Add disabled status to FlxButton

[itulau]

A very common feature that is missing from FlxButton which I think would be beneficial to have: A DISABLED state for FlxButton which would make the button ignore inputs and be displayed as being unable to be clicked (greyed out).

[Vortex2Oblivion]

Would it be a good idea to add a disabled state to more flixel ui stuff
Like FlxUICheckBox for example?
Would need to make a pr on the flixel addons and ui repositories too ofc.

[Geokureli]

Would it be a good idea to add a disabled state to more flixel ui stuff Like FlxUICheckBox for example? Would need to make a pr on the flixel addons and ui repositories too ofc.

We discuss this in #3087. The changes are being made here: itulau/flixel-ui@601bf1f

[itulau]

Yes, https://github.com/itulau/flixel-ui/tree/flx-button-disabled contains my latest changes which should probably remove some issues related to adding the new disabled status. What I'm missing now is a demo to test those changes, which is becoming a bit tricky since I don't use flixel-ui's classes that much so I'm not sure where to begin.

[Geokureli]

I don't use flixel-ui's classes that much so I'm not sure where to begin.

Try some of the demos:

• Cursor Demo
• FlxSound Demo
• Tooltips Demo

Also, in your branch, I'm wondering if the toggle button graphic should have 2 disabled states, seeing how it has 2 of every other kind?