这是我第一次尝试使用遮罩碰撞，但找不到这种特定情况（多边形和精灵遮罩碰撞）的参考。
我希望精灵的能力，以检测其他精灵使用'视野'的方法。下面是我的Pygame应用程序的一个例子：

一堆蠕虫，显示其FOV以进行调试。在这种情况下，我希望他们看到小绿色。首先，我可以将FOV生成为多边形。我在pygame.display Surface（简称program.screen）上绘制它。然后，我检查精灵组中的每个‘目标‘，并检查多边形和目标之间的矩形碰撞-工作正常。所以所有的数学和计算都是正确的，但我不能得到下一位与面具面具碰撞工作。在我所附的代码中，print（“Detection”）语句永远不会被调用。

#Check if entity can detect its target given its fov
#
#@param entity: pygame.sprite.Sprite object performing the look() function
#@param fov: The angle and depth of view of 'entity', in the form of [angle (degrees), depth (pixels)]
#@param target: pygame.sprite.Sprite object the 'entity' is looking out for
#@param program: the main instance that runs and handles the entire application

def look(entity, fov, target, program):
    r = fov[1] * np.cos(np.pi / 180 * fov[0])
    coords_1 = (r * np.sin(entity.rot * np.pi / 180) + entity.x, r * np.cos(entity.rot * np.pi / 180) + entity.y)
    coords_2 = (r * np.sin((entity.rot + 2*fov[0]) * np.pi / 180) + entity.x, r * np.cos((entity.rot + 2*fov[0]) * np.pi / 180) + entity.y)
    poly_coords = ((entity.x, entity.y), coords_1, coords_2)  # The coordinates of the fov

    view = pygame.draw.polygon(program.screen, WHITE, poly_coords)  # Draw the fov white for indication
    pygame.display.update(view)
    # Iterate over all sprites
    for i in program.all_sprites:
        if isinstance(i, target):
            # Rough check for if this item is colliding with the fov polygon
            if view.colliderect(i.rect):
                # Exact check if this item is roughly colliding with the fov polygon
                mask = pygame.mask.from_surface(i.image)
                if pygame.mask.from_surface(program.screen).overlap(mask, (0, 0)):
                    # For now, colour the polygon red as indication
                    signal = pygame.draw.polygon(program.screen, RED, [(entity.x, entity.y), coords_1, coords_2])
                    print("Detection")
                    pygame.display.update(signal)

当我使用

if pygame.sprite.collide_mask(mask, pygame.mask.from_surface(program.screen)):

检查面具时我会得到一个

AttributeError: 'pygame.mask.Mask' object has no attribute 'rect'

我还尝试在不同的表面上绘制多边形，结果与第一个代码相同（未检测到）：

def look(entity, fov, target, program):
    r = fov[1] * np.cos(np.pi / 180 * fov[0])
    coords_1 = (r * np.sin(entity.rot * np.pi / 180) + entity.x, r * np.cos(entity.rot * np.pi / 180) + entity.y)
    coords_2 = (r * np.sin((entity.rot + 2*fov[0]) * np.pi / 180) + entity.x, r * np.cos((entity.rot + 2*fov[0]) * np.pi / 180) + entity.y)
    poly_coords = ((entity.x, entity.y), coords_1, coords_2)  # The coordinates of the fov

    view_layer = pygame.Surface((500, 500))  # some random size big enough to hold the fov
    #view_layer.fill(BLUE)
    view = pygame.draw.polygon(view_layer, WHITE, poly_coords)  # Draw the fov white for indication
    pygame.display.update(view)
    program.screen.blit(view_layer, (min(poly_coords[0]), max(poly_coords[1])))
    pygame.display.update(view)
    # Iterate over all sprites
    for i in program.all_sprites:
        if isinstance(i, target):
            # Rough check for if this item is colliding with the fov polygon
            if view.colliderect(i.rect):
                # Exact check if this item is roughly colliding with the fov polygon
                mask = pygame.mask.from_surface(i.image)
                if pygame.mask.from_surface(view_layer).overlap(mask, (0, 0)):
                    # For now, colour the polygon red as indication
                    signal = pygame.draw.polygon(program.screen, RED, [(entity.x, entity.y), coords_1, coords_2])
                    print("Detection")
                    pygame.display.update(signal)

我尝试的方法有什么问题，或者有更好的方法吗？
谢谢，克雷斯