Love2d perlin noise

local grid = {}

local function generateNoiseGrid()
    -- Fill each tile in our grid with noise.
    local baseX = 10000 * love.math.random()
    local baseY = 10000 * love.math.random()
    for y = 1, 120 do
        grid[y] = {}
        for x = 1, 124 do
            grid[y][x] = love.math.noise(baseX+.1*x, baseY+.2*y)
        end
    end
end

function love.load()
    generateNoiseGrid()
end

function love.keypressed()
    generateNoiseGrid()
end

function love.draw()
    local tileSize = 8
    for y = 1, #grid do
        for x = 1, #grid[y] do
      if grid[y][x] <= 0.2 then
        love.graphics.setColor(43/255, 57/255, 232/255, 1)
      elseif grid[y][x] > 0.2 and grid[y][x] <= 0.4 then
        love.graphics.setColor(226/255, 243/255, 98/255, 1)
      else
        love.graphics.setColor(55/255, 195/255, 55/255, 1)
      end
      love.graphics.rectangle("fill", x*tileSize, y*tileSize, tileSize-1, tileSize-1)
        end
    end
end