Frame only Hiding once :S

[Miiru]

Hello.

Im trying to write a little addon showing the first letter of the cast im currently casting.

So far it looks like this:

llocal frame = CreateFrame("Frame")

function frame:OnEvent(event, ...)

if event == "UNIT_SPELLCAST_START" then
	local spell, _, _, _, _, _ = UnitCastingInfo("player")
		
		if spell then 				
			
			resultat = string.sub (spell, 1, 1)
			local cnc = CreateFrame("Frame", "CNC",UIParent)
			cnc:SetFrameStrata(HIGH)
			cnc:SetMovable(false)
			cnc:SetWidth(220)
			cnc:SetHeight(10)
			cnc:ClearAllPoints()
			cnc:SetPoint("Center", "AzCastBarPluginPlayer")
			local font = cnc:CreateFontString(nil,"OVERLAY")
			font:SetFont("Fonts\\FRIZQT__.TTF",11, "OUTLINE")
			font:SetTextColor(0.07, 0.30, 0.46, 1.0);
			font:SetText(resultat)
			font:SetPoint("Left",CNC,"Left",-1,0)	
		end

elseif event == "UNIT_SPELLCAST_STOP" then
	CNC:Hide()
elseif event == "UNIT_SPELLCAST_FAILED" then
	CNC:Hide()
elseif event == "UNIT_SPELLCAST_SUCCEEDED" then
CNC:Hide()
elseif event == "UNIT_SPELLCAST_FAILED_QUIET" then
CNC:Hide()
end

end
frame:RegisterEvent("UNIT_SPELLCAST_START")
frame:RegisterEvent("UNIT_SPELLCAST_STOP")
frame:RegisterEvent("UNIT_SPELLCAST_SENT")
frame:RegisterEvent("UNIT_SPELLCAST_SUCCEEDED")
frame:RegisterEvent("UNIT_SPELLCAST_FAILED")
frame:RegisterEvent("UNIT_SPELLCAST_FAILED_QUIET")

frame:SetScript("OnEvent", frame.OnEvent)

Now, im no lua expert, im pretty much just using trial and error method so here's my problem:

The Addon does exactly what i want until after my first cast. After that cast, regardless if it fails or not, it just stops hiding the frame showing the first letter :S

I'm pretty clueless what to do so i thought maybe someone over here can help me out^^

[Xrystal]

As far as I know you can't hide or show frames while in combat. Correct me if I'm wrong guys However, you could just set an alpha state and make it transparent until you need to show it.

[Miiru]

Originally Posted by Xrystal As far as I know you can't hide or show frames while in combat. Correct me if I'm wrong guys However, you could just set an alpha state and make it transparent until you need to show it.

Tested it ooc

[Vrul]

Part of your problem is that you are creating a new frame/fontstring for each 'UNIT_SPELLCAST_START'. Another issue is that those events fire for more than just your character so you need to check that the first argument is 'player'.

I would recommend modifying things a bit:

local frame = CreateFrame('Frame', "CNC", UIParent)
frame:SetPoint('CENTER', "AzCastBarPluginPlayer")
frame:SetFrameStrata('HIGH')
frame:SetHeight(10)
frame:SetWidth(220)
frame:Hide()
 
local font = frame:CreateFontString(nil, 'OVERLAY')
font:SetPoint('LEFT', -1, 0)    
font:SetFont([[Fonts\FRIZQT__.TTF]], 11, 'OUTLINE')
font:SetTextColor(0.07, 0.3, 0.46, 1)
 
frame:SetScript('OnEvent', function(self, event, unit)
    if unit ~= 'player' then return end
    if event == 'UNIT_SPELLCAST_START' then
        local spell = UnitCastingInfo('player')
        if spell then               
            font:SetText(spell:sub(1, 1))
            self:Show()
            return
        end
    end
    self:Hide()
end)
frame:RegisterEvent('UNIT_SPELLCAST_FAILED')
frame:RegisterEvent('UNIT_SPELLCAST_FAILED_QUIET')
frame:RegisterEvent('UNIT_SPELLCAST_SENT')
frame:RegisterEvent('UNIT_SPELLCAST_START')
frame:RegisterEvent('UNIT_SPELLCAST_STOP')
frame:RegisterEvent('UNIT_SPELLCAST_SUCCEEDED')

[p3lim]

Originally Posted by Xrystal As far as I know you can't hide or show frames while in combat. Correct me if I'm wrong guys.

That only applies to secure frames (buttons, unitframes etc)

[Miiru]

Originally Posted by Vrul Part of your problem is that you are creating a new frame/fontstring for each 'UNIT_SPELLCAST_START'. Another issue is that those events fire for more than just your character so you need to check that the first argument is 'player'. I would recommend modifying things a bit:

This gives me

Message: Interface\AddOns\CNC\Core.lua:2: CNC:SetPoint(): Couldn't find region named 'AzCastBarPluginPlayer'
Time: 10/28/10 13:33:50
Count: 1
Stack: [C]: in function `SetPoint'
Interface\AddOns\CNC\Core.lua:2: in main chunk

Locals: (*temporary) = CNC {
0 = <userdata>
}
(*temporary) = "CENTER"
(*temporary) = "AzCastBarPluginPlayer"

>:

[Taroven]

Originally Posted by Neza This gives me Message: Interface\AddOns\CNC\Core.lua:2: CNC:SetPoint(): Couldn't find region named 'AzCastBarPluginPlayer'<snip>

Remove the quotes from "AzCastBarPluginPlayer" on line 2.

[Vrul]

Originally Posted by Neza Message: Interface\AddOns\CNC\Core.lua:2: CNC:SetPoint(): Couldn't find region named 'AzCastBarPluginPlayer'

You need to make sure that AzCastBar (or what ever addon creates AzCastBarPluginPlayer) is loaded before your addon. See wowpedia for details on how to accomplish that.

[Taroven]

Removing the quotes from the frame name should work if it's already been created as well.