Top Bottom Trendline Detector - Amibroker AFL Code

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_SECTION_BEGIN("Floor Top");

hcl=(O+H+L+C)/4;
Ho=AMA(Ref(hcl,-1),0.5);
HH=Max(H,Max(hcl,Ho));
HL=Min(L,Min(hcl,Ho));

trader = (hcl-Ho);
VarRedLine = WMA(trader,5); 
VarBlueLine = MA(trader,8);
Per = Param("MA Periods",15,3,50,1);
//Plot(trader,"trader",colorDarkRed);
thick=Param("thickness",0.5,0.01,5,0.01);
thick1=Param("ribbon thickness",0.5,0.01,50,0.01);

//P = ParamField("Price field",-1);
HDCPeriods = per;
//Width = Param("Width", 2, 0, 10, 0.05 );
//Color = ParamColor("Color", colorCycle );
//Style = ParamStyle("Style");
bbbot = BBandBot( trader, HDCPeriods, 2 );
bbtop = BBandTop( trader, HDCPeriods, 2 );
Plot( bbtop, "Roof" , colorWhite, styleThick ); 
Plot( bbbot, "Floor" , colorWhite, styleThick ); 

VarAMA = Param("varAMA",0.1,0,2,0.01);
hcl2=(H+L+C)/3;
Ho2=AMA(Ref(hcl2,-1),VarAMA);
HH2=Max(H,Max(hcl2,Ho2));
HL2=Min(L,Min(hcl2,Ho2));
trader2 = hcl2-Ho2;

Plot(trader2,"trader2",colorGrey40);
Plot(EMA(trader2,4),"ema",IIf(EMA(trader2,4) > Ref(EMA(trader2,4),-1),colorBrightGreen,colorRed),styleThick);

//PlotOHLC(trader2,trader2+thick,trader2-thick,trader2,"trader",colorBlue,styleCloud);
//PlotOHLC(trader,trader+thick,trader-thick,trader,"investor",colorRed,styleCloud);

//PlotOHLC(bbbot, bbbot ,IIf(bbbot < trader2,bbbot,trader2),bbbot,"",colorRed,styleCloud);
//PlotOHLC(bbtop, IIf(bbtop > trader2,bbtop,trader2),bbtop,bbtop,"",colorBrightGreen,styleCloud);

Plot(0,"0",colorDarkGrey,styleLine);
Color_rib = IIf(trader2 > bbtop, colorDarkGrey, IIf(trader2 < bbbot, colorDarkGrey,IIf(trader2 > Ref(trader2,-1), colorBrightGreen,colorDarkRed)));
//PlotOHLC(0,thick1,-thick1,0,"",color_rib,styleCloud);

_SECTION_END();