how to animate the sprite?-CodePudding

    from numpy import size
import pygame
import sys

# --- constants ---  # PEP8: `UPPER_CASE_NAMES` for constants

WHITE = (255, 255, 255)   # PE8: space after `,`
SIZE = (700, 500)
FPS = 120  # there is no need to use `500` because Python can't run so fast,
           # and monitors runs with 60Hz (eventually 120Hz) which can display 60 FPS (120 FPS)

# --- classes ---  # PEP8: `CamelCaseNames` for classes

class MySprite(pygame.sprite.Sprite):
    
    def __init__(self, x, y, picture, colorkey):
        super().__init__()
        
        # you need one of them
        
        # load image
        self.image = pygame.image.load(picture)
        
        # OR

        # create surface        
        # self.image = pygame.Surface((10, 10))
        # self.image.fill((255, 0, 0))
        
        # ----
        
        self.rect = self.image.get_rect()
        self.rect.center = (x, y)

        self.image.set_colorkey(colorkey)
    def update(self):
        if event.type == pygame.MOUSEBUTTONDOWN:
            mouse = pygame.mouse.get_pos()
            print(mouse[:])

# --- main ---

pygame.init()
window_game = pygame.display.set_mode(SIZE)
backGround = pygame.image.load('bg.jpg').convert_alpha(window_game)
backGround = pygame.transform.smoothscale(backGround,SIZE)
backGround.set_colorkey(WHITE)

#placeSP_group = pygame.sprite.Group()
placeSP_group = pygame.sprite.OrderedUpdates()  # Group which keep order

sprite1 = [MySprite(0, 0, 'crossHair.png', WHITE),MySprite(0, 0, 'crossHair_2.png', WHITE)]

placeSP_group.add([sprite1[0],sprite1[1]])
pygame.mouse.set_visible(False)

clock = pygame.time.Clock()   # PEP8: `lower_case_names` for variables

running = True

while running:

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            #running = False
            pygame.quit()
            exit()
            
    # create new Sprite
    global x,y
    x, y = pygame.mouse.get_pos()
    new_sprite = sprite1[:]
    
    # add new Sprite at the end of OrderedUpdates()
    placeSP_group.add([new_sprite])
    # remove Sprite at the beginning of OrderedUpdates()
    placeSP_group.sprites()[0].kill()  
     
    
    placeSP_group.update() 

    # ---

    pygame.display.flip()
    
    window_game.fill('white') 
    window_game.blit(backGround,(0,0)).size
    
    placeSP_group.draw(window_game)
    
    clock.tick(FPS)

when i assignee new_sprite to all the assigned sprites in placeSP it dosen't show any thing can you help me with that i am not sure why is that happening but can you fix it ... this an edited question. And i didn't got any answer .... but i have the concept in my head can and i also don't wan't to modify my code that much can you help me with that...

CodePudding user response：

Create a sprite class with a list of images. Add an attribute that counts the frames. Get image from image list in the update method based on number of frames:

class MySprite(pygame.sprite.Sprite):
    
    def __init__(self, x, y, image_list):
        super().__init__()
        self.frame = 0
        self.image_list = image_list
        self.image = self.image_list[0]
        self.rect = self.image.get_rect()
        self.rect.center = (x, y)

    def update(self, event_list):

        animation_interval = 20
        self.frame  = 1
        if self.frame // animation_interval >= len(self.image_list):
            self.frame = 0
        self.image = self.image_list[self.frame // animation_interval]
        
        for event in event_list:
            if event.type == pygame.MOUSEBUTTONDOWN:
                mouse = event.pos
                print(mouse[:])

However, instead of constantly creating and killing the sprite every frame, you need to create the sprite once before the application loop. Change the position of the sprite and update the sprite in the application loop:

file_list = ['crossHair.png', 'crossHair_2.png', 'crossHair_3.png']
image_list = []
for name in file_list:
    image = pygame.image.load(name)
    image.set_colorkey(WHITE)
    image_list.append(image)

# create sprite
sprite1 = MySprite(0, 0, image_list)
placeSP_group = pygame.sprite.OrderedUpdates()
placeSP_group.add([sprite1])

clock = pygame.time.Clock()
running = True
while running:

    # handle events
    event_list = pygame.event.get()
    for event in event_list:
        if event.type == pygame.QUIT:
            running = False
            
    # update sprite
    x, y = pygame.mouse.get_pos()   
    placeSP_group.sprites()[0].rect.center = (x, y)     
    placeSP_group.update(event_list) 
    
    # draw scene
    window_game.fill('white') 
    window_game.blit(backGround,(0,0)).size
    placeSP_group.draw(window_game)
    pygame.display.flip()
    
    clock.tick(FPS)

pygame.quit()
exit()