TA BHAI AFL for Amibroker (AFL)

_SECTION_BEGIN("Name");
GfxSetOverlayMode(1);
GfxSelectFont("Tahoma", Status("pxheight")/8 );
GfxSetTextAlign( 6 );// center alignment
GfxSetTextColor( ColorHSB( 42, 42, 42 ) );
GfxSetBkMode(0); // transparent
GfxTextOut( "Amibrokerbd.com", Status("pxwidth")/2, Status("pxheight")/12 );
GfxSelectFont("Tahoma", Status("pxheight")/18 );
GfxTextOut( "Technical Analyst", Status("pxwidth")/2, Status("pxheight")/4 );

GfxSelectFont("Tahoma", Status("pxheight")/18 );
GfxSelectFont("Tahoma", Status("pxheight")/36 );
GfxTextOut( "Towfick Kamal TA Bhai", Status("pxwidth")/2, Status("pxheight")/3 );
_SECTION_END();

_SECTION_BEGIN("NMA Swing Explorer");
SetBarsRequired(200,0);

GraphXSpace = 5;
SetChartOptions(0,chartShowArrows|chartShowDates);
k =  Optimize("K",Param("K",2,0.25,5,0.25),0.25,5,0.25);
Per= Optimize("atr",Param("atr",20,3,20,1),3,20,1);
HACLOSE=(O+H+L+C)/4;
HaOpen = AMA( Ref( HaClose,  -1 ),  0.5 );
HaHigh = Max( H,  Max( HaClose,  HaOpen ) );
HaLow = Min( L,  Min( HaClose,  HaOpen ) );
if( ParamToggle("Plot Heikin-Ashi", "No,Yes", 1 ) )
   PlotOHLC( HaOpen, HaHigh, HaLow, HaClose, "Heikin Ashi " + Name(), colorBlack, styleCandle );
else
 Plot( C, "Regular candles " + Name(), colorBlack, styleCandle );
j=Haclose;

//=======================================================================================================================
//=========================Indicator==============================================================================================
f=ATR(15);

rfsctor = WMA(H-L, Per);

revers = k * rfsctor;

Trend = 1;  
NW[0] = 0;  


for(i = 1; i < BarCount; i++)
{
 if(Trend[i-1] == 1)                
 {
  if(j[i] < NW[i-1])                 
  {
   Trend[i] = -1;                   
   NW[i] = j[i] + Revers[i];        
  }
  else                              
  {
   Trend[i] = 1;
   if((j[i] - Revers[i]) > NW[i-1])
   {
    NW[i] = j[i] - Revers[i]; 
   }
   else
   {
    NW[i] = NW[i-1];
   }
  } 
 }
 if(Trend[i-1] == -1)               
 {
  if(j[i] > NW[i-1])                
  {
   Trend[i] = 1;                    
   NW[i] = j[i] - Revers[i];        
  }
  else                              
  {
   Trend[i] = -1;
   if((j[i] + Revers[i]) < NW[i-1]) 
   {
    NW[i] = j[i] + Revers[i]; 
   }
   else
   {
    NW[i] = NW[i-1];
   }
  }
 }
}

//===============system================

Plot(NW, "", IIf(Trend == 1, 27, 4), 4);
Buy=Cover=Cross(j,nw);
Sell=Short=Cross(nw,j);
SellPrice=ValueWhen(Sell,C,1);
BuyPrice=ValueWhen(Buy,C,1);
Long=Flip(Buy,Sell);
Shrt=Flip(Sell,Buy );
NMAB= NW<HACLOSE;
NMAS= NW>HACLOSE;

NMA_status= WriteIf(NMAB, "BUY MODE", WriteIf(NMAS, "SELL MODE", "NEUTRAL"));
NMAS_Col=IIf(NMAB, colorGreen, IIf(NMAS, colorRed, colorLightGrey));
Filter=1;
AddColumn( NW[BarCount-1], "SAR", 1.2 );
AddColumn( HACLOSE, "HA Close", 1.2 );
AddColumn( C, "Close", 1.2 );
AddTextColumn(NMA_status, "MODE", 1, colorWhite, NMAS_Col);
_SECTION_END();
//=================TITLE================================================================================================
_SECTION_BEGIN("Title");
if( Status("action") == actionIndicator ) 
(
Title = EncodeColor(colorWhite)+ "NICK MA Swing System" + " - " +  Name() + " - " + EncodeColor(colorRed)+ Interval(2) + EncodeColor(colorWhite) +
 "  - " + Date() +" - "+"\n" +EncodeColor(colorRed) +"Op-"+O+"  "+"Hi-"+H+"  "+"Lo-"+L+"  "+
"Cl-"+C+"  "+ "Vol= "+ WriteVal(V)+"\n"+ 
EncodeColor(colorLime)+
WriteIf (Buy , " GO LONG / Reverse Signal at "+C+"  ","")+
WriteIf (Sell , " EXIT LONG / Reverse Signal at "+C+"  ","")+"\n"+EncodeColor(colorWhite)+
WriteIf(Sell , "Total Profit/Loss for the Last Trade Rs."+(C-BuyPrice)+"","")+
WriteIf(Buy  , "Total Profit/Loss for the Last trade Rs."+(SellPrice-C)+"","")+
WriteIf(Long AND NOT Buy, "Trade : Long - Entry price Rs."+(BuyPrice),"")+
WriteIf(shrt AND NOT Sell, "Trade : Short - Entry price Rs."+(SellPrice),"")+"\n"+ 
WriteIf(Long AND NOT Buy, "Current Profit/Loss Rs."+(C-BuyPrice)+"","")+
WriteIf(shrt AND NOT Sell, "Current Profit/Loss Rs."+(SellPrice-C)+"",""));
PlotShapes(IIf(Buy, shapeSquare, shapeNone),colorGreen, 0, L, Offset=-40);
PlotShapes(IIf(Buy, shapeSquare, shapeNone),colorLime, 0,L, Offset=-50);                      
PlotShapes(IIf(Buy, shapeUpArrow, shapeNone),colorWhite, 0,L, Offset=-45); 
PlotShapes(IIf(Sell, shapeSquare, shapeNone),colorRed, 0, H, Offset=40);
PlotShapes(IIf(Sell, shapeSquare, shapeNone),colorOrange, 0,H, Offset=50);                      
PlotShapes(IIf(Sell, shapeDownArrow, shapeNone),colorWhite, 0,H, Offset=-45);
_SECTION_END();

_SECTION_BEGIN("Percent Bands");
P = ParamField("Price field",-1);
Periods = Param("Periods", 15, 2, 300, 1 );
Width = Param("Width%", 2, 0, 10, 0.05 );
Color = ParamColor("Color", colorCycle );
Style = ParamStyle("Style", styleLine | styleNoLabel | styleThick );
CenterLine = MA( P, Periods );
Plot( (1 + Width * 0.01) * CenterLine, "%EnvTop" + _PARAM_VALUES(), Color, Style ); 
Plot( (1 - Width * 0.01) * CenterLine, "%EnvBot" + _PARAM_VALUES(), Color, Style ); 
_SECTION_END();
_SECTION_BEGIN("Volume");
Plot( Volume, _DEFAULT_NAME(), ParamColor("Color", colorGreen ), ParamStyle( "Style", styleArea | styleHistogram | styleOwnScale | styleThick, maskHistogram  ), 2 );
_SECTION_END();