DamageIndicatorHandler

local gui = script.Parent
local indicator = script:WaitForChild("DamageIndicator")

local remote = game:GetService("ReplicatedStorage"):WaitForChild("DamageIndicatorReplicatedStorage"):WaitForChild("DamageEvent")

local tweenService = game:GetService("TweenService")
local indicatorFadeTI = TweenInfo.new(0.3, Enum.EasingStyle.Quad, Enum.EasingDirection.In)

local camera = workspace.CurrentCamera

local timeAfterIndicatorExpires = 5



function getCentreCF(object:Instance)

    local instanceCF = object.CFrame

    local pos = instanceCF.Position
    local lookAt = instanceCF.LookVector * Vector3.new(1, 0, 1)

    local centreCF = CFrame.new(pos, pos + (lookAt))

    return centreCF
end

function calculateAngle(centre:CFrame, point:Vector3)

    local damageDir = centre:PointToObjectSpace(point)

    local theta = math.atan2(damageDir.Z, damageDir.X)
    local angleInDegrees = math.deg(theta) + 90

    return angleInDegrees
end

function damageDealt(originOfDamage:Vector3)

    local centreCF = getCentreCF(camera)
    local angleInDegrees = calculateAngle(centreCF, originOfDamage)

    local newIndicator = indicator:Clone()
    newIndicator.DamageIndicatorImage.ImageTransparency = 0
    newIndicator.Visible = true

    newIndicator.Rotation = angleInDegrees

    newIndicator.Parent = gui


    task.spawn(function()
        while newIndicator and newIndicator.Parent == gui do

            local centreCF = getCentreCF(camera)
            local angleInDegrees = calculateAngle(centreCF, originOfDamage)

            newIndicator.Rotation = angleInDegrees

            game:GetService("RunService").Heartbeat:Wait()
        end
    end)


    task.wait(timeAfterIndicatorExpires)

    local indicatorFadeTween = tweenService:Create(newIndicator.DamageIndicatorImage, indicatorFadeTI, {ImageTransparency = 1})

    indicatorFadeTween:Play()
    indicatorFadeTween.Completed:Wait()

    newIndicator:Destroy()
end


remote.OnClientEvent:Connect(damageDealt)