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

local Player = game:GetService("Players").LocalPlayer
local Mouse = Player:GetMouse()
local Locked = false

local function WTS(Part)
	local Screen = workspace.CurrentCamera:WorldToViewportPoint(Part.Position)
	return Vector2.new(Screen.x, Screen.y)
end

function LockOn()
	if Mouse.Target then
		for _, v in pairs(game.Players:GetChildren()) do
			if Mouse.Target:FindFirstAncestor(v.Name) and v.Name ~= Player.Name then
				local PlayerName = Mouse.Target:FindFirstAncestor(v.Name)
				local Victim = PlayerName:FindFirstChild("HumanoidRootPart")
				Locked = true

				DrawESP = Drawing.new("Text")
				DrawESP.Color = _G.color
				DrawESP.Position = WTS(PlayerName.Head)
				DrawESP.Size = 20.0
				DrawESP.Outline = true
				DrawESP.Center = true
				DrawESP.Visible = _G.healthesp

				local NewThread = coroutine.create(function()
					Stepped = RunService.RenderStepped:Connect(function()
						local Camera = workspace.CurrentCamera
						if Victim then
							Workspace.CurrentCamera.CFrame = CFrame.new(Camera.CFrame.Position, Victim.CFrame.Position)
							DrawESP.Position = WTS(PlayerName.Head)
						else
							LockOff()
						end

						DrawESP.Text = "[".. tostring(math.floor(PlayerName.Humanoid.Health / PlayerName.Humanoid.MaxHealth * 100)).. "%]"

						local _, Screen = workspace.CurrentCamera:WorldToViewportPoint(PlayerName.Head.Position)
						if Screen then
							DrawESP.Visible = _G.healthesp
						else
							DrawESP.Visible = false
						end
					end)
				end)
				coroutine.resume(NewThread)
			end
		end
	end
end

function LockOff()
    if Stepped then
	    Stepped:Disconnect()
	    Locked = false
	end
	if DrawESP then
		DrawESP:Remove()
	end
end

Mouse.KeyDown:Connect(function(key)
	if key == _G.keybind then
		if Locked == true then
			LockOff()
		elseif Locked == false then
			LockOn()
		end
	end
end)