local Tool = script.Parent
local Handle = Tool:WaitForChild("Handle")

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

local Damage = 10
local AttackCooldown = 0.5
local MaxCombo = 4
local ComboCooldown = 1

local Player
local Character
local Humanoid
local Torso
local ToolEquipped = false
local LastAttackTime = 0
local AttackCount = 0

local Sounds = {
	Slash = Handle:WaitForChild("SwordSlash"),
	Lunge = Handle:WaitForChild("SwordLunge"),
	Unsheath = Handle:WaitForChild("Unsheath")
}

function CheckIfAlive()
	return Player and Character and Humanoid and Torso and Humanoid.Health > 0
end

function TagHumanoid(humanoid)
	local tag = Instance.new("ObjectValue")
	tag.Name = "creator"
	tag.Value = Player
	Debris:AddItem(tag, 2)
	tag.Parent = humanoid
end

function Blow(hit)
	if not hit or not hit.Parent or not CheckIfAlive() or not ToolEquipped then return end
	local humanoid = hit.Parent:FindFirstChildOfClass("Humanoid")
	if humanoid and humanoid.Health > 0 and hit.Parent ~= Character then
		TagHumanoid(humanoid)
		humanoid:TakeDamage(Damage)
	end
end

local Connection = Handle.Touched:Connect(Blow)

function PlayAttackAnimation()
	local animName = "Attack" .. tostring(math.clamp(AttackCount, 1, MaxCombo))
	local anim = Handle:FindFirstChild(animName)
	if anim and Humanoid then
		local track = Humanoid:LoadAnimation(anim)
		track:Play()
	end
end

function Activated()
	if not Tool.Enabled or not ToolEquipped or not CheckIfAlive() then return end

	local currentTime = tick()

	local cooldown = AttackCooldown
	if AttackCount >= MaxCombo then
		cooldown = ComboCooldown
	end

	if currentTime - LastAttackTime < cooldown then return end

	LastAttackTime = currentTime
	AttackCount = AttackCount + 1
	if AttackCount > MaxCombo then
		AttackCount = 1
	end

	Damage = 10
	Sounds.Slash:Play()
	PlayAttackAnimation()
end

function Equipped()
	Character = Tool.Parent
	Player = Players:GetPlayerFromCharacter(Character)
	Humanoid = Character:FindFirstChildOfClass("Humanoid")
	Torso = Character:FindFirstChild("Torso") or Character:FindFirstChild("HumanoidRootPart")

	if not CheckIfAlive() then return end
	ToolEquipped = true
	Sounds.Unsheath:Play()
end

function Unequipped()
	ToolEquipped = false
	AttackCount = 0
end

Tool.Activated:Connect(Activated)
Tool.Equipped:Connect(Equipped)
Tool.Unequipped:Connect(Unequipped)