You have to clear the display in every frame with pygame.Surface.fill: while True: # […] screen.fill(0) # <— main.draw_elements() main.move_ball() main.ball.x_pos += main.ball.speed pygame.display.flip() # […] Everything that is drawn is drawn on the target surface. The entire scene is redraw in each frame. Therefore the display needs to be cleared at the begin of … Read more
You can use pygame’s Vector2 class instead of calculating the position of your sprite yourself. I also suggest to let the sprite itself handle its movement instead of doing so in the main loop and using a clock for constant framerates and easy control of the speed of your sprites. You also probably want to … Read more
The issue is the image format. JPEG images have no alpha channel. You can set a transparent colorkey by set_colorkey(), but the result will not satisfy you, because the JPEG is not lossless. That means due the compression, the colors will slightly change and the color key will not work correctly. For instance white color: … Read more
If you copy a transparent Surface to another Surface the target Surface has to provide transparency respectively per pixel alpha. You can enable additional functions when creating a new surface. Set the SRCALPHA flag to create a surface with an image format that includes a per-pixel alpha. The initial value of the pixels is (0, … Read more
pygame.Surface.get_rect.get_rect() returns a rectangle with the size of the Surface object. This function does not consider the drawing area in the image. You can find the bounding rectangle of the painted area in the surface, with pygame.Surface.get_bounding_rect: bounding_rect = image.get_bounding_rect() bounding_rect.move_ip(target_rect.topleft) See the example. The black rectangle is the Surface rectangle and the red rectangle … Read more
The game is running slow because you load the START_Image in every frame. pygame.image.load is a very expensive operation, because it has to read the images from the data store. Load START_Image once at startup surface = pygame.display.set_mode((width,height)) clock = pygame.time.Clock()#for fps #caption pygame.display.set_caption(‘Survival Island’) START_Image = pygame.image.load(‘START_Image.png’).convert() Do not call pygame.display.update() more than once … Read more
Place the image file in the same directory as the Python file. Change the current working directory to the directory of the file. The name and path of the file can be get by __file__. The current working directory can be get by os.getcwd() and can be changed by os.chdir(path): import os sourceFileDir = os.path.dirname(os.path.abspath(__file__)) … Read more
Ensure that the background Surface has the same format as the display Surface. Use convert() to create a Surface that has the same pixel format. That should improve the performance, when the background is blit to the display, because the formats are compatible and blit do not have to do an implicit transformation. bg = … Read more
All you have to do is to load an image: my_image = pygame.image.load(‘my_image.png’).convert_alpha() And blit it an top of the rectangle: def button(x, y, w, h, ic, ac, img, imgon, action=None): mouse = pygame.mouse.get_pos() click = pygame.mouse.get_pressed() rect = pygame.Rect(x, y, w, h) on_button = rect.collidepoint(mouse) if on_button: pygame.draw.rect(screen, ac, rect) screen.blit(imgon, imgon.get_rect(center = rect.center)) … Read more
You don’t need to change the background color of the image to the background color of the window, but make the background of the image transparent. Set the transparent colorkey by pygame.Surface.set_colorkey: Set the current color key for the Surface. When blitting this Surface onto a destination, any pixels that have the same color as … Read more