Buy & Volatbuy & TGL for Amibroker (AFL)

//PRICE
_SECTION_BEGIN("Price");
SetChartOptions(0,chartShowArrows|chartShowDates);
_N(Title = StrFormat("{{NAME}} - {{INTERVAL}} {{DATE}} Open %g, Hi %g, Lo %g, Close %g (%.1f%%) {{VALUES}}", O, H, L, C,
           SelectedValue( ROC( C, 1 ) ) ));
Plot( C, "Close", ParamColor("Color", colorBlack ), styleNoTitle | ParamStyle("Style") | GetPriceStyle() ); 
_SECTION_END();
//==================================================================================================================
//BOLLINGER BANDS
_SECTION_BEGIN("BB1");
P = ParamField("Price field",-1);
Periods = Param("Periods", 20, 1, 300, 1 );
Width = Param("Width", 1, 0, 10, 0.05 );
Color = ParamColor("Color", colorCycle );
Style = ParamStyle("Style");
Plot( BBandTop( P, Periods, Width ), "BBTop" + _PARAM_VALUES(), colorRed, Style ); 
Plot( BBandBot( P, Periods, Width ), "BBBot" + _PARAM_VALUES(), colorRed, Style ); 
_SECTION_END();
_SECTION_BEGIN("BB2");
P = ParamField("Price field",-1);
Periods = Param("Periods", 20, 2, 300, 1 );
Width = Param("Width", 2, 0, 10, 0.05 );
Color = ParamColor("Color", colorCycle );
Style = ParamStyle("Style");
Plot( BBandTop( P, Periods, Width ), "BBTop" + _PARAM_VALUES(), Color, Style ); 
Plot( BBandBot( P, Periods, Width ), "BBBot" + _PARAM_VALUES(), Color, Style ); 
_SECTION_END();
//==============================================================================================
_SECTION_BEGIN("MA20");
MA20upcol=IIf(MA(C,20)>Ref(MA(C,20),-1),colorBlue,colorAqua) ;
Plot( MA(C,20),"MA20", ma20upcol, styleDots) ; 
_SECTION_END();
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//TRENDING RIBBON
// Paste the code below to your price chart somewhere and green ribbon means both
// both MACD and ADX trending up so if the red ribbon shows up the MACD and the ADX 
// are both trending down.
_SECTION_BEGIN("trending ribbon");
uptrend=PDI()>MDI() AND MACD()>Signal();
downtrend=MDI()>PDI() AND Signal()>MACD();
Plot( 2, /* defines the height of the ribbon in percent of pane width */"ribbon",
IIf( uptrend, colorLime, IIf( downtrend, colorRed, 0 )), /* choose color */
styleOwnScale|styleArea|styleNoLabel, -0.5, 100 );
_SECTION_END();
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//FORMULE
P = ParamField("Price field",-1);
cuptop1=C>BBandTop(p,20,1) ;
bot1=BBandBot(p,20,1) ;
top2=BBandTop(p,20,2) ;
bot2=BBandBot(p,20,2) ;
stocup=StochK()>StochD() ;
MACDup=MACD()>Signal() ;
Hist=MACD()-Signal() ;
Histup=Hist>Ref(Hist,-1) ;
MFIupema5=MFI()>EMA(MFI(),5) ;
Cupo=C>O ;
top1up=BBandTop(p,20,1)>Ref(BBandTop(p,20,1),-1) ;
band=BBandTop(p,20,2)-BBandBot(p,20,2) ;
Volatbuy=band>Ref(band,-1) ;
cupbot1=C>BBandBot(p,20,1) ;
bot1up=BBandBot(p,20,1)>Ref(BBandBot(p,20,1),-1) ;
MA20up=MA(C,20)>Ref(MA(C,20),-1) ;
Vup10=V>10000 ;
CCIup0=CCI()>0 ;
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//PARAMTOGGLE
// This combines indicators into one timing Signal
//function ParamOptimize( description, default, minv, maxv, step )
//    { return Optimize(description, Param(description,default, minv, maxv, step ), minv, maxv, step ); }
tgl = ParamToggle("Result", "AND logic|Compare");
// switch test calculation and compare the results
if(tgl)
{
myBuy = volatbuy AND MA20up AND Histup AND MFIupema5 AND MACDup AND stochup ;
myShort = !volatbuy AND !Histup AND !mfiupema5 ; 
}
else
{
myBuy   = IIf( band>Ref(band,-1) AND MA(C,20)>Ref(MA(C,20),-1) AND Hist>Ref(Hist,-1) AND MFI()>EMA(MFI(),5) AND
          MACD()>Signal() AND StochK()>StochD()       ,1,0);
myShort = IIf( band<Ref(band,-1) AND Hist<Ref(Hist,-1) AND MFI()<EMA(MFI(),5)       ,1,0);
}

Buy = ExRem(myBuy, myShort);
Sell = ExRem(myShort, myBuy);

PlotShapes(IIf(Buy,shapeUpArrow,shapeNone),colorBlue,0,L,Offset=-10);
PlotShapes(IIf(Sell,shapeDownArrow,shapeNone),colorRed,0,H,Offset=-10);