Hopefully Helpful

So I was coding a simple python game the other day using pygame, and I thought this might be helpful for someone:

class Test(pygame.sprite.Sprite):
  # Constructor function
  def __init__(self,x,y):
    # Call the parent's constructor
    pygame.sprite.Sprite.__init__(self)

    # Set init speed
    self.change_x=0
    self.change_y=0
    self.facing = 0 
    # Set height, width
    self.image = pygame.image.load('baddie.png')
    self.down = [pygame.image.load('baddie.png').convert_alpha(),
                 pygame.image.load('baddie1.png').convert_alpha(),
                 pygame.image.load('baddie2.png').convert_alpha(),
                 pygame.image.load('baddie3.png').convert_alpha(),
                 pygame.image.load('baddie2.png').convert_alpha(),
                 pygame.image.load('baddie1.png').convert_alpha()]
    self.left = [pygame.image.load('baddiel.png').convert_alpha(),
                 pygame.image.load('baddiel1.png').convert_alpha(),
                 pygame.image.load('baddiel2.png').convert_alpha(),
                 pygame.image.load('baddiel3.png').convert_alpha(),
                 pygame.image.load('baddiel2.png').convert_alpha(),
                 pygame.image.load('baddiel1.png').convert_alpha()]
    self.right = [pygame.image.load('baddier.png').convert_alpha(),
                  pygame.image.load('baddier1.png').convert_alpha(),
                  pygame.image.load('baddier2.png').convert_alpha(),
                  pygame.image.load('baddier3.png').convert_alpha(),
                  pygame.image.load('baddier2.png').convert_alpha(),
                  pygame.image.load('baddier1.png').convert_alpha()]
    self.up = [pygame.image.load('baddieu.png').convert_alpha(),
               pygame.image.load('baddieu1.png').convert_alpha(),
               pygame.image.load('baddieu2.png').convert_alpha(),
               pygame.image.load('baddieu3.png').convert_alpha(),
               pygame.image.load('baddieu2.png').convert_alpha(),
               pygame.image.load('baddieu1.png').convert_alpha()]

    self.imgcounter = 0
    self.imgvar = 0
    # Make our top-left corner a required input for the class
    self.rect = self.image.get_rect()
    self.rect.topleft = [x,y]
  
# Change the speed of the player
  def changespeed(self,x,y):

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

    # Get the old position, in case we need to go back to it
    old_x=self.rect.topleft[0]
    old_y=self.rect.topleft[1]
     
    # Update position according to our speed (vector)
    new_x=old_x+self.change_x
    new_y=old_y+self.change_y
     
    # Put the player in the new spot
    self.rect.topleft = (new_x,new_y)
    if self.change_x == 0 and self.change_y == 0:
      #self.imgvar = 0
      if self.facing == 3:
        self.image = self.left[0]
      if self.facing == 2:
        self.image = self.down[0]
      if self.facing == 4:
        self.image = self.right[0]
      if self.facing == 1:
        self.image = self.up[0]
       
    if self.change_x < 0:
      self.facing = 3
      if self.imgcounter == 0:
        self.image = self.left[0]
        #self.imgcounter =+ 1
      self.imgcounter += 1
      self.image = self.left[self.imgvar]
      if self.imgcounter > 1:
        self.imgcounter = 0
        self.imgvar += 1
        if self.imgvar > len(self.left)-1:
          self.imgvar = 0
         
        #self.image = self.left[self.imgvar]
     
    if self.change_x > 0:
      self.facing = 4
      if self.imgcounter == 0:
        self.image = self.right[0]
        #self.imgcounter =+ 1
      self.imgcounter += 1
      self.image = self.right[self.imgvar]
      if self.imgcounter > 1:
        self.imgcounter = 0
        self.imgvar += 1
        if self.imgvar > len(self.right)-1:
          self.imgvar = 0
    if self.change_y < 0:
     
      self.facing = 1
      if self.imgcounter == 0:
        self.image = self.up[0]
        #self.imgcounter =+ 1
      self.imgcounter += 1
      self.image = self.up[self.imgvar]
      if self.imgcounter > 1:
        self.imgcounter = 0
        self.imgvar += 1
        if self.imgvar > len(self.up)-1:
          self.imgvar = 0
    if self.change_y > 0:
      self.facing = 2
      if self.imgcounter == 0:
        self.image = self.down[0]
        #self.imgcounter =+ 1
      self.imgcounter += 1
      self.image = self.down[self.imgvar]
      if self.imgcounter > 1:
        self.imgcounter = 0
        self.imgvar += 1
        if self.imgvar > len(self.down)-1:
          self.imgvar = 0

It's a simple sprite created to help test some animations I created. Keeps track of directions and the update function flips through an array of images. You can easily adjust this to pull in images from a sprite sheet instead of using several image files.

It doesn't really do much else, but it's useful for testing out sprite animations.

-Newt