OnKeyUp

[v6v]

How would I go about implementing a OnKeyUp rule, to meet the OnKeyPress rule? This is a question in response to the other one, in case my first question isn't possible in SGDK2.

[v6v]

(Bump) Anyone?

[bluemonkmn]

The question is a bit confusing because I don't think there is an OnKeyPress rule. In fact there are no rules that start with "On" because that implies an event handler, which Rules are not. There is an IsKeyPressed rule function, and that should work equally well to determine when a key is pressed and when it is not pressed.

[Vincent]

If you need to verify when a key is pressed and when it is released, you can do it by storing a flag (sprite flag or global counter) somewhere.  Here is some pseudo rule code:

If IsInputPressed (initial = false, button = button 1)
Then keyIsDown = 1 (set a flag)
End if

If keyIsDown == 1
And not IsInputPressed (initial = false, button = button 1)
Then keyIsDown = 0 (reset the flag)
And accomplish your action because the key was just released
End if

There you go.

[v6v]

Thanks Vincent, when I was writing it yesterday I was doing the same thing, with bool

[Vincent]

Yup, with a boolean, it's even better, but last time I checked you had to code it (use boolean flag) rather than just use rule editors (int sprite properties).