UnitPowerAlt

zork · 02-03-11, 03:07 AM

I gathered some information on the UnitPowerAlt stuff.

Code:

  --default Blizzard PlayerPowerBarAlt
  PlayerPowerBarAlt:Hide()

  --Event handling
  frame:RegisterEvent("UNIT_POWER")
  frame:RegisterEvent("UNIT_POWER_BAR_SHOW")
  frame:RegisterEvent("UNIT_POWER_BAR_HIDE")
  
  --WoW API Functions
  UnitAlternatePowerInfo("player")
  UnitAlternatePowerTextureInfo(...)
  UnitPower("player", ALTERNATE_POWER_INDEX)
  UnitPowerMax("player", ALTERNATE_POWER_INDEX)

Currently only two powerbars of that type are known.

PlayerPowerAlt for Atramedes and Cho'gall.

Onyxia Bossframe on Nefarian encounter has a alternative powerbar aswell. No clue about the name though.

Creating an player power alternative statusbar on its own in form of a statusbar should be quite simple.

Just create the statusbar make it 0/100, hook the events and check for UnitAlternatePowerInfo(). If that is true get the percentage value of UnitPower(alt_index) to UnitPowerMax(alt_index) and apply that value to the statusbar.

Does anyone have information on the onyxia bossframe altpowerbar?

I just checked ShadowedUnitFrames. There is already some kind of element for that.

Code:

local AltPower = {}
ShadowUF:RegisterModule(AltPower, "altPowerBar", ShadowUF.L["Alt. Power bar"], true)

local ALTERNATE_POWER_INDEX = ALTERNATE_POWER_INDEX

function AltPower:OnEnable(frame)
	frame.altPowerBar = frame.altPowerBar or ShadowUF.Units:CreateBar(frame)

	frame:RegisterUnitEvent("UNIT_POWER", self, "Update")
	frame:RegisterUnitEvent("UNIT_MAXPOWER", self, "Update")
	frame:RegisterUnitEvent("UNIT_POWER_BAR_SHOW", self, "UpdateVisibility")
	frame:RegisterUnitEvent("UNIT_POWER_BAR_HIDE", self, "UpdateVisibility")

	frame:RegisterUpdateFunc(self, "UpdateVisibility")
end

function AltPower:OnLayoutApplied(frame)
	if( frame.visibility.altPowerBar ) then
		local color = ShadowUF.db.profile.powerColors.ALTERNATE
		frame.altPowerBar:SetStatusBarColor(color.r, color.g, color.b, ShadowUF.db.profile.bars.alpha)
	end
end

function AltPower:OnDisable(frame)
	frame:UnregisterAll(self)
end

function AltPower:UpdateVisibility(frame)
	local barType, minPower, _, _, _, hideFromOthers = UnitAlternatePowerInfo(frame.unit)
	local visible = barType and (frame.unit == "player" or not hideFromOthers)
	ShadowUF.Layout:SetBarVisibility(frame, "altPowerBar", visible)
	AltPower:Update(frame, nil, nil, "ALTERNATE")
end

function AltPower:Update(frame, event, unit, type)
	if( type ~= "ALTERNATE" ) then return end
	local cur = UnitPower(frame.unit, ALTERNATE_POWER_INDEX)
	local max = UnitPowerMax(frame.unit, ALTERNATE_POWER_INDEX)
	local barType, min = UnitAlternatePowerInfo(frame.unit)
	frame.altPowerBar.currentPower = cur
	frame.altPowerBar:SetMinMaxValues(min or 0, max or 0)
	frame.altPowerBar:SetValue(cur or 0)
end

Player bar

Code:

	if( ShadowUF.db.profile.hidden.playerAltPower ) then
		PlayerPowerBarAlt:UnregisterEvent("UNIT_POWER_BAR_SHOW")
		PlayerPowerBarAlt:UnregisterEvent("UNIT_POWER_BAR_HIDE")
		PlayerPowerBarAlt:UnregisterEvent("PLAYER_ENTERING_WORLD")
		PlayerPowerBarAlt:Hide()
	end

The Onyxia alternative power bar is bound to the bossframe. It is gone once you spawn bossframes via oUF. Which is good since you only have to spawn the powerbar alt for bossframes without having to deactivate a specific frame like for player.

haste · 02-03-11, 06:06 AM

oUF has supported the alt power bar since late December. I haven't pushed a release yet as I've had some stuff I wanted to test and change.

