Pygame: update in the while loop not succesful

Question

A helicopter is shot at. If he is hit, he falls. At the same time, a parachute releases from the helicopter. If the parachute is shot at and also hit by a bullet, the image of the parachute should be replaced with another image.
The jump with the parachute is done by the function absprung. The parachute is created with the Fallschirm class. The shelling is queried via collide.
It doesn't work, the picture is not changed.

def absprung(self):    #Auslöser Fallschirm
    fallschirm = Fallschirm(self.rect.centerx, self.rect.top)
    alle_sprites.add(fallschirm)
    fallschirme.add(fallschirm)

class Fallschirm(pygame.sprite.Sprite):       
    def __init__(self,x,y):
        pygame.sprite.Sprite.__init__(self)   
        self.image = pygame.image.load("Bilder/fallschirm.png").convert_alpha()
        self.image = pygame.transform.scale(self.image,(100,150))
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        self.beschuss = False

    def update(self):      
        if self.beschuss == True:
            self.image = pygame.image.load("Bilder/fadenkreuz.png").convert_alpha()
            self.image = pygame.transform.scale(self.image,(100,150))      
        self.rect.y  +=2
        if self.rect.y > hoehe:
            self.kill()  


hits = pygame.sprite.groupcollide(fallschirme,bullets,False,True)      
for hit in hits:        
     fallschirme.beschuss = True

Are you sure that you call pygame.display.update() or pygame.display.flip()` every frame? — The_spider
– The_spider, Commented Nov 26, 2022 at 10:08
but fallschirme.beschuss = True that will not accept in the updat function . when i insert there print (self.beschuss) i get False as result. — Joachim
– Joachim, Commented Nov 26, 2022 at 13:58

Rabbid76 · Accepted Answer · 2022-11-26 14:05:22Z

2

beschuss is an attribute of a single Falschirm object, but not an attribute of fallschirme. pygame.sprite.groupcollide returns a dictionary of objects that were hit. You must set the attribute to these objects.

hits = pygame.sprite.groupcollide(fallschirme, bullets,False,True)      
for fallschirm in hits:    
    fallschirm.beschuss = True

answered Nov 26, 2022 at 14:05

Rabbid76

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