I stumbled on the exact same question and I'm having the same issues in searching for answers. I'm still learning Swift, but the answers here - https://stackoverflow.com/questions/36996012/how-can-i-allow-my-function-to-accepts-two-different-objects-in-swift match my previous programming experience. You can use class inheritance, either inheriting from another class that implements the method or from a protocol (which seems similar to an interface in C#). But the question here is what is the class or protocol that implements the moveForward() function?
filipejsbrandao
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It seems Expert and Character derive from the class Actor. So one way to do it is:
func mover(persona: Actor, times: Int){
for i in 1 ... times {
persona.moveForward()
}
}