Hopefully I'll get my last batch of testing done and can push a release this week.

Rainrider · 02-03-11, 06:29 AM

There is an AltPowerBar when one does the quests associated with Iso'Rath (starting with Devoured) in Twilight Highland. In case you need this for testing.

haste · 02-03-11, 06:31 AM

Thanks, but the AltPowerBar has already been tested and verified working (unless I missed something). It's the unit swapping in raids for vehicles that still require some minor testing.

sacrife · 02-07-11, 05:22 PM

I created a little power bar that fits my unit frames and UI, but feel free to modify it to your own needs.

This should cover all the known bosses/quests that use the alt power bar as well as it's function and value.

(Add under shared stuff)

*EDIT*
Oh, and tested and works! :P

lua Code:

-- alt power bar
    local AltPowerBar = CreateFrame("StatusBar", nil, self)
    AltPowerBar:SetWidth(cfg.widthF)
    AltPowerBar:SetHeight(17)
    AltPowerBar:SetStatusBarTexture(settings.texture)
    AltPowerBar:SetStatusBarColor(1,0,0)
    AltPowerBar:SetPoint("BOTTOM", UIParent, "BOTTOM", 0, 226)
    AltPowerBar.bd = SetBD(AltPowerBar, backdrop, {0.17, 0.17, 0.17, 1})
    
    AltPowerBar.type = AltPowerBar:CreateFontString(nil, "OVERLAY")
    AltPowerBar.type:SetFontObject(cfg.Font)
    AltPowerBar.type:SetText("")
    AltPowerBar.type:SetPoint("LEFT",4,0)
        
    AltPowerBar.value = AltPowerBar:CreateFontString(nil, "OVERLAY")
    AltPowerBar.value:SetFontObject(cfg.Font)
    AltPowerBar.value:SetJustifyH("RIGHT")
    AltPowerBar.value:SetPoint("RIGHT",-2,0)
    AltPowerBar.value:SetText("")
    
    AltPowerBar:RegisterEvent("UNIT_POWER")
    --AltPowerBar:RegisterEvent("PLAYER_ENTERING_WORLD")
    AltPowerBar:SetScript("OnEvent", function(self,event,...)
        alternatePower = UnitPower("player", ALTERNATE_POWER_INDEX)
        ZoneName = GetRealZoneText()
        subZoneName = GetSubZoneText()
        
        if alternatePower >= 0 then
            AltPowerBar.value:SetText(alternatePower)
        else
            AltPowerBar.value:SetText(0)
        end
        
        if ZoneName == "Twilight Highlands" then -- Iso'Rath Quest (Maw of Madness)
            AltPowerBar:SetStatusBarColor(0.5,0.8,0.3)
            AltPowerBar.type:SetText("DIGESTION")
        elseif ZoneName == "The Bastion of Twilight" then -- Cho'Gall
            AltPowerBar:SetStatusBarColor(0.5,0,1)
            AltPowerBar.type:SetText("CORRUPTION")
        elseif ZoneName == "Blackwing Descent" then -- Atramedes and Nefarion
            if subZoneName == "The Athenaeum" then
                AltPowerBar:SetStatusBarColor(0,0.5,1)
                AltPowerBar.type:SetText("SOUNDLVL")
            else --elseif subZoneName == "Vault of the Shadowflame" --Onyxia Rage
                AltPowerBar:SetStatusBarColor(0,0.5,1)
                AltPowerBar.type:SetText("ONYRAGE")
            end
        end
    end)

zork · 02-08-11, 02:33 AM

Onyxia's bar is hooked to the bossframe1 or 2 afaik.
So UnitPower("player", ALTERNATE_POWER_INDEX) will fail for that.

Basically I would spawn the powerbar for bossframes and for player. But you could even spawn it in raids to see the powertype of other players afaik.

sacrife · 02-08-11, 02:52 AM

I tested it for onyxia and it worked fine. Atleast for the 5 seconds I was alive

So I have no need to create one additional linked to the boss frames.

