I have coded so far almost the whole Flappy Bird game but the bird, the ground and pipes start "flashing" sometimes. Normally the bird and the ground flash at the same time, when the pipes flash at a different time than the other objects, and sometimes when you have two pipes on the screen, one is flashing but the other is not. I think that it's propably because I have a really old low-end PC, but still, is there any way to solve this issue? The game's code is this:
import pygame
import neat
import time
import os
import random
WIN_WIDTH = 500
WIN_HEIGHT = 800
BIRD_IMGS = [pygame.transform.scale2x(pygame.image.load(os.path.join('imgs', 'bird1.png'))), pygame.transform.scale2x(pygame.image.load(os.path.join('imgs', 'bird2.png'))), pygame.transform.scale2x(pygame.image.load(os.path.join('imgs', 'bird3.png')))]
PIPE_IMG = pygame.transform.scale2x(pygame.image.load(os.path.join('imgs', 'pipe.png')))
BASE_IMG = pygame.transform.scale2x(pygame.image.load(os.path.join('imgs', 'base.png')))
BG_IMG = pygame.transform.scale2x(pygame.image.load(os.path.join('imgs', 'bg.png')))
class Bird:
IMGS = BIRD_IMGS
MAX_ROTATION = 25
ROT_VEL = 20
ANIMATION_TIME = 5
def __init__(self, x, y):
self.x = x
self.y = y
self.tilt = 0
self.tick_count = 0
self.vel = 0
self.height = self.y
self.img_count = 0
self.img = self.IMGS[0]
def jump(self):
self.vel = -10.5
self.tick_count = 0
self.height = self.y
def move(self):
self.tick_count += 1
d = self.vel * self.tick_count + 1.5 * self.tick_count ** 2
if d >= 16:
d = 16
if d < 0:
d -= 2
self.y = self.y + d
if d < 0 or self.y < self.height + 50:
if self.tilt < self.MAX_ROTATION:
self.tilt = self.MAX_ROTATION
else:
if self.tilt > -90:
self.tilt -= self.ROT_VEL
def draw(self, win):
self.img_count += 1
if self.img_count < self.ANIMATION_TIME:
self.img = self.IMGS[0]
elif self.img_count < self.ANIMATION_TIME*2:
self.img = self.IMGS[1]
elif self.img_count < self.ANIMATION_TIME*3:
self.img = self.IMGS[2]
elif self.img_count < self.ANIMATION_TIME*4:
self.img = self.IMGS[1]
elif self.img_count == self.ANIMATION_TIME*4 + 1:
self.img = self.IMGS[0]
self.img_count = 0
if self.tilt <= -80:
self.img = self.IMGS[1]
self.img_count = self.ANIMATION_TIME*2
rotated_image = pygame.transform.rotate(self.img, self.tilt)
new_rect = rotated_image.get_rect(center=self.img.get_rect(topleft = (self.x, self.y)).center)
win.blit(rotated_image, new_rect.topleft)
def get_mask(self):
return pygame.mask.from_surface(self.img)
class Pipe:
GAP = 200
VEL = 5
def __init__(self, x):
self.x = x
self.height = 0
self.top = 0
self.bottom = 0
self.PIPE_TOP = pygame.transform.flip(PIPE_IMG, False, True)
self.PIPE_BOTTOM = PIPE_IMG
self.passed = False
self.set_height()
def set_height(self):
self.height = random.randrange(50, 450)
self.top = self.height - self.PIPE_TOP.get_height()
self.bottom = self.height + self.GAP
def move(self):
self.x -= self.VEL
def draw(self, win):
win.blit(self.PIPE_TOP, (self.x, self.top))
win.blit(self.PIPE_BOTTOM, (self.x, self.bottom))
def collide(self, bird):
bird_mask = bird.get_mask()
top_mask = pygame.mask.from_surface(self.PIPE_TOP)
bottom_mask = pygame.mask.from_surface(self.PIPE_BOTTOM)
top_offset = (self.x - bird.x, self.top - round(bird.y))
bottom_offset = (self.x - bird.x, self.bottom - round(bird.y))
b_point = bird_mask.overlap(bottom_mask, bottom_offset)
t_point = bird_mask.overlap(top_mask, top_offset)
if t_point or b_point:
return True
return False
class Base:
VEL = 5
WIDTH = BASE_IMG.get_width()
IMG = BASE_IMG
def __init__(self, y):
self.y = y
self.x1 = 0
self.x2 = self.WIDTH
def move(self):
self.x1 -= self.VEL
self.x2 -= self.VEL
if self.x1 + self.WIDTH < 0:
self.x1 = self.x2 + self.WIDTH
if self.x2 + self.WIDTH < 0:
self.x2 = self.x1 + self.WIDTH
def draw(self, win):
win.blit(self.IMG, (self.x1, self.y))
win.blit(self.IMG, (self.x2, self.y))
def draw_window(win, bird, pipes, base):
win.blit(BG_IMG, (0, 0))
for pipe in pipes:
pipe.draw(win)
pygame.display.update()
base.draw(win)
bird.draw(win)
pygame.display.update()
def main():
bird = Bird(230, 350)
base = Base(730)
pipes = [Pipe(600)]
win = pygame.display.set_mode((WIN_WIDTH, WIN_HEIGHT))
clock = pygame.time.Clock()
score = 0
run = True
while run:
clock.tick(30)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
#bird.move()
add_pipe = False
rem = []
for pipe in pipes:
if pipe.collide(bird):
pass
if pipe.x + pipe.PIPE_TOP.get_width() < 0:
rem.append(pipe)
if not pipe.passed and pipe.x < bird.x:
pipe.passed = True
add_pipe = True
pipe.move()
if add_pipe:
score += 1
pipes.append(Pipe(600))
for r in rem:
pipes.remove(r)
if bird.y + bird.img.get_height() >= 730:
pass
base.move()
draw_window(win, bird, pipes, base)
pygame.quit()
quit()
main()
It might be because of this
for pipe in pipes:
pipe.draw(win)
pygame.display.update()
base.draw(win)
bird.draw(win)
pygame.display.update()
You are updating the screen after your draw each pipe, and then after you draw the bird and base. This will be the problem. you only want to update the screen once per frame. So change it so this
for pipe in pipes:
pipe.draw(win)
base.draw(win)
bird.draw(win)
pygame.display.update()