//+------------------------------------------------------------------+
//| Custom Moving Average.mq4 |
//| Copyright © 2005, MetaQuotes Software Corp. |
//| http://www.metaquotes.net/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, MetaQuotes Software Corp."
#property link "http://www.metaquotes.net/"
#property indicator_chart_window
#property indicator_buffers 1
#property indicator_color1 Red
//---- indicator parameters
extern int ExtDepth = 12;
extern int ExtDeviation = 5;
extern int ExtBackstep = 3;
extern bool alerts.On = false;
extern bool alerts.Message = true;
extern bool alerts.Sound = false;
extern bool alerts.Email = false;
//---- indicator buffers
double ExtMapBuffer[];
double ExtMapBuffer2[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
IndicatorBuffers(2);
//---- drawing settings
SetIndexStyle(0,DRAW_SECTION);
//---- indicator buffers mapping
SetIndexBuffer(0,ExtMapBuffer);
SetIndexBuffer(1,ExtMapBuffer2);
SetIndexEmptyValue(0,0.0);
//---- indicator short name
IndicatorShortName("ZigZag("+ExtDepth+","+ExtDeviation+","+ExtBackstep+")");
//---- initialization done
return(0);
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
int start()
{
int shift, back,lasthighpos,lastlowpos;
double val,res;
double curlow,curhigh,lasthigh,lastlow;
for(shift=Bars-ExtDepth; shift>=0; shift--)
{
val=Low[Lowest(NULL,0,MODE_LOW,ExtDepth,shift)];
if(val==lastlow) val=0.0;
else
{
lastlow=val;
if((Low[shift]-val)>(ExtDeviation*Point)) val=0.0;
else
{
for(back=1; back<=ExtBackstep; back++)
{
res=ExtMapBuffer[shift+back];
if((res!=0)&&(res>val)) ExtMapBuffer[shift+back]=0.0;
}
}
}
ExtMapBuffer[shift]=val;
//--- high
val=High[Highest(NULL,0,MODE_HIGH,ExtDepth,shift)];
if(val==lasthigh) val=0.0;
else
{
lasthigh=val;
if((val-High[shift])>(ExtDeviation*Point)) val=0.0;
else
{
for(back=1; back<=ExtBackstep; back++)
{
res=ExtMapBuffer2[shift+back];
if((res!=0)&&(res<val)) ExtMapBuffer2[shift+back]=0.0;
}
}
}
ExtMapBuffer2[shift]=val;
}
// final cutting
lasthigh=-1; lasthighpos=-1;
lastlow=-1; lastlowpos=-1;
for(shift=Bars-ExtDepth; shift>=0; shift--)
{
curlow=ExtMapBuffer[shift];
curhigh=ExtMapBuffer2[shift];
if((curlow==0)&&(curhigh==0)) continue;
//---
if(curhigh!=0)
{
if(lasthigh>0)
{
if(lasthigh<curhigh) ExtMapBuffer2[lasthighpos]=0;
else ExtMapBuffer2[shift]=0;
}
//---
if(lasthigh<curhigh || lasthigh<0)
{
lasthigh=curhigh;
lasthighpos=shift;
}
lastlow=-1;
}
//----
if(curlow!=0)
{
if(lastlow>0)
{
if(lastlow>curlow) ExtMapBuffer[lastlowpos]=0;
else ExtMapBuffer[shift]=0;
}
//---
if((curlow<lastlow)||(lastlow<0))
{
lastlow=curlow;
lastlowpos=shift;
}
lasthigh=-1;
}
}
for(shift=Bars-1; shift>=0; shift--)
{
if(shift>=Bars-ExtDepth) ExtMapBuffer[shift]=0.0;
else
{
res=ExtMapBuffer2[shift];
if(res!=0.0) ExtMapBuffer[shift]=res;
}
}
if (alerts.On)
{
bool foundPeak = false;
bool foundPreviousPeak = false;
bool peakIsUp = false;
int peakShift = 0;
//
//
//
//
//
for (shift=0; shift<Bars; shift++)
if (ExtMapBuffer[shift]!=0)
{
peakShift = shift;
foundPeak = true;
break;
}
if (foundPeak)
{
shift++;
for (;shift<Bars;shift++)
if (ExtMapBuffer[shift]!=0)
{
if (ExtMapBuffer[shift]<ExtMapBuffer[peakShift])
peakIsUp=true;
break;
}
}
//
//
//
//
//
if (foundPeak)
if (peakIsUp)
doAlert("ZigZag made a new upper peak at "+TimeToStr(Time[peakShift],TIME_DATE|TIME_SECONDS),Time[peakShift]);
else doAlert("ZigZag made a new lower peak at "+TimeToStr(Time[peakShift],TIME_DATE|TIME_SECONDS),Time[peakShift]);
}
}
//
//
//
//
//
void doAlert(string doWhat,datetime time)
{
static string previousAlert="nothing";
static datetime previousTime;
string message;
if (previousAlert != doWhat || previousTime != time) {
previousAlert = doWhat;
previousTime = time;
//
//
//
//
//
message = StringConcatenate(Symbol()," at ",TimeToStr(TimeLocal(),TIME_SECONDS)," ZigZag : ",doWhat);
if (alerts.Message) Alert(message);
if (alerts.Email) SendMail("ZigZag : ",message);
if (alerts.Sound) PlaySound("alert2.wav");
}
}
Sample
Analysis
Market Information Used:
Series array that contains the lowest prices of each bar
Series array that contains the highest prices of each bar
Series array that contains open time of each bar
Indicator Curves created:
Implements a curve of type DRAW_SECTION
Indicators Used:
Custom Indicators Used:
Order Management characteristics:
Other Features:
It issuies visual alerts to the screen
It sends emails
It plays sound alerts