【pygame游戏编程】第二篇-----移动图像

Learning From Here

import pygame

import sys

pygame.init()

screen_width = 640

screen_high = 480

screen = pygame.display.set_mode((screen_width, screen_high))

screen_rect = screen.get_rect()

pygame.display.set_caption("Moving Fish")

background_image_filename = 'sushiplate.png'

mouse_image_fliename = 'fugu.png'

background_image = pygame.image.load(background_image_filename).convert()

mouse_image = pygame.image.load(mouse_image_fliename).convert_alpha()

mouse_image_rect = mouse_image.get_rect()

clock = pygame.time.Clock()

while True:

    #限制每秒循环100次，防止大量占用cpu

    clock.tick(100)

    for event in pygame.event.get():

        if event.type == pygame.QUIT:

            pygame.quit()

            sys.exit()

        if event.type == pygame.KEYDOWN:

            if event.key == pygame.K_ESCAPE:

                pygame.quit()

                sys.exit()

    screen.blit(background_image, (0, 0))

    #获取鼠标位置

    x, y = pygame.mouse.get_pos()

    mouse_image_rect.center = (x, y)

    #设置图片移动边界

    if mouse_image_rect.left < 0:

        mouse_image_rect.left = 0

    if mouse_image_rect.right > screen_rect.right:

        mouse_image_rect.right = screen_rect.right

    if mouse_image_rect.top < 0:

        mouse_image_rect.top = 0

    if mouse_image_rect.bottom > screen_rect.bottom:

        mouse_image_rect.bottom = screen_rect.bottom

    screen.blit(mouse_image, mouse_image_rect)

    pygame.display.update()

运行截图：

本次使用的两张图片资源：

背景：sushiplate.jpg

光标：fugu.png