我已经阅读了所有相似的主题,但我找不到问题。我写了一个python游戏,我希望我的玩家通过方向箭头移动并通过鼠标旋转。
当我写关于旋转的代码时,我有退出错误:
Player
对象没有属性position
我在互联网上尝试了许多不同的解决方案,但没有任何改变。
class Player(pygame.sprite.Sprite):
#change_x = 0
#change_y = 0
def __init__(self, x, y):
super().__init__()
self.image = pygame.image.load("player1.gif").convert()
#self.image.fill(WHITE)
self.rect = self.image.get_rect()
self.rect.y = y
self.rect.x = x
self.change_x = 0
self.change_y = 0
self.walls = None
def changespeed(self, x, y):
self.change_x += x
self.change_y += y
def move(self, walls):
self.rect.x += self.change_x
block_hit_list = pygame.sprite.spritecollide(self, walls, False)
for block in block_hit_list:
if self.change_x > 0:
self.rect.right = block.rect.left
else:
self.rect.left = block.rect.right
self.rect.y += self.change_y
block_hit_list = pygame.sprite.spritecollide(self, walls, False)
for block in block_hit_list:
if self.change_y > 0:
self.rect.bottom = block.rect.top
else:
self.rect.top = block.rect.bottom
def rotate(self):
mouse_x, mouse_y = pygame.mouse.get_pos()
rel_x, rel_y = mouse_x - self.rect.x, mouse_y - self.rect.y
angle = (180 / math.pi) * -math.atan2(rel_y, rel_x)
self.image = pygame.transform.rotate(self.image, int(angle))
self.rect = self.image.get_rect(center=self.position)
添加旋转功能后,这是我的代码。故障在哪里以及如何在主循环中调用旋转?
可以通过pygame.Surface
旋转图像(pygame.transform.rotate
)。
如果逐步完成图像,则图像变形并快速增加。查看How do I rotate an image around its center using Pygame?的答案
要解决这个问题,你必须保留原始图像,并在类.image
的构造函数中分配Player
属性的副本:
self.image_source = pygame.image.load("player1.gif").convert()
self.image = self.image_source.copy()
旋转原始图像,并在方法.image
中更新属性rotate
:
self.image = pygame.transform.rotate(self.image_source, int(angle))
self.rect = self.image.get_rect(center=self.rect.center)
class Player(pygame.sprite.Sprite):
def __init__(self, x, y):
super().__init__()
self.image_source = pygame.image.load("player1.gif").convert()
self.image = self.image_source.copy()
self.rect = self.image.get_rect()
self.rect.y = y
self.rect.x = x
self.change_x = 0
self.change_y = 0
self.walls = None
def rotate(self):
mouse_x, mouse_y = pygame.mouse.get_pos()
rel_x, rel_y = mouse_x - self.rect.x, mouse_y - self.rect.y
angle = (180 / math.pi) * -math.atan2(rel_y, rel_x)
self.image = pygame.transform.rotate(self.image_source, int(angle))
self.rect = self.image.get_rect(center=self.rect.center)