碰撞功能-AttributeError：类型对象“ head”没有属性“ rect”

Question

我目前正在设计蛇类游戏，但是难以检测到精灵之间的碰撞并不断出现错误-AttributeError：类型对象'head'没有属性'rect'。

我正在使用

eat = pygame.sprite.collide_rect(head, apple)

检测碰撞的功能。

这是我的完整代码

import pygame
import random
BLACK = (0, 0, 0)
GREEN = (0, 250, 0)
RED = (250, 0, 0)
Width = 15
Space = 3
Xspeed = 18
Yspeed = 0
Factor = 18
clock = pygame.time.Clock()
segments = 10
class head(pygame.sprite.Sprite):
    def __init__(self, x, y, colour = GREEN):
        super().__init__()
        self.image = pygame.Surface([Width, Width])
        self.image.fill(colour)
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y

class apple(pygame.sprite.Sprite):
    def __init__(self, z, q):
        super().__init__()
        self.image = pygame.Surface([Width, Width])
        self.image.fill(RED)
        self.rect = self.image.get_rect()
        self.rect.x = z
        self.rect.y = q


for i in range(0,20):
    z = random.randint(1,800)
    q = random.randint(1,800)
    c = apple(z,q)



pygame.init()
screen = pygame.display.set_mode([800, 800])

pygame.display.set_caption('Snake')

allspriteslist = pygame.sprite.Group()


SnakeSegments = []
for i in range(segments):
    x = 250 - (Width + Space) * i
    y = 30
    h = head(x, y)
    SnakeSegments.append(h)
    allspriteslist.add(h)

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:
                if Xspeed == -Factor:
                    Xspeed = 0
                if Xspeed == Factor:
                    Xspeed = Factor
                else:
                    Xspeed = Xspeed - Factor
                    Yspeed = 0
            elif event.key == pygame.K_RIGHT:
                if Xspeed == Factor:
                    Xspeed = 0
                if Xspeed == -Factor:
                    Xspeed = -Factor
                else:
                    Xspeed = Xspeed + Factor
                    Yspeed = 0
            elif event.key == pygame.K_UP:
                if Yspeed == -Factor:
                    Yspeed = 0
                if Yspeed == Factor:
                    Yspeed = Factor
                else:
                    Yspeed = Yspeed - Factor
                    Xspeed = 0
            elif event.key == pygame.K_DOWN:
                if Yspeed == Factor:
                    Yspeed = 0
                if Yspeed == -Factor:
                    Yspeed = -Factor
                else:
                    Yspeed = Yspeed + Factor
                    Xspeed = 0
    clock.tick(10)
    OldSegment = SnakeSegments.pop()
    allspriteslist.remove(OldSegment)
    x = SnakeSegments[0].rect.x + Xspeed
    y = SnakeSegments[0].rect.y + Yspeed
    h = head(x, y)
    SnakeSegments.insert(0, h)
    allspriteslist.add(h,c)
    allspriteslist.update()
    print(x,y)
    print(z,q)
    eat = pygame.sprite.collide_rect(head, apple)





    screen.fill(BLACK)
    #game walls
    pygame.draw.rect(screen, GREEN, [0, 0, 800, 10])
    pygame.draw.rect(screen, GREEN, [0, 0, 10, 800])
    pygame.draw.rect(screen, GREEN, [0, 790, 800, 10])
    pygame.draw.rect(screen, GREEN, [790, 0, 10, 800])
    if x <= 10:
        done = True
    if x >= 785:
        done = True
    if y <= 10:
        done = True
    if y >= 785:
        done = True
    allspriteslist.draw(screen)
    pygame.display.flip()