# casioplot.py
import pygame

pygame.init()
SCREEN_WIDTH = 384
SCREEN_HEIGHT = 192
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))

draw_string = print
def set_pixel(x, y, color):
    pygame.draw.rect(screen, color, pygame.Rect(x, y, 1, 1))
def get_pixel(x, y):
    if x >= SCREEN_WIDTH or y >= SCREEN_HEIGHT or x < 0 or y < 0:
        return None
    return screen.get_at((x, y))[:2]
def clear_screen():
    screen.fill((255,255,255))
    show_screen()
def show_screen():
    pygame.display.flip()