Hull Moving Average Testing

[edgE 10]

The Hull Moving Average consists of colored bars to indicate bullish or bearish or can be represented also by a single plot line that changes color when bullish or bearish.  I have the following Tradestation Strategy and am trying to make an indicator or colored bars to match.

Assistance is greatly appreciated.

Inputs:
    double LengthB(1),
    double LengthA(0);

Vars:
    double TradeSize(1),
    IntrabarPersist bool Filter(true), //used just before sending order
    IntrabarPersist double PriceBuyMarket(0), //order open price
    IntrabarPersist double PriceSellMarket(0); //order open price

//Open Buy Order
if HMA(Close, 20) > HMA(Close, 20)[1] //Hull Moving Average > Hull Moving Average
then
begin
    Filter = true;    
    if Filter then
    begin
        PriceBuyMarket = Close;
        Buy ("entry1") TradeSize contracts next bar at market;
    end;
end;

//Open Sell Order
if HMA(Close, 20) < HMA(Close, 20)[1] //Hull Moving Average < Hull Moving Average
then
begin
    Filter = true;    
    if Filter then
    begin
        PriceSellMarket = Close;
        Sell Short ("entry2") TradeSize contracts next bar at market;
    end;
end;