function love.load()
    love.graphics.setBackgroundColor(255, 255, 255)

    gridXCount = 10
    gridYCount = 18

    inert = {}
    for y = 1, gridYCount do
        inert[y] = {}
        for x = 1, gridXCount do
            inert[y][x] = ' '
        end
    end
end

function love.draw()
    for y = 1, gridYCount do
        for x = 1, gridXCount do
            love.graphics.setColor(.87, .87, .87)
            local blockSize = 20
            local blockDrawSize = blockSize - 1
            love.graphics.rectangle(
                'fill',
                (x - 1) * blockSize,
                (y - 1) * blockSize,
                blockDrawSize,
                blockDrawSize
            )
        end
    end
end