def check_bouncing(self, platform_1p: Platform, platform_2p: Platform):
physics.bounce_in_box(self.rect, self._speed, self._play_area_rect)
# Check if the ball hits the platform or not
target_platform = None
cur_pos = Vector2(self.rect.x, self.rect.y)
if physics.collide_or_tangent(self, platform_1p):
target_platform = platform_1p
elif physics.collide_or_tangent(self, platform_2p):
target_platform = platform_2p
# Additional checking for the ball passing through the corner of the platform
# Determine if the routine of the ball intersects with the platform
elif self.rect.bottom < platform_1p.rect.bottom:
line_top_right = (cur_pos + Vector2(self.rect.width, 0), \
self._last_pos + Vector2(self.rect.width, 0))
line_top_left = (cur_pos, self._last_pos)
if self._ball_routine_hit_platform( \
platform_1p, line_top_right, line_top_left):
target_platform = platform_1p
elif self.rect.top > platform_2p.rect.top:
line_bottom_right = (cur_pos + Vector2(self.rect.width, self.rect.height), \
self._last_pos + Vector2(self.rect.width, self.rect.height))
line_bottom_left = (cur_pos + Vector2(0, self.rect.height), \
self._last_pos + Vector2(0, self.rect.height))
if self._ball_routine_hit_platform( \
platform_2p, line_bottom_right, line_bottom_left):
target_platform = platform_2p
if target_platform:
physics.bounce_off_ip(self.rect, self._speed, \
target_platform.rect, target_platform._speed)
def check_hit_brick(self, group_brick: pygame.sprite.RenderPlain) -> int:
"""
Check if the ball hits bricks in the `group_brick`.
The hit bricks will be removed from `group_brick`, but the alive hard brick will not.
However, if the ball speed is high, the hard brick will be removed with only one hit.
@param group_brick The sprite group containing bricks
@return The number of destroyed bricks
"""
hit_bricks = pygame.sprite.spritecollide(self, group_brick, 1,
physics.collide_or_contact)
num_of_destroyed_brick = len(hit_bricks)
if num_of_destroyed_brick > 0:
# XXX: Bad multiple collision bouncing handling
if (num_of_destroyed_brick == 2 and
(hit_bricks[0].rect.y == hit_bricks[1].rect.y or
hit_bricks[0].rect.x == hit_bricks[1].rect.x)):
combined_rect = hit_bricks[0].rect.union(hit_bricks[1].rect)
physics.bounce_off_ip(self.rect, self._speed, combined_rect, (0, 0))
else:
physics.bounce_off_ip(self.rect, self._speed, hit_bricks[0].rect, (0, 0))
if abs(self._speed[0]) == 7:
for brick in hit_bricks:
if isinstance(brick, HardBrick) and brick.hit():
group_brick.add((brick,))
num_of_destroyed_brick -= 1
return num_of_destroyed_brick
def check_hit_brick(self, group_brick: pygame.sprite.RenderPlain) -> int:
hit_bricks = pygame.sprite.spritecollide(self, group_brick, 1, \
physics.collide_or_tangent)
if len(hit_bricks) > 0:
# XXX: Bad multiple collision bouncing handling
if len(hit_bricks) == 2 and \
hit_bricks[0].rect.y == hit_bricks[1].rect.y:
combined_rect = hit_bricks[0].rect.union(hit_bricks[1].rect)
physics.bounce_off_ip(self.rect, self._speed, combined_rect,
(0, 0))
else:
physics.bounce_off_ip(self.rect, self._speed,
hit_bricks[0].rect, (0, 0))
return len(hit_bricks)
def check_bouncing(self, platform: Platform):
if physics.collide_or_tangent(self, platform):
physics.bounce_off_ip(self.rect, self._speed, platform.rect,
platform._speed)
physics.bounce_in_box(self.rect, self._speed, self._play_area_rect)