我开始做这个蛇游戏,结果遇到了一场争斗。我想当蛇到达一边的末端时,它会从另一边来;如果它到达左边的末端,它就会从右边出来;如果它到达顶端,它就会从底部出来。如果有人能教我怎么做,我会非常感激的。在
import pygame
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
segment_width = 15
segment_height = 15
segment_margin = 3
x_change = segment_width + segment_margin
y_change = 0
class Segment(pygame.sprite.Sprite):
def __init__(self, x, y):
super().__init__()
self.image = pygame.Surface([segment_width, segment_height])
self.image.fill(WHITE)
self.rect = self.image.get_rect()
self.rect.x = x
self.rect.y = y
pygame.init()
screen = pygame.display.set_mode([1200, 800])
pygame.display.set_caption('Snakes')
allspriteslist = pygame.sprite.Group()
snake_segments = []
for i in range(3):
x = 250 - (segment_width + segment_margin) * i
y = 30
segment = Segment(x, y)
snake_segments.append(segment)
allspriteslist.add(segment)
clock = pygame.time.Clock()
done = False
while not done:
for event in pygame.event.get():
if event.type == pygame.QUIT:
done = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
x_change = (segment_width + segment_margin) * -1
y_change = 0
if event.key == pygame.K_RIGHT:
x_change = (segment_width + segment_margin)
y_change = 0
if event.key == pygame.K_UP:
x_change = 0
y_change = (segment_height + segment_margin) * -1
if event.key == pygame.K_DOWN:
x_change = 0
y_change = (segment_height + segment_margin)
old_segment = snake_segments.pop()
allspriteslist.remove(old_segment)
x = snake_segments[0].rect.x + x_change
y = snake_segments[0].rect.y + y_change
segment = Segment(x, y)
snake_segments.insert(0, segment)
allspriteslist.add(segment)
screen.fill(BLACK)
allspriteslist.draw(screen)
pygame.display.flip()
clock.tick(5)
pygame.quit()
您可以使用
if
检查位置并移动到另一侧但问题是分段并不能理想地填充屏幕—有时您应该将部分片段显示在一侧,而将其放在另一侧。您必须将方法
^{pr2}$draw()
添加到Segment
中,该方法将检查是否必须在两侧绘制线段并绘制两个线段-第一个在一侧,第二个在另一侧。在但这意味着您必须手动执行此函数,因为
group.draw()
直接运行screen.blit(self.image, self.rect)
完整代码
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