无法让敌人追上玩家皮格姆

Question

所以我有这些敌人，他们应该像旧街机游戏《机器人战机》中的那样，对玩家施展拳脚。在

问题是，只有几个敌人会去追那个玩家，而其他的敌人只是站在周围，也许会有更多的敌人来追这个玩家。这是怎么回事？在

以下是移动敌人的代码：

class Beetle(pygame.sprite.Sprite):
    '''class that builds up the player class'''

    x_speed = 0
    y_speed = 0

#Beetle construction stuff (images, goes here)

.
.
.



    def speedChange(self,x,y):
        self.x_speed += x
        self.y_speed += y

    def move_towards_player(self, player):

        #contains the beetle to the screen
        self.rect.clamp_ip(screen_rect)

        # find normalized direction vector (dx, dy) between enemy and player
        dx, dy = self.rect.x - player.rect.x, self.rect.y - player.rect.y
        dist = math.hypot(dx, dy)
        if dist == 0: #prevents a divide by zero erro
            dist = 1
        else:

            dx, dy = dx / dist, dy / dist
        # move along this normalized vector towards the player at current speed
        self.rect.x += dx * self.x_speed
        self.rect.y += dy * self.y_speed

while done == False:
   while beetleCount < 10:
        beetle = Beetle() #make a beetle
        random1 = randint(0, width -1 ) #make random positions for the beetle
        random2 = randint(0, height - 1)

        beetle.rect.x = random1 #make new random nums
        beetle.rect.y = random2

        beetle_list.add(beetle) #add beetle to list
        all_sprites_list.add(beetle)
        beetleCount += 1 #increment count'''

    for bug in beetle_list:
        random1 = randint(-1, 1)
        if random1 != 0:

            random2 = randint(-1, 1)
        else:
            random2 = 0

        bug.speedChange(random1, random2)
        bug.move_towards_player(player)

以下是整个代码，供参考：

^{pr2}$

Answer 1

self.rect.x += dx * self.x_speed
self.rect.y += dy * self.y_speed

但是x\u速度和y\u速度是随机的-1，0，或1，对吗？然后它会向一个随机的方向移动。。。也许你的意思是值1比值-1更有可能。在