python的CPU使用率在Windows 10中变为0

如何解决python的CPU使用率在Windows 10中变为0

我正在编写一个关于飞扬的鸟类整洁 AI 游戏的教程，我尝试运行到目前为止我所拥有的，但是当我的 pygame 窗口启动时，它只能工作一秒钟，然后它冻结。我检查了任务管理器，看起来在循环开始时它获得了 36% 的 cpu，但之后它下降到 0%。有没有办法对 python 任务进行优先级排序，使其获得连续的 cpu？

这是我试图运行的代码。

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"))),"bird3.png")))
]
PIPE_IMG = pygame.transform.scale2x(pygame.image.load(os.path.join("imgs","pipe.png")))
BG_IMG = pygame.transform.scale2x(pygame.image.load(os.path.join("imgs","bg.png")))
BASE_IMG = pygame.transform.scale2x(pygame.image.load(os.path.join("imgs","base.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)


def draw_window(win,bird):
    win.blit(BG_IMG,(0,0))
    bird.draw(win)    
    pygame.display.update()

def main():
    bird = Bird(200,200)
    win = pygame.display.set_mode((WIN_WIDTH,WIN_HEIGHT))
    run = True
    clock = pygame.time.Clock()
    while run:
        clock.tick(30)
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                run = False
            bird.move()
            draw_window(win,bird)
    pygame.quit()
    quit()
            

if __name__ == "__main__":
    main()

我使用 python main.py

执行它

解决方法

这是{{3}}的问题。您必须在应用程序循环而不是事件循环中移动小鸟并更新游戏。事件循环仅在事件发生时执行，但应用循环在每一帧中执行。

# With offset as `0`,behaves as normal list
>>> offset_list = OffsetList(0,[10,20,30,40,50,60])
>>> offset_list[0]
10

# With offset as `1`,returns index+1
>>> offset_list = OffsetList(1,60])
>>> offset_list[0]
20

# With offset as `2`,returns index+2
>>> offset_list = OffsetList(2,60])
>>> offset_list[0]
30

# Slicing support,with `start` as start+offset and `end` as end+offset
>>> offset_list[1:]
[40,60]

# Assigning new value,based on index+offset
>>> offset_list[0] = 123
>>> offset_list
[10,123,60]

# Deleting value based on index+offset
>>> del offset_list[0]
>>> offset_list
[10,60]