Execute range notifcation?

[vbaspcppguy]

I'm looking for an addon that will notify me when I need to switch to backstab for mut spec (at 35% hp) ...preferably one that isn't bloated with other stuff.

[Phanx]

Not tested at all, but this should work:

1. Create a folder in your AddOns folder and name it "SimpleExecuteAlert".

2. Create a text file inside that folder and name it "SimpleExecuteAlert.toc". Inside it, write:

## Interface: 40000

SimpleExecuteAlert.lua

3. Create another text file in the same location and name it "SimpleExecuteAlert.lua". Inside it, write:

-- ***** BEGIN CONFIGURATION *****

-- Set the health percent below which to alert you.
local PERCENT = 0.35

-- Set the alert message to show you.
local MESSAGE = "Execute Now!"

-- Set the interval (in seconds) between alerts.
local INTERVAL = 10

-- ***** END CONFIGURATION *****

-- Store the time of the last reminder
local lasttime = 0

-- Create a frame to watch for target changes and health changes.
local f = CreateFrame("Frame")
f:RegisterEvent("PLAYER_TARGET_CHANGED")
f:SetScript("OnEvent", function(self, event, unit)
	if event == "UNIT_HEALTH" then
		if unit ~= "target" then
			-- We don't care about this unit.
			-- Quit.
			return
		end
		-- Find out how much health the target has.
		local current, max = UnitHealth("target"), UnitHealthMax("target")
		if current / max <= PERCENT then
			-- The target's health is less than or equal to 35%.
			if GetTime() - lasttime >= INTERVAL then
				-- It's been at least INTERVAL seconds since the last alert.
				-- Show the alert message in the UI Errors frame.
				UIErrorsFrame:AddMessage(MESSAGE, 1, 0.6, 0)
				-- Store the time of the alert.
				lasttime = GetTime()
			end
	else
		-- Don't need to check if it's PLAYER_TARGET_CHANGED, since
		-- that's the only other event this frame listens for.
		if UnitExists("target") and UnitCanAttack("player", "target") then
			-- Target exists and is attackable.
			-- Start watching its health.
			self:RegisterEvent("UNIT_HEALTH")
			-- Reset the time of the last warning, since this is a different target.
			lasttime = 0
			-- Immediately check the target's health.
			self:GetScript("OnEvent")(self, "UNIT_HEALTH", "target")
		else
			-- Target doesn't exist or isn't attackable.
			-- Stop watching its health.
			self:UnregisterEvent("UNIT_HEALTH")
		end
	end
end)

4. Change the values at the top of the Lua file as desired.

[vbaspcppguy]

So, I gave this a whack. No joy. I'll try to put some time into it later... I'm actually a programmer but I have very little experience with the wow api. This should be enough to get me on my way though.

Couple notes:
-Only tested in a duel so far. Dunno if its meant to work in PvP applications.
-I haven't actually put this in a lua file. I used WowLua to run it.
-There was a problem with the syntax of the inline function that I couldn't figure out (don't know lua well), so I made it a regular function.

[Phanx]

Fixed; there was a missing "end" in there. I tested in-game to make sure it works this time:

--[[ BEGIN CONFIGURATION ]]---------------------------------------------

-- Set the health percent below which to alert you.
local PERCENT = 0.35

-- Set the alert message to show you.
local MESSAGE = "Execute Now!"

-- Set the interval (in seconds) between alerts.
local INTERVAL = 10

--[[ END CONFIGURATION ]]-----------------------------------------------

-- Store the time of the last reminder
local lastTime = 0

-- Create a frame to watch for target changes and health changes.
local f = CreateFrame("Frame")
f:RegisterEvent("PLAYER_TARGET_CHANGED")
f:SetScript("OnEvent", function(self, event, unit)
	if event == "UNIT_HEALTH" then

		if unit ~= "target" then

			-- We don't care about this unit.
			-- Quit.
			return

		end

		-- Find out how much health the target has.
		local health, maxHealth = UnitHealth("target"), UnitHealthMax("target")
		if health > 0 and health / maxHealth <= PERCENT then

			-- The target is alive, and its health is 35% or lower.
			if GetTime() - lastTime >= INTERVAL then

				-- It's been at least INTERVAL seconds since the last alert.
				-- Show the alert message in the UI Errors frame.
				UIErrorsFrame:AddMessage(MESSAGE, 1, 0.6, 0)

				-- Store the time of the alert.
				lastTime = GetTime()

			end
		end

	else

		-- Don't need to check if it's PLAYER_TARGET_CHANGED, since
		-- that's the only other event this frame listens for.
		if UnitExists("target") and UnitCanAttack("player", "target") then

			-- Target exists and is attackable.
			-- Start watching its health.
			self:RegisterEvent("UNIT_HEALTH")

			-- Reset the time of the last warning, since this is a different target.
			lastTime = 0
			-- Immediately check the target's health.
			self:GetScript("OnEvent")(self, "UNIT_HEALTH", "target")

		else

			-- Target doesn't exist or isn't attackable.
			-- Stop watching its health.
			self:UnregisterEvent("UNIT_HEALTH")

		end

	end
end)