How would i make a duck function?

[Slash]

i suggest to work with finite state machine.
http://compilgames.net/wiki/doku.php/gdevelop/tutorials/howtofinitestatemachine

Working with Game States and Finite State Machine

Have you ever found yourself struggling because your game got too complicated, with flag variables all over the place? When you add one new feature, many places have to be refactored because bugs and glitches are easily introduced? Changing one place and breaking another became routine? If the scenario above, described with code examples in the introduction “We’ve All Been There” of the State Chapter from the book Game Programming Patterns (read online for free) by Robert Nystrom, I wrote this …