Arquivos
bci-course/lab5/stimulus_one.py
Pierre Karashchuk bedfe44e7c update code
2017-03-07 16:59:38 -08:00

94 linhas
1.5 KiB
Python
Arquivo Executável

#!/usr/bin/env python2
import pygame
import platform
import time
from pygame.locals import *
freq = 20
stimulus = 0
wait_time = 0
fullscreen_on = False
size = 1280,800
width, height = size
white = 255,255,255
black = 0,0,0
red = 255,0,0
green = 0,255,0
blue = 0,0,255
chartreuse = 127,255,0
light_green = 131,255,100
nice_red = 207,45,64
sky_blue = 100,244,255
nice_blue = 0,194,255
dark_gray = 20,20,20
space_x = 100
space_y = 100
rect_width = width - space_x*2
rect_height = height - space_y*2
rect_xs = space_x
rect_ys = space_y
if fullscreen_on:
screen = pygame.display.set_mode(size, FULLSCREEN)
else:
screen = pygame.display.set_mode(size)
if platform.system() == 'Windows':
wallclock = time.clock
else:
wallclock = time.time
pygame.mouse.set_visible(False)
def check_for_escape():
event = pygame.event.poll()
if event.type == 0:
return
elif event.dict.get('key', -1) == K_ESCAPE:
pygame.quit()
exit()
def draw_stimuli():
screen.fill(black)
s, x, y = stimulus, rect_xs, rect_ys
if s == 0:
col = black
else:
col = white
rect = ((x, y), (rect_width, rect_height))
screen.fill(col, rect)
pygame.display.flip()
to_wait = 0
while True:
t = time.time()
check_for_escape()
draw_stimuli()
if wait_time <= 1e-5:
stimulus = 1 - stimulus
wait_time = 1.0/freq
to_wait = 0.005
time.sleep(to_wait)
wait_time -= time.time() - t