用Python和Pygame写游戏-从入门到精通（8）Move

最新推荐文章于 2025-06-05 18:56:01 发布

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最新推荐文章于 2025-06-05 18:56:01 发布

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分类专栏： pygame 文章标签： pygame python

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本文通过使用Python的Pygame库实现了一个简单的移动精灵示例。该示例中，一个图片精灵会在窗口内沿X轴和Y轴方向移动，并在碰到窗口边界时改变移动方向。文章展示了如何加载背景图片和精灵图片，以及如何设置Pygame窗口和控制精灵的移动。

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1、Move

background_image_filename = 'sushiplate.jpg'
sprite_image_filename = 'fugu.png'

import pygame
from pygame.locals import *
from sys import exit

pygame.init()
close = False
screen = pygame.display.set_mode((640, 480), 0, 32)

background = pygame.image.load(background_image_filename).convert()
sprite = pygame.image.load(sprite_image_filename).convert_alpha()

clock = pygame.time.Clock()

x, y = 100., 100.
speed_x, speed_y = 133., 170.

while True:

    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            exit
            close = True

    screen.blit(background, (0,0))
    screen.blit(sprite, (x, y))

    time_passed = clock.tick(30)
    time_passed_seconds = time_passed / 1000.0

    x += speed_x * time_passed_seconds
    y += speed_y * time_passed_seconds    

    # 到达边界则把速度反向
    if x > 640 - sprite.get_width():
        speed_x = -speed_x
        x = 640 - sprite.get_width()
    elif x < 0:
        speed_x = -speed_x
        x = 0.

    if y > 480 - sprite.get_height():
        speed_y = -speed_y
        y = 480 - sprite.get_height()
    elif y < 0:
        speed_y = -speed_y
        y = 0
    
    if close == True:
        break

    pygame.display.update()