2017-11-07 13 views
0

私は学校の課題に悩まされています。Python 'group object'に属性 'update_good'がありません - 第14章スプライトが動く

割り当てへのリンクはこちらです: http://programarcadegames.com/index.php?lang=en&chapter=lab_sprite_moving

私はそれは私が緑のブロックを移動したいと考え割り当てにステップ6になったが、私はupdateメソッドを動作させる方法を見つけ出すように見えるカント(私は自分のコードでupdate_goodと呼んだ)。 私はエラーはAttributeErrorと、それは角膜アップコードを実行しようとすると:「グループ」オブジェクトはここで何の属性「update_good」

を持っていない私のコードの下に

import pygame 
import random 
import block_library 
import good_block_library 

A_Block = block_library.Block 
A_Good_Block = good_block_library.good_block 



# Define some colors 
BLACK = (0, 0, 0) 
WHITE = (255, 255, 255) 
RED = (255, 0, 0) 
GREEN = (0, 255, 0) 
BLUE = (0, 0, 255) 



class Player(pygame.sprite.Sprite): 
    """ The class is the player-controlled sprite. """ 

    # -- Methods 
    def __init__(self, x, y): 
     """Constructor function""" 
     # Call the parent's constructor 
     super().__init__() 

     # Set height, width 
     self.image = pygame.Surface([15, 15]) 
     self.image.fill(BLUE) 

     # Make our top-left corner the passed-in location. 
     self.rect = self.image.get_rect() 
     self.rect.x = x 
     self.rect.y = y 

     # -- Attributes 
     # Set speed vector 
     self.change_x = 0 
     self.change_y = 0 

    def changespeed(self, x, y): 
     """ Change the speed of the player""" 
     self.change_x += x 
     self.change_y += y 

    def update(self): 
     """ Find a new position for the player""" 
     self.rect.x += self.change_x 
     self.rect.y += self.change_y 


# Initialize Pygame 
pygame.init() 

# Set the height and width of the screen 
screen_width = 700 
screen_height = 400 
screen = pygame.display.set_mode([screen_width, screen_height]) 



bump_sound = pygame.mixer.Sound("bump.wav") 
good_sound = pygame.mixer.Sound("good_block.wav") 
bad_sound = pygame.mixer.Sound("bad_block.wav") 


# This is a list of 'sprites.' Each block in the program is 
# added to this list. The list is managed by a class called 'Group.' 
good_block_list = pygame.sprite.Group() 

bad_block_list = pygame.sprite.Group() 

# This is a list of every sprite. 
# All blocks and the player block as well. 
all_sprites_list = pygame.sprite.Group() 

for i in range(50): 


    # This represents a block 
    A_Good_Block = A_Block(GREEN, 20, 15) 

    # Set a random location for the block 
    A_Good_Block.rect.x = random.randrange(screen_width) 
    A_Good_Block.rect.y = random.randrange(screen_height) 

    # Add the block to the list of objects 
    good_block_list.add(A_Good_Block) 
    all_sprites_list.add(A_Good_Block) 




for i in range(50): 
    # This represents a block 
    bad_block = A_Block(RED, 20, 15) 

    # Set a random location for the block 
    bad_block.rect.x = random.randrange(screen_width) 
    bad_block.rect.y = random.randrange(screen_height) 

    # Add the block to the list of objects 
    bad_block_list.add(bad_block) 
    all_sprites_list.add(bad_block) 

# Create a player block 
player = Player(10, 15) 
all_sprites_list.add(player) 




# Loop until the user clicks the close button. 
done = False 

# Used to manage how fast the screen updates 
clock = pygame.time.Clock() 

score = 0 

# -------- Main Program Loop ----------- 
while not done: 
    for event in pygame.event.get(): 
     if event.type == pygame.QUIT: 
      done = True 

     elif event.type == pygame.KEYDOWN: 
      if event.key == pygame.K_LEFT: 
       player.changespeed(-3, 0) 
      elif event.key == pygame.K_RIGHT: 
       player.changespeed(3, 0) 
      elif event.key == pygame.K_UP: 
       player.changespeed(0, -3) 
      elif event.key == pygame.K_DOWN: 
       player.changespeed(0, 3) 

