local UserInputService = game:GetService("UserInputService")
local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local TweenService = game:GetService("TweenService")
local Lighting = game:GetService("Lighting")

local player = Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local humanoidRootPart = character:WaitForChild("HumanoidRootPart")

-- Dash Settings
local dashing = false
local dashCooldown = false
local DASH_DISTANCE = 50
local DASH_TIME = 0.15
local COOLDOWN_TIME = 1

-- Motion Blur
local blur = Instance.new("BlurEffect")
blur.Size = 0
blur.Parent = Lighting

-- Cooldown UI
local screenGui = Instance.new("ScreenGui", player:WaitForChild("PlayerGui"))
screenGui.Name = "DashCooldownUI"

local barBackground = Instance.new("Frame", screenGui)
barBackground.Size = UDim2.new(0, 200, 0, 20)
barBackground.Position = UDim2.new(0.5, -100, 0.9, 0)
barBackground.BackgroundColor3 = Color3.fromRGB(50, 50, 50)

local cooldownBar = Instance.new("Frame", barBackground)
cooldownBar.Size = UDim2.new(1, 0, 1, 0)
cooldownBar.BackgroundColor3 = Color3.fromRGB(0, 170, 255)

-- Trail Setup
local function addTrail()
	local trail = Instance.new("Trail")
	trail.Color = ColorSequence.new{
		ColorSequenceKeypoint.new(0, Color3.fromRGB(0, 255, 255)),
		ColorSequenceKeypoint.new(1, Color3.fromRGB(0, 255, 0))
	}
	trail.Lifetime = 0.2
	trail.MinLength = 0.1
	trail.WidthScale = NumberSequence.new(1)

	local a0 = Instance.new("Attachment", humanoidRootPart)
	local a1 = Instance.new("Attachment", humanoidRootPart)
	a0.Position = Vector3.new(0, 1, 0)
	a1.Position = Vector3.new(0, -1, 0)

	trail.Attachment0 = a0
	trail.Attachment1 = a1
	trail.Parent = humanoidRootPart
	return trail
end

-- Dash Function
local function dash()
	if dashing or dashCooldown then return end
	dashing = true
	dashCooldown = true

	-- Enable motion blur
	blur.Size = 25

	-- Add trail
	local trail = addTrail()

	-- Tween cooldown bar
	cooldownBar.Size = UDim2.new(0, 0, 1, 0)
	TweenService:Create(cooldownBar, TweenInfo.new(COOLDOWN_TIME), {Size = UDim2.new(1, 0, 1, 0)}):Play()

	local direction = humanoidRootPart.CFrame.LookVector
	local startTime = tick()

	local connection
	connection = RunService.RenderStepped:Connect(function()
		local elapsed = tick() - startTime
		if elapsed >= DASH_TIME then
			humanoidRootPart.Velocity = Vector3.zero
			connection:Disconnect()
			dashing = false
			blur.Size = 0
			if trail then trail:Destroy() end

			task.delay(COOLDOWN_TIME, function()
				dashCooldown = false
			end)
			return
		end

		humanoidRootPart.Velocity = direction * (DASH_DISTANCE / DASH_TIME)
	end)
end

-- Keybind
UserInputService.InputBegan:Connect(function(input, gameProcessed)
	if gameProcessed then return end
	if input.KeyCode == Enum.KeyCode.F then
		dash()
	end
end)