

      for (counter=i ;counter<=i+9;counter++)
       {
      AvgRange=AvgRange+MathAbs(High[counter]-Low[counter]);
        }
      Range=AvgRange/10;
       
      fastMAnow      = iMA(NULL, 0, FastMA, 0, FastMAMode, PRICE_CLOSE, i+1);
      fastMAprevious = iMA(NULL, 0, FastMA, 0, FastMAMode, PRICE_CLOSE, i+2);
      fastMAafter    = iMA(NULL, 0, FastMA, 0, FastMAMode, PRICE_OPEN,  i);
      
      mediumMAnow      = iMA(NULL, 0, MediumMA, 0, MediumMAMode, PRICE_CLOSE, i+1);
      mediumMAprevious = iMA(NULL, 0, MediumMA, 0, MediumMAMode, PRICE_CLOSE, i+2);
      mediumMAafter    = iMA(NULL, 0, MediumMA, 0, MediumMAMode, PRICE_OPEN,  i);
      
      slowMAnow      = iMA(NULL, 0, SlowMA, 0, SlowMAMode, PRICE_CLOSE, i+1);
      slowMAprevious = iMA(NULL, 0, SlowMA, 0, SlowMAMode, PRICE_CLOSE, i+2);
      slowMAafter    = iMA(NULL, 0, SlowMA, 0, SlowMAMode, PRICE_OPEN,  i);
 
      if ((fastMAnow      > slowMAnow       &&
           fastMAprevious <= slowMAprevious  &&
           fastMAafter    > fastMAprevious     &&   
           mediumMAnow    > slowMAnow     )            // fast x slow up; med>slow            
           ||
          (fastMAnow        > slowMAnow      &&
           mediumMAnow      > slowMAnow       &&
           mediumMAprevious <= slowMAprevious  &&
           mediumMAafter    > mediumMAprevious   ))        //    med x sl up; fast >slow   
           {
          CrossUp[i] = Low[i] - Range*0.5;
           }
       
 
      if ((fastMAnow      < slowMAnow       &&
           fastMAprevious >= slowMAprevious  &&
           fastMAafter    < fastMAprevious    &&
           mediumMAnow    < slowMAnow      )        // fast x slow dn; mid<slow
           ||
          (fastMAnow        < slowMAnow       &&
           mediumMAnow      < slowMAnow        &&
           mediumMAprevious >= slowMAprevious  &&
           mediumMAafter    < mediumMAprevious    ))        // mid x slow dn; fast<slow
           {
          CrossDown[i] = High[i] + Range*0.5;
           }
      
    
   
      if (SoundAlertON==true && i==1 && CrossUp[i] > CrossDown[i] && alertTag!=Time[0])
        {
       Alert("3MACross2GS going Down on ",Symbol()," M",Period(),"  @ ",Bid);
        alertTag = Time[0];
        }
        if (SoundAlertON==true && i==1 && CrossUp[i] < CrossDown[i] && alertTag!=Time[0])
        {
       Alert("3MACross2GS going Up on ",Symbol()," M",Period(),"  @ ",Bid);
        alertTag = Time[0];
        } 
   
   //Comment("  CrossUp[0]  ",CrossUp[0]," ,  CrossDown[0]  ",CrossDown[0]," ,  prevtime  ",prevtime);
   //Comment("");
 
      if (Drawlines)
        {
         ExtMapBuffer1[i]= iMA(NULL,0,FastMA,  0, FastMAMode,  PRICE_CLOSE,i);

         ExtMapBuffer2[i]= iMA(NULL,0,MediumMA,0, MediumMAMode,PRICE_CLOSE,i);

         ExtMapBuffer3[i]= iMA(NULL,0,SlowMA,  0, SlowMAMode,  PRICE_CLOSE,i);
        }
 
 
     }
   return(0);
 }