     # Reset speed when key goes up 
     elif event.type == pygame.KEYUP: 
      if event.key == pygame.K_LEFT: 
       player.changespeed(3, 0) 
      elif event.key == pygame.K_RIGHT: 
       player.changespeed(-3, 0) 
      elif event.key == pygame.K_UP: 
       player.changespeed(0, 3) 
      elif event.key == pygame.K_DOWN: 
       player.changespeed(0, -3) 



    # Clear the screen 
    screen.fill(WHITE) 


    #!!!! this is where the problem occurs v 
    good_block_list.update_good() 


    all_sprites_list.update() 

    # See if the player block has collided with anything. 
    blocks_hit_list = pygame.sprite.spritecollide(player, good_block_list, True) 

    blocks_hit_list2 = pygame.sprite.spritecollide(player, bad_block_list, True) 


    # Check the list of collisions. 
    for block in blocks_hit_list: 
     score += 1 
     good_sound.play() 

    for block in blocks_hit_list2: 
     score-= 1 
     bad_sound.play() 

    font = pygame.font.SysFont('Calibri', 25, True, False) 
    text = font.render("Score: " + str(score), True, BLACK) 
    screen.blit(text, [30, 350]) 


    # Draw all the spites 
    all_sprites_list.draw(screen) 


    if player.rect.y == 0 or player.rect.y == 399: 
     bump_sound.play() 

    if player.rect.x == 1 or player.rect.x == 700: 
     bump_sound.play() 

    # update the screen 
    pygame.display.flip() 

    # Limit to 60 frames per second 
    clock.tick(60) 

pygame.quit() 

が、私はそれが含まれているインポートされるプログラムで、 good_blockクラスとupdate_good関数です。私はこの問題はここにあるかもしれないと思うの下

def main(): 
    pass 

if __name__ == '__main__': 
    main() 
import pygame 
import block_library 
import random 

GREEN = (0, 255, 0) 
screen_width = 700 
screen_height = 400 
A_Block = block_library.Block 

change_x = random.randint(-3,3) 
change_y = random.randint(-3,3) 

good_block_list = pygame.sprite.Group() 
all_sprites_list = pygame.sprite.Group() 


class good_block(A_Block): 
    def changespeed(self, x, y): 
     """ Change the speed of the player""" 
     self.change_x += x 
     self.change_y += y 

    def update_good(self): 
     self.rect.x += self.change_x 
     self.rect.y += self.change_y 

あるライブラリはA_good_blockが

答えて

1

問題を助けてください

import pygame 
import random 



class Block(pygame.sprite.Sprite): 
    """ 
    This class represents the ball. 
    It derives from the "Sprite" class in Pygame. 
    """ 

    def __init__(self, color, width, height): 
     """ Constructor. Pass in the color of the block, 
     and its x and y position. """ 

     # Call the parent class (Sprite) constructor 
     super().__init__() 

     # Create an image of the block, and fill it with a color. 
     # This could also be an image loaded from the disk. 
     self.image = pygame.Surface([width, height]) 
     self.image.fill(color) 
     # Fetch the rectangle object that has the dimensions of the image 
     # image. 
     # Update the position of this object by setting the values 
     # of rect.x and rect.y 
     self.rect = self.image.get_rect() 
     self.change_x = random.randint(-3,3) 
     self.change_y = random.randint(-3,3) 

から継承されたクラスを使用すると、完全には理解していないことをされていますあなたがコードしているのは何ですか。

コードall_sprites_list.update()が機能する理由は、そのメソッドが実際にそのオブジェクトに対して定義されているためです。 Pygame Groupオブジェクトを持っています。このオブジェクトには、ここで読むことができる独自のメソッドがあります:https://www.pygame.org/docs/ref/sprite.html#pygame.sprite.Group

update()メソッドがありますが、update_good()メソッドがありません。ドキュメントによれば、update()メソッドは、その中に含まれるすべてのスプライトからupdate()メソッドを呼び出すと言います。

これは単純なようですが、update_good()update()に変更してから、update()というグループのメソッドを呼び出すとうまくいきます。

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