尝试绘制角色时Pygame蛇游戏属性错误

Question

第 134 行我收到一个属性错误，我对 pygame 还很陌生，所以我相信这与我的论点有关，但我不确定。这是错误所在的行：

pygame.draw.rect(window.pygame.Color("RED"), pygame.Rect(int(foodpos[0]), int(foodpos[1]), 10, 10))

确切的错误是：

AttributeError: 'pygame.Surface' object has no attribute 'pygame'. 

Traceback (most recent call last):
  File "C:\Program Files (x86)\Thonny\lib\site-packages\thonny\backend.py", line 1744, in _trace
    return self._trace_and_catch(frame, event, arg)
  File "C:\Program Files (x86)\Thonny\lib\site-packages\thonny\backend.py", line 1819, in _trace_and_catch
    assert last_custom_frame.event.startswith("before_")
AssertionError
Traceback (most recent call last):
  File "D:\CS 20 School Projects\Daily Work.py", line 134, in <module>
    pygame.draw.rect(window.pygame.Color("RED"), pygame.Rect(int(foodpos[0]), int(foodpos[1]), 10, 10))
AttributeError: 'pygame.Surface' object has no attribute 'pygame'"""

import pygame, sys, random, time

BLACK = (0, 0, 0)
WHITE = (225, 225, 225)
BLUE = (0, 0, 225)
RED = (225, 0, 0)


class Snake(object):
    def __init__(self):
        self.position = [100, 50]  # sets initial position of the snake
        self.body = [[100, 50], [90, 50], [80, 50]]  # sets initial length of the snakes body to 3 segments
        self.direction = "RIGHT"
        self.change_direction_to = self.direction

    # ---------------------------- Makes it possible to change directions but you cannot go directly backwards
    def change_direction_to(self, dir):
        if dir == "RIGHT" and not self.direction == "LEFT":
            self.direction = "RIGHT"
        elif dir == "LEFT" and not self.direction == "RIGHT":
            self.direction = "LEFT"
        elif dir == "UP" and not self.direction == "DOWN":
            self.direction = "UP"
        elif dir == "DOWN" and not self.direction == "UP":
            self.direction = "DOWN"

    # ----------------------------

    # -------------------------------- Sets the speed of the snake
    def move(self):
        if self.direction == "RIGHT":
            self.position[0] += 10
        if self.direction == "LEFT":
            self.position[0] -= 10
        if self.direction == "UP":
            self.position[0] += 10
        if self.direction == "DOWN":
            self.position[0] -= 10
        # ---------------------------------

        # ----------------------------- Checks if snake has ate food
        self.body.insert(0, list(self.position))
        if self.position == foodpos:
            return 1
        else:
            self.body.pop()
            return 0

    # -----------------------------

    # ---------------------------------checks if snake has hit a wall
    def check_collision(self):
        if self.position[0] > 490 or self.position < 0:
            return 1
        elif self.position[1] > 490 or self.position < 0:
            return 1
        # ----------------------------------

        # ---------------------------checks if snake has hit itself
        for body_part in self.body[1:]:
            if self.position == body_part:
                return 1
        return 0

    # ---------------------------

    def get_head_position(self):
        return self.position

    def get_body(self):
        return self.body


class FoodSpawner:

    def __init__(self):
        self.position = [random.randrange(1, 50) * 10], [random.randrange(1, 50) * 10]
        self.is_food_on_screen = True

    def spawn_food(self):
        if not self.is_food_on_screen:
            self.position = [random.randrange(1, 50) * 10], [random.randrange(1, 50) * 10]
            self.is_food_on_screen = True
        return self.position

    def set_food_on_screen(self, b):
        self.is_food_on_sceen = b


window = pygame.display.set_mode((700, 600))
pygame.display.set_caption("Definitely Not Snake")
fps = pygame.time.Clock()

score = 0

snake = Snake()
food_spawner = FoodSpawner()


def game_over():
    pygame.quit()
    sys.exit()


while True:
    for event in pygame.event.get():

        # ------------------------- quits the game
        if event.type == pygame.QUIT:
            game_over()
        # -------------------------

        # ------------------------- movement of the snake
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                snake.change_dir_to("RIGHT")
            if event.key == pygame.K_LEFT:
                snake.change_dir_to("LEFT")
            if event.key == pygame.K_RIGHT:
                snake.change_dir_to("UP")
            if event.key == pygame.K_RIGHT:
                snake.change_dir_to("DOWN")
    # -------------------------

    # ----------------------------- adds to score if the snake eats the food
    foodpos = food_spawner.spawn_food()
    if snake.move(foodpos) == 1:
        score += 1
        food_spawner.set_food_on_screen(False)
    # ------------------------------

    # ------------------------------ draws the screen, the snake, and its food
    window.fill(pygame.Color("BLACK"))
    for pos in snake.get_body():
        pygame.draw.rect(window, pygame.Color("BLUE"), pygame.Rect(pos[0], pos[1], 10, 10))
    pygame.draw.rect(window.pygame.Color("RED"), pygame.Rect(int(foodpos[0]), int(foodpos[1]), 10, 10))
    # ------------------------------

    if snake.check_collision() == 1:
        game_over()
    pygme.display.set_caption("Definitely not Snake | Score : " + str(score))
    pygame.display.flip()
    fps.tick(24)

Answer 1

在spawn_food方法中

self.position = [random.randrange(1, 50) * 10], [random.randrange(1, 50) * 10]

必须是

self.position = [random.randrange(1, 50) * 10, random.randrange(1, 50) * 10]

第一个是一个元组，其中每个元素都是一个列表([x], [y])，第二个是一个包含 2 个元素的列表[x, y]

注意，spawn_food 返回 self.position 并将返回值分配给 foodpos：

foodpos = food_spawner.spawn_food()

由于foodpos 是一个包含具有 1 个元素 (([x], [y])) 的列表的元组，因此会导致错误

pygame.Rect(int(foodpos[0]), int(foodpos[1]), 10, 10)

Answer 2

    for pos in snake.get_body():
        pygame.draw.rect(window,pygame.Color("BLUE"),pygame.Rect(pos[0],pos[1],10,10))
                               ^
    pygame.draw.rect(window.pygame.Color("RED"), pygame.Rect(int(foodpos[0]), int(foodpos[1]), 10, 10))
                           ^

我相信有一个错字。由于您的蓝色绘图没有错误，因此应该是“window.pygame”错误。