DoorHandler

local door = script.Parent:WaitForChild("Door")
if not door.PrimaryPart then
    door.PrimaryPart = door:WaitForChild("HINGE")
end


--CONFIGURATION--
local keycardName = "KEYCARD"

local timeOpen = 8

local goalRot = 105

local openLength = 2
local closeLength = 1.2
-----------------

local pos = door:GetPivot().Position
local initialRot = door.PrimaryPart.Orientation.Y

local opened = false
local animationHappening = false

local prompt = Instance.new("ProximityPrompt")
prompt.ObjectText = "Keycard Door"
prompt.ActionText = "Open door"
prompt.KeyboardKeyCode = Enum.KeyCode.E
prompt.HoldDuration = 0
prompt.RequiresLineOfSight = false
prompt.MaxActivationDistance = 8
prompt.Parent = door

local cfv = Instance.new("CFrameValue")
cfv.Value = door:GetPivot()
cfv.Parent = door

cfv:GetPropertyChangedSignal("Value"):Connect(function()
    door:PivotTo(cfv.Value)
end)


function ease(x)
    local n1 = 7.5625
    local d1 = 2.75

    if (x < 1 / d1) then
        return n1 * x * x
    elseif (x < 2 / d1) then
        x -= 1.5/d1
        return n1 * (x) * x + 0.75
    elseif (x < 2.5 / d1) then
        x -= 2.25/d1
        return n1 * (x) * x + 0.9375
    else
        x -= 2.625/d1
        return n1 * (x) * x + 0.984375
    end
end


function closeDoor()

    if opened and not animationHappening then
        opened = false
        animationHappening = true

        local currentRot = door.PrimaryPart.Orientation.Y

        local closeStarted = tick()
        while true do
            local x = (tick() - closeStarted) / closeLength
            local rotOffset = ease(x) * -goalRot

            cfv.Value = CFrame.new(pos) * CFrame.Angles(0, math.rad((initialRot + goalRot) + rotOffset), 0)

            if x >= 1 then
                break
            end

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

        animationHappening = false
        prompt.Enabled = true
    end
end

function openDoor()

    if not opened and not animationHappening then
        opened = true
        animationHappening = true

        prompt.Enabled = false

        local openStarted = tick()

        while true do
            local x = (tick() - openStarted) / openLength
            local rotOffset = ease(x) * goalRot

            cfv.Value = CFrame.new(pos) * CFrame.Angles(0, math.rad(initialRot + rotOffset), 0)

            if x >= 1 then
                break
            end

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

        animationHappening = false
    end
end



prompt.Triggered:Connect(function(plr)

    local char = plr.Character
    if char and char:FindFirstChild("Humanoid") and char.Humanoid.Health > 0 then

        if char:FindFirstChild(keycardName) and char[keycardName]:IsA("Tool") then

            task.spawn(openDoor)
            task.wait(timeOpen)
            task.spawn(closeDoor)
        end
    end
end)