我目前正在做一个小蛇游戏,我被卡住了,而试图代码的苹果。我使用了一个名为Segment
的类,它在其构造函数(__init__
)中定义了段颜色
但是,我也希望对apple使用Segment
类。我用它来snake_segments
,现在我想用它来apple_segments
。我做了,但颜色仍然是白色的,我不知道如何使它绿色,而仍然使蛇白色
import pygame
import random
import time
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
GREEN = (0, 255, 0)
segment_width = 16
segment_height = 16
segment_margin = 4
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
def draw(self, screen):
screen_rect = screen.get_rect()
screen.blit(self.image, self.rect)
if self.rect.left < screen_rect.left:
temp_rect = self.rect.copy()
temp_rect.x += screen_rect.width
screen.blit(self.image, temp_rect)
elif self.rect.right > screen_rect.right:
temp_rect = self.rect.copy()
temp_rect.x -= screen_rect.width
screen.blit(self.image, temp_rect)
if self.rect.top < screen_rect.top:
temp_rect = self.rect.copy()
temp_rect.y += screen_rect.height
screen.blit(self.image, temp_rect)
elif self.rect.bottom > screen_rect.bottom:
temp_rect = self.rect.copy()
temp_rect.y -= screen_rect.height
screen.blit(self.image, temp_rect)
pygame.init()
screen = pygame.display.set_mode((800, 600))
screen_rect = screen.get_rect()
pygame.display.set_caption('Snakes')
allspriteslist = pygame.sprite.Group()
snake_segments = []
for i in range(3):
x = 400 - (segment_width + segment_margin) * 1
y = 200
segment = Segment(x, y)
snake_segments.append(segment)
allspriteslist.add(segment)
apple_segments = []
for i in range(1):
x = 200 - (segment_width + segment_margin) * 1
y = 100
segment = Segment(x, y)
apple_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
if x < screen_rect.left:
x += screen_rect.width
elif x + segment_width + segment_margin > screen_rect.right:
x -= screen_rect.width
if y < screen_rect.top:
y += screen_rect.height
elif y + segment_height + segment_margin > screen_rect.bottom:
y -= screen_rect.height
segment = Segment(x, y)
snake_segments.insert(0, segment)
allspriteslist.add(segment)
screen.fill(BLACK)
# allspriteslist.draw(screen)
for x in allspriteslist:
x.draw(screen)
pygame.display.flip()
clock.tick(5)
pygame.quit()
根据Peter Wood所说,您可以修改
Segment
以接受颜色作为其参数之一:您还可以为snake和apple片段创建子类:
在代码的其余部分中,确保组成snake的所有片段实例都是
SnakeSegments
,表示apple的片段实例是AppleSegment
:这是我开始游戏时看到的:
作为参考,这是我正在运行的修改代码的全部内容:
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