Conway's Game of Life for ROBLOX

local settings={
sizeX=50;
sizeY=50;
squareSizeX=10;
squareSizeY=10;
delay=.1;
}

local player=game:GetService"Players".LocalPlayer



local gui=Instance.new"ScreenGui"
gui.Parent=player.PlayerGui
gui.Name="Conway's Game of Life"

local guiRef={}
local board={}
local preboard={}
local mouse=player:GetMouse()

running=false
bdown=false
setVal=true
mouse.KeyDown:connect(function(key)
    if key==" " then
        running=not running
    elseif key=="c" then
        running=false
        for x=0, settings.sizeX do
            for y=0, settings.sizeY do
                board[x][y]=false
                preboard[x][y]=false
            end
        end
        updateScreen()
    end
end)

mouse.Button1Down:connect(function()
    bdown=true
end)

mouse.Button1Up:connect(function()
    bdown=false
end)

for x=0, settings.sizeX do
    guiRef[x]={}
    board[x]={}
    preboard[x]={}
    for y=0, settings.sizeY do
        board[x][y]=false
        preboard[x][y]=false
        local frame=Instance.new"Frame"
        frame.Parent=gui
        frame.Name="{"..settings.sizeX..", "..settings.sizeY.."}"
        frame.Size=UDim2.new(0, settings.squareSizeX, 0, settings.squareSizeY)
        frame.Position=UDim2.new(0, settings.squareSizeX*x, 0, settings.squareSizeY*y)
        frame.BorderSizePixel=0
        frame.InputBegan:connect(function(iobject)
            if iobject.UserInputType==Enum.UserInputType.MouseButton1 then
                setVal=not board[x][y]
                board[x][y]=not board[x][y]
                preboard[x][y]=not preboard[x][y]
                updateScreen()
            end
        end)
        --[[frame.InputBegan:connect(function(iobject)
            if iobject.UserInputType==Enum.UserInputType.MouseButton1 then
                board[x][y]=not board[x][y]
                preboard[x][y]=not preboard[x][y]
                updateScreen()
            end

         end)]]

        frame.MouseEnter:connect(function()
            if bdown then
                board[x][y]=setVal
                preboard[x][y]=setVal
                updateScreen()
            end
        end)

        guiRef[x][y]=frame
    end
end

function cloneBoard()
    for x=0, settings.sizeX do
        for y=0, settings.sizeY do
            preboard[x][y]=board[x][y]
        end
    end
end

function updateScreen()
    for x=0, settings.sizeX do
        for y=0, settings.sizeY do
            guiRef[x][y].BackgroundColor3=board[x][y]==true and Color3.new(0, 0, 0) or Color3.new(1, 1, 1)
        end
    end
end

function doCycle()
    --[[
        1. Any live cell with fewer than two live neighbours dies, as if caused by under-population.
        2. Any live cell with two or three live neighbours lives on to the next generation.
        3. Any live cell with more than three live neighbours dies, as if by overcrowding.
        4. Any dead cell with exactly three live neighbours becomes a live cell, as if by reproduction.
    --]]
    cloneBoard()
    for x=0, settings.sizeX do
        for y=0, settings.sizeY do
            local n=0
            for tx=x-1, x+1 do
                for ty=y-1, y+1 do
                    if (ty~=y or tx~=x) and ((tx>=0 and ty>=0) and (tx<=settings.sizeX and ty<=settings.sizeY)) and preboard[tx][ty] then
                        --neighbor
                        n=n+1
                    end
                end
            end
            local state=preboard[x][y]
            --[[
                n < 2 --> die
                n -> {2, 3} --> live
                n > 3 --> die
                n == 3 && dead --> become alive
            --]]
            if state and n<2 or n>3 then
                board[x][y]=false
            elseif not state and n==3 then
                board[x][y]=true
            end
        end
    end
end




workspace.CurrentCamera.CameraType=Enum.CameraType.Custom
repeat coroutine.yield() until player.Character
player.Character:Destroy()

while true do
coroutine.yield()
while running do
doCycle()
updateScreen()
wait(settings.delay)
end
end