animate opacity

zombie_farm

Ok I know this is totally simple but I just can't seem to get my head around it. I want to animate the opacity slowly up then when it reaches 100% animate it back down.
I made two attributes one for on and off.
and the other integer to plug into the opacity channel.

any help?
thanks

Weswog

You can use interpolate to do that easily


Cheers, Weswog

quantumsheep

You can use interpolate

Have it change attribute 'self.opacity' to 1 over 2 seconds say.

Then have a rule

if self.opacity =1
interpolate self.opacity to 0 over 2 seconds

(I'm using '2 seconds' as an example - you can adjust to suit, obviously)

Hope that helps!

QS

Edit: Beaten by Weswog to the punch! Kids these days are so fast!

Edit2: Don't forget to set the actor's initial opacity to 0

Valan

The easiest way is to use interpolate.
Start by interpolating the alpha when the actor starts.

Use a rule when it = 1
Interpolate to 0

Use another rule when it = 0
interpolate to 1

You may get collision problems and you may lessen this by adding pauses at 0 and 1 so the actor is not always in Interpolate mode.

Another way is to use timers and Change Attribute.

Hope this helps

Edit: WOW! so quick
And I was hoping to be first!

Edit: Nice video, Weswog.