vanilla-wow-addons – Rev 1

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local module = ArcHUD:NewModule("TargetMana")
module.unit = "target"
module.defaults = {
        Enabled = false,
        Outline = true,
        ShowPerc = true,
        Side = 2,
        Level = 2,
}
module.options = {
        {name = "ShowPerc", text = "SHOWPERC", tooltip = "SHOWPERC"},
        attach = true,
}
module.localized = true

function module:Initialize()
        -- Setup the frame we need
        self.f = self:CreateRing(true, ArcHUDFrame)
        self.f:SetAlpha(0)

        self.MPPerc = self:CreateFontString(self.f, "BACKGROUND", {40, 12}, 11, "RIGHT", {1.0, 1.0, 1.0}, {"TOPLEFT", self.f, "BOTTOMLEFT", -100, -115})
end

function module:Update()
        if(self.db.profile.ShowPerc) then
                self.MPPerc:Show()
        else
                self.MPPerc:Hide()
        end

        if(self.db.profile.Outline) then
                self.f.BG:Show()
        else
                self.f.BG:Hide()
        end

        -- Clear all points for the ring
        self.f:ClearAllPoints()

        -- Clear all points for the percentage display
        self.MPPerc:ClearAllPoints()
        self.f:SetValue(0)
        if(self.db.profile.Side == 1) then
                -- Attach to left side
                self.f:SetPoint("TOPLEFT", self.parent:GetModule("Anchors").Left, "TOPLEFT", self.db.profile.Level * -15, 0)
                self.MPPerc:SetPoint("TOPLEFT", self.f, "BOTTOMLEFT", -100, -115)
                self.f.BG:SetReversed(false)
                self.f:SetReversed(false)
        else
                -- Attach to right side
                self.f:SetPoint("TOPRIGHT", self.parent:GetModule("Anchors").Right, "TOPRIGHT", self.db.profile.Level * 15, 0)
                self.MPPerc:SetPoint("TOPLEFT", self.f, "BOTTOMLEFT", 50, -115)
                self.f.BG:SetReversed(true)
                self.f:SetReversed(true)
        end
        if(UnitExists(self.unit)) then
                self.f:SetValue(UnitMana(self.unit))
        end
        self.f.BG:SetAngle(180)
end

function module:Enable()
        self.f:UpdateColor({["r"] = 1, ["g"] = 0, ["b"] = 0})
        if not UnitExists(self.unit) then
                self.f:SetMax(100)
                self.f:SetValue(0)
                self.MPPerc:SetText("")
        else
                self.f:SetMax(UnitManaMax(self.unit))
                self.f:SetValue(UnitMana(self.unit))
                self.MPPerc:SetText(floor((UnitMana(self.unit) / UnitManaMax(self.unit)) * 100).."%")
        end

        -- Register the events we will use
        self:RegisterEvent("UNIT_MANA",                 "UpdateMana")
        self:RegisterEvent("UNIT_MAXMANA",              "UpdateMana")
        self:RegisterEvent("UNIT_ENERGY",               "UpdateMana")
        self:RegisterEvent("UNIT_MAXENERGY",    "UpdateMana")
        self:RegisterEvent("UNIT_RAGE",                 "UpdateMana")
        self:RegisterEvent("UNIT_MAXRAGE",              "UpdateMana")
        self:RegisterEvent("UNIT_FOCUS",                "UpdateMana")
        self:RegisterEvent("UNIT_MAXFOCUS",             "UpdateMana")
        self:RegisterEvent("UNIT_DISPLAYPOWER")
        self:RegisterEvent("PLAYER_TARGET_CHANGED")

        -- Activate the timers
        self:StartMetro(self.name .. "Alpha")
        self:StartMetro(self.name .. "Fade")
        self:StartMetro(self.name .. "Update")

        self.f:Show()
end

function module:PLAYER_TARGET_CHANGED()
        self.f.alphaState = -1
        if(not UnitExists(self.unit)) then
                self.f:SetMax(100)
                self.f:SetValue(0)
                self.MPPerc:SetText("")
        else
                self.f.pulse = false
                self.f:SetMax(UnitManaMax(self.unit))
                self.f:UpdateColor(ManaBarColor[UnitPowerType(self.unit)])
                if(UnitIsDead(self.unit) or UnitIsGhost(self.unit) or UnitManaMax(self.unit) == 0) then
                        self.f:SetValue(0)
                        self.MPPerc:SetText("")
                else
                        self.f:SetValue(UnitMana(self.unit))
                        self.MPPerc:SetText(floor((UnitMana(self.unit) / UnitManaMax(self.unit)) * 100).."%")
                end
        end
end

function module:UNIT_DISPLAYPOWER()
        if(arg1 ~= self.unit) then return end

        self.f:UpdateColor(ManaBarColor[UnitPowerType(self.unit)])
        self.f:SetValue(UnitMana(self.unit))
        self.f:SetMax(UnitManaMax(self.unit))

        if(UnitManaMax(self.unit) > 0) then
                self.MPPerc:SetText(floor((UnitMana(self.unit) / UnitManaMax(self.unit)) * 100).."%")
        else
                self.MPPerc:SetText("")
        end
end

function module:UpdateMana()
        if(event == "UNIT_MAXMANA" or event == "UNIT_MAXENERGY" or event == "UNIT_MAXRAGE" or event == "UNIT_MAXFOCUS") then
                self.f:SetMax(UnitManaMax(self.unit))
                if(UnitManaMax(self.unit) > 0) then
                        self.MPPerc:SetText(floor((UnitMana(self.unit) / UnitManaMax(self.unit)) * 100).."%")
                else
                        self.MPPerc:SetText("")
                end
        else
                self.f:SetValue(UnitMana(self.unit))
                if(UnitManaMax(self.unit) > 0) then
                        self.MPPerc:SetText(floor((UnitMana(self.unit) / UnitManaMax(self.unit)) * 100).."%")
                else
                        self.MPPerc:SetText("")
                end
        end
end