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野良良良猫 发表于 2020-7-30 09:40:23

Python pygame动画精灵问题

在小甲鱼pygame动画精灵那一章，我跟着小甲鱼写代码，但是写完后运行起来十分卡顿，请问这是为什么呢？
代码如下import pygame
import sys
from pygame.locals import *
from random import *

class Ball(pygame.sprite.Sprite):
   
    def __init__(self,image,position,speed,bg_size):
      pygame.sprite.Sprite.__init__(self)
      
      self.image = pygame.image.load(image).convert_alpha()
      self.rect = self.image.get_rect()
      self.rect.left,self.rect.top = position
      self.speed = speed
      self.width,self.height = bg_size,bg_size

    def move(self):
      self.rect = self.rect.move(self.speed)

      if self.rect.right < 0:
            self.rect.left = self.width
            
      if self.rect.left > self.width:
            self.rect.right = 0

      if self.rect.bottom < 0:
            self.rect.top = self.height
            
      if self.rect.top > self.height:
            self.rect.bottom = 0

      


def main():
    pygame.init()

    ball_image = 'W020130917263500532559.png'#素材
    bg_image = '780 (1).png'#素材

    running = True

    bg_size = width,height = 780,520#1024,681
    screen = pygame.display.set_mode(bg_size)
    pygame.display.set_caption('玩球')

    background = pygame.image.load(bg_image).convert_alpha()

    balls = []

    for i in range(5):
      position = randint(0,width-100),randint(0,height-100)
      speed =
      ball = Ball(ball_image,position,speed,bg_size)
      balls.append(ball)

    clock = pygame.time.Clock()
   
    while running:
      for event in pygame.event.get():
            if event.type == QUIT:
                sys.exit()

            screen.blit(background,(0,0))
            for each in balls:
                each.move()
                screen.blit(each.image,each.rect)

            pygame.display.flip()
            clock.tick(10)
            

if __name__ == "__main__":
    main()

zltzlt 发表于 2020-7-30 09:42:35

把 FPS 调大一点试试：

import pygame
import sys
from pygame.locals import *
from random import *

class Ball(pygame.sprite.Sprite):
   
    def __init__(self,image,position,speed,bg_size):
      pygame.sprite.Sprite.__init__(self)
      
      self.image = pygame.image.load(image).convert_alpha()
      self.rect = self.image.get_rect()
      self.rect.left,self.rect.top = position
      self.speed = speed
      self.width,self.height = bg_size,bg_size

    def move(self):
      self.rect = self.rect.move(self.speed)

      if self.rect.right < 0:
            self.rect.left = self.width
            
      if self.rect.left > self.width:
            self.rect.right = 0

      if self.rect.bottom < 0:
            self.rect.top = self.height
            
      if self.rect.top > self.height:
            self.rect.bottom = 0

      


def main():
    pygame.init()

    ball_image = 'W020130917263500532559.png'#素材
    bg_image = '780 (1).png'#素材

    running = True

    bg_size = width,height = 780,520#1024,681
    screen = pygame.display.set_mode(bg_size)
    pygame.display.set_caption('玩球')

    background = pygame.image.load(bg_image).convert_alpha()

    balls = []

    for i in range(5):
      position = randint(0,width-100),randint(0,height-100)
      speed =
      ball = Ball(ball_image,position,speed,bg_size)
      balls.append(ball)

    clock = pygame.time.Clock()
   
    while running:
      for event in pygame.event.get():
            if event.type == QUIT:
                sys.exit()

            screen.blit(background,(0,0))
            for each in balls:
                each.move()
                screen.blit(each.image,each.rect)

            pygame.display.flip()
            clock.tick(60)
            

if __name__ == "__main__":
    main()

野良良良猫 发表于 2020-7-30 09:46:44

我懂了，是缩进的问题，我把screen.blit(background,(0,0))
      for each in balls:
            each.move()
            screen.blit(each.image,each.rect)

      pygame.display.flip()
      clock.tick(10)
这段代码放进了for event in pygame.event.get():里，造成了卡顿

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