local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local Camera = workspace.CurrentCamera
local LocalPlayer = Players.LocalPlayer

local function createLine()
    local line = Drawing.new("Line")
    line.Visible = false
    line.Color = Color3.new(1, 1, 1)
    line.Thickness = 1
    line.Transparency = 1
    return line
end

local function createSkeleton(player)
    local lines = {}
    local connection

    local R15_Joints = {
        {"Head", "UpperTorso"}, {"UpperTorso", "LowerTorso"},
        {"UpperTorso", "LeftUpperArm"}, {"LeftUpperArm", "LeftLowerArm"}, {"LeftLowerArm", "LeftHand"},
        {"UpperTorso", "RightUpperArm"}, {"RightUpperArm", "RightLowerArm"}, {"RightLowerArm", "RightHand"},
        {"LowerTorso", "LeftUpperLeg"}, {"LeftUpperLeg", "LeftLowerLeg"}, {"LeftLowerLeg", "LeftFoot"},
        {"LowerTorso", "RightUpperLeg"}, {"RightUpperLeg", "RightLowerLeg"}, {"RightLowerLeg", "RightFoot"}
    }

    local R6_Joints = {
        {"Head", "Torso"}, {"Torso", "Left Arm"}, {"Torso", "Right Arm"},
        {"Torso", "Left Leg"}, {"Torso", "Right Leg"}
    }

    local function getLines(count)
        for i = #lines + 1, count do lines[i] = createLine() end
        for i = count + 1, #lines do lines[i].Visible = false end
        return lines
    end

    connection = RunService.RenderStepped:Connect(function()
        local char = player.Character
        local humanoid = char and char:FindFirstChildOfClass("Humanoid")
        
        if char and humanoid then
            local joints = (humanoid.RigType == Enum.HumanoidRigType.R15) and R15_Joints or R6_Joints
            local currentLines = getLines(#joints)

            for i, pair in ipairs(joints) do
                local p1, p2 = char:FindFirstChild(pair[1]), char:FindFirstChild(pair[2])
                if p1 and p2 then
                    local pos1, vis1 = Camera:WorldToViewportPoint(p1.Position)
                    local pos2, vis2 = Camera:WorldToViewportPoint(p2.Position)
                    if vis1 and vis2 then
                        currentLines[i].From = Vector2.new(pos1.X, pos1.Y)
                        currentLines[i].To = Vector2.new(pos2.X, pos2.Y)
                        currentLines[i].Visible = true
                    else
                        currentLines[i].Visible = false
                    end
                else
                    currentLines[i].Visible = false
                end
            end
        else
            for _, l in ipairs(lines) do l.Visible = false end
        end
    end)

    player.AncestryChanged:Connect(function(_, parent)
        if not parent then
            connection:Disconnect()
            for _, l in ipairs(lines) do l:Remove() end
        end
    end)
end

for _, p in pairs(Players:GetPlayers()) do if p ~= LocalPlayer then createSkeleton(p) end end
Players.PlayerAdded:Connect(createSkeleton)