I need help for .lua format of Trade Channel Indicator.
http://codebase.mql4.com/4527
- Code: Select all
//+------------------------------------------------------------------+
//| Trade Channel |
//| http://abc-forex.ru/ |
//+------------------------------------------------------------------+
#property copyright "---"
#property link "http://abc-forex.ru/"
//----
#property indicator_chart_window
#property indicator_buffers 7
#property indicator_color1 DeepSkyBlue
#property indicator_color2 DeepSkyBlue
#property indicator_color3 Black
#property indicator_color4 Black
#property indicator_color5 Black
#property indicator_color6 Black
#property indicator_color7 Black
#property indicator_color8 Black
//---- input parameters
extern int nLeft=50;
extern int nRight=50;
extern int filter=10;
//---- buffers
double UpBuffer[];
double DnBuffer[];
double f_2[];
double f_3[];
double f_4[];
double f_5[];
double f_6[];
//----
int draw_begin1=0, draw_begin2=0, d_b3=0;
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
int init()
{
double nfUp;
IndicatorBuffers(8);
SetIndexStyle(0,DRAW_LINE,0,3);
SetIndexStyle(1,DRAW_LINE,0,3);
SetIndexStyle(2,DRAW_LINE,2);
SetIndexStyle(3,DRAW_LINE,2);
SetIndexStyle(4,DRAW_LINE,2);
SetIndexStyle(5,DRAW_LINE,2);
SetIndexStyle(6,DRAW_LINE,2);
SetIndexBuffer(0,UpBuffer);
SetIndexBuffer(1,DnBuffer);
SetIndexBuffer(2,f_2);
SetIndexBuffer(3,f_3);
SetIndexBuffer(4,f_4);
SetIndexBuffer(5,f_5);
SetIndexBuffer(6,f_6);
//----
string short_name;
short_name="rvmFractalsLevel("+nLeft+","+nRight+","+filter+")";
IndicatorShortName(short_name);
SetIndexLabel(0,"Up Level ("+nLeft+","+nRight+","+filter+")");
SetIndexLabel(1,"Down Level ("+nLeft+","+nRight+","+filter+")");
SetIndexLabel(2,"f_2 ("+nLeft+","+nRight+","+filter+")");
SetIndexLabel(3,"f_3 ("+nLeft+","+nRight+","+filter+")");
SetIndexLabel(4,"f_4 ("+nLeft+","+nRight+","+filter+")");
SetIndexLabel(5,"f_5 ("+nLeft+","+nRight+","+filter+")");
SetIndexLabel(6,"f_6 ("+nLeft+","+nRight+","+filter+")");
//----
int n,k,i,Range=nLeft+nRight+1;
for(n=Bars-1-nLeft;n>=nRight;n--)
{
if(draw_begin1==0)
{
if(High[n]>=High[Highest(NULL,0,MODE_HIGH,Range,n-nRight)])
{
int fRange=nvnLeft(n,nLeft)+nvnRight(n,nRight)+1;
if(High[n]>=High[Highest(NULL,0,MODE_HIGH,fRange,n-nvnRight(n,nRight))])
{
draw_begin1=Bars-n;
for(i=Bars-1;i>draw_begin1;i--)
{
UpBuffer[i]=High[Bars-draw_begin1];
}
}
}
}
if(draw_begin2==0)
{
if(Low[n]<=Low[Lowest(NULL,0,MODE_LOW,Range,n-nRight)])
{
fRange=nvnLeft(n,nLeft)+nvnRight(n,nRight)+1;
if(Low[n]<=Low[Lowest(NULL,0,MODE_HIGH,fRange,n-nvnRight(n,nRight))])
{
draw_begin2=Bars-n;
for(i=Bars-1;i>draw_begin2;i--)
{
DnBuffer[i]=Low[Bars-draw_begin2];
}
}
}
}
if(draw_begin1>0&&draw_begin2>0) break;
}
//----
if(draw_begin1>draw_begin2)
{
d_b3=draw_begin1;
}
else
{
d_b3=draw_begin2;
