e

-- Attach to monitor on the right
local monitor = peripheral.wrap("right")
if not monitor then
    error("Monitor not found on the right side.")
end

-- Setup monitor
monitor.setTextScale(0.5) -- Smaller text = more space
term.redirect(monitor)
monitor.clear()

-- Configuration
local width, height = monitor.getSize()
local delay = 0.2
local alive = "O"
local dead = " "

-- Create grid
local function createGrid()
    local grid = {}
    for y = 1, height do
        grid[y] = {}
        for x = 1, width do
            grid[y][x] = math.random() < 0.2 and 1 or 0
        end
    end
    return grid
end

-- Count live neighbors
local function countNeighbors(grid, x, y)
    local count = 0
    for dy = -1, 1 do
        for dx = -1, 1 do
            if not (dx == 0 and dy == 0) then
                local nx, ny = x + dx, y + dy
                if nx >= 1 and nx <= width and ny >= 1 and ny <= height then
                    count = count + grid[ny][nx]
                end
            end
        end
    end
    return count
end

-- Update the grid
local function updateGrid(grid)
    local newGrid = {}
    for y = 1, height do
        newGrid[y] = {}
        for x = 1, width do
            local neighbors = countNeighbors(grid, x, y)
            local cell = grid[y][x]
            if cell == 1 then
                newGrid[y][x] = (neighbors == 2 or neighbors == 3) and 1 or 0
            else
                newGrid[y][x] = (neighbors == 3) and 1 or 0
            end
        end
    end
    return newGrid
end

-- Check if all cells are dead
local function isAllDead(grid)
    for y = 1, height do
        for x = 1, width do
            if grid[y][x] == 1 then
                return false
            end
        end
    end
    return true
end

-- Draw the grid
local function drawGrid(grid)
    monitor.setCursorPos(1,1)
    for y = 1, height do
        for x = 1, width do
            monitor.write(grid[y][x] == 1 and alive or dead)
        end
    end
end

-- Main loop
while true do
    local grid = createGrid()
    while true do
        drawGrid(grid)
        sleep(delay)
        grid = updateGrid(grid)
        if isAllDead(grid) then
            monitor.clear()
            monitor.setCursorPos(1, 1)
            monitor.write("All cells died. Restarting...")
            sleep(1)
            monitor.clear()
            break
        end
    end
end