ESOUI SVN HyperToxicsHealerHelper

--
htHealerHelper = {}
htHealerHelper.name = "HyperToxicsHealerHelper"
htHealerHelper.version = 0.1
htHealerHelper.unitTags = {}
htHealerHelper.inCombat = false
htHealerHelper.playerName = ""
htHealerHelper.LOW_HEALTH = 0.60

-- Initialize our addon
function htHealerHelper.OnAddOnLoaded(eventCode, addOnName)
        if (addOnName == htHealerHelper.name) then 
                htHealerHelper:Initialize()
        end
end


--integer eventCode, string unitTag, integer powerIndex, integer powerType, integer powerValue, integer powerMax, integer powerEffectiveMax
function htHealerHelper.OnPowerUpdate(eventCode, unitTag, powerIndex, powerType, powerValue, powerMax, powerEffectiveMax)
        htHealerHelper.UpdateVolatileUnitInfo(unitTag)
end


function htHealerHelper:Initialize()
        self.inCombat = IsUnitInCombat("player")
        self.playerName = GetUnitName("player")
        EVENT_MANAGER:RegisterForEvent(self.name, EVENT_PLAYER_COMBAT_STATE, self.OnPlayerCombatState);
        EVENT_MANAGER:RegisterForEvent(self.name, EVENT_POWER_UPDATE, htHealerHelper.OnPowerUpdate);


        --self.savedVariables = ZO_SavedVars:New("HyperToxicHealerHelperSavedVariables", 1, nil, {})
        self.savedVariables = ZO_SavedVars:NewAccountWide("HyperToxicHealerHelperSavedVariables", 1, nil, {})

        self:RestorePosition()

    htHealerHelperIndicatorBG:SetAlpha(0)
    
        htHealerHelperIndicator:SetWidth( 600 )
        htHealerHelperIndicator:SetHeight( 50 )

    htHealerHelperIndicatorT:ClearAnchors();
    htHealerHelperIndicatorT:SetAnchor(CENTER, htHealerHelperIndicator, CENTER, 0, 0)

    htHealerHelperIndicatorT:SetWidth( 600 )
        htHealerHelperIndicatorT:SetHeight( 50 )
        htHealerHelperIndicatorT:SetHorizontalAlignment(1)

        EVENT_MANAGER:RegisterForEvent(self.name, EVENT_GAME_CAMERA_UI_MODE_CHANGED, htHealerHelper.UIModeChanged)

        EVENT_MANAGER:RegisterForEvent(self.name, EVENT_PLAYER_ACTIVATED, htHealerHelper.LateInitialize);
        EVENT_MANAGER:UnregisterForEvent(self.name, EVENT_ADD_ON_LOADED);

    EVENT_MANAGER:RegisterForEvent(self.name,  EVENT_ACTION_LAYER_POPPED , htHealerHelper.ShowInterface)
    EVENT_MANAGER:RegisterForEvent(self.name,  EVENT_ACTION_LAYER_PUSHED , htHealerHelper.HideInterface)

end

-- Fancy loaded message
function htHealerHelper.LateInitialize(eventCode, addOnName)
        d("HyperToxic's Healer Helper loaded...")

        EVENT_MANAGER:UnregisterForEvent(htHealerHelper.name, EVENT_PLAYER_ACTIVATED);
end


function htHealerHelper.OnPlayerCombatState(event, inCombat)
        -- The ~= operator is "not equal to" in Lua.
        if inCombat ~= htHealerHelper.inCombat then
                -- The player's state has changed. Update the stored state...
                htHealerHelper.inCombat = inCombat
                if inCombat then
                        -- entering combat - clear unitTags
                        htHealerHelper.unitTags = {}            
                else
                        -- exiting combat - clear indicator
                        htHealerHelperIndicatorT:SetColor(255, 255, 255, 255)
                        htHealerHelperIndicatorT:SetText("")
                end
        end
end

function htHealerHelper.UpdateIndicator()

        --unit.Name = GetUnitName(unitTag)
        --unit.Dead = IsUnitDead(unitTag)
        --unit.Online = IsUnitOnline(unitTag)
        --unit.HealthPercent = currentHp / maxHp
        --unit.LowHealth = unit.HealthPercent <= htHealerHelper.LOW_HEALTH
        --unit.InSupportRange = IsUnitInGroupSupportRange(unitTag)
        --unit.UnitTag = unitTag

        local priorityUnit = nil;

