我正在尝试在 pygame 中创建赛车游戏。我想要这样,当汽车离开赛道时,它会减速。我试图通过另一个 Sprite 来做到这一点,它是赛道的轮廓,当汽车接触到那个 Sprite 时,它会减速。这不起作用,我不知道为什么。有更好的方法吗?
Img
是汽车图片
后面
是跑道
BackHit
是轮廓
我收到此错误代码:
Traceback (most recent call last): File "C:\Users\Daniella\Desktop\Python\Games\game.py", line 75, in if pygame.sprite.collide_mask(Img, BackHit): File "C:\Users\Daniella\AppData\Roaming\Python\Python36\site-packages\pygame\sprite.py", line 1470, in collide_mask xoffset = right.rect[0] - left.rect[0] AttributeError: 'pygame.Surface' object has no attribute 'rect'
这是代码:
import pygame
Width = 800
Height = 600
Black = (0, 0, 0)
White = (255, 255, 255)
Red = (255, 0, 0)
Green = (0, 255, 0)
Blue = (0, 0, 255)
Yellow = (255, 255, 0)
BackColour = (198, 151, 107)
pygame.init()
GameDisplay = pygame.display.set_mode((Width, Height))
pygame.display.set_caption("A bit Racey")
Clock = pygame.time.Clock()
Img = pygame.image.load("download.png")
ImgWidth = 46
ImgHeight = 68
Img = pygame.transform.scale(Img, (ImgWidth, ImgHeight))
Back = pygame.image.load("back1.png")
BackWidth = Width*4
BackHeight = Height*4
Back = pygame.transform.scale(Back, (BackWidth, BackHeight))
BackHit = pygame.image.load("back1 hit1.png")
BackHitWidth = Width*4
BackHitHeight = Height*4
BackHit = pygame.transform.scale(BackHit, (BackHitWidth, BackHitHeight))
def Car():
GameDisplay.blit(Img, (400-ImgWidth/2, 300-ImgHeight/2))
def Background(X, Y):
GameDisplay.blit(Back, (X, Y))
def BackgroundHit(X, Y):
GameDisplay.blit(BackHit, (X, Y))
X = (Width*0.45)
Y = (Height*0.5)
XChange = 0
YChange = 0
Changer = 1
Crashed = False
while not Crashed:
for Event in pygame.event.get():
if Event.type == pygame.QUIT:
Crashed = True
elif Event.type == pygame.KEYDOWN:
if Event.key == pygame.K_LEFT:
Img = pygame.transform.rotate(Img, -90)
XChange = 5 / Changer
elif Event.key == pygame.K_RIGHT:
Img = pygame.transform.rotate(Img, 90)
XChange = -5 / Changer
elif Event.key == pygame.K_UP:
Img = pygame.transform.rotate(Img, 0)
YChange = 5 / Changer
elif Event.key == pygame.K_DOWN:
Img = pygame.transform.rotate(Img, 180)
YChange = -5 / Changer
if Event.type == pygame.KEYUP:
if Event.key == pygame.K_LEFT or Event.key == pygame.K_RIGHT:
XChange = 0
elif Event.key == pygame.K_UP or Event.key == pygame.K_DOWN:
YChange = 0
if pygame.sprite.collide_mask(Img, BackHit):
Changer = 2
Y += YChange
X += XChange
GameDisplay.fill(White)
BackgroundHit(X, Y)
Background(X, Y)
Car()
pygame.display.update()
Clock.tick(200)
pygame.quit()
quit()
最佳答案
这是一个小例子,向您展示如何使用 pygame.mask.from_surface
和 pygame.Mask.overlap
用于像素完美碰撞检测。
import pygame as pg
# Transparent surfaces with a circle and a triangle.
circle_surface = pg.Surface((60, 60), pg.SRCALPHA)
pg.draw.circle(circle_surface, (30, 90, 200), (30, 30), 30)
triangle_surface = pg.Surface((60, 60), pg.SRCALPHA)
pg.draw.polygon(triangle_surface, (160, 250, 0), ((30, 0), (60, 60), (0, 60)))
def main():
screen = pg.display.set_mode((640, 480))
clock = pg.time.Clock()
# Use `pygame.mask.from_surface` to get the masks.
circle_mask = pg.mask.from_surface(circle_surface)
triangle_mask = pg.mask.from_surface(triangle_surface)
# Also create rects for the two images/surfaces.
circle_rect = circle_surface.get_rect(center=(320, 240))
triangle_rect = triangle_surface.get_rect(center=(0, 0))
done = False
while not done:
for event in pg.event.get():
if event.type == pg.QUIT:
done = True
elif event.type == pg.MOUSEMOTION:
triangle_rect.center = event.pos
# Now calculate the offset between the rects.
offset_x = triangle_rect.x - circle_rect.x
offset_y = triangle_rect.y - circle_rect.y
# And pass the offset to the `overlap` method of the mask.
overlap = circle_mask.overlap(triangle_mask, (offset_x, offset_y))
if overlap:
print('The two masks overlap!', overlap)
screen.fill((30, 30, 30))
screen.blit(circle_surface, circle_rect)
screen.blit(triangle_surface, triangle_rect)
pg.display.flip()
clock.tick(30)
if __name__ == '__main__':
pg.init()
main()
pg.quit()
要为背景或赛道创建 mask ,您需要创建一个额外的图像,并让赛道或汽车应该减速的区域保持透明,然后检查汽车是否与赛道或外部区域发生碰撞。在这里,我检查绿色三角形是否与“轨道”(蓝线)相撞,在您的游戏中,如果汽车没有与轨道相撞,您就会减速。
import pygame as pg
bg_surface = pg.Surface((640, 480), pg.SRCALPHA)
pg.draw.lines(
bg_surface, (30, 90, 200), True,
((60, 130), (300, 50), (600, 200), (400, 400), (150, 300)),
12)
triangle_surface = pg.Surface((60, 60), pg.SRCALPHA)
pg.draw.polygon(triangle_surface, (160, 250, 0), ((30, 0), (60, 60), (0, 60)))
def main():
screen = pg.display.set_mode((640, 480))
clock = pg.time.Clock()
bg_mask = pg.mask.from_surface(bg_surface)
triangle_mask = pg.mask.from_surface(triangle_surface)
bg_rect = bg_surface.get_rect(center=(320, 240))
triangle_rect = triangle_surface.get_rect(center=(0, 0))
done = False
while not done:
for event in pg.event.get():
if event.type == pg.QUIT:
done = True
elif event.type == pg.MOUSEMOTION:
triangle_rect.center = event.pos
offset_x = triangle_rect.x - bg_rect.x
offset_y = triangle_rect.y - bg_rect.y
overlap = bg_mask.overlap(triangle_mask, (offset_x, offset_y))
if overlap:
print('The two masks overlap!', overlap)
screen.fill((30, 30, 30))
screen.blit(bg_surface, bg_rect)
screen.blit(triangle_surface, triangle_rect)
pg.display.flip()
clock.tick(30)
if __name__ == '__main__':
pg.init()
main()
pg.quit()
关于python - pygame中的 Sprite 掩码碰撞问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/46862739/