Sine Wave window

local RunService = game:FindService("RunService")

local t = 0
local amount = 0
local characters = {"*", "-", "~", ".", "o", "+", "x", "#", "%", "@", "&", "$", "^", "=", "!"}


RunService.RenderStepped:Connect(function()
    local screen = {}
    for i = 1, 1760 do
        screen[i] = " "
    end

    local amplitude = 12
    local frequency = 0.06

    for x = 0, 80*(amount >= 1 and amount or 1) do
        local y = .( + amplitude * .((x + t) * frequency))
         char = characters[(x % #characters) + ]

         offset = -,  
             index = x + (y + offset) * 
             index >   index <= #screen 
                screen[index] = char
            
        
    

     output = {}
     index = , #screen 
        .(output, screen[index])
         index %  ==  
            .(output, )
        
    

    ( .. .(output))
    ( .. .(output))

    t += 
)