        
        
        
        if htHealerHelper.inCombat then
                
                --do we have a low health ally nearby
                for i, unit in pairs(htHealerHelper.unitTags) do
                        if unit.Online and (not unit.Dead) and unit.InSupportRange and unit.LowHealth then
                                if not priorityUnit then
                                        priorityUnit = unit
                                else
                                        if unit.HealthPercent < priorityUnit.HealthPercent then
                                                priorityUnit = unit
                                        end
                                end 
                        end
                end
                --if we dont have a low health ally nearby select a low health out of range ally.
                if not priorityUnit then
                        for i, unit in pairs(htHealerHelper.unitTags) do
                                if unit.Online and (not unit.Dead) and (not unit.InSupportRange) and unit.LowHealth then
                                        if not priorityUnit then
                                                priorityUnit = unit
                                        else
                                                if unit.HealthPercent < priorityUnit.HealthPercent then
                                                        priorityUnit = unit
                                                end
                                        end 
                                end
                        end
                end 

                if priorityUnit then
                        if priorityUnit.InSupportRange then
                                htHealerHelperIndicatorT:SetColor(255, 0, 0, 255)
                                if htHealerHelper.playerName == priorityUnit.Name then
                                        htHealerHelperIndicatorT:SetText("Heal yourself!")
                                else
                                        htHealerHelperIndicatorT:SetText("Heal " .. priorityUnit.Name .. ".")
                                end
                        else
                                htHealerHelperIndicatorT:SetColor(255, 255, 0, 255)
                                htHealerHelperIndicatorT:SetText(priorityUnit.Name .. " is out of range.")
                        end
                else
                        htHealerHelperIndicatorT:SetText("")
                end
                
        end
end

function htHealerHelper.UpdateVolatileUnitInfo(unitTag)

        if not unitTag then
                return
        end

        local currentHp, maxHp, effectiveMaxHp
        local unit = {}



        if htHealerHelper.inCombat and (string.sub(unitTag,1,string.len("group"))=="group" or string.sub(unitTag,1,string.len("player"))=="player") then

                currentHp, maxHp, effectiveMaxHp = GetUnitPower(unitTag, POWERTYPE_HEALTH)

                unit.Name = GetUnitName(unitTag)
                unit.Dead = IsUnitDead(unitTag)
                unit.Online = IsUnitOnline(unitTag)
                unit.HealthPercent = currentHp / maxHp
                unit.LowHealth = unit.HealthPercent <= htHealerHelper.LOW_HEALTH 
                unit.InSupportRange = IsUnitInGroupSupportRange(unitTag)
                unit.UnitTag = unitTag

                htHealerHelper.unitTags[unitTag] = unit

                htHealerHelper.UpdateIndicator()
        end

        
end


function htHealerHelper.OnIndicatorMoveStop()
        htHealerHelper.savedVariables.left = htHealerHelperIndicator:GetLeft()
        htHealerHelper.savedVariables.top = htHealerHelperIndicator:GetTop()
end

function htHealerHelper:RestorePosition()
        local left = self.savedVariables.left
        local top = self.savedVariables.top
 
        htHealerHelperIndicator:ClearAnchors()
        htHealerHelperIndicator:SetAnchor(TOPLEFT, GuiRoot, TOPLEFT, left, top)
end

function htHealerHelper.UIModeChanged()

        -- zo_callLater(function () d(IsMenuVisisble()) end, 1000)
        
        if (IsReticleHidden()) then
                htHealerHelperIndicatorBG:SetAlpha(100)
                htHealerHelperIndicatorT:SetText("Healer Helper")
        else
                htHealerHelperIndicatorBG:SetAlpha(0)
                htHealerHelperIndicatorT:SetText("")
        end
end

-- Hide or show the add-on when other panels are open, like inventory.
-- There's probably a better way to hook this into the scene manager.
function htHealerHelper.HideInterface(eventCode,layerIndex,activeLayerIndex)
    --d(layerIndex .. ":" .. activeLayerIndex)
    -- We don't want to hide the interface if this is the user pressing the "." key, only if there's an interface displayed
    if (activeLayerIndex == 3) then
        htHealerHelperIndicator:SetHidden(true)
    end
end

function htHealerHelper.ShowInterface(...)
    htHealerHelperIndicator:SetHidden(false)
end

EVENT_MANAGER:RegisterForEvent(htHealerHelper.name, EVENT_ADD_ON_LOADED, htHealerHelper.OnAddOnLoaded);