pygame躲敌人的游戏

#first.py
# coding=utf-

import pygame

from pygame.locals import *

from sys import exit

from util import *

while True:

  pygame.init()

  screen = pygame.display.set_mode((WIDTH, LENGTH))

  pygame.display.set_caption('be a man')

  star = Star([, ])

  clock = pygame.time.Clock()

  group = pygame.sprite.Group()

  count =

  die = False

  while not die:

    count +=

    if count > :

      count = 

    clock.tick()

    screen.fill([, , ])

    screen.blit(star.image, star.rect)

    enemy_pos = [, ]

    if count %  == :

      enemy_pos[] = randint(, WIDTH)

    elif count %  == :

      enemy_pos[] = randint(, LENGTH)

    elif count %  == :

      enemy_pos = [WIDTH, randint(, LENGTH)]

    elif count %  == :

      enemy_pos = [randint(, WIDTH), LENGTH]

    if enemy_pos != [, ]:

      enemy = Enemy(enemy_pos, star.rect)

      group.add(enemy)

    group.update()

    group.draw(screen)

    star_down = pygame.sprite.spritecollide(star, group, True)

    if len(star_down) > :

      die = True

    pygame.display.update()

    for event in pygame.event.get():

      if event.type == pygame.QUIT:

        pygame.quit()

        exit()

      if event.type == pygame.KEYDOWN:

        if event.key in click:

          click[event.key] = STAR_V

      elif event.type == pygame.KEYUP:

        if event.key in click:

          click[event.key] = 

    star_move(star.rect, star.rect)

# util.py

# coding=utf-

import pygame

from pygame.locals import *

from random import *

from math import sqrt

WIDTH =

LENGTH = 

STAR_V = 2.5

click = {pygame.K_LEFT:, pygame.K_RIGHT:, pygame.K_UP:, pygame.K_DOWN:}

ENEMY_SPEED_MIN =

ENEMY_SPEED_MAX = 

class Star(pygame.sprite.Sprite):

  def __init__(self, pos):

    pygame.sprite.Sprite.__init__(self)

    self.image = pygame.Surface([, ])

    self.image.fill((, , ))

    self.rect = self.image.get_rect()

    self.rect.topleft = pos

class Enemy(pygame.sprite.Sprite):

  def __init__(self, enemy_pos, star_pos):

    pygame.sprite.Sprite.__init__(self)

    self.image = pygame.Surface([, ])

    self.image.fill((, , ))

    self.rect = self.image.get_rect()  # 只是图片的大小

    self.rect.topleft = enemy_pos  # 这才是图片的位置

    v = uniform(ENEMY_SPEED_MIN, ENEMY_SPEED_MAX)

    self.v = v

    var = sqrt((v ** ) / ((star_pos[] - enemy_pos[]) **  + (star_pos[] - enemy_pos[]) ** ))

    x = (star_pos[] - enemy_pos[]) * var

    y = (star_pos[] - enemy_pos[]) * var

    self.v_x = x

    self.v_y = y

  def update(self):

    if self.v == :

      print self

    self.rect.left += self.v_x

    self.rect.top += self.v_y

    if self.rect.left >= WIDTH or self.rect.left <=  or self.rect.top >= LENGTH or self.rect.top <= :

      self.kill()

def star_move(star_pos, star_rect):

  star_x = star_pos[] + click[pygame.K_RIGHT] - click[pygame.K_LEFT]

  star_y = star_pos[] + click[pygame.K_DOWN] - click[pygame.K_UP]

  if star_x < :

    star_pos[] =

  elif star_x > WIDTH - star_rect.width:

    star_pos[] = WIDTH - star_rect.width

  else:

    star_pos[] = star_x

  if star_y < :

    star_pos[] =

  elif star_y > LENGTH - star_rect.height:

    star_pos[] = LENGTH - star_rect.height

  else:

    star_pos[] = star_y