您可以检查哪些精灵与正方形区域发生碰撞,并将它们传递给一个
Combined
精灵类,使用
union_ip
方法结合矩形,并创建一个新的表面,以便将单个精灵的表面绘制到其中。 (按下
C键组合精灵。)
import pygame as pg
BLUE = pg.Color('dodgerblue1')
SIENNA = pg.Color('sienna1')
GREEN = pg.Color('green')
class Entity(pg.sprite.Sprite):
def __init__(self, pos, color):
super().__init__()
self.image = pg.Surface((42, 68))
self.image.fill(color)
self.rect = self.image.get_rect(topleft=pos)
def move(self, velocity):
self.rect.move_ip(velocity)
class Combined(pg.sprite.Sprite):
def __init__(self, sprites):
super().__init__()
self.rect = sprites[0].rect.copy()
for sprite in sprites[1:]:
self.rect.union_ip(sprite.rect)
self.image = pg.Surface(self.rect.size, pg.SRCALPHA)
for sprite in sprites:
self.image.blit(sprite.image, (sprite.rect.x-self.rect.left,
sprite.rect.y-self.rect.top))
def move(self, velocity):
self.rect.move_ip(velocity)
def main():
pg.init()
screen = pg.display.set_mode((640, 480))
clock = pg.time.Clock()
entity = Entity((50, 80), BLUE)
entity2 = Entity((50, 180), SIENNA)
all_sprites = pg.sprite.Group(entity, entity2)
area = pg.Rect(200, 50, 200, 200)
selected = None
while True:
for event in pg.event.get():
if event.type == pg.QUIT:
return
elif event.type == pg.MOUSEBUTTONDOWN:
for sprite in all_sprites:
if sprite.rect.collidepoint(event.pos):
selected = sprite
elif event.type == pg.MOUSEBUTTONUP:
selected = None
elif event.type == pg.MOUSEMOTION:
if selected:
selected.move(event.rel)
elif event.type == pg.KEYDOWN:
if event.key == pg.K_c:
colliding_sprites = [sprite for sprite in all_sprites
if sprite.rect.colliderect(area)]
combined = Combined(colliding_sprites)
all_sprites.add(combined)
all_sprites.update()
screen.fill((30, 30, 30))
pg.draw.rect(screen, SIENNA, area, 2)
all_sprites.draw(screen)
for sprite in all_sprites:
pg.draw.rect(screen, GREEN, sprite.rect, 1)
pg.display.flip()
clock.tick(60)
if __name__ == '__main__':
main()
pg.quit()
或者,您可以尝试将合并的精灵添加到另一个精灵组或列表中,一起进行blit和移动。