Quick question, hopefully a simple one -- is there any way to make a character flashing/blinking WITHOUT making an animation with every other frame being blank? That isn't too hard to do, but... as you can imagine, it's a lot of work. I'd rather not do all of that if there's an easier way.
The way I would approach this is as follows:
Have a group (let's call it "flashing") that's always enabled, and have it monitor a variable that will determine whether the character should flash or not (let's call it "flashOrNot").
Also, use a variable that will keep track of the flash rate (let's call it "flashDuration").
In the "flashing" group, have it subtract delta time from "flashDuration", and if it dips below zero, add your initial amount (let's say 0.5 for half a second) and then toggle the character's visibility.
And that's it.
The "flashing" group will take care of everything for you, and all you have to do is set "flashOrNot" to 0 for no flashing, or 1 for flashing.