function: getClosestPlayerToCursor()

local localPlayer = game:GetService("Players").LocalPlayer
local currentCamera = game:GetService("Workspace").CurrentCamera
local mouse = localPlayer:GetMouse()

function getClosestPlayerToCursor()
    local closestPlayer = nil
    local shortestDistance = math.huge

    for i, v in pairs(game:GetService("Players"):GetPlayers()) do
        if v ~= localPlayer and v.Character and v.Character:FindFirstChildOfClass("Humanoid") and v.Character:FindFirstChildOfClass("Humanoid").Health ~= 0 and v.Character:FindFirstChild("Head") and v.TeamColor ~= game:GetService("Players").LocalPlayer.TeamColor then
            local pos = currentCamera:WorldToViewportPoint(v.Character.Head.Position)
            local magnitude = (Vector2.new(pos.X, pos.Y) - Vector2.new(mouse.X, mouse.Y)).magnitude

            if magnitude < shortestDistance then
                closestPlayer = v
                shortestDistance = magnitude
            end
        end
    end

    return closestPlayer
end

hookfunction(workspace.FindPartOnRayWithIgnoreList, function(...)
    if getClosestPlayerToCursor() then
        local closest = getClosestPlayerToCursor().Character.Head
        return closest, closest.Position, Vector3.new(0, 0, 0), closest.Material
    end
end)