第二周第二次作业
12-1蓝色天空
代码：
import pygame
import sys
pygame.init()
screen = pygame.display.set_mode((1280,720))
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
screen.fill((0,0,255))
pygame.display.flip()
输出结果：
12-2游戏角色：
代码：
import pygame
import sys
pygame.init()
screen = pygame.display.set_mode((1280,720))
bg_image = pygame.image.load("bg.png")
my_role = pygame.image.load("role.png")
screen_rect = screen.get_rect()
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
screen.blit(bg_image,screen_rect)
screen.blit(my_role, (int(screen.get_width() / 2), int(screen.get_height() / 2)))
pygame.display.flip()
输出结果：
12-3火箭：
代码：
import pygame
import sys
pygame.init()
screen = pygame.display.set_mode((1280,720))
bg_color = (0, 0, 255)
my_role = pygame.image.load("role.png")
screen_rect = screen.get_rect()
class Rocket():
"""创建一个小火箭"""
def __init__(self,screen):
self.screen = screen
self.screen_height = screen.get_height()
self.screen_width = screen.get_width()
self.my_role = pygame.image.load("role.png")
self.rect = self.my_role.get_rect()
self.x = float(self.screen_width / 2)
self.y = float(self.screen_height / 2)
self.rect.centerx = self.x
self.rect.centery = self.y
self.moving_right = False
self.moving_left = False
self.moving_up = False
self.moving_down = False
def update(self):
if self.moving_right and self.rect.right < self.screen_width:
self.x += 3
if self.moving_left and self.rect.left > 0 :
self.x -= 3
if self.moving_down and self.rect.bottom < self.screen_height:
self.y += 3
if self.moving_up and self.rect.top > 0 :
self.y -= 3
self.rect.centerx = self.x
self.rect.centery = self.y
def biltme(self):
self.screen.blit(self.my_role, self.rect)
def check_keydown_events(event, r):
if event.key == pygame.K_RIGHT:
#向右移动飞船
r.moving_right = True
elif event.key == pygame.K_LEFT:
#向左移动飞船
r.moving_left = True
elif event.key == pygame.K_UP:
#向上移动飞船
r.moving_up = True
elif event.key == pygame.K_DOWN:
#向下移动飞船
r.moving_down = True
#按下q的时候结束游戏
if event.key == pygame.K_q:
sys.exit()
def check_keyup_events(event,r):
if event.key == pygame.K_RIGHT:
r.moving_right = False
elif event.key == pygame.K_LEFT:
r.moving_left = False
elif event.key == pygame.K_UP:
r.moving_up= False
elif event.key == pygame.K_DOWN:
r.moving_down = False
def check_events(r ):
"""响应按键和鼠标事件"""
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.KEYDOWN:
check_keydown_events(event, r)
elif event.type == pygame.KEYUP:
check_keyup_events(event,r)
#创建小火煎
r = Rocket(screen)
while True:
check_events(r)
screen.fill(bg_color)
r.update()
r.biltme()
pygame.display.flip()
输出结果：
初始位置：
移动后：