Alpha Fading Text or Frames

Geebles · 04-09-09, 02:04 PM

I'm trying to get a frame to alpha fade out. I've found these function, but they don't appear to work:
wowwiki.com/API_UIFrameFadeIn
wowwiki.com/API_UIFrameFlash

Has anyone been able to get them to work? Or know another way? I haven't been able to find any kind of timeout function for lua...

Geebles · 04-09-09, 02:29 PM

I'm trying this right now, though I'm not sure it is the best way...

The triggering event sets a variable:

Code:

AlphaVariable = 4;

And the frame I want to fade has:

Code:

<OnUpdate>
if(AlphaVariable>0) then
	AlphaVariable = AlphaVariable-0.1;
	this:SetAlpha(AlphaVariable);
end
</OnUpdate>

It will only begin to fade once goes below 1. Anything higher provides a delay, before fading. So initially setting it to 4 provides a slight delay.

Cralor · 04-09-09, 04:51 PM

Do you want the frame to fade out when you are Out of Combat? When? On choice?

You can use the following to get started:

frame:SetAlpha(value) - sets the alpha value of a frame
frame:RegisterEvent("event") - registers an event that you can later use to do things when it triggers
PLAYER_REGEN_DISABLED - an event that is triggered when you ENTER combat
PLAYER_REGEN_ENABLED - when you leave combat
PLAYER_ENTERING_WORLD - when you see a loading screen (this is only useful if you want to start out with an alpha value of something OTHER than 1)

You will need to use these events under your OnEvent function. Something like this:

Code:

function OnEvent(self, event, arg1)
    if (event == "PLAYER_REGEN_DISABLED") then
        frame:SetAlpha(in_combat_value_here)
    elseif (event == "PLAYER_REGEN_ENABLED") then
        frame:SetAlpha(out_combat_value_here)
    end
end

Hope I helped you out somehow!

Aezay · 04-10-09, 04:41 PM

Something like this might be what you are looking for. Just set the frame's fadeTime to a value in seconds, and the frame will fadeout over that time.

Code:

local frame.fadeElapsed = 0;

local function OnUpdate(self,elapsed)
	-- Normal update here
	if (not self.fadeTime) then
		-- code
	-- FadeOut
	elseif (self.fadeElapsed <= self.fadeTime) then
		self.fadeElapsed = (self.fadeElapsed + elapsed);
		self:SetAlpha(1 - self.fadeElapsed / self.fadeTime);
	else
		self:Hide();
	end
end