local Players = game:GetService("Players")
local RunService = game:GetService("RunService")

local player = Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local humanoid, hrp

-- Respawn handler
local function onCharacterAdded(char)
	character = char
	humanoid = char:WaitForChild("Humanoid")
	hrp = char:WaitForChild("HumanoidRootPart")
end

player.CharacterAdded:Connect(onCharacterAdded)
onCharacterAdded(character)

-- Utility
local function getEquippedTool()
	for _, tool in ipairs(character:GetChildren()) do
		if tool:IsA("Tool") then
			return tool
		end
	end
	return nil
end

local function faceTarget(targetHRP)
	local myPos = hrp.Position
	local targetPos = Vector3.new(targetHRP.Position.X, myPos.Y, targetHRP.Position.Z)
	hrp.CFrame = CFrame.new(myPos, targetPos)
end

local function getClosestPlayer(maxDistance)
	local closest, shortestDist = nil, maxDistance
	for _, other in ipairs(Players:GetPlayers()) do
		if other ~= player and other.Character and other.Character:FindFirstChild("HumanoidRootPart") then
			local dist = (other.Character.HumanoidRootPart.Position - hrp.Position).Magnitude
			if dist < shortestDist then
				closest = other
				shortestDist = dist
			end
		end
	end
	return closest, shortestDist
end

-- Main loop
RunService.RenderStepped:Connect(function()
	if not humanoid or not hrp then return end

	local closestPlayer, rawDistance = getClosestPlayer(100)
	if not closestPlayer then return end

	local targetHRP = closestPlayer.Character and closestPlayer.Character:FindFirstChild("HumanoidRootPart")
	if not targetHRP then return end

	-- Calculate scaled thresholds based on velocity
	local myVelocity = hrp.Velocity.Magnitude
	local targetVelocity = targetHRP.Velocity.Magnitude
	local speed = math.max(myVelocity, targetVelocity)

	local scale = math.floor(speed / 10)

	local equipDist = 10 + scale
	local useDist = 8 + scale
	local unequipDist = 11 + scale

	local equippedTool = getEquippedTool()

	if rawDistance <= equipDist then
		if not equippedTool then
			humanoid:UnequipTools()
			task.wait(0.05)
			local tool = player.Backpack:FindFirstChildOfClass("Tool")
			if tool then
				humanoid:EquipTool(tool)
			end
		end

		-- Face and use tool
		faceTarget(targetHRP)
		if rawDistance <= useDist and getEquippedTool() then
			getEquippedTool():Activate()
		end
	elseif rawDistance >= unequipDist and equippedTool then
		humanoid:UnequipTools()
	end
end)