}
SetIndexDrawBegin(0,draw_begin1);
SetIndexDrawBegin(1,draw_begin2);
SetIndexDrawBegin(2,d_b3);
SetIndexDrawBegin(3,d_b3);
SetIndexDrawBegin(4,d_b3);
SetIndexDrawBegin(5,d_b3);
SetIndexDrawBegin(6,d_b3);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
double UpStage=0.0,DnStage=0.0;
int i,j,fRange,Range=nLeft+nRight+1;
int counted_bars=IndicatorCounted();
//----
for(i=Bars-1-counted_bars-nLeft;i>=nRight;i--)
{
if(High[i]>=High[Highest(NULL,0,MODE_HIGH,Range,i-nRight)])
{
fRange=nvnLeft(i,nLeft)+nvnRight(i,nRight)+1;
if(High[i]>=High[Highest(NULL,0,MODE_HIGH,fRange,i-nvnRight(i,nRight))])
{
UpStage=High[i];
}
else
{
if(High[i]<=UpBuffer[i+1])
{
UpStage=UpBuffer[i+1];
}
else
{
UpStage=nfUp(i);
}
}
}
else
{
if(High[i]<=UpBuffer[i+1])
{
UpStage=UpBuffer[i+1];
}
else
{
UpStage=nfUp(i);
}
}
if(Low[i]<=Low[Lowest(NULL,0,MODE_LOW,Range,i-nRight)])
{
fRange=nvnLeft(i,nLeft)+nvnRight(i,nRight)+1;
if(Low[i]<=Low[Lowest(NULL,0,MODE_HIGH,fRange,i-nvnRight(i,nRight))])
{
DnStage=Low[i];
}
else
{
if(Low[i]>=DnBuffer[i+1])
{
DnStage=DnBuffer[i+1];
}
else
{
DnStage=nfDn(i);
}
}
}
else
{
if(Low[i]>=DnBuffer[i+1])
{
DnStage=DnBuffer[i+1];
}
else
{
DnStage=nfDn(i);
}
}
UpBuffer[i]=UpStage;
DnBuffer[i]=DnStage;
//----
f_2[i]=NormalizeDouble(DnBuffer[i]+(UpBuffer[i]-DnBuffer[i])/6,4);
f_3[i]=NormalizeDouble(DnBuffer[i]+(UpBuffer[i]-DnBuffer[i])/3,4);
f_4[i]=NormalizeDouble(DnBuffer[i]+(UpBuffer[i]-DnBuffer[i])/2,4);
f_5[i]=NormalizeDouble(DnBuffer[i]+(UpBuffer[i]-DnBuffer[i])*2/3,4);
f_6[i]=NormalizeDouble(DnBuffer[i]+(UpBuffer[i]-DnBuffer[i])*5/6,4);
}
for(i=nRight-1;i>=0;i--)
{
if(High[i]<=UpBuffer[i+1])
{
UpStage=UpBuffer[i+1];
}
else
{
UpStage=nfUp(i);
}
if(Low[i]>=DnBuffer[i+1])
{
DnStage=DnBuffer[i+1];
}
else
{
DnStage=nfDn(i);
}
UpBuffer[i]=UpStage;
DnBuffer[i]=DnStage;
//----
f_2[i] =NormalizeDouble(DnBuffer[i]+(UpBuffer[i]-DnBuffer[i])/6,4);
f_3[i] =NormalizeDouble(DnBuffer[i]+(UpBuffer[i]-DnBuffer[i])/3,4);
f_4[i] =NormalizeDouble(DnBuffer[i]+(UpBuffer[i]-DnBuffer[i])/2,4);
f_5[i] =NormalizeDouble(DnBuffer[i]+(UpBuffer[i]-DnBuffer[i])*2/3,4);
f_6[i] =NormalizeDouble(DnBuffer[i]+(UpBuffer[i]-DnBuffer[i])*5/6,4);
}
//---- ïîñòðîåíèå âååðà Ôèáîíà÷÷è
double LastUp, LastDn, st_h, st_l, st_3, y1, y2, y3;
int tmp, x1=0, x2=0, x3=0, cb, dn_x, up_x;
string fibo="Fibo 1", fibo2="Fibo 2";
LastDn=DnBuffer[0];
for(cb=1;cb<=Bars-1;cb++)
{
if(tmp!=1 && LastDn>DnBuffer[cb])
{
tmp=1;
continue;
}
if(tmp==1 && DnBuffer[cb]>DnBuffer[cb-1])
{
tmp=0;
dn_x=cb-1;
break;
}
}
LastUp=UpBuffer[0];
for(cb=1;cb<=Bars-1;cb++)
{
if(tmp!=1 && LastUp<UpBuffer[cb])
{
tmp=1;
continue;
}
if(tmp==1 && UpBuffer[cb]<UpBuffer[cb-1])
{
tmp=0;
up_x=cb-1;
break;
}
}
st_h=High[Highest(NULL,0,MODE_HIGH,MathMax(dn_x,up_x),0)];
st_l=Low[Lowest(NULL,0,MODE_LOW,MathMax(dn_x,up_x),0)];
