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Pygame 的问题！Colliderect 函数无法检测到两个矩形何时发生碰撞！尽管没有给出错误消息，但矩形只是相互脱落。为什么会这样，如何解决？连续几天一直在同一个问题上苦苦挣扎！假定的问题点标有注释。提前致谢！

#Start it up
import pygame
pygame.init()
fpsClock = pygame.time.Clock()
#surface = pygame.display.set_mode((640,480),pygame.FULLSCREEN)
surface = pygame.display.set_mode((640,480))
pygame.display.set_caption('Game Skeleton')

#Globals and Misc.
x = 10
y = 350
l = 15
w = 35
moveX=0
moveY=0
characterRect= pygame.Rect(x,y,l,w)
ground = pygame.Rect(0,385,700,385)
ledge1= pygame.Rect(310,330,20,20)
jump=0
white = (255,255,255)
black = (0,0,0)
firebrick = (178,34,34)
blockRects = [ground,ledge1]
contact = False
playOn = True
var=0

#standingLeft = pygame.image.load("images/
#standingRight = pygame.image.load("images/
#walkingRight = pygame.image.load("images/
#walkingLeft = pygame.image.load("images/
#straightJumping = pygame.image.load("images/
#rightJumping = pygame.image.load("images/
#leftJumping = pygame.image.load("images/
#inquire = pygame.image.load("images/
#climbing = pygame.image.load("images/


#Game Loop
while playOn:

    #Take user input
    for event in pygame.event.get():

        if(event.type==pygame.KEYDOWN):

            if(event.key==pygame.K_RIGHT):
                moveX=1

            if(event.key==pygame.K_LEFT):
                moveX=-1

            if(event.key==pygame.K_UP):
                moveY=-1

            if(event.key==pygame.K_DOWN):
                moveY=1

            if(event.key==pygame.K_SPACE):
                jump=1

            if(event.key==pygame.K_ESCAPE):
                playOn = False

        if(event.type==pygame.KEYUP):

            if(event.key==pygame.K_RIGHT):
                moveX=0

            if(event.key==pygame.K_LEFT):
                moveX=0

            if(event.key==pygame.K_UP):
                moveY=0

            if(event.key==pygame.K_DOWN):
                moveY=0

    #If user input said to move
    x = x + moveX
    y = y + moveY

    #Jump Code
    if(jump>0 and contact==False):
        y=y-jump - 1
        var=var+1
        if(var>45):
            jump=0
            var=0

    if(contact==False):
        y=y+1

    if(contact!=True):
        contact==False

    #These two "ifs" don't appear to be working D:
    if (ground.colliderect(characterRect)):
        y=y-1
        contact == True

    if(ledge1.colliderect(characterRect)):
        y=y-1
        contact == True

    #Renderings    
    surface.fill(white)
    pygame.draw.rect(surface,black,(x,y,l,w))
    pygame.draw.rect(surface,firebrick,(0,385,700,385))
    pygame.draw.rect(surface,firebrick,(340,350,100,5))   
    fpsClock.tick(80)
    pygame.display.flip()

pygame.quit()
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2 回答 2

3

您正在初始化：

characterRect= pygame.Rect(x,y,l,w)

然后您独立更新 x,y,l,w 变量并忘记characterRect，因此 characterRect 矩形始终位于同一位置。

您可以直接在 上进行更新characterRect或在检查 之前分配新y值colliderect。

@Justin Pearce 更正也很重要，否则您的代码将无法正常工作。

另请查看PEP 8。要获得好看的 python 代码，您应该删除if条件周围的括号。

于 2013-07-22T18:50:34.490 回答
2

你有这个：

if(contact!=True):
    contact==False

#These two "ifs" don't appear to be working D:
if (ground.colliderect(characterRect)):
    y=y-1
    contact == True

if(ledge1.colliderect(characterRect)):
    y=y-1
    contact == True

那不应该吗？：

if(contact!=True):
    contact=False

#These two "ifs" don't appear to be working D:
if (ground.colliderect(characterRect)):
    y=y-1
    contact = True

if(ledge1.colliderect(characterRect)):
    y=y-1
    contact = True

双等号是比较运算符，而不是赋值运算符。

于 2013-07-22T17:48:53.207 回答