making a button

[ac3raven]

This is an absurdly simple question I imagine. One of the things I have never been able to figure out is how to make a button so that when I press it, item X appears, and then when I press it again, item X disappears.

[nivram]

Set an Alterable Value.

Button is pressed
+Alterable Value of button= 0
Set alterable value of button to 1

Alterable value of button=1
+Only one action when event loops
Object appear

Button is pressed
+alterable value of button = 1
Set alterable value of button to 2

Alterable value of button=2
+Only one action when event loops
Object invisible
Set button alterable value to 0

Marv

[Corlen]

I've always had to use an alterable value delay for actions that are duplicate but toggle something else. In nivram's example for me it would act like the button was pressed twice in the same moment and then it would only register the last duplicate action in the events.

[Stephen]

To add to what Marv said, you could also toggle a flag:

Button is pressed
+Toggle Flag 0

Flag 0 is on
Only once while event loops
+Object Reappear

Flag 0 is off
Only once while event loops
+Object Invisible

[Corlen]

StephenL's example would actually work for me without the need to use an alterable value delay because there's only one "button is pressed" action.