python - Pygame - Making a Sprite "walk" in the right direction -


i continuing work using pygame. working on enemy class. basically, walk 1 side another. can walk between set boundaries, cannot image display proper direction enemy facing. if can please me out or give me advice, i'd appreciate it. thank you.

i believe issue update() function.

here enemy class

class enemies(pygame.sprite.sprite):      enemy_moving_frames_r = []      enemy_moving_frames_l = []       change_x = 0      change_y = 0       boundary_top = 0      boundary_bottom = 0      boundary_left = 0      boundary_right = 0       level = none      player = none def __init__(self):     pygame.sprite.sprite.__init__(self)     sprite_sheet = spritesheet("stuff/skeleton_7.png")      image = sprite_sheet.get_image(7, 7, 28, 64)     self.enemy_moving_frames_r.append(image)     image = sprite_sheet.get_image(37, 7, 33, 64)     self.enemy_moving_frames_r.append(image)     image = sprite_sheet.get_image(70, 7, 33, 64)     self.enemy_moving_frames_r.append(image)     image = sprite_sheet.get_image(107, 7, 33, 64)     self.enemy_moving_frames_r.append(image)     image = sprite_sheet.get_image(142, 7, 33, 64)     self.enemy_moving_frames_r.append(image)       image = sprite_sheet.get_image(7, 7, 28, 64)     image = pygame.transform.flip(image, true, false)     self.enemy_moving_frames_l.append(image)     image = sprite_sheet.get_image(37, 7, 33, 64)     image = pygame.transform.flip(image, true, false)     self.enemy_moving_frames_l.append(image)     image = sprite_sheet.get_image(70, 7, 33, 64)     image = pygame.transform.flip(image, true, false)     self.enemy_moving_frames_l.append(image)     image = sprite_sheet.get_image(107, 7, 33, 64)     image = pygame.transform.flip(image, true, false)     self.enemy_moving_frames_l.append(image)     image = sprite_sheet.get_image(142, 7, 33, 64)     image = pygame.transform.flip(image, true, false)     self.enemy_moving_frames_l.append(image)       self.image = self.enemy_moving_frames_r[0]     self.rect = self.image.get_rect()    def update(self):     # move left/right     self.rect.x += self.change_x      cur_pos = self.rect.x - self.level.world_shift      print(cur_pos)      if cur_pos < self.boundary_left:         self.change_x *= -1         frame = (self.rect.x // 30) % len(self.enemy_moving_frames_r)         self.image = self.enemy_moving_frames_r[frame]     elif cur_pos > self.boundary_right:         self.change_x *= -1         frame = (self.rect.x // 30) % len(self.enemy_moving_frames_l)         self.image = self.enemy_moving_frames_l[frame]

it looks you're updating frames when enemy changes direction (i.e. when hits 1 of boundaries). frames should updated each frame based on current position , direction when sprite hasn't hit boundary:

def update(self):     # move left/right     self.rect.x += self.change_x      cur_pos = self.rect.x - self.level.world_shift      print(cur_pos)      # test against boundaries:     if cur_pos < self.boundary_left or cur_pos > self.boundary_right:         self.change_x *= -1      # set animation frame:     if self.change_x > 0:         frame = (self.rect.x // 30) % len(self.enemy_moving_frames_r)         self.image = self.enemy_moving_frames_r[frame]     elif self.change_x < 0:         frame = (self.rect.x // 30) % len(self.enemy_moving_frames_l)         self.image = self.enemy_moving_frames_l[frame]

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