Giving Attributes a Fade Effect with their opacity

hulkspidy51

Hi guys! Pretty new to gamesalad. I was wondering if anyone knew how to create a fade effect to an actor. What I'm wanting to do it for the player to press on a card, when the card is released it plays an animation where the card flips over. How do I go about creating a delay after the animation and then creating a fade out effect so that it disappears

JohnPapiomitis

interpolate self color alpha to 0

cheers

hulkspidy51

Sweet! Thanks man!

gyroscope

...and the delay after the animation can be made by using a Timer behavior, set to "After" so many seconds, then the Interpolate behavior as John advised. :-)

old_kipper

Or you can feed the trigger to interpolate from a rule that reads the animation playing and then fires off a specific when>self image=

ORBZ

Interpolate has some drawbacks: Mainly that if you ever want to interrupt the fade FX you are going to cause the interpolate behavior to go wonky. If there is no chance of the fade being aborted then by all means, use interpolate, it's simple and easy to use. HOWEVER, i often find myself wanting to interrupt a fade effect thus I do this:

rule some_condition_to_trigger_fade
change attribute self.initTime = self.time

rule some_condition_to_stop_fade
change attribute self.initTime = 0
change attribute self.alpha = 1

rule self.alpha > 0 and self.initTime > 0:
constrain self.alpha = cos(10*(self.time - self.initTime))

// adjust 10 to however many seconds you want the fade to take.

gyroscope

Really neat, Orbz, I lik that! I've kept this post as a favourite, thanks. :-)