it is a pain sometimes to try and make your own if statements i really wish it could be implemented i have tried to make if statements but they are specific to each game, if you agree get this some love 
That’s basically filters for Flowlab
In my opinion they should add an if logic gate or something because filters are good for some things and not others like a game I was making needed to check if they were touching something at a specific angle and having to assign a value to it would have made things way more complex (it was also checking a lot more stuff) but if there was an if statement then I could have cut down on a lot more code.