for(cb=MathMax(dn_x,up_x)-1;cb>=0;cb--)
{
if(High[cb]==st_h || Low[cb]==st_l)
{
if(High[cb]==st_h && (x1==0 || x2==0) )
{
if(x1==0)
{
x1=cb;
y1=High[x1];
continue;
}
else
{
x2=cb;
y2=High[x2];
break;
}
}
else
{
if(x1==0)
{
x1=cb;
y1=Low[x1];
continue;
}
else
{
x2=cb;
y2=Low[x2];
break;
}
}
}
}
if(ObjectFind(fibo)!=-1 )
{
ObjectSet(fibo,OBJPROP_TIME1,Time[x1]);
ObjectSet(fibo,OBJPROP_PRICE1,y1);
ObjectSet(fibo,OBJPROP_TIME2,Time[x2]);
ObjectSet(fibo,OBJPROP_PRICE2,y2);
}
else
{
ObjectCreate(fibo,OBJ_FIBOFAN,0,Time[x1],y1,Time[x2],y2);
ObjectSet(fibo,OBJPROP_COLOR,DodgerBlue);
ObjectSet(fibo,OBJPROP_STYLE,STYLE_DOT);
}
if(y2>y1)
{
st_3=Low[Lowest(NULL,0,MODE_LOW,x2,0)];
}
else
{
st_3=High[Highest(NULL,0,MODE_HIGH,x2,0)];
}
for(cb=0;cb<x2;cb++)
{
if(y2>y1 && Low[cb]==st_3)
{
x3=cb;
y3=Low[cb];
break;
}
else
{
if(y2<y1 && High[cb]==st_3)
{
x3=cb;
y3=High[cb];
break;
}
}
}
if(ObjectFind(fibo2)!=-1 )
{
ObjectSet(fibo2,OBJPROP_TIME1,Time[x2]);
ObjectSet(fibo2,OBJPROP_PRICE1,y2);
ObjectSet(fibo2,OBJPROP_TIME2,Time[x3]);
ObjectSet(fibo2,OBJPROP_PRICE2,y3);
}
else
{
ObjectCreate(fibo2,OBJ_FIBOFAN,0,Time[x2],y2,Time[x3],y3);
ObjectSet(fibo2,OBJPROP_COLOR,Red);
ObjectSet(fibo2,OBJPROP_STYLE,STYLE_DOT);
}
//----
return(0);
}
//+------------------------------------------------------------------+
double nfUp(int i)
{
int l,flag=0;
double Price=0.0;
//----------
for(l=i+1;l<Bars-draw_begin1-1;l++)
{
if(filter>0)
{
if(Close[i]<=UpBuffer[l]+(UpBuffer[l]-DnBuffer[l])*filter/100)
{
Price=UpBuffer[l];
flag=1;
}
}
else
{
if(High[i]<=UpBuffer[l])
{
Price=UpBuffer[l];
flag=1;
}
}
if(Price>0) break;
}
if(flag==0) Price=High[i];
//----
return(Price);
}
//+------------------------------------------------------------------+
double nfDn(int i)
{
int l,flag=0;
double Price=0.0;
//----------
for(l=i+1;l<Bars-draw_begin2-1;l++)
{
if(filter>0)
{
if(Close[i]>=DnBuffer[l]-(UpBuffer[l]-DnBuffer[l])*filter/100)
{
Price=DnBuffer[l];
flag=1;
}
}
else
{
if(Low[i]>=DnBuffer[l])
{
Price=DnBuffer[l];
flag=1;
}
}
if(Price>0) break;
}
if(flag==0) Price=Low[i];
//----
return(Price);
}
//+------------------------------------------------------------------+
int nvnLeft(int i,int n)
{
int k=0,l;
for(l=i+1;l<=Bars-1;l++)
{
if(High[l]<High[l+1]&&Low[l]>Low[l+1]) continue;
k++;
if(k==n)
{
k=l-i;
break;
}
}
//----
return(k);
}
//+------------------------------------------------------------------+
int nvnRight(int i,int n)
{
int k=0,l;
for(l=i-1;l>=0;l--)
{
if(High[l]<High[l+1]&&Low[l]>Low[l+1]) continue;
k++;
if(k==n)
{
k=i-l;
break;
}
}
//----
return(k);
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
int deinit()
{
//----
string fibo="Fibo 1", fibo2="Fibo 2";
ObjectDelete(fibo);
ObjectDelete(fibo2);
//----
return(0);
}
//+------------------------------------------------------------
