Add Supertrend function for EA

I have a working self developed EA, dealing with US30. 

I want to add a SuperTrend function to it. Supertrend is an indicator from TradingView. You can check it there. The Code is public and free. 

The function shall return the SuperTrend of the current time of the tick. I just need the Source Code.

Variable: 

TimeFrame M5,15,M30,H1,D1

Return: true or false

Example: 

bool UpTrend = SuperTrendUp(_Symbol,PERIOD_CURRENT);

bool DownTrend = !SuperTrendUp(_Symbol,PERIOD_CURRENT);