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本帖最后由 飞花落尽 于 2021-9-12 11:27 编辑
- import pygame
- import sys
- from pygame.locals import *
- #初始化pygame
- pygame.init()
- size = width,height = 1000,800
- speed = [-2,1]
- bg = (255,255,255) #RGB白色
- fullscreen = False
- ratio = 1.0
- clock = pygame.time.Clock()
- #创建指定大小窗口 Surface
- #Surface对象就是pygame中用来表示图像的对象
- screen = pygame.display.set_mode(size,RESIZABLE)
- #设置窗口标题
- pygame.display.set_caption('初次见面,请大家多多关照')
- #加载图片 也是Surface对象
- #一个Surface对象不能经过两次加工,否则会很难看
- oturtle = pygame.image.load('turtle.jpeg')
- turtle = oturtle
- oturtle_rect = oturtle.get_rect()
- position = turtle_rect = oturtle_rect
- #获得图片位置矩形
- #position = turtle.get_rect()
- l_head = turtle
- r_head = pygame.transform.flip(turtle,True,False)
- #自动翻转
- while True:
- for event in pygame.event.get():
- if event.type == pygame.QUIT:
- sys.exit()
- if event.type == pygame.KEYDOWN:
- if event.key == K_LEFT:
- turtle = l_head
- speed = [-2,0]
- elif event.key == K_RIGHT:
- turtle = r_head
- speed = [2,0]
- elif event.key == K_UP:
- speed = [0,-1]
- elif event.key == K_DOWN:
- speed = [0,1]
- #全屏a
- if event.key == K_a:
- fullscreen = not fullscreen
- if fullscreen:
- screen = pygame.display.set_mode((3840, 2160),FULLSCREEN | HWSURFACE)
- width,height = 1920,1080
- #改尺寸
- else:
- screen = pygame.display.set_mode(size)
- #放大缩小乌龟(=,-),空格键恢复尺寸
- if event.key == K_EQUALS or event.key == K_MINUS or event.key == K_SPACE:
- if event.key == K_EQUALS and ratio < 2:
- ratio += 0.1
- elif event.key == K_MINUS and ratio >0.5:
- ratio -= 0.1
- elif event.key == K_SPACE:
- ratio = 1.0
- if turtle == l_head:
- turtle = pygame.transform.smoothscale(oturtle,\
- (int(oturtle_rect.width * ratio),\
- int(oturtle_rect.height * ratio)))
- if turtle == r_head:
- oturtle = pygame.transform.flip(oturtle,True,False)
- turtle = pygame.transform.smoothscale(oturtle,\
- (int(oturtle_rect.width * ratio),\
- int(oturtle_rect.height * ratio)))
- #也同时防止变量被污染
- #放大缩小的头重新移动
-
- if event.type == VIDEORESIZE:
- size = event.size
- width,height = size
- print(size)
- screen = pygame.display.set_mode(size,RESIZABLE)
-
- position = position.move(speed)
- #调用rect对象的move方法
- if position.left < 0 or position.right > width:
- turtle = pygame.transform.flip(turtle,True,False)
- #第一个参数是surface对象,第二个是水平翻转,第三个是竖直翻转
- speed[0] = -speed[0]
- if position.top < 0 or position.bottom > height:
- speed[1] = -speed[1]
- #填充背景(看不到乌龟了)
- screen.fill(bg)
- #更新图像,但是每刻都是一个图像(只有像素)
- screen.blit(turtle,position)
- #双缓冲flip更新界面,重要!!!
- pygame.display.flip()
- #延迟10毫秒
- pygame.time.delay(10)
- clock.tick(200)
- #不高于200帧
复制代码
要求是乌龟放大缩小后都不能倒退行走(小甲鱼视频81讲) |
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