You were close.
Jens showed you how it is supposed to look.
Usually you'd put '()' if what you're trying to call is a function (Which 'alState' isn't).
Ex.
void OnEnter()
{
ChangePlayerStateToNormal();
}
And the 'int' is a declaration of the variable 'alState' that you're going to be using. It should only be declared in the first line, where all the parameters go.
Ex.
void CollideFunction(string &in asParent, string &in asChild, int alState)
Also:
I'm not sure if the HPL engine will give you an error for this, but when you have a decimal number you should write an 'f' after it, to show that it's a float.
Ex.
FadeRadialBlurTo(0.03f, 0.03f);
Trying is the first step to success.