[cokedrivers]

Originally Posted by SDPhantom You need a UnitID to be able to get reaction colors. I'm guessing since you're using GUID that this is coming from a chat event, which can come from things without valid UnitIDs.

Thanks for the reply.

Here is the whole code I'm trying to use. As I said before I'm not a great code writer.

------------------------------------------------------------------------
--	 Chat Bubbles
------------------------------------------------------------------------

local settings = {
	fontSender = {"Fonts\\FRIZQT__.TTF", 12},
	showSender = true,
}

-- Events & corresponding cVars
local events = {
	CHAT_MSG_SAY = "chatBubbles", CHAT_MSG_YELL = "chatBubbles",
	CHAT_MSG_PARTY = "chatBubblesParty", CHAT_MSG_PARTY_LEADER = "chatBubblesParty",
	CHAT_MSG_MONSTER_SAY = "chatBubbles", CHAT_MSG_MONSTER_YELL = "chatBubbles", CHAT_MSG_MONSTER_PARTY = "chatBubblesParty",
}

-- WorldFrame frames are always uiScaled it seems
local function FixedScale(len)
	return GetScreenHeight() * len / 768
end

local function RotateCoordPair(x, y, ox, oy, a, asp)
	y = y / asp
	oy = oy / asp
	return ox + (x - ox) * math.cos(a) - (y - oy) * math.sin(a),
		(oy + (y - oy) * math.cos(a) + (x - ox) * math.sin(a)) * asp
end

-- Clip + rotate texture
local function SetRotatedTexCoords(tex, left, right, top, bottom, width, height, angle, originx, originy)
	local ratio, angle, originx, originy = width / height, math.rad(angle), originx or 0.5, originy or 1
	local LRx, LRy = RotateCoordPair(left, top, originx, originy, angle, ratio)
	local LLx, LLy = RotateCoordPair(left, bottom, originx, originy, angle, ratio)
	local ULx, ULy = RotateCoordPair(right, top, originx, originy, angle, ratio)
	local URx, URy = RotateCoordPair(right, bottom, originx, originy, angle, ratio)
	tex:SetTexCoord(LRx, LRy, LLx, LLy, ULx, ULy, URx, URy)
end

-- Skin a new frame
local function SkinFrame(frame)
	for i = 1, select("#", frame:GetRegions()) do
		local region = select(i, frame:GetRegions())
		if region:GetObjectType() == "FontString" then
			frame.text = region
		end
	end
	
	-- Chat text
    frame.text:SetFontObject('SystemFont_Small')
    frame.text:SetJustifyH('LEFT')
	
	-- Sender text
	if settings.showSender then
		frame.sender = frame:CreateFontString(nil, 'OVERLAY', 'NumberFont_Outline_Med')
		frame.sender:SetPoint('BOTTOMLEFT', frame.text, 'TOPLEFT', 0, 4)
		frame.sender:SetJustifyH('LEFT')
	end
	
	-- Border
	frame:ClearAllPoints()
	frame:SetPoint("TOPLEFT", frame.text, -7, settings.showSender and 10 + FixedScale(settings.fontSender[2]) or 7)
	frame:SetPoint("BOTTOMRIGHT", frame.text, 7, -7)
    frame:SetBackdrop({
        bgFile = 'Interface\\Tooltips\\UI-Tooltip-Background',
        edgeFile = 'Interface\\Tooltips\\UI-Tooltip-Border',
		tile = true,
        tileSize = 16,
        edgeSize = 12,
        insets = {left=3, right=3, top=3, bottom=3},
    })
    frame:SetBackdropColor(0, 0, 0, 1)
	
	
	-- Hide Chat Bubble Tail
	local bottom, tail
	for i = 1, select("#", frame:GetRegions()) do
		local region = select(i, frame:GetRegions())
		if region:GetObjectType() == "Texture" then
			if ({region:GetPoint()})[1] == "BOTTOMLEFT" and region:GetPoint(2) then
				bottom = region
			elseif region:GetTexture() == "Interface\\Tooltips\\ChatBubble-Tail" then
				tail = region
			end
		end
	end
	
	tail:ClearAllPoints()
	tail:Hide()
	
	frame:HookScript("OnHide", function() frame.inUse = false end)
end

-- Update a frame
local function UpdateFrame(frame, guid, name)
	if not frame.text then SkinFrame(frame) end
	frame.inUse = true
	
	if settings.showSender then
		local class
		if guid ~= nil and guid ~= "" then
			_, class, _, _, _, _ = GetPlayerInfoByGUID(guid)
		end
		
		if name then
			local color = RAID_CLASS_COLORS[class] or {  r = 157/255, g = 197/255, b = 255/255 }
			frame.sender:SetText(("|cFF%2x%2x%2x%s|r"):format(color.r * 255, color.g * 255, color.b * 255, name))
			if frame.text:GetWidth() < frame.sender:GetWidth() then
				frame.text:SetWidth(frame.sender:GetWidth())
			end
		end
	end
end

-- Find chat bubble with given message
local function FindFrame(msg)
	for i = 1, WorldFrame:GetNumChildren() do
		local frame = select(i, WorldFrame:GetChildren())
		if not frame:GetName() and not frame.inUse then
			for i = 1, select("#", frame:GetRegions()) do
				local region = select(i, frame:GetRegions())
				if region:GetObjectType() == "FontString" and region:GetText() == msg then
					return frame
				end
			end

		end
	end
end

local f = CreateFrame("Frame")
for event, cvar in pairs(events) do f:RegisterEvent(event) end

f:SetScript("OnEvent", function(self, event, msg, sender, _, _, _, _, _, _, _, _, _, guid)
	if GetCVarBool(events[event]) then
		f.elapsed = 0
		f:SetScript("OnUpdate", function(self, elapsed)
			self.elapsed = self.elapsed + elapsed
			local frame = FindFrame(msg)
			if frame or self.elapsed > 0.3 then
				f:SetScript("OnUpdate", nil)
				if frame then UpdateFrame(frame, guid, sender) end
			end
		end)
	end
end)

Thanks again for any help with this.

Coke