Using Ruby Time in JRubyArt

attr_reader :hue

def settings
  full_screen
  # pixel_density(2) # for hidpi displays only
end

def setup
  text_size(height / 5)
  text_align(CENTER)
  color_mode(HSB, 360, 1, 1)
  @hue = Time.now.yday % 360 # Using ruby Time it is so easy
end

def draw
  background(0)
  fill(hue, 1, 1) # hue depends on day of year when started
  text('Hola Mundo!', width / 2, height / 2)
end

def settings
  full_screen
  # pixel_density(2) # for hidpi displays only
end

def setup
  text_size(height / 5)
  text_align(CENTER)
  color_mode(HSB, 360, 1, 1)  
end

def draw
  hue = (Time.now.sec % 18) * 20 # Using ruby Time is so easy
  background(0)
  fill(hue, 1, 1) # 18 different hues depends on sec
  text('Hola Mundo!', width / 2, height / 2)
end

WEEKEND ||= 'Yes' # define WEEKEND unless defined already
WEEKDAY ||= 'No'  # use this form when 'watch'-ing a sketch
attr_reader :weekend

def settings
  size 200, 150
end

def setup
  sketch_title 'Weekend?'
  @weekend = weekend? ? WEEKEND : WEEKDAY
  text_size(48)
  text_align(CENTER)
end

def draw
  background(0)
  fill(200)
  text(weekend, width / 2, height / 2)
end

# for atheists and christians, jews and muslims can agree to disagree
# mais aussi Ministère de la Culture France traditionnellement n'est-ce pas?
# a method that returns a boolean (substitute friday? for sunday? whatever!!)
def weekend?
  t = Time.now
  (t.saturday? || t.sunday?) # no need for explicit return in ruby
end