我试图在pygame中创建一个赛车游戏 . 我想要它,当汽车离开赛道时,它会减慢速度 . 我试图通过另一个精灵来做这个,这是一个轨道的轮廓,当汽车接触到精灵时,它会减慢速度 . 这不起作用,我不知道为什么 . 有一个更好的方法吗?
Img
是汽车图片
Back
是赛道
BackHit
是大纲
我收到此错误代码:
Traceback(最近一次调用最后一次):文件“C:\ Users \ Daniella \ Desktop \ Python \ Games \ game.py”,第75行,如果是pygame.sprite.collide_mask(Img,BackHit):文件“C:\用户\ Daniella \ AppData \ Roaming \ Python \ Python36 \ site-packages \ pygame \ sprite.py“,第1470行,在collide_mask中xoffset = right.rect [0] - left.rect [0] AttributeError:'pygame.Surface'对象没有属性'rect'
This is the code:
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()
1 回答
这是一个小例子,向您展示如何使用pygame.mask.from_surface和pygame.Mask.overlap进行像素完美碰撞检测 .
要为背景或轨道创建遮罩,您需要创建一个额外的图像,并使轨道保持透明或汽车应减速的区域,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“轨道”(蓝色线条)发生碰撞,然后在游戏中,如果它没有与轨道碰撞,则会使车辆减速 .