How do I implement a function call once a day?

Dronio Dronio:
Task: building Fibonacci lines of the previous day from the minimum price for yesterday to the maximum? How can this be done technically? Exactly calling the object creation function exactly once a day? Thanks.

Something like that:

global:

datetime = lastDay;

In OnTick()

if(lastDay != iTime(Symbol (), PERIOD_D1, 1))
{
//draw your FIBA
if (if FIBA is drawn) lastDay = iTime(Symbol (), PERIOD_D1, 1);

}

It’s a fish. Adjust to yourself.