However, spawning a bar for each raid member is an interesting idea. Not entirely sure where to put it though.
Maybe a small bar below the normal mana/energy/etc bar on the raid frames.

Will have to test it in todays raid. One question though, with my current code being put in shared what will happen in a raid with 10 members?
Maybe I should add a check for if unit == player or raid%d and only then draw/size/etc the frames?

haste · 02-08-11, 06:27 AM

Is there any reason behind you rolling your own solution, instead of using the internal one?

Your current code is hard-coded for player however.

sacrife · 02-08-11, 06:31 AM

The reason is I'm a noob and don't know how to use your built in function to do what I did above with the least amount of code. Also I'm not sure if you have the feature for changing color/info for each type of bar depending on your location etc.
And also atm I know it is limited to finding the number for the player power, but shouldnt bars spawn for every frame when I have it under shared but every frame would have the player power number?

Freebaser · 02-08-11, 12:41 PM

You can use PostUpate. The bar color and power name can be gathered from blizzard functions.

some drycode

lua Code:

local PostUpdateAltPower = function(altpower, min, cur, max)
    local self = altpower.__owner
 
    local tPath, r, g, b = UnitAlternatePowerTextureInfo(self.unit, 2) -- 2 is statusbar index
    if(r) then
        altpower:SetStatusBarColor(r, g, b)
    end
 
    local powerName = select(10, UnitAlternatePowerInfo(self.unit))
    if(powerName) then
        altpower.text:SetText(powerName)
    end
end

sacrife · 02-08-11, 01:30 PM

Originally Posted by Freebaser

You can use PostUpate. The bar color and power name can be gathered from blizzard functions.

some drycode

lua Code:

local PostUpdateAltPower = function(altpower, min, cur, max)
    local self = altpower.__owner
 
    local tPath, r, g, b = UnitAlternatePowerTextureInfo(self.unit, 2) -- 2 is statusbar index
    if(r) then
        altpower:SetStatusBarColor(r, g, b)
    end
 
    local powerName = select(10, UnitAlternatePowerInfo(self.unit))
    if(powerName) then
        altpower.text:SetText(powerName)
    end
end

What code would I have to add under player or raid then?

self.altpower:SetWidth/pos/height/Show/etc?

Freebaser · 02-08-11, 02:16 PM

Remove the event stuff from you previous code and add

Code:

self.AltPowerBar = AltPowerBar
self.AltPowerBar.PostUpdate = PostUpdateAltPower

Use PostUpdate to add the power text value or create a tag for it.

Rainrider · 02-19-11, 02:14 PM

Sacrife, why don't you add a tooltip for it as in the standart interface instead of displaying powerName on the bar itself?

lua Code:

self.AltPowerBar.Tooltip = function(self)
    local powerName = select(10, UnitAlternatePowerInfo(self.__owner.unit))
    local powerTooltip = select(11, UnitAlternatePowerInfo(self.__owner.unit))
        
    GameTooltip:SetOwner(self, "ANCHOR_TOPLEFT", 0, 5)
    GameTooltip:AddLine(powerName)
    GameTooltip:AddLine("\n"..powerTooltip, nil, nil, nil, true)
    GameTooltip:Show()
end
    
self.AltPowerBar:EnableMouse()
self.AltPowerBar:HookScript("OnLeave", GameTooltip_Hide)
self.AltPowerBar:HookScript("OnEnter", self.AltPowerBar.Tooltip)

Dawn · 02-19-11, 03:03 PM

As a sidenote:
I'd try to implement the altpower thing via oUF and it seems to fail on that fun quest where you have to defend your farm against zombies (Flower vs. Zombies Q line next to Tarrens Mill). It didn't show up at all.
I'm pretty sure I didn't do it wrong. Since, I also tried to copy and paste oUF_Lily's implementation, after trying it on my own.

I ended up with scaling blizzards bar down and making it moveable, keeping the art etc., instead.

