不得不承認《Python游戲編程入門》這本書翻譯、排版非常之爛,但是里面的demo還是很好的,之前做了些改編放到這里。
先是素材:
背景

精靈

所有素材均取自此書
接下來就是精靈類的創(chuàng)建了:
class MySprite(pygame.sprite.Sprite): def __init__(self, target): pygame.sprite.Sprite.__init__(self) self.master_image = None self.frame = 0 self.old_frame = -1 self.frame_width = 1 self.frame_height = 1 self.first_frame = 0 self.last_frame = 0 self.columns = 1 self.last_time = 0 # 使用property方法,讓精靈類對坐標操作更方便 def _getx(self): return self.rect.x def _setx(self, value): self.rect.x = value X = property(_getx, _setx) def _gety(self): return self.rect.y def _sety(self, value): self.rect.y = value Y = property(_gety, _sety) def _getpos(self): return self.rect.topleft def _setpos(self, pos): self.rect.topleft = pos position = property(_getpos, _setpos) # load方法中定義了圖片位置,長寬和幀的列數,由此來將素材切成一幀一幀 def load(self, filename, width, height, columns): self.master_image = pygame.image.load(filename).convert_alpha() self.frame_width = width self.frame_height = height self.rect = Rect(0, 0, width, height) self.columns = columns rect = self.master_image.get_rect() self.last_frame = (rect.width // width) * (rect.height // height) - 1 def update(self, current_time, rate=30): # 更新幀數 if current_time > self.last_time + rate: self.frame += 1 if self.frame > self.last_frame: self.frame = self.first_frame self.last_time = current_time # 當幀數發(fā)生改變時,創(chuàng)建新的圖片 if self.frame != self.old_frame: frame_x = (self.frame % self.columns) * self.frame_width frame_y = (self.frame // self.columns) * self.frame_height rect = Rect(frame_x, frame_y, self.frame_width, self.frame_height) self.image = self.master_image.subsurface(rect) self.old_frame = self.frame
將精靈類“放置”到游戲屏幕上,并加上背景
pygame.init()screen = pygame.display.set_mode((800, 600))font = pygame.font.Font(None, 24)framerate = pygame.time.Clock()bg = pygame.image.load("background.png").convert_alpha()pl = pygame.image.load('caveman.png').convert_alpha()# 創(chuàng)建精靈組group = pygame.sprite.Group()player = MySprite(screen)player.load("caveman.png", 50, 64, 8)player.first_frame = 1player.last_frame = 7player.position = 400, 303group.add(player)while True:  for event in pygame.event.get():    if event.type == QUIT:      sys.exit()  #  設置幀數  framerate.tick(30)  ticks = pygame.time.get_ticks()            
新聞熱點
疑難解答