def update(self):
        global spieler
        self.move[0] = -(self.rect.centerx - spieler.rect.centerx)
        self.move[1] = -(self.rect.centery - spieler.rect.centery)
        if self.move[0] > 0:
            self.move[0] = 1
        if self.move[0] < 0:
            self.move[0] = -1
        if self.move[1] > 0:
            self.move[1] = 1
        if self.move[1] < 0:
            self.move[1] = -1
        self.rect.move_ip(self.move)