KEY_LEFT, KEY_UP, KEY_DOWN, KEY_RIGHT, KEY_ENTER, KEY_ESC, KEY_LEFT_PARENTHESIS, KEY_RIGHT_PARENTHESIS, KEY_4, KEY_5, KEY_6 = 1, 2, 3, 4, 53, 6, 33, 34, 36, 37, 38

from casioplot import set_pixel, show_screen, draw_string as casio_draw_string
SCREEN_WIDTH, SCREEN_HEIGHT, FONT_WIDTH, FONT_HEIGHT = 128, 64, 6, 5

def draw_string(s, x, y, cf, cb=None):
  if cb: fill_rect(x, y, FONT_WIDTH * len(s), FONT_HEIGHT, cb)
  casio_draw_string(x, y, s, cf, "small")

def fill_rect(x, y, w, h, c):
  for k in range(h):
    for j in range(w):
      set_pixel(x + j, y + k, c)

def sleep(d):
#  for k in range(int(d*250000)): # calculator
  for k in range(int(d*20000000)): # simulator
    pass