def setup
  rectMode(CORNERS)
  ellipseMode(CORNERS)
  @sel = createSelect
  @sel.position(0, 105)
  @sel.option('rect', '矩形')    # value, label
  @sel.option('ellipse', '円')
  @sel.option('line', '直線')
  @sel.selected('circle')
  @radio = createRadio
  @radio.position(55, 105)
  @radio.option('red', '赤')     # value, label
  @radio.option('green', '緑')
  @radio.option('blue', '青')
  @radio.vertical
  @radio.selected('green')
end

def draw
  background(220)
  strokeWeight(5)
  stroke(@radio.value)
  case @sel.value
  when 'rect'
    rect(15, 15, 85, 85)
  when 'ellipse'
    ellipse(15, 15, 85, 85)
  when 'line'
    line(15, 15, 85, 85)
  end
end