Bollinger-Rsi Trending wave for Amibroker (AFL)

_SECTION_BEGIN("_trending wave");
SetChartOptions(0, chartShowArrows|chartShowDates, chartGrid20 |chartGrid50 |chartGrid80);
_N(Title =EncodeColor(colorGreen)+ StrFormat("{{NAME}} {{DATE}} " + EncodeColor(colorBlack)+" < Open %g > "+ EncodeColor(colorBlue)+ " < High %g > "+ EncodeColor(colorRed)+" < Low %g > "+ EncodeColor(colorBlack) + " < Close %g > " + EncodeColor(colorBrown ) + "< Change" +" %.2f%% > " + "< Range " +(H-L) +" >" +" < Volume " +WriteVal( V, 1.0 ) +" >"+" {{VALUES}} ", O, H, L, C, SelectedValue( ROC( C, 1 )) ));
SetChartBkColor(ParamColor("Outer Panel Color ",colorWhite)); // color of outer border 
SetChartBkGradientFill( ParamColor("Inner Panel Color Upper Half",colorWhite),
ParamColor("Inner Panel Color Lower Half",colorWhite)//color of inner panel
,ParamColor("Behind Text Color", colorLavender));
GraphXSpace=7;

Hc=(O+H+L+C)/4;

Ho = AMA( Ref( Hc, -1 ), 0.5 );

pds = Optimize("pds ",Param("pds ",4,1,25,1),1,25,1);
myArray = (RSIa((HC), pds )+ RSIa( Ho,pds ) + Ref(RSIa(Ho,pds),-1) + Ref(RSIa(Ho,pds),-2) + Ref(RSIa(Ho,pds),-3))/5 ; 

myArrayS = (AMA( myArray , 0.5 )); //smooth

BS = ParamToggle("smooth","No|Yes",1);
BN = ParamToggle("normal","No|Yes",1);

if (BS) Plot( myArrayS , " smooth ", IIf( myArrayS >=Ref(myArrayS ,-1), colorGreen, colorRed ));
if (BS) Plot ( 1, "", IIf( myArrayS >=Ref(myArrayS ,-1), colorGreen, IIf( myArrayS < Ref(myArrayS ,-1), colorRed, colorLavender )), styleOwnScale|styleArea|styleNoLabel, -0.5, 100 );

if (BN) Plot( myArray , " RSI ", IIf( myArray >=Ref(myArray ,-1), colorGreen, colorRed ));
if (BN) Plot ( 2, "", IIf( myArray >=Ref(myArray ,-1), colorGreen, IIf( myArray < Ref(myArray ,-1), colorRed, colorLavender )), styleOwnScale|styleArea|styleNoLabel, -0.5, 100 );

HistInd=myArray - myArrayS ;

if (BS AND BN) Plot(HistInd, _DEFAULT_NAME(),
IIf(HistInd>=0, ParamColor("Up Color", colorDarkGreen), ParamColor("Down Color", colorRed)),
ParamStyle( "Style", styleHistogram | styleThick, maskHistogram ));
if (BS AND BN) Plot(0,"",colorBlack, styleLine|styleDashed | styleThick);

Plot(80,"RESISTENCE",colorRed, styleLine|styleDashed | styleThick);
Plot(50,"",colorBlack, styleLine|styleDashed | styleThick);
Plot(20,"SUPPORT",colorBlue, styleLine|styleDashed | styleThick); 
_SECTION_END();

_SECTION_BEGIN("Bollinger Bands");
P = ParamField("Price field",-1);
Periods = Param("Periods", 15, 2, 100, 1 );
Width = Param("Width", 2, 0, 10, 0.05 );
Color = ParamColor("Color", colorLightGrey );
Style = ParamStyle("Style", styleLine | styleNoLabel ) | styleNoLabel;
Plot( bbt = BBandTop( P, Periods, Width ), "BBTop" + _PARAM_VALUES(), Color, Style ); 
Plot( bbb = BBandBot( P, Periods, Width ), "BBBot" + _PARAM_VALUES(), Color, Style ); 
PlotOHLC( bbt, bbt, bbb, bbb, "", ColorBlend( Color, colorWhite, 0.9 ), styleNoLabel | styleCloud | styleNoRescale, Null, Null, Null, -1 );
_SECTION_END();