我试图在pygame中创建一个赛车游戏。我要的是,当汽车离开轨道时,它会减速。我试着用另一个雪碧来做这个,那是赛道的轮廓,当车碰到那个精灵时,它会减速。这不管用,我不知道为什么。有更好的方法吗?在
Img
是汽车图像
Back
是跑道
BackHit
是轮廓
我收到以下错误代码:
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()
下面是一个小例子,它向您展示了如何使用^{} 和^{} 进行像素完美碰撞检测。在
要为背景或轨迹创建遮罩,您需要创建一个额外的图像,使轨迹保持透明或车辆应减速的区域,然后检查汽车是否与轨道或外部区域发生碰撞。在这里我检查绿色三角形是否与“赛道”(蓝线)相撞,在你的游戏中,如果不与赛道相撞,你会让车减速。在
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