Rainrider · 02-20-11, 01:24 PM

I did some testing on Zombies vs Plants and thats what I got

All the altPower infos are reported for player and not for vehicle
/run print(UnitAlternatePowerInfo("player")) -- returns the normal bunch of values
/run print(UnitPower("player", ALTERNATE_POWER_INDEX)) -- returns 0
/run print(UnitPowerMax("player", ALTERNATE_POWER_INDEX)) -- returns 4

The three above return nothing, 0, 0 respectevely when I use vehicle as unit.

Thus in oUF/elements/altpowerbar.lua Toggler would be called when unit == "vehicle" and self.unit == "vehicle" and will fail as UnitPowerMax(unit, ALTERNATE_POWER_INDEX) would return 0. UpdatePower fails then because powerType for unit vehicle is always ENERGY.

I then commented out in Toggler

Code:

if(unit ~= self.unit) then return end

and changed in UpdatePower

Code:

if(self.unit ~= unit or powerType ~= 'ALTERNATE') then return end

to

Code:

if(powerType ~= 'ALTERNATE') then return end

Toggler calls then UpdatePower on every UNIT_POWER for all units (initially failing to show the altpowerbar as min and max are both 0 because at UNIT_POWER_BAR_SHOW it gets unit == "pet" and unit == "vehicle"). After some zombies die, the altpowerbar changes to 25% for unit == "player" and self.unit == "vehicle". It fails again to show the bar because of

Code:

local cur = UnitPower(unit, ALTERNATE_POWER_INDEX)
local max = UnitPowerMax(self.unit, ALTERNATE_POWER_INDEX)

in UpdatePower. Changing this to local max = UnitPowerMax(unit, ALTERNATE_POWER_INDEX) updates and shows the powerbar.

I hope this helps somehow.

sacrife · 02-20-11, 01:44 PM

On Cho'gall I got 2 bars on top of eachother, which was really annoying. How do I solve that?

Never mind, it was just every raid's bar stacked on each other.

Dawn · 02-20-11, 03:32 PM

Originally Posted by Rainrider

I did some testing on Zombies vs Plants and thats what I got

All the altPower infos are reported for player and not for vehicle
/run print(UnitAlternatePowerInfo("player")) -- returns the normal bunch of values
/run print(UnitPower("player", ALTERNATE_POWER_INDEX)) -- returns 0
/run print(UnitPowerMax("player", ALTERNATE_POWER_INDEX)) -- returns 4

The three above return nothing, 0, 0 respectevely when I use vehicle as unit.

Thus in oUF/elements/altpowerbar.lua Toggler would be called when unit == "vehicle" and self.unit == "vehicle" and will fail as UnitPowerMax(unit, ALTERNATE_POWER_INDEX) would return 0. UpdatePower fails then because powerType for unit vehicle is always ENERGY.

I then commented out in Toggler

Code:

if(unit ~= self.unit) then return end

and changed in UpdatePower

Code:

if(self.unit ~= unit or powerType ~= 'ALTERNATE') then return end

to

Code:

if(powerType ~= 'ALTERNATE') then return end

Toggler calls then UpdatePower on every UNIT_POWER for all units (initially failing to show the altpowerbar as min and max are both 0 because at UNIT_POWER_BAR_SHOW it gets unit == "pet" and unit == "vehicle"). After some zombies die, the altpowerbar changes to 25% for unit == "player" and self.unit == "vehicle". It fails again to show the bar because of

Code:

local cur = UnitPower(unit, ALTERNATE_POWER_INDEX)
local max = UnitPowerMax(self.unit, ALTERNATE_POWER_INDEX)

in UpdatePower. Changing this to local max = UnitPowerMax(unit, ALTERNATE_POWER_INDEX) updates and shows the powerbar.

I hope this helps somehow.

Thanks for further investigation. Someone should open a ticket over at github. *cough*

Rainrider · 02-20-11, 04:28 PM

Ticket opened at https://github.com/haste/oUF/issues/73

zork · 03-16-11, 01:25 AM

If I understand haste correctly spawning an AltPowerBar for the pet unit should do it? Gonna test that later. My AltPowerBar is nearly finished.

zork · 03-16-11, 12:45 PM

Tested. haste is correct. Create a powerbar for player and pets and you will be fine.

If you hack the default element you will destroy it.