How to Display Sprites in Pygame?

问题

This is just a quick question regarding sprites in PyGame, I have my image loaded as in the code below, and I'm just wondering how to display the sprite in PyGame like drawing a rectangle or circle. I don't want to have it behave in anyway. I think I use a blit command, but I'm not sure and I'm not finding much online.

Here's my image code for loading it.

Star = pygame.image.load('WhiteStar.png').convert_alpha()

You could just provide an outline for loading a sprite. I simply want to display it.

回答1:

Use blit to draw an image. Actually blit draws one Surface onto another. Hence you need to blit the image onto the Surface associated to the display.
You need to specify the position where the image is blit on the target. The position can be specified by a pair of coordinates that define the top left position. Or it can be specified by a rectangle, only taking into account the top left point of the rectangle:

screen = pygame.dispaly.set_mode((width, height))
star = pygame.image.load('WhiteStar.png').convert_alpha()

# [...]

while run:
    # [...]

    screen.blit(star, (x, y))

    # [...]

---

Use a pygame.Rect when you want to place the center of a surface at a specific point. pygame.Surface.get_rect.get_rect() returns a rectangle with the size of the Surface object, that always starts at (0, 0) since a Surface object has no position. The position of the rectangle can be specified by a keyword argument. For example, the center of the rectangle can be specified with the keyword argument center. These keyword argument are applied to the attributes of the pygame.Rect before it is returned (see pygame.Rect for a full list of the keyword arguments):

screen.blit(star, star.get_rect(center = (x, y)))

来源：https://stackoverflow.com/questions/59348409/how-to-display-sprites-in-pygame