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94 lines
2.6 KiB
94 lines
2.6 KiB
'''
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定义一个：小恐龙类
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'''
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import pygame
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'''小恐龙'''
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class Dinosaur(pygame.sprite.Sprite):
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def __init__(self, imagepaths, position=(40, 147), size=[(44, 47), (59, 47)], **kwargs):
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pygame.sprite.Sprite.__init__(self)
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# 导入所有图片
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self.images = []
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image = pygame.image.load(imagepaths[0])
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for i in range(5):
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self.images.append(pygame.transform.scale(image.subsurface((i*88, 0), (88, 95)), size[0]))
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image = pygame.image.load(imagepaths[1])
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for i in range(2):
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self.images.append(pygame.transform.scale(image.subsurface((i*118, 0), (118, 95)), size[1]))
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self.image_idx = 0
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self.image = self.images[self.image_idx]
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self.rect = self.image.get_rect()
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self.rect.left, self.rect.bottom = position
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self.mask = pygame.mask.from_surface(self.image)
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# 定义一些必要的变量
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self.init_position = position
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self.refresh_rate = 5
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self.refresh_counter = 0
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self.speed = 11.5
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self.gravity = 0.6
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self.is_jumping = False
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self.is_ducking = False
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self.is_dead = False
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self.movement = [0, 0]
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'''跳跃'''
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def jump(self, sounds):
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if self.is_dead or self.is_jumping:
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return
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sounds['jump'].play()
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self.is_jumping = True
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self.movement[1] = -1*self.speed
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'''低头'''
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def duck(self):
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if self.is_jumping or self.is_dead:
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return
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self.is_ducking = True
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'''不低头'''
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def unduck(self):
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self.is_ducking = False
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'''死掉了'''
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def die(self, sounds):
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if self.is_dead:
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return
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sounds['die'].play()
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self.is_dead = True
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'''将恐龙画到屏幕'''
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def draw(self, screen):
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screen.blit(self.image, self.rect)
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'''载入当前状态的图片'''
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def loadImage(self):
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self.image = self.images[self.image_idx]
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rect = self.image.get_rect()
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rect.left, rect.top = self.rect.left, self.rect.top
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self.rect = rect
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self.mask = pygame.mask.from_surface(self.image)
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'''更新小恐龙'''
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def update(self):
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if self.is_dead:
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self.image_idx = 4
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self.loadImage()
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return
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if self.is_jumping:
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self.movement[1] += self.gravity
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self.image_idx = 0
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self.loadImage()
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self.rect = self.rect.move(self.movement)
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if self.rect.bottom >= self.init_position[1]:
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self.rect.bottom = self.init_position[1]
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self.is_jumping = False
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elif self.is_ducking:
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if self.refresh_counter % self.refresh_rate == 0:
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self.refresh_counter = 0
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self.image_idx = 5 if self.image_idx == 6 else 6
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self.loadImage()
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else:
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if self.refresh_counter % self.refresh_rate == 0:
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self.refresh_counter = 0
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if self.image_idx == 1:
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self.image_idx = 2
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elif self.image_idx == 2:
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self.image_idx = 3
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else:
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self.image_idx = 1
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self.loadImage()
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self.refresh_counter += 1 |