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35 lines
1.4 KiB
35 lines
1.4 KiB
6 months ago
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import pygame
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from .. import tools,setup
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from .. import constants as C
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class FlashingCoin(pygame.sprite.Sprite): # 继承pygame精灵类
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def __init__(self):
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pygame.sprite.Sprite.__init__(self)
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self.frames = []
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self.frame_index = 0
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frame_rects = [(1,160,5,8),(9,160,5,8),(17,160,5,8),(9,160,5,8)] # 闪烁
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self.load_frames(frame_rects)
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self.image = self.frames[self.frame_index] # 使用图片第一帧数
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self.rect = self.image.get_rect()
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self.rect.x = 280
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self.rect.y = 58
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self.timer = 0 # 随游戏切换金币帧
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def load_frames(self,frame_rects):
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sheet = setup.GRAPHICS['item_objects']
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for frame_rect in frame_rects:
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self.frames.append(tools.get_image(sheet,*frame_rect,(0,0,0), C.BG_MULTI))
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def update(self):
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self.current_time = pygame.time.get_ticks()
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frame_durations = [375,125,125,125] # 每图片帧数时间
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if self.timer == 0:
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self.timer = self.current_time # 如果初始时间为零改为当前时间
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elif self.current_time - self.timer > frame_durations[self.frame_index]: # 此时时间-计时器时间>所在帧应有时间间隔
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self.frame_index += 1
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self.frame_index %= 4
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self.timer = self.current_time # 没交换一次计时器时间调成当下时间
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self.image = self.frames[self.frame_index]
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