Need AFL code for buying Call option. Please help I am stuck

[mvkakaria]

Hello everyone.
I am new to AFL.
Can anyone help me with the following code in AFL?

Buy ATM Call option whenever the underlying short MA crosses above long MA?

 

[raindrops]

there is plenty of free code on the net.
https://decodingmarkets.com/afl-amibroker/

fastema = EMA(C,50);
slowema = MA(C,200);

Buy = Cross(fastEMA,slowEMA); Buys when the 50 period EMA crosses over the 200 period EMA.
Sell = Cross(slowEMA,fastEMA); Sells when the 200 period EMA crosses under the 50 period EMA.