Ich habe ein Skript geschrieben, mit dem ein Benutzer das Sprite eines Adlers steuern und herumfliegen kann, um Pygame zu lernen. Es schien in Ordnung zu sein, bis ich eine Rotationsfunktion implementiert habe, die das Sprite in die Richtung dreht, in die es fliegt. Das Sprite wird nach kurzer Zeit sehr verschwommen und es erscheint bald ein Fehler mit der Meldungout of memory (in dieser Zeile:eagle_img = pygame.transform.rotate (eagle_img, new_angle-angle))

Mein Code:

# eagle movement script
import pygame, math, sys
from pygame.locals import *
pygame.init()
clock = pygame.time.Clock()

# terminate function
def terminate():
    pygame.quit()
    sys.exit()

# incircle function, check if mouse click is inside controller
def incircle(coordinates,cir_center,cir_out_rad):
    if math.sqrt((coordinates[0]-cir_center[0])**2+\
                 (coordinates[1]-cir_center[1])**2) <= cir_out_rad:
        return True
    return False

# speed function, translates the controller movement into eagle movement
def speed(position,cir_center,eagle_speed):
    x_dist = position[0] - cir_center[0]
    y_dist = position[1] - cir_center[1]
    dist = math.sqrt(x_dist**2+y_dist**2)   # distance from controller knob to center
    if dist != 0:
        return [(x_dist/dist)*eagle_speed,(y_dist/dist)*eagle_speed]
    else:
        return [0,0]

# rotation function, rotates the eagle image
def rotation(position,cir_center):
    x_dist = position[0] - cir_center[0]
    y_dist = position[1] - cir_center[1]
    new_radian = math.atan2(-y_dist,x_dist)
    new_radian %= 2*math.pi
    new_angle = math.degrees(new_radian)
    return new_angle

# screen
screenw = 1000
screenh = 700
screen = pygame.display.set_mode((screenw,screenh),0,32)
pygame.display.set_caption('eagle movement')

# variables
green = (0,200,0)
grey = (100,100,100)
red = (255,0,0)
fps = 60

# controller
cir_out_rad = 150    # circle controller outer radius
cir_in_rad = 30     # circle controller inner radius
cir_center = [screenw-cir_out_rad,int(screenh/2)]
position = cir_center    # mouse position

# eagle
eaglew = 100
eagleh = 60
eagle_speed = 3
eagle_pos = [screenw/2-eaglew/2,screenh/2-eagleh/2]
eagle = pygame.Rect(eagle_pos[0],eagle_pos[1],eaglew,eagleh)
eagle_img = pygame.image.load('eagle1.png').convert()
eagle_bg_colour = eagle_img.get_at((0,0))
eagle_img.set_colorkey(eagle_bg_colour)
eagle_img = pygame.transform.scale(eagle_img,(eaglew,eagleh))

# eagle controls
stop_moving = False # becomes True when player stops clicking
rotate = False      # becomes True when there is input
angle = 90          # eagle is 90 degrees in the beginning

# game loop
while True:
    # controls
    for event in pygame.event.get():
        if event.type == QUIT:
            terminate()
        if event.type == MOUSEBUTTONUP:
            stop_moving = True
            rotate = False

    mouse_input = pygame.mouse.get_pressed()
    if mouse_input[0]:
        coordinates = pygame.mouse.get_pos()    # check if coordinates is inside controller
        if incircle(coordinates,cir_center,cir_out_rad):
            position = pygame.mouse.get_pos()
            stop_moving = False
            rotate = True
        else:
            cir_center = pygame.mouse.get_pos()
            stop_moving = False
            rotate = True
    key_input = pygame.key.get_pressed()
    if key_input[K_ESCAPE] or key_input[ord('q')]:
        terminate()

    screen.fill(green)

    [dx,dy] = speed(position,cir_center,eagle_speed)
    if stop_moving:
        [dx,dy] = [0,0]
    if eagle.left > 0:
        eagle.left += dx
    if eagle.right < screenw:
        eagle.right += dx
    if eagle.top > 0:
        eagle.top += dy
    if eagle.bottom < screenh:
        eagle.bottom += dy

    if rotate:
        new_angle = rotation(position,cir_center)
        if new_angle != angle:
            eagle_img = pygame.transform.rotate(eagle_img,new_angle-angle)
            eagle = eagle_img.get_rect(center=eagle.center)
        rotate = False
        angle = new_angle

    outer_circle = pygame.draw.circle(screen,grey,(cir_center[0],cir_center[1]),\
                                  cir_out_rad,3)
    inner_circle = pygame.draw.circle(screen,grey,(position[0],position[1]),\
                                  cir_in_rad,1)
    screen.blit(eagle_img,eagle)
    pygame.display.update()
    clock.tick(fps)

Bitte sag mir, was hier falsch ist und wie ich es verbessern kann. Probieren Sie den Code einfach mit einem Sprite namens "eagle1.png" aus. Vielen Dank